Tag: "over" at biology news
Study begins to reveal clues to the cause and progression of sepsis
...ence rates of sepsis have been steadily increasing over
the years, little is known about the condition. Pa...uation is similar to what this country experienced over
50 years ago with heart disease and stroke we knew that too many people were dying of cardiovascula...
Multinational research: protecting ecology means understanding people, too
...d, because a wave of retirements is about to sweep over
those U.S. agencies where long-time, experienced biologists have been studying the ecological problems for decades. More than one half of the Senior Executive Service members at the Department of the Interior, U.S. Department of Agriculture-Forest S...
Clones on task serve greater good, evolutionary study shows
...ollow the family genetic rules, with some towering over
the group, and others being vertically challenged. And like family reunions, the competition is decided as everyone compares pictures of the grandchildren. In Arabadopsiss case, the solid Family A produces more children or flowers, than the errati...
Which came first, the moth or the cactus?
...ggesting that one mutualist may exert some control over
the other's population increases, such that neither unbounded growth nor overexploitation ensue. "I have always been interested in the community ecology of mutualism -- the larger puzzle -- and this moth-cactus relationship is just one piece of tha...
Features of replication suggest viruses have common themes, vulnerabilities
... some features of replication that appear to cross over
among many viruses." Using powerful electron mic...ng organelles, Ahlquist explains. "The virus takes over
most of the available membrane. The protein creates a shell inside the spherule" to provide stabilit...
New textbook illuminates the close links between evolutionary and molecular biology
...y, describe the origin and diversification of life over
the past 3.5 billion years, and explain the fundamental mechanisms underlying evolutionary change. The final section is devoted to human evolution and diversity, merging recent insights from molecular techniques with paleontological evidence. For a...
No evidence that widely prescribed statins protect against prostate cancer
...prostate cancer, especially if the drugs were used over
a long period of time. But other studies on statin use and prostate cancer risk have had mixed results, according to Hall. To study a narrow question − whether statin use reduces androgen concentrations in the blood − the researchers e...
Rain forest protection works in Peru
...arch also showed an increase in forest disturbance over
the last couple of years of the study, primarily i...ing Amazon countries, but the extent of the damage over
the region has not been thoroughly assessed using high spatial resolution satellite data until this ...
deCODE discovers cause of major subtype of glaucoma
... on the front of the eye. Between 10-20% of people over
the age of 60 are believed to have some degree of exfoliation syndrome, and perhaps more than half of these individuals will go on to develop exfoliation glaucoma. The progression of glaucoma can be slowed using various medications that promote the d...
Climate change and permafrost thaw alter greenhouse gas emissions in northern wetlands
...kpiled carbon that accumulated from the atmosphere over
many thousands of years. Peat blankets the permafr...arbon to the atmosphere originally predicted. But over
time high methane emissions will balance or outweigh the reduction of carbon in the atmosphere. ...
OHSU turns mouse into factory for human liver cells
... isolated primarily from human cadaver livers left over
after high-quality livers needed for transplants a...em for testing," Grompe said. "You have no control over
when you get them, and you have no control over
the quality when you get them. Many batches of cells...
Penguins march into new park
... became the owner of Karukinka a protected area of over
half a million acres in southern Chile on Tierra del Fuego a gift of Goldman Sachs in 2004 which contains some of the worlds last remaining wilderness areas at the southernmost tip of South America.....
A unique arrangement for egg cell division
...ithout such centrosomes. Tracking spindle assembly over
time with a high resolution microscope in live mouse oocytes, Ellenberg and his PhD student Melina Schuh found that the missing centrosomes are replaced by a flexible system of many small microtubule organising centres (MTOCs) in oocytes. Like centro...
Proteaceae spread by continental drift and transoceanic dispersal
...ue known as molecular dating to DNA sequences from over
40 representatives of the family from all southern continents. Using carefully selected fossils that are of known age and affinity, the mutation rate of the DNA sequences was calculated, allowing these scientists to provide age estimates for evolutio...
European Science Foundation's Forward Look reaches out beyond the endless frontiers
...duce safe foods in a sustainable and equitable way over
a medium-term perspective (25-40 years). Developing such scenarios requires the involvement of both many scientific disciplines and a broad range of different stakeholders in the food chain. The scenarios activity will raise awareness within Europe a...
New test improves detection of liver cancer
...test enables accurate detection of liver cancer in over
50% of the cases for which previous diagnostic tests have not been able to provide a definitive answer. Liver cancer Hepatocellular carcinoma (HCC) is the most prevalent primary liver cancer. The disease most often appears following a chronic in...
Carnegie Mellon's Peter Adams receives EPA research grant
...negie Mellon, said he will build integrated models over
the next three years that simulate air pollution f...f new coal-powered plants is supposed to be coming over
the horizon. As recently as May, U.S. power companies announced intentions to build as many as 150 n...
Study finds gender differences in renal and other genes contributing to blood pressure
...am in Southern California. This approach provides over
90 percent statistical power to detect genes contr...pressure variation. The research team also scored over
60,000 genotypes at 35 gene locations involved in two major pathways regulating blood pressure, kidn...
... but that neither had a significant cost advantage over
the other. Comparing the costs of biofuels is complicated by the fact that most studies rarely employ the same bases for economic evaluations. Differences in assumed plant size, biomass costs, method of project financing, and even the year in which...
Satellite tracking reveals threats to Borneo pygmy elephants
...t through the dense jungle was found too difficult over
long periods. The collars sent GPS locations to a WWF computer via satellite as often as once a day. This was the first long-term study done of Borneo pygmy elephants. Its amazing that we still know so little about one of the biggest land mammals ...
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