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Tag: "return" at biology news

Growth in the sea comes down to a struggle for iron

...ry experiments. UMaine scientists are planning to return to the Pacific in 2007, but they have a different destination in mind. Work by Japanese and Canadian researchers has already shown that the consequences of iron additions may vary from the eastern to the western North Pacific. Even with additional ir...

Controversial drug shown to act on brain protein to cut alcohol use

...vulnerability ofrecovered alcoholics or addicts to return to uncontrolled drinking ordrug use when exposed to the drug of abuse months or even years afterbreaking the habit.In this analysis, the researchers provided alcohol to rats until theyhad become "experienced" daily drinkers. They then withheld alcoho...

The secret to longevity in tubeworms

...rtia from which it draws its sulfide. Without this return of sulfate, the model predicts an average lifespan...of actual living tubeworms. To date, the proposed return of sulfate to the sediments through the roots is only a hypothesis--albeit one with much to support ...

Critical role in programmed cell death identified

... the process that commits cells to the point of no return happens quickly. Conradt said it's the clearest confirmation yet that mitochondrial fragmentation is critical in killing cells. C. elegans worms are a convenient model system, Conradt explained, with a well documented cell lineage that facilitates g...

The Shapes Of Life: NIGMS Project Yields More Than 1,000 Protein Structures

... milestone for the PSI, and it shows an impressive return on the investment in the technology and methods for rapid structure determination,?said Jeremy M. Berg, Ph.D., director of NIGMS. “These structures are interesting in their own right and provide the basis for modeling many important proteins.?/p>...

Boosting HIV screening can increase survival and is cost effective

...lation, one-time screening could deliver excellent return on investment. "HIV is a severe disease that, left untreated, produces substantial morbidity and mortality," said Paltiel. "It has a long asymptomatic phase, which can be diagnosed using very effective, inexpensive tests. Most importantly, early det...

Applied Biosystems Introduces Advanced Gene Expression Service Provider Program

...ific research while helping them achieve necessary return on investment, was announced today in advance of this weekend’s annual World Microarray Congress in Vancouver, Canada. The Applied Biosystems Expression Array System forms the technical platform for the program and can be optionally bundled with com...

Harnessing microbes, one by one, to build a better nanoworld

...ific research while helping them achieve necessary return on investment, was announced today in advance of this weekend’s annual World Microarray Congress in Vancouver, Canada. The Applied Biosystems Expression Array System forms the technical platform for the program and can be optionally bundled with com...

Dead zone area in Gulf could be increasing, researchers say

...the northern Gulf of Mexico," he adds. "We plan to return there in May, July, August and October to collect more data and see what condition the dead zone area is at that time." ...

A frog's life is food for thought

...o not feed and survive on fat reserves. The frogs return to the surface after heavy rain, sometimes for as little as a week - to find food and build up fat reserves. During the study Ms Cramp and her supervisor Professor Craig Franklin from the School of Integrative Biology collected frogs from areas west...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...4 experiment and plan to gather new data when they return to Mushara waterhole in May 2005. That experiment will include a new study on the impact of acoustic and seismic estrus calls on the dominance hierarchy among bulls. "Our work is really at the interface of geophysics, neurophysiology and ecology," s...

A little stress gives beneficial oomph! to immune system

...ed in some other way ?activated leukocytes usually return to their resting position in a few hours." Some of the mice in the study were restrained in clear plastic ventilated tubes for two-and-a-half hours. These mice ?the stressed group ?could not turn around in the tube, but they could move forward and b...

To sea or not to sea: When it comes to salmon sex, size sometimes doesn't matter

...me is true of fish that have gone to sea but don't return to their stream of origin to spawn, instead strayi...and sisters from the same parents don't mature and return from sea at the same time, a way of "straying in time" so that a given pair hasn't lost all their de...

Cellular Defects in Premature Aging Disease are Reversible

...ved in multiple cell types, and that the cells can return to normal, independent of cell division, bolsters this possibility. "Some tissues in our body do not divide," Misteli pointed out. "So demonstrating that we can rescue the normal phenotype without cell division means this procedure could be effective...

Penn Researchers Use Robotic Surgery

...ith decreased bleeding, less pain, and are able to return to work sooner," said otorhinolaryngologist Neil G. Hockstein, MD, who served as lead investigator for both studies. "I saw the potential to apply the attributes of surgical robotics to the treatment of head and neck cancer and we've successfully dev...

Two new retroviruses—transmitted from animals—identified

...ith decreased bleeding, less pain, and are able to return to work sooner," said otorhinolaryngologist Neil G. Hockstein, MD, who served as lead investigator for both studies. "I saw the potential to apply the attributes of surgical robotics to the treatment of head and neck cancer and we've successfully dev...

Census of Marine Life explorers surprised by diversity, density of Arctic creatures

...ts, benthic box cores and an ice corer. They also return with the most comprehensive and best-resolution imagery under the ice, in the water column and at the seafloor of the Canada Basin. "Modern technology has opened a window on this amazing world for the first time," says scientist Dr. Russ Hopcroft of...

Hopkins AIDS experts issue warning about global efforts to provide drug therapies

...hreatening sexually transmitted diseases. Eager to return soldiers to active duty, wartime needs outweighed civilian concerns, but this did not sway public opinion that the military was wasting its share of medication. "While the lack of a plan is the worst-case scenario, even a plan with no public input c...

Brain Scan Study of Smokers Reveals Signature of Craving

...smoking habit and also serve as strong triggers to return to smoking for those who have quit," McClernon added. "As we begin to understand the underlying brain processes, we may discover new methods for manipulating those responses to better help smokers quit." While scientists have thought that nicotine i...

Amazon source of 5-year-old river breath

...ars old," Aufdenkampe says. "They assumed that the return of this forest carbon to the atmosphere must be a slow process that offered at least temporary respite from greenhouse effects. "As part of the largest radiocarbon age survey ever for a single watershed, we show that the enormous amount of carbon di...

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