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Phys.org / A backup fluoride defense in soil bacteria could aid greener chemical production

Researchers at the University of Tartu have discovered a mechanism in bacteria that helps them adapt to fluoride, which is toxic to most organisms above relatively low threshold concentrations. Their discovery may represent ...

11 hours ago
Phys.org / Cretaceous beetle fossil reveals early evolution of firefly sensory and signaling systems

Scientists have discovered a remarkably well-preserved 100-million-year-old beetle fossil that provides a rare glimpse into the evolution of the intricate sensory and communication systems used by fireflies and their relatives ...

11 hours ago
Phys.org / Magnetic nanoparticles remove forever chemicals from water

PFAS, otherwise known as forever chemicals, have become commonplace in numerous everyday and industrial products. At the same time, they are some of the most problematic pollutants of our times: They are extremely durable, ...

13 hours ago
Medical Xpress / Nicotine levels are rising among teens who vape, new study warns

Vape devices are flooding teens' bodies with increasingly heavy doses of addictive nicotine, a new study finds. Average urine levels of a key nicotine metabolite, cotinine, nearly tripled among teenagers over a period of ...

6 hours ago
Medical Xpress / Chromosome-protecting protein may help explain muscle repair and the rarity of muscle cancers

A protein best known for protecting the ends of chromosomes also helps muscle stem cells preserve their identity and repair damaged tissue, according to a new study from researchers at the Perelman School of Medicine at the ...

12 hours ago
Phys.org / Fish pathogens once limited to Asia and US emerge in Brazilian farms

For the first time in Brazil, scientists have identified the presence of bacteria that cause columnaris disease, a serious disease in farmed fish intended for human consumption. Previously, different species of the genus ...

8 hours ago
Phys.org / Modified cell vesicles trigger 'lipid counterstorm' against lung inflammation in mice

The COVID-19 pandemic highlighted severe consequences of unchecked respiratory disease, including cytokine storms. This phenomenon affected many COVID-19 patients and is a potential side effect of many other diseases involving ...

12 hours ago
Medical Xpress / Microglia reveal sex-specific brain recovery mechanism after ketamine anesthesia

During ketamine anesthesia, the brain's nerve cells fall silent—as consciousness returns, they begin to reconnect. For the first time, researchers at the Institute of Science and Technology Austria (ISTA) have shown that ...

12 hours ago
Phys.org / Diamond's newfound defect may tame vibrations that hinder quantum light sources

Researchers in the Department of Electrical and Computer Engineering at the University of Illinois Urbana-Champaign have discovered a new type of quantum light emitter in diamonds that could help overcome a number of challenges ...

14 hours ago
Phys.org / New method flags hurricane rapid intensification up to five days ahead

The rapid intensification of a hurricane ranks among the most dangerous weather events on Earth. Storms such as Hurricane Michael, which crashed ashore in the Florida Panhandle with winds of 160 mph (about 257 km/h), and ...

14 hours ago
Medical Xpress / Newly identified mitochondrial plaques provide potential therapeutic target for Alzheimer's disease

Alzheimer's disease is a devastating neurodegenerative disorder affecting millions of people worldwide. Scientists have long known that two hallmarks of the disease are beta-amyloid (Aβ) plaques and neurofibrillary tangles, ...

14 hours ago
Tech Xplore / Ion pumping platform simultaneously cleans salty wastewater and recovers valuable metals

Industrial wastewater from electronics manufacturing, metal processing and other sectors often contains two difficult pollutants at once: high levels of salt and toxic heavy metals. Current treatment methods typically address ...

14 hours ago