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Medical Xpress / Is vitamin D associated with lower levels of Alzheimer's biomarkers?
Having higher levels of vitamin D in the blood in middle age is associated with lower levels of tau protein in the brain, which is a sign of dementia, years later, according to a study published in Neurology Open Access. ...
Phys.org / Human sperm may get lost in space
Having a baby in space may require a bit more direction, with new Adelaide University research revealing the navigational abilities of sperm are negatively impacted by a lack of gravity. Researchers at the University's Robinson ...
Phys.org / What's driving Salt Lake City's downward emissions trends?
Emissions of two major pollutants have steadily decreased on Salt Lake City roads over the past two decades, while levels of carbon dioxide emissions, a related gas blamed for climate change, remained steady, according to ...
Phys.org / Animals are powerful landscape engineers shaping the Earth's surface, global study finds
Wild animals are not just inhabitants of the natural world. Many also act as natural landscape engineers, reshaping Earth's surface as they burrow, feed, and build shelters that move soil and sediment across ecosystems. From ...
Tech Xplore / Light bends perovskite crystal lattice, opening way to new devices
New types of semiconductor devices that respond to light could be possible using materials called perovskites, according to a new study by researchers at the University of California, Davis. The work, published in Advanced ...
Phys.org / Quantum researchers engineer extremely precise phonon lasers
When lasers were invented in the 1960s, they opened new avenues for scientific discovery and everyday applications, from scanners at the grocery store to corrective eye surgery. Conventional lasers control photons—individual ...
Medical Xpress / New Zealand study finds a significant rise in sepsis cases
Hospital admissions for sepsis rose significantly between 2000 and 2019, with infants, people over 70, Māori and Pacific peoples and those living in areas of deprivation at much higher risk of developing the condition, researchers ...
Medical Xpress / Bacterial-like vaccine cues could help extend immunity against evolving viruses
Researchers at the University of Wisconsin School of Veterinary Medicine have identified a possible way to make longer-lasting vaccines for respiratory viruses like influenza and the coronavirus that causes COVID-19. The ...
Phys.org / Graphene 'leaf tattoo' sensor tracks plant hydration in real time
Is your houseplant thirsty? Are crops getting enough water? Is a forest at high risk of wildfire? Leaf health can answer all these questions, and researchers at The University of Texas at Austin have developed new technology ...
Tech Xplore / Photonic chip packaging can withstand extreme environments
Researchers at the National Institute of Standards and Technology (NIST) have developed a new way to package photonic integrated circuits—tiny chips that convey information using light instead of electricity—so they can survive ...
Phys.org / A global butterfly index could advance insect conservation worldwide
About 70% of the species on Earth are insects. They are fundamental components of most ecosystems: they comprise half of the biomass on the planet, pollinate flowers, decompose dead organic matter and play multiple roles ...
Medical Xpress / Vaping is likely to cause cancer, say new findings
Nicotine-based vapes (e-cigarettes) are likely to cause cancers of the lung and oral cavity, according to a new study led by UNSW Sydney and published today in Carcinogenesis. The study is titled "The carcinogenicity of e-cigarettes: ...
