Dans ce travail, une approche de reconnaissance de l’orateur en utilisant un microphone de contact est développée et présentée. L'élément passif de contact est construit à partir d'un matériau piézoélectrique. La position du transducteur piézoélectrique sur le cou de l'individu peut affecter grandement la qualité du signal recueilli et par conséquent les informations qui en sont extraites. Ainsi, le milieu multicouche dans lequel les vibrations des cordes vocales se propagent avant d'être détectées par le transducteur est modélisé. Le meilleur emplacement sur le cou de l’individu pour attacher un élément transducteur particulier est déterminé en mettant en œuvre des techniques de simulation Monte Carlo et, par conséquent, les résultats de la simulation sont vérifiés en utilisant des expériences réelles. La reconnaissance est basée sur le signal généré par les vibrations des cordes vocales lorsqu'un individu parle et non sur le signal vocal à la sortie des lèvres qui est influencé par les résonances dans le conduit vocal. Par conséquent, en raison de la nature variable du signal recueilli, l'analyse a été effectuée en appliquant la technique de transformation de Fourier à court terme pour décomposer le signal en ses composantes de fréquence. Ces fréquences représentent les vibrations des cordes vocales (50-1000 Hz). Les caractéristiques en termes d'intervalle de fréquences sont extraites du spectrogramme résultant. Ensuite, un vecteur 1-D est formé à des fins d'identification. L'identification de l’orateur est effectuée en utilisant deux critères d'évaluation qui sont la mesure de la similarité de corrélation et l'analyse en composantes principales (ACP) en conjonction avec la distance euclidienne. Les résultats montrent qu'un pourcentage élevé de reconnaissance est atteint et que la performance est bien meilleure que de nombreuses techniques existantes dans la littérature. / In this work, a speaker recognition approach using a contact microphone is developed and presented. The contact passive element is constructed from a piezoelectric material. In this context, the position of the piezoelectric transducer on the individual’s neck may greatly affect the quality of the collected signal and consequently the information extracted from it. Thus, the multilayered medium in which the sound propagates before being detected by the transducer is modeled. The best location on the individual’ neck to place a particular transducer element is determined by implementing Monte Carlo simulation techniques and consequently, the simulation results are verified using real experiments. The recognition is based on the signal generated from the vocal cords’ vibrations when an individual is speaking and not on the vocal signal at the output of the lips that is influenced by the resonances in the vocal tract. Therefore, due to the varying nature of the collected signal, the analysis was performed by applying the Short Term Fourier Transform technique to decompose the signal into its frequency components. These frequencies represent the vocal folds’ vibrations (50-1000 Hz). The features in terms of frequencies’ interval are extracted from the resulting spectrogram. Then, a 1-D vector is formed for identification purposes. The identification of the speaker is performed using two evaluation criteria, namely, the correlation similarity measure and the Principal Component Analysis (PCA) in conjunction with the Euclidean distance. The results show that a high percentage of recognition is achieved and the performance is much better than many existing techniques in the literature.

Dans ce travail, nous définissons des objets composés de disques complexes marqués reliés entre eux par des segments de droite munis d’une longueur. Nous construisons deux séries d’espaces de module de ces objets appelés clus- ters, une qui sera dite non symétrique, la version ⊗, et l’autre qui est dite symétrique, la version •. Cette construction permet des choix de perturba- tions pour deux versions correspondantes des trajectoires de Floer introduites par Cornea et Lalonde ([CL]). Ces choix devraient fournir une nouvelle option pour la description géométrique des structures A∞ et L∞ obstruées étudiées par Fukaya, Oh, Ohta et Ono ([FOOO2],[FOOO]) et Cho ([Cho]). Dans le cas où L ⊂ (M, ω) est une sous-variété lagrangienne Pin± mono- tone avec nombre de Maslov ≥ 2, nous définissons une structure d’algèbre A∞ sur les points critiques d’une fonction de Morse générique sur L. Cette struc- ture est présentée comme une extension du complexe des perles de Oh ([Oh]) muni de son produit quantique, plus récemment étudié par Biran et Cornea ([BC]). Plus généralement, nous décrivons une version géométrique d’une catégorie de Fukaya avec seul objet L qui se veut alternative à la description (relative) hamiltonienne de Seidel ([Sei]). Nous vérifions la fonctorialité de notre construction en définissant des espaces de module de clusters occultés qui servent d’espaces sources pour des morphismes de comparaison. / We define objects made of marked complex disks connected by metric line seg- ments and construct two sequences of moduli spaces of these objects, referred as the ⊗ version (nonsymmetric) and the • version (symmetric). This allows choices of coherent perturbations over the corresponding versions of the Floer trajectories proposed by Cornea and Lalonde ([CL]). These perturbations are intended to lead to an alternative geometric description of the (obstructed) A∞ and L∞ structures studied by Fukaya, Oh, Ohta and Ono ([FOOO2],[FOOO]) and Cho ([Cho]). Given a Pin± monotone lagrangian submanifold L ⊂ (M, ω) with mini- mal Maslov number ≥ 2, we define an A∞ -algebra structure from the critical points of a generic Morse function on L. We express this structure as a cochain complex extending the pearl complex introduced by Oh ([Oh]) and further ex- plicited by Biran and Cornea ([BC]), equipped with its quantum product. This could also be seen as an alternative geometric description of a Fukaya cate- gory of (M, ω) with L as its only object, a hamiltonian relative version appear- ing in [Sei]. Using spaces of quilted clusters, we verify, using more general quilted cluster spaces, that this defines a functor from a homotopy category of Pin± monotone lagrangian submanifolds hL mono,± (M, ω) to the homotopy category of cochain complexes hK(Λ-mod) where Λ is an appropriate Novikov ring.

Over the last decade the focus has shifted to ensure a holistic view of employee well-being in organisations by focusing on both physical and psychological well-being. Previous research suggests that work characteristics and psychological work-related well-being influence both the individual (i.e. health) and organisational outcomes (i.e. commitment, safety, productivity, etc.). Moreover, the increasing importance of focusing on work-related psychological well-being of employees is evident in legislation from around the world. In South Africa the Occupational Health and Safety legislation, spesifically the Construction Regulations, also recognises the importance of the psychological well-being of employees and refers to it as ?psychological fitness?. However, no clear definition or instrument for psychological fitness exists. Similarly, no instrument exist to measure work characteristics of blue-collar workers. The objectives of this research were 1) to propose a defintion for psychological fitness of blue-collar employees 2) to propose a theoretical framework to better our understanding of psychological fitness 3) to develop a psychological fitness instrument for blue-collar employees that is suitable for the South African context 4) to test the psychometric properties of the newly developed psychological fitness instrument 5) to develop a work characteristics questionnaire for blue-collar mine workers to gain insight into their work experiences, and 6) to evaluate the psychometric properties of the newly developed job demands-resources scale for blue-collar mine workers. The empirical study consisted of two phases. During the first phase, following an extensive literature review, a definition and theoretical framework for psychological fitness was proposed. Thereafter, a new instrument for measuring psychological fitness was developed and tested. An instrument for measuring the work characteristics of blue-collar mine workers has also been developed to further the understanding of their work experiences. During the second phase, the psychometric properties of the newly developed psychological fitness instrument were tested (i.e. factorial validity, factorial invariance, reliability and external validity; N = 2769). Furthermore, the psychometric properties of the newly developed job demands-resources scale for blue collar workers were also investigated (i.e. factorial validity, reliability and the relationship with theoretically relevant external variables; N = 361). During the conceptualisation process, the definition of psychological fitness has been proposed based on previous work-related well-being literature. The work-related well-being concepts, distress and eustress were proposed as indicators of psychological fitness. Therefore, psychological fitness was defined as a state in which an employee display high levels of emotional and mental energy and high levels of psychological motivation to be able to work and act safely. The dimensions of burnout and engagement were proposed as possible indicators of psychological fitness and included exhaustion, mental distance, cognitive weariness, vitality and work devotion. Furthermore, the underlying work-related well-being theories and models were identified as the theoretic framework to enable the development of a questionnaire for psychological fitness. In order to ensure that the low literacy employees understand the meaning of each questionnaire close attention has been paid during the development of items. Firstly, the psychological fitness instrument (SAPFI) for blue-collar employees has been translated into all the official languages of South Africa following a multistage translation process. Secondly, the job demands-resources scale for blue collar mine workers (JDRSM) has been translated into the three most commonly spoken languages (Sesotho, isiXhosa and Setswana) by employees working in this specific mine. During this phase various problematic items were identified and eliminated from both questionnaires using the Rasch measurement model. The final phase included the validation study where the psychometric properties of both the new instruments were investigated. The SAPFI results provided evidence for factorial validity, factorial invariance, reliability and significant relations with external variables of the distress scale. Although evidence was provided for the factorial validity, reliability and external validity of the eustress scale, factorial invariance could not be confirmed. Furthermore, the JDRSM results provided evidence for the factorial validity, reliability (except for the workload scale) and external validity. Recommendations for future research were made. / Thesis (Ph.D. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2011.

Over the last decade the focus has shifted to ensure a holistic view of employee well-being in organisations by focusing on both physical and psychological well-being. Previous research suggests that work characteristics and psychological work-related well-being influence both the individual (i.e. health) and organisational outcomes (i.e. commitment, safety, productivity, etc.). Moreover, the increasing importance of focusing on work-related psychological well-being of employees is evident in legislation from around the world. In South Africa the Occupational Health and Safety legislation, spesifically the Construction Regulations, also recognises the importance of the psychological well-being of employees and refers to it as ?psychological fitness?. However, no clear definition or instrument for psychological fitness exists. Similarly, no instrument exist to measure work characteristics of blue-collar workers. The objectives of this research were 1) to propose a defintion for psychological fitness of blue-collar employees 2) to propose a theoretical framework to better our understanding of psychological fitness 3) to develop a psychological fitness instrument for blue-collar employees that is suitable for the South African context 4) to test the psychometric properties of the newly developed psychological fitness instrument 5) to develop a work characteristics questionnaire for blue-collar mine workers to gain insight into their work experiences, and 6) to evaluate the psychometric properties of the newly developed job demands-resources scale for blue-collar mine workers. The empirical study consisted of two phases. During the first phase, following an extensive literature review, a definition and theoretical framework for psychological fitness was proposed. Thereafter, a new instrument for measuring psychological fitness was developed and tested. An instrument for measuring the work characteristics of blue-collar mine workers has also been developed to further the understanding of their work experiences. During the second phase, the psychometric properties of the newly developed psychological fitness instrument were tested (i.e. factorial validity, factorial invariance, reliability and external validity; N = 2769). Furthermore, the psychometric properties of the newly developed job demands-resources scale for blue collar workers were also investigated (i.e. factorial validity, reliability and the relationship with theoretically relevant external variables; N = 361). During the conceptualisation process, the definition of psychological fitness has been proposed based on previous work-related well-being literature. The work-related well-being concepts, distress and eustress were proposed as indicators of psychological fitness. Therefore, psychological fitness was defined as a state in which an employee display high levels of emotional and mental energy and high levels of psychological motivation to be able to work and act safely. The dimensions of burnout and engagement were proposed as possible indicators of psychological fitness and included exhaustion, mental distance, cognitive weariness, vitality and work devotion. Furthermore, the underlying work-related well-being theories and models were identified as the theoretic framework to enable the development of a questionnaire for psychological fitness. In order to ensure that the low literacy employees understand the meaning of each questionnaire close attention has been paid during the development of items. Firstly, the psychological fitness instrument (SAPFI) for blue-collar employees has been translated into all the official languages of South Africa following a multistage translation process. Secondly, the job demands-resources scale for blue collar mine workers (JDRSM) has been translated into the three most commonly spoken languages (Sesotho, isiXhosa and Setswana) by employees working in this specific mine. During this phase various problematic items were identified and eliminated from both questionnaires using the Rasch measurement model. The final phase included the validation study where the psychometric properties of both the new instruments were investigated. The SAPFI results provided evidence for factorial validity, factorial invariance, reliability and significant relations with external variables of the distress scale. Although evidence was provided for the factorial validity, reliability and external validity of the eustress scale, factorial invariance could not be confirmed. Furthermore, the JDRSM results provided evidence for the factorial validity, reliability (except for the workload scale) and external validity. Recommendations for future research were made. / Thesis (Ph.D. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2011.

Conducting internal investigations in the corporate environment in South Africa has become an everyday occurrence where companies need to take action after an incident took place. Each company has a different view regarding their processes followed when investigating internal matters, and the different objectives that drive the process. Some companies would prefer the suspects be disciplined and removed from their employment, and no further action taken after the dismissal and some companies would have a different approach and would follow the process through the disciplinary, the criminal prosecution and institute civil litigation to recover losses. Investigation differs, and the approach would be different as well with various reasons for the approach of the company. To establish what the methodology is that is followed when initiating an internal investigation and the drive behind the methodology followed was done. The methodology and process followed determines how the internal investigation process is done and concluded to ensure that similar incidents do not occur again, and thus protect the corporate environment in South Africa. / Police Practice / M. Tech. (Forensic Investigation)

The presented dissertation thesis analyzes one of the largest protests of the Czechoslovak Stalinism-era - the Plze revolt against the currency reform in June 1953. From a conceptual perspective, the work draws on the theory of the so-called new social movements. Therefore it sets the well-known Plze incident into the context of previous protest actions that occurred in the Plze region in the course of the years 1948-1953. This method enables the author to chart the development of several varied protest cultures which had been employed in particular parts of society in Western Bohemia on a long term basis and which inspired the inception and the course of the Plze revolt in the year 1953. This way the work offers not only a considerably more precise critical description of the June protests but also their cultural genealogy. By the means of this genealogy the author reveals the structure of the main social movements that took part in the revolt and an associated complex of social conflicts that caused the protests. There were in particular the following three: a socially-motivated strike movement of industrial blue-collars, a pro-western movement of both student and blue-collar youth and a latent tension within the communist party which was becoming evident through a passive resistance of its rank...

Made available in DSpace on 2016-03-15T19:34:31Z (GMT). No. of bitstreams: 1 Georges Amauri Lopes.pdf: 1318748 bytes, checksum: 7414a99112e9a61d311cc5e645cce46d (MD5) Previous issue date: 2007-09-04 / If it is true that the contemporary societies are extremely complex, formed by many subgroups owner of different values, there is no reason to deny that all of them agree on a minimum of morality and types of behaviors necessary to make any pacific union in the society possible. The elements which are in that agreement are learned by the socialization procedure, and are sustained and protected by the informal social control in a first moment. When this control is no longer effective those fundamental elements and social conditions are at risk, the State must bring to itself the formal social control, which is made by the penal law, one of the many instruments that exist for it. Many of the fundamental social conditions may be put on danger by acts in the economic activity specifically. This paper intends to legitimate the economic penal law as a way of protecting the fundamental social conditions necessary for a pacific, fair and equal social life, which may be offended by abusive acts of the economic power. / Em que pese ser a contemporaneidade caracterizada por uma sociedade altamente complexa, na qual podem ser encontrados diversos sub-grupos orientados por valores ou padrões comportamentais diversificados, não se nega haver um mínimo consenso ético sem o qual não se faria possível a existência de qualquer coesão pacífica. Os elementos espirituais que a compõem são ensinados no processo de socialização e assegurados, num primeiro momento, pelo controle social informal. Quando este não se mostra mais capaz a tanto e bens jurídicos essenciais estão sob risco, o Estado tem o dever de chamar para si o controle social formal, constituindo-se o direito penal em um dos instrumentos existentes. Vários daqueles bens jurídicos podem ser lesionados por atos manifestados especificamente na atividade econômica. Esta dissertação tem por escopo fundamentar o direito penal econômico como meio de proteção aos bens jurídicos essenciais à coexistência social pacífica, justa e igualitária que podem ser colocados em risco pelos atos abusivos do poder econômico.

La thèse a été évaluée par les personnes suivantes: Carlo Morselli, directeur de recherche et professeur à l'École de criminologie; Anthony Amicelle, président du jury et professeur à l'École de criminologie; Jean Bérard, membre du jury et professeur à l'École de criminologie; Carla Nagels, évaluatrice externe et professeur à l'Université libre de Bruxelles L'auteur aimerait remercier le Fonds de recherche du Québec - Société et culture (FRQSC), le Centre international de criminologie comparée (CICC) et l'École de criminologie pour le support financier octroyé à différentes étapes de la rédaction de la thèse. / La recherche trouve ses origines d’un scandale touchant l’industrie de la construction et les milieux politiques au Québec de la fin des années 2000 (à travers les allégations de corruption et de collusion soulevées par les médias) à la fin novembre 2015 (avec le dépôt du rapport final de la Commission d’enquête sur l’octroi et la gestion des contrats publics dans l’industrie de la construction, ci-après CEIC). L’argument principal est que les années de scandale ont permis au Québec de transiter d’une province considérée comme la terre mythique de la corruption au Canada à une entité développant une des structures anticorruptions les plus novatrices et sophistiquées dans le monde. La thèse est construite comme une étude de cas qui s’intègre aux trois grandes sphères de l’étude du phénomène criminel telles que définies par Sutherland et Cressey, à savoir le passage à l’acte, la réaction sociale et le contrôle social (1947, p.1). Dans l’étude du passage à l’acte, le concept de crime étatico-corporatif est mis à profit afin d’exposer l’aspect symbiotique des systèmes criminels alimentés à travers une interaction fondamentale entre poursuite d’intérêts publics et poursuite d’intérêts privés. De tels systèmes furent en effet identifiés dans plusieurs municipalités du Québec. Pour cette partie de la thèse, les données relatives à l’ensemble des contrats de construction octroyés par appel d’offres public par la ville de Laval dans son histoire (1965-2013) sont analysées à travers diverses mesures de réseaux sociaux. Cette portion de la thèse utilise également les témoignages issus des travaux de la CEIC, et des entretiens semi-directifs réalisés avec des acteurs provenant de diverses autorités de lutte à la collusion (truquage des appels d’offres) et à la corruption au Québec. La combinaison de ces méthodes permet d’évaluer la nature intégrée, historique et spatiale des délinquances recensées au sein de diverses municipalités, avec des indicateurs de collusion qui remontent aussi loin qu’à la création de la municipalité lavalloise dans les années 1960. Dans l’étude de la réaction sociale, un modèle d’analyse intégratif emprunté au domaine de la sociologie de l’action publique (Lascoumes et LeGalès, 2012) est utilisé pour mettre en relief les forces structurelles, organisationnelles et individuelles derrière la constitution du scandale québécois. Cette deuxième grande section de la thèse illustre comment ce scandale s’insère dans des tendances nationales et internationales d’intolérance accrue du public et d’intensification des contrôles à l’égard des actes criminels (corruption, collusion, pots-de-vin, fraude) révélés au coeur du scandale. Enfin, dans l’étude du contrôle social, l’analyse des témoignages issus des audiences de la CEIC est jumelée aux données découlant d’entretiens semi-directifs réalisés avec 22 acteurs provenant d’agences de contrôle créées à la suite du scandale : l’Unité permanente anticorruption (UPAC), le Bureau de l’inspecteur général (BIG) de la ville de Montréal, et le Bureau d’intégrité et d’éthique de Laval (BIEL). Cette dernière section illustre comment la transition d’une scène réglementaire permissive et hautement déficiente à un environnement réglementaire axée sur une mobilisation sans précédent de ressources policières, sur le partage d’information et sur la poursuite des conduites illégales au pénal s’avère très avantageuse, mais s’est accomplie – et s’accomplit toujours – à travers de nombreux défis pour les contrôleurs. / The research originated from a political scandal which spanned several years (2009-2015) in the province of Quebec. The thesis’ main argument is that the scandal years saw Quebec transformed from being considered the “historical golden land” of Canadian corruption into a province which developed one of the country’s most sophisticated systems of corruption and white-collar crime control. The thesis was constructed as a case-study, and addressed the three principal objects of criminological analysis: the breaking of laws, the making of laws, and the reaction to the breaking of laws (Sutherland and Cressey, 1947, p.1). The study applied multiple methods to achieve these goals. In the study of criminal decision-making (breaking of laws), Kramer and Michalowski’s (2006) state-corporate crime concept was applied to demonstrate the presence of multifactorial features of criminal systems fuelled by misbehaving at the intersection of private and public interests. Such conspiracies were found to be generalized across several municipalities throughout the province. For this portion of the thesis, data on all construction contracts awarded through public procurement in the entire history of what appeared to be one of Canada’s most corrupt municipalities, Laval (the 13th largest in the country), was systematically collected from 1965 to 2013. It was then analyzed using various social network measures. Testimonies from Quebec’s Commission of inquiry on the awarding and management of public contracts in the construction industry (hereafter, CEIC) were also coupled with a dozen of interviews conducted with regulators and corruption authorities in Quebec. The combination of methods helped assess the integrated, spatial and historical nature of illicit activities which undergirded many municipalities, Laval being one of the most notorious one. Traces of bid-rigging indicators in public procurement were indeed traced back to as early as the city’s founding in the 1960s. In the study of the making of laws, Lascoumes and Le Galès’ (2002) sociology of public action framework was expanded to investigate the structural, organizational, and individual forces behind the Quebec scandal. This section of the thesis unravels the sudden urge to legislate and investigate schemes that were deeply rooted in the province’s history. By making sense of the Quebec scandal, this sub-section demonstrates how larger structural and contextual factors gradually established increased incentives for elected officials to enhance legal and institutional controls on white-collar and corporate crimes which were found to be systemic across Quebec’s construction and political scenes. Finally, in the study of the reaction to the breaking of laws, testimonies from the CEIC were combined with interviews conducted with 22 actors in control agencies established as a direct result of the scandal: the Permanent Anticorruption Unit (UPAC in French), the Inspector General Bureau (BIG in French) of the city of Montreal, and the Bureau of integrity and ethics of Laval (BIEL in French). This last section shows how transitioning from a state of practical passivity to one of intense controls, monitoring, institutional rearrangements, and legislative efforts was accompanied, for regulatory and police authorities, by several benefits but substantial challenges as well.

This theoretical diploma thesis deals with „nearly zero energy buildings“. The aim of the thesis is to evaluate building constructions based on their impact on thermal requirements fulfilment and apply results of the evaluation on a design of a nearly zero energy building. The thesis describes individual factors impacting energy consumption of a nearly zero house building, evaluates individual types of insulations systems for roof constructions, analyses window details, foundation details and connection of roof and external wall or the floor structure and external wall. The basic criteria for the evaluation is the fulfilment of the thermal requirements as well as the costs of the construction itself and energy consumption for the individual construction or detail. The specialized part of the thesis deals with design and comparison of 2 types of timber roof truss systems, the purlin roof and the collar roof. The suitability of the roof systems for nearly zero energy building is evaluated as well. The result of he thesis is the proposal of solutions for the nearly zero energy building. The proposal consists of layout solutions, design of suitable construction system, load-bearing system including drawings. The output is also Energy Performance Certificate.

<p>This research was a pilot study in a larger project that focused on how to retrieve knowledge from retiring long-term employees of a small university utility plant, incorporate that material into their existing training program, and during the process reduce the training time for current and future employees. Wade utility plant faced the retirement of eight employees with nearly 200 years of corporate knowledge within three years, but their current training program required seven to nine years to complete. The study utilized interviews, first-hand observation and partnership with current employees to explore how best to obtain the corporate knowledge that would be lost when the proletarian workers retired. The study revealed that the training program needed to be updated, and communication, trust and training evaluation continuity needed to be addressed. Due to these issues, trust was built through transparency by the researcher, and suggestions were made to management for moving forward. This study adds to the body of knowledge by utilizing knowledge capture techniques in a utility plant, highlighting effective knowledge capture techniques for proletarian workers, the importance of corporate planning for the effect of group retirements, and how incorporating proletarian workers into training creation can make a positive impact on company relationships.</p>