Washington, D.C.— Solar radiation management is a type of geoengineering that would manipulate the climate in order to reduce the impact of global warming caused by greenhouse gasses. Ideas include increasing the amount of aerosols in the stratosphere, which could scatter incoming solar light away from Earth's surface, or creating low-altitude marine clouds to reflect these same rays.
Heavens
Cambridge, Mass., and Washington, D.C. - October 21, 2012 - By tailoring geoengineering efforts by region and by need, a new model promises to maximize the effectiveness of solar radiation management while mitigating its potential side effects and risks. Developed by a team of leading researchers, the study was published in the November issue of Nature Climate Change.
Enhanced local electric fields are predominant in nonlinear optical properties, particularly in surface-enhanced Raman scattering (SERS), which is a sensitive technique used for the detection of trace amounts of chemicals. Analysis of the electric fields around nanostructures indicates that they can provide a basic foundation to obtain greater SERS intensity. Professor ZHANG Zhongyue and his group from the College of Physics and Information Technology at Shaanxi Normal University have proposed a novel scheme to enhance the local electric fields around nanostructures.
Prapiroon is both extra-large and now extra-tropical in the western North Pacific Ocean. NASA's Terra satellite captured an image of the large storm after Prapiroon became extra-tropical.
A comprehensive study of hundreds of galaxies observed by the Keck telescopes in Hawaii and NASA's Hubble Space Telescope has revealed an unexpected pattern of change that extends back 8 billion years, or more than half the age of the universe.
Spectroscopic observations of distant galaxies taken with the 10-meter telescopes at the W. M. Keck Observatory on Hawaii, when combined with images taken by the Hubble Space Telescope plus supercomputer simulations to help interpret the observations, together reveal a major surprise: that a standard assumption about the evolution of galaxies is not correct.
Teenagers and university students are unaware of the negative consequences of alcohol consumption or the chances of developing an addiction as a result. In addition, they start at a younger and younger age and drink more and stronger alcohol according to a study headed by the University of Valencia.
Tropical Storm Maria is moving away from Japan and strong wind shear is pushing its rainfall east of the storm's center, according to NASA satellite imagery.
When the lamp is shattered,The light in the dust lies dead.When the cloud is scattered,The rainbow's glory is shed.
Heavy rainfall returned to Typhoon Prapiroon for a brief time on Oct. 18 when NASA's TRMM satellite passed overhead. Prapiroon is battling strong wind shear and is expected to transition into an extra-tropical storm in the next day.
Hurricane Rafael is no longer a tropical cyclone. The storm merged with a cold front on Oct. 18, but not before NASA's Terra satellite captured an image of the storm when it was in its last day as a hurricane.
The Moderate Resolution Imaging Spectrometer (MODIS) instrument aboard NASA's Terra captured a visible image of Hurricane Rafael in the North Atlantic on Oct. 17 at 1440 UTC (10:40 a.m. EDT). Although Rafael was far from land, its northwestern fringe clouds were brushing Nova Scotia, Canada.
Noise can be distracting, especially to a person trying to concentrate on a difficult task. Studying annoying noises helps architects design better building environments and policy makers choose effective noise regulations. To better understand how short noise bursts affect humans' mental state, researchers from the University of Nebraska – Lincoln played quarter-second-long white noise clips to test subjects as they worked on arithmetic problems.
To transport substances from the site of their production to their destination, the body needs a sophisticated transport and sorting system. Various receptors in and on the cells recognize certain molecules, pack them and ensure that they are transported to the right place. One of these receptors is Sortilin. It is present in the cells of the nervous system, the liver, and the immune system. Studies by Stefanie Herda and Dr. Armin Rehm (Max Delbrück Center for Molecular Medicine, MDC, Berlin-Buch and Charité–Universitätsmedizin Berlin) and the immunologist Dr.
1. Scientists have identified a mutation in a gene that causes patches of very thick skin to appear on the palms and soles of affected people. This skin disorder is related, albeit in a much milder form, to that of the Indonesian 'Tree Man', Dede Koswara . These thick rough skin patches on hands and feet steadily increase in number as a person ages and often coalesce to form larger lesions. In severe cases, these lesions can be painful and debilitating.
PROVIDENCE, R.I. [Brown University] —The cabin of a spacecraft halfway to Mars would be the least convenient place -- one cannot say "on earth" -- for a Salmonella or Pneumococcus outbreak, but a wide-ranging new paper suggests that microgravity and prolonged space flight could give unique advantages to germs. What's a space agency to do? Brown University and Rhode Island Hospital infectious disease expert Dr. Leonard Mermel offers several ideas.