tag:blogger.com,1999:blog-48536994965713655732024-03-13T11:27:40.399-07:00Clube de Ciência Escola Básica e Secundária Dom Martinho Vaz de Castelo BrancoClube de Ciência - DMVCBhttp://www.blogger.com/profile/10651485220568476954noreply@blogger.comBlogger92125tag:blogger.com,1999:blog-4853699496571365573.post-10819363330322876492019-01-09T04:30:00.000-08:002019-01-09T04:31:25.143-08:00Estação Meteorológica no AEPSI<iframe src='https://www.weatherlink.com/embeddablePage/show/894817ecb75e4ae2a35854dce6f1fb91/wide' width='560' height='480' frameborder='0'></iframe>Unknownnoreply@blogger.com2tag:blogger.com,1999:blog-4853699496571365573.post-92102706160484403352018-11-15T13:44:00.000-08:002018-11-15T13:52:02.562-08:00Programar um semáforo<div style="text-align: left;">
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<w:LsdException Locked="false" Priority="63" Name="Medium Shading 1 Accent 5"/>
<w:LsdException Locked="false" Priority="64" Name="Medium Shading 2 Accent 5"/>
<w:LsdException Locked="false" Priority="65" Name="Medium List 1 Accent 5"/>
<w:LsdException Locked="false" Priority="66" Name="Medium List 2 Accent 5"/>
<w:LsdException Locked="false" Priority="67" Name="Medium Grid 1 Accent 5"/>
<w:LsdException Locked="false" Priority="68" Name="Medium Grid 2 Accent 5"/>
<w:LsdException Locked="false" Priority="69" Name="Medium Grid 3 Accent 5"/>
<w:LsdException Locked="false" Priority="70" Name="Dark List Accent 5"/>
<w:LsdException Locked="false" Priority="71" Name="Colorful Shading Accent 5"/>
<w:LsdException Locked="false" Priority="72" Name="Colorful List Accent 5"/>
<w:LsdException Locked="false" Priority="73" Name="Colorful Grid Accent 5"/>
<w:LsdException Locked="false" Priority="60" Name="Light Shading Accent 6"/>
<w:LsdException Locked="false" Priority="61" Name="Light List Accent 6"/>
<w:LsdException Locked="false" Priority="62" Name="Light Grid Accent 6"/>
<w:LsdException Locked="false" Priority="63" Name="Medium Shading 1 Accent 6"/>
<w:LsdException Locked="false" Priority="64" Name="Medium Shading 2 Accent 6"/>
<w:LsdException Locked="false" Priority="65" Name="Medium List 1 Accent 6"/>
<w:LsdException Locked="false" Priority="66" Name="Medium List 2 Accent 6"/>
<w:LsdException Locked="false" Priority="67" Name="Medium Grid 1 Accent 6"/>
<w:LsdException Locked="false" Priority="68" Name="Medium Grid 2 Accent 6"/>
<w:LsdException Locked="false" Priority="69" Name="Medium Grid 3 Accent 6"/>
<w:LsdException Locked="false" Priority="70" Name="Dark List Accent 6"/>
<w:LsdException Locked="false" Priority="71" Name="Colorful Shading Accent 6"/>
<w:LsdException Locked="false" Priority="72" Name="Colorful List Accent 6"/>
<w:LsdException Locked="false" Priority="73" Name="Colorful Grid Accent 6"/>
<w:LsdException Locked="false" Priority="19" QFormat="true"
Name="Subtle Emphasis"/>
<w:LsdException Locked="false" Priority="21" QFormat="true"
Name="Intense Emphasis"/>
<w:LsdException Locked="false" Priority="31" QFormat="true"
Name="Subtle Reference"/>
<w:LsdException Locked="false" Priority="32" QFormat="true"
Name="Intense Reference"/>
<w:LsdException Locked="false" Priority="33" QFormat="true" Name="Book Title"/>
<w:LsdException Locked="false" Priority="37" SemiHidden="true"
UnhideWhenUsed="true" Name="Bibliography"/>
<w:LsdException Locked="false" Priority="39" SemiHidden="true"
UnhideWhenUsed="true" QFormat="true" Name="TOC Heading"/>
<w:LsdException Locked="false" Priority="41" Name="Plain Table 1"/>
<w:LsdException Locked="false" Priority="42" Name="Plain Table 2"/>
<w:LsdException Locked="false" Priority="43" Name="Plain Table 3"/>
<w:LsdException Locked="false" Priority="44" Name="Plain Table 4"/>
<w:LsdException Locked="false" Priority="45" Name="Plain Table 5"/>
<w:LsdException Locked="false" Priority="40" Name="Grid Table Light"/>
<w:LsdException Locked="false" Priority="46" Name="Grid Table 1 Light"/>
<w:LsdException Locked="false" Priority="47" Name="Grid Table 2"/>
<w:LsdException Locked="false" Priority="48" Name="Grid Table 3"/>
<w:LsdException Locked="false" Priority="49" Name="Grid Table 4"/>
<w:LsdException Locked="false" Priority="50" Name="Grid Table 5 Dark"/>
<w:LsdException Locked="false" Priority="51" Name="Grid Table 6 Colorful"/>
<w:LsdException Locked="false" Priority="52" Name="Grid Table 7 Colorful"/>
<w:LsdException Locked="false" Priority="46"
Name="Grid Table 1 Light Accent 1"/>
<w:LsdException Locked="false" Priority="47" Name="Grid Table 2 Accent 1"/>
<w:LsdException Locked="false" Priority="48" Name="Grid Table 3 Accent 1"/>
<w:LsdException Locked="false" Priority="49" Name="Grid Table 4 Accent 1"/>
<w:LsdException Locked="false" Priority="50" Name="Grid Table 5 Dark Accent 1"/>
<w:LsdException Locked="false" Priority="51"
Name="Grid Table 6 Colorful Accent 1"/>
<w:LsdException Locked="false" Priority="52"
Name="Grid Table 7 Colorful Accent 1"/>
<w:LsdException Locked="false" Priority="46"
Name="Grid Table 1 Light Accent 2"/>
<w:LsdException Locked="false" Priority="47" Name="Grid Table 2 Accent 2"/>
<w:LsdException Locked="false" Priority="48" Name="Grid Table 3 Accent 2"/>
<w:LsdException Locked="false" Priority="49" Name="Grid Table 4 Accent 2"/>
<w:LsdException Locked="false" Priority="50" Name="Grid Table 5 Dark Accent 2"/>
<w:LsdException Locked="false" Priority="51"
Name="Grid Table 6 Colorful Accent 2"/>
<w:LsdException Locked="false" Priority="52"
Name="Grid Table 7 Colorful Accent 2"/>
<w:LsdException Locked="false" Priority="46"
Name="Grid Table 1 Light Accent 3"/>
<w:LsdException Locked="false" Priority="47" Name="Grid Table 2 Accent 3"/>
<w:LsdException Locked="false" Priority="48" Name="Grid Table 3 Accent 3"/>
<w:LsdException Locked="false" Priority="49" Name="Grid Table 4 Accent 3"/>
<w:LsdException Locked="false" Priority="50" Name="Grid Table 5 Dark Accent 3"/>
<w:LsdException Locked="false" Priority="51"
Name="Grid Table 6 Colorful Accent 3"/>
<w:LsdException Locked="false" Priority="52"
Name="Grid Table 7 Colorful Accent 3"/>
<w:LsdException Locked="false" Priority="46"
Name="Grid Table 1 Light Accent 4"/>
<w:LsdException Locked="false" Priority="47" Name="Grid Table 2 Accent 4"/>
<w:LsdException Locked="false" Priority="48" Name="Grid Table 3 Accent 4"/>
<w:LsdException Locked="false" Priority="49" Name="Grid Table 4 Accent 4"/>
<w:LsdException Locked="false" Priority="50" Name="Grid Table 5 Dark Accent 4"/>
<w:LsdException Locked="false" Priority="51"
Name="Grid Table 6 Colorful Accent 4"/>
<w:LsdException Locked="false" Priority="52"
Name="Grid Table 7 Colorful Accent 4"/>
<w:LsdException Locked="false" Priority="46"
Name="Grid Table 1 Light Accent 5"/>
<w:LsdException Locked="false" Priority="47" Name="Grid Table 2 Accent 5"/>
<w:LsdException Locked="false" Priority="48" Name="Grid Table 3 Accent 5"/>
<w:LsdException Locked="false" Priority="49" Name="Grid Table 4 Accent 5"/>
<w:LsdException Locked="false" Priority="50" Name="Grid Table 5 Dark Accent 5"/>
<w:LsdException Locked="false" Priority="51"
Name="Grid Table 6 Colorful Accent 5"/>
<w:LsdException Locked="false" Priority="52"
Name="Grid Table 7 Colorful Accent 5"/>
<w:LsdException Locked="false" Priority="46"
Name="Grid Table 1 Light Accent 6"/>
<w:LsdException Locked="false" Priority="47" Name="Grid Table 2 Accent 6"/>
<w:LsdException Locked="false" Priority="48" Name="Grid Table 3 Accent 6"/>
<w:LsdException Locked="false" Priority="49" Name="Grid Table 4 Accent 6"/>
<w:LsdException Locked="false" Priority="50" Name="Grid Table 5 Dark Accent 6"/>
<w:LsdException Locked="false" Priority="51"
Name="Grid Table 6 Colorful Accent 6"/>
<w:LsdException Locked="false" Priority="52"
Name="Grid Table 7 Colorful Accent 6"/>
<w:LsdException Locked="false" Priority="46" Name="List Table 1 Light"/>
<w:LsdException Locked="false" Priority="47" Name="List Table 2"/>
<w:LsdException Locked="false" Priority="48" Name="List Table 3"/>
<w:LsdException Locked="false" Priority="49" Name="List Table 4"/>
<w:LsdException Locked="false" Priority="50" Name="List Table 5 Dark"/>
<w:LsdException Locked="false" Priority="51" Name="List Table 6 Colorful"/>
<w:LsdException Locked="false" Priority="52" Name="List Table 7 Colorful"/>
<w:LsdException Locked="false" Priority="46"
Name="List Table 1 Light Accent 1"/>
<w:LsdException Locked="false" Priority="47" Name="List Table 2 Accent 1"/>
<w:LsdException Locked="false" Priority="48" Name="List Table 3 Accent 1"/>
<w:LsdException Locked="false" Priority="49" Name="List Table 4 Accent 1"/>
<w:LsdException Locked="false" Priority="50" Name="List Table 5 Dark Accent 1"/>
<w:LsdException Locked="false" Priority="51"
Name="List Table 6 Colorful Accent 1"/>
<w:LsdException Locked="false" Priority="52"
Name="List Table 7 Colorful Accent 1"/>
<w:LsdException Locked="false" Priority="46"
Name="List Table 1 Light Accent 2"/>
<w:LsdException Locked="false" Priority="47" Name="List Table 2 Accent 2"/>
<w:LsdException Locked="false" Priority="48" Name="List Table 3 Accent 2"/>
<w:LsdException Locked="false" Priority="49" Name="List Table 4 Accent 2"/>
<w:LsdException Locked="false" Priority="50" Name="List Table 5 Dark Accent 2"/>
<w:LsdException Locked="false" Priority="51"
Name="List Table 6 Colorful Accent 2"/>
<w:LsdException Locked="false" Priority="52"
Name="List Table 7 Colorful Accent 2"/>
<w:LsdException Locked="false" Priority="46"
Name="List Table 1 Light Accent 3"/>
<w:LsdException Locked="false" Priority="47" Name="List Table 2 Accent 3"/>
<w:LsdException Locked="false" Priority="48" Name="List Table 3 Accent 3"/>
<w:LsdException Locked="false" Priority="49" Name="List Table 4 Accent 3"/>
<w:LsdException Locked="false" Priority="50" Name="List Table 5 Dark Accent 3"/>
<w:LsdException Locked="false" Priority="51"
Name="List Table 6 Colorful Accent 3"/>
<w:LsdException Locked="false" Priority="52"
Name="List Table 7 Colorful Accent 3"/>
<w:LsdException Locked="false" Priority="46"
Name="List Table 1 Light Accent 4"/>
<w:LsdException Locked="false" Priority="47" Name="List Table 2 Accent 4"/>
<w:LsdException Locked="false" Priority="48" Name="List Table 3 Accent 4"/>
<w:LsdException Locked="false" Priority="49" Name="List Table 4 Accent 4"/>
<w:LsdException Locked="false" Priority="50" Name="List Table 5 Dark Accent 4"/>
<w:LsdException Locked="false" Priority="51"
Name="List Table 6 Colorful Accent 4"/>
<w:LsdException Locked="false" Priority="52"
Name="List Table 7 Colorful Accent 4"/>
<w:LsdException Locked="false" Priority="46"
Name="List Table 1 Light Accent 5"/>
<w:LsdException Locked="false" Priority="47" Name="List Table 2 Accent 5"/>
<w:LsdException Locked="false" Priority="48" Name="List Table 3 Accent 5"/>
<w:LsdException Locked="false" Priority="49" Name="List Table 4 Accent 5"/>
<w:LsdException Locked="false" Priority="50" Name="List Table 5 Dark Accent 5"/>
<w:LsdException Locked="false" Priority="51"
Name="List Table 6 Colorful Accent 5"/>
<w:LsdException Locked="false" Priority="52"
Name="List Table 7 Colorful Accent 5"/>
<w:LsdException Locked="false" Priority="46"
Name="List Table 1 Light Accent 6"/>
<w:LsdException Locked="false" Priority="47" Name="List Table 2 Accent 6"/>
<w:LsdException Locked="false" Priority="48" Name="List Table 3 Accent 6"/>
<w:LsdException Locked="false" Priority="49" Name="List Table 4 Accent 6"/>
<w:LsdException Locked="false" Priority="50" Name="List Table 5 Dark Accent 6"/>
<w:LsdException Locked="false" Priority="51"
Name="List Table 6 Colorful Accent 6"/>
<w:LsdException Locked="false" Priority="52"
Name="List Table 7 Colorful Accent 6"/>
</w:LatentStyles>
</xml><![endif]--><!--[if gte mso 10]>
<style>
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Tabela normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin-top:0cm;
mso-para-margin-right:0cm;
mso-para-margin-bottom:8.0pt;
mso-para-margin-left:0cm;
line-height:107%;
mso-pagination:widow-orphan;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;
mso-fareast-language:EN-US;}
</style>
<![endif]-->
<br />
<div class="MsoNormal">
<b><span style="background: white; color: #2e75b6; font-family: "arial" , sans-serif; font-size: 12.0pt; line-height: 107%;">Alunos do 9ºE criaram um semáforo com recurso à
programação do microcontrolador Arduíno.</span></b><span style="color: #2e75b6; font-size: 12.0pt; line-height: 107%;"></span></div>
<br />
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-59694986916463124042018-06-05T08:27:00.004-07:002018-06-05T08:27:55.324-07:00Para refletir...<span style="background-color: #fff6e5; color: #333333; font-size: 20px;"><span style="font-family: Trebuchet MS, sans-serif;">«Não tentes ser bem sucedido, tenta antes ser um homem de valor.»</span></span><br />
<span style="background-color: #fff6e5; color: #333333; font-size: 20px;"><span style="font-family: Trebuchet MS, sans-serif;"><br /></span></span>
<span style="background-color: #fff6e5; color: #333333; font-size: 20px;"><span style="font-family: Trebuchet MS, sans-serif;">Albert Einstein</span></span>Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-12583395006778485122018-05-29T08:20:00.000-07:002018-05-29T08:20:04.434-07:00Ocupação Científica de Jovens nas Férias<div style="-webkit-text-stroke-width: 0px; background-color: transparent; box-sizing: border-box; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 25.6px; margin: 0px 0px 10px; orphans: 2; padding: 0px; text-align: justify; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
<span style="font-family: "Trebuchet MS", sans-serif;"><span style="font-size: large;"><span style="color: black;"><span style="box-sizing: border-box;">O programa "</span><strong style="box-sizing: border-box; font-family: &quot; font-weight: 400; line-height: 25.6px;">Ciência Viva no Laboratório - Ocupação Científica de Jovens nas Férias"</strong> já envolveu mais de 15 800 alunos que frequentaram estágios científicos em laboratórios de instituições de todo o país.</span></span></span></div>
<div style="text-align: justify;">
<span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
</span></div>
<div style="-webkit-text-stroke-width: 0px; background-color: transparent; box-sizing: border-box; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 25.6px; margin: 0px 0px 10px; orphans: 2; padding: 0px; text-align: justify; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
<span style="color: black; font-family: "Trebuchet MS", sans-serif; font-size: large;">É preciso COMEÇAR CEDO e não perder oportunidades.</span></div>
<div style="text-align: justify;">
<span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #222222; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
</span></div>
<div style="-webkit-text-stroke-width: 0px; background-color: transparent; box-sizing: border-box; color: #222222; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 25.6px; margin: 0px 0px 10px; orphans: 2; padding: 0px; text-align: justify; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
<br /></div>
<div style="text-align: justify;">
<span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #222222; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
</span></div>
<div class="subtitulo" style="-webkit-text-stroke-width: 0px; background-color: transparent; box-sizing: border-box; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: 25.6px; margin: 0px 0px 10px; orphans: 2; padding: 0px; text-align: justify; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
<span style="box-sizing: border-box;"><span style="color: black; font-family: "Trebuchet MS", sans-serif; font-size: large;"><b>A abertura de inscrições para a edição de 2018 está prevista para a primeira semana de Junho. </b></span></span></div>
<div class="subtitulo" style="-webkit-text-stroke-width: 0px; background-color: transparent; box-sizing: border-box; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: 25.6px; margin: 0px 0px 10px; orphans: 2; padding: 0px; text-align: justify; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
<span style="box-sizing: border-box;"><b><span style="font-family: trebuchet ms; font-size: large;"><br /></span></b></span></div>
<div class="subtitulo" style="-webkit-text-stroke-width: 0px; background-color: transparent; box-sizing: border-box; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: 25.6px; margin: 0px 0px 10px; orphans: 2; padding: 0px; text-align: justify; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
<span style="box-sizing: border-box;"><span style="font-family: trebuchet ms; font-size: large;"><a href="https://www.blogger.com/null" name="contacto" style="-webkit-text-stroke-width: 0px; background-color: transparent; box-sizing: border-box; color: #104b80; font-size: 16px; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"></a>Para informações sobre a abertura das inscrições, consulta <a href="http://www.cienciaviva.pt/ocjf/" target="_blank">aqui</a> a página do Programa Ciência Viva com todas as informações necessárias.</span></span></div>
<div class="subtitulo" style="-webkit-text-stroke-width: 0px; background-color: transparent; box-sizing: border-box; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: 25.6px; margin: 0px 0px 10px; orphans: 2; padding: 0px; text-align: justify; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
<span style="box-sizing: border-box;"><b><span style="font-family: trebuchet ms; font-size: large;"><br /></span></b></span></div>
<div class="subtitulo" style="-webkit-text-stroke-width: 0px; background-color: transparent; box-sizing: border-box; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: 25.6px; margin: 0px 0px 10px; orphans: 2; padding: 0px; text-align: justify; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">
<span style="box-sizing: border-box;"><b><span style="font-family: trebuchet ms; font-size: large;"><br /></span></b></span></div>
<b></b><i></i><u></u><sub></sub><sup></sup><strike></strike><span style="font-family: "Trebuchet MS", sans-serif;"></span><span style="font-size: large;"></span><span style="color: black;"></span><b></b><br />Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-30689261782288600302018-05-22T08:13:00.000-07:002018-05-22T08:13:35.269-07:00Nove tarântulas coloridas e peludas encontradas no Brasil<div style="text-align: justify;">
<span style="background-color: #fefefe; color: #0a0a0a;"><span style="font-family: "trebuchet ms" , sans-serif; font-size: large;">«Peludas e coloridas, assim são as nove tarântulas agora identificadas no Brasil. Vivem nas árvores e, apesar de poder haver quem pense que têm um aspecto pouco simpático, são inofensivas.</span></span></div>
<div style="text-align: justify;">
<span style="font-family: "trebuchet ms" , sans-serif; font-size: large;"><span style="background-color: #fefefe; color: #0a0a0a;">Das nove espécies, classificadas em três géneros diferentes, a que mais chama à atenção é a </span><em style="background-color: #fefefe; box-sizing: inherit; color: #0a0a0a; line-height: inherit; text-align: start;">Typhochlaena costae</em><span style="background-color: #fefefe; color: #0a0a0a;">. Tem o corpo pintalgado de cor-de-rosa, amarelo e azul e é das tarântulas arborícolas mais pequenas que se conhecem, com apenas dois ou três centímetros de comprimento.</span></span></div>
<div style="text-align: justify;">
<span style="background-color: #fefefe; color: #0a0a0a;"><span style="font-family: "trebuchet ms" , sans-serif; font-size: large;">Mas no conjunto agora descrito há tarântulas de outras cores e tamanhos, todas elas com um certo ar de peluche, devido aos pêlos no corpo.</span></span></div>
<div style="text-align: justify;">
<span style="font-family: "trebuchet ms" , sans-serif; font-size: large;"><span style="background-color: #fefefe; color: #0a0a0a;">As das espécies </span><em style="background-color: #fefefe; box-sizing: inherit; color: #0a0a0a; line-height: inherit; text-align: start;">Iridopelma katiae</em><span style="background-color: #fefefe; color: #0a0a0a;"> e </span><em style="background-color: #fefefe; box-sizing: inherit; color: #0a0a0a; line-height: inherit; text-align: start;">Pachistopelma bromelicola</em><span style="background-color: #fefefe; color: #0a0a0a;">, cujos representantes podem chegar aos 13 centímetros de comprimento, têm o corpo de um vermelho quase castanho.</span></span></div>
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<span style="background-color: #fefefe; color: #0a0a0a;"><span style="font-family: "trebuchet ms" , sans-serif; font-size: large;">Por que razão o corpo é tão colorido é uma pergunta ainda sem resposta. Esse colorido deve ter alguma função protetora contra predadores. Porém, até ao momento, não se conhece nenhum trabalho que tenha sido feito para demonstrar a real função dessas cores.</span></span></div>
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<a href="https://1.bp.blogspot.com/-fSgAOqXhDJE/WwQygKkWroI/AAAAAAAAAog/1Iete2YBz3AXRHqBkO7Z02Yj6p2Ngw_mgCLcBGAs/s1600/colorful-new-tarantula-species-found-blue_60882_600x450_33e97f6913014d4fd1da9553227aa29c.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" data-original-height="400" data-original-width="533" height="240" src="https://1.bp.blogspot.com/-fSgAOqXhDJE/WwQygKkWroI/AAAAAAAAAog/1Iete2YBz3AXRHqBkO7Z02Yj6p2Ngw_mgCLcBGAs/s320/colorful-new-tarantula-species-found-blue_60882_600x450_33e97f6913014d4fd1da9553227aa29c.jpg" width="320" /></a><span style="font-family: "trebuchet ms" , sans-serif; font-size: large;"><span style="background-color: #fefefe; color: #0a0a0a;">Além de serem coloridas, outro aspecto curioso destes animais, cuja descrição pormenorizada foi publicada na revista </span><em style="background-color: #fefefe; box-sizing: inherit; color: #0a0a0a; line-height: inherit; text-align: start;">ZooKeys</em><span style="background-color: #fefefe; color: #0a0a0a;">, é que algumas das nove espécies vivem dentro de plantas da família das bromélias. “Apenas conhecíamos uma espécie que vivia exclusivamente dentro dessas plantas, e agora temos outra espécie especializada em bromélias”, diz o aracnólogo brasileiro. “Nos locais onde vivem tarântulas arborícolas, esse é dos poucos com água e um refúgio para a luz solar intensa”, acrescenta um investigador, citado num comunicado do grupo editorial da revista.</span></span></div>
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<span style="background-color: #fefefe; color: #0a0a0a;"><span style="font-family: "trebuchet ms" , sans-serif; font-size: large;">A intensa actividade humana, com a destruição do seu habitat, pode ter efeitos perversos na preservação destas espécies, que são dependentes da vegetação. Apesar de não haver estudos que mostrem que estão ameaçadas, o cientista sugere mais investigações, para garantir a conservação das espécies. Além disso, é preciso ter cuidado com outra ameaça: como são espécies coloridas, podem atrair o interesse do comércio de animais de estimação.»</span></span></div>
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<span style="background-color: #fefefe; color: #0a0a0a;"><span style="font-family: "trebuchet ms" , sans-serif; font-size: large;"><br /></span></span></div>
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<span style="background-color: #fefefe; text-align: start;"><span style="color: blue; font-family: "trebuchet ms" , sans-serif; font-size: large;"><b>Nota: A tarântula da foto (de Rogério Bertani) é da espécie <i>Typhoclaena costae e </i>vive no Estado de Tocantins, no Brasil.</b></span></span></div>
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<span style="font-size: x-small;"><span style="background-color: #fefefe; text-align: start;"><span style="font-family: "trebuchet ms" , sans-serif;"><b>Fonte:</b> </span></span><span style="font-family: "trebuchet ms" , sans-serif;">https://www.publico.pt/2012/11/12/ciencia/noticia/nove-tarantulas-coloridas-e-peludas-encontradas-no-brasil-----1572204</span></span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-24050586414791208382018-05-21T08:09:00.002-07:002018-05-21T08:10:23.687-07:00A camada de ozono está a ser destruída por emissões misteriosas<div style="text-align: justify;">
<span style="font-family: "trebuchet ms" , sans-serif;"><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">«Em forma de aerossóis ou refrigerantes, os clorofluorocarbonetos (CFC) foram identificados nos anos 80 como os responsáveis pelo buraco da camada de ozono. Por isso, vários países comprometeram-se a substitui-los. Agora, cientistas dos Estados Unidos, Holanda e Reino Unido voltaram a medir as concentrações de CFC na atmosfera e ficaram surpreendidos. A taxa de declínio de um tipo de CFC na atmosfera – o CFC-11 – abrandou cerca de 50% desde 2012. A equipa sugere num artigo científico publicado esta quinta-feira na revista </span><em style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-clip: border-box; background-color: transparent; background-image: none; background-origin: padding-box; background-position-x: 0%; background-position-y: 0%; background-repeat: repeat; background-size: auto; box-sizing: border-box; color: #0a0a0a; font-family: Georgia,&quot; font-size: 18px; font-style: italic; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">Nature</em><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"> que estas emissões se devam a novas fontes. Suspeita-se de que essas emissões sejam ilegais e possam vir do Leste asiático.</span></span></div>
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<span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-variant: normal; letter-spacing: normal; line-height: 28px; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"></span><span style="font-family: "trebuchet ms" , sans-serif;"><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">Em 1985, descobriu-se um </span><a data-brpx-seen="" href="https://www.publico.pt/2014/03/09/ecosfera/noticia/cientistas-identificam-novos-gases-que-destroem-o-ozono-1627666" style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-clip: border-box; background-color: transparent; background-image: none; background-origin: padding-box; background-position-x: 0%; background-position-y: 0%; background-repeat: repeat; background-size: auto; border-bottom-color: rgb(202, 202, 202); border-bottom-style: solid; border-bottom-width: 1px; box-sizing: border-box; color: #a80014; cursor: pointer; font-family: Georgia,&quot; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" target="_blank">buraco na camada de ozono sobre a Antárctida</a><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">. Na altura, os cientistas perceberam que os químicos sintéticos CFC, usados em aerossóis, refrigerantes, solventes ou na produção de espuma rígida de empacotamento, eram os culpados pela destruição do ozono estratosférico. Esta camada é fundamental para os seres vivos porque absorve mais de 95% da radiação ultravioleta proveniente do Sol. Era necessária uma resposta a este problema. Portanto, em 1987, 150 países assinaram um tratado – o Protocolo de Montreal – em que se comprometiam a eliminar a produção destes gases.</span></span><br />
<span style="color: #b00110; font-family: "trebuchet ms";"><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-family: "georgia" , "times new roman" , serif; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: "trebuchet ms" , sans-serif;">Equipas </span><span style="font-family: "trebuchet ms" , sans-serif;">de cientistas têm vindo a comunicar algumas melhorias na camada de ozono. No final de 2017, a NASA revelava que o buraco da camada de ozono sobre a Antárctida encolheu para o menor tamanho desde 1988. Este assunto foi também uma das boas notícias no </span></span><a data-brpx-seen="" href="https://www.publico.pt/2017/11/13/ciencia/noticia/segundo-aviso-dos-cientistas-a-humanidade-continuamos-a-destruir-a-terra-1792378" style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-clip: border-box; background-color: transparent; background-image: none; background-origin: padding-box; background-position-x: 0%; background-position-y: 0%; background-repeat: repeat; background-size: auto; border-bottom-color: rgb(202, 202, 202); border-bottom-style: solid; border-bottom-width: 1px; box-sizing: border-box; color: #a80014; cursor: pointer; font-family: Georgia,&quot; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" target="_blank"><span style="font-family: "trebuchet ms" , sans-serif;">segundo aviso dos cientistas à humanidade</span></a></span><span style="color: black; font-family: "trebuchet ms";">.</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;"><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">Vamos então às novas notícias: a partir de 2012, verificou-se que o seu declínio abrandou cerca de 50%. “Temos vindo a fazer medições há mais de 30 anos e isto é do mais surpreendente que temos visto”, reage Stephen Montzka, da agência dos oceanos e da atmosfera dos EUA (NOAA) e um dos autores do trabalho, ao jornal </span><em style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-clip: border-box; background-color: transparent; background-image: none; background-origin: padding-box; background-position-x: 0%; background-position-y: 0%; background-repeat: repeat; background-size: auto; box-sizing: border-box; color: #0a0a0a; font-family: Georgia,&quot; font-size: 18px; font-style: italic; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">The Washington Post</em><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">. “As emissões [deste CFC] foram mais altas cerca de 25% em 2014 do que entre 2002 e 2012”, frisa por sua vez ao PÚBLICO Michaela Hegglin.</span></span><br />
<span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-variant: normal; letter-spacing: normal; line-height: 28px; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: "trebuchet ms" , sans-serif;"><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">O aumento das emissões de CFC-11 foi detectado em plumas de ar no Observatório de Mauna Loa, no Havai. </span><a data-brpx-seen="" href="https://www.nature.com/articles/s41586-018-0106-2" style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-clip: border-box; background-color: transparent; background-image: none; background-origin: padding-box; background-position-x: 0%; background-position-y: 0%; background-repeat: repeat; background-size: auto; border-bottom-color: rgb(202, 202, 202); border-bottom-style: solid; border-bottom-width: 1px; box-sizing: border-box; color: #a80014; cursor: pointer; font-family: Georgia,&quot; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;" target="_blank">No artigo científico</a><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">, sugere-se que é provável que estas emissões estejam a ser lançadas no Leste asiático. Mas não é a única opção considerada pelos cientistas no artigo: “Embora esta prova [das plumas] sugira fortemente que o aumento das emissões venha do Leste asiático depois de 2012, mudanças no período de vida do CFC-11 ou da dinâmica nas trocas entre as estratosfera e a troposfera poderão influenciar a magnitude das emissões.” Ainda se refere que o aumento das demolições de edifícios que tinham antigos resíduos de CFC-11 ou uma produção acidental poderão ter causado a emissão desta substância. Contudo, isto não justificaria o aumento registado nos últimos anos.»</span></span></span><br />
<span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-variant: normal; letter-spacing: normal; line-height: 28px; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: "trebuchet ms" , sans-serif;"><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><br /></span></span></span>
<span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: "trebuchet ms" , sans-serif;"><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-size: x-small;"><b>Fonte:</b> https://www.publico.pt/2018/05/17/ciencia/noticia/a-camada-de-ozono-esta-a-ser-destruida-por-emissoes-misteriosas-1830409#&gid=1&pid=1</span></span></span></span><br />
<span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-variant: normal; letter-spacing: normal; line-height: 28px; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: "trebuchet ms" , sans-serif; font-size: x-small;"><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><br /></span></span></span>
<span style="color: black; font-family: "trebuchet ms";"><span style="font-size: large;"></span>Consulta <a href="https://ozonewatch.gsfc.nasa.gov/" target="_blank"><span style="color: red;">aqui</span></a> a monitorização da NASA do buraco na camada de ozono</span></div>
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<span style="font-family: "trebuchet ms" , sans-serif;"><span style="background-color: transparent; color: #0a0a0a; display: inline; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"></span></span><b></b><i></i><u></u><sub></sub><sup></sup><strike></strike><b></b><i></i><u></u><sub></sub><sup></sup><strike></strike><span style="font-family: "trebuchet ms" , sans-serif;"></span><span style="color: black;"></span><b></b><i></i><u></u><sub></sub><sup></sup><strike></strike><span style="font-family: "trebuchet ms" , sans-serif;"></span><b></b><i></i><u></u><sub></sub><sup></sup><strike></strike><span style="font-family: "trebuchet ms" , sans-serif;"></span><span style="font-family: "trebuchet ms";"></span><span style="color: #b00110;"></span><span style="color: black;"></span><br /></div>
Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-91045704228796033152018-05-17T06:47:00.004-07:002018-05-17T06:47:52.716-07:00Ébola já chegou a uma cidade da República Democrática do Congo<div style="text-align: justify;">
<a href="https://1.bp.blogspot.com/-iKdkSOS2zgg/Wv2HchAbqZI/AAAAAAAAAoA/WuvwmviHuW4rBnj2Aj2T3BUXfNOaW61pQCLcBGAs/s1600/virus-ebola_4459_m.jpg" imageanchor="1" style="-webkit-text-stroke-width: 0px; background-color: transparent; clear: right; color: #0066cc; float: right; font-family: Times New Roman; font-size: 16px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; margin-bottom: 1em; margin-left: 1em; orphans: 2; text-align: center; text-decoration: underline; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><img border="0" data-original-height="210" data-original-width="315" src="https://1.bp.blogspot.com/-iKdkSOS2zgg/Wv2HchAbqZI/AAAAAAAAAoA/WuvwmviHuW4rBnj2Aj2T3BUXfNOaW61pQCLcBGAs/s1600/virus-ebola_4459_m.jpg" /></a><a href="https://1.bp.blogspot.com/-iKdkSOS2zgg/Wv2HchAbqZI/AAAAAAAAAoA/WuvwmviHuW4rBnj2Aj2T3BUXfNOaW61pQCLcBGAs/s1600/virus-ebola_4459_m.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"></a><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: "Trebuchet MS", sans-serif;">«O surto do Ébola na República Democrática do Congo entrou numa “nova fase” depois de um caso de infecção por este vírus letal ter sido detectado na cidade de Mbandaka, no Noroeste do país, onde vive um milhão de pessoas – informou esta quinta-feira o ministro da Saúde congolês, Oly Ilunga Kalenga. Por esta razão, a Organização Mundial da Saúde (OMS) convocou uma reunião do Comité de Emergência para esta sexta-feira, 18 de Maio, para analisar os riscos internacionais deste surto, acaba de anunciar o porta-voz da OMS, Christian Lindmeir.</span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"></span><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: Trebuchet MS;">O comité de peritos da OMS vai decidir se declara este surto como “emergência de saúde pública de âmbito internacional”, o que desencadearia um maior envolvimento internacional, mobilizando mais investigação e recursos. </span></span><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: Trebuchet MS;">Até agora, as 23 mortes atribuídas a este surto do vírus do Ébola na República Democrática, divulgado a 8 de Maio, ocorreram em áreas mais isoladas, o que daria às autoridades mais possibilidades de conter o vírus. O anúncio do primeiro caso urbano baixa essas hipóteses.</span></span></div>
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<span style="font-family: Trebuchet MS;"><a href="https://1.bp.blogspot.com/-ecMT1mVBQQw/Wv2HpJldcnI/AAAAAAAAAoE/goZ2LUbfnukBAGEXMsTjd4JmfTR4t2eYACLcBGAs/s1600/Particula_Ebola.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="328" data-original-width="610" height="215" src="https://1.bp.blogspot.com/-ecMT1mVBQQw/Wv2HpJldcnI/AAAAAAAAAoE/goZ2LUbfnukBAGEXMsTjd4JmfTR4t2eYACLcBGAs/s400/Particula_Ebola.jpg" width="400" /></a></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: "Trebuchet MS", sans-serif;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">A OMS, que na quarta-feira fez chegar as </span><a data-brpx-seen="" href="https://www.publico.pt/2018/05/11/ciencia/noticia/oms-preparase-para-o-pior-cenario-do-ebola-no-congo-e-espera-luz-verde-para-enviar-vacina-1829719" style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-clip: border-box; background-color: transparent; background-image: none; background-origin: padding-box; background-position-x: 0%; background-position-y: 0%; background-repeat: repeat; background-size: auto; border-bottom-color: rgb(202, 202, 202); border-bottom-style: solid; border-bottom-width: 1px; box-sizing: border-box; color: #a80014; cursor: pointer; font-family: Georgia,&quot; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">primeiras vacinas experimentais</a><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"> a este país da África central, já manifestou a sua preocupação em relação à chegada da doença a Mbandaka, o que torna o surto muito mais difícil de combater.</span></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: "Trebuchet MS", sans-serif;">É a nona vez que um surto de Ébola é registado na República Democrática do Congo (ex-Zaire) desde o primeiro aparecimento conhecido da doença perto do rio Ébola, no Nordeste do país, nos anos 70. O vírus do Ébola é muito temido por causa das hemorragias internas e externas provocadas por danos nos vasos sanguíneos.»</span></span></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: Trebuchet MS; font-size: x-small;"><b>Fonte:</b>https://www.publico.pt/2018/05/17/ciencia/noticia/ebola-ja-chegou-a-uma-cidade-da-republica-democratica-do-congo-1830400</span></span></span></span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-92033153564926770382018-05-15T07:41:00.000-07:002018-05-15T07:41:34.050-07:00Filme mostra como a infecção por VIH acontece por via sexual<div style="text-align: justify;">
<span style="font-family: "Trebuchet MS", sans-serif;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">«Uma equipa de investigadores em França construiu um modelo </span><em style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-clip: border-box; background-color: transparent; background-image: none; background-origin: padding-box; background-position-x: 0%; background-position-y: 0%; background-repeat: repeat; background-size: auto; box-sizing: border-box; color: #0a0a0a; font-family: Georgia,&quot; font-size: 18px; font-style: italic; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">in vitro</em><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"> da camada mucosa da uretra para observar todos os detalhes do momento do primeiro contacto, por via sexual, entre um linfócito T infetado com o VIH e um novo hospedeiro. O resultado deste trabalho é um vídeo que mostra uma impressionante e nítida sequência dos vários passos da estratégia de ataque na chegada do VIH a um novo organismo. Nas imagens vemos, por exemplo, a formação de uma bolsa quando o linfócito T infetado chega até às células epiteliais, e os raios verde fluorescente que o vírus da sida dispara para a mucosa, funcionando como se estivesse munido de uma arma laser. O filme da invasão do VIH foi agora publicado (ou exibido) na revista </span><i>Cell Reports</i>.</span></div>
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<span style="font-family: "Trebuchet MS", sans-serif;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">“Os vírus transmitidos dessa forma atravessam a barreira de células epiteliais e alcançam importantes células do sistema imunitário presentes na mucosa genital, os macrófagos, nos quais o VIH se estabelece de forma latente e duradoura”, esclarece Fernando Real. O mecanismo usado pelo </span><a data-brpx-seen="" href="https://www.publico.pt/2017/12/01/ciencia/noticia/ataque-ao-vih-nos-laboratorios-e-por-cientistas-portugueses-1794529" style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-clip: border-box; background-color: transparent; background-image: none; background-origin: padding-box; background-position-x: 0%; background-position-y: 0%; background-repeat: repeat; background-size: auto; border-bottom-color: rgb(202, 202, 202); border-bottom-style: solid; border-bottom-width: 1px; box-sizing: border-box; color: #a80014; cursor: pointer; font-family: Georgia,&quot; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">vírus da sida</a><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"> neste momento da infecção era conhecido, mas, ainda assim, os investigadores ficaram surpreendidos com o que observaram no tecido vivo</span></span></div>
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<span style="font-family: "Trebuchet MS", sans-serif;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">“Foi surpreendente e impressionante observarmos que as células infetadas espalhavam vírus em jatos direcionados às células epiteliais, pulverizando VIH pela mucosa genital durante minutos. O fenómeno era claramente distinto das transmissões de VIH entre células isoladas </span><em style="-webkit-text-stroke-width: 0px; background-attachment: scroll; background-clip: border-box; background-color: transparent; background-image: none; background-origin: padding-box; background-position-x: 0%; background-position-y: 0%; background-repeat: repeat; background-size: auto; box-sizing: border-box; color: #0a0a0a; font-family: Georgia,&quot; font-size: 18px; font-style: italic; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">in vitro</em><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"> descritas anteriormente na literatura científica”, confirma Fernando Real. As imagens são, de facto, impressionantes e permitem acompanhar a estratégia de invasão deste vírus, marcado a verde fluorescente, no tecido da camada mucosa da uretra.»</span></span></div>
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<span style="font-family: "Trebuchet MS", sans-serif;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><br /></span></span></div>
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<span style="font-family: "Trebuchet MS", sans-serif;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">Vê <a href="https://vimeo.com/269673904" target="_blank">aqui</a> a Infeção do VIH vista em direto</span></span></div>
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<span style="font-family: "Trebuchet MS", sans-serif;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-size: 18px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><br /></span></span></div>
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<span style="font-family: "Trebuchet MS", sans-serif; font-size: x-small;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; color: #0a0a0a; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><b>Fonte:</b>https://www.publico.pt/2018/05/15/ciencia/noticia/filme-mostra-como-a-infeccao-por-vih-acontece-por-via-sexual-1830004</span></span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-90387498378761514122018-05-08T08:09:00.003-07:002018-05-08T08:09:30.856-07:005 curiosidades sobre Einstein<div class="heading_container" style="background-color: white; box-sizing: inherit; color: #1a1a1a; counter-increment: counter 1; margin: 3rem 0px 1.5rem; padding: 0px;">
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<span style="font-family: Trebuchet MS, sans-serif; font-size: small;">1. Os pais estavam preocupados com as suas capacidades cognitivas</span></h1>
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<span style="font-family: Trebuchet MS, sans-serif;">É considerado um dos maiores génios da história, mas, em criança, os seus pais até recearam que tivesse problemas cognitivos. No livro do jornalista Denis Brian, <em style="box-sizing: inherit; line-height: inherit;">Einstein: a life, </em>sugere-se que os pais de Albert Einstein (Hermann Einstein e Pauline Koch) ficaram alarmados com o tempo que o filho demorou até conseguir falar — não o fez antes dos três anos, como o próprio Einstein contou em 1954, ao seu primeiro biógrafo, Carl Seelig:</span></div>
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<span style="font-family: Georgia, Times, "Times New Roman", serif; text-align: start;">"<b><i>Os meus pais estavam preocupados porque comecei a falar tarde, comparativamente [a outras crianças], e consultaram um médico por causa disso. Não te consigo dizer que idade tinha na altura, mas não tinha certamente menos de três anos", revelou.</i></b></span></div>
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<span style="font-family: "Trebuchet MS", sans-serif; letter-spacing: -0.31px;"><b>2. Primeiro artigo científico escrito aos 15 ou 16 anos</b></span></div>
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<span style="font-family: Trebuchet MS, sans-serif;">Com que idade escreveu Albert Eistein o seu primeiro artigo científico? Com 15 ou 16 anos, ou seja, entre 1894 e 1895, segundo o site Business Insider, que <a href="http://www.businessinsider.com/einstein-biography" style="box-sizing: inherit; line-height: inherit; text-decoration-line: none;" target="_blank">cita</a> a coleção de ensaios “A Era de Ouro da Física Teórica”, organizada pelo historiador científico Jagdish Mehra. Escreveu-o já em Itália, para onde a sua família se mudou em 1894. O seu ensaio, intitulado “Sobre a investigação acerca do estado do éter nos campos magnéticos”, foi enviado ao seu tio materno, Casar Kach, que vivia então em Antuérpia (Bélgica).</span></div>
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<span style="font-family: "Trebuchet MS", sans-serif; letter-spacing: -0.31px;"><b>3. Excecional a física… não tão bom a matemática</b></span></div>
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<span style="font-family: Trebuchet MS, sans-serif;">Aos 21 anos, em 1900, Albert Einstein licenciou-se pelo Politécnico de Zurique. Nas cadeiras de física mostrou qualidades excecionais: em 14 das cadeiras que frequentou, teve nota máxima a 5. A matemática, contudo, não era tão bom, relata o Business Insider, que cita ainda uma frase do físico, já mais velho, que reflete sobre as suas considerações iniciais sobre a disciplina:</span></div>
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<span style="font-family: Georgia, Times, "Times New Roman", serif; text-align: start;"><b><i>"Ainda não tinha percebido, enquanto estudante, que um conhecimento mais profundo dos princípios básicos de física estava diretamente ligado aos métodos matemáticos mais complexo."</i></b></span></div>
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<span style="font-family: Trebuchet MS, sans-serif;"><span style="color: #1a1a1a; text-align: start;">Recorde-se que Albert Eistein também refletiu muito sobre os temas de educação, dando vários conselhos sobre como se deve educar os jovens. Pode lê-los </span><a href="https://observador.pt/2015/11/30/como-educar-os-jovens-5-conselhos-de-einstein/" style="box-sizing: inherit; color: #57a0d7; line-height: inherit; text-align: start; text-decoration-line: none;" target="_blank">aqui</a><span style="color: #1a1a1a; text-align: start;">.</span></span></div>
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<span style="font-family: "Trebuchet MS", sans-serif; letter-spacing: -0.31px;"><b>4. Um dos grandes inimigos para a vida: Henri Bergson</b></span></div>
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<span style="font-family: Trebuchet MS, sans-serif;">O filósofo francês Henri Bergson foi um dos grandes inimigos de Albert Einstein. Segundo a New Yorker, este <a href="http://www.newyorker.com/tech/elements/albert-einsteins-sci-fi-stories" style="box-sizing: inherit; line-height: inherit; text-decoration-line: none;" target="_blank">ficou “particularmente irritado” </a>pela proeminência de cientistas (que não de ciências sociais) e físicos no meio intelectual (e Einstein era um delas). Nas suas teorias defendia que a noção de tempo não podia ser reduzida ao tempo cronometrado, visível nos relógios, e que a ciência exata e o racionalismo não eram as melhores ferramentas para compreender a realidade. </span><span style="font-family: "Trebuchet MS", sans-serif;">Einstein opunha-se, e os dois discutiram o assunto para o resto das suas vidas. Henri Bergson chegou mesmo a sugerir que o talento de Einstein não era assim tão diferente do de H. G. Wells, escritor de ficção científica, cujo romance “A Máquina do Tempo” considerava o tempo como pertencendo a uma quarta dimensão.</span></div>
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<span style="color: #222222; font-family: "Trebuchet MS", sans-serif; letter-spacing: -0.31px;"><b>5. Quando ganhou um Nobel, não foi pela teoria da relatividade</b></span></div>
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<span style="font-family: Trebuchet MS, sans-serif;">Quando Albert Einstein ganhou o prémio Nobel da Física, em 1921, não foi com a Teoria Geral da Relatividade, mas “pelos seus serviços para a Física Teórica, em especial pela sua descoberta da lei do efeito fotoelétrico”. A New Yorker <a href="http://www.newyorker.com/tech/elements/albert-einsteins-sci-fi-stories" style="box-sizing: inherit; color: #57a0d7; line-height: inherit; text-decoration-line: none;" target="_blank">liga</a> o facto de Einstein não ter ganho um Nobel pela Teoria da Relatividade às críticas feitas por Henri Bergson: diz que as objeções deste último “foram parcialmente responsáveis” por isso.</span></div>
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<span style="font-size: x-small;"><span style="color: #1a1a1a; font-family: Trebuchet MS, sans-serif;"><b>Fonte: </b></span><span style="background-color: transparent;"><span style="color: #1a1a1a; font-family: Trebuchet MS, sans-serif;">https://observador.pt/2016/02/11/9-curiosidades-albert-einstein/</span></span></span></div>
Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-73139524960109166322018-05-07T07:43:00.006-07:002018-05-07T07:43:59.998-07:003 importantes descobertas da ciência que foram feitas acidentalmente<div style="background-color: white; box-sizing: border-box; color: #333333; line-height: 25px; margin-bottom: 30px; margin-left: 60px; margin-right: 60px; padding-right: 30px; text-align: justify;">
<strong style="box-sizing: border-box;"><span style="font-family: Trebuchet MS, sans-serif;">1. Raios-X</span></strong></div>
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<span style="font-family: Trebuchet MS, sans-serif;">O físico alemão Wilhelm Roentgen estava a trabalhar com tubos de raios catódicos no seu laboratório quando, em 1895, percebeu que eles iluminavam uma divisória na sala, mesmo quando estavam cobertos. Ele tentou bloquear a luz com vários objetos, mas nada funcionava. Até que ele colocou a sua mão em frente aos tubos e viu a imagem dos seus ossos projetada na divisória. </span><span style="font-family: "Trebuchet MS", sans-serif;">A tecnologia foi aprimorada com chapas fotográficas e começou a ser usada nos hospitais — apesar de, na época, não saberem dos riscos que envolviam esta outra descoberta acidental.</span></div>
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<strong style="box-sizing: border-box;"><span style="font-family: Trebuchet MS, sans-serif;">2. Velcro</span></strong></div>
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<span style="font-family: Trebuchet MS, sans-serif;">Após passear pelos Alpes com seu cachorro, o engenheiro suíço George de Mestral notou que pequenos pedaços de uma planta do género <i>Arctium</i> tinham ficado agarrados à sua roupa. As sementes eram cobertas de pequenos ganchos, que permitiram que elas ficassem presas no cientista. Assim, Mestral decidiu criar um objeto tão aderente quanto aquelas sementes: o velcro.</span></div>
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<strong style="box-sizing: border-box;"><span style="font-family: Trebuchet MS, sans-serif;">3. Insulina</span></strong></div>
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<span style="font-family: Trebuchet MS, sans-serif;">Em 1889, os médicos Oscar Minkowski e Josef von Mering removeram o pâncreas de um cão para entender como o órgão afetava a digestão. Dias depois, moscas aglomeraram-se em volta da urina do bichinho, que estava cheia de açúcar. Ao remover o pâncreas, os médicos não conseguiram descobrir a causa do fenómeno. </span><span style="font-family: "Trebuchet MS", sans-serif;">Duas décadas depois, dois pesquisadores da Universidade de Toronto, Frederick Banting e John Macleod, conseguiram isolar a substância excretada pelo pâncreas que regulava o nível de açúcar no sangue: a insulina. Em 1923, ganharam o Prémio Nobel de Fisiologia ou Medicina.</span></div>
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<span style="color: #333333; font-family: "Trebuchet MS", sans-serif;"><b>F<span style="font-size: x-small;">onte:</span></b><span style="font-size: x-small;"> </span></span><span style="background-color: transparent;"><span style="color: #333333; font-family: Trebuchet MS, sans-serif; font-size: x-small;">https://revistagalileu.globo.com</span></span></div>
Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-1496265574942752392018-04-26T07:06:00.000-07:002018-04-26T07:07:04.791-07:004 bizarrices que acontecem com o corpo no espaço<h3 style="background-color: white; border: 0px; box-sizing: border-box; line-height: 22px; list-style: none; margin: 0px 0px 20px; outline: 0px; padding: 0px 0px 0px 30px; text-align: justify;">
<span style="font-family: "trebuchet ms" , sans-serif; font-size: small;">1. Perda de 12% de densidade óssea</span></h3>
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<span style="font-family: "trebuchet ms" , sans-serif;">Devido à gravidade, o corpo humano é constantemente "forçado para baixo". Por isso, ficar em pé ou fazer uma simples caminhada ao redor da Terra já é considerado um grande exercício. </span><span style="font-family: "trebuchet ms" , sans-serif;">Porém, no espaço, a gravidade não existe e isso faz com que os astronautas percam uma grande quantidade de densidade muscular e óssea. Além disso, quando um corpo "não pesa", os músculos encolhem e absorvem o tecido que sobra. </span><span style="font-family: "trebuchet ms" , sans-serif;">Para diminuir esses efeitos, os astronautas têm de realizar até 2,5 horas de exercícios diários em esteiras e outras máquinas criadas especialmente para locais sem gravidade.</span></div>
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<span style="font-family: "trebuchet ms" , sans-serif; font-size: small;">2. Insónia</span></h3>
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<span style="font-family: "trebuchet ms" , sans-serif;">Novamente, devido à falta de gravidade, os astronautas, para dormir, têm de fixar os seus sacos de dormir numa parede ou a um teto. Eles não precisam de colchões ou almofadas confortáveis, pois os seus corpos flutuam e relaxam facilmente.</span><span style="font-family: "trebuchet ms" , sans-serif;">Na Estação Espacial Internacional, existem seis cabines construídas exclusivamente para os astronautas terem uma boa noite de sono. Apesar de toda essa preparação, a maioria dos astronautas reclama que consegue dormir, no máximo, seis horas por dia.</span></div>
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<span style="font-family: "trebuchet ms" , sans-serif; font-size: small;">3</span><span style="color: rgba(0 , 0 , 0 , 0.9); font-family: "roboto" , sans-serif; font-size: 22px;">.</span><span style="font-family: "trebuchet ms" , sans-serif; font-size: small;"> O sangue não flui tão bem</span></h3>
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<span style="font-family: "trebuchet ms" , sans-serif;">As pernas não recebem a mesma quantidade de sangue no espaço em comparação com a abundância de fluidos que recebe na Terra. O coração continua a bombear sangue suficiente para os membros inferiores, porém, os vasos sanguíneos da perna tornam-se preguiçosos com a falta de gravidade. </span><span style="font-family: "trebuchet ms" , sans-serif;">Assim, quando os astronautas retornam à Terra e o sangue volta a correr normalmente, eles podem sentir alguns efeitos colaterais, como tonturas e desmaios. Isso acontece porque alguns vasos sanguíneos menores têm dificuldade em enviar o sangue de volta para a parte superior do corpo.</span></div>
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<span style="font-family: "trebuchet ms" , sans-serif; font-size: small;">4. A visão pode piorar</span></h3>
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<span style="font-family: "trebuchet ms" , sans-serif;">Um <a href="https://www.newscientist.com/article/dn21585-space-is-bad-for-astronauts-eyes/" style="border: 0px; box-sizing: border-box; list-style: none; margin: 0px; outline: 0px; padding: 0px;" target="_blank">estudo recente</a> da Escola de Medicina do Texas revelou que a visão dos astronautas pode ser danificada devido às mudanças na pressurização no espaço. Os pesquisadores fizeram ressonâncias magnéticas em 27 astronautas da NASA, depois de eles terem passado 108 dias no espaço. </span><span style="font-family: "trebuchet ms" , sans-serif;">Quatro tinham o nervo ótico inchado, três tiveram torções na bainha do nervo e seis tinham o globo ocular achatado. As alterações são similares às observadas em pessoas com hipertensão intracraniana idiopática, uma condição em que a pressão do sangue e de outros fluidos é anormalmente elevada no cérebro. </span><span style="font-family: "trebuchet ms" , sans-serif;">No espaço, essas mudanças podem estar relacionadas com o fato de os astronautas viverem em queda livre. Num dos seus </span><a href="https://www.youtube.com/watch?v=IKVjUCN0YPw" style="border: 0px; box-sizing: border-box; font-family: "Trebuchet MS", sans-serif; list-style: none; margin: 0px; outline: 0px; padding: 0px;" target="_blank">vídeos na ISS</a><span style="font-family: "trebuchet ms" , sans-serif;">, o astronauta canadiano Chris Hadfield explicou que todos os tripulantes fazem exames constantes aos olhos para entender como o espaço pode danificar a visão. U</span><span style="font-family: "trebuchet ms" , sans-serif;">m dos equipamentos utilizados pelos astronautas é o tonómetro. Com ele, é possível saber se a pressão nos olhos está normal. Além disso, eles também fazem ultrassons nos olhos para ver o estado do nervo ótico.</span></div>
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<span style="font-size: x-small;"><span style="font-family: "trebuchet ms" , sans-serif;"><b>Fonte:</b></span><span style="background-color: transparent;"><span style="font-family: "trebuchet ms" , sans-serif;">https://super.abril.com.br/ciencia/7-bizarrices-que-acontecem-com-o-corpo-no-espaco/</span></span></span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-52622715529602313682018-04-26T03:07:00.005-07:002018-04-26T03:07:46.514-07:00Ártico tem concentração recorde de microplásticos<div style="text-align: justify;">
<span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="color: black; font-family: "Trebuchet MS", sans-serif; font-size: large;">«Em três expedições, cientistas da Alemanha recolheram amostras de gelo marítimo do Ártico. Verificaram que as concentrações de microplásticos podem chegar a mais de 12 mil partículas por cada litro de gelo.</span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: trebuchet ms; font-size: large;"><br /></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="color: black; font-family: "Trebuchet MS", sans-serif; font-size: large;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;">Os microplásticos são formados pela deterioração de peças maiores de plástico no mar ou surgem ainda em terra pela lavagem de têxteis sintéticos, pela abrasão dos pneus de carros ou já incorporados em produtos de limpeza corporal e cosméticos.</span></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="color: black; font-family: "Trebuchet MS", sans-serif; font-size: large;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><br /></span></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="color: black; font-family: "Trebuchet MS", sans-serif; font-size: large;">Nessas expedições, os cientistas recolheram amostras de cinco regiões do oceano Árctico desde a deriva transpolar (a maior corrente do oceano Ártico) até ao estreito de Fram (liga o oceano Ártico e o mar da Gronelândia). É neste espaço que acontece o transporte de gelo marítimo entre o Ártico Central e o Atlântico Norte. Depois, para calcularem a quantidade de microplásticos, os cientistas analisaram as várias camadas de gelo com um espectrómetro de infravermelhos e usaram um método matemático.»</span></span></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: trebuchet ms; font-size: large;"><br /></span></span></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: trebuchet ms; font-size: large;">Ver galeria de imagens <a href="https://www.publico.pt/2018/04/24/ciencia/noticia/arctico-tem-concentracao-recorde-de-microplasticos-1811563" target="_blank">aqui</a></span></span></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: trebuchet ms; font-size: large;"><br /></span></span></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-variant: normal; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="-webkit-text-stroke-width: 0px; background-color: transparent; display: inline !important; float: none; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; line-height: 28px; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px;"><span style="font-family: trebuchet ms; font-size: x-small;"><b>Fonte: </b>https://www.publico.pt/2018/04/24/ciencia/noticia/arctico-tem-concentracao-recorde-de-microplasticos-1811563</span></span></span></span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-25009968505003033162018-04-17T07:47:00.000-07:002018-04-17T07:47:17.363-07:00A Lua em 4K, com crateras e marcas da presença humana em ultra-alta definição<div style="text-align: justify;">
<span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><span style="background-color: #fefefe; color: #0a0a0a;">«Um </span><a data-brpx-seen="" href="https://moon.nasa.gov/resources/168/tour-of-the-moon-4k/" style="background-color: #fefefe; border-bottom: 1px solid rgb(202, 202, 202); box-sizing: inherit; color: #a80014; cursor: pointer; line-height: inherit; text-decoration-line: none;" target="_blank">vídeo partilhado pela NASA</a><span style="background-color: #fefefe; color: #0a0a0a;"> no início desta semana tornou possível dar um saltinho à Lua, sem sair da Terra, e explorar as suas crateras e vastas planícies, assim como o rasto deixado pelos astronautas que pisaram o solo lunar. As imagens recolhidas pela câmara instalada na sonda espacial Lunar Reconaissance Orbiter (LRO), em órbita desde 2009, foram agora divulgadas em ultra-alta definição 4K. Com maior resolução (3840x2160p), estas imagens têm uma qualidade quatro vezes superior ao Full HD e permitem uma melhor visualização dos detalhes.»</span></span></div>
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<span style="font-size: x-small;"><span style="font-family: Trebuchet MS, sans-serif;"><span style="background-color: #fefefe; color: #0a0a0a;">Fonte: </span></span><span style="color: #0a0a0a; font-family: Trebuchet MS, sans-serif;">https://www.publico.pt/2018/04/14/ciencia/noticia/das-crateras-as-marcas-humanas-e-possivel-fazer-uma-visita-a-lua-em-alta-resolucao-1810402</span></span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-28073857087003234282018-04-09T08:22:00.001-07:002018-04-09T08:22:25.983-07:00Uma mensagem para o 3.º período letivo<div style="text-align: justify;">
<span style="background-color: white; color: #333333; line-height: 35px;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">"Coragem é a resistência ao medo, domínio do medo, e não a ausência do medo."</span></span></div>
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<span style="background-color: white; color: #333333; line-height: 35px;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Mark Twain</span></span></div>
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<span style="background-color: white; color: #333333; font-family: georgia; font-size: x-small; line-height: 35px; text-align: start;">Fonte: </span><span style="color: #333333; font-family: georgia; font-size: x-small; text-align: start;"><span style="line-height: 35px;"><span style="background-color: white;">http://w</span>ww.citador.pt/frases/citacoes/t/coragem</span></span></div>
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<br />Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-69923137016776776692018-03-22T08:08:00.003-07:002018-03-22T08:08:57.063-07:00Morreu o último rinoceronte-branco-do-norte macho<div style="text-align: justify;">
<a href="https://2.bp.blogspot.com/-h2jzNu59sw8/WrPGzqEKhqI/AAAAAAAAAiw/Q49o9O7fpakrvB1G-PgWTm2aTz2NW5VywCLcBGAs/s1600/Rinoceronte%2BBranco.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" data-original-height="668" data-original-width="1200" height="178" src="https://2.bp.blogspot.com/-h2jzNu59sw8/WrPGzqEKhqI/AAAAAAAAAiw/Q49o9O7fpakrvB1G-PgWTm2aTz2NW5VywCLcBGAs/s320/Rinoceronte%2BBranco.jpg" width="320" /></a><span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><em style="background-color: #fefefe; box-sizing: inherit; line-height: inherit;">«S</em><em style="background-color: #fefefe; box-sizing: inherit; line-height: inherit;">udan</em><span style="background-color: #fefefe;">, o último rinoceronte-branco-do-norte macho, morreu nesta segunda-feira aos 45 anos. A informação foi avançada pela reserva natural queniana de Ol Pejeta, onde o animal vivia desde 2009. Com a saúde de </span><em style="background-color: #fefefe; box-sizing: inherit; line-height: inherit;">Sudan</em><span style="background-color: #fefefe;"> a deteriorar-se de dia para dia, a reserva natural tomou a decisão de o abater, conforme explica em comunicado. Agora há apenas duas fêmeas de rinoceronte-branco-do-norte no mundo inteiro.</span></span></div>
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<span style="background-color: #fefefe; text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">“O seu estado de saúde piorou significativamente nas últimas 24 horas; estava impedido de se levantar e estava a sofrer bastante”, informou a reserva natural Ol Pejeta, citada pela Reuters. “A equipa veterinária do zoológico de Dver Kralove, o Ol Pejeta e os Serviços de Fauna Selvagem do Quénia decidiram eutanasiá-lo</span></span><span style="background-color: #fefefe; font-family: "Trebuchet MS", sans-serif; font-size: large; text-align: start;">“</span><span style="background-color: #fefefe; text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">.</span></span></div>
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><em style="background-color: #fefefe; box-sizing: inherit; line-height: inherit; text-align: start;">Sudan</em><span style="background-color: #fefefe; text-align: start;"> sofria de problemas nos músculos e nos ossos, provocados pela idade avançada. Nos seus últimos dois meses de vida, </span><em style="background-color: #fefefe; box-sizing: inherit; line-height: inherit; text-align: start;">Sudan</em><span style="background-color: #fefefe; text-align: start;"> lutou contra uma infecção recorrente na pata esquerda. No início de Março, a equipa da reserva natural informou que o rinoceronte tinha sofrido uma recaída e que estava em estado grave (...).</span></span></div>
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><span style="background-color: #fefefe; text-align: start;">“É muito triste perder o </span><em style="background-color: #fefefe; box-sizing: inherit; line-height: inherit; text-align: start;">Sudan</em><span style="background-color: #fefefe; text-align: start;">, porque mostra claramente a extensão da ganância humana e o tipo de impacto que os humanos podem ter na natureza”, disse o responsável pela conservação da vida selvagem de Ol Pejeta, Samuel Mutisya, à Reuters. Mutisya referia-se ao facto de a espécie ter sido caçada até ao limiar da extinção devido à procura internacional pelo corno do rinoceronte.»</span></span></div>
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<span style="font-size: x-small;"><span style="font-family: Trebuchet MS, sans-serif;"><span style="background-color: #fefefe; text-align: start;">Fonte: </span></span><span style="font-family: Trebuchet MS, sans-serif;">https://www.publico.pt/2018/03/20/ciencia/noticia/morreu-o-ultimo-rinocerontebrancodonorte-macho-1807290</span></span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-24909279140261479132018-03-20T09:18:00.000-07:002018-03-20T09:18:08.836-07:00Os polos magnéticos da Terra podem estar prestes a inverter-se, alertam cientistas<div class="afterHeader" style="border: 0px; box-sizing: inherit; margin: 0px 0px 56px; min-height: 1px; outline: 0px; padding: 0px; vertical-align: baseline;">
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<span style="font-size: large;"><span style="font-family: "trebuchet ms" , sans-serif;">«Não é um thriller de ficção cientifica, mas bem podia ser. A polaridade da Terra pode estar prestes a inverter-se e isso pode trazer uma série de consequências graves para o planeta.</span><span style="font-family: "trebuchet ms" , sans-serif;">O núcleo da Terra gera um campo magnético que <span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">atua como um "campo protetor" </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">contra ventos</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> solares e radiações capazes de danificar o planeta.</span></span></span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Este campo estende-se durante milhares de </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">quilómetros</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> no espaço e o seu magnetismo </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">afe</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">ta</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> tudo o que se passa na terra.</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Um grupo de cientistas descobriu que este campo enfraqueceu cerca de 15% ao longo dos </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">últimos</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> 200 anos. E isso, defendem, pode ser sinal de que os</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span class="NormalTextRun SCXW67866944" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> </span></span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">polos</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> magnéticos terrestres</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> estão prestes a inverter-se.</span></div>
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<figure class="placement-centered" style="background-attachment: initial; background-clip: initial; background-image: initial; background-origin: initial; background-position: 0px 0px; background-repeat: initial; background-size: initial; border: 0px; box-sizing: inherit; font-family: "Open Sans", sans-serif; font-size: 18px; height: auto; margin: 5px auto 28px; outline: 0px; padding: 0px; position: relative; vertical-align: baseline; width: 320px;"><picture class="landscape" style="border: 0px; box-sizing: inherit; display: block; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: center; vertical-align: baseline;"><img alt="A animação representa a evolução do campo magnético terrestre, de 1910 a 2020. As linhas azuis representam um campo magnético mais fraco, as linhas vermelhas um campo mais forte. A linha verde é o limite entre ambos. O magnetismo sobre a América do Sul está a enfraquecer e a área vermelha sobre a América do Norte está a perder força. " class=" js-lazy-picture-loaded" data-sizes="(min-width: 1280px) 680px, (min-width: 768px) 75vw, 100vw" data-srcset="//images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-240 240w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-320 320w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-480 480w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-680 680w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-768 768w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-960 960w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-1024 1024w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-1280 1280w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-1920 1920w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-2048 2048w" sizes="(min-width: 1280px) 680px, (min-width: 768px) 75vw, 100vw" src="https://images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-320" srcset="//images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-240 240w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-320 320w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-480 480w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-680 680w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-768 768w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-960 960w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-1024 1024w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-1280 1280w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-1920 1920w, //images-cdn.impresa.pt/visao/2018-02-01-mapa-inversao-polos.gif/original/mw-2048 2048w" style="border: 0px none; box-sizing: inherit; font-size: 12px; font-style: italic; font-weight: inherit; height: auto; margin: 0px; max-width: 100%; outline: 0px; padding: 0px; vertical-align: bottom; width: 320px;" /></picture><figcaption style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 16px 0px 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><div class="caption" style="border: 0px; box-sizing: inherit; font-size: 14px; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; line-height: 1.2em; margin-bottom: 4px; outline: 0px; padding: 0px; vertical-align: baseline;">
A animação representa a evolução do campo magnético terrestre, de 1910 a 2020. As linhas azuis representam um campo magnético mais fraco, as linhas vermelhas um campo mais forte. A linha verde é o limite entre ambos. O magnetismo sobre a América do Sul está a enfraquecer e a área vermelha sobre a América do Norte está a perder força.</div>
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<span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Esta inversão poderá significar a entrada de "correntes devastadoras de partículas do sol, raios </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">cósmicos</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span class="NormalTextRun SCXW67866944" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> </span></span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">gal</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">ácticos</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">, um maior número de raios ultravioleta-B graças a uma camada de ozono danificada pela radiação" na atmosfera terrestre,</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> entre outras coisas que podem magoar </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">ou m</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">esmo </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">matar</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> os seres vivos, afirma </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">a jornalista científica</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span class="NormalTextRun SCXW67866944" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> </span></span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Al</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">anna</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> M</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">itchell,</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> no seu relatório n</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">a plataforma </span><a class="Hyperlink SCXW67866944" href="https://undark.org/article/books-alanna-mitchell-spinning-magnet/" style="border: 0px; box-sizing: inherit; font-family: "Trebuchet MS", sans-serif; font-size: x-large; font-style: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-decoration-line: none; transition-delay: 0.1s; transition-duration: 0.3s; transition-property: color; vertical-align: baseline;" target="_blank"><u style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span class="NormalTextRun SCXW67866944" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Undark</span></u></a><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">.</span></div>
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<span style="font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit;">E os riscos podem não ser, apenas, biológicos: a inversão polar pode interferir com os satélites que controlam as redes elétricas terrestres, levando a apagões generalizados capazes de durar décadas. </span></div>
<div style="border: 0px; box-sizing: inherit; clear: none; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-weight: 400; line-height: 1.4em; margin: 32px 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">
<span style="font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit;">Segundo </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Daniel </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Baker</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">, </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">diretor</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> do </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Laboratory</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> for </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Atmospheric</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span class="NormalTextRun SCXW67866944" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> </span></span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">and</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span class="NormalTextRun SCXW67866944" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> </span></span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Space</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span class="NormalTextRun SCXW67866944" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"></span></span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">Physics</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">, na </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">University</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"><span class="NormalTextRun SCXW67866944" style="border: 0px; box-sizing: inherit; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> </span></span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">of</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> Colorado Boulder</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">,</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;"> parte do planeta poderá ficar mesmo "inabitável</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; vertical-align: baseline;">" durante a inversão, explica no mesmo relatório.</span></div>
<div style="border: 0px; box-sizing: inherit; clear: none; font-stretch: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-weight: 400; line-height: 1.4em; margin: 32px 0px; outline: 0px; padding: 0px; text-align: left; vertical-align: baseline;">
<span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">"I</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">magine </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">momentaneamente</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> que a sua corrente </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">elét</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">rica</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> é cortada durante alguns meses – muito poucas coisas funcionam sem eletricidade nos dias de hoje", explica </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">Richard </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">Holme</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">, professor de </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">ciências</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> na Liverpool </span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">University</span><span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"> ao Mail Online.» </span><br />
<span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: large; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;"><br /></span>
<span class="SCXW67866944 TextRun" style="border: 0px; box-sizing: inherit; font-family: "trebuchet ms" , sans-serif; font-size: x-small; font-weight: inherit; margin: 0px; outline: 0px; padding: 0px; text-align: justify; vertical-align: baseline;">Fonte: http://visao.sapo.pt/actualidade/futuro/2018-02-02-Os-polos-magneticos-da-Terra-podem-estar-prestes-a-inverter-se-alertam-cientistas</span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-61800410261428374682018-03-20T08:57:00.000-07:002018-03-20T08:57:35.508-07:00Vida fora da Terra<div style="text-align: justify;">
<span style="background-color: white;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">«"Se nos confrontássemos com a descoberta de vida fora da Terra, ficaríamos bastante animados com isso", garantiu o investigador Michael Varnum, à frente do estudo que foi apresentado este sábado na reunião anual da Associação Americana para o Avanço da Ciência em Austin, no Texas, EUA.</span></span></div>
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<a href="https://3.bp.blogspot.com/-sYDUtizV8G4/WrEvMZxseyI/AAAAAAAAAiY/Qv4witTbjIo6zn67Olnj7KRWCUcnBeuiwCLcBGAs/s1600/et.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="501" data-original-width="720" height="222" src="https://3.bp.blogspot.com/-sYDUtizV8G4/WrEvMZxseyI/AAAAAAAAAiY/Qv4witTbjIo6zn67Olnj7KRWCUcnBeuiwCLcBGAs/s320/et.jpg" width="320" /></a></div>
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<span style="background-color: white; text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Para fazer o estudo, a equipa de investigadores analisou, através de um programa, a linguagem de notícias publicadas em jornais sobre a possibilidade de se provar que a vida extraterrestre existe. O programa "quantifica emoções, sentimentos, impulsos e outros estados psicológicos em textos escritos" e, como resultado, obtiveram-se "mais emoções positivas do que negativas".</span></span></div>
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<span style="background-color: white; text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">A par da análise do programa, a equipa entrevistou cinco mil pessoas e perguntou-lhes como se sentiriam com essa descoberta. Também aí os resultados apontam para uma reação geral positiva.»</span></span></div>
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<span style="font-size: x-small;"><span style="background-color: white; text-align: start;"><span style="font-family: Trebuchet MS, sans-serif;">Fonte: </span></span><span style="font-family: Trebuchet MS, sans-serif;">https://ionline.sapo.pt/601213 (notícia de 19-02-2018)</span></span></div>
Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-49052375391915542082018-03-15T07:56:00.001-07:002018-03-15T07:56:54.456-07:00Morreu Stephen Hawking, uma singularidade no Universo<div style="text-align: justify;">
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<a href="https://1.bp.blogspot.com/-AqNCsOFLMds/WqqJYEtcaxI/AAAAAAAAAiE/zyGXdW3TLFMPo_noLcrx7KPKT_abuDAmgCLcBGAs/s1600/SH.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="420" data-original-width="300" height="320" src="https://1.bp.blogspot.com/-AqNCsOFLMds/WqqJYEtcaxI/AAAAAAAAAiE/zyGXdW3TLFMPo_noLcrx7KPKT_abuDAmgCLcBGAs/s320/SH.jpg" width="228" /></a></div>
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«<span style="-webkit-text-stroke-width: 0px; background-color: #fefefe; color: #0a0a0a; display: inline !important; float: none; font-style: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><span style="font-family: "Trebuchet MS", sans-serif; font-size: large;">Stephen Hawking, singular a tantos níveis, morreu esta quarta-feira de madrugada na sua casa em Cambridge, aos 76 anos. O físico britânico, um dos nomes da ciência mais prestigiados e o cientista da actualidade mais conhecido em todo o mundo, trouxe um novo olhar sobre os buracos negros, nunca deixando de se indagar sobre a origem do Universo. Ao mesmo tempo que provocava, com humor e intelecto, o que sabíamos sobre o cosmos – tanto junto da academia como do público –, desafiava os próprios limites da vida humana.</span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: #fefefe; color: #0a0a0a; display: inline !important; float: none; font-style: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><span style="font-family: Trebuchet MS; font-size: large;"><br /></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: #fefefe; color: #0a0a0a; display: inline !important; float: none; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"></span><span style="-webkit-text-stroke-width: 0px; background-color: #fefefe; color: #0a0a0a; display: inline !important; float: none; font-style: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><span style="font-family: "Trebuchet MS", sans-serif; font-size: large;">Aos 21 anos, foi-lhe dito que sofria de esclerose lateral amiotrófica e que teria dois anos de vida pela frente. A doença veio a afetá-lo gradualmente, ao ponto de conseguir mexer pouco mais do que um dedo e piscar os olhos, mas o físico fintou o diagnóstico pessimista: com a ajuda de uma cadeira de rodas e um sintetizador de voz, ultrapassou em quase cinco décadas o tempo de vida que lhe era dado – sem nunca prescindir de participar na comunidade científica.</span></span></div>
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<b></b><i></i><u></u><sub></sub><sup></sup><strike></strike><span style="font-family: "Trebuchet MS", sans-serif;"></span><span style="font-size: large;"><br /></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: #fefefe; color: #0a0a0a; display: inline !important; float: none; font-family: Georgia,"Times New Roman",serif; font-style: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><span style="font-size: large;"><span style="font-family: "Trebuchet MS", sans-serif;">Steph</span><span style="font-family: "Trebuchet MS", sans-serif;">en Hawking nasceu em Oxford a 8 de Janeiro de 1942 – precisamente 300 anos depois da morte de Galileu Galilei, como gostava de mencionar – e morreu a 14 de Março deste ano – no dia do nascimento de Albert Einstein há 135 anos, que é também o dia do Pi (3,14).»</span></span></span></div>
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<span style="-webkit-text-stroke-width: 0px; background-color: #fefefe; color: #0a0a0a; display: inline !important; float: none; font-family: Georgia,"Times New Roman",serif; font-style: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><span style="font-family: Trebuchet MS; font-size: x-small;">Fonte: https://www.publico.pt/2018/03/14/ciencia/noticia/morreu-stephen-hawking-1806547</span></span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-38534476398528427932018-03-12T08:53:00.000-07:002018-03-12T08:53:07.666-07:00Vê este robô resolver um cubo mágico em 0,38 segundo<iframe width="320" height="266" class="YOUTUBE-iframe-video" data-thumbnail-src="https://i.ytimg.com/vi/nt00QzKuNVY/0.jpg" src="https://www.youtube.com/embed/nt00QzKuNVY?feature=player_embedded" frameborder="0" allowfullscreen></iframe><br />
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Um robô feito em casa por um <a href="http://blog.cactus.zone/" style="border: 0px; box-sizing: border-box; list-style: none; margin: 0px; outline: 0px; padding: 0px;" target="_blank">engenheiro de software</a> e um estudante de pós-graduação do Instituto de Tecnologia de Massachusetts (MIT), nos EUA, resolveu um cubo mágico em 0,38 segundo – o que dá um movimento a cada 15 milésimos de segundo. O recorde anterior era 0,63 segundo – quase o dobro. </span></div>
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;">As pastilhas cor de laranja foram pintadas de preto para facilitar a vida dos sensores – que não estavam a conseguir distingui-las das vermelhas. Os seis motores utilizados alcançam uma velocidade de mil rotações por minuto em um centésimo de segundo. E os cubos… bem, eram os mais baratos disponíveis na Amazon. Afinal, vários foram destruídos até a máquina chegar na regulação ideal.</span></div>
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<span style="font-size: x-small;"><span style="font-family: Trebuchet MS, sans-serif;">Fonte: </span><span style="background-color: transparent;"><span style="font-family: Trebuchet MS, sans-serif;">https://super.abril.com.br/ideias/veja-este-robo-resolver-um-cubo-magico-em-038-segundo/</span></span></span></div>
Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-23332215304766084432018-03-08T06:44:00.000-08:002018-03-08T06:44:16.439-08:00Recriado o genoma de ave extinta há 700 anos com peça de museu<div style="text-align: justify;">
<span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><span style="background-color: #fefefe; color: #0a0a0a;">«Um grupo de cientistas da Universidade de Harvard (e um ornitólogo de um museu canadiano) conseguiu descodificar a quase totalidade do genoma dos pequenos moas da espécie </span><em style="background-color: #fefefe; box-sizing: inherit; color: #0a0a0a; line-height: inherit;">Anomalopteryx didiformis</em><span style="background-color: #fefefe; color: #0a0a0a;">, que viviam na Nova Zelândia há centenas de anos. Tinham uma estatura parecida com a do peru e eram aves com uma característica distintiva: não tinham asas.</span></span></div>
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><span style="background-color: #fefefe; color: #0a0a0a; text-align: start;">Na Nova Zelândia viviam não só os moas </span><em style="background-color: #fefefe; box-sizing: inherit; color: #0a0a0a; line-height: inherit; text-align: start;">Anomalopteryx didiformis</em><span style="background-color: #fefefe; color: #0a0a0a; text-align: start;">, que podiam atingir cerca de um metro de altura, mas também oito outras espécies destas aves. Ficaram todas extintas há cerca de 600 anos ou 700 anos, altura em que os seres humanos chegaram à ilha – e não foi coincidência, </span><span style="background-color: #fefefe; border-bottom: 1px solid rgb(202, 202, 202); box-sizing: inherit; cursor: pointer; line-height: inherit; text-align: start;">mas sim consequência sobretudo da caça intensiva por parte dos humano</span>s.</span></div>
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><span style="background-color: #fefefe; color: #0a0a0a; text-align: start;">O ADN desta espécie foi reconstituído através do material recolhido de um único osso da pata de uma destas aves, que pertence ao Museu Real do Ontário, no Canadá. O artigo científico em que são apresentadas estes resultados </span><a data-brpx-seen="" href="http://www.biorxiv.org/content/early/2018/02/11/262816.full.pdf+html" style="background-color: #fefefe; border-bottom: 1px solid rgb(202, 202, 202); box-sizing: inherit; color: #a80014; cursor: pointer; line-height: inherit; text-align: start; text-decoration-line: none;" target="_blank">está disponível <em style="box-sizing: inherit; line-height: inherit;">online</em></a><span style="background-color: #fefefe; color: #0a0a0a; text-align: start;"> desde Fevereiro num repositório de acesso livre de trabalhos científicos de biologia – o bioRxiv –, mas ainda não foi publicado em nenhuma revista científica ou </span><a data-brpx-seen="" href="https://www.publico.pt/2017/06/06/ciencia/noticia/erguido-monumento-aos-herois-da-avaliacao-previa-pelos-pares-1774819" style="background-color: #fefefe; border-bottom: 1px solid rgb(202, 202, 202); box-sizing: inherit; color: #a80014; cursor: pointer; line-height: inherit; text-align: start; text-decoration-line: none;" target="_blank">sujeito a avaliação prévia pelos pares</a><span style="background-color: #fefefe; color: #0a0a0a; text-align: start;">. Além da sequenciação completa do ADN das mitocôndrias (as chamadas baterias da célula, que ficam fora do núcleo das células), a equipa relata a primeira descodificação do material genético do núcleo celular de uma espécie de moa.»</span></span></div>
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<span style="font-size: x-small;"><span style="font-family: Trebuchet MS, sans-serif;"><span style="background-color: #fefefe; color: #0a0a0a; text-align: start;"><b>Fonte:</b> </span></span><span style="color: #0a0a0a; font-family: Trebuchet MS, sans-serif;">https://www.publico.pt/2018/03/06/ciencia/noticia/cientistas-recriam-genoma-de-ave-extinta-ha-700-anos-com-adn-de-uma-peca-de-museu-1805091</span><span style="background-color: #fefefe; color: #0a0a0a; font-family: "Trebuchet MS", sans-serif; text-align: start;"> </span></span></div>
Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-73814106737354917532018-03-05T08:13:00.000-08:002018-03-05T08:14:07.442-08:00Outro desafio lógico improvável<span style="font-family: "trebuchet ms" , sans-serif; font-size: large;">Uma mãe tem 30 euros para dividir pelas suas duas filhas.</span><br />
<span style="font-family: "trebuchet ms" , sans-serif; font-size: large;"> Que horas são?</span>Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-62379101204174633062018-02-28T04:45:00.000-08:002018-02-28T04:47:30.103-08:00DESAFIO-FAZER CONTAS: Qual é o resultado assinalado com ???<span style="font-family: "trebuchet ms" , sans-serif;">8809 = 6 <span style="white-space: pre;"> </span>5555 = 0</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">7111 = 0 <span style="white-space: pre;"> </span>8193 = 3</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">2172 = 0<span style="white-space: pre;"> </span>8096 = 5</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">6666 = 4<span style="white-space: pre;"> </span>1012 = 1</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">1111 = 0 <span style="white-space: pre;"> </span>7777 = 0</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">3213 = 0<span style="white-space: pre;"> </span>9999 = 4</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">7662 = 2<span style="white-space: pre;"> </span>7756 = 1</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">9313 = 1 <span style="white-space: pre;"> </span>6855 = 3</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">0000 = 4<span style="white-space: pre;"> </span>9881 = 5</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">2222 = 0<span style="white-space: pre;"> </span>5531 = 0</span><br />
<span style="font-family: "trebuchet ms" , sans-serif;">3333 = 0<span style="white-space: pre;"> </span>2581 = ???</span><br />
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<span style="font-family: "trebuchet ms" , sans-serif;">Enviem as vossas respostas para o blogue.</span>Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-12830491702285795922018-02-22T07:07:00.000-08:002018-02-22T07:07:28.554-08:00Ciências Forenses - Já é possível obter ADN de um cabelo sem raíz<div style="text-align: justify;">
<span style="background-color: #fefefe; color: #0a0a0a;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">«E se já for possível saber que um cabelo sem raiz, encontrado num cenário de crime, é do suspeito? Ou que os vestígios de solo, recolhidos nos sapatos ou nos pneus do carro dele, são iguais aos do local do crime ou aos encontrados na roupa da vítima, recorrendo a uma nova base de dados forenses com duas centenas de amostras de sedimentos (areias) e solos da zona costeira de Portugal continental e de algumas ilhas dos Açores? Uma base de dados ainda em estudo e que, dentro de alguns anos, pode vir a tornar-se um mapa de solos forenses do país.</span></span></div>
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<span style="background-color: #fefefe; color: #0a0a0a; text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Estas são algumas das novidades que foram apresentadas esta semana nas Jornadas de Polícia Científica da Polícia Judiciária (PJ), na sede da PJ de Lisboa. O director do Laboratório de Polícia Científica (LPC), Carlos Farinha, diz que ambas as investigações “podem sempre gerar valor acrescentado, mas que, por enquanto, são uma hipótese de trabalho” que precisa de ser validada, ou seja, testada.</span></span></div>
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<span style="background-color: #fefefe; color: #0a0a0a; text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">“A maioria dos cabelos que chegam para análise de cenas de crime não contêm a raiz e, infelizmente, é nela que a grande maioria do ADN se encontra”, diz por sua vez ao PÚBLICO a investigadora Cátia Martins que conseguiu dar resposta a este problema. Cátia Martins procedeu à análise genética de cabelos sem raiz no âmbito do seu estágio do mestrado em Genética Forense, entre 2015 e 2016, na Faculdade de Ciências da Universidade do Porto, que fez no LPC (Laboratório de Polícia Científica).</span></span></div>
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<span style="background-color: #fefefe; color: #0a0a0a; text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Sendo os cabelos uma das provas mais encontradas em cenas de crime, é difícil obter um perfil genético passível de ser comparado. “Mesmo quando as amostras de cabelos ainda contêm raiz, a probabilidade de obter um perfil de ADN completo, utilizando a metodologia convencional, é de cerca de 60% a 70%.</span></span></div>
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><span style="background-color: #fefefe; color: #0a0a0a; text-align: start;">Em vez dos </span><em style="background-color: #fefefe; box-sizing: inherit; color: #0a0a0a; line-height: inherit; text-align: start;">kits</em><span style="background-color: #fefefe; color: #0a0a0a; text-align: start;"> convencionais usados, a investigadora testou dois novos </span><em style="background-color: #fefefe; box-sizing: inherit; color: #0a0a0a; line-height: inherit; text-align: start;">kits</em><span style="background-color: #fefefe; color: #0a0a0a; text-align: start;"> de quantificação e amplificação da molécula de ADN – o InnoQuant HY e Innotyper 21, ambos desenvolvidos e patenteados pela empresa norte-americana InnoGenomics e à venda no mercado desde Setembro de 2016. O LPC adquiriu esses dois testes que lhe permitiram produzir resultados “bastante satisfatórios” em amostras de cabelos sem raiz provenientes de cenas de crime reais, o que até à data era bastante difícil.»</span></span></div>
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<span style="font-size: x-small;"><span style="font-family: Trebuchet MS, sans-serif;"><span style="background-color: #fefefe; color: #0a0a0a; text-align: start;"><b>Fonte:</b> </span></span><span style="color: #0a0a0a; font-family: Trebuchet MS, sans-serif;">https://www.publico.pt/2018/02/22/ciencia/noticia/ciencias-forenses-ja-e-possivel-obter-adn-de-um-cabelo-sem-raiz-1803993</span></span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-72891655085102066392018-02-19T08:10:00.002-08:002018-02-19T08:10:36.105-08:00Suporte Básico de Vida - Esquematização<div class="separator" style="clear: both; text-align: center;">
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><b>Suporte Básico de Vida </b></span><br />
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><br /></span>Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0tag:blogger.com,1999:blog-4853699496571365573.post-55147336630209304182018-02-19T07:49:00.000-08:002018-02-19T07:49:23.839-08:00Fazer Suporte Básico de Vida<div style="text-align: justify;">
<span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Na escola-sede, D. Martinho Vaz de Castelo Branco, ainda estão a decorrer as ações de formação em Suporte Básico de Vida (SBV), com os turmas de 9.º ano.</span></div>
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Ficam aqui algumas indicações fundamentais de SBV que poderão ajudar-te a salvar uma vida.</span></div>
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<h1 class="titleACSS padding8mobile" style="display: flex; font-family: Raleway; font-size: 22px; letter-spacing: -0.02em; line-height: 1; margin: 24px 0px 22px; padding: 0px;">
Suporte Básico de Vida</h1>
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<span style="color: rgba(0, 0, 0, 0.87);"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">A paragem cardiorrespiratória (PCR) é um acontecimento súbito, constituindo-se como uma das principais causas de morte em todo o mundo. O SBV aumenta substancialmente a probabilidade de sobrevivência da vítima quando iniciado nos primeiros minutos após a paragem cardíaca, e consiste essencialmente em duas ações: compressões torácicas e ventilações.</span></span></div>
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<span style="color: rgba(0, 0, 0, 0.87);"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><br /></span></span></div>
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<span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><span style="color: rgba(0, 0, 0, 0.87);">Por isso, após garantir as condições de segurança do local onde se encontra a vítima, verifique se esta está consciente abanando-lhe suavemente os ombros e chamando por ela. No caso de a vítima não responder, considere que está desmaiada (inconsciente) avaliando depois se respira, recorrendo à técnica VOS: </span><strong style="color: rgba(0, 0, 0, 0.87);">Ver</strong><span style="color: rgba(0, 0, 0, 0.87);"> se o tórax expande, </span><strong style="color: rgba(0, 0, 0, 0.87);">Ouvir</strong><span style="color: rgba(0, 0, 0, 0.87);"> a passagem do ar e </span><strong style="color: rgba(0, 0, 0, 0.87);">Sentir</strong><span style="color: rgba(0, 0, 0, 0.87);"> a respiração na face.</span></span></div>
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<span style="color: rgba(0, 0, 0, 0.87);"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><br /></span></span></div>
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<span style="color: rgba(0, 0, 0, 0.87); text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Caso a vítima não respire, ligue de imediato 112 (ou garanta que alguém o faz), recorrendo à alta voz do seu telemóvel, e se necessário abandonando a vítima.</span></span></div>
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<span style="color: rgba(0, 0, 0, 0.87); text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><br /></span></span></div>
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<span style="color: rgba(0, 0, 0, 0.87); text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Depois inicie o SBV até a vítima recuperar ou chegar ajuda diferenciada.</span></span></div>
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<strong style="color: rgba(0, 0, 0, 0.87); text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Como fazer Suporte Básico de Vida?</span></strong></div>
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<strong style="color: rgba(0, 0, 0, 0.87); text-align: start;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;"><br /></span></strong></div>
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<li style="text-align: justify;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Deite a vítima de costas no chão ou sobre uma superfície rígida.</span></li>
<li style="text-align: justify;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Coloque as suas mãos sobrepostas com os dedos entrelaçados no meio do peito da vítima.</span></li>
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<li style="text-align: justify;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Com os braços esticados e perpendiculares ao corpo da vítima, pressione o peito, fazendo com que este baixe visivelmente e alivie. Repita 30 vezes este movimento de compressão e descompressão do peito da vítima a um ritmo de 100 a 120 por minuto.</span></li>
<li style="text-align: justify;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Ao fim das 30 compressões efetue duas ventilações através da boca da vítima. Para isso encha os pulmões de ar e expire para a boca da vítima, tapando-lhe o nariz com os seus dedos e isolando com os seus lábios os da vítima, para que não exista fuga do ar. Embora a ventilação boca-a-boca seja relativamente segura, sem casos de infeção grave descritos, é recomendável a utilização de máscaras de reanimação. Nos casos em que não seja possível fazer ventilações, faça apenas as compressões.</span></li>
<li style="text-align: justify;"><span style="font-family: Trebuchet MS, sans-serif; font-size: large;">Após ventilar, retome as compressões e siga sempre a sequência de 30 compressões torácicas com 2 ventilações. Mantenha as manobras até à chegada de ajuda ou a vítima recuperar.</span></li>
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<span style="color: rgba(0, 0, 0, 0.870588235294118); font-family: Trebuchet MS, sans-serif; font-size: large;"><br /></span></div>
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<span style="color: rgba(0, 0, 0, 0.870588235294118); font-family: Trebuchet MS, sans-serif;">Fonte: <a href="http://www.inem.pt/2017/05/29/suporte-basico-de-vida/" target="_blank">INEM</a></span></div>
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Emanuel Barbeitoshttp://www.blogger.com/profile/14623382563210949306noreply@blogger.com0