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Dialog / Liquid ripples rewrite 130-year-old biological classic: New reflections on the lock-and-key model
This April, when the spring breeze carried the formal acceptance notice of our paper by the Journal of the American Chemical Society to my desk, my thoughts instantly drifted back to the late Phil Geissler. A legendary physical ...
Phys.org / Our ovary blueprint is ancient, according to sea stars
At first glance, bat sea stars, the nubbly, orange, many-footed creatures often found on the seafloor, seem about as far from humans as one can get. Appearances can be deceiving, however. Scientists have found evidence showing ...
Phys.org / Although woodland salamanders have looked the same for millions of years, their physiology has evolved rapidly
For her doctoral dissertation, Yale's Nathalie Alomar decided to study a small amphibian that appeared to have eluded the forces of evolution. She found that there is more to its evolution than meets the eye.
Phys.org / New findings challenge idea that human bodies simply got bigger and bigger over time in a steady line
The biggest jump in body size among our ancestors happened around 2–2.5 million years ago, with the appearance of Homo rudolfensis or Homo erectus/ergaster, rather than gradually across the whole human family tree.
Medical Xpress / Steep drop in metabolic coenzyme could trigger preterm labor
Declining placental concentrations of a molecule that plays a key role in metabolism appear to trigger the end of pregnancy and hasten labor and delivery, suggesting a study co-led by researchers at UT Southwestern Medical ...
Phys.org / Hot Jupiter endures star-powered barbecue
You're the grillmaster at the annual family Fourth of July barbecue, and you're sweating bullets standing over the grill in the sweltering summer heat. You're trying to stay cool by pressing a cold beer can to your forehead, ...
Medical Xpress / Clues to psilocybin's epigenetic effects on people with alcohol use disorder
Some psychedelics, psychoactive substances that alter people's mood, perceptions and mental processes, were recently found to be promising alternative treatments for some mental health disorders. The substance that has attracted ...
Phys.org / Zebrafish and fruit flies share the same internal compass mechanism in a case of convergent evolution
Even in darkness, many animals retain a sense of orientation because their nervous system sustains a memory of heading encoded by the activity of head-direction (HD) cells. Animals continuously update this internal compass ...
Tech Xplore / Ultraefficient chip could help tiny robots traverse complex environments
A new chip developed by MIT researchers could help tiny, low-power UAVs avoid obstacles as they zip around tight corners inside an industrial HVAC system to check for gas leaks. The chip allows small autonomous robots and ...
Medical Xpress / Immunotherapy may temporarily restore fertility in patients of premature menopause
A pilot study from Karolinska Institutet shows that immunotherapy may enable the stimulation of egg maturation in women with autoimmune POI (premature ovarian insufficiency)—a condition that usually leads to infertility. ...
Tech Xplore / Seaweed-based ingredient helps turn dirt into 3D-printed walls
An ingredient that gives ice cream a creamier texture could make natural earthen materials like clay and sand easier to 3D print into durable structures, according to new research led by scientists at the University of Colorado ...
Medical Xpress / France detects first Ebola case outside Africa in current outbreak
France on Wednesday announced the first confirmed case of Ebola identified on its territory: a doctor who had flown back from the Democratic Republic of Congo, which is fighting a major outbreak.
