Tag: "known" at biology news
Diatom genome reveals key role in biosphere's carbon cycle
...s diatom species uses fats, or lipids, which it is known
to store in huge amounts. "Learning the actual pathways they use to metabolize their fats helps explain the ability of diatoms to withstand long periods with little sunlight--even to overwinter--and then start growing really rapidly once they return...
Studying the chemistry of drugs in wastewater
...en from streams and other waterways, but little is known
about byproducts of those drugs created during chl...are more likely to build up in the body. It is not known
whether these reaction products pose any health or environmental hazards. "We have unique measuremen...
Don't stand so close to me: A new view on how species coexist
...by laying eggs in them, account for a fifth of all known
multi-celled species. Their 200,000 species places them approximately next to land plants in terms of diversity. To their surprise they found that over long periods of time, 'gaps', or differences in their life histories, opened up between the evolvi...
Penn receives grant for initiative to help understand genes' effects on medications
...ariability in the response to medications has been known
for decades to play a critical role in limiting the efficacy and safety of drugs. The Penn project seeks to pave the way for a complete understanding of the genetic basis for these sometimes unpredictable responses to medications, as well as the appr...
32 new grants made for innovative technology R&D
...nted by the body's natural antigen display systems known
as HLA. Revivicor, Inc. (Blacksburg, Va.) Production of Fully Human Polyclonal Antibodies in Genetically Modified PigsDevelop pigs with human genes for the production of fully human polyclonal antibodies that can be used to treat a wide range ...
Commandeering cellular machinery: recognition mechanism to detect small molecules
...g manipulation of this cellular protein machinery known
as nuclear receptors the technique could also lea...ocumented by other researchers. Using a technique known
as structure-based codon randomization, the Georgia Tech researchers used their knowledge of RXR's s...
College students recognized & rewarded for their innovative work
...such as Alzheimer's, and further an emerging field known
as microfluidics. An undergraduate winner, a graduate winner, and a grand prizewinner were selected from fourteen finalist teams. Advisors for each winning team were also recognized for their contributions. The 2004 winners are: Grand Prize Winner,...
Of lice and men
...al model" and instead fit best with a third theory known
as the "diffusion wave model." (1) The replacement model says that after primitive human ancestors first left Africa about 2 million years ago, a second wave spread out from Africa sometime after 150,000 years ago and certainly by 50,...
How roots control plant shoots
...The study used a plant named Arabidopsis, commonly known
as thale cress, which is frequently used in studie...s, leaves, flowers and fruits. But little has been known
about how genes active in roots control these chemical signals, Sieburth says. The new study reveals...
Research team develops nonhuman primate model of smallpox infection
...anization (WHO). Currently, infectious variola is known
to exist only in two WHO-sanctioned repositories, one in Russia and the other at the Centers for Disease Control and Prevention (CDC) in Atlanta. However, there is concern that undisclosed reference stocks of the virus may exist, and the U.S. popula...
Pine cones lead to a fundamental change in clothing
...o control their body temperature. "We've all known
days when the weather alters quickly and it's difficult to dress to match the changing temperature. Often it's a case of being too hot or too cold, or taking a jumper on and off. "The new smart clothing will make all that unnecessary and we're ...
Intelligent clothing inspired by pine cones
...hing to control their body temperature. "We've all known
days when the weather alters quickly and it's difficult to dress to match the changing temperature. Often it's a case of being too hot or too cold, or taking a jumper on and off. "The new smart clothing will make all that unnecessary and we're please...
Below the surface: New clues to plant signaling from the roots
...ajor unsolved problem in plant biology. It is known
that plant roots, whose primary role is to supply water and nutrients to the above-ground portions of the plant, may also provide growth signals that regulate shoot growth, but researchers are only beginning to understand the ways in which roots are ...
Dying cells encourage neighbors to grow
... that may contribute to tumor growth. It has been known
for some time that cells that die as a result of injury-provoked programmed cell death, also known
as apoptosis, may stimulate the growth of surrounding cells. "Such compensatory mechanisms may be es...
Protein energy profiles offer clues about amyloids
...tes, Alzheimer's, Parkinson's and dozens of lesser known
maladies have one thing in common: they suffer from a large build up of amyloids, tissue that's created when millions upon millions of misfolded proteins stick together and form a mass that the body can't get rid of on its own. Doctors don't yet unde...
New biosensor rapidly detects deadly foodborne pathogen
...fluid, Geng said. The tests also rely on a process known
as "enrichment," which occurs when a sample believ...k." While Bhunia said there's no known
precise number of cells it takes to infect someone, most food safety experts suggest from 100 to 1,0...
University of Oregon professor wins 2004 Spiers Medal
...studies. "While Professor Richmond is perhaps best known
to Oregonians for her leadership on the Oregon Uni...ists to recognize the potential of an optical tool known
as infrared-visible sum-frequency generation (SFG) to provide detailed structural information on liq...
Low dose radiation evades cancer cells' protective 'radar'
...er after ATM was reactivated with chloroqine, best known
as a treatment for malaria. "Tricking cancer cells into ignoring the damage signals that appear on its radar could succeed in making radiation more effective in wiping out the disease," says DeWeese. This research was funded by the National Cancer In...
Irwin Rose wins 2004 Nobel Prize in Chemistry
...nted proteins inside cells. In addition, it is now known
that other modifiers, similar to ubiquitin, are used by the cell to regulate proteins in many ways. These findings are playing a key role in the development of drugs to fight illnesses such as cancer and cystic fibrosis. "The basic science facult...
Marine Biological Laboratory summer investigator wins Nobel Prize in Chemistry
...her proteins for elimination. Scientists have long known
that all cells manufacture and subsequently discar...s," explains Hershko. The first of these proteins, known
as cyclin B, was discovered by Tim Hunt, Joan Ruderman, and their colleagues working independently a...
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