In this paper, we study the following Chromatic Cone Clustering (CCC) problem: Given n point-sets with each containing k points in the first quadrant of the d-dimensional space R, find k cones apexed at the origin such that each cone contains at least one distinct point (i.e., different from other cones) from every point-set and the total size of the k cones is minimized, where the size of a co...

Submitted: Apr 9, 2004; Revised: Jul 19, 2004; Accepted: Jul 19, 2004 Address for correspondence: Robert Diasio, MD, University of Alabama at Birmingham, Department of Pharmacology and Toxicology and UAB Comprehensive Cancer Center, 1824 6th Ave S, Wallace Tumor Institute, Room 620, University of Alabama at Birmingham, Birmingham, AL 35294-3300 Fax: 205-975-5650; e-mail: [email protected]...

Good control charts for high quality processes are often based on the number of successes between failures. Geometric charts are simplest in this respect, but slow in recognizing moderately increased failure rates p. Improvement can be achieved by waiting until r > 1 failures have occurred, i.e. by using negative binomial charts. In this paper we analyze such charts in some detail. On the basis...

BACKGROUND Clear-cell carcinoma of the ovary (CCC) is often diagnosed at childbearing age, or sometimes during treatment for infertility. Therefore, most young women with early-stage CCC wish to preserve their reproductive and endocrine functions if possible. METHODS Clinicopathologic data collected under the central pathological review system were subjected to survival analyses. We analyzed ...

Control chart is the most important Statistical Process Control tool used to monitor reliability and performance of industrial processes. For monitoring changes in process dispersion, the R and S charts are widely used. These control charts perform better under the ideal assumption of normality but are well known to be very inefficient in presence of outliers or departures from normality. In th...

________________________________________________________________________________ Abstract The distribution of chlorocholine chloride (CCC) residue or its metabolites in the meat and eggs of laying hens was studied using the N delta value (δN) and N atom % derived from N-CCC containing diets. In a completely randomised design, 20 laying hens were divided into four groups allocated four different...