News tagged with biological
Biosensor to help enlist cancer resistance fighters?
Oct 23, 2009 |
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(PhysOrg.com) -- A powerful new biosensor developed by European researchers will help identify cells in the immune system that actively suppress tumour growth, then put them to use. Enlisting the patient?s ...
New research suggests how low doses of radiation can cause heart disease and stroke
Oct 23, 2009 |
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A mathematical model constructed by researchers at Imperial College London predicts the risk of cardiovascular disease (heart attacks, stroke) associated with low background levels of radiation. The model shows that the ...
Regulating emotion after experiencing a sexual assault
Medicine & Health / Psychology & Psychiatry
Oct 22, 2009 |
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After exposure to extreme life stresses, what distinguishes the individuals who do and do not develop posttraumatic stress disorder (PTSD)? A new study, published in the October 1st issue of Biological Psychiatry, sugges ...
Getting on 'the GABA receptor shuttle' to treat anxiety disorders
Medicine & Health / Psychology & Psychiatry
Oct 22, 2009 |
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There are increasingly precise molecular insights into ways that stress exposure leads to fear and through which fear extinction resolves these fear states. Extinction is generally regarded as new inhibitory learning, but ...
Nanowire biocompatibility in the brain: So far so good
Nanotechnology / Bio & Medicine
Oct 22, 2009 |
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The biological safety of nanotechnology, in other words, how the body reacts to nanoparticles, is a hot topic. Researchers at Lund University in Sweden have managed for the first time to carry out successful experiments involving ...
Designer molecule detects tiny amounts of cyanide, then glows
Oct 21, 2009 |
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(PhysOrg.com) -- A small molecule designed to detect cyanide in water samples works quickly, is easy to use, and glows under ultraviolet or "black" light. Although the fluorescent molecule is not yet ready ...
Childhood risk factors for developing substance dependence
Medicine & Health / Psychology & Psychiatry
Oct 21, 2009 |
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There is ample evidence for the genetic influence of alcohol dependence, and ongoing studies are actively looking for specific genes that may confer this increased susceptibility. In addition, while it is well-known that ...
Scientists bend nanowires into 2-D and 3-D structures
Oct 21, 2009 |
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(PhysOrg.com) -- Taking nanomaterials to a new level of structural complexity, scientists have determined how to introduce kinks into arrow-straight nanowires, transforming them into zigzagging two- and three-dimensional ...
Maternal smoking may increase newborns' discomfort
Medicine & Health / Psychology & Psychiatry
Oct 21, 2009 |
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A new research study being published in the October 15th issue of Biological Psychiatry suggests that maternal smoking may increase the level of distress of newborns.
Synthetic Cells Shed Biological Insights While Delivering Battery Power
Oct 20, 2009 |
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(PhysOrg.com) -- Trying to understand the complex workings of a biological cell by teasing out the function of every molecule within it is a daunting task. But by making synthetic cells that include just a ...
Breakthrough with light could help viral research
Oct 20, 2009 |
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(PhysOrg.com) -- Researchers have developed a method using the force of light to gently trap, manipulate and study tiny, active objects as miniscule as viruses -- opening doors to expanded viral research.
Artificial reddener: New synthetic route for EPO and other glycoprotein analogues
Oct 19, 2009 |
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(PhysOrg.com) -- Erythropoetin, abbreviated EPO, has gained a scandalous reputation as a doping agent for racing cyclists. The name is derived from the ancient Greek erythros "red" and poiein “to make”, a fitting designation ...
The food-energy cellular connection revealed
Oct 15, 2009 |
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Our body's activity levels fall and rise to the beat of our internal drums—the 24-hour cycles that govern fundamental physiological functions, from sleeping and feeding patterns to the energy available to our cells. Whereas ...
New brain stimulation treatment may offer hope for those with treatment resistant depression
Medicine & Health / Psychology & Psychiatry
Oct 13, 2009 |
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A new neurosurgical procedure may prove helpful for patients with treatment-resistant depression. Bilateral epidural prefrontal cortical stimulation (EpCS) was found generally safe and provided significant improvement of ...
Like humans, monkeys fall into the 'uncanny valley'
Oct 13, 2009 |
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(PhysOrg.com) -- Princeton University researchers have come up with a new twist on the mysterious visual phenomenon experienced by humans known as the "uncanny valley." The scientists have found that monkeys ...
