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science lifescience lifescientific researches,developments and events are included Articles
Protons - Everything Revolves Around Spin
2007-12-18 14:39:00 Current understanding of the spin structure of protons has been summarised in a single book for the first time. The book examines attempts to solve one of the greatest puzzles of physics. Models and experiments to date have been unable to properly explain a fundamental property of protons spin. Published by Dr. Steven Bass as part of an Austrian Science Fund FWF project, the book summarises over 1,000 publications and the results of a global research programme on this phenomenon. Many particles rotate around their own axis like spinning tops. However, unlike spinning tops, this spin has a fundamental influence on the properties of the particle - and therefore on our world. Quantum physical interactions mean that spin is responsible for the magnetic moment of protons, and therefore also the stability of the universe. It is a truly fundamental force. This makes it all the more sur... More About: Spin , Proto
Guiding the Light
2007-12-18 14:35:00 Pioneering research is shining new light on our understanding of the way we see the world. Optical fibres have now been found to exist in vertebrate eyes, channelling light down their length and delivering it without distortion straight to the cells that 'see'. Incredibly sophisticated in structure and function, the construction of the retina has puzzled researchers ever since the finer structures of the eye were first resolved over 150 years ago: the retina is built the 'wrong' way around. The cells responsible for light sensing are sited at the back of the eye, furthest from the incoming light. An advanced understanding of the 'inverted retina' has now been revealed by Dr Jochen Guck, newly arrived at the Cavendish Laboratory, while working with a team of scientists at the University of Leipzig, Germany. The results of this study have recently been published in PNAS (Franze et al., Müller cells are Living Optical Fibers in the Vertebrate Retina. Proc. Natl. Acad. Sci. ... More About: Light
Z-shaped incision enhances minimally invasive surgery
2007-12-18 13:43:00 A novel surgical technique allowing doctors to operate on patients by making a Z-shaped incision inside the stomach could potentially replace certain types of conventional surgery in humans, according to Penn State medical researchers who have successfully demonstrated the procedure in pigs.If the technique ultimately proves successful in human trials, researchers say it could circumvent the long painful recovery times and medical complications associated with surgery.The new approach, known as NOTES (natural orifice transluminal endoscopic surgery), involves using a natural opening in the body, in this case the mouth, to advance a flexible video endoscope into the stomach. Using this tube, and the instruments contained within it, doctors currently make a small straight incision in the stomach to gain access to the abdominal cavity and the organs requiring attention."Theoretically, by eliminating body wall wounds with their associated complications and allowing some procedures to be... More About: Surgery , Urge 1, 2, 3, 4, 5 |
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