3.113 AMICOR (25)

 3.113 - AMICOR (25)

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

Ciudad de Mexico 1994 no museu antropológico, durante celebração dos 50 anos do

Instituto de Cardiologia Professor Ignácio Chavez

#Our World in Data

We just published a redesign of our work on the Environmental Impacts of Food We’ve just published a major redesign of our work on the Environmental Impacts of Food. Explore all of our data and research in one place. Latest posts Data update: We’ve just updated all of our global CO₂ emissions data We just published a data explorer on Global Health From $1.90 to $2.15 a day: the updated International Poverty Line How many people die from the flu? Introducing our updated work on Poverty: a new design for our content

The mission of Our World in Data is to make data and research on the world’s largest problems understandable and accessible.

#The British Library

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Events to brighten up the colder evenings Step into the festive season with us as our autumn programme of events continues. Explore exciting acquisitions, hear from screenwriting stars and get a rare chance to see a classic on the big screen. Plus, get your January calendar filled as our immersive and exciting Alexander the Great events continue into the new year. At the Library Online At the Library and online

#Nature

An illustration of the quantum experiment to study traversable wormholes. (inqnet/A. Mueller (Caltech))

Wormhole inside a quantum computer Physicists have sent quantum information through a simulated wormhole in a ‘toy’ universe that exists only inside a quantum computer. The tunnel is analogous to passages through space-time that might connect the centres of black holes in the real Universe. “The surprise is not that the message made it across in some form, but that it made it across unscrambled,” write the authors of an analysis published alongside the study in Nature. Some scientists think that such experiments could help to unite the theories of quantum mechanics and gravity in the simplified realm of toy universes, leading ultimately to the answer to one of the biggest problems in physics: a real-world quantum theory of gravity. Nature | 5 min read Go deeper with an expert analysis by theoretical physicists Adam Brown and Leonard Susskind in the Nature News & Views article (7 min read, Nature paywall) Reference: Nature paper

AIs win at Stratego and Diplomacy Two games that have been long considered extremely difficult for artificial intelligence to master have fallen to machines. DeepMind’s artificial intelligence (AI) system DeepNash has used a combination of reinforcement learning and a deep neural network to master Stratego, a game that requires strategic thinking in the face of imperfect information. And a team at Meta AI has built Cicero, an AI that can negotiate and cooperate in the multi-player game Diplomacy. The achievements could pave the way for real-world applications. Nature | 5 min read References: Science paper 1 & paper 2

Men dominate Q&A sessions, even online Conferences suffer from male-dominated ‘question and manswer’ sessions at both in-person and virtual events, even if they have a good gender balance. Researchers observed a four-day online bioinformatics conference and found that ‘senior men’ (older than 35 years) asked, on average, 9.3 more questions than a junior woman, while senior women asked just 2.3 more questions than a junior man. Possible solutions are more time for question and answer sessions, giving the first query opportunity to a junior woman or taking a short break after the talk to allow the audience to formulate their ideas. Nature | 6 min read Reference: bioRxiv preprint

NEWS ROUND-UP Top stories from earlier in the week: This week, delegates from more than 150 countries met in Uruguay for negotiations on a historic agreement to end plastic pollution. Here are three problems that a global treaty could solve. (Nature | 6 min read) A 67-million-year-old beak bone has upended the evolutionary tree of life for birds by suggesting that the structure of most modern beaks evolved before a less-flexible version seen in just a few species, such as ostriches. (Nature | 4 min read) A rare, well-preserved ancient human skull found in central China could be a million-year-old Homo erectus. (Nature | 5 min read) The World Health Organization has introduced a new preferred term for the disease caused by the monkeypox virus: mpox. (STAT | 3 min read) Hawaii’s Mauna Loa volcano — the world's largest active volcano — is erupting for the first time in almost 40 years and its lava has disrupted data collection for the Keeling curve, a key record of atmospheric carbon dioxide. (New Scientist | 3 min read & The Washington Post | 4 min read)

QUESTION OF THE WEEK Yesterday, we read that the city of San Francisco, California, is considering allowing its police force to use robots to kill people. Proponents argue that deadly robots offer an option of last resort to protect officers and civilians. Critics say the technology could normalize remote killings by police and exacerbate racial injustices. What do you think — would you support the police in your area using deadly robots? Click to answer this poll. We’ll reveal the results next week.

Features & opinion

The Nobel laureate spied on by the FBI Microbiologist Salvador Luria escaped fascist Italy for the United States, where his socialism, support for desegregation and workers’ rights, and opposition to biological and nuclear weapons caught the attention of the FBI. The agency monitored his every move, even after he won the Nobel prize for his work bacteriophages — viruses that invade and often kill bacteria. Science historian Rena Selya’s well-researched book distils the phage pioneer’s turbulent life, writes reviewer and science journalist Alison Abbott — although it regrettably glosses over his thrilling escape across France by bicycle. Nature | 6 min read

#Quanta Magazine

QUANTUM GRAVITY | ALL TOPICS   Physicists Create a Holographic Wormhole Using a Quantum Computer Article by NATALIE WOLCHOVER; Video by EMILY BUDER The unprecedented experiment explores the possibility that space-time somehow emerges from quantum information, even as the work’s interpretation remains disputed. Read the article | Watch the video

NUMBER THEORY   Mathematical Trio Advances Centuries-Old Number Theory Problem By ERICA KLARREICH The work — the first-ever limit on how many whole numbers can be written as the sum of two cubed fractions — ends “a recurring embarrassment for number theorists.” Read the article Related:  A Numerical Mystery From the 19th Century Finally Gets Solved By Leila Sloman PARTICLE PHYSICS   Computer Program for Particle Physics at Risk of Obsolescence By MATT VON HIPPEL Maintenance of the software that’s used for the hardest physics calculations rests almost entirely with a retiree. The situation reveals the problematic incentives of academia. Read the blog Related:  The Algorithm That Lets Particle Physicists Count Higher Than Two By Charlie Wood (2021) NEUROSCIENCE   Brains Make Quick Stops With Calculus By KEVIN HARTNETT To hone its control over precise maneuvers, the brain uses comparisons between control signals, not the signals themselves. Read the blog Related:  Brain Chemical Helps Signal to Neurons When to Start a Movement By Allison Whitten INSIGHTS PUZZLE   The Math Behind Wordle Guesses By PRADEEP MUTALIK Wordle is a word game. But you can use math to optimize your chances of winning (without cheating). Read the puzzle solution Related:  How to Win at Wordle (Without Cheating) By Pradeep Mutalik Around the Web A Diplomatic Breakthrough Meta claims that its AI, Cicero, can beat humans at a strategy game called Diplomacy, reports Benj Edwards for Ars Technica. Diplomacy is closer to real-world situations than chess or Go: Players take turns simultaneously and often cooperate with one another. In 2018 Joshua Sokol wrote for Quanta about the difficulties in applying AI’s impressive game-playing capabilities to the real world. Someone Caught the Leadership Bug The “mind-controlling” parasite Toxoplasma gondii can seemingly change the behavior of wolves to make them more effective pack leaders, writes Emma Marris for Nature. Parasites are known to alter the behavior of their hosts, often in harmful, reckless ways. But as Elizabeth Svoboda wrote for Quanta in 2017, some parasites can also encourage altruism.

#Hospital Moinhos de Vento 95 anos, Jubilado

(23/11/2022) Cumprimentando e agradecendo à Direção do HMV, colegas e demais funcionários que conosco formam uma grande família, lembrei-me também de tantos colegas que não estão mais conosco, mas que fizeram parte dessa história, e contribuíram para que ela tivesse um curso tão feliz. Não posso deixar de chamar e compartilhar com tantos ausentes, entre os quais encontro a Dra. Valderês Antonietta Robinson Achutti, minha saudosa esposa, também credenciada, e com quem repartia sempre as responsabilidades de minha atividade profissional. Aliás, conforme já tive oportunidade de contar muitas vezes, se não fosse ela, eu nem seria médico, pois em 1951, quando ela apareceu em Santa Maria - e na minha vida -, eu estava me preparando para o vestibular de engenharia, e mudei de rumo quando ela me disse que desde o terceiro ano do curso ginasial havia decidido ser médica, e queria ser dona de um hospital. Ficamos setenta anos juntos, e ela também ficou “dona” do Hospital Moinhos de Vento, assim como eu...

#AEON Magazine

What did the Rosetta Stone’s inscription actually communicate?

Video by the British Museum 29 November 2022

There’s a good chance you know a fact or two about the artefact called the Rosetta Stone – namely that, because it was inscribed with a single message written in three different scripts, its discovery allowed archeologists to decode ancient Egyptian hieroglyphs. Or you might have heard that the new Grand Egyptian Museum has been calling for the artefact to be returned to its homeland. However, you may not know some of the most basics facts about the object. For instance, what was its purpose, and what did it actually say? In this video, Ilona Regulski, curator of Egyptian written culture at the British Museum in London, walks viewers through the stone and its ‘decree’, issued during the Ptolemaic dynasty in 196 BCE. In doing so, she reveals how this ancient stele, first unearthed in 1799, was just the first of many copies that have been found throughout Egypt, and what its message can tell us about the transitional period in which it was written. The video supports the exhibition ‘Hieroglyphs: Unlocking Ancient Egypt’, which runs at the British Museum through to February 2023.

#Academia SR Medicina

#Nature Briefing

By blocking a cancer cell surface protein (Xkr8 — shown in green above), researchers prevented a lipid called phosphatidylserine (PS, shown in red) from rising to the cell surface. PS acts as an immunosuppressant, and so preventing it from getting to the surface allows the immune system to find and destroy cancer cells (post-destruction cancer cells shown in grey). Researchers achieved this in mice by developing a nanocarrier that transported two chemotherapy drugs, fluorouracil and oxoplatin, to the tumour. The drugs blocked the surface proteins, and the tumours shrank. “Targeting Xkr8 in combination with chemotherapy may represent a novel strategy for the treatment of various types of cancers,” write the researchers. Reference: Nature Nanotechnology paper (24 November) (Chen, Y., Huang, Y., Li, Q. et al./Nat. Nanotechnol.) Why leukaemia and autoimmunity coincide

Blood cells from chronic lymphocytic leukaemia. (Steve Gschmeissner/Science Photo Library)

People with leukaemia often have autoimmune diseases such as rheumatoid arthritis because a mutation causes killer T-cells to go ‘rogue’ and start attacking the body’s own healthy cells. The mutation in the STAT3 gene present in some leukaemia cells seems to be the cause, a study in mice suggests. Reference: Immunity paper (29 November)

#Facebook

Theory Of Everything 30 de novembro às 13:54 

This week in 1915, Albert Einstein completes the general theory of relativity, giving us one of the most beautiful equations ever conceived; Rᵤᵥ - ½gᵤᵥR = 8πG/c⁴•Tᵤᵥ Where;

Rᵤᵥ - ½gᵤᵥR - Describes the curvature of spacetime.

8πG/c⁴•Tᵤᵥ - Describes the matter and energy in spacetime.