<p> The anaerobic-to-aerobic power ratio is a useful tool to evaluate the strengths and weaknesses of both the aerobic and anaerobic energy systems. The traditional method of calculation has shown this ratio to increase with age in children and to plateau by late adolescence or early adulthood. However, by using the traditional approach, the aerobic component of the ratio is likely highly influenced by anaerobic sources and therefore, may not demonstrate the true proportional changes observed in the respective physiological capacities comprising this ratio with age through childhood and adolescence. The purpose of this study was to examine the age-related development of the power ratio using two new approaches. The lactate threshold (LT) and ventilatory anaerobic threshold (VAT) were identified in 31 competitive male hockey players ranging from 10 to 21 years of age and compared across three discrete age groups. Peak mechanical anaerobic power was obtained from a Wingate test (WAnT) and incorporated into the numerator of the power ratio, while peak mechanical aerobic power was obtained from a modified McMaster all-out progressive test and included into the denominator of the ratio. Mechanical power at the LT and VAT were also identified and integrated into the denominator of the power ratio and results compared to the traditional approach to identify similarities or differences in developmental trends with age. Furthermore, the reliability of the traditional, LT and VAT approaches was examined with retests of six subjects using intra-class correlation analysis and Method Error analysis. When power ratio approaches were compared among discrete age groups, significant differences (P≤0.05) were found between the youngest and oldest age groups for each of the three approaches. Notwithstanding the trend for progressive increases with advancing age group for all approaches, significant correlations with age were only found for the traditional approach (r=0.36). Finally, the VAT approach was the most reliable (r=0.95; ME=0.13) while the LT and traditional approaches demonstrated strong but non-significant test-retest correlations. Results of this study suggest that the LT and VAT approaches may theoretically be more accurate methods of measuring the power ratio than the traditional approach, as there is likely less anaerobic contribution to the denominator of the ratio. Each of the new approaches demonstrates expected age-related trends, and notwithstanding methodological and sample limitations, the VAT in particular, appears to be a more reliable and accurate means of assessing the power ratio compared to the traditional or LT approach.</p> / Thesis / Master of Science (MSc)

Aujourd’hui, la durabilité du modèle de développement de l’aquaculture est de plus en plus questionnée et une des solutions proposées consisterait à diversifier la production piscicole via la domestication de nouvelles espèces comme la perche commune, Perca fluviatilis, une espèce d’eau douce tempérée très intéressante pour la diversification de l’aquaculture continentale européenne. De nombreux aspects de la biologie de sa reproduction sont connus cependant, peu d’informations sont disponibles sur son développement. Or, des défauts de développement précoce, dont les causes sont encore mal définies, impactent actuellement la qualité de la production piscicole. C’est dans ce contexte que cette thèse vise à caractériser les succès et défauts de développement embryonnaire chez la perche commune à travers trois axes principaux : (i) déterminer une table de référence de l’embryogenèse normale permettant (ii) définir les défauts de développement tels que les malformations dans des conditions d’élevage différentes et (iii) identifier les liens entre différents paramètres de développement embryonnaire afin de déterminer des profils de développement variables. La première partie de ce travail a permis d’identifier la séquence précise de l’ontogenèse normale de cette espèce à travers la définition d’une table de développement embryonnaire alternative et flexible pour des espèces non-modèles, facilitant les comparaisons intra- et inter-espèces. Dans un second temps, l’identification la plus exhaustive possible de phénotypes anormaux a révélé 10 grandes catégories de malformations associées à des organes ou fonctions spécifiques. De plus, certains de ces défauts semblent fortement dépendants des conditions d’élevage des géniteurs ce qui permet d’identifier l’effet de potentiels facteurs extrinsèques sur le développement et d’améliorer les techniques de gestion des animaux. Enfin, l’ensemble de ces résultats et des paramètres mesurés durant l’embryogenèse ont permis d’effectuer une classification approfondie des pontes obtenues présentant des profils de développement similaires pour mettre en évidence des liens éventuels entre les divers phénotypes et paramètres utilisés. Les analyses de données effectuées ont montré que seulement 3 paramètres étaient nécessaires à la caractérisation de 4 profils de succès de développement variables : les taux de survie au début de l’organogenèse, d’éclosion et de malformations. A l’avenir, ces paramètres pourraient être généralisés permettant d’homogénéiser les critères d’évaluation du succès de développement chez d’autres espèces d’intérêt de poisson. L’ensemble de ces résultats constituent une base solide pour étudier l’effet des facteurs extrinsèques et/ou intrinsèques sur la qualité et le succès de développement embryonnaire / Currently, the durability of the aquaculture developmental model is clearly challenged and one solution consists to diversify the fish production by the domestication of new species such as the Eurasian perch (P. fluviatilis), a freshwater species promising and valuable for the diversification of European aquaculture. Several aspects of its reproductive biology are well known, nevertheless, only little information is available on its development. However, early developmental impairments, whose causes are unclear, actually impact the fish production quality. In this context, the present work aimed to characterize the developmental success and impairments in Eurasian perch on three main issues: (i) determine a model of normal embryogenesis table helping to (ii) define developmental impairments, in diverse rearing conditions and (iii) identify the relationships between various parameters of embryonic ontogenesis to characterize different patterns of developmental success. The first part of this study allowed identifying the accurate timing of normal ontogenesis of this species through the definition of an alternative and flexible developmental table to describe non-model fish species, allowing the intra- and inter-specific comparisons. In the second part, the exhaustive characterization of abnormal phenotypes revealed 10 categories of deformities linked to specific organs or functions. Moreover, some of these categories seemed to be related to rearing-conditions of the breeders allowing identifying the potential effects of extrinsic factors on the development and improving the management of fish. Finally, the previous results and the parameters measured during embryogenesis help to classify the several spawns obtained with the same developmental pattern and to highlight the potential relationships between diverse phenotypes and parameters. In addition, the data analyses showed that only 3 parameters are reliable to assess the developmental success: survival rate at the onset of the organogenesis, hatching and deformities rates. Henceforth, these parameters and this classification could be generalized as a new strategy to assess the developmental success in other fish species. All of these results provide a good basic knowledge to study the potential effects of various extrinsic and/or intrinsic factors on the developmental success and the embryonic quality

This study investigates the promise of using therapeutic adventure as an alternative therapeutic approach to address a public health issue: Veterans reticence towards seeking mental health assistance, despite their rising rates of mental health issues. To examine how the intersection between conformity to traditional masculine norms and Outward Bound for Veterans (OB4V) programming impacted psychosocial development, a quasi-experimental, longitudinal design was implemented on 159 male Veterans. The primary goals were twofold: 1) to determine whether improvement in six therapeutic outcome variables occurred due to the OB4V intervention; 2) to discover whether male Veterans’ level of conformity to traditional masculine norms influenced change in the therapeutic outcome variables. Outcome variables included: 1) mental health status; 2) personal growth initiative; 3) attitudes towards seeking professional psychological help; 4) psychological mindedness; 5) restriction of emotions; 6) subjective wellbeing. Results indicated a significant effect of treatment, suggesting that the OB4V treatment promoted Veterans improvement in all the therapeutic outcome variables, except psychological mindedness. Findings also showed that the significant effect of treatment was associated with Veterans’ improvement in therapeutic outcome variables over all time points irrespective of their level of conformity to traditional masculine norms. / text

Parmi les pratiques d’intervention sociale qui se produisent quotidiennement dans les milieux institutionnel et associatif au Québec, une catégorie est particulièrement ciblée depuis quelques décennies, les jeunes ou la jeunesse. En s’inscrivant dans une démarche réflexive et exploratoire sur les fondements des pratiques d’intervention auprès des jeunes, le présent mémoire propose d’explorer le sens et la pertinence sociale de ces dernières à travers les perspectives des intervenants eux-mêmes. Pour ce faire, nous effectuons des études de cas selon une approche clinique et critique en sociologie. En allant chercher dans les témoignages d’un certain nombre d’intervenants des milieux institutionnel, communautaire et de l’employabilité leur connaissance expérientielle concernant la pratique d’intervention auprès des jeunes, nous dégageons des conceptions du social ou des sociologies implicites particulières. Se dégagent quatre idéaux-types - systémique, informationnel, normatif et clinique – qui visent respectivement l’émancipation, l’aide à l’insertion, la socialisation aux normes et le soutien humain. Notre analyse en termes de sociologie implicite explore la double question du sens selon les agents et de la fonction selon les processus engendrés. Elle permet d’articuler les conceptions que les agents sociaux se font de leur pratique avec son inscription dans le monde social. Ainsi, nous concluons que les pratiques d’intervention auprès des jeunes participent non seulement à la transformation sociale par l’ouverture d’espaces de liberté et de compréhension et par le soutien humain offert mais aussi à la normalisation et au contrôle par la constitution du marché du travail et/ou du monde adulte comme réalités auxquelles les jeunes doivent s’adapter. / Over the last several decades, one category of the population has been particularly targeted by social intervention in Quebec as elsewhere: youth. This thesis aims to examine the meaning and social relevance of intervention practices directed to youth, through a reflexive and exploratory study of their foundations as they are perceived and explained by practitioners themselves. The study involves a series of case studies carried out using an approach that blends clinical and critical sociology. By seeking out a number of practitioners’ interpretations of their practical experience, within institutional, community and employability milieux, we elicit their conceptions of the social, or the “implicit sociology”, that underlies their practices. Four ideal-typical conceptions are identified - systemic, informational, normative and clinical - which have as their objectives, respectively, emancipation, social inclusion, socialization and human support. The analysis in terms of “implicit sociology” explores the double question of meaning according to these social agents and of function according to the processes that are fostered by intervention. It allows for an articulation of the ways in which these social agents conceptualize their practices and how these practices are inscribed in the social world. We find that social intervention practices targeting youth engage not only in social transformation, through opening up spaces for freedom and understanding and through the offer of human support, but also, in “normalization” or social control, by constituting the labour market and the adult world as realities to which youth must adapt

The thesis deals with alternative approaches to education at high schools in the Czech Republic. The starting points of the thesis are mainly the historical context of alternative education and the characteristics of the Czech high schools and their students with a focus on private schools. The main areas of interest are some didactic principles, selected forms and methods of teaching, formative assessment and specific position of a teacher, which are stated as crucial, based on the research findings. The thesis also provides a brief overview of high schools in Prague which are considered innovative. Two such high schools are examined in detail in the empirical survey. Their stories are comprehensively processed using the multiple case study method. Key words: Alternative Approaches to Education, Alternative Schools, High Schools, Innovations in Education, Case study

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The thesis is focused on a subjective perspective of students from Faculty of Education of University of South Bohemia in České Budějovice on attitudes in education and on potential application of these methods in their practise. In this thesis is covered general exploration which characterizes particular types of alternative schools and alternative approaches in the process of education. Data were gained from questionnaire and with usage of didactical test. On research were participated 139 students from Faculty od Education of University of South Bohemia in České Budějovice. In the result part are covered finding outs which refer to fact that most of students would use alternative attitudes during their practise even if only small part of them have ever visited any of alternative schools. The higher percentage of respondents answered that they have only limited information about alternative education which was verified by didactical test. The average access from the test was 50%.

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Animal-assisted therapy (AAT) and equine-assisted therapy/learning (EAT/L) are innovative techniques in counselling, psychotherapy, mental health, coaching, and other personal growth interventions. Although this field has experienced tremendous growth in the United States, very little is known about its Canadian equivalent. The purpose of this study was therefore to examine the current state of AAT and EAT/L in Canada, by conducting a national, bilingual (English and French) survey of helping professionals who involve animals in their practices. A total of 131 questionnaires were retained for analysis. The results of this study suggest that the field is very diverse, with a multitude of confusing terms and expressions, varying levels of education and training, and disagreement on how different practices are defined, resulting in a fragmented, confusing and inconsistent appearance. Recommendations for the evolution of the field and suggestions for future research are provided.

This master thesis deals with the affair Spiegel from 1962 and the Czech Television-Crisis from the turn 2000 and 2001. Both cases are compared by the conceptual approach of democratic consolidation from the Juan Linz's and Alfred Stepan's work The Problems of Democratic Transition and Consolidation (Baltimore, 1996). The analysis aims to find out whether German Federal Republic in 1962 and the Czech Republic on the start of the third millennium fulfilled the first three Linz's and Stepan's criteria of a consolidated democracy. The theoretical chapter highlights some of alternative approaches and discussions about democratic consolidation as an analytical tool in comparative politics.