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Tag: "biggest" at biology news

'Dead zone' summer killed billions of ocean state mussels

... well off Australia, Brazil, and Japan. One of the biggest "dead zones" is in the Gulf of Mexico, where it has grown to an area as big as New Jersey. Altieri and Witman said lessons from Narragansett Bay could be applied to other "dead zones." "When you lose a foundation species such as mussels ?which filt...

Leave it to salmon to leave no stone unturned

... long and tip the scales at 45 pounds or more. The biggest nests are nearly a foot and a half deep and extend up to 17 square yards –about the size of two parking-lot stalls. The rims around these craters can be the bane of boaters who, even with boats meant to navigate in shallow waters, can find their vess...

Relationship of brain and skull more than just packaging

... people often use were highly variable and had the biggest errors in reproducibility," says Richtsmeier. "We eventually chose brain locations that were easier to identify reliably such as the most posterior point or the centroid of small neural structures." The researchers did not compare one brain to anoth...

Flu not the only germ threat this time of year

... hundreds of thousands of children annually as the biggest cause of bronchiolitis and pneumonia among infants and children under 1 year of age. For more than a decade Falsey and Walsh, who are infectious disease experts at Rochester General Hospital, have been on the hunt for a vaccine against RSV. While th...

Researchers solve mystery of how nuclear pores duplicate before cell division

...t author Maximiliano D'Angelo, Ph.D. "They are the biggest protein structures within a cell and control the entire traffic in and out of the cell's nucleus, from tiny molecules such as histones, which bind DNA, to huge structures such as ribosomes," he explained. To form the transport channels that span th...

Amazon rainforest greens up in the dry season

The Amazon rainforest puts on its biggest growth spurt during the dry season, according to new research. The finding surprised the researchers. "Most of the vegetation around the world follows a general pattern in which plants get green and lush during the rainy season and then during the d...

'Bad' enzymes may wear white hats after stroke

...ence in how we think about treatment. "One of the biggest problems facing stroke patients is that it's a neurodegenerative disorder, but also a medical emergency," he explained. "With other neurological disorders, such as Alzheimer's disease, the disease process is much slower. This study suggests that with...

Taking a bite out of a fellow worker helps wasps recruit new foragers

...all kinds of stresses and dangers, is probably the biggest change these animals face in their lives," he said. O'Donnell plans future studies to learn what determines which members of a colony are doing the biting and which are being bitten. He suspects that biting recipients are recognized based on somet...

Computers to save unique type of American red squirrel

...ial computer model which in time will pinpoint the biggest threats to the rare Mount Graham Red Squirrel. D...a viable red squirrel population. Here, the reds' biggest threat is the introduced grey squirrel, which out-competes them for food and transfers a deadly viru...

Free HIV tests cheaper than charging when goal is preventing AIDS

...ions with limited resources. "Cost is probably the biggest barrier, but if the goal is to prevent HIV infection, free HIV testing and counseling provides outstanding bang for your buck," he said. "Right now there is a lot of emphasis on treatment, which is appropriate, but prevention is also important, and...

Mouse study: New muscle-building agent beats all previous ones

...e, weekly injections of the new agent provided the biggest effect on muscle growth after just two weeks at the highest dose given (50 milligrams per kilogram mouse weight). Depending on the muscle group analyzed, the treated mice's muscles were bigger than untreated mice by 39 percent (the gastrocnemius [cal...

Polio vaccination strategies assessed as eradication nears

...e politics and complacency as ultimately being the biggest threats to polio eradication, they conclude that choosing an appropriate vaccination strategy to prevent poliovirus re-introduction is an important and unavoidable task. Founded in 1904, The Journal of Infectious Diseases is the premier publication ...

Mining biotech's data mother lode

...many of the companies there said that this was the biggest problem they face." Currently, pharmaceutical and biotech companies produce vast quantities of raw data on the problems that interests them. Microarrays process thousands of samples to discover what genes are over expressing. These over-expressing g...

Stroke treatment a step closer after trial

...ffectiveness next year." Stroke is the UK's third biggest killer and the biggest cause of disability, affecting 100,000 people each year. It accounts for 6.5% of total NHS and socia...

The shape of things to come: Morphology database going global

...ey do research," Ronquist said. "That's one of the biggest challenges - changing habits. We need to convince scientists that this is a better way of working with their material and presenting their research. It's a matter of having a system that works well with lots of interesting images. That will go a long...

Katrina floodwaters not as toxic to humans as previously thought, study says

...tead, high levels of bacteria and viruses were the biggest human threat, not exposure to chemicals, Pardue and his associates say. The researchers obtained 38 floodwater samples from widespread sections of New Orleans, primarily in the area of the city known as the "East Bank," where the main human contact ...

Science's Breakthrough of the Year: Watching evolution in action

...anzee genome and another international effort, the biggest map to date of single-letter variations in the human genetic sequence, hoping to get a better glimpse of the human species' evolutionary history. The two studies give scientists new material for studying conditions from AIDS to heart disease, and may...

Delaware scientists make significant advance in study of small RNAs

...r number of sequences identified, Meyers said "the biggest surprise in the findings is the diversity." He said that their data indicated that the regions of the chromosomes where people had speculated there was not much transcriptional activity turned out to be sites of tremendous amounts of small RNA activi...

Sudden change in social status triggers genetic response in male fish, study finds

... says. "They keep track of who's who and who's the biggest so they can take the opportunity to reproduce. An animal that goes through that kind of transition has to recall how he relates to other males, and also has to be aware that he can change. This raises a bigger question about sophisticated social awar...

Brazilians sequence genes of pig and poultry killers

...nal of Bacteriology. Brazil is the world's second biggest producer of chicken meat. According to the Brazilian Agricultural Research Corporation (Embrapa), which participated in the sequencing study, Brazil produces 7.5 millions tonnes of it each year. Reference: Journal of Bacteriology 187, 5568 (2005) ...

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