Tag: "clarifies" at biology news

Scientists Determine 3-D Crystal Structure Of Cancer-Causing Protein

.... 13 Nature . The determination of this structure clarifies earliermodels that sought to explain how the gene, called src , works and offersnew information for designing drug therapies to fight cancers. "These findings help to explain how tinkering with just one protein produceschanges in cell behav...

Birds Sing The 'Story Of Their Lives,' Theorize Duke Biologists

...him. The Duke zoologists said their theory clarifies a largely unansweredquestion until now: how exactly does a female bird benefit from choosing a matebased on his song. Early theories had held that the elaborate male bird song,like other exaggerated male mating traits, was an arbitrarily chosen symbo...

Searching for a genetic needle in a genome haystack

... of Alcoholism: Clinical & Experimental Research clarifies the need for researchers to become more complex in their thinking and approach. "Human alcoholism is a complex disease," said John Crabbe, director of the Portland Alcohol Center and sole author of the study. "The definition of alcoholism is bas...

Deep Green spawns Deep Gene and Deep Time to continue work toward a complete tree of life for the green plants

...group most closely related to the seed plants. "It clarifies one big chunk of the tree," Mishler said. "We haven't completed the whole tree, but these papers one at a time have dealt with all aspects of the green part of the tree of life." The Green Plant Phylogeny Research Coordination Group, initially funded...

Scientists discover how nerve cells move from target to target as they wire up the developing embryo

...ctive site but moves on. The new report in Science clarifies how the axon sifts the information in this "mixed signal," first extracting the attractive information, then dramatically switching its behavior to ignore attraction and only perceive the repulsive information. The new research also establishes that ...

Another transmembrane protein structure solved by Rockefeller scientists

...acKinnon and his colleagues' research also greatly clarifies existing biochemical analyses of the chloride channel, begun 20 years ago. "In a way, the potassium channel is very brash while the chloride channel is more subtle," says MacKinnon. "By working on both channels, we can start to see some themes that n...

Scientists identify 'master' molecule that controls action of many genes

...eople to a variety of cancers." The SCIENCE paper clarifies how one molecule, known as inositol polyphosphate, regulates two chromosome-modifying enzymes inside yeast cells. In the same issue of SCIENCE, a team led by researchers at the National Institutes of Health reports results from test tube experiments ...

Scientists shed new light on the body's internal clock

...ntly to regulate the circadian system. "This study clarifies the role of melanopsin in setting and maintaining the circadian clock," said Bruce O'Hara, senior research scientist at Stanford and co-author of the study published in the Dec. 13 issue of the journal Science. O'Hara noted that without a circadian c...

Link made between dietary folate, genetic instability and bladder cancer risk

...g of the American Association for Cancer Research, clarifies a connection between lower intake of dietary folate and bladder cancer. "The findings may have important implications for cancer prevention in susceptible populations," says Matthew Schabath, a predoctoral researcher working in the Department of Ep...

Blood tests identify patients on dialysis at high risk for death from cardiovascular disease

...yland Medical Center, says the data from the study clarifies the importance and relevance of troponin T to people who are on dialysis. "The major surprise is that these very low levels of troponin carry such important prognostic implications," says Dr. Henrich. Among the benefits Dr. Henrich anticipate...

New book explains plants, medicine

...nc has just published the 812-page book. The book clarifies and classifies the role that plants and herbs play in human health. The work can be a cornerstone of an individual's research and practice in this area, whether it be parsing the properties of Echinacea or St. John's wort, or learning the calcium c...

Study shows how consensus is attained in a noisy world

...inst it," said Amaral. The Northwestern study also clarifies how social norms might quickly be adopted and remain ingrained within society and how unicellular organisms might organize into multi-cellular structures. The researchers show that a simple majority rule approach, in which each unit -- a person or a...

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