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Senate Confirms Bryan Bedford to Lead FAA

The agency is under pressure to modernize outdated air traffic control systems that have contributed to a series of outages, near-misses and deadly accidents in recent months.

© Haiyun Jiang for The New York Times

Bryan Bedford testifying before the Senate transportation committee during a confirmation hearing at the Capitol last month.

New Research Questions Severity of Withdrawal From Antidepressants

Warnings about withdrawal from antidepressants have rippled through society in recent years. A new study claims they are overblown.

© Diana Vyshniakova/Alamy

A 37,000-Year Chronicle of What Once Ailed Us

In a new genetic study, scientists have charted the rise of 214 human diseases across ancient Europe and Asia.

© CNRI/Science Source

Yersinia pestis, the microbe that causes plague. DNA in human fossils has revealed a surge in the disease about 5,000 years ago.

Antarctica Faces Tense Future as U.S. Science Budget Shrinks

The continent is dedicated to research and cooperation, but proposed funding cuts in the Trump administration and actions by other world powers may alter the environment.

© Colin Harnish/Shutterstock

The National Science Foundation’s McMurdo Station in Antarctica.

Vietnam Aches for Its M.I.A.’s. Will America Stop Funding Science to Identify Them?

New breakthroughs in DNA analysis offer a chance to identify more of the lost from wars and disasters stretching back decades — if the U.S. helps.

Filling in the grave of an unidentified soldier after bone samples were collected at Tra Linh Cemetery in northern Vietnam.

How New DNA Science Could Help More Families of the Missing

Emerging methods are improving the ability to identify even highly degraded human remains.

© Linh Pham for The New York Times

Researchers processing bone samples from an unidentified soldier missing in action collected at Tra Linh Cemetery in northern Vietnam, for DNA testing at the Center for DNA Identification at the Institute of Biotechnology of the Vietnam Academy of Science and Technology, in Hanoi, Vietnam.

Une molécule extraite d’un arbre pourrait permettre de lutter contre le VIH et d’autres virus

Une équipe de l’Institut national de la recherche scientifique développe des molécules qui pourraient devenir des traitements antiviraux contre le virus du VIH, Ebola, la dengue et le coronavirus.

Les chercheurs de l’institut québécois utilisent des molécules naturelles présentent en grande quantité dans les écorces de bouleau blanc. 

  • Ils ont modifié ces molécules afin de les rendre plus solubles et sans danger pour les cellules humaines.

Les molécules obtenues seraient capables de bloquer l’entrée du VIH et d’autres virus dans les cellules du système immunitaire.

[L'article Une molécule extraite d’un arbre pourrait permettre de lutter contre le VIH et d’autres virus a d'abord été publié dans InfoBref.]

Don’t Like Eating Insects? Your Pet Might.

Could insect meal and lab-grown meat be a more sustainable, ethical way to feed our cats and dogs?

© Sonny Figueroa/The New York Times

92-Year-Old U.K. Man Gets Life Sentence for 1967 Rape and Murder

Ryland Headley was convicted this week in the killing of 75-year-old Louisa Dunne. The police used DNA evidence to solve what had been one of Britain’s oldest cold cases.

© Avon and Somerset Police

Ryland Headley, 92, in an undated handout photo from Avon and Somerset Police.

Maîtriser son taux de cholestérol | Fondation des maladies du cœur et de l’AVC

Le taux de cholestérol est dans le sang. On retrouve deux types principaux de cholestérol sanguin : celui de haute densité, ou HDL, et celui de faible densité, ou LDL.
Le cholestérol LDL est celui qu’on dit « mauvais » : s’il est présent en trop grande quantité, il peut former des plaques et des dépôts gras sur les parois des artères, et ainsi empêcher le sang de circuler jusqu’au cœur et au cerveau.
Le HDL, en comparaison, est « bon », car il permet d’éliminer l’excès de cholestérol que l’on retrouve dans le corps.
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