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Search Results: 1 - 10 of 153558 matches for " Charles F. Nelatury "
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Parameter Estimation in Different Enzyme Reactions  [PDF]
Sudarshan R. Nelatury, Charles F. Nelatury, Mary C. Vagula
Advances in Enzyme Research (AER) , 2014, DOI: 10.4236/aer.2014.21002
Abstract: Enzyme kinetic parameters have been estimated using MATLAB software via the Wilkinson non-linear regression technique. The MATLAB script file written to implement this technique is short and very straightforward. Several software tools are commercially available for this purpose, with many graphical user interface (GUI) features. A routine use of these packages might offer immediate satisfaction of interactive hands-on experience; but in some cases the researcher might wish to write his/her own code and compare the results for further confirmation. Today MATLAB is in use in almost all the schools and laboratories as a standard software tool. So this paper is aimed at helping enzyme researchers to make use of this powerful software for estimation of parameters. It enables the incorporation of the analytical steps behind parameter estimation in an easy-to-follow manner and furnishes better visualization.
How Rich Is Your Enrichment Program?  [PDF]
Michael F. Shaughnessy, Charles Waggoner
Creative Education (CE) , 2015, DOI: 10.4236/ce.2015.67066
Abstract: The term “enrichment” has been loosely applied to gifted children and gifted programs over the years. However, there is very little agreement as to this term, and there is minimal if any short term or long term evaluation over time regarding the benefits of this term and there is almost no long term research on the impact of various “enrichment” programs, nor can the average parent be assured of implementation with fidelity or integrity. In addition, “enrichment” varies from grade to grade, school to school and state to state, and the definition of enrichment varies from subject to subject and child to child. On-going objective evaluation is minimal at best. This paper will attempt to review the various programs that constitute “enrichment”. Some enrichment programs focus on higher order thinking skills, other critical thinking skills, other reasoning, other inferential and inductive and deductive reasoning. Some programs focus on “projects” while others examine community services. This paper explores this issue and examines some of these relevant, salient issues and discusses some of the issues regarding this term. Some “enrichment” processes and procedures will be addressed and concerns elaborated on.
Higgs and Supersymmetry searches at the Large Hadron Collider
F. Charles
Physics , 2001,
Abstract: We present here the results for Higgs and Supersymmetry prospective searches at the Large Hadron Collider. We show that for one year at high luminosity, Standard Model and MSSM Higgs should be observed within the theoretically expected mass range. MSUGRA and restricted phenomenological MSSM searches lead to discovery of up to 2.5 TeV squarks and gluinos.
The Educational Implications of ADHD: Teachers and Principals Thoughts Concerning Students with ADHD  [PDF]
Michael F. Shaughnessy, Charles R. Waggoner
Creative Education (CE) , 2015, DOI: 10.4236/ce.2015.62020
Abstract: As attention deficit hyperactivity disorder has been recognized for many years, it is now an established part of our educational vernacular and it continues to be addressed in classrooms, and in meetings across America. Children are continually being assessed, Section 504 plans are being written and teachers receive in—service as to how to cope with children in classrooms across America. This paper will review some of the educational implications of ADHD in the schools— many of which are well known, and some only tangentially recognized. It is hoped this this paper will sensitize teachers, principals, school psychologists and others working with ADHD.
Transverse Mercator with an accuracy of a few nanometers
Charles F. F. Karney
Physics , 2010, DOI: 10.1007/s00190-011-0445-3
Abstract: Implementations of two algorithms for the transverse Mercator projection are described; these achieve accuracies close to machine precision. One is based on the exact equations of Thompson and Lee and the other uses an extension of Krueger's series for the projection to higher order. The exact method provides an accuracy of 9 nm over the entire ellipsoid, while the errors in the series method are less than 5 nm within 3900 km of the central meridian. In each case, the meridian convergence and scale are also computed with similar accuracy. The speed of the series method is competitive with other less accurate algorithms and the exact method is about 5 times slower.
Algorithms for geodesics
Charles F. F. Karney
Physics , 2011, DOI: 10.1007/s00190-012-0578-z
Abstract: Algorithms for the computation of geodesics on an ellipsoid of revolution are given. These provide accurate, robust, and fast solutions to the direct and inverse geodesic problems and they allow differential and integral properties of geodesics to be computed.
Geodesics on an ellipsoid of revolution
Charles F. F. Karney
Physics , 2011,
Abstract: Algorithms for the computation of the forward and inverse geodesic problems for an ellipsoid of revolution are derived. These are accurate to better than 15 nm when applied to the terrestrial ellipsoids. The solutions of other problems involving geodesics (triangulation, projections, maritime boundaries, and polygonal areas) are investigated.
Quaternions in molecular modeling
Charles F. F. Karney
Physics , 2005, DOI: 10.1016/j.jmgm.2006.04.002
Abstract: Quaternions are an important tool to describe the orientation of a molecule. This paper considers the use of quaternions in matching two conformations of a molecule, in interpolating rotations, in performing statistics on orientational data, in the random sampling of rotations, and in establishing grids in orientation space. These examples show that many of the rotational problems that arise in molecular modeling may be handled simply and efficiently using quaternions.
Sampling exactly from the normal distribution
Charles F. F. Karney
Physics , 2013,
Abstract: An algorithm for sampling exactly from the normal distribution is given. The algorithm reads some number of uniformly distributed random digits in a given base and generates an initial portion of the representation of a normal deviate in the same base. Thereafter, uniform random digits are copied directly into the representation of the normal deviate. Thus, in contrast to existing methods, it is possible to generate normal deviates exactly rounded to any precision with a mean cost that scales linearly in the precision. The method performs no extended precision arithmetic, calls no transcendental functions, and, indeed, uses no floating point arithmetic whatsoever; it uses only simple integer operations. It can easily be adapted to sample exactly from the discrete normal distribution whose parameters are rational numbers.
Numerical Techniques for the Study of Long-Time Correlations
Charles F. F. Karney
Physics , 2004,
Abstract: In the study of long-time correlations extremely long orbits must be calculated. This may be accomplished much more reliably using fixed-point arithmetic. Use of this arithmetic on the Cray-1 computer is illustrated.
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