The rapid change within the South African workplace and competitiveness of organisations required employed and unemployed individuals to be trained and retrained as a large number of the South African population is unskilled. In the chemical industry employability of individuals is of extra ordinarily importance to both employer and individual. One of the main focuses of the Chemical Industries Education and Training Authority (CHIETA) is to enable learners through the promotion of employability to enter into learnerships to develop the necessary skills to develop sustainable livelihoods (CHIETA, 2011). There are high expectations of the learnerships system which was implemented during 2001 in South Africa. This system is set as a key strategic component of the National Skills Development Strategy, 2011-2016. Learnership programmes are implemented in South African organisations which is a great platform for employee development. Employees are afforded the opportunity to broaden their knowledge in the studied field and gain the needed skills within the organisation (Department of Labour, 1997). Learnerships are seen as a demand driven formal labour market tool, to address the existing need for critical, scarce - high and intermediate - skills levels. Simultaneously, it is seen as an employment-creation mechanism at the low and intermediate skills levels. This statement is a fundamental principle of a survey done on learnerships (Smith, Jennings, & Solanki, 2005). Researchers concluded that learnership programmes are the ideal for employees to acquire the needed skills to become competent and to provide jobs for the unemployed and in this manner enhance employability (Smith et al., 2005). The main aim of article one was to determine the differences in the levels of the psychological contracts, violation of the psychological contract, learners‟ expectations, employability, life satisfaction and work engagement between individual variables (type of learnership contracts, gender, race, age, date of commencement of learnership, date of completion of learnership). A cross-sectional survey design was used. A total of 237 learners completed the questionnaire. The psychological contract scale, violation of the psychological contract scale, learners‟ expectations scale, employability scale, life satisfaction scale, work engagement scale and biographical scale were administered. The results indicated that a statistically significant difference was obtained for age, date of commencement of learnership and date of completion of learnership, but no relationship exists with type of learnership contract, gender and race. The aim of the second article was to determine the relationship between learners within learnership psychological contract, state of the psychological contract, expectations and violations of psychological contract, employability, work engagement and life satisfaction. Furthermore, the study strives to determine whether violation of the psychological contract, learners‟ expectations and employability could predict life satisfaction of learners. A practically significant relationship with a medium effect exists between violation of the psychological contract, state of psychological contract (negative), and employability (positive). A positive practically significant relationship exists between state of psychological contract and work engagement. No relationship was found between employability, life satisfaction and work engagement. A positive practically significant relationship with a medium effect exists between life satisfaction and work engagement. Employer obligations and employability predict life satisfaction. The state of the psychological contract (trust) and life satisfaction predict work engagement of learners. / MA (Labour Relations Management), North-West University, Vaal Triangle Campus, 2014

Privacy has always been a respected value regardless of national borders, cultural differences, and time in every society throughout history. This study focuses on the unprecedented changes in the traditional forms of privacy and consequent concerns with regard to invasion of privacy along with the recent emergence and wide use of the Internet. Government intrusion into private domains through the Internet is examined as a major concern. Privacy invasions by Web marketers, hacker threats against privacy, and employer invasion of employee privacy at the workplace are discussed respectively. Then a set of possible solutions to solve the current problems and alleviate the concerns in this field is offered. Legal remedies that need to be performed by the government are presented as the initial solution. Then encryption is introduced as a strong technical method that may be helpful. Finally, a set of individual measures emphasized as complementary practical necessities. Nevertheless, this study indicates that technology will keep making further changes in the form and concerns of privacy that possibly may outdate these findings in the near future, however, privacy itself will always remain as a cherished social value as it has always been so far.

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Title: Influence of errors to regression model Author: Bc. Vlasta Poliačková Department: Department of Probability and Mathematical Statistics Supervisor: doc. RNDr. Petr Lachout, CSc. Supervisor's e-mail address: Petr.Lachout@mff.cuni.cz Abstract: The submitted work deals with the regression model, and the influence of errors to regression. Thesis describes different types of violations of assumptions re- quired to the error term and their impact to the properties of the regression model. In the next part, there are discussed various statistical approaches applicable in the case of violation assumptions of regression model such as heteroscedasticity or autocor- relation of the residuals. In the application part, there is used mainly knowledge of Box - Jenkins methodology. In this section it is described in detail how to build a Box - Jenkins models and forecasts of future values for various real financial time series. In processing of the data are used models of ARMA, ARIMA and SARIMA. In an example, forecasts of the models are compared to real future values of the time series. Keywords: regression, violation of assumptions, error term, Box-Jenkins methodo- logy, time series

Weak interactions in an atomic system by external electromagnetic fields or nucleon-nucleon interaction cause perturbations in the wave-function and energy levels of electrons, which allow for transitions that are otherwise forbidden. Of particular interest are magnetic dipole (M1) transitions, Stark-induced transitions, and parity non-conserving (PNC) transitions. The PNC interaction in the hyperfine ground states is dominantly due to the anapole moment of the nucleus and there has been up-to-date only one such measurement carried out in any system; the Boulder group's ground-breaking measurement of the anapole moment in atomic cesium in 1997. Their result derived from two different hyperfine transitions, however, did not agree with the meson-coupling model from high energy physics experiments. Therefore, it is important to revisit the anapole moment through another method to cross-check the Boulder group's measurement. Our goal is to excite the nuclear-spin-dependent (NSD) PNC ground hyperfine transitions in cesium via radio-frequency (rf) and Raman excitation to directly determine the anapole moment. I present our progress toward measurement of the NSD transition in an atomic Cs beam geometry. We have developed a broadband rf cavity resonator to strongly suppress the magnetic dipole (M1) transition while enhancing the forbidden PNC electric dipole (E1) transition. We employed an injection locking scheme to generate a pair of phase-coherent Raman lasers far detuned from the cesium D2 line (852 nm) with a 9.2 GHz frequency difference. I report various measurement data from atomic signal via rf and Raman excitation. In the next generation of measurements, we will carry out interference experiments between rf and Raman transitions by varying the phase relations of the rf and Raman lasers fields. Finally, based on the measurements, I discuss a novel robust measurement technique involving interference of the Raman, M1 and E_PNC contributions.<br>

Submitted by admin tede (tede@pucgoias.edu.br) on 2016-09-05T18:05:03Z No. of bitstreams: 1 VALTECINO EUFRÁSIO LEAL.pdf: 636488 bytes, checksum: 45674ed9c91ffc071145fa69701692c8 (MD5) / Made available in DSpace on 2016-09-05T18:05:03Z (GMT). No. of bitstreams: 1 VALTECINO EUFRÁSIO LEAL.pdf: 636488 bytes, checksum: 45674ed9c91ffc071145fa69701692c8 (MD5) Previous issue date: 2011-02-04 / This study intends to examine the humanitarian situation of violation of the right food. Its development occurs in five chapters. In Chapter I, I present the theoretical basis for the primary and secondary research, which was marked by the literature, emphasizing the importance of the human right of food. In Chapter II, do an analysis of social rights and hunger, demonstrating that the indignity in a history in question is not something new. In this chapter, seeking specifics about the international and national legal framework surrounding the issue. In Chapter III dedicate the notions of development and environment, tying together these issues in food law. In chapter IV, I wonder about the biofuel and the broader socio-economic policies in the area for feeding. In Chapter V, I try to trace the idea of interference with the right food, defending the theoretical point of view, the importance of case law, the need for coherent policies and the participation of civil society in mitigating the framework of world hunger. / O presente trabalho pretende examinar a situação da violação humanitária ao direito alimentar. O seu desenvolvimento ocorre em cinco capítulos. No capítulo I, apresento o embasamento teórico principal e secundário para a pesquisa, que teve como marco o levantamento bibliográfico, enfatizando a importância do direito humano alimentar. No capítulo II, faço uma análise dos direitos sociais e da fome, demonstrando em histórico que a indignidade em questão não é assunto recente. Em tal capítulo, procuro especificidades sobre o quadro normativo internacional e nacional que envolve a matéria. Dedico o capítulo III a noções de desenvolvimento e meio-ambiente, enfeixando tais temas no direito alimentar. No capítulo IV, discorro sobre o agrocombustível e as implicações sócio-econômicas das políticas na área, para a alimentação. No capítulo V, procuro traçar a ideia de violação ao direito alimentar, defendendo do ponto de vista teórico, a importância da jurisprudência, a necessidade de políticas públicas coesas e da participação da sociedade civil organizada na atenuação do quadro de fome mundial.

A presente dissertação de mestrado visa a estudar a responsabilidade civil por danos decorrentes da prática de cartel, a qual é considerada como a mais grave infração à ordem econômica. No primeiro capítulo, o fenômeno do cartel é estudado sob a perspectiva econômica, analisando-se as principais características e efeitos da conduta. No segundo capítulo, examina-se a disciplina jurídica do cartel no direito brasileiro, estudando-se as normas que preveem a responsabilização pela prática de cartel na lei concorrencial e na esfera penal. O terceiro capítulo pretende analisar os objetivos e o papel da responsabilidade civil no contexto mais amplo da política de defesa da concorrência. O quarto capítulo estuda a reparação civil dos danos decorrentes do cartel no direito federal norte-americano e no direito comunitário europeu. O quinto capítulo examina a responsabilidade civil por danos decorrentes da prática de cartel no direito brasileiro. Nesse contexto, são examinados os pressupostos da reparação civil (ato ilícito, culpa, nexo causal e dano), a legitimidade ativa e passiva para as ações indenizatórias, a interação entre a responsabilidade civil e o programa de leniência, bem como a prescrição da pretensão indenizatória. No sexto capítulo, são analisadas algumas propostas de reforma do ordenamento jurídico brasileiro para aperfeiçoamento do sistema de reparação civil em matéria de cartel. Finalmente, a conclusão procura expor de maneira sistematizada as principais ideias apresentadas ao longo do trabalho, bem como avaliar o estágio atual da responsabilidade civil por danos decorrentes da prática de cartel no direito brasileiro. / This dissertation aims to study the civil liability for damages arising from cartel behavior, which is considered the most serious antitrust violation. The first chapter studies the cartel from an economic perspective, analyzing the key features and effects of the conduct. The second chapter examines the legal framework regarding cartel behavior under Brazilian law, by studying the rules that provide for the responsibility for cartel under antitrust law and at the criminal level. The third chapter aims to analyze the objectives and the role of civil liability in the broader context of antitrust policy. The fourth chapter studies the civil liability for damages arising from cartel behavior in US federal law and European Community law. The fifth chapter examines the civil liability for damages resulting from cartel behavior in Brazilian law. In this context, the chapter examines the requisites for civil liability (tort, fault, causation and damage), standing to sue and to be sued, the interaction between the indemnification claims and the leniency program, as well as the statute of limitations. The sixth chapter discusses some proposals to reform the Brazilian legal framework with the purpose of improving the system of civil liability concerning cartel behavior. Finally, the conclusion seeks to expose in a systematic way the main ideas presented throughout the work, and to assess the current state of civil liability for damages resulting from cartel behavior in Brazilian law.

Esta tese apresenta uma análise estatística detalhada dos dados de experimentos com neutrinos solares mais recentes, com duas diferentes soluções para oscilações de neutrinos, ambas caracterizadas por um grande comprimento de oscilação. A primeira baseada no mecanismo de oscilação padrão, ou seja, induzida por massa, sendo esta estudada nos casos de duas e três gerações e dentro do regime de quase-vácuo. E a segunda, uma exótica, que usa como mecanismo de oscilação uma possível violação do princípio de equivalência, que foi analisada somente para o caso de duas gerações, sendo este discutido para transições entre neutrinos ativos, e entre neutrinos ativos e estéreis. Nossos resultados mostraram que ambas soluções são consistentes com os dados de neutrinos solares e, também, no caso específico do quase-vácuo, observamos que a hipótese de três gerações ficou desfavorecida. / This thesis presents a well detailed statistical analysis using the recent data from solar neutrino experiments. This analysis was done in the framework of two different solutions of neutrino oscillations, both characterized by a long oscillation wavelength. The first was based on the standard mass induced oscillation mechanism, here we worked in the scheme of two and three neutrino generations within the quasivacuum regime. The second was an exotic mechanism, where the neutrino oscillation is due to a possible breakdown of the equivalence principle, this alternative was analyzed only for two neutrino generations, in the cases for the conversion among active neutrino and active to sterile neutrino. Our results show a good agreement between the solar neutrino data and both solutions, also in the specific case of quasivacuum, we found that the hypothesis for the three neutrino generation is disfavored.