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Phys.org / May 2024 superstorm drew most ring current ions from Earth, not solar wind, research reveals

In May 2024, auroras were observed at unusually low latitudes across the globe, lighting up skies that rarely see such displays. Inside Earth's magnetosphere, the region of space surrounding our planet and dominated by its ...

8 hours ago
Medical Xpress / Blood vessel cells keep fixed signaling roles for weeks, reshaping view of capillary communication

The cells lining skin capillaries are constantly sending each other messages—tiny pulses of calcium that help regulate blood flow, sense physical forces and keep vessel walls intact. Scientists have known about this signaling ...

9 hours ago
Medical Xpress / Bioresorbable implant electrically stimulates organs, nerves and muscles then vanishes after treatment

To treat or manage various heart, gastrointestinal and neurological conditions, including arrhythmias, heart block, gastroparesis, epilepsy and some nerve injuries, doctors rely on a technique known as electrical stimulation. ...

15 hours ago
Phys.org / Semiconductor quantum dots 'reawaken' predicted Rabi oscillations, boosting quantum control

Physicists at Paderborn University have, for the first time, experimentally demonstrated the so-called "return" of Rabi oscillations in semiconductor quantum dots. The phenomenon, which was first predicted theoretically in ...

9 hours ago
Phys.org / Pacific plate's rotation gave Alaska's Aleutian Islands a later-life lift

New research by Brown University geologists confirms that the Aleutian Islands, the archipelago stretching from Alaska to Russia's Kamchatka Peninsula, experienced a massive geological uplift between 5 million and 7 million ...

10 hours ago
Tech Xplore / An AI model that thinks like we do offers new ways to peer inside the black box

When a standard large language model (LLM) is confronted with a problem, it tries to solve it by matching it to similar information it has seen before, and then give an answer based on those past patterns. But how it decides ...

10 hours ago
Medical Xpress / AI-guided microneedles bend at body temperature to speed diabetic wound healing

Chronic wounds remain a major health care challenge, especially for people with diabetes, who often experience delayed healing, persistent inflammation and a higher risk of infection. Traditional wound-closure methods such ...

4 hours ago
Phys.org / Screen reveals new proteins that control RNA processing

Researchers at the University of California San Diego have developed a large-scale screening approach that identifies proteins controlling a fundamental step in gene expression known as alternative polyadenylation (APA). ...

10 hours ago
Phys.org / European heatwave's unlikely accomplice: An ocean 'cold blob'

The heat wave battering Europe may have an unlikely partner in crime: a patch of cold ocean water south of Iceland and Greenland that can influence weather patterns over the continent.

11 hours ago
Tech Xplore / Shifting data center power to off-peak hours could cut grid costs in the age of AI

The number of U.S. data centers is growing, largely to power artificial intelligence programs. That has led to concern about the environmental consequences of data centers—and their impact on the energy grid itself. What ...

8 hours ago
Medical Xpress / AI support tool improves clinician decisions in real-world primary care trial

A large real-world clinical trial has found that a generative AI-powered support tool used to support frontline clinicians was safe and improved the quality of clinical decision-making, but did not significantly change short-term ...

9 hours ago
Medical Xpress / Modular coatings customize hydrogel implants to boost adhesion and limit fibrosis

Researchers led by Jiawei Yang, Worcester Polytechnic Institute (WPI) Assistant Professor in the Department of Mechanical and Materials Engineering, have designed a modular system that could potentially improve hydrogel implants ...

9 hours ago