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Phys.org / Mate choice: How social trends influence mate diversity

Whether people follow a general trend when choosing a partner or consciously decide against it has a noticeable impact on the diversity of phenotypes to choose from. This is shown by a new study by the University of Würzburg.

Feb 24, 2026 in Biology
Tech Xplore / Chatbots overemphasize sociodemographic stereotypes, researchers report

People interact with artificial intelligence (AI)-powered chatbots, which can be trained to take on certain demographic attributes like age and race, for information, entertainment, technical help, learning, emotional support, ...

Feb 26, 2026 in Machine learning & AI
Tech Xplore / Unlocking the 'urban mine': A path to US mineral sovereignty through e-waste

Inside America's junk drawers sits an untapped fortune, and a national and economic security solution. As the global race for critical minerals intensifies, University of Houston researchers have unveiled a breakthrough supply ...

Feb 24, 2026 in Business
Medical Xpress / Lab-grown reservoir cells aim at HIV's last strongholds

A new study has overcome a long-standing challenge: how to isolate and study elusive HIV-infected cells called authentic reservoir clones (ARCs) that evade the immune system, making the disease difficult to cure. Researchers ...

Feb 24, 2026 in HIV & AIDS
Medical Xpress / Why do falls rise with age? Study points to cerebellar neuron firing

A new McGill University study has found a direct link between age-related declines in neuron activity in the cerebellum and worsening motor skills, including gait, balance and agility. While it is well known that these abilities ...

Feb 23, 2026 in Neuroscience
Medical Xpress / Disadvantaged communities have decreased access to dialysis facilities, according to research

As community disadvantage increases, access to dialysis facilities decreases, according to a research letter published online Feb. 23 in JAMA Internal Medicine. Yu-Chu Shen, Ph.D., from the Department of Defense Management ...

Phys.org / Challenging assumptions behind Africa's Green Revolution efforts and calls for farmer-centered development models

A new study examining small-scale farming in Tanzania argues that major agricultural development initiatives, including the Alliance for a Green Revolution in Africa (AGRA), are built on flawed assumptions about how rural ...

Feb 26, 2026 in Biology
Phys.org / Scientists deliver new molecule for getting DNA into cells

Researchers from Tokyo Metropolitan University have created a new molecule which carries DNA into biological cells, to treat or vaccinate against illnesses. Many existing options rely on molecules with a strong positive charge, ...

Feb 23, 2026 in Nanotechnology
Phys.org / When smaller means better: How device scaling enhances memory performance

Shrinking ferroelectric tunnel junctions can significantly boost their performance in memory devices, as reported by researchers from Science Tokyo. The team fabricated nanoscale junctions directly on silicon substrates and ...

Feb 24, 2026 in Nanotechnology
Phys.org / Molecular identification of an enzyme reported over 60 years ago

From the 1950s to 1970s, discovery of enzymes began by identifying new chemical reactions within cell-free extracts, but their molecular identification among (function unknown) hypothetical genes (proteins) is difficult. ...

Feb 26, 2026 in Chemistry
Phys.org / Turning high-emissions waste into fertilizer: Catalyst boosts urea production by coupling CO₂ with nitrogen pollutants

UNSW engineers have tackled a longstanding problem at the heart of global agriculture: how to make urea for fertilizer without the intensity of emissions associated with fossil-fuel-powered factories. The solution is outlined ...

Feb 23, 2026 in Chemistry
Medical Xpress / Why our immune system remembers vaccinations for decades

Why can the human immune system often remember a vaccination for a whole lifetime? Researchers at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen have now investigated this question. ...

Feb 24, 2026 in Immunology