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Phys.org / 100-million-year-old molecular 'bypasses' may have helped grasses dominate landscapes and agriculture
100 million years ago, long before human intervention, ancestors of grasses, including wheat, rice and maize, developed "bypasses" in chemical pathways used to create two critical compounds: lignin and starch. These more ...
Medical Xpress / Tsimané and Moseten peoples of lowland Bolivia demonstrate an intriguing case of epidemiological resilience
Despite widespread COVID-19 infection in the Tsimané and Moseten populations of Bolivia, the mortality rate in these remote Indigenous groups was the lowest ever recorded for any population or region.
Phys.org / Tobacco companies helped flood the federal comment process that stalled menthol cigarette ban
When the U.S. Food and Drug Administration (FDA) proposed banning menthol cigarettes and flavored cigars in 2022, nearly 250,000 public comments flooded in—a record response that led the Biden administration to delay a final ...
Phys.org / Clubbing may boost well-being for women in midlife
An online survey published in the journal Psychology of Music asked 136 women ages 40 and older about their experiences at electronic dance music (EDM) events. Nine in 10 respondents (91%) said clubbing contributes positively ...
Phys.org / Why social media algorithms send you posts you don't like
Do your social media accounts feed you content that reflects your core beliefs and guiding principles? Our new research published in the Proceedings of the National Academy of Sciences shows that the algorithms supplying ...
Phys.org / NASA's LRO images Falcon 9 crater on moon, learns new details
Between Aug. 11–12, NASA's Lunar Reconnaissance Orbiter (LRO) captured a series of images of a new crater on the moon. The crater formed Aug. 5, when a SpaceX Falcon 9 upper stage impacted the surface following its Jan. 2025 ...
Phys.org / From the lab to headlines: Why do some studies make the news while others don't?
When we read a news story about a new cancer treatment, an Alzheimer's breakthrough or an innovative technology, we rarely think about everything that happens behind the scenes before that information reaches newspapers, ...
Phys.org / Illuminating the limits of the international unit of light, the candela
The candela, the international unit of light in use for almost a century, forms the basis of photometry. According to a new study, measurements derived from it systematically misjudge the brightness of colored light sources ...
Medical Xpress / Submillimeter MRI reveals brain hubs that guide risky decisions
Imagine that a notification on your financial app captures your attention about a stock projected to have a 68% chance of doubling your investment within a month, with a 32% chance of total loss. Would you commit a $50,000 ...
Medical Xpress / Living near dry cleaners linked to increased likelihood of Parkinson's disease
People living near dry cleaners may have a higher risk of developing Parkinson's disease, according to a new nationwide study led by researchers at Barrow Neurological Institute in Phoenix.
Phys.org / How sex sheds evolutionary baggage
Why is there sex—or, more precisely, sexual reproduction? If you're an evolutionary biologist, the answer isn't obvious. Sexual reproduction is biologically costly, requiring not only competition for mates but also the creation ...
Medical Xpress / Human multi-organ chip tracks breast cancer spread to bone and lung
Cancer spreading beyond the primary tumor—a process known as metastasis—is responsible for at least two-thirds of cancer deaths. Drugs targeting metastatic progression have largely failed, in part because of the lack of predictive ...
