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Tag: "locate" at biology news

New Technique for Tracking Gene Regulators

...uence of A, T, G, and C onthese fragments and then locate their original positions on the genome,but it is a...tags are large enough to allow computersearches to locate their specific positions on the complete genome in amanner that is analogous to a laser scanner read...

New Clues Add 40,000 Years to Age of Human Species

...expedition, the researchers were able to precisely locate the original fossil outcrops. The scientists collected hundreds of new mammal fossils that helped differentiate layers of sediment and link the currently dry region to its moister climates of the past. But, precisely dating the outcrops required vo...

Plants defy Mendel's inheritance laws, may prompt textbook changes

...cular markers - bits of DNA that help identify and locate genes in organisms - to determine whether a plant carried normal or mutant copies of the genes. "It seems that these hothead-containing plants keep a cryptic copy of everything that was in the previous generation, even though it doesn't show up in t...

Molecular Motors Cooperate In Moving Cellular Cargo, Study Shows

...ing with One Nanometer Accuracy. The technique can locate a fluorescent dye to within 1.5 nanometers (one nanometer is a billionth of a meter, or about 10,000 times smaller than the width of a human hair). Recent improvements to FIONA now allow scientists to detect motion with millisecond time resolution. ...

Microbial forensics: The next great forensic challenge

...and the original crime scene could be difficult to locate and link to suspects," Murch said. Additionally, the biological and ecological complexity of most biothreat agents present forensic microbiologists with a number of significant analytical and interpretive challenges. "It is doubtful that any one sin...

Infants With Rare Genetic Disease Saved by Cord Blood Stem Cells

...whereas a matching adult donor can takes months to locate and obtain if available at all, said Kurtzberg. Similar benefits of cord blood were seen in an earlier Duke study of children with Hurler Syndrome, results of which were published in the May 6, 2004, issue of the New England Journal of Medicine. In ...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...t small animals use seismic signals to find mates, locate prey and establish territories," she notes. "But there have only been a few studies focusing on the ability of large mammals to communicate through the ground." Her insights generated international media attention after the Dec. 26, 2004, tsunami di...

Infants with Rare Genetic Disease Saved By Cord Blood Stem Cells

...whereas a matching adult donor can takes months to locate and obtain if available at all, said Kurtzberg. Similar benefits of cord blood were seen in an earlier Duke study of children with Hurler Syndrome, results of which were published in the May 6, 2004, issue of the New England Journal of Medicine. In ...

A probe, not an echo

...In addition to improved resolution, the system can locate tissue features with extreme precision in a object...olution. A hand-held apparatus cannot objectively locate objects in 3D space (in a fixed-coordinate system), but only allows the user to subjectively observe...

Researchers discover key gene involved in bark beetle pheromone production

... life cycle. But other bark beetles know where to locate mates because they are responding to an "aggregation" pheromone. If this pheromone could be disrupted, the beetles wouldn't be able to organize a "mass attack" to successfully colonize a tree, and they would die. University researchers have characte...

Vitamin A's paradoxical role in influencing symmetry during embryonic development revealed

...s have their marching orders: they "know" where to locate themselves in the developing organism and what to differentiate into. "Paradoxical," is the Salk scientists' description of retinoic acid signaling in the uniform ball of cells that is the early embryo, because its signaling influences both the asym...

High-powered gene profiles provide clues to genes involved in common form of lung cancer

...to be discovered. The purpose of this study was to locate the likeliest candidates." The study is part of a renewed effort by scientists worldwide to uncover the basic biology of lung cancer, the number one cause of cancer-related deaths in the United States. Non-small cell lung cancer (NSCLC) accounts for...

Program finds lost genes in nematode genome

...cDNA) or expressed sequence tags (EST), which help locate genes. These predicted genes are derived by a combination of a program from the previous generation and some curation by human experts. Brent and his colleagues say that the accuracy of WormBase can be improved with the use of TWINSCAN predictions. A...

Study shows humans have ability to track odors, much like bloodhounds

...s, we apparently have the ability to sniff out and locate odors, according to a new study by scientists from...bjects. He suggested this was done the same way we locate sounds: by contrasting either the intensity of the odor or the time of arrival. Since then, however...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...shes, whales and humans. Predators can dependably locate zooplankton aggregations by tracking well-defined cues, for example, sharp temperature gradients that occur across downwelling fronts where cold and warm waters meet. Vertical currents are common in many oceanic regions, including mid-ocean fronts, s...

Scientists discover that three molecules may be developed into new Alzheimer's drugs

... research group found, the scientists were able to locate where they bind. They found that one binds in the pocket, another binds at the edge of the pocket, and a third appears to bind completely outside the pocket. The scientists are most interested in the second and third compounds. "This is the first de...

Scientists at Galileo Pharmaceuticals confirm inflammatory response linked to glucose levels

... research group found, the scientists were able to locate where they bind. They found that one binds in the pocket, another binds at the edge of the pocket, and a third appears to bind completely outside the pocket. The scientists are most interested in the second and third compounds. "This is the first de...

Researchers track down cause of a disfiguring bone disorder

...of the SOST gene in adult humans. In an effort to locate the specific enhancer sequence responsible for SOST regulation, the team compared human and mouse DNA and found seven common segments within the 140,000-base-pair SOST region. Scientists assume that DNA segments that have been "conserved" from one or...

Techniques available to detect soil that inhibits destructive soybean pest

...arch team conducted a survey throughout Indiana to locate nematode-suppressive soils in an effort to make this tool more available and to further study the mechanisms that create its effectiveness against the pathogen. Soybean cyst nematodes, one of a large, diverse group of multicellular organisms, are th...

Researchers find Amchitka seafood safe for now

...niversity of Alaska's Mark Johnson did not clearly locate near-shore seepage of the island's own groundwater. Exploration of the island itself by University of Alberta's Martyn Unsworth turned up additional new information. By using advanced remote sensing to explore the rock substructure, it has found clea...

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