scientists 2 8

Tag: "scientists" at biology news

US life expectancy about to decline, researchers say

...t disease. The findings are contrary to what some scientists predict about human life expectancy, which assumes that past increases will continue indefinitely. Most forecasts of life expectancy are based on historical trends, but the authors conclude that such estimates fail to consider the obesity epidemic. ...

How the environment could be damaging men's reproductive health

...orrying in itself and requires more attention from scientists and the public," said Prof Giwercman. The second study by researchers from Denmark, Lithuania and Finland[2] suggests that a higher than expected prevalence of cryptorchidism (undescended testes) in Lithuania could be occurring because changing envi...

Cricket's finicky mating behavior boosts biodiversity

... the speedy speciation of the Laupala cricket, the scientists wrote in the Jan. 27 issue of Nature magazine. Fe... thus promoting the formation of new species. The scientists say their findings shed light on the role of individual choices in the evolution of species and the ...

Surprising findings reported about iron overload

UAB and international scientists studying iron-overload disorders have made the unexpected discovery that Asians and Pacific Islanders have the highest levels of iron in their blood of all racial/ethnic groups who were screened. Individuals who develop hemochromatosis/iron overload...

Scientists discuss improved biopesticides for locust control in West Africa

Two Virginia Tech scientists contributed by invitation to an international scientific meeting called by Abdoulaye Wade, president of Senegal, to identify strategies for the control of the ongoing locust outbreak in West Africa. Last year, locusts stripped fields of crops and tre...

Variation in women's X chromosomes may explain differences among individuals, between sexes

...modification known as X inactivation. Originally, scientists had assumed that the inactivation process resulted in complete silencing of the genes on the second X chromosome, Willard said, in order to leave both sexes with the same activity level, or dosage, of the genes encoded by the X chromosome. Scientists...

Programmable cells: Engineer turns bacteria into living computers

...s," he said. At some point in the future, he said, scientists will be able to choose a behavior they want from cells, and a computer program will create a genetic circuit to accomplish the task. "Then we can do an experiment to see if the community of cells is behaving as we desire. That is going to have a trem...

UCLA launches $20 million stem cell institute to investigate HIV, cancer and neurological disorders

... light on how some diseases develop. However, most scientists agree that human treatments are years or even deca...rthern California to allocate funding to stem cell scientists at universities, medical schools and research facilities. Grant applications will be available in Ma...

Wisconsin researchers identify sleep gene

...fragmented, as with humans. In other studies, the scientists also observed that caffeine has the same stimulating effects on human and fly sleep, and that similar genes are expressed in both species when they are awake and asleep. Tononi's team also conducted EEGs on the flies and found evidence of the same el...

DuPont's first biologically derived polymer receives global recognition

...teriors, engineering resins and packaging. DuPont scientists recently developed a way to make Bio-PDOTM, the key Sorona® ingredient, from corn using a new biological process that requires over 40 percent less total energy than the traditional petrochemical feedstock. It will be commercially available in 2006...

NASA links nanobacteria to kidney stones and other diseases

...tional Aeronautics and Space Administration (NASA) scientists as a potential culprit in kidney stone formation among astronauts. With the potential for future exploratory space missions to the moon and Mars, longer missions, and exposure to the elements of outer space, health is a major concern for astronauts. ...

Live fast, die young true for forests too

...journal Ecology Letters. This discovery could help scientists predict how forests will respond to ongoing and future environmental changes. "One implication of this fast turnover rate is that the world¹s most productive forests may be those likely to respond most quickly to such things as climatic change," sai...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...hesiology at Stony Brook University. Though other scientists have attempted to use PET to noninvasively monitor maternal-fetal drug exchange and pharmacokinetics (how quickly a drug is taken up and distributed among the body's organs), the PET technique alone did not provide adequate anatomical detail of the t...

Camera Traps Catch Eye of the Tiger

...or tigers on the Indonesian Island of Sumatra. WWF scientists are using camera traps to help conduct presence/ab...umatran forests, the cameras often malfunction, so scientists will be lucky if two-thirds of the pictures are of any animals. Because they had conducted thorough ...

Probing the promise and perils of nanoparticles

...faces to make them neutral instead of charged, the scientists found. And, added Banaszak Holl, "not only does engineering make them less harmful, but it also makes them better at what we want them to do. You don't lose anything; it's all a gain." More recently, Leroueil studied other types of charged nanoparti...

New online portal merges vast data on Gulf of Maine ecosystem

...w portal offers up decades of work by agencies and scientists dedicated to understanding the Gulf of Maine ecosy...t the Gulf of Maine has been out of reach for most scientists and researchers. Although research capacity has grown by leaps and bounds as a result of computer an...

Not-for-profit publishers call NIH public access rule a missed opportunity

...partner with NIH to nurture the next generation of scientists and future NIH grantees; and # It will create confusion and put authors at risk of inadvertently violating copyright agreements. "This is a missed opportunity that represents a waste of government resources," said Martin Frank, PhD, Executive Direct...

Dead zone area in Gulf could be increasing, researchers say

...than normal, researchers are reporting. A team of scientists from Texas A&M University, Texas A&M at Galveston, Louisiana State University and NASA recently surveyed the dead zone in the northern Gulf of Mexico and their findings show that the area's water contains lower oxygen levels than expected thi...

Substance protects resilient staph bacteria

...at would otherwise kill the bacteria, according to scientists at the Rocky Mountain Laboratories (RML), part of ...on and is now available online. Collaborators, all scientists at RML in Hamilton, MT, include Stanislava Kocianova, Ph.D.; Cuong Vuong, Ph.D.; Yufeng Yao, Ph.D.; ...

Great White shark evolution debate involves WSU Lake Campus geology professor

... if its ancestry rests with the mako shark. "Most scientists would probably say the Great Whites evolved from the megladon line, which existed from two million to twenty million years ago. They were huge sharks, approximately the length of a Greyhound bus and possessing teeth that were up to six inches long," ...

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