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Tag: "power" at biology news

Mimicking how the brain recognizes street scenes

.... The researchers were pleasantly surprised at the power of this new approach. "People have been talking about computers imitating the brain for a long time," said Poggio, who is also the Eugene McDermott Professor in the Department of Brain and Cognitive Sciences and the co-director of the Center for ...

Remote sheep population resists genetic drift

...etic drift," he said. "And I think it shows us the power of natural selection." Coltman and his colleagues, including Renaud Kaeuffer and Denis Réale from the University of Quebec at Montreal, and other collaborators from France, have published the results of their research recently in the journal Proce...

Hybrid molecule causes cancer cells to self-destruct

...nents work together to bolster the cancer-fighting power of butyrate. The double attack triggers cellular suicide, also called apoptosis, in the cancer cells. To find out whether this butyrate-ManNAc hybrid alone would produce the positive results, the researchers tested three other sugar-butyrate comb...

Fighting influenza & co. with 40,000 blood samples

...ple. The reason for this is that with age the fire power of the immune system is reduced. Why this is the case is largely unknown. An international EU project led by the University of Bonn is now starting which aims at shedding light on this. Among other things, the researchers want to get a step closer to...

Hotspots of mercury contamination identified in eastern North America

...r regulation of emissions from coal-fired electric power stations, which, along with municipal waste incinerators, are major sources of mercury pollution. Cap and trade approaches seek to reduce the total release of mercury but could lead to static or increased emissions in some areas. Greater deposition o...

When your brain talks, your muscles don't always listen

...cal motor capacity, according to Knight. "After power training with weights, we see an increase in firing rates," Knight said. "For safety, we're commonly advised to do things slowly when exercising, but it's important to also do some fast exercises. You need a fast movement to prevent a fall. Even in t...

Robotic exoskeleton replaces muscle work

...wearer's gait was disrupted because the mechanical power added by the exoskeleton made the muscle stronger. However, in a relatively short time, the wearers adapted to the new strength and used their muscles less because the exoskeleton was doing more of the work. Their gait normalized after about 30 minut...

Fitness has fallen since the days of Ancient Greece

...nd enough people at that level of fitness today to power the ships at those speeds." Triremes were a huge technological advance, allowing Athens to dominate the seas. They had a strong keel, taken forward into a huge spike covered in bronze plates, which meant they could ram and hole enemy ships -- a ne...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

...astodon, providing further evidence of the staying power of ancient protein. "I think what this says is that when people make new discoveries now, if they want to get maximum information out, they have to immediately handle material in a way that first of all will avoid contamination and, second, ensure...

Shedding new light on proteorhodopsin

...equipped with proteorhodopsin will switch to solar power to carry out vital life processes. "Our resea... proteorhodopsin." Liphardt said that the solar power option represents a potentially significant boost for efforts to develop alternatives to fossil fuel...

Fighting to keep Darwin in the classroom

...e and religious leaders have grasped the political power of the tricky ideas of 'intelligent design.' For such a project, education is the main pathway." ...

Darwin's famous finches and Venter's marine microbes

... more sensitive and diverse, and so increase their power to categorize novel sequences." Diversity of microbial kinases In a separate study, Manning, Zhai, and first author Natarajan Kannan, Ph.D., a postdoctoral researcher in the lab of HHMI investigator and UCSD professor Susan S. Taylor, Ph.D., ...

Gene that makes people 'early to bed and early to rise' demystified

...g to the researchers. "This study highlights the power of natural human mutations to uncover things [about the circadian clock] that we might not otherwise have learned, or that we might have misunderstood before," said Howard Hughes Investigator Louis Ptácek, of the University of California, San Francis...

World's largest flower evolved from family of much tinier blooms

...lossoms just a few millimeters in diameter. "The power of nucleic acid comparisons is revealed as well as ever in this stunning deduction," says noted botanist Peter H. Raven, president of the Missouri Botanical Garden in St. Louis, who was not involved in this research. "The massive increase in flower s...

Researchers create artificial enzyme that mimics the body's internal engine

...e useful to the study of fuel cells-very efficient power sources that convert chemical energy to electricity. "If we can develop better catalysts to do that reduction, we can get better fuel cells," Devaraj explained. ...

HIV protein enlisted to help kill cancer cells

...of death." To further enhance the cancer-killing power of TAT-Bim and similar proteins under development, Hawkins and his colleagues are working on a technique that will concentrate them within tumors while sparing healthy cells. In collaboration with Robert H. Mach, Ph.D. professor of radiology, they ar...

Sunshine pill for prostate cancer in 2009

A tablet designed to emulate the healing power of the sun could be available for the treatment of advanced prostate cancer as early as 2009. But it remains to be seen whether the drug will be the revolution in prostate cancer care that its makers claim. The drug, Asentar (DN-101), is based on v...

Computer scientists join in search for ivory-billed woodpecker

...ed to help Song and Goldberg install, maintain and power ACONE. "You want to have these people help you," Song said. "Otherwise, you have a big problem." Song and Goldberg took interest in the search for the ivory-billed woodpecker after Goldberg read an article about the search in The New York Tim...

Napoleon's mysterious death unmasked, UT Southwestern researcher says

...apoleon could have altered the balance of European power had he escaped his exile. An autopsy at the time cited stomach cancer as the cause of death. A study done in 1938 indicated that Napoleon's father died of stomach cancer. In 1961, an elevated level of arsenic was found in hair taken from Napoleon,...

Largest genomic search finds genes that may contribute to autism

...h. The consortium scientists utilized statistical power from the largest set of autism-related genetic material yet examined. The researchers found neurexin 1, part of a family of genes that plays a role with the neurotransmitter glutamate, and a still-to-be-pinpointed gene on chromosome 11 to be likely s...

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