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Medical Xpress / What your tears could reveal about your brain

A few tears may someday reveal important clues about a person's neurological health. Researchers reporting in ACS Omega developed a low-cost electrochemical sensor designed to detect dopamine, a neurotransmitter involved ...

8 hours ago
Phys.org / Turning up the heat on cancer: Manganese ferrite nanoparticles outperform rivals

Scientists have long known that heat can be used to help fight cancer. But heating tumors and cancer cells is trickier than it sounds. Apply too much heat and patients could get hurt; apply too little or target the wrong ...

8 hours ago
Phys.org / South African fynbos soil delivers a new species of soil bacterium

Microbiologists from Stellenbosch University in South Africa have discovered a previously unknown bacterial genus within the phylum Acidobacteriota. It is the first genus from this phylum to be described from Southern Africa.

2 hours ago
Medical Xpress / Sleep problems in dementia care are linked more to emotional well-being than fear of falling

While fear of falling has long been linked to poor sleep among older adults, new research from George Mason University suggests that emotional well-being may be an even stronger predictor of sleep quality for people with ...

2 hours ago
Medical Xpress / Cellular 'bandages' help rebuild uterine lining after monthly shedding, study finds

For most women past puberty, the uterine lining (endometrium) sheds from the body roughly every month if there is no fertilized egg present. Then, the uterus rebuilds itself to prepare for a potential pregnancy. While this ...

2 hours ago
Phys.org / Space sensor could spot hidden nuclear weapons in orbit with 99% accuracy

In 2024, a U.S. government official warned that Russia could be developing a new satellite designed to carry nuclear weapons into space. The statement followed the launch of a suspicious Russian satellite into low-Earth orbit ...

9 hours ago
Medical Xpress / Scientists uncover how fungi 'blind' the immune system—offering new hope against superbugs

Researchers at the University of Sheffield have discovered that a fungus deadly to people with weakened immune systems can disable a critical defense used by neutrophils, the body's front-line, infection-fighting white blood ...

8 hours ago
Medical Xpress / Young women diagnosed with breast cancer within three years of childbirth may face more aggressive disease

Breast cancers diagnosed during the first three years after childbirth, particularly within the first year, may be biologically more aggressive than similar cancers in women who have never given birth, according to a new ...

5 hours ago
Phys.org / Hidden jet from a 'missing-link' black hole lights up the radio sky

Astronomers using the U.S. National Science Foundation Very Large Array (NSF VLA) have detected an extraordinary burst of radio light from a rare cosmic event in which an intermediate-mass black hole tears apart a star, revealing ...

9 hours ago
Phys.org / Wavelength-multiplexed diffractive optical storage enables massively parallel image retrieval

The explosive growth of data generated by artificial intelligence, cloud computing and modern digital infrastructure is placing increasing pressure on existing information storage technologies. Although magnetic storage systems ...

9 hours ago
Phys.org / Fertilizers carry a hidden cost for soil's crucial microbes. Using less might pay off for farms in unexpected ways

Across North America, in places such as Illinois, Iowa and Texas, farmers are busy growing the crops the world depends on for food, fuel and fiber.

5 hours ago
Medical Xpress / Neuron silence may predict epileptic seizures milliseconds before onset, could lead to seizure reduction device

After the storm comes the calm. But contrary to the famous proverb, the brain's neurons enter a period of calm before the neuronal storm that is an epileptic seizure. An international team of researchers has now demonstrated ...

4 hours ago