Tag: "specialized" at biology news

Cholesterol Anchor Helps Signaling Proteins Direct Development

...d egg into a collection of millions of structured, specialized cells. In animal experiments, hedgehog signals can turn on and off genes in many individual cells, coding for special traits needed to help create limbs, eyes, spinal column, or other structures. In recent years, Hopkins scientists have discovered t...

NCAR Scientists Trek To Africa For Biosphere-Atmosphere Chemistry Study

...sensors, EXPRESSO will serve as the debut for some specialized equipment, including a new isoprene flux sampler (built by NCAR's Alan Hills) that is "the world's best," according to Klinger. Isoprene, a fast-reacting chemical emitted by trees, plays an important role in the atmosphere's overall chemical balance....

Medicinal Leech May Offer Clues To Neural Regeneration

...ic oxide may serve as a "stop sign" for microglia, specialized cells that roam the central nervous system to ingest foreign particles, such as bacteria and dead cells. By flagging down microglia to help at the site of injury, nitric oxide may aid efforts to minimize tissue damage and infection. Sahley is pursuin...

High Levels of Vitamin C Prove Toxic to HIV

...the HIV-infected cells: have greater numbers of specialized cell-surface receptors through which glucose and vitamin C enter; experience a three- to five-fold increase in the uptake of vitamin C in the form of dehydroascorbic acid; and accumulate two to three times more vitamin C in the form of ascorbic acid...

Biosensor Is A Model For Widespread Testing Of Chemicals, Molecules

...eringmethods, they created a mutant protein with a specialized chemical hookthat allows the reporter group to be attached precisely in the right place.They produced the protein and tested it with maltose, and it worked. "Itwas a very exciting moment to see that our computer models actually worked,"Hellinga said....

Ozone 'Chat Room' Provides Real-Time Air-Quality Research

...oaded from CAPITA and used for other research, and specialized databases can be generated. The website address is: http://capita.wustl.edu/otag/ . Finding The Culprit "We provide the technical support for analysis of vast amounts of data pertaining to ozone so that we can enlighten the decision-makers," say...

First Salmonella Vaccine For Poultry To Be On The Market Soon

...blood, which sends antibodies to fight toxins; and specialized killer cells. Most vaccines are injected and trigger only the second and third lines of defense. In a related development, Curtiss also announced at the conference the success of a recombinant vaccine that uses the weakened salmonella vacci...

Newly Discovered Human Protein Provides Important Target For Cancer Therapy

...ates that the clock orcounting mechanism relies on specialized bits of DNA, called telomeres, at theends of each human chromosome. In the absence of telomerase enzyme, thesespecialized end-structures grow shorter with each round of cell division. Eventually, the shortening process reaches a critical stage; the ...

E. Coli Genome Reported: Milestone Of Modern Biology Emerges From Wisconsin Lab

...deciphering a language. It is done with the aid of specialized chemical analysis machines, but can only be accomplished with considerable human effort. More than 269 people - including many undergraduates getting their first taste of science - participated in the project at the UW-Madison. The individual chemica...

Environmental Engineers Demonstrate Effective Method For Trapping Highway Pollutants

...he award is named foran engineering researcher who specialized in hydraulics....

Purdue Study Finds Prehistoric Couch Potato

...s had evolved a system so that each rib moved in a specialized direction, allowing the dinosaur to consume up to 40 percent more air per breath for the same effort. "This suggests that there was some kind of pressure on these dinosaurs to become more aerobically active over time," he says. Last fall, during a tr...

Scientists Identify A Novel Mitotic Regulatory Mechanism

...on via a novel mechanism involving binding of a specialized protein (a so called peptidyl-prolyl cis/trans isomerase) to phosphorylated mitotic proteins and catalyzing a conformational change of these binding partners thereby allowing the correct exit from mitosis. The authors were able to show th...

National Laboratory Known For Environmental Technology Directing Attention On Solving Agriculture And Food Processing Problems

... trying to extend genetic engineeringtechniques to specialized yeast strains, which would feed on agricultural wasteproducts and, in the process, produce industrial enzymes and food and animalfeed supplements. A new mechanism known as a "shuttle vector," which transfersdesirable gene sequences to the genome of ...

Good Ergonomics Is Good Economics

...; (c) the hiring of an ergonomics advisor; and (d) specialized training on ergonomics and workstation setup for machine maintenance workers and industrial engineers, the Red Wing Shoe Company of Red Wing, Minnesota, made a commitment to reducing WMSDs via ergonomics. The company purchased adjustable ergonomic ch...

Testing Sought For Brighteners, Natural Substance In Spices, Cosmetic Chemical, Three Herbs, A Natural Oil And A Fertilizer

...tening agent for synthetic fibersand a coating for specialized papers, and 7-(2H-Napthol[1,2-d]triazol-2-yl)-3-phenylcoumarin,also a fabric brightener but also used in plastics,photographic film, toners and food packaging. Three herbs, comfrey, goldenseal and sawpalmetto. Comfrey has been comme...

Short-Course TB Prophylaxis Effective In HIV-Infected Individuals

...ries of the Americas. It serves as the specialized organization for health of the Inter-American System. It also serves as the Regional Office for the Americas of the World Health Organization and enjoys international recognition as part of the United Nations system....

"Genetic Factors Influencing Cholesterol Response To Diet"

...ss pattern B. This trait,which can be detected by specialized analytic tests, is found in about one inthree adult men and one in 5 to 6 postmenopausal women. It is not so common inyounger men and premenopausal women. In addition to the presence of unusually small and compact LDLparticles, pattern B is ...

Females' Siren Song Initiates Courtship Duets In African Frogs, Columbia Biologists Find

... that the Xenopus male's brain andmale muscles are specialized for his prolonged courtship songs and that thesecretion of male sex hormones, androgens, are responsible for establishing thenumbers and types of cells required for the vocalizations. Connections betweenmale vocal neurons and muscle fibers is weak, ...

Towards A Local Stimulation Of Natural Bypass Growth - Max Planck Scientists Developed New Treatment For Ischemic Heart Disease

...h efforts in deciphering the mechanism by which specialized blood cells locally adhere, release growth factors to preexisting connections between diseased and healthy areas of the heart, and thus stimulate the growth of true natural bypasses at exactly the location where it is needed....

Candidate Regulator Of The Temporal Component Of Neurotransmitter Release Identified

...ave long been used in evolution into the highly specialized machinery of neurotransmitter release....

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