numerous 2 3

Tag: "numerous" at biology news

Genes and genius: Researchers confirm association between gene and intelligence

... says the next step is to look at the gene and its numerous variants to learn what is going on biologically that might affect cognitive performance. Presently, she says it's too early to predict how small changes in the gene might be influencing communication in the brain to affect intelligence, and she says ...

Brain works more chaotically than previously thought

...could not only excite the actual receptor but also numerous other nerve cells." If this hypothesis is correct, the accepted scientific understanding of the way neurons communicate, which has prevailed for over a hundred years, will have to be revised. In 1897 Sir Charles Sherrington first put forward the ...

Overfishing large sharks impacts entire marine ecosystem, shrinks shellfish supply

...r shark fins and meat." Sharks are targeted in numerous fisheries, and they also are snagged as bycatch in fisheries targeting tunas and swordfish in both U.S. and high seas fisheries. As many as 73 million sharks are killed worldwide each year for the finning trade, and the number is escalating rapidly....

Temple University Hospital investigates treatment for cervical dysplasia

... 10,000 cases progressing to cervical cancer. For numerous women afflicted with the common sexually transmitted disease known as human papillomavirus (HPV), the immune system can not prevent certain high-risk strains of the virus from causing cervical dysplasia, a common precursor to cervical cancer. "The ex...

Microbes compete with animals for food by making it stink

.... They found that chemical extracts composed of numerous compounds suppressed stone crab feeding when added to otherwise palatable fish flesh. But, of the several specific compounds they isolated and identified, none of the compounds by itself had this effect, Hay noted. So the researchers could not pinpoi...

Cloned mice created from fully differentiated cells, a milestone in cloning research

...od cells unique for their segmented nuclei and the numerous granules in the cells' cytoplasm. Surprisingly, the granulocytes were the most efficient donor cells for nuclear transfer among the different lineage cells, with 35 to 39 percent becoming a blastocyst, an early embryo consisting of about 100 to 150...

The effects of smoking on fractures and ligament injuries

...orthopedic conditions. Studies have shown that the numerous toxins contained in cigarette smoke can undermine fracture and ligament repair following injury. In addition, smokers have higher rates of hip fracture, fracture healing problems and bone infections and smoking has been shown to impair soft tissue wo...

Lost in the labyrinth

... had dramatic effects. Usually, most cells undergo numerous transitional stages on their way from stem cells to fully-developed types in the blood. Several types of blood cells vanished entirely; the same thing happened to more basic cell types higher up in the blood lineage hierarchy. Particular kinds of ste...

An AIDS-related virus tricks cells to become tumors, new Penn study finds

... implies, prevent or limit the growth of tumors in numerous ways. One way the tumor suppressors p53 and VHL work is to mark a key protein that controls the blood supply in a tumor mass. Once marked, this protein called hypoxia-induced factor 1a (HIF-1a) is degraded through ubiquitylation before it can start t...

Pooled data examines if SNPs add to breast cancer risk

Pooling data from numerous studies has helped scientists examine specific genetic variants related to breast cancer incidence, according to a study in the October 4 issue of the Journal of the National Cancer Institute. The Breast Cancer Association Consortium brought tog...

New drug blocks influenza, including bird flu virus

...e peptide) provided 100 percent protection against numerous subtypes (of flu), including the highly pathogenic H5N1 viruses...," according to the Journal of Virology report. The new drug, known as "entry blocker," is a fragment of a larger human protein whose role in biology is to help things pass through m...

RNA map provides first comprehensive understanding of alternative splicing

...n of the director's cut. In much the same way that numerous films could be stitched together from a single reel of raw footage, a molecular process called alternative splicing enables a single gene to produce multiple proteins. Now a new RNA map, created by a team of researchers at Rockefeller University and ...

First Quantum Grant to fund stem cell repair of damage from stroke

...among leading scientists who have jointly authored numerous publications, mentored students and postdoctoral fellows, as well as collaborated on Bioengineering Research Partnership grants," said Jennifer West, who is leading the project's efforts at Rice. West is the Isabel C. Cameron Professor of Bioengineer...

GlycoFi and Dartmouth report full humanization of yeast glycosylation pathway in Science

... and a senior scientist at GlycoFi. Yeast offers numerous advantages as a recombinant protein expression system when compared to mammalian cell culture. These include the capability of producing higher recombinant protein titers, shorter fermentation times, and the ability to grow in chemically defined medi...

Carnegie Mellon scientists use 'green' approach to transform plastics manufacturing

... adhesives, lubricants, cosmetics, electronics and numerous other markets. ATRP's strength lies in its ability to combine chemically diverse subunits (monomers) into multiple arrangements that create specialized polymers. This technology enables production of "smart" materials that can respond intelligently t...

Study illuminates how the plague bacteria causes disease

...ce. In the case of Yersinia, the plasmid harbors numerous genes, including a large number that contribute to the ability of diverse pathogens to deliver virulence factors into host cells. One of these genes is YpkA, a protein with multiple domains, including one closely related to an enzyme, a type of kinas...

End of deforestation in view? Experts advance new way to size up global forest resources

...riculture is shrinking, even as people become more numerous and eat better. In many countries forests have begun to enlarge, as farmers spare land and foresters also shift from extensive to intensive strategies. Says Mr. Ausubel: "This great reversal in land use could stop the styling of a Skinhead Eart...

Regulating the nuclear architecture of the cell

...nes; most of the DNA in heterochromatin, including numerous short repeated sequences, does not code for proteins. Heterochromatin is typically found at the ends of a chromosome, where it abuts the telomeres -- chromatin structures best known for limiting, by their diminishing length, how many times a cell...

Giant insects might reign if only there was more oxygen in the air

...ger to reach central tissue, and get wider or more numerous to meet the additional oxygen demands of a larger body. Insects can limit oxygen flow by closing their spiracles. In fact, one reason insects are so hardy is that they can close their spiracles and live off the oxygen they already have in their tr...

A new target for painkillers

...alpha10 nicotinic acetylcholine receptor." "The numerous analgesic compounds currently available are largely ineffective" for chronic nerve pain, McIntosh and colleagues write. "Our findings not only suggest a previously unrecognized molecular mechanism for the treatment of neuropathic pain, but also demon...

1 2 3 4 5 6 7 8 9 10