3.066 AMICOR (24)

AMICOR 3.066 

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

Nos Jardins de Monet (FR) na virada do século.

#Le Temps

Le rire de Molière sur le gril en Suisse romande Alexandre Demidoff Les universités de Lausanne, Fribourg et Genève proposent dès ce samedi un bouquet d’événements autour de l’humour moliéresque. Un feu d’artifice à découvrir sur les planches, en ligne et à la radio Jean-Baptiste Poquelin, alias Molière, fête ses 400 ans ce 15 janvier 2022. Le Temps se joint aux célébrations, et brosse le portrait de l’artiste en courtisan doué et entrepreneur de théâtre… Avant Molière l’universel, le très Parisien Jean-Baptiste Poquelin Notre interview de Claude Bourqui, spécialiste de l’auteur: «Molière était une star avant l’heure, l’ancêtre de nos humoristes» Récrire Molière en français moderne, une question qui n’est plus taboue/.../ #Maria Popova What Happens When We Die “How can a creature who will certainly die have an understanding of things that will exist forever?” BY MARIA POPOVA #Medium.com #ZH Digital - UFSM Nossos cumprimentos ao recém empossado Magnífico Reitor da Universidade Federal de SM (minha terra natal). O avô mencionado por ele -Vitor Francisco Schuch - foi meu amigo no início da década de cinquenta, pouco antes de eu deixa a cidade. Tenho também saudade, e gratas recordações do Chefe Vitor - criador do Clã de Pioneiros Ibitory-Retan  (nome indígena do local onde se desenvolveu a cidade) - Hoje, um neto meu - Pedro Martin Achutti Olivé - tem como Reitor, um neto do Chefe Vitor. Aproveito para agradecer mais uma vez, na pessoa do neto, as belas aventuras que tive com seu avô, e ao mesmo tempo enviar meus votos de sucesso. #Sciencenews history of math In the ancient Indian text called the Bakhshali Manuscript, a black dot (as seen History of Mathematics’ explores the origins of arithmetic, algebra, geometry and more In the ancient Indian text called the Bakhshali Manuscript, a black dot (as seen in the right half of the bottom row) represents zero. NATIONAL GEOGRAPHIC/WIKIMEDIA COMMONS

Marina Koren, The Atlantic

For such a familiar celestial body, the sun is still very mysterious— but we’re getting closer to it than ever before. #NASA We Booped the Sun Marina Koren, The Atlantic #Medium-Sunny Labh 5 Best Science Biographies of All Time Books that portray the most brilliant minds in the most elegant ways Labh· 7 min read # The one thing you need to know about molecular evolution The mathematical proof for natural selection is written in DNA in the most striking and beautiful fashion… KamounLab· 7 min read #Starts With A Bang! Ethan Siegel  How, exactly, does planet Earth move through the Universe? The Solar System isn’t a vortex, but rather the sum of all our great cosmic motions. Here’s how we move… #Quanta Magazine QUANTUM GRAVITY | ALL TOPICS   In a Numerical Coincidence,  Some See Evidence for String Theory By NATALIE WOLCHOVER In a quest to map out a quantum theory of gravity, researchers have used logical rules to calculate how much Einstein’s theory must change. The result matches string theory perfectly. Read the article NEUROSCIENCE   Neural Noise Shows the Uncertainty of Our Memories By VERONIQUE GREENWOOD The electrical chatter of our working memories reflects our uncertainty about their contents. Read the article Related:  Brain’s ‘Background Noise’ May Hold Clues to Persistent Mysteries by Elizabeth Landau (2021) ASTROPHYSICS   Any Single Galaxy Reveals the Composition of an Entire Universe By CHARLIE WOOD A digital discovery raises the odds that the real cosmos may be hiding a link between the large and the small. Read the blog Related:  How Artificial Intelligence Is Changing Science by Dan Falk (2019) COMPUTATIONAL COMPLEXITY   Computer Scientists Eliminate Pesky Quantum Computations By NICK THIEME For years, intermediate measurements made it hard to quantify the complexity of quantum algorithms. New work establishes that those measurements aren’t necessary after all. Read the blog QUANTA SCIENCE PODCAST   Researchers Defeat Randomness to Create Ideal Code Podcast hosted by SUSAN VALOT; Story by MORDECHAI RORVIG By constructing a multidimensional graph, researchers have finally created a method for coding a transmission that can immediately identify any corruption. Listen to the podcast Read the article Around the Web No Knowledge, No Problems Computer scientist Amit Sahai explains “zero-knowledge proofs” — a way to prove something without revealing any additional information — at five levels of difficulty for WIRED. Sahai has used this concept to hide the inner workings of computer programs from would-be hackers. In a 2014 article for Quanta, Erica Klarreich wrote about Sahai’s pioneering work in “program obfuscation.” Intentional Icarus The Parker probe recently entered the sun’s corona, giving us the closest-ever view of our star, Marina Koren writes for The Atlantic. Much about the sun remains a mystery despite its proximity to us. In 2019 Natalie Wolchover wrote for Quanta about scientists’ attempts to understand the gamma rays emanating from our star. #NATURE Drug-resistant infections kills 1.2 million More than 1.2 million people died in 2019 of infections from antibiotic-resistant bacteria, according to a global study of 204 countries. The burden was highest in sub-Saharan Africa and South Asia, with children under 5 the most at risk. Another five million people died in 2019 from diseases in which antibiotic-resistant bacteria had a role. For comparison, researchers estimate that, in the same year, AIDS caused 860,000 deaths and malaria caused 640,000. BBC | 3 min read Reference: The Lancet paper Features & opinion Ageing — the mysteries of human longevity In this UN Decade of Healthy Ageing (2021–30), Nature explores a fact of life that continues to fascinate. Does the human lifespan have a limit? Super-centenarians offer clues as demographers and scientists lock horns over one of the world’s oldest research questions. How the COVID-19 pandemic might age us Infectious disease, loneliness and stress can affect cellular ageing, making us less healthy and shortening lifespans. Life-long lessons from India and Japan Family ties in the world’s second-most-populous country are loosening as more Indians move for work. Farther east, one in three Japanese people will be over 65 by 2036. What can these countries teach us? The biological clean-ups that could combat age-related disease Could targeting autophagy — often likened to a cellular trash management system — extend life? Some researchers are unconvinced. Turning back time with epigenetic clocks If biological ageing can be slowed, halted or rewound, are machine-learning algorithms the best way to measure it? Some experts are unconvinced. Nature Outlook | Full collection This Nature Outlook is an editorially independent supplement produced with the financial support of Tokushima University. Rejuvenation by controlled reprogramming is the latest gambit in anti-aging Startups are betting that partial reprogramming with Yamanaka factors may lead to age reversal, but hurdles remain. Michael Eisenstein The Yamanaka factors that can reprogram cells into their embryonic-like state are at the heart of longevity research.Credit: Brain light / Alamy Stock Photo On 19 January, co-founders Rick Klausner and Hans Bishop publicly launched an aging research initiative called Altos Labs, with $3 billion in initial financing from backers including tech investor Yuri Milner and Amazon founder Jeff Bezos. This is the latest in a recent surge of investment in ventures seeking to build anti-aging interventions on the back of basic research into epigenetic reprogramming. In December, cryptocurrency company Coinbase’s cofounder Brian Armstrong and venture capitalist Blake Byers founded NewLimit, an aging-focused biotech backed by an initial $105 million investment, with the University of California, San Francisco’s Alex Marson and Stanford’s Mark Davis as advisors. The discovery of the ‘Yamanaka factors’ — four transcription factors (Oct3/4, Sox2, c-Myc and Klf4) that can reprogram a differentiated somatic cell into a pluripotent embryonic-like state — earned Kyoto University researcher Shinya Yamanaka a share of the Nobel prize in 2012. The finding, described in 2006, transformed stem cell research by providing a new source of embryonic stem cell (ESC)-like cells, induced pluripotent stem cells (iPSCs), that do not require human embryos for their derivation. But in recent years, Yamanaka factors have also become the focus for another burgeoning area: aging research. #NY Review of Books Peter Brown The Other Rome Four new books challenge the Eurocentric perspective that has left the eastern half of the empire on the margins of standard historical narratives. #Live Science Astronomers propose building a neutrino detector out of the Pacific Ocean (Nicolle R. Fuller/NSF/IceCube) Neutrinos are one of the most elusive particles in the cosmos, second only to ultra-mysterious dark matter. They are made in considerable quantity — they participate in the weak nuclear force and they're responsible for nuclear fusion and decay. So any time something nuclear is happening, neutrinos are involved. For example, the sun's core is a giant nuclear fusion reaction, so naturally, it's producing quite a few neutrinos. If you hold your thumb up to the sun, approximately 60 billion neutrinos will pass through your thumbnail every second, according to past studies.  Full Story: Live Science (1/21)  Bizarre knotted DNA structures linked to cancer in mice (ALFRED PASIEKA/SCIENCE PHOTO LIBRARY via Getty Images) Oddly tangled and looped DNA structures could be linked to cancer, according to a new study in mice. DNA typically looks like a twisted ladder. But the loss of key enzymes in the body causes the genetic molecule to become tangled up in bizarre loops and knots, and at least in mice, these odd DNA structures may drive the development of cancer, The Scientist reported.  Full Story: Live Science (1/20)