Ample evidence of ancient rivers, streams and lakes make it clear that Mars was at some point warm enough for liquid water to flow on its surface. While that may conjure up images of a tropical Martian paradise, new research published in Nature Geoscience throws a bit of cold water on that notion.
New research by a team of European physicists could explain why the universe did not collapse immediately after the Big Bang. Studies of the Higgs particle have suggested that the production of Higgs particles during the accelerating expansion of the very early universe (inflation) should have led to instability and collapse.
An ultra-high-resolution NASA computer model has given scientists a stunning new look at how carbon dioxide in the atmosphere travels around the globe. Plumes of carbon dioxide in the simulation swirl and shift as winds disperse the greenhouse gas away from its sources. The simulation also illustrates differences in carbon dioxide levels in the northern and southern hemispheres.
Scientists at The Scripps Research Institute have identified weak spots on the surface of Ebola virus that are targeted by the antibodies in ZMapp, the experimental drug cocktail administered to several patients during the recent Ebola outbreak. The study provides a revealing 3-D picture of how the ZMapp antibodies bind to Ebola virus.
Testing for ovarian cancer or the presence of a particular chemical could be almost as simple as distinguishing an F sharp from a B flat, thanks to a new microscopic acoustic device that has been dramatically improved by scientists at Argonne National Laboratory. The device, known as a surface acoustic wave (SAW) sensor, detects frequency changes in waves that propagate through its crystalline structure.
Fluke Corp. has introduced the Fluke 1000FLT Fluorescent Light Tester. The fluorescent light tester eliminates the guesswork of maintaining fluorescent lamps by performing the essential tests on lamps in less than 30 secs: lamp tester, ballast tester, non-contact voltage detector, pin continuity tester and ballast discriminator.
Omega Engineering’s RH87 is a digital multifunctional environmental meter which combines the functions of sound level, a luminometer, a relative humidity meter and an anemometer. This CE-compliant product measure sound in dB. It also measures temperature and humidity and light (Lux).
Here’s another reason to pay close attention to microbes: Current climate models probably overestimate the amount of carbon that will be released from soil into the atmosphere as global temperatures rise, according to research from Lawrence Berkeley National Laboratory. The findings are from a new computer model that explores the feedbacks between soil carbon and climate change.
Massachusetts Institute of Technology chemists have developed new nanoparticles that can simultaneously perform magnetic resonance imaging (MRI) and fluorescent imaging in living animals. Such particles could help scientists to track specific molecules produced in the body, monitor a tumor’s environment, or determine whether drugs have successfully reached their targets.
Small pieces of synthetic RNA trigger a RNA interference (RNAi) response that holds great therapeutic potential to treat a number of diseases, especially cancer and pandemic viruses. The problem is delivery: It’s extremely difficult to get RNAi drugs inside the cells in which they are needed.
A team of New York Univ. and Univ. of Barcelona physicists has developed a method to control the movements occurring within magnetic materials, which are used to store and carry information. The breakthrough could simultaneously bolster information processing while reducing the energy necessary to do so.
A key polar bear population fell nearly by half in the past decade, a new U.S.-Canada study found, with scientists seeing a dramatic increase in young cubs starving and dying. Researchers chiefly blame shrinking sea ice from global warming. Scientists from the U.S. Geological Survey and Environment Canada captured, tagged and released polar bears in the southern Beaufort Sea from 2001 to 2010.
Engineers at Oregon State Univ. have identified a method to rapidly prepare frozen red blood cells for transfusions, which may offer an important new way to manage the world’s blood supply. It’s already possible to cryopreserve human red blood cells in the presence of 40% glycerol, but is rarely done because of the time-consuming process to thaw and remove the glycerol from the blood.
The race to make computer components smaller and faster and use less power is pushing the limits of the properties of electrons in a material. Photonic systems could eventually replace electronic ones, but the fundamentals of computation, mixing two inputs into a single output, currently require too much space and power when done with light.
Rice Univ. scientists have invented a novel cathode that may make cheap, flexible dye-sensitized solar cells practical. The Rice laboratory of materials scientist Jun Lou created the new cathode, one of the two electrodes in batteries, from nanotubes that are seamlessly bonded to graphene and replaces the expensive and brittle platinum-based materials often used in earlier versions.