Going where larger, human-piloted planes cannot, a new unmanned aircraft system promises to close a key gap in knowledge for climate modelers seeking to measure and eventually predict exactly what's going on underneath Antarctic Ice Sheets.
Remote waters affect billions of people, shape climate and air chemistry worldwide
Equipped with high-speed, high-resolution video, researchers discovered how the larvae of Atlantic slipper limpets, marine snails, swim, a behavior that determines individual dispersal and ultimately, survival.
The icy Southern Ocean that surrounds Antarctica is about as cold, stormy and inhospitable a body of water as can be imagined. But thanks to the ingenuity of a group of high-school students, their teacher and a miniature video camera on a cable, it has also become a real-life classroom for budding marine engineers.
Scientists find widespread but neglected disease is significant health threat in Botswana
The newest public health threat in Africa, scientists have found, is coming from a previously unknown source: the banded mongoose. Leptospirosis, the disease is called. And the banded mongoose carries it. Leptospirosis is the world's most common illness transmitted to humans by animals. It's a two-phase disease that begins with flu-like symptoms. If untreated, it can cause meningitis, liver damage, pulmonary hemorrhage, renal failure and death.
An innovative tool for teaching the fundamentals of epidemiology, the science of how infectious diseases move through a population, has been developed by an international team of scientists. The tool is helping epidemiologists improve the mathematical models they use to study outbreaks of diseases like cholera, AIDS and malaria.
Results of study on prairie grasslands show differences across the months. Does it matter whether long periods of hot weather, such as last year's heat wave that gripped the U.S. Midwest, happen in June or July, August or September? Scientists studying the subtle effects of heat waves and droughts say that when such weather events happen makes a big difference.
Water is a precious resource many take for granted until there is too little or too much. Scientists and engineers have positioned instruments at the Susquehanna Shale Hills Observatory at Pennsylvania State University to learn much more about the water cycle there. It is one of six Critical Zone Observatories in the United States.
Precipitation and predators key in ecological regulation of infectious disease: Researchers show that just three ecological factors--rainfall, predator diversity and island size and shape--can account for nearly all the differences in infection rates between the eight Channel Islands off the southern coast of California.
A nanomaterial originally developed to fight toxic waste is now helping reduce debilitating fumes in homes with corrosive drywall.