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Phys.org / Invasive species hit the Global South significantly harder than previously assumed

Invasive alien species are among the world's leading drivers of species extinction. However, previous global assessments of the geographic distribution of this damage suffered from a systematic "research bias": Because significantly ...

18 hours ago
Medical Xpress / Human brainpower may get boost from immune cells that mature slowly

Microglia are the most common immune cells in the brain, where they defend against intruders and engulf damaged neurons. Now, scientists at Columbia's Zuckerman Institute have discovered for the first time that, just like ...

19 hours ago
Phys.org / Sharks, spines and speed: The hidden architecture behind different swimming styles revealed

"Shark Week," which kicks off this week, has captivated audiences for decades with stories of these powerful ocean predators. But the secret behind their extraordinary swimming abilities lies far deeper than their impressive ...

19 hours ago
Medical Xpress / Supersized glassy shell of microalgae reveals optical effect valuable for medical imaging

Researchers from Skoltech—a VEB.RF group institution—and their colleagues at the Kurchatov Institute, the Prokhorov General Physics Institute and the Institute of Solid State Physics of the Russian Academy of Sciences have ...

8 hours ago
Phys.org / Scientists pinpoint where cells first begin copying DNA

Researchers at the MRC Laboratory of Medical Sciences (LMS) and collaborators have uncovered one of the earliest steps in DNA replication: the moment a cell first opens its DNA to begin making a copy of its genome. The findings, ...

17 hours ago
Tech Xplore / AI underwater robots can now track diver stress via exhaled bubbles

University of Minnesota Twin Cities researchers have developed a first-of-its-kind AI system that allows underwater companion robots to monitor a diver's health in real time simply by "watching" their exhaled bubbles.

17 hours ago
Phys.org / Seawater samples may offer early clues to changing reef health

Doctors can often detect diseases in humans using minimally invasive methods, like blood or urine tests, before symptoms become severe. Now, researchers at the Woods Hole Oceanographic Institution (WHOI) are applying a similar ...

10 hours ago
Phys.org / Biomolecular condensates reveal surprising activity as catalysts

Biomolecular condensates are ubiquitous in living cells, including bacteria, viruses, plants and mammalian systems. These membraneless bodies, or molecular communities made up of DNA, RNA and proteins, are where molecules ...

17 hours ago
Phys.org / Christmas in July: Engineers capture gigapixel 3D video of snowflakes

For the first time, researchers can witness nanometer-scale thickness changes across a melting snowflake with a compact, lensless chip that captures gigapixel video at 30 frames per second across centimeter-scale fields.

18 hours ago
Phys.org / Pennsylvania roads are being coated in radioactive wastewater—here's why

Pennsylvania's roughly 100,000 oil and gas wells produce wastewater that's many times saltier than seawater and contains radium, a known carcinogen. For decades, that saltwater, called brine, was spread on dirt and gravel ...

20 hours ago
Medical Xpress / 1 in 3 women and 1 in 4 men engage in intentional outdoor tanning

Nearly one-third of women and one-quarter of men engage in intentional outdoor tanning, with variation observed by age, race, physical activity level and alcohol use, according to a study published in JAMA Dermatology.

10 hours ago
Medical Xpress / Stretchable antenna keeps wearable health sensors in tune with human health

Wearable health monitors are designed to move with the body. But for many devices, movement creates a problem: The more a person bends, stretches, reaches or runs, the harder it can be for the device to keep a stable wireless ...

18 hours ago