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Tag: "competitive" at biology news

For diseases, when it comes to sharing a home, only close relatives will do

...ring resources with close relatives and being more competitive towards non-relatives." According to current evolutionary theory, the competition among pathogen strains determines why some diseases cause very severe symptoms, "so it is crucial to understand when and how this competition occurs within the hosts,...

Impressive new Impact Factors for BioMed Central's open-access journals

...in the top five of research journals in the highly competitive Genetics and Heredity field, and the 4th most cited journal in the Biotechnology & Applied Microbiology. Matthew Cockerill, BioMed Central's Publisher, comments, "Genome Biology's impressive Impact Factor is evidence of BioMed Central's commitmen...

DNA: Bacteria's survival ration

...es, the bacteria cannot consume DNA and lose their competitive advantage. "The gene family is found in many other species," the authors reported, "suggesting that the use of DNA as a nutrient may be a widespread phenomenon." The concept of nutritional competence could have applications to medical research, as ...

Discovery may speed forest biotechnology

...ogical concern, as trees bearing them would have a competitive disadvantage when growing with wild forest trees, and thus would not spread to any significant degree. It also appears that the CO/FT genetic combination is critical to help trees adapt to local conditions, the researchers found. They studied aspen...

MIT researchers build tiny batteries with viruses

...adually being improved and may someday even become competitive as the price of oil escalates. "The nanoscale materials we've made supply two to three times the electrical energy for their mass or volume, compared to previous materials," the team reported. The researchers' work was spurred by "growing evidence ...

Georgia Tech accelerates drug discovery with new IBM supercomputing cluster

...rld-class scholars will raise its presence in this competitive market and attract some of the nation's brightest students to join our research team to advance medicines that will improve the well-being of people everywhere." BellSouth worked closely with Georgia Tech and IBM to design a unique, reliable hosti...

Lactic acid not athlete's poison, but an energy source - if you know how to use it

...urned for energy. "The world's best athletes stay competitive by interval training," Brooks said, referring to repeated short, but intense, bouts of exercise. "The intense exercise generates big lactate loads, and the body adapts by building up mitochondria to clear lactic acid quickly. If you use it up, it doe...

University of Arizona plant scientists to unravel maize genome

...) chose the UA team and its partners from a highly competitive pool of applicants including the Broad Institute a...ciences. "It further exemplifies our exceptionally competitive position inattracting national funding for key areas such as genomics -- an invaluableasset for Ariz...

Divergent mating systems and parental conflict as a barrier to hybridization in flowering plants

...egard to parental conflict. They contend that this competitive imbalance can explain a common pattern of unilateral incompatibility, in which pollen from self-incompatible populations can successfully fertilize ovules of self-compatible individuals, but the reciprocal cross fails. Since both pre- and post-zygoti...

Human brain is still evolving

...accumulated presumably because they conferred some competitive advantage. The evidence that Microcephalin and ASPM were evolving under strong natural selection in the lineage leading to humans led Lahn and his colleagues to consider exploring whether these two genes are still evolving under selection in modern ...

Microbe has huge role in ocean life, carbon cycle

...tain 500,000 of these cells. "The ocean is a very competitive environment, and these bacteria apparently won the race," said Stephen Giovannoni, an OSU professor of microbiology. "Our analysis of the SAR11 genome indicates that they became the dominant life form in the oceans largely by being the simplest." Th...

Lance Armstrong through a physiological lens: hard training boosts muscle power 8%

...e in 1991 based on cross-sectional observations of competitive cyclists." This change in muscle type may account for the apparent ease with which Armstrong seems to be pedaling, albeit at a high cycling cadence. Whereas the lab tests were held constant at 85 revolutions per minute (rpm) for comparison purposes...

Bacteria use host's immune response to their competitive advantage

...t target one microbe might inadvertently alter the competitive interactions among other species present. ### Citation: Lysenko ES, Ratner AJ, Nelson AL, Weiser JN (2005) The role of innate immune responses in the outcome of interspecies competition for colonization of mucosal surfaces. PLoS Pathogens 1(1): e1....

Tufts researchers shine light on firefly mysteries

...uitflies, males' efforts to maximize their sperm's competitive ability have led to the evolution of chemicals produced by their reproductive glands. These chemicals kill the sperm of other males that have mated with the same female but they are also toxic to the female -- hence conflict." In a collaborative res...

'Bionic' arm gives amputee sense of touch

...arch is the fifth most cited journal in the highly competitive respirology field. The impact factors, which are calculated by ISI, look at citations in 2004 of articles published in the journals in the period 2002-2003. According to Dr Matthew Cockerill, Director of Operations at BioMed Central, "These latest i...

Open Access journals get impressive impact factors

...arch is the fifth most cited journal in the highly competitive respirology field. The impact factors, which are calculated by ISI, look at citations in 2004 of articles published in the journals in the period 2002-2003. According to Dr Matthew Cockerill, Director of Operations at BioMed Central, "These latest i...

New design : complete

...ssor of internal medicine at UT Southwestern, said competitive runners are less likely to suffer from hyponatremia. "Those who are running to finish the race very fast don't have time to drink a lot of water along the way," Dr. Levine said. "Those who are not running the race competitively tend to stop at every...

Bush, Cheney and Rumsfeld are now species of slime-mold beetles -- but strictly in homage

...ssor of internal medicine at UT Southwestern, said competitive runners are less likely to suffer from hyponatremia. "Those who are running to finish the race very fast don't have time to drink a lot of water along the way," Dr. Levine said. "Those who are not running the race competitively tend to stop at every...

Too much water may be as dangerous as too little during long-distance athletic events

...ssor of internal medicine at UT Southwestern, said competitive runners are less likely to suffer from hyponatremia. "Those who are running to finish the race very fast don't have time to drink a lot of water along the way," Dr. Levine said. "Those who are not running the race competitively tend to stop at every...

Rhesus monkeys can assess the visual perspective of others when competing for food

...es may have evolved in the first place, namely for competitive interactions with others. Finally, these results lay the groundwork for investigating the neural basis for this kind of social reasoning in a readily available laboratory animal ?an urgent endeavor for developing a better neural understanding of dise...

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