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Friday, October 28, 2022

3.108 AMICOR (25)

 3.108 - AMICOR (25) 

#Dra. Valderês Antonietta Robinson Achutti (*13/06/1931+15/06/2021
Em nosso jardim (19??). Ela gostava muito de rosas, principalmente cor de rosas...

#Scientific America

How the Ancient Viral DNA in Our Genome Affects Disease and Development
 

GENETICS

How the Ancient Viral DNA in Our Genome Affects Disease and Development

Human endogenous retroviruses make up 8 percent of the human genome. Researchers are studying how active they are

By Aidan Burn,The Conversation US
Why Elephants Don't Get Cancer
 

GENETICS

Why Elephants Don't Get Cancer

Elephants use 20 copies of a key cancer-fighting gene—and humans just have one

By Rachel Nuwer

#Academia SR Medicina (pena, mas não terei condições de participar)


#Nature Microgiology

#Nature Briefing

#

My Bookmarks

GENOMICS | ALL TOPICS

 

How Genes Can Leap From Snakes to Frogs

By VERONIQUE GREENWOOD

The discovery of a hot spot for horizontal gene transfer draws attention to the possible roles of parasites and ecology in such changes.

Read the article

ASTROPHYSICS

 

Brightest-Ever Space Explosion Could Help Explain Dark Matter

By JONATHAN O'CALLAGHAN

A recent gamma-ray burst known as the BOAT appears to have produced a high-energy particle that shouldn’t exist. For some, dark matter provides the explanation.

Read the blog


Related: 
Gamma-Ray Bursts
Continue to Surprise

By Jonathan O'Callaghan (2021)

CRYPTOGRAPHY

 

New Entanglement Results Hint at Better Quantum Codes

By ALLISON PARSHALL

A team of physicists has entangled three photons over a considerable distance, which could lead to more powerful quantum cryptography.

Read the blog


Related: 
Stephanie Wehner Is
Designing a Quantum Internet

By Natalie Wolchover (2019)

INSIGHTS PUZZLE

 

How to Win at Wordle (Without Cheating)

By PRADEEP MUTALIK

This month's puzzle column attempts to use objective techniques to address some interesting aspects of Wordle. Try your hand at a solution in the comments section for a chance to win a free Quanta T-shirt or book.

Solve the puzzle


Related:
Why Claude Shannon Would
Have Been Great at Wordle

By Patrick Honner

QUANTA SCIENCE PODCAST

 

Protein Blobs Linked to Alzheimer’s Affect Aging in All Cells

Podcast hosted by SUSAN VALOT;
Story by VIVIANE CALLIER

A first-of-its-kind study offers a fresh perspective on what happens inside cells as they age.


Listen to the podcast

Read the article

Around the Web

It’s (Chatty) Turtles All the Way Down
Even typically quiet animals like turtles can vocalize. Recent work suggests that all forms of acoustic communications had a common origin 470 million years ago, evolving in concert with lungs, reports Elizabeth Pennisi for Science Magazine. All land vertebrates vocalize, but only some can mimic sounds that they hear. Neuroscientist Erich Jarvis has found that this “vocal learning” uses the same brain pathways as language. Jordana Cepelewicz interviewed Jarvis for Quanta in 2018.



Stretchy Protons Stunt the Strong Force
Protons are stretchier than expected. Their constituent quarks are pulled apart by an electric field more easily than the Standard Model predicts, reports James Riordon for Science News. Quantum chromodynamics (QCD), the model that describes how quarks interact with one another, is a notoriously complicated theory. In 2020 Charlie Wood wrote for Quanta about the unwieldy calculations needed for QCD. Recently, physicists helped create a series of animations to better understand the physics happening inside a proton. Last week, Quanta published an explainer using visuals from the collaboration.

#NSF

white bird with a red face a long beak
 
Research News

Bird enzyme points toward novel therapies

October 26, 2022
Thank the crested ibis for a clue that could someday help human bodies make their own drugs. The rare bird is the only one known to naturally produce…

#United Nations (*24/10/1945)

Peace, dignity and equality on a healthy planet

#28/10/2022 Bortolo Borin Achutti +. Nosso pai estaria completando 124 anos, e dois dias antes, 95 do casamento, com nossa mãe Luiza Cechella Achutti+. Na foto, quando comemoravam dez anos de casados, conosco estavam nossas duas irmãs: Lia Maria+ e Maria Helena, hoje com 92 anos, vivendo  comigo. 


Para celebrar, com a permissão do autor, divulgo o link de um capítulo do Professor Julio Bitencourt-Francisco sobre "Arábia santa-marienses: A saga dos imigrantes sírios e libaneses", já acessivel on-line, mas que será publicado como capítulo do livro 'História de Santa Maria: novos olhares'. O organizador é o Historiador Gustavo Andrade, devendo chegar às livrarias em fevereiro do ano que vem, mas também deverá estar online. 


Monday, October 17, 2022

3.107 - AMICOR

 3.107 AMICOR (25) 

Novembro 1995 no Lago Titicaca, Perú-Bolívia.

My Bookmarks

MULTIMEDIA | ALL TOPICS

 

Inside the Proton, the ‘Most Complicated Thing You Could Possibly Imagine’

Story by CHARLIE WOOD; Graphics by MERRILL SHERMAN

The positively charged particle at the heart of the atom is an object of unspeakable complexity, one that changes its appearance depending on how it is probed. We’ve attempted to connect the proton’s many faces to form the most complete picture yet.

Explore the visual explainer

QUANTUM PHYSICS

 

Experiments Spell Doom for Explanation of Quantum Weirdness

By PHILIP BALL

If the universe is fundamentally quantum, where does our classical reality come from? One popular explanation looks to be collapsing.

Read the article


Related: 
Physicists Rewrite a Quantum Rule
That Clashes With Our Universe

by Charlie Wood

GEOMETRY

 

Mathematicians Discover the Fibonacci Numbers Hiding in Strange Spaces

By LEILA SLOMAN

Recent explorations of unique geometric worlds reveal perplexing patterns, including the Fibonacci sequence and the golden ratio.

Read the blog


Related: 
Mathematicians Explore Mirror Link
Between Two Geometric Worlds

by Kevin Hartnett (2018)

Q&A

 

The Computer Scientist Who’s Boosting Privacy on the Internet

By STEVE NADIS

Harry Halpin wants our internet conversations to be more private. He’s helped create a new kind of network that might make it possible.

Read the interview

IN CASE YOU MISSED IT

 

The High Schooler Who Solved a Prime Number Theorem

Video by EMILY BUDER, NOAH HUTTON, TAYLOR HESS & RUI BRAZ

In his senior year of high school, Daniel Larsen proved a key theorem about primes, impressing prominent mathematicians.

Watch the video

Around the Web

Bees Have a Number Line
In a new study, honeybees continue to display their mathematical aptitude: They order numbers from left to right, suggesting that they have a “mental number line,” Darren Incorvaia reports for Science News. In past studies, honeybees have demonstrated that they understand the concept of zero and basic arithmetic. In 2020 Susan D’Agostino interviewed biologist Scarlett Howard for Quanta about how she teaches math to bees.

Do Zelda Next!
Scientists taught mouse and human brain cells in a dish to play the classic video game, Pong, reports Jon Hamilton for NPR. Studying the similarities between brains and computers has inspired new, efficient computing hardware. In February Allison Whitten wrote for Quanta about an AI that runs on a brain-inspired neuromorphic chip.
#UNDP
Multidimensional Poverty Index 2022 Released
The 2022 Multidimensional Poverty Index Report "Unpacking deprivation bundles to reduce  multidimensional poverty" finds that reducing poverty at scale is possible and unveils new 'poverty profiles' that can offer a breakthrough in development efforts to tackle the interlinked aspects of poverty.

The report identifies a series of 'deprivation bundles' -- recurring patterns of poverty -- that commonly impact those who live in multidimensional poverty across the world. The data are used to identify the poverty profiles that are more common in certain places. This is a crucial step in designing strategies that address multiple aspects of poverty at the same time.
FULL REPORT


#CFM

Publication date: 
October 14, 2022














KEY TAKEAWAYS:
We designed the Burden of Proof study to help consumers makes sense of confusing health guidance
by assigning a star-rating to pairs of risks and outcomes.
  • We reviewed thousands of studies on risks like smoking and eating red meat to determine
    how strong the evidence was that those risks lead to health impacts, and whether it’s worth
    changing your behavior.
  • Five-star ratings – like smoking & lung cancer and high blood pressure & heart attacks –
    indicate that there is strong evidence of association.
  • One-star ratings indicate that there may be no association at all, or that more evidence
    is needed on the topic.



Gamma-ray burst may represent the most powerful cosmic explosion ever recorded
(NASA/Swift/A. Beardmore (University of Leicester))

















Astronomers have spotted a bright blast of high-energy light that may be the most powerful
 cosmic explosion ever detected.
The high-energy emission known as a gamma-ray burst (GRB) – the most powerful type of
 explosion seen in our universe since the Big Bang – likely represents the moment a dying
star collapsed into a black hole, triggering a tremendous supernova explosion, astronomers
 said.
 Full Story: Live Science (10/19)















Astronomers have detected a gargantuan blast of energy from space that appears to be
doing the impossible: Traveling seven times faster than the speed of light. 
This is, of course, an optical illusion — a rare and mind-boggling phenomenon called
superluminal motion, which occurs when particles come very close to moving at the
speed of light. In this case, scientists detected a jet of energy blasting out of a stellar
collision site at a staggering 99.97% of the speed of light — about 670 million mph
(1.07 billion km/h), according to a study published Oct. 12 in the journal Nature.
 
Full Story: Live Science (10/19) 

#UN
logo