Ear, Nose and Throat

I more smell it is it of almonds close to that one them roses or them bananas? The scientists of the institute of Weizmann have answered now to this question (roses) showing for the first time that the cheiros can be tracings and at a distance relative between some definitive odors. Its results, that had appeared recently in methods of the nature, can help to scientists unravel the laws in principal that they are the base of our direction of I smell, as well as potential allowing odors of being typed in the future and being transferred through the computer.

We know that the musical note makes is more distant of there of what of the reverse speed in a scale - not only because our ears say in them in the distance are bigger, but because its frequencies are separate the most distant one. None such physical relationship had been discovered for cheiros, in the part because the molecules of the odor are much more difficult to fix for low of what healthy frequencies. To create its map, the scientists had started with the 250 odorante and had generated, for each one, a list of around 1,600 chemical characteristics. Of this series of data, the investigators, lead for Rafi Haddad, a student of third cycle with Prof. Noam Sobel in the department of the neurobiologia, and Prof. David Harel of the computer science and the department of applied mathematics, together with its colleague Rehan Khan, had created a multidimensional map of the cheiros that had disclosed in the distance enter a molecule of the odor and another one.

Eventually, pared the list of traces necessary to around point out for low an odor in the map the 40. Verific then to see if the brain recognizes this map, similar to the way that recognizes musical scales. They had previously reexamined published the studies numerous that had measured the tests standards neural of the reply to the cheiros in a variety of animals of laboratory - of the flies of fruit to the rats - and found that through all the species, next all the two cheiros were in the map, the tests more similar standards neural. The scientists had equally tested 70 new odors foreseeing the tests standards that neural comparisons would despertariam and of the functionings with the not-published results of the made experiences of the olfaco in the university of Tokyo. They had found that its predictions had combined prxima the experimental results.

These results loan the sustentation to the theory of the scientist that, contrarily at sight generally arrested I smell that it is a subjective experience, are universal laws there that govern the organization of the cheiros, and these laws determine as to our they perceive them brains.

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The article was adaptou today for the medical notice of the release of the original press.
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The research of Prof. Noam Sobel is supported by the center of Nella and Leon Benoziyo for neurocincia; the J&R foundation; e the deep one of Eisenberg Keefer for new scientists.

The research of Prof. David Harel is supported by the Arthur and the institute of Rochelle Belfer of the mathematics and computer science; e the deep one of Henri Gutwirth for the research. Prof. Harel is the person in charge of the chair ProfessorialWilliam Sussman.

The institute of science in Rehovot, IsraelWeizmann, is one of the research institutions to multidiscipline appraised of the world. Notable for its ample exploration of natural and accurate sciences, the institute is home the 2,600 scientists, students, technician and teams of support employees. The efforts of research of the institute include the search for new ways to fight the illness and the hunger, to examine main questions in the mathematics and computer science, to investigate the physics of the substance and it universe, to create new materials and to develop new strategies to protect the environment.

The notes of the press of the institute of Weizmann are affixed on the World Wide Web in http://wis-wander.weizmann.ac.il

Source:
Yivsam Azgad
Institute of Weizmann of science

The summer is being come close quickly, that it almost means its hour to leave there and to appreciate in such a way how much the warm time and the cool waters you can. If the ear of the swimmer, or the external one of the otitis, is an interest, the prevention and the treatment is more easy of what you think, says the Dr. Ian Storper, director of neurotology in the NewYork-Presbiteriano hospital/medical center of the University of Columbia.

The ear of the swimmer is a very common infection that occurs more frequently during months of the summer because of the raised humidity, of the heat and the exposition of the canal of ear to waters bacterium-loaded. The ear of the swimmer is really an inflammation of the canal of external ear e (wax producing) the glands of cerumen they line up that it. The root of the problem? It is an ear wax absence that chemically protects the fine skin of the ear canal and actuando as a barrier of meeting to the embryos. The sofredores complain generally of sharp pain and around the ear and of the jaw and the loss of the hearing. They can equally have itching severe in the ear canal, that, if striped fabric, will aggravate the circumstance.

The Dr. Storper offers these tips to hinder and to deal with the ear the swimmer:

- It prevents to use cotton swabs. The cotton swabs or all the other instrument can remove the ear wax that normally the lines and protect the delicate skin of the ear canal.

- It keeps its dry ears. If you develop the periodic infections due to ear of the swimmer, its ear must be kept dries with a plug of ear or some cotton with Vaseline to prevent come the wet one and to hinder a additional infection.

- In case that necessary, it looks the medical attention. The ear of the swimmer is a evitvel condition; , if however contracting, it can become completely painful and demand the use of eardrops and verbal antibiotics. If an infection if becomes, looks the medical attention — it does not leave it to ruin its summer.

NewYork-Presbiteriano hospital/medical center of Weill Cornell

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