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Tag: "compete" at biology news

'Executive' monkeys influenced by other executives, not subordinates

...important, if you're a low-ranking macaque, not to compete with a high-ranking individual, so you want to know where they're paying attention." In the experiments, Shepherd showed macaque monkeys images of monkeys known to be of higher or lower status than themselves. The images depicted the monkeys lookin...

Researchers release new variety of asparagus

...new varieties of the vegetable ?varieties that can compete with those produced in other countries where labor cost is low, such as Peru and Mexico," said Mikeal Roose , a professor of genetics in the Department of Botany and Plant Sciences and the leader of the asparagus breeding project. "Indeed, Neil Ston...

Honeybee decision-making ability rivals any department committee

...it frequently. Scouts committed to different sites compete to attract uncommitted scouts to their sites, the researchers have discovered, but because the bees grade their recruitment signals in relation to site quality, the scouts build up most rapidly at the best site. As soon as 15 or more bees are at an...

Georgia Tech accelerates drug discovery with new IBM supercomputing cluster

...ost technologically savvy universities are able to compete in the field of drug discovery and bioinformatics," said Mike Cassidy, president and CEO of the Georgia Research Alliance. "Georgia Tech's focus on top-of-the-line technology and research facilities and the attraction of Dr. Jeff Skolnick and other w...

New organic substrate

...e and forest nurseries. It is a substrate that can compete with those in the market, especially those used for mushrooms and hydroponic crops, as a single substrate, while for the nursery crops it should be mixed with peat. Peat is the prime substrate at a worldwide level as it provides great technical per...

MIT researchers build tiny batteries with viruses

... batteries are generally too heavy and too weak to compete with gasoline as an energy source. Still, battery technology is gradually 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 t...

Discovery may speed forest biotechnology

...ocus their energy on growth and height in order to compete for sunlight with other trees, and only later in their life do they divert energy to produce seed." Strauss noted that for the same reasons, any releases of such early-flowering genes into wild populations are very unlikely to be of ecological conce...

Study shows hope for ridding lakes of clawed invader

...tic plants, they eat fish eggs, they either eat or compete with native invertebrates and, in general, raise havoc with the near-shore community of a lake," says Stephen Carpenter, a UW-Madison professor of limnology and zoology involved in the study on Sparkling Lake in Vilas County, Wis. Supported by the...

Virtual realities against pain

...involvement, and participation from the patient to compete with the signals of the harmful stimuli. The advanced distraction techniques (ADTs) recently developed use 3D images combined with dynamic audio stimuli, making the techniques more likely to meet the requirements of an ideal distractor than the tr...

Schepens scientists are first to discover angiogenesis switch inside blood vessel cells

... between two enzymes (known as PI3K and PLCg) that compete for the use of the same lipid membrane to fulfill opposite missions, growth and regression, respectively. This finding could lead to new, more targeted drugs for diseases such as cancer, diabetic retinopathy and macular degeneration. The study, title...

Ready, set, mutate?and may the best microbe win

...ng an ingenious experiment that forced bacteria to compete in a head-to-head contest for evolutionary dominance, today offer the first glimpse of how individual genetic-level adaptations play out as Darwinian natural selection in large populations. The results appear in the May 19 issue of Molecular Cell. "...

Dominant meerkats render rivals infertile

...irst, her own pups will benefit from not having to compete with additional pups born to a subordinate for the limited number of available caretakers. Second, because subordinate females actually kill other females' pups when pregnant themselves, reducing subordinate female pregnancy rates will reduce the thr...

Jellyfish dominate fish in over-harvested Namibian waters

...he process. Because fish and jellyfish essentially compete for similar nutrient resources, a dramatic decline in fish populations could theoretically contribute to a substantial shift in the abundance of jellyfish. The researchers' findings indicate that jellyfish now account for significantly more biomass...

Report focuses on the role good microbes play in future medicine

...e exclusion" in which beneficial microbes directly compete with disease-causing microbes for food and other resources, eventually crowding them out. One potential application of competitive exclusion would be colonizing the mouth with beneficial bacteria to prevent the growth of bacteria that cause cavities...

Bacteria have their own immune system protecting against outside DNA

... bacteria is infecting a host, other molecules can compete with the H-NS protein, allowing the disease-causing genes to be expressed. When the bacteria are in the environment, H-NS turns these genes off to avoid detrimental consequences if all the disease-causing genes were to be expressed at once. These fi...

Evolutionary forces explain why women live longer than men

...imited in offspring quantity, thus males typically compete with each other to attract and retain female partn... tail of the peacock to the blinged-out SUV, males compete aggressively for female attention, and that costs them something. In nature, it means riskier physio...

Epstein-Barr virus might kick-start multiple sclerosis

...ical students who are interested in research. They compete for the opportunity to spend a year conducting mentored research in NIH labs. The program is designed to encourage medical students to consider careers as physician-scientists. Edwards, a medical student at Duke University School of Medicine, conduct...

Parental genes do what's best for baby

...e prevailing view that maternal and paternal genes compete for supremacy in their unborn offspring fails to answer some important questions relating to child development. In fact, rather than a parental power struggle, the researchers suggest that certain offspring characteristics can only be explained by...

Different strategies underlie the ecology of microbial invasions

...pared two different general ways in which bacteria compete with one another, and they have found that each st...herefore makes phage carriers able to successfully compete with phage-susceptible bacteria even faster when the carriers are rare, whereas chemical killers can...

Renewed dolphin slaughter prompts new campaign

...nt has made the unsupported claim that the animals compete with local fishermen for limited supplies of fish and that the drives are in fact a means of pest control. Also, the "Act for Dolphins" consortium maintains that, in spite of the fact that the hunting of dolphins and use of their meat has waned in po...

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