3.121 AMICOR (25)

  3.121 - AMICOR (25)

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

Feliz!.. Numa marisqueria em Tavira (PT), 1998. (https://en.wikipedia.org/wiki/Tavira)

#Slideshow: 90 fotos de abertura Clicar em apresentação de slides

#GOOGLE 22/01/2023

Lunar New Year 2023Happy Lunar New Year! Today's annual Doodle celebrates the Lunar Calendar’s first day of the new year and features a rabbit and Lunar New Year symbols including peach blossoms, lanterns, a red envelope, and firecrackers.

Learn more

#Tecmundo

Foto de 10 terabytes da Via Láctea

25/01/2023 

Jennifer Egues

via nexperts

Um estudo do céu do hemisfério sul, realizado por astrônomos responsáveis pela Pesquisa de Plano de Câmera de Energia Escura (DECaPS2), realizou o mapeamento e a identificação de mais de 3 bilhões de corpos celestes. Os dados da pesquisa foram publicados no The Astrophysical Journal.

Enquanto alguns equipamentos astronômicos perscrutam os confins do universo, outros observam a nossa vizinhança e o nosso lar.

Imagem: DECaPS2/DOE/FNAL/DECam/CTIO/NOIRLab/NSF/AURA/E. Slawik/M. Zamani/D. de Martin

Em um mapeamento histórico, astrônomos conseguiram observar, mapear e identificar 3,32 bilhões de corpos celestes, na nossa Via Láctea./.../

#Our World in Data

We just published a redesign of our work on Democracy We just published a major redesign of our work on Democracy. Explore all our data and research in one place. More of our recent work Help us improve Our World in Data for you We’re hiring a Data Scientist! We just published a redesign of our work on Biodiversity Artificial intelligence is transforming our world — it is on all of us to make sure that it goes well The brief history of artificial intelligence: The world has changed fast – what might be next? The mission of Our World in Data is to make data and research on the world’s largest problems understandable and accessible.

#Our World in Data

Democracy by Bastian Herre and Max Roser

Democracy is broadly understood to mean ‘rule by the people’. 
In practice, it is often defined as people choosing their leaders in free and fair elections.
Other definitions go beyond this. For example, some of them see democracy as people having additional individual rights and being protected from the state.
Democracy gives citizens the right to influence important decisions over their own lives and allows them to hold their leaders accountable.
But it can have other benefits too: democratic countries seem better governed than autocracies, seem to grow faster, and foster more peaceful conduct within and between them.
On this page, you can find data, visualizations, and writing on how democracy has spread across countries, how it differs between them, and whether we are moving towards a more democratic world.

Download data on GitHub

RELATED TOPICS

• Human rights
• War and Peace
• 
  
  
  

#Scientific America

How Antidepressants Help Bacteria Resist Antibiotics

A laboratory study unravels ways antidepressants and other nonantibiotic drugs can contribute to drug resistance By Liam Drew, Nature on January 26, 2023

E. coli bacteria are more resistant to antibiotics after being exposed to many common antidepressants. Credit: Kateryna Kon/Science Photo Library/Getty Images

The emergence of disease-causing bacteria that are resistant to antibiotics is often attributed to the overuse of antibiotics in people and livestock. But researchers have homed in on another potential driver of resistance: antidepressants. By studying bacteria grown in the laboratory, a team has now tracked how antidepressants can trigger drug resistance./.../

#

NEUROSCIENCE | ALL TOPICS   The Cause of Depression Is Probably Not What You Think By JOANNA THOMPSON Depression has often been blamed on low levels of serotonin in the brain. That answer is insufficient, but alternatives are coming into view and changing our understanding of the disease. Read the article

MATHEMATICAL PHYSICS   Mathematicians Find an Infinity of Possible Black Hole Shapes By STEVE NADIS In three-dimensional space, the surface of a black hole must be a sphere. But a new result shows that in higher dimensions, an infinite number of configurations are possible. Read the article Related:  At Long Last, Mathematical Proof That Black Holes Are Stable By Steve Nadis (2022) QUANTUM PHYSICS   How Quantum Physicists ‘Flipped Time’ (and How They Didn’t) By CHARLIE WOOD Two teams have made photons act as if time were simultaneously flowing in two directions. The experiments demonstrate a way to potentially boost the performance of quantum devices. Read the blog Related:  Quantum Mischief Rewrites the Laws of Cause and Effect By Natalie Wolchover (2021) Q&A   The Computer Scientist Who Finds Life Lessons in Games By BEN BRUBAKER In Shang-Hua Teng’s work, theoretical and practical questions have long been intertwined. Now he’s turning his focus to the impractical. Read the interview Related:  The Computer Scientist Who Parlays Failures Into Breakthroughs By Mordechai Rorvig (2022) QUANTIZED ACADEMY   The Basic Algebra Behind Secret Codes and Space Communication By PATRICK HONNER Whether you’re passing secret notes in class or downloading images from a space probe, Reed-Solomon codes offer an ingenious way to embed information and correct for errors. Read the column Related:  How Mathematical Curves Enable Advanced Communication By Jordana Cepelewicz (2022) Around the Web I Saw the Sign Humans can correctly guess the meaning behind the gestures made by wild chimps and bonobos, reports Victoria Gill for BBC News. Researchers think that our ancestors used similar gestures to communicate before they developed language. Gestures are not only useful tools for communication. Mounting evidence suggests that they serve an important role in perception and cognition, too. Raleigh McElvery wrote about this for Quanta in 2019. Io's Ire  A recent eruption on Jupiter’s intensely volcanic moon Io emitted a mix of chemicals that startled observers, reports Oliver Whang for The New York Times. Studying it could help scientists better understand Io’s volcanoes and their interactions with Jupiter. Gas emitted by Io’s volcanoes can get captured by Jupiter’s magnetic fields and power the planet’s auroras. In 2021 Robin George Andrews reported for Quanta that these auroras are why Jupiter is unexpectedly warm.

#National Geographic

‘Microclots’ could help solve the long COVID puzzle

Scientists are starting to detect clots in long COVID patients’ smallest blood vessels—which might help explain the condition’s debilitating symptoms.

BYPRIYANKA RUNWALPUBLISHED JANUARY 26, 2023

For more than two years, scientists have been trying to understand why millions of people across the world are experiencing lingering symptoms despite recovering from their COVID-19 infection. They’ve proposed several hypotheses including the presence of microclots—tiny blood clots that can block capillaries and potentially affect blood and oxygen flow.

In a 2021 study, physiologist Etheresia Pretorius at the Stellenbosch University in South Africa and her colleagues were the first to suggest that microclots may be linked to this debilitating condition called long COVID. In a follow-up study, she and her colleagues showed that the SARS-CoV-2 spike protein triggers the formation of such clots, which the body’s natural clot-busting process doesn’t seem to break down easily.

This finding has led some scientists in the United States, with guidance from Pretorius, to test people with long COVID for microclots. Lisa McCorkell, co-founder of the long COVID-focused Patient-Led Research Collaborative, was thrilled when she heard the news last year.

Fluorescence microscopy images reveal microclots circulating in healthy blood (left) and a severe one in a long COVID patient (right). The COVID clots are more resistant to a natural clot-busting process called fibrinolysis and don’t break down easily.

MICROGRAPH BY CHANTELLE VENTER AND RESIA PRETORIUS

IN THE SPOTLIGHT

IMAGE BY NASA, ESA, CSA, M. ZAMANI (ESA/WEBB)

Finding ancient galaxies: NASA’s James Webb Space Telescope has only been operational for six months, but it’s been busy. Already it has broken the record for farthest galaxies ever seen. These new galaxies are only 300 to 400 million years old and present new mysteries of the early universe, Nat Geo reports. READ MORE

3.120 - AMICOR (25)

 3.120 - AMICOR (25)

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

Ossaka, JP. 2001

#OUR WORLD IN DATA

Latest posts

We just published a redesign of our work on Biodiversity
Artificial intelligence is transforming our world — it is on all of us to make sure that it goes well
The brief history of artificial intelligence: The world has changed fast – what might be next?
We just published a new topic page on Artificial Intelligence
We just published a redesign of our work on the Environmental Impacts of Food

#CARLOS MACHADO FEHLBERG+ (ZH)

Mais um de nossa turma da FAMED/URGS 1958 que se foi...

Médico por profissão, jornalista por paixão e vocação, ele foi uma presença importante por muito tempo na direção de redação de ZH. Deixou suas marcas de responsabilidade, dignidade e respeito pela profissão. Saudade do Fehlberg e de suas lições para tantos jovens que com ele aprenderam e deram seguimento ao seu trabalho na RBS - disse Jayme Sirotsky, presidente emérito do Grupo RBS.

#QUANTA MAGAZINE

Starfish Whisperer Develops a Physical Language of Life: Nikta Fakhri 

extending concepts from physics to describe biology and life.

#Science (recomendado pela AMICOR Maria Inês Reinert Azambuja)

Study links viral infections to Alzheimer’s, Parkinson’s—with many caveats Flu and other viruses are associated with six brain diseases, but aren’t proven culprits

• 19 JAN 2023
• 12:00 PM
• BYMEREDITH WADMAN 

RECOMMENDEDCLOSE

SAGE OTHER RESOURCESAPRIL 2004

ABAD Directly Links Aβ to Mitochondrial Toxicity in Alzheimer's Disease

REPORTSAPRIL 2004

ABAD Directly Links Aß to Mitochondrial Toxicity in Alzheimer's Disease

REVIEWSNOVEMBER 2006

A Century of Alzheimer's Disease

PERSPECTIVESJANUARY 1997

Alzheimer's Disease--Genotypes, Phenotype, and Treatments

#

ASTROPHYSICS | ALL TOPICS   Standard Model of Cosmology Survives JWST’s Surprising Finds By REBECCA BOYLE Reports that the James Webb Space Telescope has killed the reigning theoretical model of the cosmos turn out to have been exaggerated. But astronomers still have much to learn from distant galaxies glimpsed by the telescope. Read the article

GRAPH THEORY   Finally, a Fast Algorithm for Shortest Paths on Negative Graphs By BEN BRUBAKER Researchers can now find the shortest route through a network nearly as fast as theoretically possible, even when some steps can cancel out others. Read the article Related:  New Algorithm Breaks Speed Limit for Solving Linear Equations By Kevin Hartnett (2021) MICROBIOME   Mobile Genes From the Mother Shape the Baby’s Microbiome By YASEMIN SAPLAKOGLU Tiny genetic sequences in a mother’s bacteria seem to hop into the infant's bacteria, perhaps ensuring a healthy microbiome later in life. Read the blog Related:  The Gut Microbiome Helps Social Skills Develop in the Brain By Yasemin Saplakoglu (2022) COMBINATORICS   Mathematicians Roll Dice and Get Rock-Paper-Scissors By ERICA KLARREICH Mathematicians have uncovered a surprising wealth of rock-paper-scissors-like patterns in randomly chosen dice. Read the article Related:  How and Why Computers Roll Loaded Dice By Stephen Ornes (2020) QUANTA SCIENCE PODCAST   Record-Breaking Robot Highlights How Animals Excel at Jumping Podcast hosted by SUSAN VALOT; Story by YASEMIN SAPLAKOGLU Robots can surpass the limitations on how high and far animals can jump, but their success only underscores nature’s ingenuity in making the most of what’s available. Listen to the podcast Read the article Around the Web A Whale of a Tale Researchers have found four genes that enable whales to become gigantic, partly by protecting them from developing cancer in their extra tons of tissue, Will Dunham reports for Reuters. Elephants get similar protection from cancer by a different set of genes. In 2017 Viviane Callier wrote for Quanta about how the ancient remnants of genetic junk were repurposed for culling cancerous cells before they can grow. Magma in the Meditteranean Researchers just discovered a growing magma chamber beneath a submarine volcano near Santorini, Greece. Measurements suggest that it could cause a devastating eruption within the next 150 years, reports JoAnna Wendel for Live Science. Mapping the flow of magma underground is important for predicting future eruptions and understanding what drives them. In a 2021 story for Quanta, Robin George Andrews wrote about a massive mantle plume that was responsible for a vast portion of Earth’s volcanic activity.

#Scientific American

January 19, 2023

Vaccines An Old TB Vaccine Might Help Stave Off Diabetes, Cancer Alzheimer's, and More  The BCG vaccine might assist in preventing a range of major diseases By Viviane Callier

#Smithonian Magazine

A New Tool Could Help Detect Breast Cancer Earlier

Dotplot gives users real-time feedback and builds a personalized map of their chests

Margaret Osborne Daily Correspondent, January 13, 2023

#Nature Briefing

A decline in smoking rates has contributed to a decrease in cancer deaths in the United States. (solidcolours/Getty)

Cancer deaths down 33% since 1991 Cancer mortality in the United States has dropped by 33% since 1991, equivalent to around 3.8 million lives. A decline in smoking rates, increases in human papillomavirus vaccination and the success of new treatments such as immunotherapy and adjuvant chemotherapy are behind the trend, according to the American Cancer Society. It predicts that, in 2023, there will be an estimated 1.96 million new cancer cases in the United States — around 5,370 each day. CNN | 9 min read Reference: CA: A Cancer Journal for Clinicians paper (12 January)#Artigo de Vitor Pinto. Escritor. Analista internacional Índia,gigante submetido a Narendra Modi.  Rahul Gandhi, reunindo as energias restantes de seus 52 anos de idade,enfrentou durante três meses uma longa caminhada por 3.500 km, encerradano início de novembro último em Punjab ao norte, no sopé do Himalaia de ondese estende a Caxemira indiana. Foi uma vatra, o nome para peregrinação, feitaem nome da unidade da Índia e em busca da redenção política após umadécada de derrotas eleitorais do seu Partido do Congresso para o BarathiyaJanata Party – BJP – do 1º ministro Narendra Modi que dessa feita e pelaprimeira vez se calou. A épica empreitada aconteceu sob a marca da harmoniareligiosa e da recuperação da prosperidade perdida desde que o hindutva -sinônimo do nacionalismo radical hindu - se impôs especialmente durante ogoverno atual eleito com maioria absoluta em 2019 para um novo período decinco anos. Ao longo do caminho Rahul dedicou-se a conversar e a ouvir opovo que nas ruas, no campo e nas casas o recebeu./.../(LINK)