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Medical Xpress / Immune cells in the brain may tune fertility hormones, animal study suggests

The kick-off signal for puberty begins in the brain. Specifically, in the hypothalamus, where specific neurons release a hormone that activates the hypophysis, at the base of the skull, which then releases other hormones ...

4 hours ago
Tech Xplore / Why low-frequency spectrum is emerging as a quiet contender for future networks

While the world sprints toward ever faster mobile speeds, another connectivity story is quietly unfolding at the opposite end of the dial. Low-frequency spectrum—the radio bands below one gigahertz (GHz)—is emerging as ...

1 hour ago
Medical Xpress / Differences in early Alzheimer's brain markers across diverse populations appear in advanced PET brain scans

A team of researchers at the USC Mark and Mary Stevens Neuroimaging and Informatics Institute (Stevens INI) at the Keck School of Medicine of USC has identified important differences in how early Alzheimer's disease-related ...

1 hour ago
Medical Xpress / Power outages linked to more emergency hospital visits for older adults

Adults over age 65 experience greater numbers of emergency hospitalizations for cardiovascular and respiratory diseases during and after power outages, reports a new study by Heather McBrien of Columbia Mailman School of ...

4 hours ago
Phys.org / Webb spots details in nearby spiral galaxy NGC 5134

Two powerful instruments of the NASA/ESA/CSA James Webb Space Telescope joined forces to create this scenic galaxy view. This spiral galaxy is named NGC 5134, and it is located 65 million light-years away in the constellation ...

3 hours ago
Phys.org / Lost page of legendary Archimedes palimpsest found in France

It all started off as a joke, a French researcher told AFP. But what the team found was a piece of history—a long-lost page from a legendary manuscript by ancient Greek mathematician Archimedes which had been languishing, ...

6 hours ago
Phys.org / NASA clears its Artemis moon rocket for an April launch with four astronauts following repairs

NASA cleared its moon rocket on Thursday for an April launch with four astronauts after completing the latest round of repairs.

3 hours ago
Medical Xpress / Photos of food in local community lead parents to ask why there is so much ultra-processed and fast food

Feeding children ultra-processed foods, such as chicken nuggets, is common in the U.S. Social norms like this are difficult to change, but Rutgers Health researchers found that when parents take photos of the food available ...

2 hours ago
Medical Xpress / Fall prevention clinics for older adults provide a strong return on investment

Falls are one of the leading causes of injury and hospitalization among older adults, placing significant strain on individuals, families and the health care system. And new research by UBC Okanagan's Dr. Jennifer Davis shows ...

2 hours ago
Phys.org / Phone or affection: Study explores effect of phubbing on relationships

Is your phone use hurting your relationship? A study from researchers at the University of Connecticut and Columbia University published in the Journal of Social and Personal Relationships suggests it might be.

1 hour ago
Medical Xpress / AI-driven tool significantly personalizes antidepressant treatment, international trial finds

An AI-driven tool that tailors antidepressant treatment to individual patients was shown to improve outcomes for people with depression, compared to standard treatment, in a major international trial. It is the first time ...

5 hours ago
Phys.org / The 'croak' conundrum: Parasites complicate love signals in frogs

Across the animal kingdom, sound is more than communication—it's a signal of survival and success. From birds and primates to insects, fish, and amphibians, animals broadcast acoustic "advertisements" to defend territory, ...

6 hours ago