Where did the earth's nitrogen come from? Scientists from Rice University show that a primary source of the indispensable building block for life was close to home. The isotopic signatures of nitrogen in iron meteorites indicate that Earth likely collected its nitrogen not only from the region beyond Jupiter's orbit, but also from the dust […]
Study compares low-fat plant-based diets to low-carb animal diets – ScienceDaily
People on a low-fat, plant-based diet ate fewer calories per day, but had higher levels of insulin and blood sugar than those on a low-carb animal-based diet. This was the result of a small but highly controlled study by the National Institute of Health. Led by researchers from the National Institute for Diabetes and Digestive […]
The crater study offers a glimpse into temperatures 3.5 billion years ago – ScienceDaily
Once upon a time, the seasons in Gale Crater probably felt like Iceland. But more than 3 billion years ago, there was no one to focus on. The old Martian crater is the focus of a study by scientists at Rice University that compared data from the Curiosity Rover to locations on Earth where similar […]
Study Shows How a Network of Marine Protected Areas Can Help Protect Antarctic Penguins – ScienceDaily
New research from BirdLife International, the University of East Anglia (UEA) and the British Antarctic Survey shows how a proposed network of marine protected areas can help protect some of the most important areas at sea for Antarctic penguin breeding. The results, published today in the journal Limits of marine scienceshow that assuming all proposed […]
Acidification hampers plankton shell development off the west coast of the US, a study shows – ScienceDaily
Shelled pteropods, microscopic free-swimming sea snails, are widely regarded as indicators of ocean acidification, as research has shown that their fragile shells are susceptible to increasing ocean acidity. A new study published in the journal Scientific reportsshows that pteropods taken off the coasts of Washington and Oregon formed thinner shells than those in offshore waters. […]
Study Identifies Non-Human Primate Model Mimicking Severe COVID-19 Much Like Humans – ScienceDaily
Aged, wild-caught African green monkeys exposed to the SARS-CoV-2 virus developed acute respiratory distress syndrome (ARDS) with clinical symptoms similar to those seen in the most severe cases of COVID-19 in humans The American Journal of Pathology, edited by Elsevier. This is the first study to show that African green monkeys can develop severe clinical […]
According to a new study, the proposed design could cut nitrogen oxide emissions by 95 percent – ScienceDaily
At cruising altitude, airplanes emit a steady stream of nitrogen oxides into the atmosphere, where the chemicals can linger to produce ozone and particulate matter. Nitrogen oxides, or NOx, are a major source of air pollution and have been linked to asthma, respiratory diseases, and cardiovascular diseases. Previous research has shown that the production of […]
Scientists Teamed Up to Study How Myosin Converts Energy into Work – ScienceDaily
A team of biophysicists from the University of Massachusetts Amherst and Penn State College of Medicine addressed the longstanding question of how myosin generates force, the molecular motor responsible for muscle contraction and many other cellular processes. The central question they raised – one of the most controversial issues in the field – was: How […]
Researchers Study the Biosynthesis and Mechanism of Action of Diterpene Glycosides in Wild Tobacco – ScienceDaily
Plants produce poisonous substances to defend themselves against herbivores. In a new study, scientists from the Max Planck Institute for Chemical Ecology in Jena and the University of Münster were able to describe in detail the biosynthesis and the exact mode of action of an important group of defensive substances, the diterpene glycosides, in wild […]
New study reveals long-standing climate mysteries and provides insights into how our planet could change in the future – ScienceDaily
Scientists claim to have found the "missing link" in the process that led to an ice age on Earth. The melting of icebergs in Antarctica is key, according to the Cardiff University team, triggering a series of chain reactions that plunge the earth into prolonged periods of cold temperatures. The results were published in today […]