Tag: "controlling" at biology news

Insights Into The Proteasome - A Fascinating Macromolecular Machine For Protein Degradation

...r degradation are attacked. A basic strategy in controlling protein degradation is compartmentalization, that is sequestration of proteolytic action from the environment. Many proteases reside within spezialized membrane-surrounded organelles, such as lysosomes. Another mechanism of control, which...

Study Of Microbes May Hone Predictions Of Mining Impact

...e study, was a surprise. "Thiobacillus is not the controlling or predominant player" it was presumed to be, said Hamers. "Inside the mine, where most acid drainage is found, it is essentially undetectable." On the other hand, Leptospirillum is a far more active player inside the mine, making up as much as 50 pe...

Research Indicates Molecule Sabotage May Slow Brain Cancer

...t up new tumors," says Hockfield. "One approach to controlling the cancer would be to block the glioma cells'ability to travel, without harming healthy cells." BEHAB, also known asbrevican, appears to be a prime candidate for this type of therapy because itexists in glioma tumors, but not in other kinds of brai...

Insect Taste Buds Target Of Control Method

...g with corn rootworm to develop better methods of controlling this insect. Corn rootworm is the primary pest of corn in the United States. While its larva does most of the damage, this occurs beneath the ground and it is easier to target the adult beetle. "Most pesticides are neurotoxins and must make it p...

Kaposi's Sarcoma Caused By Virus Usually Transmitted Through Homosexual Sex, According To UCSF Study

...on of men observedover a narrow time frame, and by controlling for our subject's sexual behaviorand degree of HIV-related disease, we believe we have eliminated the possibilitythat the apparent association between HHV-8 and Kaposi's sarcoma, seen in priorstudies, was caused by anything but a direct causal relati...

EPA Should Redirect Some Research on Toxic Airborne Particles

...e the likelihood that moneyspent on regulating and controlling particulates will fully protect publichealth." EPA recently set stricter standards for particulate matter -- a broad class ofmaterials that originate from industrial manufacturing processes, forest fires,automobile exhaust, fossil fuel combustion, wi...

Shuttle Mission's "Neurolab" To Study Nervous System

...been hard to explore itsrole in development and in controlling movement," says Christopher Platt,program manager in NSF's division of integrative biology and neuroscience, whichfunded the aquatic experiments. "Neurolab allows unique tests that will shedlight on how gravitational sensors work. These studies may...

Water Quality In Indiana's White River Basin Affected By Urban And Agricultural Activities

...the United States. Soil drainage is a major factor controlling nitrate concentrations in streams. "Concentrations tend to increase as the proportion of naturally or artificially drained soils in the basin increases," said Crawford. "Manure from farm animals also increases nitrate concentrations in some streams."...

Stanford Microbiologist Receives Lifetime Achievement Award

...of genes. He discovered a regulatory mechanism for controlling gene expression byattenuation, a device which determines whether transcription, once initiated,produces translatable messanger ribonucleic acids or is terminated beforereaching the structural genes. He was nominated by Robert Landick, Unive...

Molecular Memory Tunes Adrenaline To Stress

...ss hormones dictate whether the potassium channels controlling adrenaline release are constructed with or without an optional piece called STREX, for stress exon. This STREX exon causes the channel to open more easily, which favors rapid, excitable responses and fast secretion of adrenaline." To test th...

Leading HIV Researcher Identifies Molecular Mechanism That Enhances NaturalImmune Defense Against HIV Infection

...rch Laboratory. "Ibelieve the present approach to controlling HIV is doomed to fail. There is norestoration of the immune system in the treated people and the virus willeventually become resistant to the drugs." Already, Levy pointed out, several people on drug treatment have resumedproduction of high levels o...

Structure Of The Plasma Membrane Proton Pump Offers A First Glimpse Of The Mechanism Of Ion Pumping Across Membranes

... pump protons out of the cell, there by controlling its internal pH. Similar proteins control the heart rhythm, the action potential of nerve cells, and muscle contraction. All these ion pumps work in the same way as the proton ATPase and are likely to have similar structures...

Earlier Human Speech?

...hypoglossal canal" -- whichcarries the motor nerve controlling the tongue -- in the skulls of humans, apesand fossil hominids. They found that the canal in Neanderthals and early humansmore closely matched that of modern humans than did the smaller canals of apesand proto-humans such as Australopithecus. ...

National Network Provides Update On Devastating Corn Disease

...r preventative fungicides; the economic benefit of controlling thedisease with fungicides in grain production fields is marginal except in highrisk areas with significant yield losses annually For the complete NCR-25 Report, Gray Leaf Spot of Corn: An Update, visit thehome page of the American Phytopathologica...

CAK Activation Of Plant Cell Cycle: Scientists Find Another Piece In The Jigsaw Puzzle To Help Explain Why Plants Do Not Develop Cancer Spontaneously

... where they perform a distinct function, controlling carcinogenesis. Scientist are eager to find out how plant cells control the activation of their division, and how this differs in animals. The first significant step has now been made: Dr. Masaaki Umeda's laboratory at Tokyo...

ACE Gene Linked To High Blood Pressure In Men But Not Women

... plays a role inkeeping the blood volume normal by controlling salt and water balance. Thissystem, called the renin angiotensin system, maintains salt and water balance tokeep blood pressure normal and is also involved in heart muscle and blood vesselgrowth. While previous research has found that people who car...

Biggest Acoustics Meeting Ever

...fects on sleep.Laroche will address strategies for controlling noise in such units(1aNSa1). Accompanying this sessionwill be a panel discussion on this emerging area of inquiry in acoustics....

Fetal Lead Exposure May Reduce Immunity

... to fend off infectious diseases and cancers while controlling the body's inclination to injure itself in allergic and autoimmune diseases. "Exposure to lead at these levels is not the kind of assault that can destroy the kidneys in 24 hours," Dietert says. "These exposures take time to play out, but ultimatel...

Gene May Hold Key To Treating Life-Threatening Cholesterol

...off, will help scientists develop better drugs for controlling life-threatening levels of the substance, researchers at UT Southwestern Medical Center at Dallas reported in the May 29 issue of Cell . The gene that was turned off expresses liver X receptor, or LXR-alpha, a protein molecule found primarily in the...

First TableTop Source Of Concentrated X-Rays Built

...ser through a hollow glass tube filled with gasand controlling the pressure of that gas, the team---including Andy Rundquist,Charles Durfee, and electrical engineering professors Henry Kapteyn and MargaretMurnane and colleagues---were able to generate a focused beam of X-rays thatcould be incorporated into a dev...

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(Date:4/14/2014)... treat children with uncomplicated acute appendicitis is a reasonable ... fewer missed school days, according to a pilot study. ... Hospital and published online April 12 in the ... the first prospective study on nonoperative management of acute ... , Researchers enrolled 77 patients age 7 to 17 ...
(Date:4/14/2014)... 2014, Perth, Australia. Drug discovery company Proteomics International ... of a companion diagnostic (CDx) test with the ... The research team authenticated the panel of biomarkers ... samples. Seven biomarkers were validated at high stringency ... The mass spectrometry data was then cross-validated using ...
(Date:4/14/2014)... 2014) When it comes to the cost and ... Patients get the best care when they are treated ... extensive experience in their current job, according to a ... and Columbia Business School. The study was published in ... Applied Economics . , The review of more ...
(Date:4/13/2014)... STANFORD, Calif. A low-cost empowerment program for ... and sexual harassment of these girls, who live ... and are frequently attacked, a large new study ... Stanford University School of Medicine, Lucile Packard Children,s ... No Worldwide, validated the program,s effectiveness in combating ...
(Date:4/11/2014)... the processes that control brain cell production could pave ... brain-related disorders. , Scientists have gained new understanding of ... how and when nerve and brain cells are formed ... and keeps it healthy. Their findings could help explain ... which is a fundamental characteristic of many diseases including ...
Breaking Medicine News(10 mins):Health News:Antibiotics alone are a successful treatment for uncomplicated acute appendicitis in kids 2Health News:Antibiotics alone are a successful treatment for uncomplicated acute appendicitis in kids 3Health News:Longer nurse tenure on hospital units leads to higher quality care 2Health News:Empowerment program greatly decreases incidence of rape, Stanford/Packard-led study finds 2Health News:Empowerment program greatly decreases incidence of rape, Stanford/Packard-led study finds 3Health News:Empowerment program greatly decreases incidence of rape, Stanford/Packard-led study finds 4
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