US imposes further sanctions on Russian chemistry institute

A Russian chemistry institute has been targeted for further sanctions by the US government, as part of a larger attempt to make it harder for the country to continue its invasion of Ukraine. The Treasury Department announced on 31 March that it is going after Russian tech companies, including the Russian government-funded Central Scientific Research […]

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Does this artificial intelligence think like a human?

In machine learning, understanding why a model makes certain decisions is often just as important as whether those decisions are correct. For instance, a machine-learning model might correctly predict that a skin lesion is cancerous, but it could have done so using an unrelated blip on a clinical photo. While tools exist to help experts […]

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Study reveals the dynamics of human milk production

For the first time, MIT researchers have performed a large-scale, high-resolution study of the cells in breast milk, allowing them to track how these cells change over time in nursing mothers. By analyzing human breast milk produced between three days and nearly two years after childbirth, the researchers were able to identify a variety of […]

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Boosting liver mRNAs curbs appetite, body weight in obese mice

In a breakthrough discovery, scientists from The University of Texas Health Science Center at San Antonio (UT Health San Antonio) today reported that inhibiting a liver enzyme in obese mice decreased the rodents’ appetite, increased energy expenditure in adipose (fat) tissues and resulted in weight loss. The finding, published in Cell Metabolism, provides a potentially desirable drug […]

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Vitamin K shows evidence of brain benefits in rats

In a new study conducted in rats, scientists report evidence that vitamin K could help protect against aging-related cognitive declines associated with Alzheimer’s disease and other forms of dementia. “Vitamin K2 demonstrated very promising impact in hindering aging-related behavioral, functional, biochemical and histopathological changes in the senile aging brain,” said Mohamed El-Sherbiny, PhD, of AlMaarefa […]

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Childhood emotional trauma linked to heightened MS risk among women

Childhood trauma may be linked to a heightened risk of multiple sclerosis (MS) in later life among women, finds research published online in the Journal of Neurology Neurosurgery & Psychiatry. The observed associations were strongest for sexual abuse and for experience of several categories of abuse, the findings show. The evidence suggests that childhood trauma can […]

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Honey holds potential for making brain-like computer chips

Honey might be a sweet solution for developing environmentally friendly components for neuromorphic computers, systems designed to mimic the neurons and synapses found in the human brain. Hailed by some as the future of computing, neuromorphic systems are much faster and use much less power than traditional computers. Washington State University engineers have demonstrated one […]

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New colleagues may be treated differently depending on attractiveness, gender

Skillset, experience, work ethic — and appearance? According to a new Penn State study, reactions to a new work team member may differ depending on the newcomer’s attractiveness and gender. The paper, co-authored by Stephen Humphrey, Alvin H. Clemens Professor of Management in the Penn State Smeal College of Business, investigates how team members engage […]

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Are egg cells in aging primates protected from mutations?

New mutations occur at increasing rates in the mitochondrial genomes of developing egg cells in aging rhesus monkeys, but the increases appear to plateau at a certain age and are not as large as those seen in non-reproductive cells, like muscle and liver. A new study using extremely accurate DNA sequencing methodology suggests that there […]

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