Tag: "characteristics" at biology news

Important New Fossil Animal Discovered By Wits Scientists

...headed one of Africa". This refers tothe fact that characteristics with the Anomodont group are not uniformthroughout all its members. The specimen has been described in the February 22 issue of theprestige publication Proceedings of the Royal Society of London,Britain's oldest scientific journal. Said Professor Ru...

What Makes An Arm An Arm And A Leg A Leg

...s. The resulting structureslost many of their wing characteristics and gained those of a leg: feathers weregone, claws appeared at the end on the digits, and leg-specific muscles wereclearly identifiable. "This is the first time that a gene has been shown to direct a transformation offorelimb (arm or wing) to hindl...

Vesicle Chemistry: A New Way To Get Life-Like Reactions

...icon wafers that create environments with physical characteristics closer tothat of glass than that of living cells. So they are not as effective forstudying biochemical reactions, Zare says. Other contributors to the research were: Stanford graduate students Daniel T.Chiu, Clyde F. Wilson and Alexander Moscho; Stan...

Story Tips: Engineering Students Pursue Cutting-Edge Research

... in important research is one of thedistinguishing characteristics of an undergraduate education at Johns Hopkins.About 80 percent of the university's undergraduates engage in some form ofindependent study during their four years here, often in primary researchprojects alongside top scientists in their fields. Follo...

The Commons: Not Always A Tragedy

...ch effectivesolutions for management depend on the characteristics of the resource, but allcases of successful management involve incentives for users, rules that limitaccess and define duties and rights of participants, and methods for monitoringand enforcement. The research found that the most successful resource ...

New Findings On Primitive Shark Contradicts Current View Of Jaw Evolution

...anding of our own origins. He points out thatmany characteristics of human anatomy, such as the jaw, originated in our fishyancestors, even though we may not want to admit it. "The psychology ofevolution is interesting," he said. "People don't mind being called a primateor a mammal, but they don't like being call...

Study Defines Scope Of Vaccine-Preventable Infections

...o bacterial causes of meningitis and pneumonia,the characteristics of preventable invasive infections, and their patterns ofantimicrobial susceptibility. The results of the four-year study were publishedin the April 10, 1999, issue of The Lancet. The study's findings are crucial in formulating vaccines for Asian pop...

New Biochemical Technology Ready To Retrieve, Purify Heaviest Crude Oil

...om gasoline to plastic. Natural variation in oil's characteristics among different regions - or evenwithin the same o...tions, the biocatalysts can be adapted to theexact characteristics of different forms of crude oil, whether from California,Mexico, Venezuela, Saudi Arabia or Canada. ...

Study Ensures Effective Ways To Measure Macular Pigment Density

...tometry. Dietary patterns and demographic/medical characteristics were determined by questionnaire. This method of study was a non-invasive way to measure MPOD and also showed that MPOD can be reliably measured in a cross sectional research study. Ciulla said additional research is needed to more fully assess...

National Laboratory, National Parks And Forests Leaders Seek To Share Resources

...em tocatalog and map the microbes and the geologic characteristics of YellowstoneNational Park's many hot springs. "The project generated quite a bit of interest from the forest service people,"said INEEL program manager John Beller. "Not only did it give them an idea ofwhat associated problems they may have in the...

New Anti-HIV Therapies Needed To Eradicate HIV

... levels for 20 months or more. To investigate the characteristics ofthe HIV reservoir in these men, they measured changes in the concentrations ofHIV DNA and viral RNA in cells over time. They observed that after an initialrapid decline, the levels stabilized, indicating that viral replicationpersisted. This plat...

Building detailed map of human DNA will take more time and resources than previously thought, says Hutch researcher

...tay ontrack when chasing down genes that influence characteristics such as diseasesusceptibility and drug response. "People may be disappointed in my conclusion, because it implies we're going tohave to work that much harder, but it is simply a prediction for what resourceswill actually be needed to accomplish the ...

New Census report shows exponential growth in number of centenarians

... improve dataquality, the trends in the growth and characteristics of the very elderly arenow becoming evident, say N... to the report, the centenarians share many of the characteristics thatCensus and other researchers have noted for people age 85 and above. Mostsignificantly: Four o...

Magnetic field exposure associated with childhood leukemia

...r of magnetic field exposure based on the physical characteristics ofthe line and proximity of the residence to power lines -- was not associatedwith an increased risk of developing leukemia. However, leukemia risk waselevated for children diagnosed at less than six years of age in relation tomagnetic field exposur...

Discovery of new bird species in China, oldest beak shows evolution complexity

...es," the scientist said."Together, these and other characteristics -- and the fact that the birds livedin complex social colonies - show that they were pretty well developed. "It seems to us that this was a tree-dwelling bird, not an earth-bound,feathered dinosaur as people advocating a dinosaur origin of bi...

Swine vaccine developed by veterinary college researcher receives USDA approval for commercial use

...nd sicken most of the others. It's highlyvirulent characteristics pose a special threat for modern swine productioncenters where animals are highly concentrated. The product development and licensing caps a several-year research effort whichwas made possible by the dramatic scientific advancements in the field ofmo...

Many contaminants found in nation's streams, but few drinking-water standards exceeded, USGS report shows

...elation to land use, pesticide use and the natural characteristics of hydrologic systems can help reduce the amounts of pesticides that reach streams and ground water. Of the urban streams studied by the USGS, nearly every one had concentrations of insecticides that exceed guidelines for protection of aquatic life,...

$6.75 Million to extend primate studies of diet and aging

...d long-lived animal whose genetic andphysiological characteristics parallel those of humans. The work is beingconducted in several groups of primates whose calorie intake for the pastfive to 10 years has been reduced by about 30 percent, as well as monkeyswhose diets permit them to eat as much as they wish. The stud...

Pacific Northwest developments earn spots in top 100 list

... allows chemists to model, simulate andpredict the characteristics of chemical systems with a level of accuracy equalto that of the most sophisticated experimental approaches. Centrate Ammonia Recovery Process. - CAR is a reversible chemicalbinding process that controls the spread of ammonia - and subseque...

Modifying plant genes without foreign DNA

...cies, providing a novelapproach to modifying plant characteristics to generate new traits. The newtechnique could be applied to improving the nutritional value and productivityof foods without the involvement of foreign DNA. The technique, described by researchers at the Boyce Thompson Institute (BTI)for Plant Rese...

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