241,190 research outputs found

    Statistical methods for cricket team selection : a thesis presented in partial fulfilment of the requirement of the degree of Master of Applied Statistics at Massey University

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    Cricket generates a large amount of data for both batsmen and bowlers. Methods for using this data to select a cricket team are examined. Utilising the assumption that an individual's natural ability is expressed via performance outputs, this thesis seeks to describe and understand the underlying statistical processes of player performance. Randomness is tested for and then the distributional properties of the data are sought. This information is then used to monitor the estimate of natural ability via widely accepted control methods, such as Shewhart control charts, CUSUM, EWMA and multivariate versions of these procedures. To accommodate the distribution presented by batting scores, a new control chart based on quartiles is also studied. Further, ranking and selection procedures employ the estimates of individual ability to select the best individuals and note the probability of correct selection. Major contributions of this study include: a) Development of performance measures for cricket b) 2 - Dimensional runs test, with further applicability outside cricket. c) Statistical interpretation specific to cricket • Outliers are very important • Form is autocorrelation • Zone rules for cricket needed to detect good/poor performance • Relatively short nominal ARL's d) Control Chart based on quantiles to preserve outlier influences in a non-parametric procedure. e) The recommendation of appropriate tools for monitoring batting, bowling and all-rounder performance and also choosing man of the match. f) Discriminates between different types of bowlers using the consistency of their performance measures. g) Evaluates the members of a team relative to potential contenders

    When Athletes are Wrongly Sanctioned Under the World Anti-Doping Code

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    Roles for the Uptake\u3csub\u3e2\u3c/sub\u3e Transporter OCT3 in Regulation of Dopaminergic Neurotransmission and Behavior

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    Transporter-mediated uptake determines the peak concentration, duration, and physical spread of released monoamines. Most studies of monoamine clearance focus on the presynaptic uptake1 transporters SERT, NET and DAT. However, recent studies have demonstrated the expression of the uptake2 transporter OCT3 (organic cation transporter 3), throughout the rodent brain. In contrast to NET, DAT and SERT, OCT3 has higher capacity and lower affinity for substrates, is sodium-independent, and is multi-specific, with the capacity to transport norepinephrine, dopamine, serotonin and histamine. OCT3is insensitive to inhibition by cocaine and antidepressant drugs but is inhibited directly by the glucocorticoid hormone corticosterone. Thus, OCT3 represents a novel, stress hormone-sensitive, monoamine transport mechanism. Incorporating this transporter into current models of monoaminergic neurotransmission requires information on: A) the cellular and subcellular localization of the transporter; B) the effects of OCT3 inhibitors on monoamine clearance; and C) the consequences of decreased OCT3-mediated transport on physiology and/or behavior. This review summarizes studies describing the anatomical distribution of OCT3, its cellular and subcellular localization, its contribution to the regulation of dopaminergicsignaling, and its roles in the regulation of behavior. Together, these and other studies suggest that both Uptake1 and Uptake2 transporters play key roles in regulating monoaminergic neurotransmission and the effects of monoamines on behavior

    Technological Solutions for Energy Security and Sustainability

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    This paper addresses the question: how can we minimize the expected time between now and the time when we achieve three measures of sustainability and security together -- independence from oil in cars and trucks, very deep reductions in greenhouse gas emissions and deep reductions in natural gas for electricity? Specific new technologies and metrics for progress are discussed, in context, linked to new information from IEEE, NSF, the State of the Future project and other sources

    Two generic transfers and a synonymy for some North American Elateridae (Coleoptera)

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    During various studies, three instances of necessary taxonomic change were found. These changes are provided here to clarify the taxonomy of these taxa for those studies
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