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Tag: "new" at biology news

'Virtual Patient' to simulate real-time organ motions for radiation therapy

...as a National Science Foundation CAREER grant. The new four-year, $2 million grant is funded by the National Library of Medicine, which is part of NIH....

Philandering female felines forgo fidelity

A new cheetah study by the Wildlife Conservation Society and the Zoological Society of London has found that many cheetah litters have more than one father. While promiscuity in the animal kingdom is generally a male thing, researchers for the Wildlife Co...

Moths mimic sounds to survive

...ounds of their bad-tasting cousins, according to a new Wake Forest University study. Published in the May 29 issue of the Proceedings of the National Academy of Sciences, the study is the first to definitively show how an animal species uses acoustic mimicry as a defensive strategy. The research was ...

Human stem cell treatment restores motor function in paralyzed rats

...rch aims to replace these lost neurons by grafting new spinal stem cells, which repopulates the pool of degenerated neurons.” For this study, nine of 16 rats with induced spinal cord ischemia were injected with human spinal stem cells 21 days after paralysis. The other seven were injected with mediu...

Scientists discover 5 new species of sea slugs from the Tropical Eastern Pacific

Cuthona behrensi, one of five new species of aeolid nudibranchs discovered in the Ea...tors two more years to identify the animals in the new collection by comparing them to existing collections, consulting specialists and using a scanning el...

Smallpox outbreak: How long would it take for vaccines to protect people? Would it work?

...g Americans by stimulating an immune response? A new national study led by Saint Louis University Schoo... Frey said this research compares the ability of a new investigational smallpox vaccine called IMVAMUNE® to produce a strong immune response against smallp...

Arctic ice retreating more quickly than computer models project

...ected by even the most advanced computer models, a new study concludes. The research, by scientists at th...e to natural variations in the climate system, the new study indicates that greenhouse gases may be playing a significantly greater role. There are a nu...

Resistant HIV quickly hides in infants' cells

...st be paired with further studies on available and new therapies. As Persaud remarked, "It is important ...ther-to-child transmission but also development of new antiretroviral agents for pediatric use, particularly against highly resistant infection. "There is ...

Statin treatment improves spatial memory in mouse models of Alzheimer's

... in this mouse model of Alzheimer’s and discovered new information about the neurochemical basis of the beneficial effects. Various studies have found evidence of a strong relationship between memory deficits and high levels of cholesterol in the brain, suggesting that statin’s effects on memory might be...

Puzzling plankton yield secrets to role in evolution/global photosynthesis

... DNA sequences from tiny green algae have provided new insights into the mystery of how new species of plankton evolve—and further highlights their critical role in managing the global cycling...

Mice with a migraine show signs of brain damage

...intact brain of a mouse. They combined that with a new technique to precisely measure how brain cells allocate and use energy. ...

Catching cancer's spread by watching hemoglobin

...ce that can potentially assist cancer diagnosis, a new optical technique provides high-resolution, three-...ted in Baltimore at CLEO/QELS, May 6 ?May 11. The new laser-based method, developed at Duke University, should provide 3-D images of blood vessels in rela...

How to look at dinosaur tracks

A new study appearing in the May issue of The Journal of Geology provides fascinating insight into the factors geologists must account for when examining dinosaur tracks. The authors studied a range of larger tracks from the family of dinosaurs that includ...

A cherry on top: Tart cherries may alter heart/diabetes factors

...e good for more than just making pie, according to new data from an animal study conducted by University ... anthocyanins that are found in tart cherries. The new results were given today in an oral presentation at the Experimental Biology 2007 meeting in Washing...

Climate change was the cause of Neanderthal extinction in the Iberian Peninsula

...rthal extinction. This work is a contribution to a new scientific current ?leaded by Dr. Clive Finlayson, from the Gibraltar Museum ?according to which Neanderthal isolation and, possibly, extinction were due to environmental factors. ...

Hearts of male and female rainbow trout are different

...ac characteristics and function in adult humans. A new research study begins to close the gender gap in fishes, and finds that sex differences in cardiac performance and metabolism exist in rainbow trout. These differences occur at a young age and are only realized when the trout heart is contracting and...

Ecology in an era of globalization

...cological knowledge system to facilitate access to new and existing sources of ecological information throughout the world. Frederick Meyerson (University of Rhode Island, US), Leticia Merino (Universidad Nacional Autónoma de Mexico, Mexico City, Mexico), and Jorge Durand (Universidad de Guadalajara, ...

Machine preservation may promote more organ sharing

...eater use and more sharing of organs, according to new research by Wake Forest University Baptist Medical Center. "By placing kidneys on a portable pump, preservation times can be safely extended to permit more time for sharing organs across the country," said Robert Stratta, M.D., lead researcher of th...

Madagascan tropical forests return thanks to better management and well-defined ownership

...kholm university and one of the authors behind the new study. The new study points to the large capacity of dry tropical forests to spontaneously regenerate if existing l...

Technique monitors thousands of molecules simultaneously

...hemically addressable chips being used represent a new environment for synthetic organic chemistry, chang... structures? "We've worked very hard to develop new chemical reactions that allow us to make new structures that are either difficult or impossible to m...

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