Afrikaans text / Die doel van hierdie studie was om te bepaal wat die invloed van motoriese oefening op die leervermoë van die leerder in die grondslagfase is. Vyf en twintig leerders is ewekansig verdeel in `n eksperimentele en kontrole groep. Oor `n tydperk van vyf weke, voor die aanvang van elke leerafdeling, het die eksperimentele groep, saam met die onderwyseres, klaskamer gebaseerde motoriese oefeninge verrig terwyl die kontrole groep geen intervensie ontvang het nie. Die Copeland’s checklist for Attention Deficit Disorder vraelys is as voor- en natoets gebruik. Na die afloop van die empiriese ondersoek het die eksperimentele groep `n verbetering getoon in onoplettendheid/afleibaarheid, impulsiwiteit, ooraktiwiteit/hiperaktiwiteit, onderaktiwiteit en aandagvermoë, terwyl die kontrole groep oor dieselfde tydperk verswak het of onveranderd gebly het. Die veranderinge was egter nie statisties betekenisvol (p≤0.05) nie. Hierdie resultaat dui slegs op „n tedens dat motoriese oefening 'n positiewe effek op die leerders se leervermoë in die grondslagfase het. / Educational Studies / M. Ed. (Educational Studies)

German text / Gutes Altern gelingt selbst bei den zumeist günstigen äusseren Voraussetzungen in der Schweiz nicht allen Menschen. Die Frage stellt sich, unter welchen Bedingungen sowohl echtes Wohlbefinden im Alltag als auch Lebenssinn und -perspektive erreicht und erhalten werden können. Gelingt dies bekennenden Christen besser als nicht religiösen Menschen? Im Hinblick auf diese Fragestellung untersuchte die vorliegende Arbeit die bisherige gerontologische Forschung hauptsächlich in der Schweiz. Es wurde versucht, die Begriffe Wohlbefinden, Lebenssinn in Verbindung mit Religionsgerontologie anhand einzelner Exponenten zu definieren und das Zusammenspiel der Faktoren aufzuzeigen. In einer qualitativen empirischen Studie wurden gemäss der Grounded Theory zwölf Personen zwischen 50 und 80 Jahren (drittes Alter) mit zehn verschiedenen religiös/spirituellen Hintergründen mit Hilfe eines halbstrukturierten Leitfadens interviewt. Die Hauptthemen waren Wohlbefinden, Lebenssinn, Glaube/Spiritualität und Sterben/Tod. Der Zusammenhang zwischen alltäglichem Wohlbefinden und Lebenssinn bzw. -perspektive erwies sich als stark. Menschen mit einer persönlichen Gottesbeziehung schienen über mehr Ressourcen zu verfügen, nicht nur, um die eigene Endlichkeit zu akzeptieren oder schwierige Ereignisse im Leben zu meistern, sondern auch, um ihren letzten Lebenssinn in Gott zu erkennen, also ausserhalb von sich selbst. So waren sie besser befähigt, in ihrem Lebenslauf Erreichtes wieder abzugeben. Dieser Lebensstil benötigt Einübung, er kann jedoch auch gezielt gefördert werden. Aufgrund der Erkenntnisse konnten eine Reihe von Aufgaben formuliert werden, die den älteren Menschen Anweisung geben, wie sie diesen Lebensstil konkret in ihrem Alltag umsetzen könnten. Zudem scheint christliche Gemeinde ein geeigneter Rahmen darzustellen, wenn sie für das dritte Alter interdisziplinäre Lernangebote aus den Bereichen Medizin, Psychologie, Soziologie und Theologie wie auch die Möglichkeit persönlicher Seelsorge bereitstellt. Der ältere Mensch wird dadurch frei, sich generativ für andere einzusetzen und für sie da zu sein, innerhalb der christlichen Gemeinde oder auch ausserhalb als Teil der Gesellschaft. Somit wird dem neutestamentlichen Gebot der Nächstenliebe nachgekommen, Solidarität anderen gegenüber wird gelebt. Stärkeres Sinnempfinden und höheres Wohlbefinden sind geschenkte Nebenprodukte, die zu einem erfüllten Leben beitragen. / In Switzerland ageing is not necessarily unproblematic, even in the most favorable conditions. The question to answer is on what conditions in everday life a high level of wellbeing as well as meaning and perspective of life can be attained and preserved. Do professing Christians succeed better than non-religious people? The present study examined the results of current gerontological resarch in this respect, primarily in Switzerland. It attempted to define the terms of wellbeing, meaning of life in connection with religious gerontology with specific criteria and to show up the interaction of their several components. In a qualitative empirical study, according to the Grounded Theory, twelve persons between fifty and eighty years of age with ten different religious/spiritual backgrounds were interviewed with the aid of a semistructured interview guide. The main topics were wellbeing, meaning of life, faith/spirituality and dying/death. The relationship between everyday wellbeing and meaning of life and life perspective proved to be strong. People with a personal relationship with God seemed to have more resources to accept not only their own mortality or to cope with negative events in life, but to recognize their ultimate meaning of life to be in God, which is outside themselves. In consequence they were better able to let go any of their own achievements. This lifestyle requires practise and promotion. On account of the results a number of tasks were formulated to guide the older people in their daily life in practicing this lifestyle. The Christian community seems to be a suitable framework to provide interdisciplinary learning opportunities for the third age in the fields of medicine, psychology, sociology and theology as well as the opportunity of personal counseling. In this way, the never-ending process of maturation of individual elderly people should be encouraged. They are free, according to their talents, to get themselves involved with other people, to have time for them, that is within the Christian community or outside, in society. Thus, the New Testament commandment to love one another can be complied with, and solidarity with others will truly be fact. A stronger sense of meaning and a higher grade of wellbeing will be welcome by-products, which will contribute to a fulfilled life. / Practical Theology / D. Th. (Practical Theology)

The Internet of things (IoT) recently blossomed remarkably and has been transforming the everyday physical entities around us into an ecosystem of information that will enrich our lives in unimaginable ways. Authentication is one of the primary goals of security in the IoT and acts as the main gateway to a secure system which transmits confidential and/or private data.This thesis focuses on a Device-to-Device Mutual Authentication Protocol, designed for the smart home network, which is an essential component of communication in the Internet of Things(IoT). The protocol has been developed based on asymmetric cryptography to authenticate the devices in the network and for the devices to agree on a shared secret session key. In order to ensure the security of a communications session between the devices, the session keys are changed frequently - ideally after every communication session. The proposed scheme has been programmed in HLPSL, simulated and its efficiency verified using the SPAN/ AVISPA tool. When SPAN substantiates the protocol simulation and the attacker simulation, the back-ends of the AVISPA tool verifies the safety and security of the proposed authentication protocol. The thesis also evaluates the protocol's security against the attacks successful against protocols proposed by other researchers. / Graduate / 0544 / 0984 / 0537 / pwilson1@uvic.ca

Text in English / The purpose of this study was to gain a richer understanding of midlife experiences. Midlife is stereotypically viewed as a crisis and is one of the least studied, most illdefined stages in life, yet it’s one of the most significant stages. The epistemological framework for this study is post modernism, which allows for this study to document the transitions from crisis at midlife, as seen through the lens of Positive Psychology. This study was exploratory in nature and applied a qualitative ethnographic methodology. Six participants were interviewed from an ethnographic perspective, in an endeavour to allow each participant accordant ontological breadth and flexibility within their respective social and ideological contexts. The researcher’s own social context also adding nuance to the interpretation of data. This interpretation allows for the inclusion of hope, wisdom, creativity, future mindedness, courage, spirituality, responsibility and perseverance. Thematic analysis of these participants’ narratives supports the psychological research which suggests that challenges are associated with midlife. Thematic analysis revealed challenges associated with midlife such as feelings of disillusionment, regret and dissatisfaction; feelings of loneliness, rejection and isolation as well as confusion about the way forward; seeking a meaningful existence and connection as well as achievement. Some participants, however, are in denial of the existence or their experience of midlife and associated challenges, whereas others describe midlife as a transition phase — a crossroads, a wake-up call and time for reassessment Although midlife can be a difficult transitional period, Positive Psychology can help individuals identify and build the necessary resources and coping strategies to prevent a transition turning into a crisis. It was shown that most participants in this research displayed a mindset and attitude open to a Positive Psychology paradigm to accumulate the necessary resources and coping strategies to prevent a midlife transition from becoming a midlife crisis. / Psychology / M.A. (Psychology)

[pt] Pontes com vãos superiores a 2.000 m tornam-se muito sensíveis à ação do vento, particularmente ao drapejamento. Nesta tese é estudado um método para a supressão do drapejamento em pontes de grandes vãos através de um controle aerodinâmico ativo. Apresentam-se técnicas analíticas de projeto para o controle ativo do sistema aero elástico constituído pelo tabuleiro e por duas superfícies de controle. Estas técnicas são baseadas em aproximações racionais das cargas aerodinâmicas não permanentes (ou auto-excitadas) no domínio Laplaciano, no qual as equações de movimento são representadas por equações matriciais de coeficientes constantes. A primeira parte da tese é dedicada à formulação matricial das funções racionais conhecida como Minimum State, assim como a aplicações a dados aerodinâmicos obtidos experimentalmente para vários tipos de seções transversais de pontes. A precisão das aproximações é calculada. Desenhos dos derivativos aerodinâmicos, dados sob forma de tabelas, e das respectivas aproximações, são elaborados para fins de comparação. Em seguida, são apresentadas as equações em espaço de estado descrevendo o comportamento aeroelástico de uma seção transversal de ponte. A partir dos dados geométricos e características dinâmicas de uma determinada ponte, (massa, momento de inertia polar, frequências naturais e fatores de amortecimento), e assumindo a semelhança geométrica entre as seções transversais da ponte em verdadeira grandeza e do modelo em escala do qual os derivativos aerodinâmicos foram extraídos, é possível calcular a velocidade crítica desta ponte, utilizando os programas em linguagem MATLAB apresentados no corpo deste trabalho. Esta parte da tese mostra ser possível construir um catálogo com vários perfis de pontes, caracterizados por derivativos aerodinâmicos variáveis em função de frequências reduzidas adimensionais, e das funções racionais correspondentes. A segunda parte é dedicada à fomulação das equações de movimento em espaço de estado, descrevendo o comportamento aeroelástico do sistema tabuleiro - superfícies de controle. As equações resultantes são ampliadas com novos estados aerodinâmicos responsáveis pela modelagem da influência do fluxo de ar sobre o tabuleiro e sobre as superfícies de controle em movimento. As equações de movimento são função da velocidade média do vento incidente. A dependência da equação de movimento à velocidade do vento motivou a aplicação dos conceitos de realimentação de ganhos, constante e variável, ao problema da supressão do drapejamento, os quais são apresentados separadamente em dois capítulos.O enfoque de ganho variável de saída é formulado em termos de minimização de um índice de desempenho dimensionalmente proporcional à soma do trabalho realizado pelas superfícies de controle e da energia cinética proporcional à velocidade vertical do tabuleiro. Apresenta-se também em detalhe um método sistemático para determinar a matriz de controle de ganhos variável, aplicada ao caso hipotético da ponte de Gibraltar. Neste caso, o conceito de realimentação de ganhos variável mostrou-se muito efetivo em suprimir o drapejamento do tabuleiro da ponte. Diferentes características geométricas e dinâmicas de outras pontes podem ser introduzidas nos programas MATLAB apresentados no Apêndice, para obtenção da velocidade crítica nos casos de tabuleiros isolados, tabuleiros com asas estacionárias e tabuleiros com asas giratórias ativamente controladas, para supressão do drapejamento do tabuleiro. / [en] Long span bridges, with main spans beyond 2.000 m become highly sensitive to wind action, particularly to flutter. An active aerodynamic control method of suppressing flutter of very long span bridges is studied in this thesis. Analytical design techniques for active control of the aeroelastic system consisting of the bridge deck and two control surfaces are presented. These techniques are based on a rational approximation of the unsteady aerodynamic loads in the entire Laplace domain, which yieds matrix equations of motion with constant coefficientes. The first part of this thesis is dedicated to the matrix formulation of the rational functions known as Minimum State and to applications to aerodynamic data obtained experimentally for various types of bridge profiles. The precision of the approximations iscalculated, and plots of the approximation functions compared to the available tabular data are drawn. Next, the state-space equations of motion describing the aeroelastic behaviour of a section of a bridge deck is presented. Given the dynamic data of a bridge structure (mass, rotational mass moment of inertia, natural frequencies, stiffness and damping ratios), and assuming that a geometric similitude exists between the profiles of the full-scale bridge deck and the sectional model from which the frequency dependent aerodynamic data was extracted, it is possible to calculate the critical velocity of that particular bridge. This part of the thesis shows that it is possible to build up a catalog of several profiles, characterized by frequency dependent aerodynamic data and the corresponding rational functions. The second part is dedicated to the formulation of the state-space equations of motion describing the aeroelastic behaviour of the entire system consisting of the bridge deck and control surfaces. The resulting equation includes new aerodynamic states which model the air flow influence on the moving deck. The equation of motion is a function of the mean velocity of the incoming wind. The dependence of the equation of motion on the wind velocity motivated the application of a constant and a variable-gain feedback concept to the problem of flutter suppressing, which are presented separatelly. The output variable-gain approach is formulated in terms of minimizing a performance index dimensionally proportional to the sum of the work done by the rotating control surfaces and the kinetic energy of the heaving velocity. A sistematic method to determine the matrix of variable control gains is shown in detail, as applied to the hypothethical case of Gibraltar bridge. Application of the variablegain feedback concept was found to be very effective in suppressing flutter of the bridge deck. Different geometric and dynamic characteristics can be introduced in the MATLAB programs included in this work, in order to obtain the critical velocities of a bridge deck alone, a bridge deck with stationary wings and a bridge with moving wings activelly controled.

With an increasing proportion of older people in the Australian population and increasing health and longevity, paid work after the age of 65 years may become an option or a necessity in the future. The focus of this research is on Australian women of the baby boom generation, their working futures, and the work-retirement decision. This is explored both from the viewpoint of women and from a social policy perspective. The research draws on Considine�s model of public policy, futures studies, and Beck�s concept of risk society. The research comprises three studies. Using focus group research, Study 1 explored the views of Australian women of the baby boom generation on work after the age of 65 years. Study 2 aimed to explore current thinking on the research topic in Australia and overseas. Computer-mediated communication involving an Internet website and four scenarios for the year 2020 were used for this study. Study 3 consists of the analysis of quantitative data from the Healthy Retirement Project, focusing on attitudes towards retirement, retirement plans, and the preferred and expected age of retirement. The importance of choice and a work � life balance emerged throughout the research. Women in high-status occupations were found to be more likely to be open to the option of continuing paid work beyond age 65 than women in low-status jobs. However, the women were equally likely to embrace future volunteering. The research findings suggest that policies for an ageing female workforce should be based on the values of inclusiveness, fairness, self-determination, and social justice, and address issues of workplace flexibility, equality in the workplace, recognition for unpaid community and caring work, opportunities for life-long learning, complexity and inequities of the superannuation system, and planning for retirement. Further, providing a guaranteed minimum income for all Australians should be explored as a viable alternative to the current social security system.

This thesis examines the development of a superstructure for a slab-on-girder wood-concrete composite highway bridge. Wood-concrete composite bridges have existed since the 1930's. Historically, they have been limited to spans of less than 10 m. Renewed research interest over the past two decades has shown great potential for longer span capabilities. Through composite action and suitable detailing, improvements in strength, stiffness, and durability can be achieved versus conventional wood bridges. The bridge makes use of a slender ultra-high performance fibre-reinforced concrete (UHPFRC) deck made partially-composite in longitudinal bending with glued-laminated wood girders. Longitudinal external unbonded post-tensioning is utilized to increase span capabilities. Prefabrication using double-T modules minimizes the need for cast-in-place concrete on-site. Durability is realized through the highly impermeable deck slab that protects the girders from moisture. Results show that the system can span up to 30 m while achieving span-to-depth ratios equivalent or better than competing slab-on-girder bridges.

This thesis examines the development of a superstructure for a slab-on-girder wood-concrete composite highway bridge. Wood-concrete composite bridges have existed since the 1930's. Historically, they have been limited to spans of less than 10 m. Renewed research interest over the past two decades has shown great potential for longer span capabilities. Through composite action and suitable detailing, improvements in strength, stiffness, and durability can be achieved versus conventional wood bridges. The bridge makes use of a slender ultra-high performance fibre-reinforced concrete (UHPFRC) deck made partially-composite in longitudinal bending with glued-laminated wood girders. Longitudinal external unbonded post-tensioning is utilized to increase span capabilities. Prefabrication using double-T modules minimizes the need for cast-in-place concrete on-site. Durability is realized through the highly impermeable deck slab that protects the girders from moisture. Results show that the system can span up to 30 m while achieving span-to-depth ratios equivalent or better than competing slab-on-girder bridges.

No description available.

No description available.