Tag: "separates" at biology news

Critically endangered monkey species plummets more than 50 percent since 1994

...st in 19 distinct populations. Rampant development separates the remaining populations of this langur species, preventing the groups from interacting with one another. Fourteen of the groups are likely to disappear within the next decade, since they either lack a breeding pair or have unsustainably tiny popula...

Possible new cure for psoriasis

...sion of the keratinocytes. They form a layer which separates the epidermis from the dermis, which lies beneath it. The ageing cells pass from this germinal layer to the surface until they finally scale off. The disease progresses in waves. Its typical features are clearly defined red areas which are covered wi...

When sun's too strong, plankton make clouds

...rients that plankton need to live on. Like how oil separates from water, the warmer upper layer creates almost a barrier from the cooler lower layers and less mixing occurs. Also, the shallow upper layer exposes the plankton to more UV light. Under conditions where there are low nutrients in the water and leve...

Shortened chromosomes linked to early stages of cancer development

...Chromosomal DNA is first denatured, a process that separates the strands within the DNA's double helix structure. The Hopkins scientists then added a fluorescent probe specific for telomere regions. As the DNA re-forms into a double helix, it blends with the fluorescent molecules, enabling scientists to exam...

Mimicking humpback whale flippers may improve airplane wing design

...longer flows smoothly over the top of the wing but separates from the top of the wing before reaching the trailing edge. When an airplane wing stalls, it dramatically loses lift while incurring an increase in drag. As whales move through the water, the tubercles disrupt the line of pressure against the leading...

UCSD finds genetic time bomb in heart that leads to heart failure in some patients

...rs (the atria) occurs in the septum, the wall that separates the heart's left and right sides. The most common treatment has been surgery to close the hole. "People have thought that congenital heart disease is cured by surgery, which is true for the short term," said the study's senior a...

Carnegie Mellon U. conducts first comprehensive proteomic analysis of developing animal

...s and then run both samples on the same gel, which separates proteins by size and electrical charge. A computer program analyzes the gel to detect differences in the abundance and presence of all the proteins from the two samples and reports them back to the investigator. "Our study is really a starting poin...

Rare ant may help solve some mysteries of social evolution

...h their host," Herbers said. "We want to know what separates the behavior of one species from another, what makes one more ruthless than another, and to see if we can get more insight into the key evolutionary differences between these parasitic ants."...

Scientists discover way to streamline analysis of maize genome

...ive DNA sequences by using a different method that separates DNA segments into "low-copy" (High C0t) and "high-copy" (Low C0t) sequences, which correspond roughly to gene-rich and gene-poor sections of the genome, respectively. When researchers analyzed the composition of Simple Sequence Repeats short,...

OXiGENE launches significant expansion of its R&D program in ophthalmology

...ruch's membrane (the tissue behind the retina that separates it from the blood vessels of the choroids) are two of the tissues that stretch and become thin. The thinning of the retina in the macula can result in gradual decrease in vision and is called myopic macular degeneration. The thinning of Bruch's mem...

Small-molecule inhibitors of botulinum neurotoxin identified

... the nerve terminal. Once inside, the light chain separates from the heavy chain and cleaves, or cuts, specific proteins that control neuromuscular function. Cleavage of these proteins effectively blocks the release of neurotransmitters that cause the muscle contractions necessary for respiration. The resu...

Transparent fish provide window on blood formation and marrow transplantation

...hers used flow cytometry, a technique that rapidly separates individual cells according to their optical properties. In one set of experiments, the researchers found that they could separate distinct populations of red and white blood cells based on their light-scattering characteristics. The scientists exploi...

November science picks!

... at This California Beach: A single strand of rope separates threatened western snowy plovers from people recreating on the public beach of Coal Oil Point Reserve, at the University of California, Santa Barbara. Although these small, 6-inch shorebirds had seemingly abandoned this site for breeding because of ...

Snowy plover 'nursery' success earns Resource Stewardship Award

A single strand of rope separates threatened western snowy plovers from people recreating on the public beach of Coal Oil Point Reserve, at the University of California, Santa Barbara. Although these small, 6-inch shorebirds had seemingly abandoned this site for breeding, after the ...

Genetic differences revealed by SNPS play a role in risk, prevention and outcome for cancer

...fraction of biomolecular material to find out what separates one individual from the next, including why some or more susceptible to specific diseases or conditions than their neighbors. The quarry for this chase is collectively known as single nucleotide polymorphisms, SNPs. Commonly referred to as "snips," t...

Study at TSRI links dozens of proteins to several rare muscle and nerve degeneration diseases

...matography (which is like a molecular "sieve" that separates a complex mixture into its component parts) with tandem mass spectrometry (which identifies the components based on their masses). The instrument detects these masses and uses sophisticated software to identify thousands of separate proteins. But M...

Genetics pioneer from the Bronx wins Gruber Prize

...ive five years, due to advances in diagnosis which separates one subtype from another." Today at the 19th International Congress of Genetics in Melbourne, Dr Botstein was awarded the 2003 Genetics Prize of the Peter Gruber Foundation--one of the discipline's highest accolades--for a lifetime of such work linki...

Woods Hole Oceanographic Institution scientists respond to Buzzards Bay oil spill

...phy, an analytical chemistry method that partially separates and identifies the complex nature of chemicals in oil, and a novel more powerful separation and identification technique called comprehensive two-dimensional gas chromatography, available at only a few laboratories in the country. Reddy and Nelson fo...

Study discovers key to baby-like skin

...rimary care interface a biological spacesuit that separates outer from inner space. Skin is the largest organ in the body, yet its often treated as insignificant, says Stephen Hoath, MD, a neonatologist, medical director of the Skin Sciences Institute and co-author of the study. You cant deliver medical car...

UI study discovers cells segregate molecules to control signaling

...t to many other biological systems where a barrier separates a message molecule from its receptor. "When cancer cells grow, they often lose their barrier function," Welsh said. "We speculate that might mean that signaling molecules could gain access to their receptors, and this might stimulate cell growth." Th...

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