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Tag: "documented" at biology news

Undergraduate research shows leaderless honeybee organizing

...se to other signals. Pierce and Schneider have documented in their current paper how workers use the vibration signal to prepare the queen for swarming by making intrusions into her “court” and vibrating her hundreds of times an hour. She responds by changing her behavior -- reducing her food intake, slowin...

Runners -- Let thirst be your guide

...nd triathlon races, and there have been at least 8 documented fatalities. Some people have been known to gain up to 6-7 pounds during a marathon due to retention of water that the kidneys cannot excrete, he says. “No one should be gaining any weight during these events,” according to Verbalis, “and if they do, ...

Reconstructing the biology of extinct species: A new approach

An international research team has documented the link between the way an animal moves and the dimensions of an important part of its organ of balance, the three semicircular canals of the inner ear on each side of the skull. The team's article on its research will be published on 26 June in th...

WHO data confirms low level of resistance to Tamiflu

...ness. However, to date, there have only been three documented cases of Tamiflu resistance to avian influenza H5N1. 3,4 In one case, the prophylactic dose (75 mg daily) rather than the treatment dose (75 mg twice daily) was given to a patient already exhibiting clinical symptoms, thus under-dosing the patient an...

Rare soft-shell turtle, nesting ground found in Cambodia

...in the late 1990s. “Our survey work to date has documented some of the highest freshwater biodiversity values in the entire Lower Mekong Basin,?said Mark Bezuijen of WWF’s Living Mekong Program, who led the team. “We discovered an entirely new plant species, Amorphophallus Sp., along with surviving populatio...

Studies force new view on biology of flavonoids

...erous studies in the United States and Europe have documented a relationship between adequate dietary intake of flavonoid-rich foods, mostly fruits and vegetables, and protection against heart disease, cancer and neurodegenerative disease, Frei said. ...

Study suggests some drug resistance to influenza B medications

...influenza and are used extensively. There has been documented evidence of the emergence of oseltamivir-resistant type A viruses, but similar information on influenza B viruses has been limited. Influenza B viruses are associated with annual outbreaks of illness and increased death rates worldwide, according to ...

Mailman School of Public Health researchers report blood DNA can be early predictor of liver cancer

...e and hepatitis B and C virus infections, are well documented risk factors for the development of HCC. According to the study findings, these factors coupled with smoking and alcohol status, and alterations found in this study in serum DNA, resulted in an overall predictive accuracy of 89% for detection of HCC...

Paleontologists discover new mammal from Mesozoic Era

... now the Hebei Province in China. The new mammal, documented in the March 15 issue of the journal Nature, provides first-hand evidence of early evolution of the mammalian middle ear--one of the most important features for all modern mammals. The discovery was funded by the National Science Foundation (NSF). ...

No-scalpel vasectomies by skilled surgeons may speed recovery

...t involved with the review. Despite the lack of documented evidence, men are increasingly asking their doctors about this method. Goldstein said that one-third of the vasectomies now done in the United States use the no-scalpel method. Goldstein recommends that a patient considering a no-scalpel vasectomy...

A steady, high-fat diet is bad, but the news gets worse

...and senior author of the study. "It’s been well documented that a high-fat diet leads to artherosclerosis and high blood pressure, and that exaggerated and prolonged cardiovascular responses to stress are associated with high blood pressure in the future. So when we learn that even a single, high-fat meal ca...

Motor protein plays key role in connecting neurons

...f myosin X changes as the neuron develops. She has documented that in late stages of development, when the axon needs to stop growing, a shorter molecule, minus the motor, is expressed. "Probably after the neuron is developed, the major work of myosin is done. There are many cleavage sites in the middle and thi...

A potential biological cause for sudden infant death syndrome

...xes, the researchers believe. Kinney previously documented serotonin receptor abnormalities in two other populations of SIDS infants, including American Indian infants in the Northern Plains, whose SIDS rate is among the highest in the world. The current study confirms those findings in a third population an...

ASU researchers test antibacterial effects of healing clays

...fth advisory group meeting on Buruli ulcer, having documented more than 50 cases of successful healing with the clay treatments. WHO documents indicate that the organization was receptive, calling her results "impressive," yet, Williams notes, funding was denied for lack of scientific study. Williams, from a...

Genetic surprise confirms neglected 70-year-old evolutionary hypothesis

.... Other genetic causes of speciation are clearly documented in nature, and it wasn't until we had the ability to sequence whole genomes that we could even attempt to investigate the question." Curiously, the hypothesis nearly died twice. Theodosius Dobzhansky, a well-known evolutionary geneticist, studied f...

Mayo discovers protein as potential tactic to prevent tumors

...ancer. How It Happens The Mayo researchers documented that CDK2 infuses high energy into another cellular protein, FOXO1, switching it on as the initial link in a signal that tells the cell to set itself up for apoptosis. CDK2 adds phosphorylation to a specific serine residue on the chain of amino acids...

Pattern of human Ebola outbreaks linked to wildlife and climate

...re able to identify relationships among previously documented Ebola outbreaks in humans and wildlife in Gabon and RoC that initially seemed disparate and unrelated. They proposed that the virus first spread southwest across Gabon. It then looped back toward the northeast from sites in western or central Gabon...

New dyslexia theory blames 'noise'

...ted a Northwestern University study from 2003 that documented negative effects from noise on children with learning deficits. Lu said there is a "lot of evidence" of learning problems from ambient noise. In one such study, Manis and a collaborator from UCLA found that children with dyslexia struggled to disc...

Stanford discovery may help predict when toxoplasma can be deadly

...he more virulent strains of Toxoplasma were first documented in a 2001 Science paper from Boothroyd's group; the researchers found that the recombination of two relatively benign strains of Toxoplasma can result in a thousand-fold increase in their ability to cause serious disease. Over the last few years, ...

New dwarf buffalo discovered by chance in the Philippines

...of these two individuals, science might never have documented what has turned out to be an extremely unusual species of dwarf water buffalo, now extinct. The new species, described in the October issue of the Journal of Mammalogy, has been named Bubalus cebuensis (BOO-buh-luhs seh-boo-EN-sis) after the Philip...

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