Tag: "scientists" at biology news

Newborns have ear preferences, too

...after infants are at least four month old. So two scientists who screened thousands of newborns as part of a project to optimize infant hearing tests were startled when they realized their data show that infants do have stimulus-related ear differences from birth. "We don't think that these differences are an...

Researchers discover why mutant gene causes colon cancer

...d, colon cancer can result. "For a long time, scientists believed they knew what the APC gene did that it regulated cell growth and division but now we know we've been missing a big piece of the picture," reports David Jones, Ph.D., principal investigator of the study and leader of HCI's Colon Cancer Sci...

Early detection hope for eye disease

...tion. Spectral imaging is unique because it allows scientists to take images taken at specific wavelengths. Crucially, wavelengths between 580nm and 600nm reveal the oxygenation state of the blood vessels in the eye, telling doctors which areas are healthy and which might be diseased. Dr. Andrew Harvey, one of...

Story tips from the Department of Energy's Oak Ridge National Laboratory, September 2004

...ures and ocean depths of about 500 meters and some scientists see them as an energy source that could provide a ...ies of airborne particles and immediately provides scientists data regarding the composition of the air particulates. The instrument provides more accurate and co...

New research suggests link between maternal diet and childhood leukemia risk

...ldhood leukemia risk. A growing number of scientists believe that genetic changes linked to cancer later in life begin in the womb. "It goes back to the old saying to expectant mothers, 'You're eating for two,'" said co-author Patricia Buffler, U.C. Berkeley professor of epidemiology and head of the fe...

Sandia experiments may reduce possibility of future water wars

...e greenhouse facility to work with Sandia and with scientists and the communities on both sides of the border to develop technologies to help improve the quality of life." Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin company, for the U.S. Department of Energ...

A new protein is discovered to play a key role in cancer progression

...has not been fully understood. For the first time, scientists at Memorial Sloan-Kettering Cancer Center have discovered the biologic function of the cytoplasmic form of the Promyelocytic Leukemia protein (PML), and identified it as an essential factor in maintaining TGF-b signaling. Their findings, published in...

Smac-ing back at cancer cells

...ompound 3, turned out to be much more active." The scientists believe the twinned molecule is more active becaus...tosis-triggering activity revealed itself when the scientists introduced it into cultures of human glioblastoma cells. "We picked human glioblastoma because it is...

Do genes respond to global warming?

...d population dynamics are increasingly understood, scientists know little about how species respond to climate change at the genetic level. Now it appears that climate change can shape genetic diversity. Elizabeth Hadly and colleagues have analyzed three different dynamic processes--environmental change, popula...

Fossils reveal direct link between global warming and genetic diversity in wildlife

For the first time, scientists have found a direct relationship between global wa...cket gophers prefer relatively wet grasslands, the scientists expected to see a decline in the population of both species during the Medieval Warm Period when the...

Imitative parrots just might tell you it's all in the tongue

... specialized vibrating organs in their throats.Now scientists at Indiana University and Leiden University in The...n an A and an O inhuman speech," Beckers said. The scientists also believe they are the first to identify four acoustic"formants" in parakeet sounds. Formants are...

Genetic map of important tree genes outlined

... the entire Populus genome DNA sequence, will help scientists find specific genes in a matter of minutes using computational approaches. Such discoveries would have taken decades or centuries prior to these databases, Strauss said. "Once you know a lot of gene sequences and can study thousands of genes at a ti...

How do you mend a broken heart?

...S$6 million grant for cardiovascular research. The scientists will investigate the ability of heart muscle to re...sfully used in cell-based therapies. From Germany, scientists Stefanie Dimmeler and Andreas Zeiher (Goethe University, Frankfurt) have pioneered human trials with...

$18 million bioinformatics center to become weapon against deadly diseases

A computer database designed to help biomedical scientists identify and exploit the weak spots in scores of d...al Microbial Pathogen Data Resource Center to help scientists to accelerate their research into the biology and evolution of deadly microorganisms and develop met...

Broken arms and collateral damage: clues to predator-driven evolution

ANN ARBOR, Mich.---Ever since Darwin's day, scientists have been trying to understand how interactions among living creatures---competition and predation, for example---drive evolution. Recent work by paleontologists Tomasz Baumiller of the University of Michigan and Forest Gahn of the Smithsonian's Nati...

Identifying tick genes could halt disease, bioterrorism threat

...y could be introduced and conveyed to people." The scientists involved in this project have formed the Internati...issues in the tick. These samples will provide the scientists with the first clues as to the types of genes present in ticks and how gene expression changes when ...

Rensselaer marks the opening of the center for biotechnology and interdisciplinary studies

...y Studies, we have created a gathering place where scientists and engineers from various disciplines will explore at the intersection of the life sciences, with engineering and the physical and information sciences, thereby accelerating discovery and ultimately enhancing the quality of life for all people." R...

Genuine stem cells found in skin might treat hair loss, wounds

...em cells' natural capacity for replenishing cells, scientists hope to advance on new therapies designed to repair or replace damaged tissues and organs, said the researchers. In mammalian skin, each hair follicle contains a reservoir of stem cells, known as the bulge, which can be mobilized to regenerate the ne...

Optimizing protein's 'death domain' halts leukemia in laboratory study

...been harnessed to kill leukemia cells in mice, say scientists at the Dana-Farber Cancer Institute. The discovery...hey administered the reinforced BH3 alpha helices, scientists noted that the glowing regions representing the leukemia cells retreated as the cells died, and the ...

The birth of a beak

...ells and molds them into specific organs will help scientists make progress in tissue engineering." The next step, says Chuong, is to look into how these areas of cell proliferation are localized physiologically, "an issue that's also of concern to cancer research," he adds. In addition, he and his colleagues w...

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