Tag: "role" at biology news

Spring through fall, cities are greener longer than neighboring rural regions

... to population density may play the more important role in the observed effects. The data do, however, show that "greenup" changes in surrounding rural areas are linked to city size -- the larger the city, the longer the reach of the extended greenup effect. To date, more than one-third of the land sur...

American Society of Mammalogists honors CI president Russell Mittermeier with Aldo Leopold award

...ld Wildlife Fund-U.S. for 11 years, where his last role was as vice president for Science. His other awards include the Order of the Golden Ark from His Royal Highness Prince Bernhard of the Netherlands (1995), the Grand Order of the Southern Cross from the President of Brazil (1997), and the Grand Sash ...

Study finds anti-HIV protein evolved millions of years before the emergence of AIDS

...against mobile genetic elements and may now play a role in defending against as-yet-unknown viruses. Malik said that there is a good lesson to be learned from his lab's research approach. "If you study what most people consider harmless oddities of the genome and host defenses against them, you may uncove...

The beak of the squid

...s to plants and mammals, RNAi plays a multifaceted role in molecular biology by silencing genes through ch...ermates. In contrast to the critical developmental role of Ago2 revealed by these findings, work by researchers elsewhere has shown that other Argonaute fam...

Study reveals surprising 'remodeling' property of gene regulation process

... was once thought." The study also suggested a new role for the nucleosome as a regulator of gene expression. "We now know that nucleosomes mark territory," said co-author Dr. Brian Strahl, assistant professor of biochemistry and biophysics in UNC's School of Medicine. "This chromosomal remodeling allows ...

Plant gene discovery could enhance plant growth, reduce fertilizer needs and phosphate pollution

...ocused on learning which genes in the plant play a role in establishing the symbiotic relationship and of those that regulate the transfer of phosphorous into the plant. In addition to advancing our understanding of nutrient uptake by plants, this work reveals the molecules behind the scenes of a fascina...

Casanova or caveman: Scientists isolate nerve cells that choreograph male fly's courtship behavior

... genes that control sexuality in flies also play a role in directing human sexuality? "If you look at the basics of fly behavior, you find an innate ability to recognize somebody who is the right species and is the right sex," Baker said. "You tap them and get their attention, you play them a love song an...

UCI study reveals gene linked to breast cancer can suppress tumors

...y has identified a novel and potentially important role as a tumor suppressor. The researchers only studied the tumor-suppressing role of BRCA1 in breast cancer. Mahnaz Razandi and Ali Pedram of UCI and Dr. Eliot Rosen of Georgetown as...

UNC researchers awarded $8.65 million from National Institute on Aging

... the molecular basis of blood vessel aging and its role in the development of vascular disease, including ...icine and president of UNC Physicians, studies the role in heart disease of "reactive oxygen species," or free radicals, including how these molecules are ...

Environment influences learning: U of T study

The environment plays an important role in memory retrieval, says a new University of Toro...entified a mutation that affects the environment's role in memory recall. When you test and train the worms with this mutation in a different environment, t...

Ancient brewery discovered on mountaintop in Peru

... beverage similar to beer that played an important role in ritual feasting and drinking during Peru's first empire. Ancient Peruvians made chicha with local grains and fruit, which is quite different from today's commercial beers typically made with barley and hops. "We believe this important find may b...

NIH renews funding for continued Rb2 tumor suppressing gene research at Temple

...of Health (NIH) to continue his exploration of the role the tumor suppressing gene Rb2/p130 plays in cancer. An internationally recognized researcher in the genetics of cancer and gene therapy, Giordano discovered Rb2/p130 in the early 1990s while serving as a member of Temple's School of Medicine faculty...

Hunt for a new plant hormone points to carotenoids

...nervous system, so hormonal signals have a greater role to play. Darwin was instrumental in discovering th...xistence of one such novel plant hormone. The main role of this hormone is to regulate the degree of shoot branching. The hormone is apparently made through...

Leptin and obesity

...e known that leptin plays an important fat-burning role in humans. But the map of leptin's path through the body the key to understanding how and why the hormone works is still incomplete. Now a small but critical section of that map is charted, based on new research conducted at Brown Medical School an...

NSF awards $10 million in grants to ocean sites for long-term ecological research

...ch of the western United States, and plays a vital role in the economy of myriad coastal communities," says Taylor. Understanding the mechanism of change in coastal ecosystems is important to the management of living and non-living resources in the coastal zone, scientists believe. "In the California Cur...

CBEN wins grant for undergraduate nanotech course

...of nanotech itself," Kulinowski said. "The central role played by the anthropologists signifies the importance of engaging our students in exploring the social dimensions of technology development."...

Ocean scientists assess impact of seismic pulses in effort to protect whales

...s diverse as earthquake prediction and the ocean's role in the carbon cycle. Maya Tolstoy, lead author of ... say, is because reverberations play a significant role in received sound levels in shallow water, which had not previously been incorporated into the model...

Children's Hospital Boston receives more than $10 million to help make smallpox vaccine safer

.... CHB's Division of Immunology will play a leading role in a nationwide research network, launched by the ...CHB, will use animal models to further examine the role of skin abnormalities. His team will compare immune responses to the vaccinia virus with responses t...

Scientists pinpoint molecules that generate synapses

...s have found a family of molecules that play a key role in the formation of synapses, the junctions that l...onstruction of synapses. Umemori confirmed FGF22's role by showing that mice in which FGF22 was inactivated failed to grow synapses; conversely, when added ...

First International Scientific Conference on Childhood Leukaemia

...ers include: Time trends in incidence Possible role of viruses and infections Molecular mechanisms Leukaemia clusters Radiation including maternal and paternal exposure, CT scanning, radiation discharges, EMF, light emission.. Air pollution Placental transfer to the foetus Risk assessment...

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