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Tag: "various" at biology news

Plutonium or greenhouse gases? Weighing the energy options

...," Ewing said. His presentation, which considers various fuel cycles, shows that nuclear power generation would need to increase by a factor of three to ten over current levels to have a significant impact on greenhouse gas emissions. "We currently have 400-plus nuclear reactors operating worldwide, and we...

Researchers make progress in studying genetic traits of India-born populations

...ndation for future studies on the genetic basis of various common diseases in Asian Indians-such as heart disease, which is highly prevalent in this population. Individuals interested in participating in this study may see details at www.usc.edu/RICADIA ....

Radiologists attempt to solve mystery of Tut's demise

...to image and preserve Egypt’s mummies and to solve various mysteries about the diseases and lifestyles of ancient Egyptians. King Tutankhamun, who ascended to the throne when he was just eight years old, was mummified and buried with other ancient royals. His tomb, filled with 5,000 artifacts, was discov...

Stormy days ahead for coral reefs

...l in different parts of the reef, incorporates the various shapes of coral colonies and calculates whether they will be dislodged during extreme weather. The research introduces a new concept ?colony shape factor (CSF) ?to translate the myriad shapes and sizes of coral colonies onto a simple scale that ...

Dust to gust

...nd blown across the Atlantic by dust. By combining various types of satellite data, Dr. Koren and colleagues from Israel, the United Kingdom, the United States, and Brazil have now for the first time managed to obtain quantitative information about the weight of this dust. Analyses of dust quantities were pe...

Viral marker of human migration suspect

...pt step with human migration, one would expect the various subtypes to group together geographically, she explains. Shackelton added that if the co-evolution of the virus and human populations were as strict as previously thought one would not find so many differences in the family trees of the virus and...

Inflammation markers identify fatigue in breast cancer survivors

...e the condition. Cancer researchers had explored various possible reasons for the persistent fatigue in breast cancer survivors, Dr. Irwin said, such as different kinds of treatment, or biological events including anemia. Dr. Irwin and his colleagues' research is the first to document an association betw...

Biotech cotton provides same yield with fewer pesticides

...s to compare ant and beetle biodiversity among the various cotton fields and the uncropped areas. The team used Geographical Information Systems (GIS) and LANDSAT satellite imagery to map the fields and evaluate plant growth in the non-cultivated areas. Plant growth can affect the biodiversity of insects f...

Solved: The mystery of flesh-eating bacteria's relentless attack

...pathology of the disease in people was typified by various degrees of a lack of white blood cells," said Hanski. After publishing their findings in the British medical journal The Lancet in 2004, the team began to search for the factor that blocked the recruitment of white blood cells during M14 infection. ...

Scientists solve 30-year-old mystery of mutant mouse's kidney woes

...llow-up studies of aqp2 to determine how important various parts of the protein are to its proper distribution in the kidney collecting duct epithelium. His lab also is looking for other genetic factors that contribute to renal diseases. ...

Master planners in brain may coordinate other areas' roles in cognitive tasks

... have specialized abilities that can contribute in various ways to completion of different tasks. They just h...if these regions have similar roles in children of various ages. They are also planning to use a new type of functional brain imaging to look at the connection...

Researchers find that bumblebees' flower choice matters

...an unparalleled data set by testing the effects of various combinations of plant species on their reproductive patterns. Twice funded by the National Science Foundation, Karron's research centers on the reproductive biology of monkey flower, a wetland plant native to Wisconsin. Karron's lab uses several ...

Key molecular signaling switch involved in allergic disease identified

...in the developed world. Researchers have developed various treatments to control allergy, but no cure has been found. The team has demonstrated, for the first time, the role of a proteolytic enzyme called ADAM10 that releases a major allergy regulatory protein from the surface of cells and thereby promote...

Test reveals effectiveness of potential Huntington's disease drugs

...results provide the first systematic comparison of various clinically relevant glutamate pathway inhibitors for HD treatment and indicate that memantine holds the most promise based on its in vitro efficacy," Dr. Bezprozvanny said. "Whole animal studies of memantine in an HD mouse model will be required to ...

Gene transfer using mutant form of good cholesterol cuts vascular plaque and inflammation

...ars-Sinai, has been studying apo A-I Milano in its various forms for about 13 years. He and his colleagues developed a synthetic version of the protein and conducted animal studies at Cedars-Sinai that led to human trials at the Cleveland Clinic in which intravenous injections were found to shrink plaque in ...

3-D ultrasound scanner could guide robotic surgeries

...ical robot. The scanner could find application in various medical settings, according to the researchers. They said the scanner ultimately might enable surgeries to be performed without surgeons, a capability that could prove valuable in space stations or other remote locations. "It's the first time, to o...

Major cancer study aims to identify protein markers for early-stage disease

...r they will study blood samples from patients with various stages of the actual disease. The researchers will focus specifically on a phase in protein development known as "post-translational modifications," which occur after the code for a gene has been translated into a protein. Initially, the protein is...

Light-sensitive photoswitches could restore sight to those with macular degeneration

...to a variety of proteins to push or pull them into various shapes, even making a protein bend in half like a tweezer. In 2006, in a cover article in the new journal Nature Chemical Biology, the researchers described for the first time a re-engineered glutamate receptor that is sensitive to light, which com...

Study defines effective microbicide design for HIV/AIDS prevention

...mputer model that can predict the effectiveness of various microbicidal recipes in destroying human immunodef...ze a critical role for the "delivery vehicle," the various polymer gels or creams that carry the active antimicrobial ingredients, in determining the success o...

Electric fish in Africa could be example of evolution in action

... They know from their previous research that the various groups of local electric fish have different DNA, different communication patterns and won't mate with each other. However, they now have found a case where two types of electric signals come from fish that have the same DNA. The researchers' concl...

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