A UCLA/VA study found that irritable bowel syndrome (IBS) patients under age 50 who undergo a colonoscopy with normal results arent reassured about their condition or seem to have an improved quality life due to the procedure ruling out a more serious condition.
BACKGROUND: Previous studies have shown that 10 percent of all colonoscopies in the U.S. are performed for evaluation of IBS symptoms. Irritable bowel syndrome affects 15 percent of the population and is a chronic disorder characterized by recurrent abdominal pain and altered bowel habits.
IMPACT:The study results suggest that the role of colonoscopy for irritable bowel syndrome patients may be limited. Authors note that definitive guidelines to diagnose IBS dont include colonoscopy and previous studies have shown a limited diagnostic value of colonoscopy with IBS for patients under age 50. Many doctors believed however, that a normal result may reassure the patient, which may not be the case according to this new UCLA study. Authors say the next step is a clinical trial to confirm study findings.
Rachel Champeau | EurekAlert!
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The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
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Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...
Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...
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