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Phys.org / Space travel doesn't affect the strength of heart muscle cells, study finds

It's common to see images of astronauts on the International Space Station exercising, running on special treadmills and pedaling cycles designed for tight quarters.

2 hours ago
Phys.org / Genetic switch could help tomatoes produce fruit in cold weather

Every tomato begins with a flower. But before a fruit can grow, an intricate sequence of events must happen in perfect order. The flower's male and female organs must develop together, pollen must be released at exactly the ...

4 hours ago
Phys.org / DNA research highlights the genetic vulnerability of Asian elephants

The DNA of Asian elephants tells a concerning story. Although all four subspecies are under pressure, there are considerable differences in their genetic health. In an article published in the journal Genome Biology and Evolution, ...

3 hours ago
Phys.org / Single synthetic peptide forms electrically polarized, self-healing hydrogel

Researchers from the RIKEN Center for Sustainable Resource Science (CSRS) and RIKEN Pioneering Research Institute (PRI) in Japan, together with collaborators from the University of Münster, Germany, have developed a new hydrogel ...

4 hours ago
Medical Xpress / Sweat sensor enables continuous noninvasive measurement of cholesterol

If you see a doctor regularly, chances are you have had a lipid panel ordered and your blood drawn at a lab. The results told your physician your levels of cholesterol and triglycerides, factors that play a role in diagnosing ...

4 hours ago
Phys.org / Famous oddball quasar isn't X-ray weak after all, astronomers say

For more than two decades, the quasar PHL 1811 has been considered the prototype of a rare class of "intrinsically X-ray weak" quasars, thought to produce unusually little X-ray radiation. But in 2024, the Einstein Probe ...

7 hours ago
Medical Xpress / Epidural may help turn breech babies, reducing need for C-section

Women carrying breech babies have a better chance of avoiding a cesarean delivery (C-section) when spinal or epidural anesthesia is used during external cephalic version (ECV), a procedure used to turn the baby head-down ...

1 hour ago
Phys.org / Graphene nanowrinkles could reshape electricity in future ultrathin devices

Rice University researchers have shown that tiny wrinkles in graphene can change the material's electrical properties, providing evidence for flexoelectricity, a phenomenon in which a material generates an electric charge ...

2 hours ago
Phys.org / Microbes turn CO₂ into protein and vitamin B9 at commercially viable prices

Researchers are developing biotechnological processes that enable microbes to produce proteins and vitamins for human consumption using basic chemical ingredients, such as carbon dioxide, hydrogen and oxygen—entirely bypassing ...

4 hours ago
Medical Xpress / Cancer protein p53 observed in action reveals more order than expected

Cancer occurs when cells divide uncontrollably and displace healthy cells. Tumor suppressors provide an important defense against this. As molecular growth inhibitors, they prevent healthy cells from becoming cancerous. A ...

4 hours ago
Phys.org / Claim that science is becoming less disruptive challenged after years-long publication delay

A widely cited Nature cover article from 2023 claimed that scientific innovation has significantly declined in recent decades. This finding was based on a citation analysis of large sets of metadata concerning scientific ...

4 hours ago
Tech Xplore / Extending AI architectures to address continuous scientific problems

Artificial intelligence is proving to be transformative in its ability to work with language and images. Now, with a growing push to apply AI to scientific discovery, Caltech's Anima Anandkumar says there is a crucial ingredient ...

4 hours ago