quite 2 5

Tag: "quite" at biology news

Genetic variation alters response to common anti-clotting drug

...explained Rettie. "A small change in dose can have quite a large effect on blood processes." For example, too high of a dose can result in excessive bleeding while too little of a dose could allow dangerous blood clots to form. Doctors primarily use information about a patient's sex, age, weight, and medi...

Corn grain mould used as pesticide

...xin problem," Professor Sikora thinks. He has had quite a lot of experience with combating tropical plant diseases. For two years the Bonn team, together with colleagues from the IITA in Benin and Nigeria, have been looking for a mould isolate which is guaranteed to be unable to produce aflatoxin ?after a...

Tiny roundworm's telomeres help scientists to tease apart different types of aging

...s simple, easy to grow in bulk populations, and is quite convenient for genetic analysis. When these scientists began their work almost nothing was known about worm telomeres. "We had to start at the very beginning. But now we know that C. elegans is the perfect model organism to study telomere biology si...

Oceans turning to acid from rise in CO2

...t's a real trend, it could be alarming. Oceans are quite big... It takes a lot of acid to change its pH, I guess! A report issued by the Royal Society in the U.K. sounds the alarm about the world's oceans. "If CO2 from human activities continues to rise, the oceans will become so acidic by 2100 it could ...

What Makes The Brain Tick, Tick, Tick: Researchers Gaining New Insights Into Brain's Internal Clock

...nson's patients are on their medication, they time quite normally," said Meck. "But as their medication wears off, we can see their clock slow down by recording their brain signals." Said Meck of their research, "We're addressing two challenges. One is to find the molecular processes that underlie this in...

Studies on human genome variation provide insight into disease

... often occur on different chromosomes, where it is quite another story," explains Cardon. When this is the case, true disease genes cannot be distinguished from their anonymous genetic 'twins.' "Research in human genetic variation is rapidly moving towards realizing our aims of improving diagnosis of com...

Housecat-sized Siberian tiger cubs get collared

... often occur on different chromosomes, where it is quite another story," explains Cardon. When this is the case, true disease genes cannot be distinguished from their anonymous genetic 'twins.' "Research in human genetic variation is rapidly moving towards realizing our aims of improving diagnosis of com...

Researchers find Amchitka seafood safe for now

...and successfully in this forbidding environment is quite extraordinary. And then we found that the challenge of analyzing our data proved every bit as difficult as the expedition itself. Intellectually honest and nimble people ?when they are really competent ?will find a way to find out the facts. This is ...

Cracking the perception code

...duration changed. The scientists knew they hadn't quite cracked the neural code, though, because the magnitude effects weren't right; the monkeys thought that a stimulus that was 50 percent shorter was vibrating at just a slightly lower frequency than it was--not 50 percent lower. To find the cause of th...

Scientists develop nanotech-laser treatment that kills cancer cells without harming healthy tissue

... placed under near-infrared light. "It's actually quite simple and amazing," Dai observes. "We're using an intrinsic property of nanotubes to develop a weapon that kills cancer." Trojan horse To assure that only diseased cells were destroyed in the experiment, the scientists had to find a way to selecti...

Plant genes identified that can form basis for crops better adapted to environmental conditions

...y work together are virtually unknown, it has been quite clear that an enormous number of factors are involved. Tom Beeckman and his team in the VIB Department of Plant Systems Biology took on the challenge of identifying all the genes that are involved in the process of capillary root formation. They us...

New discovery: If it weren't for this enzyme, decomposing pesticide would take millennia

...edings of the National Academy of Sciences also is quite unusual, he said. That success in part reflects UNC's continuing efforts to involve undergraduates in cutting-edge research. The National Institutes of Health supported the study. ...

Researchers find gland that tells fruit flies when to stop growing

...swer is obvious, but researchers have never really quite understood just how an organism determines when it has reached its optimal size and growth should cease. Now University of Washington biologists studying the physiology of Drosophila melanogaster, the common fruit fly, have discovered an organ that ...

Cornell finds natural selection in humans

...that carried the mutation -- can by chance become quite common in the population. The authors also found a correlation between genes predicted to be under negative selection and genes implicated in certain hereditary diseases. For example, among the genes the researchers predicted to be under negative ...

New molecule may aid in production of biofuels and fungi-resistant plants

...e chitin is a very tough molecule, chitinases have quite a challenge. In order to break the bonds between the sugar units, they must gain access to the bonds by somehow disrupting the packing of the sugar chains in the chitin molecule. How exactly chitinases overcome these challenges has been unclear until...

Regenerating worms help elucidate stem cell biology

...level and gross biological functions, they compare quite well," he said. Destruction of a planarian's neoblasts, which occurs when scientists expose the animal to radiation in the laboratory, is devastating. "The animal will survive on the virtue of its differentiated cells," Sánchez Alvarado said, "but ...

The earliest animals had human-like genes

...tors of humans, flies and worms were like." Until quite recently, such comparisons could only be made by l...ow we have direct evidence that genes were already quite complex in the first animals, and many invertebrates have reduced part of this complexity." Not onl...

'Nanospheres' that block pain of sensitive teeth

...filling the channels in teeth, packing inside them quite evenly and going down the holes to a good depth. They'd be the perfect shape of particle for filling these channels and reducing or preventing the pain caused by sensitive teeth". The next stage of their research will be to work out how to synthesiz...

Why Christmas trees are not extinct

...olved and competed with conifers for water, "it is quite possible that if conifers hadn't evolved this efficient valve, they wouldn't have been as conspicuous an element of today's forests. Being at such a tremendous disadvantage in the competition for water, it is unlikely they would be such a dominant el...

Dangerous tricksters: Some bacterie use immune cells to reproduce

...e result is inflammation and tissue damage. 'It is quite possible that rhodococci do not really mind this,' Professor Haas says, 'since they can then grab a passing macrophage and colonise fresh material.' The next aim of the Bonn researchers is to investigate which bacterial features are important for pr...

1 2 3 4 5 6 7 8 9 10