3.090 - AMICOR (25)
Caríssimos AMICOR, como sabem já fazem 25 anos que estou na rede, já andei fazendo várias mudanças e adaptações, mas cada vez mais me questiono se devo manter esta atividade e, no caso, o que e como me atualizar. Também foi minha proposta desde o início ter um instrumento para guardar o que me interessa, disponibilizando-o para meus amigos, ou a quem mais possa interessar...
Para encontrar com mais tranquilidade meu caminho daqui por diante, seria de muita valia se pudesse contar com a opinião, crítica e sugestões de quem tem me visitado, ainda mais porque não conto mais com o conselho de quem me ajudou durante setenta anos.
Muito obrigado, Aloyzio.
#Dra. Valderês Antonietta Robinson Achutti (*13/06/1931+15/06/2021)
Aproveitando a celebração do dia do Pai (19/06): Não lembro onde nem quando , mas tenho saudade do calorzinho dela...
(clicar em Apresentação de Slides)
Recomendado pela AMICOR Maria Inês Reinert Azambuja
#MEDSCAPE
#Nature briefing
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| La Niña contributed to flooding in eastern Australia earlier this year. (Peter Wallis/Getty) |
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A long-running La Niña climate event could persist into 2023. That would make it a ‘triple-dip’ La Nina, lasting three years in a row — which has happened only twice since 1950. So far, the event has contributed to flooding in eastern Australia and exacerbated droughts in the United States and East Africa. Scientists say such a long La Niña is probably just a random event, but some researchers predict that climate change could make La Niña-like conditions more likely in the future. Nature | 5 min read
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Troubling data show how the pandemic has exacted an unequal toll, pushing tens of millions into poverty and having the greatest effects on already-disadvantaged groups. Six stark graphics reveal how the pandemic has worsened existing inequalities and exposed others in terms of income, health, safety and more. Nature | 6 min read
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| In 2022, up to 677 million people could be living in extreme poverty — almost 100 million more than without the combined crises of the pandemic, inflation and the war in Ukraine. (Source: World Bank) |
A newly discovered bacterium, Thiomargarita magnifica, challenges the definition of a microorganism: its filament-like single cell is up to a centimetre long. T. magnifica achieves its unprecedented size by having unique cellular features: two membrane sacs. One is filled with its genetic material; the other, which is much larger, helps to keep its cellular contents pressed up against its outer cell wall so that essential molecules can diffuse in and out. Researchers have dubbed these sacs ‘pepins’ — inspired by the pips in fruit — and note that they blur the line between single-celled prokaryotes and the eukaryotes (the group that includes humans), which pack their DNA into a nucleus. Eagle-eyed Briefing readers will remember this spectacular organism from February, when researchers published these results in a preprint. Nature | 4 min read
Reference: Science paper
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| Thiomargarita magnifica filaments next to a US 10-cent coin. (Tomas Tyml/Lawrence Berkeley National Laboratory) |
#ASRM
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By Exploring Virtual Worlds, AI Learns in New WaysBy ALLISON WHITTEN Intelligent beings learn by interacting with the world. Artificial intelligence researchers have adopted a similar strategy to teach their virtual agents new skills.
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 | Mathematical Connect-the-Dots Reveals How Structure EmergesBy LEILA SLOMAN A new proof identifies precisely how large a mathematical graph must be before it contains a regular substructure.
Read the blog
Related:
Surfaces Beyond Imagination Are
Discovered After Decades-Long Search
by Leila Sloman |
 | This Animal’s Behavior Is Mechanically ProgrammedPodcast hosted by SUSAN VALOT;
Story by JORDANA CEPELEWICZ Biomechanical interactions, rather than neurons, control the movements of one of the simplest animals. The discovery offers a glimpse into how animal behavior worked before neurons evolved.
Listen to the podcast
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When Viruses Get Worse
Viruses often get milder over time, but that’s far from always the case. For The New York Times, Carl Zimmer considers the deadliest vertebrate virus, myxoma, which in the 1990s evolved to become more virulent among the rabbit populations it ravaged. The uncertainty of virus evolution is relevant to the COVID-19 pandemic. Virologists are trying to better understand this by mapping out the “fitness landscape” of all possible mutations of SARS-CoV-2, Carrie Arnold reported for Quanta in January.
Physicists Spot Strong Signs
Physicists think they have seen the first convincing evidence for the “tetraneutron,” a short-lived particle composed of four neutrons, Emily Conover reports for Science News. Studying this exotic particle could help us learn more about nuclear forces. The strong force binds neutrons together but also keeps individual neutrons together — until the weak force eventually wins and the neutron decays. In 2018 Natalie Wolchover wrote for Quanta about what we can learn from studying neutron lifetimes. |
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#The Marginalian - Maria Popova
The dandelion and the meaning of life, 20 reasons for being, poet Elizabeth Alexander on how literature widens the portal of the possible
There is a myth we live with, the myth of finding the meaning of life — as if meaning were an undiscovered law of physics. But unlike the laws of physics — which predate us and will postdate us and made us — meaning only exists in this brief interlude of consciousness between chaos and chaos, the interlude we call life. When you die — when these organized atoms that shimmer with fascination and feeling — disband into disorder to become unfeeling stardust once more, everything that filled your particular mind and its rosary of days with meaning will be gone too. From its particular vantage point, there will be no more meaning, for the point itself will have dissolved — there will only be other humans left, making meaning of their own lives, including any meaning they might make of the residue of yours./.../
#WHO
Mental health is critically important to everyone, everywhere. All over the world, mental health needs are high but responses are insufficient and inadequate. This “World Mental Health Report” is designed to inspire and inform better mental health for all. It highlights why and where change is needed and how it can be achieved.
#AEON Magazine
In the jungle of Suriname, Maria Sibylla Merian discovered insect metamorphosisBorrowing from the elegant visual style of the German-born Swiss naturalist, entomologist and botanical artist Maria Sibylla Merian (1647-1717), this animation celebrates her many notable contributions to the natural sciences in an age when such work was widely considered the domain of men. A dedicated observer of plants and insects in particular, two of her many achievements include helping to dispel the once widely held belief that insects spontaneously emerge from dust, mud or rotten meat, and observing metamorphosis in rich detail. And 300 years after her death, her seminal book, The Metamorphosis of the Insects of Suriname (1705), which depicts insects and plants in the jungles of South America, is still considered one of the most beautiful and groundbreaking entomology books ever assembled, with editions of the pioneering work being reprinted as recently as 2010. Video by The Royal Society and BBC Ideas Animation: Studio Panda 30 May 2022
#JAMA
US Preventive Services Task Force
Evidence Report
June 21, 2022
JAMA. 2022;327(23):2334-2347. doi:10.1001/jama.2021.15650
Conclusions and Relevance Vitamin and mineral supplementation was associated with little or no benefit in preventing cancer, cardiovascular disease, and death, with the exception of a small benefit for cancer incidence with multivitamin use. Beta carotene was associated with an increased risk of lung cancer and other harmful outcomes in persons at high risk of lung cancer././
#IHME
This dataset contains retrospective estimates for healthcare spending attributable to dementia for 195 countries from 2000 to 2019 and prospective spending estimates from 2020 to 2050 under multiple scenarios. Intermediate and final estimates are provided. Intermediate estimates include community based care rate (CBC), nursing home based care rate (NHBC), community based care unit cost, and nursing home based care unit cost. Final estimates are attributable dementia spending. All spending is reported in 2019 United States dollars. Future estimates report the same model outputs as those reported in the retrospective model but include both reference and alternative scenarios based on accelerated care setting rates and units costs.
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| | In this whitepaper, learn from Dr. Sanjay Garg, Senior Expert Scientist, Sanofi Pasteur about the direction of vaccine development, potential hurdles researchers and manufacturers might face, and how lessons learnt from COVID-19 will shape the future of vaccine development. |
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