“The family is the building block of society. It is a nursery, a school, a hospital, a leisure centre, a place of refuge and rest. It encompasses the whole of society. It fashions our beliefs; it is the preparation for the rest of our life,” Margaret Thatcher (1988). We are all well aware of the important role of family in people’s lives, we know it can affect you, empower you, or break you. Many studies and research has sought to define the role and influence of family in every which way, but truthfully, we can never know enough and we will never know everything. As human beings, we constantly strive for more – more knowledge, more understanding, and more insight. But the family, in essence, is a mystery; a far too complex and unique system that cannot be broken down into simple numbers or words. It is this that inspired me to do this study – although we can never know everything, we can always know more. This study therefore aimed to investigate the psychosocial well-being of a group of families and from the findings obtained, develop a conceptual framework and a model for psychosocial well-being of families from diverse cultures in a South African context. The research method consisted of two stages namely, stage one: a multi-method approach using quantitative and qualitative research for theory generation, and stage two: formulation of a conceptual framework and visual model. The first phase consisted of a quantitative research design with a sample size of 772 participants. The aim of the first phase was to determine the prevalence of psychosocial well-being in families and to identify families who report high, moderate and low levels of psychosocial well-being, using validated psychological instruments. The second aim of the quantitative phase was to propose a measurement model to assess family psychosocial well-being in a South African context. The second phase consisted of a qualitative, explorative research design used to understand and describe aspects that contribute to the psychosocial well-being of families from diverse cultures in a South African context, by analysing the storied (narrative) experiences (N = 23), drawings (N = 14) and family interviews (N = 36) of identified families who reported psychosocial well-being or less thereof, in the first phase of the study (Creswell, 2003). These findings were then utilized to develop a conceptual framework followed and a model for the psychosocial well-being of families in a South African context. The findings from the first, quantitative phase show a rather small group of participants who report high levels of family psychosocial well-being, while the majority falls within the low and moderate ranges, and approximately 64% of the participants are not experiencing optimal psychosocial well-being. The results support a two-factor model of family psychosocial well-being consisting of family functioning and family feelings. Family functioning included family relational patterns, family functioning style and family hardiness while the second factor, family feelings, included family satisfaction and attachment. The findings from the qualitative phase suggest that communication, mutual support, togetherness as a family and spirituality are the most prominent contributing factors, whilst financial difficulties and interpersonal conflicts or arguments are the most prominent hindering factors with regard to family psychosocial well-being in this group of participants. These findings were utilized to develop a conceptual framework and a model for the psychosocial well-being of families from diverse cultures in a South African context that can be used in future research and in the development of programmes to enhance the psychosocial well-being of South African families. / PhD, Psychology, North-West University, Vaal Triangle Campus, 2012

Faculty of Humanities School of Human and Community Development 0004529r Chazens2global.co.za / This study aimed to investigate the nature of the relationship between organisational stress, in terms of individual’s emotional reactions to their jobs, and physical and psychological well-being. It then aimed to expand upon previous research in this area, by considering the effects of potential mediators such as job and family involvement on this relationship. In addition to this it aimed to explore the possible differences in the emotions at work, well-being and job and family involvement as experienced by individuals of different demographic groups. Questionnaires containing a biographical information sheet and four well-established measures, including the Job-Related Affective Well-Being Scale, the Well- Being Scale, as well as the Job Involvement Questionnaire and Family Involvement Scale, were distributed to the male and female employees at a large organisation in Johannesburg. This sampling method yielded a final sample of 249 respondents, consisting of 120 men and 129 women. The results of this study illustrated significant differences in the physical well-being of the men and women in the sample, with men reporting experiencing greater levels of positive physical well-being than their female counterparts. A significant difference was also demonstrated in the emotions at work experienced by the Black and White respondents of the study, with the Black individuals reporting more positive emotions at work than their White counterparts. In addition, the findings of this study indicated that there was a positive relationship between the constructs of emotions at work and physical and psychological well-being and that emotions at work mediated the relationships between job and family involvement and well-being.

Hydrocarbon use has been increasing and will continue to increase for the foreseeable future in even the most pessimistic energy scenarios. Over the past few decades, natural gas has become the major player and revenue source for many countries and multinationals. Its presence and power share will continue to grow in the world energy mix. Much of the current gas reserves are found in gas condensate reservoirs. When these reservoirs are allowed to deplete, the pressure drops below the dew point pressure and a liquid condensate will begin to form in the wellbore or near wellbore formation, possibly affecting production. A field optimization includes determining the number of wells, type (vertical, horizontal, multilateral, etc.), trajectory and location of wells. Optimum well placement has been studied extensively for oil reservoirs. However, well placement in gas condensate reservoirs has received little attention when compared to oil. In most cases involving a homogeneous gas reservoir, the optimum well location could be determined as the center of the reservoir, but when considering the complexity of a heterogeneous reservoir with initial compositional variation, the well placement dilemma does not produce such a simple result. In this research, a horizontal well placement problem is optimized by using a modified Genetic Algorithm. The algorithm presented has been modified specifically for gas condensate reservoirs. Unlike oil reservoirs, the cumulative production in gas reservoirs does not vary significantly (although the variation is not economically negligible) and there are possibly more local optimums. Therefore the possibility of finding better production scenarios in subsequent optimization steps is not much higher than the worse case scenarios, which delays finding the best production plan. The second modification is developed in order to find optimum well location in a reservoir with geological uncertainties. In this modification, for the first time, the probability of success of optimum production is defined by the user. These modifications magnify the small variations and produce a faster convergence while also giving the user the option to input the probability of success when compared to a Standard Genetic Algorithm.

The limits of directional drilling continue to be pushed back as horizontal or near-horizontal reservoir sections are being drilled, cased, cemented and completed to tap reserves at extreme distances. Continuous development of new technology and adopting a technical-limit approach to performance delivery are key elements for the success and further development of extended-reach drilling projects. For this study a two-phase well control simulator was used to evaluate different kick scenarios that are likely to occur in extended-reach wells. An extensive simulation study covering a vide range of variables has been performed. Based on this investigation together with a literature review, well-control procedures have been developed for extended-reach wells. The most important procedures are as follows: Perform a "hard" shut-in when a kick is detected and confirmed. Record the pressures and pit gain, and start to circulate immediately using the Driller's Method. Start circulating with a high kill rate to remove the gas from the horizontal section. Slow down the kill circulation rate to 1/2 to 1/3 of normal drilling rate when the choke pressure starts to increase rapidly. The simulator has been used to validate the procedures.

The acknowledgement of the existence of stress changes in the reservoir due to production from a propped-open fracture has resulted in the development of a new concept: oriented or altered-stress refracturing. By initiating a secondary fracture perpendicular to the initial fracture, refracturing makes it possible to access higher pressurized regions of the reservoir, thus improving the productivity of the well. The redistribution of stresses around a fractured vertical well has two sources: (a) opening of propped fracture (mechanical effects) and (b) production or injection of fluids in the reservoir (poroelastic effects). The coupling of both phenomena is numerically modeled to quantify the extent and timing of stress reorientation around fractured production wells. Guidelines and type-curves are established that allow an operator to choose the timing of the refracture operation in the life of the well, and evaluate the potential increase in well production after refracturing. The selection of candidate wells for refracturing is often very difficult based on the information available at the surface. We propose a systematic methodology, based on dimensionless groups, that allows a field engineer to evaluate a well's potential for refracturing from an analysis of field production data and other reservoir data commonly available. This analysis confirms the crucial role played by stress reorientation in the success of refracturing operations. Another topic of interest is the multi-stage fracturing of horizontal wells. The opening of a propped transverse fracture causes a reorientation of stresses in its neighborhood, which in turn affects the direction of propagation of subsequent fractures. This phenomenon, often referred to as stress shadowing, can negatively impact the efficiency of each fracturing stage. By calculating the trajectory of multiple transverse fractures, we offer some insight on the completion designs that will (a) minimize fracture spacing without compromising the efficiency of each fracturing stage and (b) effectively stimulate natural fractures in the vicinity of the created fracture. In addition, a novel detection method of mechanical interference between multiple transverse fractures is established, based on net fracturing pressure data measured in the field, to calculate the optimum fracture spacing for a specific well. / text

“The family is the building block of society. It is a nursery, a school, a hospital, a leisure centre, a place of refuge and rest. It encompasses the whole of society. It fashions our beliefs; it is the preparation for the rest of our life,” Margaret Thatcher (1988). We are all well aware of the important role of family in people’s lives, we know it can affect you, empower you, or break you. Many studies and research has sought to define the role and influence of family in every which way, but truthfully, we can never know enough and we will never know everything. As human beings, we constantly strive for more – more knowledge, more understanding, and more insight. But the family, in essence, is a mystery; a far too complex and unique system that cannot be broken down into simple numbers or words. It is this that inspired me to do this study – although we can never know everything, we can always know more. This study therefore aimed to investigate the psychosocial well-being of a group of families and from the findings obtained, develop a conceptual framework and a model for psychosocial well-being of families from diverse cultures in a South African context. The research method consisted of two stages namely, stage one: a multi-method approach using quantitative and qualitative research for theory generation, and stage two: formulation of a conceptual framework and visual model. The first phase consisted of a quantitative research design with a sample size of 772 participants. The aim of the first phase was to determine the prevalence of psychosocial well-being in families and to identify families who report high, moderate and low levels of psychosocial well-being, using validated psychological instruments. The second aim of the quantitative phase was to propose a measurement model to assess family psychosocial well-being in a South African context. The second phase consisted of a qualitative, explorative research design used to understand and describe aspects that contribute to the psychosocial well-being of families from diverse cultures in a South African context, by analysing the storied (narrative) experiences (N = 23), drawings (N = 14) and family interviews (N = 36) of identified families who reported psychosocial well-being or less thereof, in the first phase of the study (Creswell, 2003). These findings were then utilized to develop a conceptual framework followed and a model for the psychosocial well-being of families in a South African context. The findings from the first, quantitative phase show a rather small group of participants who report high levels of family psychosocial well-being, while the majority falls within the low and moderate ranges, and approximately 64% of the participants are not experiencing optimal psychosocial well-being. The results support a two-factor model of family psychosocial well-being consisting of family functioning and family feelings. Family functioning included family relational patterns, family functioning style and family hardiness while the second factor, family feelings, included family satisfaction and attachment. The findings from the qualitative phase suggest that communication, mutual support, togetherness as a family and spirituality are the most prominent contributing factors, whilst financial difficulties and interpersonal conflicts or arguments are the most prominent hindering factors with regard to family psychosocial well-being in this group of participants. These findings were utilized to develop a conceptual framework and a model for the psychosocial well-being of families from diverse cultures in a South African context that can be used in future research and in the development of programmes to enhance the psychosocial well-being of South African families. / PhD, Psychology, North-West University, Vaal Triangle Campus, 2012

Thesis (Ph.D.)--University of Tulsa, 1988. / Includes bibliographical references.

Thesis (M.S.)--West Virginia University, 1999. / Title from document title page. Document formatted into pages; contains x, 76 p. : ill. (some col.), map (some col.). Includes abstract. Includes bibliographical references (p. 54-55).

Thesis (Ph. D.)--Ohio State University, 2009. / Title from first page of PDF file. Includes vita. Includes bibliographical references (p. 154-172).

The aim of the study was to examine the determinants of well-being in Malaysian students at home and overseas. Prior to the main study, interviews were conducted with seven PhD students of Malaysia studying in Plymouth, to explore their needs and values, and their adaptation experiences in terms of missing and enjoyment experiences abroad. Based on the interview findings and literature reviews, a questionnaire was developed and named as the Adaptation to Life Index, which consisted of two scales - ‘missing experience’ and ‘enjoyment experience’. A longitudinal survey was carried out using Malaysian students in the UK, Australia, New Zealand, the US, Ireland, and Canada as well as students who remained in Malaysia. At Time 1, data were collected from 1118 students who were enrolling at various overseas preparatory studying programmes and 972 first year students in one of the public university in Malaysia who were continuing their education in Malaysia. Measurements used were the Big Five Personality Inventory (John, Donahue, & Kentle, 1991), Schwartz’s Short Value Scale (SSVS) (Lindeman & Verkasalo, 2005; Schwartz, 1992), Positive and Negative Affect Scales (PANAS) (Watson, et al, 1988), Satisfaction with Life Scale (SWLS) (Diener, et al., 1985), perceived stress scale (based on the results of Malaysian Certificate of Education and perceived English language fluency), and a section on socio-demographic background. At time 2, 30 % of the participants (N= 628) were retained. Life satisfaction for home students remained constant over time. However, life satisfaction for overseas students started much lower at Time 1 but increased at Time 2. Results showed that life satisfaction at time 1 strongly predicted life satisfaction at Time 2, but neither personality nor values were predicted life satisfaction at Time 2. Personality and values at Time 1 predicted ‘missing experience at Time 2 and in the overseas students, being fluent in English predicted less ‘missing experience’. There were few predictors of Time 1 for ‘enjoyment’ at Time 2, but fluency with English predicted better enjoyment.