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Tag: "fast" at biology news

Nano springs eternal; Protozoan 'engine' posts nano records

... in a flash, forming a tight coil. To find out how fast and how hard Vorticella recoils, France and colleagues used modern microscopes and tools to measure the force and speed of the spring. This is one powerful engine, France reports. The spasmoneme's contraction is measured in nano-newtons of force and ...

Harnessing genomic research

... as MRSA infection and bacterial meningitis, where fast confirmation is critical, or for potentially catastrophic but widespread and non-symptomatic infections such as that caused by Chlamydia. Vaccine against salmonella?/B> A team investigating the microbial genes important for the survival and gro...

Scientists narrow the time limits for the human and chimpanzee split

...ble importance because it is used to establish how fast genes mutate in humans and to date the historical spread of our species around the globe." Kumar was assisted at Arizona State by Research Associate Alan Filipski and graduate student Vinod Swarna. The scientists estimated the time of divergence be...

Virtual microscopy project wins educational technology award

... developed a virtual microscopy system that allows fast web-based viewing of full resolution virtual slides. Virtual microscopy can be of educational value in all fields were microscopy is being used. The researchers are confident that virtual microscopy in the near future will become a key teaching aid,...

Underlying cause of massive pinyon pine die-off revealed

...imate change models. The new finding suggests big, fast changes in ecosystems may result from global clima...er woodlands. "Scientists are concerned about how fast vegetation will respond to climate change, but we don't have many examples to test our ideas," Bresh...

War on terror meets war on cancer

... test to assess the metabolic rate of a tumor ?how fast the tumor is growing," says Hegg. "This could be e...on, then you need some other way to figure out how fast it's growing," Hegg says. Such a test would involve taking a blood sample to collect some metabolit...

Reducing antibiotic use lowers rates of drug-resistant bacteria

...sistant bacteria, commonly called "superbugs," are fast becoming a problem due to overuse and inappropriate prescribing of antibiotics. Streptococcus pneumoniae bacteria, also called pneumococci, are commonly found in children's noses and throats, and can result in ear infections, sinusitis, pneumonia and...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

...at symbiotic bacteria have undergone exceptionally fast rates of protein evolution despite having precisely maintained their genomic architecture over long periods of evolutionary time. In their report, published today in the journal Genome Research, the scientists discuss this model in the ecological con...

Cracking the perception code

...s directly related to monkeys' ability to tell how fast something is vibrating, Romo said. But the neurons...l firings become to the monkeys' perception of how fast the stimulus is vibrating, even though they continue to pay some attention throughout. Figuring out...

U-M scientists say fused genes trigger the development of prostate cancer

...ia research institutes have used a different, very fast and relatively low-cost computational tool to 'crunch' the world's largest repository of genotypes to predict their haplotypes -- and they did so in less than 24 hours, approximately 1,000 times faster than the prevailing technology until now. Their ...

California computer scientists double volume of data in NIH biotech repository

...ia research institutes have used a different, very fast and relatively low-cost computational tool to 'crunch' the world's largest repository of genotypes to predict their haplotypes -- and they did so in less than 24 hours, approximately 1,000 times faster than the prevailing technology until now. Their ...

Scientists get first glimpse at how plants, most animals repair UV-damaged DNA

...t nobody could prove it. The reaction happened too fast to be seen with normal laboratory tools. Scientis...a second, the researchers were able to make a very fast series of measurements to follow how the chemical reaction evolved over time. They assembled their ...

India's smoking gun: Dino-killing eruptions

...t may have piled up in as little as 30,000 years - fast enough to have possibly caused a deadly global climate shift. "Our working hypothesis is that the majority of the total volume of lava might have been erupted in only a few major events spread over only a small fraction of millennia," said Anne-Lise...

Sea Ice May Be on Increase in the Antarctic

...n University School of Medicine. "The mice respond fast to high glucose by raising insulin levels, clearing the blood of the circulating sugar." "Under normal feeding conditions, when glucose levels are lower, the mice with elevated Sirt1 appear normal," Imai added. "This is good news, suggesting that th...

Life-extending protein keeps blood sugar in check

...n University School of Medicine. "The mice respond fast to high glucose by raising insulin levels, clearing the blood of the circulating sugar." "Under normal feeding conditions, when glucose levels are lower, the mice with elevated Sirt1 appear normal," Imai added. "This is good news, suggesting that th...

Study shows eutrophic lakes may not recover for a millennium

...to put many freshwater lakes on the eutrophication fast track, a new study shows their recovery may take a..., phosphorus pollution could put Lake Mendota on a fast track to extreme degradation. "There is a potential shift to an extremely degraded state that could ...

Mayan stingless bee keeping: Going, going, gone?

... pollinators," Roubik explains. But beekeeping is fast becoming a global monoculture. Africanized honey bees produce more honey, and therefore are an economically attractive option for bee keepers. In the Mayan tradition, a priest harvested stingless bee honey as part of a religious ceremony twice a year...

Beetle-inspired switch uses water for bonding

Imagine this: A tiny, fast switch that uses water droplets to create adhesive...depended on switches, and this is a switch that is fast and can be scaled down," said Paul Steen, a professor of chemical and biomolecular engineering at Co...

Spider blood found in 20 million year old fossil

... which direction it was travelling in and even how fast it was moving." In the latest issue of the journal Palaeontology (2005, vol. 48, part 5) David describes how the spider died. He believes the spider was climbing up a tree when it was struck head-on by a sudden strong flow of resin. The spider then ...

Millennium Ecosystem Assessment: Many of 2 billion dryland dwellers at risk as land degrades

...ication is unknown. Nor is it known accurately how fast it is increasing. Based on three studies in the past 15 years, an estimated 10 to 20% of world drylands are degraded, with a much larger fraction at risk of future desertification. "Bridging the wide gaps in determining the extent and understanding ...

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