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Tag: "many" at biology news

Flies don't buzz about aimlessly!

...hese manoeuvres avoid obstacles in their path. But many others seem to appear spontaneously. Are the spontaneous flight paths really random, do they serve any real purpose? Armed with a computer video tracking system and an array of mathematical techniques the two researchers have revealed how the fli...

Lighting up life: Cold Spring Harbor Protocols presents tips for creating glowing plants

...scent protein (GFP) has allowed biologists to make many new discoveries regarding how living cells functio...spectrum of topics essential to researchers across many disciplines. ...

Cloning the smell of the seaside

...entrations. Scientists have known about DMS for many years but the genes responsible for its production have never before been identified. The new findings will be published in the journal Science on Friday February 2. "By isolating a single gene from a bacterium collected from the mud of Stiffkey m...

Researchers find link between food odors and lifespan in fruit flies

...ricted dietary intake can increase the lifespan of many species, but the mechanism that causes this is not...ricted dietary intake can increase the lifespan of many species, but the mechanism that causes this is not understood. Short-lived organisms like the fruit ...

Tibetan antelope slowly recovering, WCS says

...perhaps 75,000 chiru remained in the wild, with as many as 20,000 falling to poachers annually. However, no comprehensive census of chiru has ever taken place due to a sprawling range that spans more than 250,000 square miles. The team also counted more than 1,000 wild yak, a relatively high number fo...

Study examines genetic risk factors for Alzheimer's disease

...ne of the largest studies of its kind and involves many Welsh families " said Professor Julie Williams. “It is by virtue of the support given to us by Alzheimer's sufferers and their carers that we are able to understand factors involved in the disease process. Many genes will be linked with Alzheimer’s ...

BMI not accurate indicator of body fat

... you look at an athlete like that, you see that in many cases he is not obese. Many athletes have huge BMIs because of muscle mass, but in many cases are not fat." The answer, said Pivarnik, is instead of having one cutoff point for everyone...

Sandia researchers take new approach to studying how cells respond to pathogens

...proach is designed to be flexible enough to handle many different cell types, and it also minimizes the nu... cell subpopulations. "In effect, we are taking many work-horse technologies such as confocal microscopy, flow cytometry and immunoassays and combining t...

2 brains -- 1 thought

...diversity." This procedure resembles juggling with many unknown quantities and requires great computationa... possessing the same dynamics? Is it possible that many more networks fulfilling the same functional and structural conditions could have evolved? There is ...

Out-of-body experiences may be caused by arousal system disturbances in brain

...combined with an out-of-body experience could show many of the same prominent features of a near death experience. Near death experiences are responses to a life-threatening crisis, and are characterized by a combination of disassociation from the physical body, euphoria and transcendental or mystical ele...

Transfusion expert urges wider use of filtered blood

...and some practitioners are not convinced they hold many risks. But doctors at the University of Rochester,... said, is akin to a temporary organ transplant. In many cases the transfused blood modifies a person's immune system ?either in a favorable or unfavorable w...

UCI scientists reconstruct migration of avian flu virus

...Chinese province of Guangdong, and they identified many of the migration routes through which the strains ...home to a large poultry industry ?is the source of many H5N1 strains that have spread to other provinces and countries. To the south in nearby Indochina, th...

Paper challenges 1491 Amazonian population theories

...mazonia and created the modern forest setting that many conservationists take to be ‘natural.' This view has become fashionable among many archaeologists and anthropologists, and is challenged in a recent paper from Dr. Mark Bush of the Fl...

Scientists genetically engineer tomatoes with enhanced folate content

...on of nucleotides--the building blocks of DNA--and many other essential metabolic processes. Deficienci...ood and Drug Administration made it mandatory that many grain productssuch as rice, flour and cornmeal be enriched with a synthetic form of folate known as ...

Glucose triggers brain cell death in rats after hypoglycemic coma

...polate these findings to humans. Second, there are many ways to go wrong in humans by not treating hypoglycemia aggressively enough. The results of this one paper do not mean that clinicians should take an overly cautious approach to hypoglycemic coma." In his own current research, Swanson is investiga...

Male-killing bacteria makes female butterflies more promiscuous

...high-prevalence of male-killing bacteria active in many species of insect including the butterfly, actuall... study, said: "Male-killling bacteria are found in many insect species including the British ladybird. We wanted to know what the effect of the bacteria is ...

Despite their heft, many dinosaurs had surprisingly tiny genomes

They might be giants, but many dinosaurs apparently had genomes no larger than that of a modern hummingbird. So say scientists who've linked bone cell and genome size among living species and then used that new understanding to gauge the genome sizes of 31 species of extinct dino...

Gene found for rare disorder may reveal new pathway in mental retardation

... have long been known to play an important role in many species in controlling the integrity of chromosome...lashes, thin lips and excessive body hair. "In many of these patients, an experienced clinician might recognize their more subtle facial features as sug...

Navigable nanotransport

...re linked together, they form an empty sphere with many tiny cavities on its surface. These "pockets" can be filled with certain nitrogen-containing biomolecules, such as spermine, in a very stable fashion. The Korean researchers coupled spermine to the vitamin folic acid and packed these hybrid molecu...

Major gene study uncovers secrets of leukemia

...are the underlying cause of not only ALL, but also many other cancers, including those affecting adults," said James Downing, M.D., scientific director and chair of the Pathology department at St. Jude. He is senior author of the paper. The study found that 40 percent of patients with ALL had deletion...

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