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Friday, March 14, 2025

3.193 AMICOR

 3.193 AMICOR

#Professr Eugene Braunwald

                  https://m.youtube.com/watch?v=UTeXOA7fC3U
Comprimantos ao Dr. Luiz Nasi, Dra. Carisi Polankzyk e Dr. André Zimmerman

# INTER PRESS SERVICE 

In contrast to the rapid growth of the high fertility countries like the DRC and Nigeria, some of the largest populations in 1950, such as Germany, Italy, Japan and Russia, have grown relatively slowly during the recent past. Credit: Shutterstock.

PORTLAND, US, Mar 4 2025 (IPS) - As the world’s population increased five-fold since the start of the 20th century, the changes in the geographic distribution of the billions of people across the planet have been ongoing and significant.

Those continuing changes in the distribution of the world’s population have weighty economic, political, social and environmental consequences (Table 1).

 As the world’s population increased five-fold since the start of the 20th century, the changes in the geographic distribution of the billions of people across the planet have been ongoing and significant

Source: United Nations.

 Particularly noteworthy are the changing proportions of the world’s population living in Africa and Europe. At the start of the 20th century the proportions of the world’s population residing in Africa and Europe were 8% and 25%, respectively. By the end of that century, the proportions were similar, 13% for Africa and 12% for Europe. By 2050, however, the proportions of the world’s population residing in Africa and Europe are expected to be very different at 26% and 7%, respectively (Figure 1).

 

Source: United Nations.

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GEOMETRY | ALL TOPICS

 

Years After the Early Death of a Math Genius, Her Ideas Gain New Life

By JOSEPH HOWLETT

A new proof extends the pioneer work of the late Maryam Mirzakhani, cementing her legacy as a pioneer of alien mathematical realms.

Read the article

THEORETICAL PHYSICS

 

‘Next-Level’ Chaos Traces the True Limit of Predictability

By CHARLIE WOOD

Physicists are exploring how even ordinary physical systems put hard limits on what we can predict, even in principle.

Read the article

ECOLOGY

 

The Chemical Signature of Just One Species Can Shape an Ecosystem

By MOLLY HERRING

Rare and powerful compounds, known as keystone molecules, can build a web of invisible interactions among species.

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QUANTA SCIENCE PODCAST

 

How the Human Brain Contends With the Strangeness of Zero

Podcast hosted by JANNA LEVIN
Story by YASEMIN SAPLAKOGLU

Zero, which was invented late in history, is special among numbers. New studies are uncovering how the brain creates something out of nothing.

Read the article

Listen to the podcast

GEOMETRY | ALL TOPICS

 

‘Once in a Century’ Proof Settles Math’s Kakeya Conjecture

By JOSEPH HOWLETT

The deceptively simple Kakeya conjecture has bedeviled mathematicians for 50 years. A new proof of the conjecture in three dimensions illuminates a whole crop of related problems.

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THE JOY OF WHY

 

New Conversations, Deep Questions, Bold Ideas in Season Four of ‘The Joy of Why’

Steven Strogatz and Janna Levin return for a new season on major scientific and mathematical questions of our time, with 12 all-new episodes and a new format.

Read the transcript

Listen to the podcast

EXOPLANETS

 

The Road Map to Alien Life Passes Through the ‘Cosmic Shoreline'

By ELISE CUTTS

Astronomers are figuring out which planets are likely to have atmospheres, in a search for the fingerprints of life on faraway worlds.

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NATURAL LANGUAGE PROCESSING

 

Why Do Researchers Care About Small Language Models?

By STEPHEN ORNES

Larger models can pull off a wider variety of feats, but the reduced footprint of smaller models makes them attractive tools.

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# IHME 

Trends in the global, regional, and national burden of oral conditions from 1990 to 2021: a systematic analysis for the Global Burden of Disease Study 2021 - Published February 27, 2025, in The Lancet 

Background

The WHO Global Oral Health Action Plan has set an overarching global target of achieving a 10% reduction in the prevalence of oral conditions by 2030. Robust and up-to-date information on the global burden of oral conditions is paramount to monitor progress towards this target. The aim of this systematic data analysis was to produce global, WHO region, and country-level estimates of the prevalence of, and disability-adjusted life-years (DALYs) attributed to, untreated caries, severe periodontitis, edentulism, other oral disorders, lip and oral cavity cancer, and orofacial clefts from 1990 to 2021.

Authors

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