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Phys.org / How an ancient seafloor turned Arkansas into 'Sharkansas,' a shark fossil hotspot
Most shark fossils are just teeth—their cartilage skeletons usually decay long before they can fossilize. But in northwestern Arkansas, a series of geological sites known as the Fayetteville Shale has preserved dozens of ...
Medical Xpress / Fiber-optic tear test spots LCN1 and VEGF together for diabetic retinopathy
Tear fluid is emerging as an attractive source of diagnostic information because it can be collected easily and noninvasively. Changes in tear composition often reflect underlying physiological conditions, making tears a ...
Phys.org / Physicists develop new protocol for building photonic graph states
Physicists have long recognized the value of photonic graph states in quantum information processing. However, the difficulty of making these graph states has left this value largely untapped. In a step forward for the field, ...
Phys.org / Key yeast enzyme discovered after 15 years reveals how sugar-donor DLOs are regulated
After a long search, RIKEN researchers have identified an enzyme crucial for keeping lipid-linked sugar chains in check in yeast cells. This finding, published in the Journal of Cell Biology, reveals a novel regulatory mechanism ...
Phys.org / Where'd you get that frog? Study traces illicit online amphibian trade
Keeping amphibians as pets offers hobbyists an opportunity to connect with the non-human world, often increasing interest in conserving animals in the wild. But there's a dark side to the amphibian trade, according to a study ...
Phys.org / Climate change is driving rising agricultural water use in Central Asia
Even as farmers shift toward less water-intensive crops, climate change is pushing agricultural water consumption upward in Central Asia. A new study by IAMO researchers shows that rising temperatures and atmospheric water ...
Phys.org / Living in space can change where your brain sits in your skull: New research
Going to space is harsh on the human body, and as a new study from our research team finds, the brain shifts upward and backward and deforms inside the skull after spaceflight.
Phys.org / Cape Town's wildflowers are a world treasure: Six insights from a new checklist
Cape Town, in South Africa, is famous for its dramatic mountains and coastline, but its greatest treasure lies in the plants that carpet its slopes and valleys. Table Mountain National Park and its surrounds are home to 2,785 ...
Phys.org / What honey bee brain chemistry tells us about human learning
A multi-institutional team of researchers led by Virginia Tech's Fralin Biomedical Research Institute at VTC has for the first time identified specific patterns of brain chemical activity that predict how quickly individual ...
Phys.org / Non-biologic processes don't fully explain Mars organics collected by Curiosity, researchers say
In a new study, researchers say that nonbiological sources they considered could not fully account for the abundance of organic compounds in a sample collected on Mars by NASA's Curiosity rover. The paper is published in ...
Phys.org / Mira A ejects seven Earth masses, forming a heart-shaped cloud 300 light-years away
Just in time for Valentine's Day, space offers a heart-shaped greeting. The star Mira A, about 300 light-years from Earth, has released material into an expanding cloud of gas and dust resembling a heart. Both the amount ...
Medical Xpress / Human stem cell lines offer new resource to help study HIV progression
King's College London researchers have created a unique collection of human stem cell models that could help to uncover why HIV leads to different outcomes in different people. The research was carried out by Dr. Nathalia ...
