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Medical Xpress / Experts warn suicides are undercounted in the US

America is undercounting the number of suicide deaths, despite the rise in suicide rates in the 21st century, experts caution in a commentary published in the journal Injury Prevention.

24 minutes ago
Medical Xpress / Our genes may shape what we eat and our metabolic health

Ever wonder why some people crave sweets while others can take them or leave them? Preliminary findings from a new study suggest that people who carry certain genetic variants associated with a preference for sweet or fatty ...

14 minutes ago
Medical Xpress / Is your diet driving up your cholesterol? That may depend on your genes

Can a low-carb diet cause your cholesterol to skyrocket? This question has vexed researchers and influencers alike as the popularity of low-carbohydrate diets has surged, yet the evidence has remained mixed. New research ...

14 minutes ago
Medical Xpress / Treating hepatitis C in chimpanzees used in former medical experiments

As close relatives of humans, chimpanzees have sometimes been used in biomedical experiments. They were instrumental in the identification of the hepatitis C virus: The then-mysterious pathogen was artificially injected into ...

1 hour ago
Phys.org / Can a newly discovered soil fungus stop the devastating African armyworm when chemicals have failed?

The African armyworm is a highly destructive migratory pest that damages maize, sorghum, millet and sugarcane. These caterpillars also cause indirect damage to livestock by destroying grazing lands and pastures.

44 minutes ago
Phys.org / Rethinking how we protect the world's mountain communities

As melting glaciers and shifting climates push mountain ecosystems to the brink, an international team of researchers has outlined a radical new approach aimed at strengthening the resilience, inclusivity and sustainability ...

1 hour ago
Phys.org / Scientists pinpoint where cells first begin copying DNA

Researchers at the MRC Laboratory of Medical Sciences (LMS) and collaborators have uncovered one of the earliest steps in DNA replication: the moment a cell first opens its DNA to begin making a copy of its genome. The findings, ...

1 hour ago
Phys.org / Extragalactic positron-annihilation hotspots might mean Milky Way produces far more positrons than thought

Positrons—the antimatter counterpart of electrons—are created in high-energy cosmic processes. When normal matter meets its antimatter counterpart, they annihilate, or vanish, and produce a distinctive 511 keV gamma-ray signal. ...

2 hours ago
Phys.org / Low-level cloud loss amplifies global warming, simulations suggest

Low-level clouds over Earth's oceans play a prominent role in keeping our planet cool by reflecting sunlight away from the surface. But their response to climate change has been hard to model. Now, researchers at Caltech ...

1 hour ago
Phys.org / Physicists capture first direct evidence of a Floquet topological state

A new study published in Nature Physics reports the first direct experimental evidence of a Floquet topological state, a novel light-induced phase of matter that, until now, has existed only on paper and in simulations. Topological ...

6 hours ago
Phys.org / Invasive species hit the Global South significantly harder than previously assumed

Invasive alien species are among the world's leading drivers of species extinction. However, previous global assessments of the geographic distribution of this damage suffered from a systematic "research bias": Because significantly ...

2 hours ago
Medical Xpress / Scientists decipher how T cells sense enemies—such as cancer—at point of contact

Every encounter between a T cell and a potential target—especially when that target is a developing tumor—begins with a rapid series of molecular decisions. Within seconds, the immune cell must determine whether to launch ...

6 hours ago