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48 articles from ScienceDaily

Virtual reality trains public to reverse opioid overdoses

The United States has seen a 200% increase in the rate of deaths by opioid overdose in the last 20 years. But many of these deaths were preventable. Naloxone, also called Narcan, is a prescription drug that reverses opioid overdoses, and in more than 40 states there is a standing order policy, which makes it available to anyone, without an individual prescription from a healthcare provider.

Gene-edited livestock 'surrogate sires' successfully made fertile

For the first time, scientists have created pigs, goats and cattle that can serve as viable 'surrogate sires,' male animals that produce sperm carrying only the genetic traits of donor animals. The advance could speed the spread of desirable characteristics in livestock and improve food production for a growing global population.

Antarctica: Cracks in the ice

West Antarctica's Pine Island Glacier and Thwaites Glacier have been undergoing rapid changes, with potentially major consequences for rising sea levels. However, the processes that underlie these changes and their impact on these ice sheets have not been fully charted. One of these processes has now been described in detail: the emergence and development of damage/cracks in part of the glaciers...

Substance use disorders linked to COVID-19 susceptibility

A recent study found that people with substance use disorders (SUDs) are more susceptible to COVID-19 and its complications. The findings suggest that health care providers should closely monitor patients with SUDs and develop action plans to help shield them from infection and severe outcomes.

Structure of ATPase, the world's smallest turbine, solved

The chemical ATP, adenosine triphosphate, is the fuel that powers all life. Despite ATP's central role, the structure of the enzyme generating ATP, F1Fo-ATP synthase, in mammals, including humans, has not been known so far. Now, scientists report the first complete structure of the mammalian F1Fo-ATP synthase. This structure also settles a debate on how the permeability transition pore, a...

Arctic transitioning to a new climate state

The fast-warming Arctic has started to transition from a predominantly frozen state into an entirely different climate with significantly less sea ice, warmer temperatures, and more rain, according to a comprehensive new study of Arctic conditions.

Climate change triggers migration, particularly in middle-income countries

Environmental hazards affect populations worldwide and can drive migration under specific conditions. Changes in temperature levels, increased rainfall variability, and rapid-onset disasters, such as tropical storms, are important factors as shown by a new study. Environmental migration is most pronounced in middle-income and agricultural countries but weaker in low-income countries, where...