Human Ancestors
Mystery ancestor mated with ancient humans. And its 'nested' DNA was just found. By Stephanie Pappas - Live Science Contributor 2 days ago - - - - - - Comments (3) [image: Homo erectus skull.] An unidentified ancestor that interbred with humans may have been Homo erectus (skull shown here). (Image: © Shutterstock) Today's humans carry the genes of an ancient, unknown ancestor, left there by hominin species intermingling perhaps a million years ago. The ancestor may have been *Homo erectus*, but no one knows for sure — the genome of that extinct spec... mais »
Quantum particles
Physicists watch quantum particles tunnel through solid barriers. Here's what they found. By Diane Lincoln - Live Science Contributor 7 hours ago Comments (4) [image: Abstract image of quantum tunneling or space-time wormholes.] (Image: © Shutterstock) The quantum world is a pretty wild one, where the seemingly impossible happens all the time: Teensy objects separated by miles are tied to one another, and particles can even be in two places at once. But one of the most perplexing quantum superpowers is the movement of particles through seemingly impenetrable barriers. Now, a team of ph... mais »
Dentist and Pandemic
Read This Before You Go to the Dentist Dental practices are high-risk during the pandemic. Keren Landman, MD, tells us what to know before making an appointment. Take note
5th dimension
[image: Image for post]A 5th dimension may explain quantum theory We know that the universe has four dimensions, but why only four? Why not five? Tim Andersen, Ph.D. in The Infinite Universe[image: Member only content]8 min read
Big Tobacco’s Big Tech’s Future
What Big Tech Has in Common With Big Tobacco [image: Damon Beres] Damon Beres ·6 days ago In the latest issue of Pattern Matching, *OneZero*’s weekly newsletter, our senior writer Will Oremus digs in on the week’s historic antitrust hearing and puts it in vital context. Read it! —*Damon Beres, editor in chief,* OneZero What Big Tobacco’s Fall Tells Us About Big Tech’s Future onezero.medium.com 15
Dementia
We’ve Known How to Combat Dementia For Years — We’re Just Not Listening We’re still waiting for that shiny pill to cure us. What if we never find it? Kylie Fuller in ILLUMINATION[image: Member only content]5 min read
Rheumatic |Heart Disease
Rheumatic Heart Disease Re-examining What We Thought We Knew Andrea Beaton Cincinnati - 2018 Start course (Please note, you will need to log-in to Heart University to access the materials.) On behalf of the Heart University's team of Editors and Content Developers, we thank you for your dedication to continued education. We would also value any feedback, as this continues to be a work in progress. We appreciate those who have reached out to us and have become involved, and would continue to welcome any exceptional academic providers interested in joining our global team’s effort in... mais »
Patrimônio Cultural
Seguimos por aqui com a nossa missão de transmitir o conhecimento por meio da história, da educação, e da cultura, preservando e contando histórias 365 dias por ano. E nesse mês de uma maneira muito especial, pois 17 de agosto é o Dia Estadual do Patrimônio Cultural. Para comemorar, preparamos uma semana repleta de conteúdos históricos dominando as nossas redes sociais. Quando um momento histórico como esse que estamos vivendo bate na nossa porta, sabemos que podemos iluminar partes do passado para compreender nosso presente.
Common Colds and COVID-19
Common colds train the immune system to recognize COVID-19 By Rachael Rettner - Senior Writer 3 hours ago This existing immune system "memory" may explain why some people have milder COVID-19 infections. [image: An illustration of a T cell.] (Image: © Shutterstock) Previous infections with common cold viruses can train the immune system to recognize SARS-CoV-2, the virus that causes COVID-19, according to a new study. The study, published Aug. 4 in the journal *Science*, found that immune cells known as T cells that recognize common cold *coronaviruses* also recognize specific sites on... mais »
Les barbiers, des chirurgiens...
Les barbiers, des chirurgiens au poil[image: Ajouter l'article à vos favoris][image: Retirer l'article de vos favoris] RETOUR VERS LA SUTURE Bien avant que ne soient réunies médecine et chirurgie, les opérations étaient pratiquées dans les échoppes des barbiers. Point d’anesthésie, mais des acolytes solides et des sangles serrées pour maintenir les patients en place. Et ça fonctionnait plutôt bien Avant le XIXe siècle, la médecine telle qu’on la connaît aujourd’hui était pratiquée par un aréopage d’herboristes, rebouteux et autres guérisseurs, dont les barbiers faisaient également par... mais »
Human sperm swim
[image: A 3D animation of a sperm moving in a corkscrew motion] Human sperm swim faster by flapping their tails on just one side and rotating around. Researchers used a high-speed 3D camera to capture the gamete’s 20–30 swimming strokes per second. What looks like boring side-to-side wiggling when observed in a dish is actually more of a precessing corkscrew motion. (Science | 2 min read) Reference: *ScienceAdvances* paper (Polymaths-lab.com)
Jio
What Is Jio, and Why Are Tech’s Biggest Players Suddenly Obsessed With It? Google, Facebook, and Microsoft all want a slice of this tech pie [image: Sarvesh Mathi] Sarvesh Mathi 7 hours ago·10 min read [image: Image for post] [image: Image for post] People on bicycle passes by a Jio store in Kolkata, India, 13 July, 2020. Photo: NurPhoto/Getty Images Jio is a household name in India, and it’s finally getting some attention in the rest of the world. The young tech company is not just weathering the Covid-19 storm, but thriving in it. In the last four months, the company has raised over ... mais »
Universe end
[image: Various planets and stars in space.]How the Universe Will End, According to a Renowned Astrophysicist Cosmologist Katie Mack explains the leading theories — from heat death to the Big Crunch — on how the universe will cease to exist Katie Mack[image: Member only content]9 min read
SUSinho
Mais vídeos5. Vigilância à Saúde: Epidemiológica, Sanitária, Ambiental e Saúde do TrabalhadorM Por gentileza, atualizar o site do Saúde Urbana. Criaremos uma “Galeria de Imagens” para o SUSinho. [image: Programa de Extensão em Saúde Urbana, Ambiente e Desigualdades]
Irmãos Maristas
Faço parte dessa história. Todo meu curso primário e secundário 1942-52 no Gymnásio - depois Colégio Santa Maria Pretendo aproveitar a deixa e colocar aqui mais alguma fotografias da minha época. Pretendo
ASRM 18/08/2020 18 hs.
*ACADEMIA SUL-RIO-GRANDENSE DE MEDICINA* * CONVITE -ENCONTRO LITERATURA & MEDICINA* Convidamos os Senhores Acadêmicos e Novos Talentos a participarem do nosso próximo Encontro Literário Virtual. *Data: 18 de agosto - terça-feira Horário: 18:00 – 19:00 Horas* O Encontro Literário Virtual será pelo aplicativo ZOOM (em breve enviaremos o ID de acesso) *COLÓQUIO:* *"As Viroses Respiratórias Pandêmicas e a Atualidade"* *Homenagem à Dra. Jussara Pereira do Nascimento (RJ, 1949 - 2007)* Palestrantes: 1*) ACADÊMICO JOSÉ LUÍS REIS ROSATI, ACADEMIA DE MEDICINA DO ESTADO ... mais »
Dogs sixth seense
Dogs may sense Earth's magnetic field and use it like a compass By Diane Lincoln - Live Science Contributor 5 hours ago Comments (0) [image: A hunting dog pointing a pheasant.] (Image: © Shutterstock) Hunting *dogs* use more than their noses to find their way back to their owners hundreds or even thousands of feet away, researchers have found. Turns out, these four-legged navigators may sense Earth's *magnetic field* and use it as a compass, scientists are now reporting. This ability, called magnetoreception, is common in many animals, including some whale species, dolphins and sea t... mais »
Entropy
The Arrow of Time: We may be able to remember the future [image: Tim Andersen, Ph.D.] Tim Andersen, Ph.D. Follow Jul 29 · 8 min read [image: Image for post] [image: Image for post] Photo by Sabri Tuzcu on Unsplash I put the water in a mug and place the mug in the microwave. It takes 2 minutes on high to bring it to a proper boil. The microwave beeps and I drop the tea bag in, Earl Grey of course, listening for the sound of bubbling as the tea bag creates additional nucleation sites within the water. The tea piping hot, I pull it out and set it on the counter to steep. Suppose I play ... mais »
Aureliano de Figueiredo Pinto
01 DE AGOSTO DE 2020 ALMANAQUE GAÚCHO Aureliano de Figueiredo Pinto, 122 anos Se vivo fosse, Aureliano de Figueiredo Pinto completaria 122 anos neste 1º de agosto. Entretanto, o escritor, poeta e médico, nascido em 1898 em Tupanciretã, viveu somente metade deste ciclo. Ao morrer, em Santiago, na região central do Estado, tinha 61 anos, coincidentemente o mesmo período de tempo contado desde sua morte em 22 de fevereiro de 1959 até hoje. A produção literária do clínico geral correu o risco de sobreviver só em manuscritos caseiros . O destino, porém, se impôs com a força devastadora ... mais »
Flu and COVID
[image: What Happens When Flu Meets Covid-19?] What Happens When Flu Meets Covid-19? Debora MacKenzie, The Guardian How seasonal viruses interact with the coronavirus is unknown—it may lessen or sharpen the pandemic—so flu vaccinations are vital. [image: 3 Lessons From How Schools Responded to the 1918 Pandemic Worth Heeding Today] 3 Lessons From How Schools Responded to the 1918 Pandemic Worth Heeding TodayMary Battenfeld, The ConversationSchool systems realized that they couldn’t deal with the pandemic on their own. Save to Pocket
end of century world population
Human population projected to shrink at end of century [image: Bryan Walsh] Bryan Walsh, author of Future [image: The global population] Global population projections to 2100. Credit: *The Lancet.* Fertility, mortality, migration, and population scenarios for 195 countries and territories from 2017 to 2100: a forecasting analysis for the Global Burden of Disease Study
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