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Tag: "returned" at biology news

Growth in the sea comes down to a struggle for iron

...ea, taking their carbon with them. The Kilo Moana returned to Hawaii after spending 42 days at sea. Early results suggest that the struggle for iron may indeed follow something like what happens in the soil. Wells and his colleagues are evaluating the data they collected and conducting additional laboratory ...

Open microfluidic and nanofluidic systems

...ed to wait several days before the sample has been returned from specialized laboratories. Other applications include customized chips for space travel in order to monitor microbes inside spacecraft or to detect life on other planets. An obvious prerequisite for such miniaturized labs are appropriate microco...

Scientists discover unique microbe in California's largest lake

... the SaltonBasin. Once the Army Corps of Engineers returned the river to itsnormal bed, the lake began to evaporate, gradually becoming one of thelargest hypersaline lakes in the United States.Because it also receives the agricultural runoff of the Imperial Valleyand municipal runoff from Mexicali, Mexico, co...

PET/MRI scans may help unravel mechanisms of prenatal drug damage

...t two hours. After the procedure, the animals were returned to their social colony to deliver their offspring. The combined images show that cocaine and/or its labeled metabolites readily cross the placenta. But the cocaine uptake distribution pattern observed in the fetus was very different from that of the...

A frog's life is food for thought

...he ingestion of the first meal the gut had all but returned to its pre-aestivation state, and by the completion of digestion of the first meal the gut was operating on par with that of non-aestivating frogs," she said. "This rate of rectification of gut morphology is virtually unparalleled with the small int...

Rare surgery performed to remove pancreas, prevent diabetes

...the University of Alabama at Birmingham on Tuesday returned a patient's own insulin-producing cells to him aft... a specialized UAB laboratory. The cells were then returned to the operating room and infused into the patient's liver, where they have begun to produce insulin...

Revolutionary nanotechnology illuminates brain cells at work

...so saw the removal of the glutamate as the neurons returned to normal ready to fire again." "This is a tremendously exciting technology," remarked Wolf Frommer, leader of the FRET team at Carnegie. "I'm anxious to see what we can learn about the vast complexities of the brain over the coming years, such as t...

Genetic defects give the immune system the green light to attack the pancreas

...ss the globe: Silvia Zucchelli, Ph.D., who has now returned to Italy; Phil Holler, Ph.D., from the U.S.; and Tetsuya Yamagata, M.D., Ph.D, from Japan. The genetic defect keeps the body from properly dealing with “errant?immune cells that it normally eliminates by a process called immunological tolerance. The...

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

...t Etosha more than a decade ago. In July 2004, she returned with husband Tim Rodwell, a Stanford-educated physician, to oversee the most sophisticated seismic experiment to date--an elaborate field study funded by Stanford's interdisciplinary Bio-X program. Joining them in Namibia were four colleagues with a...

Africa to take it on chin again with climate change

...which experienced catastrophic drought until rains returned in the 1990s, could experience wetter monsoons for decades to come. However, drought across southern Africa is projected to intensify further. Oceanic warming consistent with an increase in greenhouse gases appears to be a factor in these expected 21...

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

... under the belly of a 20-pound adult female that's returned to spawn, Quinn says. He's almost as likely to be a "winner" as the full-size males that are releasing their sperm in a competitive frenzy as the female deposits her eggs. And the tiny male has avoided the harrowing journey taken by most salmon to t...

Cellular Defects in Premature Aging Disease are Reversible

...ally, the nuclei lost their wrinkles and lobes and returned to a natural ellipsoid shape, and the expression of other nuclear proteins was also restored to normal levels. "It's amazing that we could take a cell that looked about ready to die, and a few days later it was healthy and ready to divide again," sa...

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

...ntory biodiversity throughout the seas. The Healy returned to port July 26 with thousands of specimens from the Chukchi and Beaufort Seas and the Canada Basin, a vast bowl walled by steep ridges and lidded with ice. "The Canada Basin is one of the world's most isolated ocean areas," says Dr. Rolf Gradinger,...

Massey Cancer Center researcher helps to identify a piece of the cancer puzzle

...lliam A. Barton, Ph.D., a VCU alumnus who recently returned to Richmond to continue his research. "Once we understand the shape and characteristics of proteins involved in tumor growth and development, researchers can identify therapeutics that may eventually lead to cures for cancer." ...

Studies reveal how plague disables immune system, and how to exploit the process to make a vaccine

...ope killing nearly one-third of the population. It returned with a slightly reduced death count about once a generation for centuries. Although far less common now, the plague has not entirely gone away. There are fewer than 2,000 cases a year worldwide, including 10 to 20 each year in the western United Sta...

Amazon source of 5-year-old river breath

...e enormous amount of carbon dioxide silently being returned to the atmosphere is far younger than carbon being carried downstream," he said. "Previous studies failed to detect the rapid recycling of forest carbon because they never dated the invisible greenhouse gas as it is literally exhaled by the river org...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...hertz "pings" that bounced off the zooplankton and returned data to the instrument's receivers. It's a system not unlike those used in ultrasound procedures for biomedical applications. "One of the most amazing aspects of this research is that we were able to see 375,000 of these animals, many as small as on...

Newly discovered genetic disease sheds light on body's water balance

...owed out of their bodies and sodium concentrations returned to normal, both babies recovered. They continue to be followed by the UCSF team. Next Gitelman, Rosenthal and Feldman took blood samples from each baby boy and his mother to search for the cause of the unique disorder. They learned that Raymond Fenw...

Female volunteers prepare for a second 'bedrest'

...re progressively 'released' as they were gradually returned to an upright position at the space medicine clinic at the French Institute for Space Medicine and Physiology (MEDES) in Toulouse. For two months, the twelve women hade been lying in beds inclined at an angle of 6°, with their feet slightly higher th...

Otter adaptations: How do otters remain sleek and warm

...e studies of mammal hair in his spare time and has returned to Isle Royale once since his sabbatical, doing radio telemetry of radio-collared wolves and collecting samples of their scat for DNA analysis. "I discovered that it can be very enjoyable and stimulating to expand your scientific horizons beyond the...

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