3.115 AMICOR (25)

 

3.115 AMICOR (25) 

#Dra. Valderês Antonietta Robinson Achutti (*13/06/1931+15/06/2021)

No mesmo Sítio Primavera (Viamão): Uma flor, no meio da folhagem...

#IHMA

Cardiovascular disease remains leading cause of death worldwide   Central Asia and Eastern Europe were estimated to have the highest rates of cardiovascular disease mortality, according to a new report produced by IHME, the National Heart, Lung, and Blood Institute, and the Journal of the American College of Cardiology. The risk factors contributing the most to global cardiovascular deaths in 2021 were high systolic blood pressure and dietary risks, accounting for 10.8 million and 6.6 million cardiovascular deaths, respectively.   “Over 80% of cardiovascular disease is preventable. With this update, we are measuring some alarming global trends and reviewing the current interventions that can help countries make good, evidence-based choices for their health systems,” said Dr. Gregory A. Roth, IHME professor and the paper’s senior author.

Read the release

#NATURE

Why strep A is surging
(selecionado pela AMICOR Maria Inês Reinert Azambuja)

An unseasonal rise in group A Streptococcus (strep A) infections has killed 13 children in England and made many more ill. Strep A infections usually cause just a mild sore throat, but occasionally they can lead to scarlet fever and, rarely, to even more serious conditions, such as meningitis. Some researchers theorize that the off-season outbreaks are a result of past surges that spawned new strep strains, which happened before the pandemic. Public-health rules brought in to stop COVID-19 might have protected children from strep A, too. Now that kids are back in school, and fewer are immune to strep A, it’s surging again. A similar pattern of off-season strep A infections is being observed in other countries, too: in the Netherlands, physicians have been urged to treat suspected cases with antibiotics immediately.

Nature | 5 min read#N.Briefing

The place that defines a new Earth epoch Nine candidate sites are in the running to be the location for the ‘golden spike’ of the Anthropocene, a physical marker for a site that defines a geological epoch. The term Anthropocene informally refers to the current time interval, which is marked by pollution and other signs of human activity — but it isn’t a formal epoch yet. Each spot is being considered for how reliably its mud, ice or sediment preserves markers such as radioactive isotopes from nuclear-bomb tests, ash from fossil-fuel combustion or microplastics. If one is accepted within the next six months, it would end the 12,000-year-old Holocene and officially acknowledge that humans have profoundly changed the planet. Some scientists are opposed to defining an ongoing epoch simply by seeking out the lower boundary of undefined geological layers. Nature | 7 min read

#Nature’s 10 Ten people who helped shape science in 2022 A climate revolutionary, a monkeypox watchman and an abortion fact-finder are some of the fascinating people behind the year’s big research stories. One of them is Kyiv-based climate scientist Svitlana Krakovska, who became a campaigner both for climate action and for Ukraine. “This human-induced climate change and war against Ukraine have direct connections and the same roots: they are fossil fuels and humanity’s dependence on them,” she told the United Nations Intergovernmental Panel on Climate Change (IPCC) while missiles landed kilometres from her home. IPCC vice-chair Ko Barrett praises Krakovska’s decision to speak up: “We’re scientists, but we’re humans,” she says. “There’s nobody who stands where she stands who can tell the same story.” Nature | 30 min read

#NEWSLETTER da Academia SR MedicinaEDIÇÃO 5 SETEMBRO/OUTUBRO/NOVEMBRO/DEZEMBRO DE 2022MENSAGEM DO PRESIDENTEAo concluirmos mais um período desafiador e repleto de realizações no âmbito de nossa gestão, compartilho com confreiras e confrades os registros jornalísticos dos desfechos positivos em todas as áreas institucionais de nossa Academia, graças à participação de notáveis colegas da diretoria.#Biblioteca Pública de Porto Alegre

com minha irmã Dra. Maria Helena Cechella Achutti

Visita Guiada com o Professor Gilberto 
#Scientific America

Consciousness This Year's Most Thought-Provoking Brain Discoveries Neural circuits that label experiences as “good” or “bad” and the emotional meaninglessness of facial expressions are some standouts among 2022’s mind and brain breakthroughs By Gary Stix

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GEOMETRY | ALL TOPICS   ‘Nasty’ Geometry Breaks Decades-Old Tiling Conjecture By JORDANA CEPELEWICZ Mathematicians predicted that if they imposed enough restrictions on how a shape might tile space, they could force a periodic pattern to emerge. But they were wrong. Read the article

Q&A   She Turns Fluids Into ‘Black Holes’ and ‘Inflating Universes’ By THOMAS LEWTON By using fluids to model inaccessible realms of the cosmos, Silke Weinfurtner is “looking for a deeper truth beyond one system.” But what can such experiments teach us? Read the interview Related:  What Sonic Black Holes Say About Real Ones By Natalie Wolchover (2016) NEUROSCIENCE   How the Brain Distinguishes Memories From Perceptions By YASEMIN SAPLAKOGLU The neural representations of a perceived image and the memory of it are almost the same. New work shows how and why they are different. Read the blog Related:  New Map of Meaning in the Brain Changes Ideas About Memory By Jordana Cepelewicz QUANTIZED COLUMNS   What Does It Mean to Align AI With Human Values? By MELANIE MITCHELL Making sure our machines understand the intent behind our instructions is an important problem that requires understanding intelligence itself. Read the column Around the Web More Magma A new measurement of Yellowstone National Park’s underground magma reservoirs reveals that they hold more than expected. But this doesn’t mean Yellowstone is more likely to erupt, explains Robin George Andrews for The New York Times. “Hot spot tracks” like Yellowstone are thought to be caused by giant plumes that bring magma up from Earth’s mantle. In 2021 Andrews wrote for Quanta about how the plumes’ treelike structures are formed by complex dynamics in the mantle. Who Will Build the First True Quantum Computer?  The race for the first useful, “fault-tolerant” quantum computer is underway. For The New Yorker, Stephen Witt explains the premise and pitfalls of quantum computing, and describes the current state of the race. Quantum computing derives its capabilities from uniquely quantum properties like superposition and entanglement. In 2021 Scott Aaronson wrote for Quanta about why quantum computing is so hard to explain.

#Revista Planeta 
Cientistas identificam genes do sexto sentido 

Diferentes populações de corpos celulares de neurônios sensoriais em um gânglio da raiz dorsal (à direita) e seus axônios na medula espinhal (à esquerda): as células em verde detectam informações proprioceptivas, enquanto as células em vermelho detectam informações térmicas e táteis. Crédito: Stephan Dietrich, Zampieri Lab, Centro Max Delbrück

Visão, audição, olfato, paladar, tato: todos nós estamos familiarizados com os cinco sentidos que nos permitem experimentar o que nos rodeia. Igualmente importante, mas muito menos conhecido, é o sexto sentido: “Sua função é coletar informações dos músculos e articulações sobre nossos movimentos, nossa postura e nossa posição no espaço, e depois transmiti-las ao nosso sistema nervoso central”, disse o dr. Niccolò Zampieri, chefe do Laboratório de Desenvolvimento e Função de Circuitos Neurais no Centro de Medicina Molecular Max Delbrück em Berlim (Alemanha). “Esse sentido, conhecido como propriocepção, é o que permite que o sistema nervoso central envie os sinais certos através dos neurônios motores aos músculos para que possamos realizar um movimento específico.”

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