A Surgical Semiconductor Laser With More Precision And Power
...nishing the laser's power andperformance." To compensate for this breakdown of semiconductor laser beams -- known as "filamentation" -- Agrawal and Marciantepropose inserting two extra layers of slightly modified semiconducting material on either side of the active layer ofgallium arsenide, where the beam ...Heart Valve Abnormalities Examined In Relation To Duration Of Diet Drug Use
...tion have few if any symptoms because theheart can compensate for this leakage," Ryan said. Aortic regurgitation occurs when blood leaks from the aorta -- the largeartery that distributes blood to the body -- back through the aortic valve intothe left ventricle, the heart's main pumping chamber. Ryan sa...Kidney Transplant Recipients Require Less Long-Term Care If They Receive Well-Matched Donor Organs
...ch even betternationally, but not better enough to compensate for organ deterioration,"Schnitzler says. However, kidney recipients have the benefit of undergoing dialysistreatments, which can give them time to wait for a good local match. This maynot apply to people needing lungs and other organs.......e human body is able togrow new blood vessels that compensate for the blocked vessels that cause heartattacks. T...t about 50 percent of coronary diseasepatients can compensate for clogged vessels by developing new ones. Thesepatients should have fewer heart attacks or may esc...Education may help the fight against high blood pressure
... parents with some college educationcan help teens compensate for the negative effects of living in a lowsocioeconomic neighborhood," says Dawn K. Wilson, Ph.D., associate professor ofmedicine at the Virginia Commonwealth University in Richmond. "Having higher educated parents may result in health benefits for ...New treatment for type 2 diabetes puts insulin back to work
.... (3) In type 2 diabetes, the pancreas attempts to compensate for insulin resistance by producing extra insulin. Years of maintaining high levels of insulin resulting from insulin resistance may leave the beta cells exhausted. This exhaustion ultimately leaves many people with type 2 diabetes needing regular in......is alifelong condition, but dyslexics may learn to compensate for it later in life.We know dyslexia is a genetic and neurological disorder. It is not brain damage. Dyslexics often have enormous talents in other parts of their brain and shinein many fields. Einstein was a dyslexic, and so were inventor Thomas E......ould--a normal side effect of aging--the brain can compensate by calling uponsubstitute circuits to pitch in. Th...brain functions. The apparent reason: Older adults compensate for neural slowingby using different areas of the brain to recall what they've seen. Robert Sekuler,...A growth factor reverses nerve damage in diabetic animals
... blood-glucose levels. IGF-I treatment may instead compensate for the loss of a factor that keeps nerve cells healthy, or it may be a nourishing agent itself. "We have a sense of the potential relevance of the growth factor," Schmidt says. "Now we have to figure out how it works." Researchers elsewhere are eval...Missouri scientist takes 'rocky' road to NASA
...cuitry that digitizes and manipulates the image to compensate for the weaknesses of the particular wearer's vision even brightening the image, if necessary. The improved image is then displayed inside the headset, bringing a clear picture to the person. Today, the system is used by many people around the world......nti-rejection drugs are absorbed. Clinicians must compensate for this fact by delivering higher doses, but not without a price. Immunosuppressants, such as cyclosporine and tacrolimus, can produce a number of unwanted side effects as well as make patients more susceptible to life-threatening infections and tu...Researchers image language recovery after stroke
... a different part of the brain might take over and compensate for the impaired region. Corbetta and colleagues set out to distinguish between these two possibilities. "We were interested in imaging areas potentially involved in language recovery to examine the underlying mechanisms," Corbetta says. "We also wo...Scientists find link between dopamine and obesity
...amine receptors because their brains are trying to compensate for having chronically high dopamine levels, which are triggered by chronic overeating," says Wang. "However, it's also possible that these people have low numbers of dopamine receptors to begin with, making them more vulnerable to addictive behavior......ease, and people whose bodies cannot automatically compensate for dialysis-induced fluid loss by constricting the blood vessels to maintain blood return to the heart. The number of at-risk patients is growing; at least 20 percent of dialysis patients are over 65, and more than half suffer from other illnesses, ......ulin secreting cells of the pancreas are unable to compensate by making more of the hormone. In healthy individu... presence of the other two related kinases did not compensate completely for the absence of Akt2. The study provides definitive evidence of the importance of Akt...Meningitis in infancy linked to developmental problems
...terial. "Simple educational interventions may help compensate for these deficits, improving academic performance, behaviour and self esteem," he concludes....Landmark study uncovers reasons behind recurring back injury
...discovered that people tend to compensate for back injuries by using many inappropriate muscles in place of the muscles that hurt. "People with back pain guard the injured area by using more muscles than they need to," Marras said.......g-term conditions. Insurance companies should also compensate doctors and other caregivers for the time they spend coordinating care for patients, instead of only paying the single office visit. "Care for chronic conditions is the number one reason people seek medical attention. The current system is not workin...... in ChAT in MCI demonstrates the brains ability to compensate in one area for deficits in another to try to maintain normal function. As the disease progresses, the brain eventually loses that battle and levels return to normal, then decrease as the disease moves into its final stages. More than 900 older Catho...Robotic physical therapy improves movement long after stroke
...on during that early period most patients learn to compensate for the loss and make little or no attempt to use the impaired limb, which leads to even more disability, says Fasoli. To test the theory that recovery could continue long term, Fasoli and other team members used a robot designed by MIT engineers f...