Search results for highly active
Venomous bite: Harmless digestive enzyme evolved into venom in two species
Oct 29, 2009 |
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(PhysOrg.com) -- Biologists have shown that independent but similar molecular changes turned a harmless digestive enzyme into a toxin in two unrelated species -- a shrew and a lizard -- giving each a venomous ...
New test quickly ID's active TB in smear-negative patients
Sep 23, 2009 |
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Active tuberculosis can be rapidly identified in patients with negative sputum tests by a new method, according to European researchers. Active tuberculosis (TB) is the seventh-leading cause of death worldwide, and while ...
Scientists discover new platinum catalysts for the dehydrogenation of propane
Chemistry / Analytical Chemistry
Mar 13, 2009 |
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(PhysOrg.com) -- The process to turn propane into industrially necessary propylene has been expensive and environmentally unfriendly. That was until scientists at U.S. Department of Energy's Argonne National ...
Enzyme inhibitor takes an unexpected approach toward blocking cancer-promoting protein
Sep 08, 2009 |
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Scientists at Fox Chase Cancer Center have discovered a unique method of attack that may be used to inhibit signaling enzymes called kinases, which often have a role in sustaining drug-resistant cancerous cells. They have ...
A Change for the better: Improving properties of enzymes
Sep 24, 2009 |
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An international team of scientists from the Czech Republic, Germany and Japan have developed a new method for improving the properties of enzymes. The method has potential for wide application in the chemical, ...
Brain's problem-solving function at work when we daydream
Medicine & Health / Psychology & Psychiatry
May 11, 2009 |
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A new University of British Columbia study finds that our brains are much more active when we daydream than previously thought.
Boost for Methanol? New solid catalyst for the direct low-temperature oxidation of methane to methanol
Aug 21, 2009 |
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(PhysOrg.com) -- As a possible energy source for fuel cells or a substitute for gasoline, methanol is increasingly drawing attention beyond its importance as a feedstock for chemical industry. It can be stored much more efficiently ...
Black hole outflows from Centaurus A detected with APEX
Jan 28, 2009 |
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(PhysOrg.com) -- Astronomers have a new insight into the active galaxy Centaurus A (NGC 5128), as the jets and lobes emanating from the central black hole have been imaged at submillimetre wavelengths for ...
Focusing HIV treatment helps control concurrent hepatitis B infection
Medicine & Health / HIV & AIDS
Jul 15, 2009 |
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Prolonged use of highly active antiretroviral therapy (HAART) to treat people infected with both HIV and hepatitis B (HBV) helps to better control the hepatitis B infection and could delay or prevent liver complications, ...
Partner issues significantly influence women's sexual activity in later years, study shows
Other Sciences / Social Sciences
Jun 25, 2009 |
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As a woman gets older, physical problems are less likely to influence whether she is sexually active than her partner's health or interest in sex, according to a new study by researchers at the University of California, San ...
New Smart Material Bends Under Internal Heat Source
Feb 06, 2009 |
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(PhysOrg.com) -- Scientists have developed a new smart material that can bend under the influence of an internal heat source. The material could be used as an aerodynamic flap in cars, in order to stabilize ...
People who exercise lower their risk of colon cancer
Feb 12, 2009 |
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An ambitious new study has added considerable weight to the claim that exercise can lower the risk for colon cancer. Researchers at Washington University School of Medicine in St. Louis and Harvard University combined and ...
The Long and the Short of Acrylate Polymerization
Sep 22, 2009 |
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(PhysOrg.com) -- Used in such diverse applications as adhesives, detergents, and super-absorbent disposable diapers, polyacrylates are key polymers, but the mechanisms of their formation are complex and have ...
Has HIV become more virulent?
Medicine & Health / HIV & AIDS
Apr 07, 2009 |
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Damage to patients' immune systems is happening sooner now than it did at the beginning of the HIV epidemic, suggesting the virus has become more virulent, according to a new study in the May 1, 2009 issue of Clinical In ...
Researchers identify proteins in lung cancer cells that may provide potential drug targets
Nov 25, 2009 |
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Researchers from Boston University School of Medicine (BUSM) and the Boston University Biomedical Engineering Department have identified a number of proteins whose activation allows them to distinguish between cancer and ...
