Tag: "describe" at biology news

Researchers find color sensitive atomic switch in bacteria

... Houston and the University of California, Irvine, describe the versatile light-sensing protein at levels of resolution smaller than a nanometer--one billionth of a meter. "High-resolution X-ray crystallography revealed the light-absorbing part of the protein was present in two alternative positions, sugges...

Researchers ID chlorophyll-regulating gene

.... 24 issue of the journal Science, the researchers describe how a gene called phytochrome-interacting factor 1, or PIF1, affects the production of protochlorophyll, a precursor of the chlorophyll used by plants to convert the sun's energy into food during photosynthesis. While a seed germinates under soil,...

New fossil sheds light on old mystery

...shed in Science on September 24, 2004, the authors describe how the neck may have been used to capture prey. "This is important research because we have finally explained the functional purpose of this strange, long neck," said Olivier Rieppel, PhD, a co-author of the Science paper and chair of geology and ...

'Fossil genes' reveal how life sheds form and function

... colleagues Chris Todd Hittinger and Antonis Rokas describe the discovery of a set of seven genes caught in the act of fossilization. In the Japanese yeast, known to scientists as Saccharomyces kudriavzevii, the Wisconsin scientists found the decaying genes that, when intact, are all functionally related and...

Popular Science announces Third Annual 'Brilliant 10'

...er, he is looking for a set of universal laws that describe the rhythms of plant and animal life. The principles that he and his colleagues are discovering appear to reveal deep biological truths about everything from the way cells consume nutrients to the growth rates of trees to how deforestation could affe...

Tips from the Journals of the American Society for Microbiology

...hese molecular approaches to rapidly and precisely describe the consequences of a simple process, milk refrigeration, on the quality of dairy products and its impact on health," say the researchers. (V. Lafarge, J.C. Ogier, V. Girard, V. Maladen, J.Y. Leveau, A. Gruss, A. Delacroix-Buchet. ...

New fruitfly model of diabetes has future implications for pancreatic cell transplantation

... the September 16 issue of Nature, the researchers describe cells that produce a glucagon-like hormone, which are akin to alpha cells in mammals. These two cell types within the pancreatic islets are the main cellular sensors of blood-sugar levels. Together the fly's insulin- and glucagon-producing cells coul...

Adaptive changes in the genome may provide insight into the genetics of complex disease

...coming widely available. In the paper, researchers describe the largest signature of naturalselection discover...nes," Akey said. In the paper, Akey and colleagues describe several additional genes thathave been affected by selection and show a connection to diseases such ...

Genetic map of important tree genes outlined

...udy, along with advances that are expected soon to describe the entire Populus genome DNA sequence, will help scientists find specific genes in a matter of minutes using computational approaches. Such discoveries would have taken decades or centuries prior to these databases, Strauss said. "Once you know a l...

Other highlights in the September 1 JNCI

... Ohio State University in Columbus, and colleagues describe the use of a novel flow cytometric assay to measure activation by phosphorylation of the transcription factor STAT1 in response to immunotherapy. The researchers suggest that this new method may be able to help determine the optimal dose of interfero...

Highlights of American Chemical Society national meeting in Philadelphia, Aug. 22-26

...roaches used and the costs involved. She also will describe lessons learned, both with respect to responding to possible future bioterrorism attacks and to preparing for and protecting against such attacks. ( CHAS 11 , Monday, Aug. 23, 2:25 p.m., Loews, Lescaze, during the symposium, "Facility Contamination a...

Congress to fund Sequim-based coastal security research effort

...homeland security agencies can better identify and describe potential terrorism targets. Additionally,they will develop and improve ocean transport computer models that can analyze where a signature came from and predict where it's going. PNNL scientists will draw upon existing technologies and capabilities a...

NIH roadmap for biomedical research focus of chemists at American Chemical Society meeting

...e worlds largest scientific society. Dr. Berg will describe how chemists can work with biologists to impact progress in medical research by participating in the NIH roadmap project. The NIH Roadmap for Medical Research is a framework of priorities designed to find new pathways to discovery, stimulate interdis...

Sweet success in targeting sugar molecules to cells in living animals

...ch reported in Nature, Bertozzi and her colleagues describe the first use of their cell-surface engineering technique in living animals. Previously, they had only applied it to cultured cells. They injected the azido sugar into mice and used the Staudinger ligation to attach a phosphine molecule that carried ...

Mercury in the environment

...on by providing reliable scientific information to describe and understand the Earth; minimize loss of life and property from natural disasters; manage water, biological, energy, and mineral resources; and enhance and protect our quality of life. To receive USGS news releases go to www.usgs.gov/public/list_...

Applied Mathematical Models in Human Physiology

...umptions and methodologies. The remaining chapters describe six different models of the cardiovascular and pulmonary system. Each model is introduced by a case study and can be studied individually. This book serves as an excellent introduction for researchers in the study of blood flow in the heart and ca...

Leukemia stem cells identified by Stanford researchers

... New England Journal of Medicine , is the first to describe these cells in chronic myelogenous leukemia. This is also the first time researchers have identified which cell becomes cancerous, transforming from a normal healthy cell to a cancer stem cell. Jamieson and her team working with Irving Weissman, MD, ...

Avalanche of change

...unt St. Helens before and after May 18, 1980" will describe the link between the reshaped geophysical landscape and the plants and animals living on it. The session will also delve under the surface in "Life in the changing belowground during succession on Mount St. Helens," which will be presented by Michael...

Fundamental change to Immunology 101

...y steps in T-cell development should follow." They describe their findings in the current advance online publication of Nature Immunology. Hematopoietic stem cells (HSCs) are the ultimate progenitors of all blood cell types, from platelets and red blood cells (erythrocytes) to immune cells like T cells...

Where the sage-grouse roam

...he Great Basin Ecosystems. Steven Knick will describe how he and his USGS colleagues, Matthias Leu and T...ation and land management. David Pyke (USGS) will describe the results of a four-state study of Bureau of Land Management wildfire rehabilitation projects in h...

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