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A newly developed method allows researchers to dynamically switch chirality—a particular lack of mirror symmetry—to generate spin currents in semiconductors, researchers from Science Tokyo report. Their approach relies on the reversible insertion and removal of small chiral molecules from the interlayer gaps of a layered, nonchiral semiconductor material using electrochemistry.
The environment in which children grow up can play a central role in their mental development and psychological well-being. For instance, past studies have found that a family's socioeconomic status and the opportunities available to children are linked to different developmental outcomes, such as learning trajectories, attention and problem-solving capabilities.
US astronaut Christina Koch, the first woman to take part in a lunar mission, was named Wednesday the winner of a top Spanish prize for having "helped extend the frontiers of humanity."
Genes aren't just transferred from parents to their offspring. Nature has found other ways to pass on genetic information, even between different species. And a new study, published in the journal Proceedings of the National Academy of Sciences, reports that cockroaches, in particular, are riddled with DNA transferred from another species.
A new study published in Zoological Journal of the Linnean Society describes, for the first time in detail, the soft tissues preserved in Montsecosuchus depereti, a Lower Cretaceous crocodylomorph from the Pedrera de Meià site in the province of Lleida (Catalonia, Spain). The analysis, based on ultraviolet light, provides new clues to the coloration of these animals, as well as the evolution of the respiratory system. The research was led by the Institut Català de Paleontologia Miquel Crusafont.
Fifteen countries signed a global declaration Wednesday aimed at combating illegal and destructive fishing with better data.
Psilocybin combined with psychotherapy can lead to long-term improvements in depressive symptoms in people with treatment-resistant depression. This has been shown by a recently published long-term follow-up study conducted by the Central Institute of Mental Health (CIMH), Charité–Universitätsmedizin Berlin and the MIND Foundation. The antidepressant effects persisted for up to 12 months.
Dysfunction in the lymphatic system has been identified as a hidden driver of life-threatening heart valve disease in patients with Marfan syndrome, according to a new Northwestern Medicine study published in the Journal of Clinical Investigation.
More than 60 organizations are urging the FDA to withdraw approval for what they called the “unsafe” use of antibiotics for preventing disease in food-producing livestock.
Canadian scientists have demonstrated for the first time that a noninvasive brain-monitoring technique could help medical teams predict the future development of premature babies.
A research team from the Technion's Wolfson Faculty of Chemical Engineering has developed an original technology for treating cancer using nanoparticles that carry no drugs at all and has demonstrated its effectiveness against particularly dangerous and stubborn tumors.
A 16-month-old baby and his mother have recovered from Ebola in eastern Congo, a rare positive development as Africa's top health body warned the outbreak of the deadly virus could become the worst on record if it continues to spread.
Spain registered its third-warmest year on record in 2025, with 25 single-day heat records set during the period, national weather agency AEMET said Wednesday.
Silicon chips have powered computing for half a century. Increasingly, they are also becoming platforms to read and manipulate biology at scale—recording from many neurons, reading many DNA sequences and now synthesizing DNA.
The first tropical storm of the Atlantic hurricane season formed Wednesday near the Gulf Coast, bringing intense rain and the threat of dangerous flash floods to states including Texas and Louisiana, meteorologists said.
Researchers at the State University of Campinas (UNICAMP) in São Paulo, Brazil, have identified a new biomarker that may help determine the prognosis for patients with gastric cancer, the fifth most common type of cancer worldwide. The team identified a variable that combines data on the radiodensity of visceral fat and muscle by analyzing images from computed tomography (CT) scans, a routine examination for these patients. This variable can distinguish those at higher risk of unfavorable disease progression.
A research team at the University of Greifswald's Research Training Group RTG-PRO "Proteases in pathogen and host: importance in infection and inflammation" has discovered a new mechanism by which bacterial pathogens adjust their activity to the metabolism of infected host cells. Bacteria tailor their attack to the metabolic state of the host cells and are thus able to specifically regulate their pathogenic effects.
Pneumonia remains the leading infectious cause of death among children under 5 worldwide, claiming almost 1 million lives each year. Researchers at University College Dublin have developed an artificial intelligence tool that can more accurately identify young children with pneumonia at serious risk of needing hospital treatment. Found to significantly outperform existing risk assessment methods used to identify children who require urgent referral to the hospital, the BIOTOPE algorithm has the potential to save lives in low-resource health care settings.
Infants' activity while sleeping is rhythmic, according to a new study from the University of Surrey. The findings provide crucial insight into sleep cycles of infants in the first year of life. In the largest study of its kind, scientists from Surrey, led by Dr. Eva Winnebeck, investigated the sleep cycle development of 152 infants at ages 3, 6 and 12 months.
Once cotton gets wet, it pulls heat from your body. This is helpful when you're exercising or outside on a hot day, but dangerous in the bitter cold. Now, researchers reporting in ACS Energy Letters have created an ultralight synthetic fiber material with cotton-like fluffiness that also repels water. The prototype fabric outperformed regular cotton in both retaining heat in the cold and releasing heat at room temperature.