This dissertation examines the influence of the psychological contract and leadership styles on the perceived performance of semi-professional rugby teams. Little research has connected the psychological contract and sport, and little research has investigated the effect of specific leader behaviours on the performance of sport teams. It was therefore the objective of this dissertation to analyse the content of the psychological contract of rugby team members, and to determine the correlation between the psychological contract and the perceived performance of rugby team members. This dissertation also set out to analyse the content of the preferred leadership style of the team captain and the own leadership style of team members, and to determine the correlation between leadership styles and perceived performance. A longitudinal research design was chosen, along with a non-probability sampling technique. The sample consisted of rugby team members from a prominent rugby-playing university in South Africa. Questionnaires were used to investigate the content of the psychological contract and preferred leadership style and own leadership style, as well as their relationship to perceived performance. The results indicated no correlation between the psychological contract and perceived performance, nor any correlation between leadership styles and perceived performance. A strong correlation, on the other hand, was found between the preferred leadership style of the team captain and the own leadership style of team members. A strong correlation between institute obligations and player obligations was also established. / Thesis (M.Com. (Industrial Sociology))--North-West University, Potchefstroom Campus, 2011.

Due to socio-political transformation, South Africa has been subjected to dramatic changes that influenced employment relationships, employment contracts between employees and employers arid the psychological contract of employees. Due to all these socio-political changes different groups of employees experience differences in their psychological contracts and have certain expectations that their organisation should fulfil. The general objective of this research is to determine the psychological contract of designated and non-designated groups of a banking institution in the North West Province. A cross-sectional survey design was used to collect the data and reach the objectives of this study. Stratified random sample (n = 131) was taken from permanently appointed designated and non-designated employees of different branches in a South African banking institution in the North West Province. A structured, self-completion questionnaire was used to collect the data. The Psycones Questionnaire and discrimination and affirmative action questions were selected from different existing questionnaires and were used to compile the questionnaire. Descriptive statistics (e.g. means, standard deviations, skewness and kurtosis) were used to analyse the data. Pearson product-moment correlation coefficients were used to assess the relationships between the variables. Multiple regression analyses were used to investigate the effects of the variables in this study, multivariate analysis of variance (MANOVA) was performed to assess the differences in the experience of affirmative action policies of demographic groups. Item-level analysis is performed by using analysis of variance (ANOVA). The results indicated that designated and non-designated groups of employees do not experience a difference in their breach or violation of their psychological contracts when affirmative action policies are correctly implemented and communicated. Based on the findings of this study organisations are advised to ensure that affirmative action policies are implemented correctly and communicated to all groups of employees, and then designated and non-designated employees would not differ in their experience of violation in their psychological contracts. Limitations in the research are identified and recommendations were made. / Thesis (M.Com. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2010.

A search is done on the entire BaBar data set for the neutrino-less tau decay tau->e gamma. No evidence for the decay is found and a 90% confidence level upper limit is determined to be 3.3 * 10^(-8) including systematic uncertainty. This measurement is a factor of three improvement from the previous best result from BaBar.

Data quality problems such as duplicate records, missing values, and violation of integrity constrains frequently appear in real world applications. Such problems cost enterprises billions of dollars annually, and might have unpredictable consequences in mission-critical tasks. The process of data cleaning refers to detecting and correcting errors in data in order to improve the data quality. Numerous efforts have been taken towards improving the effectiveness and the efficiency of the data cleaning. A major challenge in the data cleaning process is the inherent uncertainty about the cleaning decisions that should be taken by the cleaning algorithms (e.g., deciding whether two records are duplicates or not). Existing data cleaning systems deal with the uncertainty in data cleaning decisions by selecting one alternative, based on some heuristics, while discarding (i.e., destroying) all other alternatives, which results in a false sense of certainty. Furthermore, because of the complex dependencies among cleaning decisions, it is difficult to reverse the process of destroying some alternatives (e.g., when new external information becomes available). In most cases, restarting the data cleaning from scratch is inevitable whenever we need to incorporate new evidence. To address the uncertainty in the data cleaning process, we propose a new approach, called probabilistic data cleaning, that views data cleaning as a random process whose possible outcomes are possible clean instances (i.e., repairs). Our approach generates multiple possible clean instances to avoid the destructive aspect of current cleaning systems. In this dissertation, we apply this approach in the context of two prominent data cleaning problems: duplicate elimination, and repairing violations of functional dependencies (FDs). First, we propose a probabilistic cleaning approach for the problem of duplicate elimination. We define a space of possible repairs that can be efficiently generated. To achieve this goal, we concentrate on a family of duplicate detection approaches that are based on parameterized hierarchical clustering algorithms. We propose a novel probabilistic data model that compactly encodes the defined space of possible repairs. We show how to efficiently answer relational queries using the set of possible repairs. We also define new types of queries that reason about the uncertainty in the duplicate elimination process. Second, in the context of repairing violations of FDs, we propose a novel data cleaning approach that allows sampling from a space of possible repairs. Initially, we contrast the existing definitions of possible repairs, and we propose a new definition of possible repairs that can be sampled efficiently. We present an algorithm that randomly samples from this space, and we present multiple optimizations to improve the performance of the sampling algorithm. Third, we show how to apply our probabilistic data cleaning approach in scenarios where both data and FDs are unclean (e.g., due to data evolution or inaccurate understanding of the data semantics). We propose a framework that simultaneously modifies the data and the FDs while satisfying multiple objectives, such as consistency of the resulting data with respect to the resulting FDs, (approximate) minimality of changes of data and FDs, and leveraging the trade-off between trusting the data and trusting the FDs. In presence of uncertainty in the relative trust in data versus FDs, we show how to extend our cleaning algorithm to efficiently generate multiple possible repairs, each of which corresponds to a different level of relative trust.

In this thesis, using a general model independent form of the effective Hamiltonian, the CP-violating asymmetries in the b -&gt / d l l transition, when one of the leptons is polarized, is investigated. The sensitivity of the CP-violating asymmetries on the new Wilson coefficients are analyzed. Next, in the frame work of the same formalism, the polarized lepton pair forward&amp / #8211 / backward asymmetries in B-&gt / K l l decay are studied. We present the general expression for the nine double&amp / #8211 / polarization forward&amp / #8211 / backward asymmetries. It is obtained that, the zero point position of the forward&amp / #8211 / backward asymmetries of the doubly&amp / #8211 / polarized lepton pair does not depend on long distance effects but depends on short distance dynamics. Furthermore, it is shown that the zero position of AFB is very sensitive to the sign of the new Wilson coefficients. When sign of the Wilson coefficients is positive (negative) the zero position of the forward&amp / #8211 / backward asymmetries shifts to the left(right) compared to the SM. Moreover, the dependencies of the nine double&amp / #8211 / polarization forward&amp / #8211 / backward asymmetries on new Wilson coefficients, and the correlation of the averaged nine double&amp / #8211 / polarization forward&amp / #8211 / backward asymmetries with branching ratio, have been studied. It is observed that, the study of the nine double&amp / #8211 / polarization forward&amp / #8211 / backward asymmetries can serve as a good test in establishing new physics beyond the Standard Model. Finally, we observed that there are exist such regions of new Wilson coefficients for which the nine double&amp / #8211 / polarization forward&amp / #8211 / backward asymmetries considerably depart from the SM result, while the branching ratio coincides with that of the SM prediction. In other words, new physics effects can be established by analyzing polarized forwardbackward asymmetry in this region of the new Wilson coefficients.

The prospects of studying multi-strange and charmed antihyperon-hyperon physics and CP violation in hyperon decays in the upcoming PANDA experiment at FAIR, Germany, have been studied in this thesis. The angular dependence on polarisation parameters in the decay of the spin 3/2 Omega hyperon was calculated using the density matrix formalism. Expressions for the angular distributions in the Ω -> ΛK and the subsequent Λ -> pπ decays were derived. Simulations were performed for the pbar p -> Ξ+ Ξ-, pbar p -> Ω+Ω- and pbar p -> Λc-Λc+ reactions. Special attention was given to the reconstruction of spin variables. It is shown that PANDA will register tens of events per second for the pbar p -> Ξ+Ξ- reaction. This should be compared to the previously existing data of a handfull of events. For the other two reactions the event rates will be lower, but still reasonably high. This will be the first measurements of these reactions. It is shown that spin variables can be reconstructed in all three reactions for all production angles of the hyperons. Simulations concerning the possibility to measure CP violation parameters in hyperon decays were also made for the reactions pbar p- > Λbar Λ and pbar p -> Ξ+Ξ-. It was found that false signals from detector asymmetries disappears if no particle identification criterium is used and the analysis is restricted to events were the hyperon decays occur close to the beam axis. The effect of the magnetic field in the PANDA detector on the measurement of hyperon spin variables was investigated for the case of pbar p -> Λbar Λ. The effect was observed to be small for polarisation and negligible for spin correlations.

In 1857, hostilities broke out against the ‘rule’ of the East India Company (EIC) in northern India.Measures to suppress the hostilities, known as the 'Mutiny', 'Rebellion' or 'War' of 1857', included legislation enacted by the EIC's Government of India criminalising 'rebellion' and 'waging war' and establishing temporary civil and military commissions. From 1857 to 1859, the Government of India tried soldiers and civilians, including the last Mughal Emperor, the King of Delhi Bahadur Shah II, for their conduct during the hostilities. The law and trials have not previously been the subject of study. his thesis assesses the validity, according to the international law of the time, of the trial by military commission of the King of Delhi in 1858. The research and writing of this study is original for no review of the trial according to international law has previously been attempted. (For complete abstract open the document)

Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (p. 118-122).

Thesis (Ph. D.)--University of Washington, 2004. / Vita. Includes bibliographical references (p. 126-132).

Thesis (Ph. D.)--University of Chicago, Department of Physics, December 1999. / Includes bibliographical references. Also available on the Internet.