Given A := {a, . . . , am} ⊂ Rn, we consider the problem of reducing the input set for the computation of the minimum enclosing ball of A. In this note, given an approximate solution to the minimum enclosing ball problem, we propose a simple procedure to identify and eliminate points in A that are guaranteed to lie in the interior of the minimum-radius ball enclosing A. Our computational result...

Sample size determination for a data set is an important statistical process for analysing the data to an optimum level of accuracy and using minimum computational work. The applications of this process are credible in every domain which deals with large data sets and high computational work. This study uses Bayesian analysis for determination of minimum sample size of vibration signals to be c...

BACKGROUND This paper analyzes the effect of the mean-square error principle on the optimization process using a Special Case of Hopfield Neural Network (SCHNN). METHODS The segmentation of multidimensional medical and colour images can be formulated as an energy function composed of two terms: the sum of squared errors, and a noise term used to avoid the network to be stacked in early local ...

We calculate bounds on per-lane Automated Highway System (AHS) capacity as a function of vehicle capabilities and control system information structure. We assume that the AHS lane is dedicated for use by fully automated vehicles. Capacity is constrained by the minimum inter-vehicle separation necessary for safe operation. A methodology for deriving the safe minimum inter-vehicle separation for ...

We describe a new method for rapidly generating stereochemically acceptable pathways in proteins. The method, called geometric targeting, is publicly available at the webserver http://pathways.asu.edu, and includes tools for visualization of the pathway and creating movie files for use in presentations. The user submits an initial structure and a target structure, and a pathway between the two ...

In 1930, Gödel [7] presented in Königsberg his famous Incompleteness Theorem, stating that some true mathematical statements are unprovable. Yet, this result gives us no idea about those independent (that is, true and unprovable) statements, about their frequency, the reason they are unprovable, and so on. Calude and Jürgensen [4] proved in 2005 Chaitin's heuristic principle for an appropriate ...

The problem of existence of a tree satisfying a given set of constraints on its vertices is considered. Specifically, given finite set of constraints P = {p1, p2, ..., pn}, we ask if there is an efficient algorithm to build a line-tree T = (V, E) such that for every constraint pi = (ab)(cd), where a, b, c, d are arbitrary elements of V , the path (ab) does not share any vertices with the path (...

quinazolinone ring system is renown because of its wide spectrum of pharmacological activities due to various substitutions on this ring system. in this study, the minimum inhibitory concentration of the synthesized compounds in our laboratory was determined by micro dilution alamar blue ® assay against six strains of bacteria (three gram-positive and three gram-negative) and three strains of f...

Policy & Politics • vol 44 • no 3 • 333–50 • © Policy Press 2016 • #PPjnl @policy_politics Print ISSN 0305 5736 • Online ISSN 1470 8442 • http://dx.doi.org/10.1332/030557315X14353331264538 This article is distributed under the terms of the Creative Commons Attribution 4.0 license (http:// creativecommons.org/licenses/by/4.0/) which permits adaptation, alteration, reproduction and distribution w...

Do media play any role in corporate governance? In this paper we argue that media pressure corporate managers and directors to behave in ways that are “socially acceptable”. Sometimes this coincides with shareholders’ value maximization, others not. We provide both anecdotal and systematic evidence that media affect companies’ policy toward the environment and the amount of corporate resources ...