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Medical Xpress / Ketamine triggers morning cortisol surge tied to fewer suicidal thoughts—but the link remains uncertain
In 1970, ketamine was approved as an anesthetic. It works by blocking receptors in the brain. Suicidal tendencies are among the dangers that accompany severe depression. Doctors have found that a low dose of ketamine, much ...
Phys.org / Natural insecticide made from compound found in garlic and spearmint kills bean beetles effectively
In an effort to develop more environmentally friendly alternatives to synthetic insecticides, researchers from Kyushu University have developed and tested a new insecticide made from compounds derived from garlic and spearmint.
Medical Xpress / Household hums below hearing range damage mouse kidneys in five-day experiment
Previous studies have hinted that people surrounded by more environmental noise—low, deep rumblings from air-conditioning units, elevator motors, distant traffic and ventilation ducts—tend to have worse kidney function. But ...
Tech Xplore / AI agents automate atom-by-atom simulations to accelerate discovery of new materials
A team from the U.S. Department of Energy's (DOE) Argonne National Laboratory has successfully demonstrated an artificial intelligence (AI)-driven system to automate a powerful simulation method that predicts how atoms in ...
Phys.org / Researchers unlock high-res view of 2D materials by doing a microscopic twist
By rapidly twisting a microscopically small tip back and forth, researchers at the University of Maryland (UMD) have unlocked a new way to detect subtle changes on the surface of a material flexing in response to infrared ...
Phys.org / Just 50°C decides whether an ultrathin magnetic film stays flat or falls apart
Magnetic storage technologies, which store information in the direction of magnetization, play an essential role in modern data storage. Hard disk drives (HDDs) are widely used for long-term storage, while nonvolatile magnetic ...
Medical Xpress / Parkinson's-linked α-synuclein blocks protein transport in neurons, disrupting cells' waste recycling
Parkinson's disease affects more than 10 million people worldwide. The disease is characterized by the buildup of abnormal clumps of the protein alpha-synuclein inside brain cells, but scientists have long struggled to understand ...
Phys.org / Uranus's unusual rotation makes its bow shock expand and contract each day
Within our solar system, Uranus is a geometric oddball. Its spin axis tilts more than 90° from its orbit, so it essentially rolls on its side through space. In contrast, Earth and other planets tilt only moderately or not ...
Medical Xpress / How early-life stress leaves a 'scar' inside brain cells
Experiencing severe stress during childhood can make a person more vulnerable to anxiety, depression and other mood disorders when faced with hardships as an adult. Researchers at Washington University School of Medicine ...
Tech Xplore / When security becomes a risk factor—privacy risks of public URL-scanning services
URL scanning services are now a common component of modern security workflows. They help detect phishing websites or malware early and warn users before they visit a URL. However, the practice of some of these services—publishing ...
Medical Xpress / Radiopharmaceutical may benefit patients with metastatic prostate cancer sooner
Earlier use of a targeted radionuclide therapy delays metastatic prostate cancer progression when administered as part of a trio of drugs, according to a Phase III clinical trial led by Weill Cornell Medicine, NewYork-Presbyterian, ...
Phys.org / Hidden anatomy of clouds reveals how rain may begin without ice crystals
The initiation of rain in clouds without ice remains one of the largest unsolved mysteries in atmospheric science.
