Tag: "found" at biology news

UC Geologist "Flip-Flops" On Understanding Of Crinoid Life Style

...e how long the arms of the Uintacrinuswould be. We found the length of their arms could be one meterlong, s...s called the pinnulesgive you even more length. We found these crinoids have muchgreater arm length than any known crinoids." Using a well established formul...

Geologist Finds Hidden Patterns Of Diversification In Ordovician Radiation

...evelwith reported global diversification rates, he found significantdifferences in the patterns. "The global pattern does not matchany localized pattern," said Miller. "The global diversity trendis misleading for what it says about the rates of transition andperhaps even for what causes them." Miller looke...

Insects Provide Clues About Bodies Underwater

...nowpiecing together their activity patterns. She's found that populations aredifferent between streams and lakes, for example, so determining where deathoccurred, if it's in question, is possible. Some aquatic insects are unpredictable, while others appear to be seasonal."Unlike terrestrial insects, they m...

New Mathematical Model Could Help Predict Health Of Offshore Areas Where Rivers Enter The Sea

...eter Franks of the ScrippsInstitute ofOceanography found that tidal currents can take this bloom down as deep as 80meters, aphysical change that has a profound effect on production of food for largeranimals. "There are front zones in lakes, too, and I am part of a team studying themin LakeSuperior and...

Purdue Research Shows Omega-3S Benefit Bone

...mmon in corn, soy and safflower oil. Omega-3's are found in large quantities in fish, soybean oil and canol...he American Society for Bone and Mineral Research, found that bones of animals fed increased amounts of omega-3 fatty acids showed improved formation rates a...

Testosterone And Working Memory; Epilepsy And Schizophrenia; Toxins And Neuron Death; Oregon Researchers Present Findings At Society For Neuroscience

...icology (CROET) focused on the plant toxincycasin, found in the cycad plant. Cycasin is composed of glucose... showed orphaninreglates the circadian system, but found the specific neuronal pathway throughwhich orphanin acts. "This could lead to some important clinica...

Growth Factor Stimulation Leads To Increase In New Neurons In The Striatum And Cortex Of The Brain

...tissue culture. These newly generated neurons were found to travelto the olfactory bulb in the forebrain. I...cells, many of which were neuronal cells, alsowere found in the parenchyma adjacent to the SVZ. The finding that a mammalian brain can be stimulated ...

Hormonal Changes At Puberty Can Mask High Cholesterol In Blood

.... The Dietary Intervention Study in Children study found that sexual maturationhad the most powerful influe... as expected, reports Kwiterovich. The researchers found that the degree of sexual maturation, defined by pubichair development in boys and girls and breast ...

Scientists Use IGF-I To Grow New Membranes Around Neurons

...erum. During embryological development, IGF-I is found in high concentrations near tiny "bud cells" called Schwann cells which grow long fibers and wrap around neurons to form myelin sheaths. The U-M experiments were designed to determine whether IGF-I triggers this transformation in Schwann cells. Firs...

Common Food Dye Can Cause Severe Allergic Reactions

...et, and points out that several large studies have found it to be safe and non-toxic. It would be helpful, however, if the FDA required cochineal extract and carmine to be listed as an ingredient on food labels, he says. The only way people can avoid allergic reactions is to avoid the substance they're a...

Study Shows Hereditary Legacy Of Radiation Exposure

...tedDNA damage, according to Wiley. Wiley said she found a significant reduction in cell reproduction andgrowth in the offspring of mice that had been irradiated six or seven weeksbefore conception, corresponding to a sensitive stage in sperm development.These grandchildren mice also weigh less than normal...

Researcher Discovers Plant Genes For Phosphate Uptake

...ability to compete for the few phosphate molecules found free in soil solution. Other scientists working wi... that produce phosphate transporter proteins. They found the genes there, isolated them, and decoded them. They also noted that the phosphate-starved plants ...

Purdue Researchers Track Oil Spill's Effects On Sea Otters

... with the project in 1989, when project scientists found abnormalities in the sea otters' blood. Snyder joined the team in 1995. "The researchers wanted to know whether the animal's immune system had been compromised," Snyder explains. "I have a clinical immunology lab here at Purdue, where we've evaluated...

Stress Lowers Sperm Count By Overwhelming Cells That Make Testosterone

...byPopulation Council endocrinologist Matthew Hardy found that stress hormonesoverpower the enzymes responsi...potential way to regulate sperm production." Hardy found receptors in adult Leydig cells that mediate the action ofglucocorticoid hormone. In small amounts, ...

Colorado State Scientists Tackle Genetic Makeup Of Obscure Bacteria

...rate five-year studies into what causes a bacteria found virtuallyeverywhere to mysteriously single out AID...s and pneumonia. Because Mycobacteriumavium can be found virtually everywhere, AIDS patients can be exposed by takinga shower or eating food that contains th...

Max-Planck Researchers Unravel The Structure Of The Methane Forming Enzyme

...rt-living Ni-CH3, metal-organic compound rarely found in biological systems. The structure was solved in two different enzyme states which ressemble the coenzyme binding before and after reduction. When comparing the two enzyme states coenzyme M moves more about 4 E and thus provides a dynam...

Reanalysis Of International Data Finds Sharp Decline In Sperm Density

... subjects' seminal fluid. In another,investigators found that a general decline in sperm concentration during theyears 1949 to 1981 was statistically linked to an overall increase in severalenvironmental exposures. While there is no evidence that this apparent decline in sperm density hasled to reduce...

Recombinant Protein Immunizes Mice, Promises New Strategy Against Infection And Cancer

...sto attack. Dr. Young and his colleagues found one particular protein from thetuberculosis bacterium, called hsp70, that could elicit powerful immuneresponses and could be used as an immune system booster. The special propertiesof hsp70 prompted the researchers to investigate whether soluble hsp...

Biological Clocks No Longer Found Only In The Brain

...-in-the-dark fruit flies. Kay commented, "We found that all tissues we cultured from the whole animal...identified, and another similar gene also has been found throughout the body of mice. According to Kay, the discovery of many non-brain clocks in fruit flie...

SFU Researcher Fools Forest Pest Into 'Barking Up The Wrong Tree'

.... The results are promising. This past summer, he found that single trees can be protected "quite well" using non-host volatiles, along with other compounds that the beetles avoid. Huber believes the method has huge potential as a control agent. "I don't think it'll be the only method used, because there ...

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