Tag: "describe" at biology news

Articles on protected area management published in BioScience

...troductory article and four in-depth articles that describe and evaluate assessment systems that can be used to identify the most important threats facing protected areas. These include direct threats to the natural and cultural resources the areas are intended to protect, inadequate resources, and institutio...

Laboratory 'theme park' re-creates RNA world for study

...dmit that, like the proverbial blind men trying to describe an elephant, each approach may have captured only one angle of life's origins. "We'll never really know the whole story of how life got started," says Bartel, "but every insight that we can discover is important. This is one of the most significant a...

Scripps team part of collaboration that reveals first ecological genomic 'blueprints'

...San Diego, led one of the discoveries. The papers describe the genomes of Synechococcus and Prochlorococcus, tiny organisms that account for up to two-thirds of the carbon dioxide "fixation" (the conversion of carbon dioxide into organic compounds during photosynthesis) in the oceans and are key players in m...

Weizmann Institute scienists find that stem cells in the bone marrow become liver cells

... the signaling molecules HGF, MMP-9 and SDF-1 and describe the homing process. HGF is involved in liver cell development and, in irregular cases, can play a role in cancer metastasis. MMP-9 assists cell migration from the blood system into various types of tissue, including liver tissue. SDF-1 is a molecule ...

Drought

... Natural Resources Research Institute in Minnesota describe their endeavor as an opportunity "to examine the vulnerability of aquatic resources in both public and private protected areas." Other regions to be explored during this symposium include allocation of water resources in South Africa, effects of ri...

Pandoras box of pathogens

...kova, of the University of California--Davis, will describe her research team's hypothesis that nutrient-enriched runoff from agricultural lands and human settlements in Belize, Central America, leads to more productive marsh habitat for a particular species of mosquito. Anopheles vestitipennis is a more eff...

Gene test could reduce unnecessary treatment for women with breast cancer

In this week's issue of THE LANCET, US researchers describe how gene expression profiles could determine whether or not women with breast cancer would respond to docetaxel treatment. Women who are likely to be resistant to the drug could be given alternative treatment. Chemotherapy or hormonal treatment afte...

Researchers identify protein modules that 'read' distinct gene 'silencing codes'

...enes & Development paper, Allis and Khorasanizadeh describe how another silencing protein, called Polycomb, binds to methylated Lys27. Both the HP1 and Polycomb chromodomains, although very similar in structure and composition, differ by a few amino acids. This difference ensures that HP1 only docks to a meth...

Salt controls size of DNA structures, could improve gene therapy

...D. students Christine Conwell and Igor Vilfan also describe using the positively charged, inorganic molecule hexammine cobalt (III) to condense a DNA molecule containing a specially designed sequence. The synthetic sequence causes a region of the DNA molecule to bend into two loops of 25 nanometers each in di...

Gene helps determine whether the stresses of life push you into depression, Science study says

...ibilities. A team of psychologists and geneticists describe these findings in the 18 July issue of the journal Science published by AAAS, the science society. Variations in a region of DNA next to the serotonin transporter gene help to determine whether stressful events will make you depressed. Serotonin is a...

New opportunities for accelerating the conquest of human cancer

...on and progression is a goal within our grasp." To describe how the genetics revolution -- and other scientifi...-Farber Cancer Institute. The panel is expected to describe studies inspired by the genetics revolution, and new molecular insights into the processes that resu...

Science historians ponder naming 'enemies' in science literature

...ience and its use of war and conflict metaphors to describe ecological dynamics involving introduced species. ...se of the metaphorical phrase "natural enemies" to describe predator/prey and other similar inter-species ecological relationships. Though the metaphor is limit...

Researchers find a new way to potentially thwart anthrax

...of Microbiology and graduate student Marcus Jones, describe a "quorum-sensing system" in anthrax that is a typ...or anthrax. The School of Medicine researchers now describe such a system in a study appearing in the July issue of the journal Infection and Immunity, publishe...

Researchers engineer low-cost hydrogen catalyst

...d graduate students George Huber and John Shabaker describe testing more than 300 materials to find a nickel-tin-aluminum combination that reacts with biomass-derived oxygenated hydrocarbons to produce hydrogen and carbon dioxide without producing large amounts of unwanted methane. "Platinum is very effectiv...

New ovarian cancer hope for women

...e July 1 issue of Cancer Research, the researchers describe a molecule, HE4, associated with ovarian cancer cells. Because the molecule is secreted readily into the blood, its presence should be detectable when simple and inexpensive clinical blood tests are developed. "Many cancers have a high cure rate i...

Seeking the cause of a mysterious whale disease

...r. Bossart, who was the first, with colleagues, to describe the disease in 1985. The list of possibilities ranges from nutrient deficiency and environmental toxins to genetic mutations and infection. From just January to March of this year there were 20 dwarf and pygmy sperm whale strandings in the southea...

'Mimics' may open screen(ing) door to GPCR drugs

...ournal Biochemistry, Kevin D. Ridge and co-authors describe a new approach for structurally characterizing functional regions of the rhodopsin protein that reside outside of the membrane. Assembly of these regions mimics how the receptor interacts with binding molecules called G-proteins. Ridge is a research ...

Molecular fingerprint predicts HIV-associated dementia

...of dementia. Studies need to be done to more fully describe the protein profile for HAD, says Dr. Gendelman. "Our results are encouraging, but proteomics is still in its infancy. We've taken the first step in a very long journey to find better ways to diagnose HAD and other diseases." The researchers have f...

Harry Potter and the Ecuadorian flowers

...ng biodiversity, plant taxonomists investigate and describe what is known to exist and go out in the field to look for new species. Struwe and Grant have been exploring the shrinking rain forests of South America, most recently the tropical, mountainous Andes region in southern Ecuador. "Much of the original...

Seven CD-ROM global GIS data set available from AGI

...on by providing reliable scientific information to describe and understand the Earth; minimize the loss of life and property from natural disasters; manage water, biological, energy and mineral resources; and enhance and protect our quality of life....

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