ESA to host Atmospheric Science Conference
...use of satellite instruments for remote sensing of trace gases in the stratosphere and troposphere, clouds,...solution horizontal and vertical cross-sections of trace chemicals, dust particles and clouds, stretching from ground level to a hundred kilometres in the ai...No-mow grass may be coming to your yard soon
...sely planted fields. Vert and Chory's work helps trace a molecular pathway that is ancient -- perhaps more than a billion years old -- in both plants and animals. "Remarkably, steroid biosynthetic enzymes are highly conserved from plants to metazoans (animals), suggesting that the use of steroids as horm...Salk research challenges concept that motion perception is all black and white
...whose unique infectious properties allowed them to trace neural circuits in reverse, from MT back to the distinct M and P cells that connect to V1. This technique, known as trans-synaptic tracing, showed that the M and P pathways merge before they enter the MT area, on a specialized population of neurons i...Nature can help reduce greenhouse gas, but only to a point
... because of their dependence on nitrogen and other trace elements. These elements are essential to photosynthesis, whereby plants remove carbon dioxide, a greenhouse gas, from the air and transfer carbon back into the soil. "What our paper shows is that in order for soils to lock away more carbon as carbon...Satellite instrument helps tackle mysteries of ozone-eating clouds
...map the atmospheric concentrations of more than 20 trace gases, including ozone as well as the pollutants that attack it. "This has been the first evidence for the existence of NAT PSCs on a large scale," Hpfner said. NAT particles, which contain three molecules of water and one molecule of nitric acid, ...New Arctic fossils fill evolutionary gap between fish and limbed animals
... For about a century, scientists have been able to trace the broad outline of the millions-of-years-long transition of lobe-finned fish to limbed animals (tetrapods). The new find, however, is the most compelling evidence yet of an animal that was on the verge of the transition from water to land. "The fin...UC Davis, Lawrence Livermore researchers
...ore recently with accelerator mass spectrometry to trace the path of drugs and their metabolites throughout the body. But coming up with a simple test using 14C for vitamin B12 was anything but easy, say the researchers. "I knew it was technologically possible to create 14C-B12 and use it to measure levels...Story tips from the Department of Energy's Oak Ridge National Laboratory, March 2006
...s are testing the GC-MS sensor's ability to detect trace amounts of dimethyl methylphosphonate (DMMP), a nerve gas simulant. Miniature GC-MS sensors could be worn by warfighters to help them detect a very-low-level chemical threat and warn them to evacuate or remediate the contaminated area in time to surv...Women's health findings presented at national conference
...icroPET imaging to evaluate biomarkers employed to trace the action of amniotic fluid infection in an animal model. Tracer molecules attached to immune system cells, called macrophages, that are part of the body's inflammatory response, allowed the researchers to see evidence of inflammation in infected an...Detection of DNA on nanotubes offers new sensing, sequencing technologies
...ith DNA could be placed in living cells and detect trace amounts of harmful contaminants. In a paper accepted for publication in the journal Nano Letters, and posted on its Web site, the researchers report they have taken the technique a significant step further. "We have successfully demonstrated the opti...Wildlife researchers identify impacts of contamination in amphibians
... the contaminated site. "Selenium is a fascinating trace element," says Hopkins. "Although it is nutritionally required as a micronutrient, there's a fine line between its essentiality and toxicity. We found that females from areas near the power plant accumulated astonishingly high concentrations of sele...UCLA scientists find male gene in brain area targeted by Parkinson's
...ected discovery, Vilain's team became the first to trace the SRY protein to a region of the brain called the substantia nigra, which deteriorates in Parkinson's disease. Parkinson's disease occurs when cells in the substantia nigra begin to malfunction and die. These brain cells produce a neurotransmitter...Marine mammals are on the frontline of failing ocean health
... This allows researchers to more easily detect and trace the disease and calls attention to the flow of pa...ent in the ocean that scientists are using them to trace the diets and travels of marine mammals. This work also sheds light onto potential human health eff...Phytoplankton bounce back from abrupt climate change
...d alkalinity, and changes in nutrient patterns and trace elements. "In every case, changes in surface habitats resulted in transient plankton communities," Bralower told attendees at the 2006 annual meeting of the American Association for the Advancement of Science. "Although we have a poor understanding o...Early California: A killing field
...e Baywatch fun-in-the-sun culture all of this may trace a link to early historic descriptions of the land that now appear to be worlds apart from pre-European conditions." Himself a product of sunny California, Broughton grew up in rural Camarillo in the southern part of the state, "collecting butterflie...NJIT chemists cook up new strain of carbon nanotubes
...tical techniques and sensors to discover low level trace elements in air, water and soil. His projects inc...on and methods for continuous, on-line analysis of trace levels of organic pollutants in air and water. These methods range from using gas chromatography or...UF scientists trace origin of shark's electric sense
...rrent research, scientists used genetic markers to trace neural crest cells. "Dye labeling would be interesting and further test the idea that electroreceptors contain neural crest cells," Cohn said....DNA-wrapped carbon nanotubes serve as sensors in living cells
...h DNA can be placed inside living cells and detect trace amounts of harmful contaminants using near infrared light, report researchers at the University of Illinois at Urbana-Champaign. Their discovery opens the door to new types of optical sensors and biomarkers that exploit the unique properties of nanop...In bacterial diversity, Amazon is a 'desert'; Desert is an 'Amazon'
... dioxide. They also give off most of the important trace gases in our atmosphere like methane. "Given this importance, it was really surprising to us that no one had tried to systematically explore the pattern of diversity of soil bacteria on a continent-wide scale. Part of the reason is such a survey is t...