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Phys.org / Math model reveals how life may have switched on from Earth's primordial soup
Isolating the first spark of life on Earth is a matter of biology, geology, and chemistry—but it's also an amazing math problem. At least, that's how Varun Varanasi viewed it when he was a Yale undergraduate. The question, ...
Phys.org / New research on cellular redox reactions sheds light on the path of neurodegenerative diseases
The mechanics of the onset of cancer or neurodegenerative disorders like Alzheimer's disease or ALS remain a mystery. Scientists associate these diseases with an increase in unstable molecules called reactive oxygen species ...
Phys.org / Video shows that sunbirds suck, while hummingbirds don't
Two unrelated groups of nectar eaters, hummingbirds and sunbirds, have evolved different techniques to slurp the sweet liquid from flowers. The tongue suctioning employed by sunbirds is unique among vertebrates, according ...
Phys.org / A tabletop ring of atoms brings the universe's doomsday vacuum collapse into the lab
Physicists in China have simulated the effect of "false vacuum decay": a phenomenon believed to play out constantly in the seemingly empty expanses of space, and which one theory even suggests could bring an abrupt end to ...
Phys.org / Date palm waste yields bio-oil, unlocking energy use for 150 million trees
Researchers have developed a method to extract bio-oil from the surface fiber waste of date palm trees, an abundant, low-cost, and sustainable biomass resource generated by an estimated 150 million date palm trees worldwide. ...
Phys.org / These nanotweezers grab thousands of tiny cell packets in seconds and expose their hidden cargo
Justus Ndukaife, associate professor of electrical and computer engineering and Chancellor Faculty Fellow, and his team have developed next generation nanotweezers that better analyze extracellular vesicles and aid in unraveling ...
Phys.org / Vitamin B12 drives inherited behavioral changes across generations in roundworms
It has long been known that environmental conditions can shape how traits are inherited, a phenomenon known as transgenerational epigenetic inheritance. However, the molecular signals responsible for encoding this biological ...
Phys.org / In Arizona's desert, tiny ants turn into living hygienists, climbing inside bigger ants' mandibles and cleaning them
Ants are known for many things. They fight, bite and sometimes compete for every crumb. We can now possibly add cleaning services to that list, according to a study published in the journal Ecology and Evolution.
Phys.org / Museum fossil reveals that extinct giant echidnas once roamed Australia
Paleontologists have used an Ice Age fossil found 120 years ago in an underground cave to reveal that extinct giant echidnas roamed southeastern Australia during the Pleistocene Epoch, filling a major knowledge gap in the ...
Medical Xpress / Radiation may spark tissue changes that help triple-negative breast cancer return
While radiation therapy is an effective tool to destroy cancer cells, a new study from Vanderbilt researchers suggests that in an aggressive form of breast cancer, it may also trigger a protective cellular response that may ...
Phys.org / From ship wakes to soft tissues: Exploring fluid and solid surface-wave physics
A new study by scientists in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) shows that when a pressure disturbance moves across an ultrasoft elastic material, such as a gel or a biological tissue, ...
Phys.org / Beneath this cemetery, 5.5 million wild bees form a giant underground city vital to spring pollination
To save money, Rachel Fordyce parked her car for free at Ithaca's East Hill Plaza and walked through East Lawn Cemetery to her job as a technician in an entomology lab on Cornell's campus. One spring day in 2022, she walked ...
