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Tag: "millions" at biology news

Is there a pilot in the insect?

.... These principles have been tried and tested for millions of years, and today they need to be applied to aerospace, because the phases in which an airship or a space module navigates close to the ground are absolutely crucial. The researchers and CNRS have filed an international patent for the "fly automa...

White blood cells in lung produce histamine seen in allergies

...ast cells, says Caughey, but "because pus contains millions if not billions of neutrophils, the overall amount they make is very considerable." The neutrophil-histamine effect was similar in the wild-type mice, reports Caughey: "Histamine levels from neutrophils blew right past the histamine levels contribu...

QUT scientists on the way to sifting out a cure for HIV

...o be filtered from human blood saving the lives of millions of people, thanks to a world-first innovation by Queensland University of Technology scientists. QUT scientists have developed specially designed ceramic membranes for nanofiltration, which are so advanced they have the potential to remove viruses f...

Ethanol vehicles pose a significant risk to human health, study finds

... made from corn or switchgrass, which will require millions of acres of farmland to mass-produce. It would seem prudent, therefore, to address climate, health and energy with technologies that have known benefits. '' ...

No sex for 40 million years? No problem

...nct ecological niches. Our results show that, over millions of years, natural selection has caused divergence ...es die out quickly, but these have been around for millions of years. "Our proof that natural selection has driven their divergence into distinct species is...

Liposuctioned fat stem cells to repair bodies

... allow him to predict which, among the hundreds of millions of stem cells in liposuctioned fat, are best at regenerating tissue. Uncovering the nature and location of these molecular tags could allow scientists to pull off the ultimate trick of taking a patient’s own fat cells and using them for therapy, Co...

Hay fever can send work productivity down the drain

Employers can blame hay fever for the loss of millions of hours of work productivity this spring. A new ...e University. “That means the potential loss of millions of hours of work productivity, not to mention the associated economic costs,?she said. Some estimate...

Circumcision: A proven strategy to prevent HIV

...ns is crucial." Simulation models estimate that millions of new HIV infections, tens of thousands of deaths, and several million dollars could be saved if male circumcision became routine in sub-Saharan Africa. "This is really the first good news we've had in quite a long time. If we can reduce the risk...

New science of metagenomics 'will transform modern microbiology'

...ronmental sample; there could be thousands or even millions of organisms in one sample. The extracted genetic material consists of millions of random fragments of DNA that can be cloned into a form capable of being maintained in laboratory ...

Stem cell therapy shows promise for rescuing deteriorating vision

For the millions of Americans whose vision is slowly ebbing due to degenerative diseases of the eye, the lowly neural progenitor cell may be riding to the rescue. In a study in rats, neural progenitor cells derived from human fetal stem cells have been shown to prot...

MIT's ocean model precisely mimics microbes' life cycles

...ith how biologists think of them-water filled with millions of diverse microbes that wax and wane in relative abundance through interactions with each other, and the environment, as dictated by natural selection," said Chisholm. Indeed the guiding principle of the new model is natural selection. It simulat...

Research project tackles 'regeneration' gap

...entists who study how vertebrate development began millions of years ago as well as scientists who are trying to treat blindness by influencing the activity of stem cells in the human eye. In terms of brain diseases, scientists may look at ways to mobilize and reinforce the body’s own supply of adult stem cel...

NASA snow data helps maintain nation's largest, oldest bison herd

...n to fewer than 50 animals by 1902. Prior to 1700, millions of bison roamed through Montana, Wyoming and Idaho in areas that later became Yellowstone National Park, the world's first national park. The bison herd at Yellowstone has grown to about 3,900 animals thanks to creative initiatives at the park to res...

Neuron cell stickiness may hold key to evolution of the human brain

...erved a specific non-coding DNA sequence over many millions of years, the sequence is likely to function as a switch turning genes on or off. In this latest study, he and his Science co-authors investigated whether CNSs also bear the signature of accelerated evolution. Explained Prabhakar, who devised the...

Novel experiment documents evolution of genome in near-real time

...ution of dinosaurs and other animals occurred over millions of years, but in the case of the E. coli bacterium, new technology has given us the ability to observe evolution as it is occurring over a matter of days," said Bernhard Ø. Palsson, the senior author of the study and professor of bioengineering at UC...

Invasive ants territorial when neighbors are not kin

...ine ants form expansive "supercolonies" containing millions of nests and stretching hundreds of miles. Researchers have disagreed on the reason for the lack of aggression between ants from different nests in the same colony. "Some ecologists have hypothesized that environmental factors act to reduce aggr...

NHGRI aims to make DNA sequencing faster, more cost effective

...techniques having massively parallel format, where millions of single DNA base additions can be followed at the same time. The identification of bases will be done exclusively on the basis of changes experienced by the molecule as a whole. The team aims to fabricate a low cost table-top setup suitable for use...

Transplanted photoreceptor precursor cells restore visual function in mice with retinal degeneration

...tions for human eye diseases that dim the sight of millions of people, Swaroop anticipates that several years of research using animal models and cell culture systems will still be needed before transplantation can be considered ready for testing in humans. Restoring visual function in animals is an impo...

Hair-growth drug artificially lowers PSA levels in prostate cancer screening, study finds

The popular hair-growth drug finasteride, taken by millions of balding men, artificially lowers the results of the prostate-specific antigen (PSA) test, the standard screening test for prostate cancer, a multicenter study has found. The study, involving 308 men ranging in age from 40 to 60 years old, is ava...

Recycling technology

...es are so rapid that society is already discarding millions of LCD screens each year. There are no viable recovery techniques and no fully safe disposal options. Some 40 million LCD television sets were sold worldwide last year with expected sales likely to top 100 million by 2009. Now scientists in the D...

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