705,758 research outputs found

    DIAGNOSIS AND RECOMMENDER SYSTEM FOR SOME NEGLECTED TROPICAL DISEASES

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    Failure to promptly diagnose and treat of some tropical diseases such as chicken pox, cholera and typhoid fever is affecting the community-based management of such diseases. The high mortality rates caused by these diseases make the quest for effective diagnoses and appropriate treatment an essential task. Thus, precise diagnosis of these diseases coupled with appropriate treatment will result in their control, especially in the tropical regions, which also constitute the developing countries. The system works for this research was based on the client/server architecture, structured as a 3-tier application. The Web browser constituted the first tier, a middleware engine using some dynamic Web content technology active server pages (ASP) constituted the middle-tier and the database was the third tier. The implementation of the system had a front- end web based graphical user interface (GUI) application and back-end relational database management system (RDBMS). The Front–end was implemented with ASP.NET (using vb.net-programming language), while the back-end was designed with Microsoft queried language (MS SQL) server 2005. With this development, a prompt medical diagnosis, effective drug recommendations and promulgation of effective policies could be provided at community settings where there are shortages in material and human resources for managing these neglected tropical diseases

    Classification of static and homogeneous solutions in exactly solvable models of two-dimensional dilaton gravity

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    We give the full list of types of static (homogeneous)solutions within a wide family of exactly solvable 2D dilaton gravities with backreaction of conformal fields. It includes previously known solutions as particular cases. Several concrete examples are considered for illustration. They contain a black hole and cosmological horizon in thermal equilibrium, extremal and ultraextremal horizons, etc. In particular, we demonstrate that adS and dS geometries can be \QTR{it}{exact} solutions of semiclassical field equations for a \QTR{it}{nonconstant} dilaton field.Comment: 19 pages. To appear in Int. J. Mod. Phys.

    Improved linings for integrating spheres

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    Sphere surface is covered with plain weave of glass fibers coated with polytetrafluoroethylene and one or two layers of magnesium oxide vapor. The resultant lining is suitable for measurement of radiation in the ultraviolet, visible, and near-infrared wavelengths, is not damage prone, and is easily cleaned

    High energy collision of particles in the magnetic field far from black holes

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    We consider collision of two particles in the axially symmetric black hole metric in the magnetic field. If the value of the angular momentum |L| of one particles grows unbound (but its Killing energy remains fixed) one can achieve unbound energy in the center of mass frame E_{c.m.} In the absence of the magnetic field, collision of this kind is known to happen in the ergoregion. However, if the magnetic field strength B is also large, with the ratio |L|/B being finite, large E_{c.m.} can be achieved even far from a black hole, in the almost flat region. Such an effect also occurs in the metric of a rotating star.Comment: 9 pages. Misleading restriction qB>0 removed, conclusion slightly expande
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