The utilization of renewable energy resources such as wind and solar energy for electric power supply has received considerable attention in recent years due to adverse environmental impacts and fuel cost escalation associated with conventional generation. At the present time, wind and/or solar energy sources are utilized to generate electric power in many applications. Wind and solar energy will become important sources for power generation in the future because of their environmental, social and economic benefits, together with public support and government incentives. <p>The wind and sunlight are, however, unstable and variable energy sources, and behave far differently than conventional sources. Energy storage systems are, therefore, often required to smooth the fluctuating nature of the energy conversion system especially in small isolated applications. The research work presented in this thesis is focused on the development and application of reliability and economic benefits assessment associated with incorporating wind energy, solar energy and energy storage in power generating systems. A probabilistic approach using sequential Monte Carlo simulation was employed in this research and a number of analyses were conducted with regards to the adequacy and economic assessment of generation systems containing wind energy, solar energy and energy storage. The evaluation models and techniques incorporate risk index distributions and different operating strategies associated with diesel generation in small isolated systems. Deterministic and probabilistic techniques are combined in this thesis using a system well-being approach to provide useful adequacy indices for small isolated systems that include renewable energy and energy storage. The concepts presented and examples illustrated in this thesis will help power system planners and utility managers to assess the reliability and economic benefits of utilizing wind energy conversion systems, solar energy conversion systems and energy storage in electric power systems and provide useful input to the managerial decision process.

The utilization of renewable energy resources such as wind and solar energy for electric power supply has received considerable attention in recent years due to adverse environmental impacts and fuel cost escalation associated with conventional generation. At the present time, wind and/or solar energy sources are utilized to generate electric power in many applications. Wind and solar energy will become important sources for power generation in the future because of their environmental, social and economic benefits, together with public support and government incentives. <p>The wind and sunlight are, however, unstable and variable energy sources, and behave far differently than conventional sources. Energy storage systems are, therefore, often required to smooth the fluctuating nature of the energy conversion system especially in small isolated applications. The research work presented in this thesis is focused on the development and application of reliability and economic benefits assessment associated with incorporating wind energy, solar energy and energy storage in power generating systems. A probabilistic approach using sequential Monte Carlo simulation was employed in this research and a number of analyses were conducted with regards to the adequacy and economic assessment of generation systems containing wind energy, solar energy and energy storage. The evaluation models and techniques incorporate risk index distributions and different operating strategies associated with diesel generation in small isolated systems. Deterministic and probabilistic techniques are combined in this thesis using a system well-being approach to provide useful adequacy indices for small isolated systems that include renewable energy and energy storage. The concepts presented and examples illustrated in this thesis will help power system planners and utility managers to assess the reliability and economic benefits of utilizing wind energy conversion systems, solar energy conversion systems and energy storage in electric power systems and provide useful input to the managerial decision process.

In order to prevent power system blackout, and enhance system reliability, various forms of special protection systems (SPS) and defense plans have been implemented by utilities around the world. One of the main concerns in the design of an SPS is to assure whether the system could fit with the reliability specification requirements. The failure of SPS to detect the defined conditions and carry out the required actions, or to take unnecessary actions, could lead to serious and costly consequences. Thus, a quantitative reliability assessment for SPS is important and necessary. Using a single point value for the parameter to evaluate the reliability of SPS might give incomplete information about the system reliability due to the uncertainty of reliability model and input data. When a review study suggests that some modifications of the existing scheme are necessary, the sensitivity analysis techniques could provide the tools to do this investigation to identify the most significant components that have essential effects on the reliability of the SPS. In this dissertation, by incorporating an interval theory, a risk reduction worth importance concept, and a probabilistic risk-based index, a procedure is proposed to conduct parameter uncertainty analysis, identify critical factors in the reliability model, perform probabilistic risk assessments (PRA) and determine a better option for the refinement of the studied SPS decision process logic module. One of the existing SPSs of Taipower systems is used to illustrate the practicability and appropriation of the proposed design refinement procedure. With the advent of deregulation in the power industry, utilities have experienced a great pressure to fully utilize their current facilities to the maximum level. SPSs are often considered as a cost effective way in achieving this goal. This dissertation also presents a framework for quantitative assessment of the benefits and risks due to SPS implementation. Changes in energy, spinning reserve and customer interruption costs resulting from SPS operations are evaluated and risks of SPS operations and system security are assessed. The proposed methodologies are useful for power system planners and operators to evaluate the value and effectiveness of SPS for the remedy of transmission congestion and reliability problems.

Across the globe, people are everyday audiences of advertising images, which have become integrated in our life worlds. Advertising images are entangled with interesting moral conflicts. This study analyses the decision-processes of advertising self-regulators, who are in the midst of such moral conflicts, with the purpose of showing how and why they decide if advertising images are acceptable or not. Two organizations based in different countries are included in the study; The Advertising Standards Authority (ASA) in the United Kingdom and The Trade Ethical Council against Sexism in Advertising (ERK) in Sweden. The empirical material consists of interviews with 38 people, images and text documents, from the two mentioned self-regulatory bodies, and some (participant) observation. The study focuses on cases of potentially offensive advertisements. The material is primarily analysed using the theory of worlds of worth, developed by Luc Boltanski and Laurent Thévenot. The thesis argues that advertising self-regulation is about ascertaining, and making compromises between, conventions of morality. The study demonstrates the pattern of how the contextual circumstances influence the moral decisions that are made. It is shown that a decisive feature of the decisions is to conceptualize the general public in a justified way. This means that decision-makers picture the public as types of people who hold one or a combination of moral logics, and assume that they use these to interpret and evaluate advertising images. How these publics are defined depends on how the settings of the different advertising images are collectively interpreted by the decision-makers. The thesis argues more generally that to understand people’s values we must look at conflict situations in which current morals surface, such as the ways they appear in relation to advertising images.

The goal of this study was to examine the contributing factors to depression in young adult males with high-functioning autism spectrum disorders (HFASD) and controls. Specifically, this study examined the relationship between recalled relational peer victimization, self-perceived social competence, global self-worth, and symptoms of depression in individuals with HFASD compared to normal controls. Depression is one of the most prevalent comorbid conditions in the HFASD population. Individuals with autism are also subjected to high rates of peer victimization. Given that social abilities are impaired in individuals with autism, it was hypothesized that their experiences with victimization by peers, along with their self-perceived social competence and global self-worth, would help explain levels of depression. It was expected that higher levels of peer victimization, lower levels of self-perceived social competence, and lower levels of global self-worth would explain higher levels of depression. Additionally, it was expected that self-perceived social competence would mediate the effect of peer victimization on depression, global self-worth would mediate the effect of peer victimization on depression, and global self-worth would mediate the effect of self-perceived social competence on depression. Variables were measured with self-report questionnaires. Multiple regression and bootstrapping measures of indirect effects were used to examine the presumed effects. Participants included 40 males, ages 18-26; there were 21 control participants and 19 individuals with HFASDs. Individuals with HFASD had significantly higher levels of depressive symptoms, lower levels of self-perceived social competence, lower levels of global self-worth, and a trend towards higher reports of peer victimization. Multiple regression analyses determined that peer victimization, global self-worth, and self-perceived social competence significantly predicted depressive symptoms in the total sample. Also, peer victimization significantly predicted self-perceived social competence and global self-worth. Additionally, self-perceived social competence significantly predicted global self-worth. Tests of indirect effects indicated that global self-worth mediated the effect of peer victimization on depression, self-perceived competence mediated the effect of peer victimization on depression, and global self-worth mediated the effect of self-perceived competence on depression. As a follow-up, this study also examined select HFASD participants' responses about how they defined bullying, as well as their perceived experiences with victimization. / text

Bound by environmental regulations, many potential developers shy away from brownfield projects because of the high cleanup costs associated with remediating contaminated groundwater. These circumstances create tension between economic and environmental interests, and sometimes between equity interests as well. In Texas, one piece of legislation called the Municipal Setting Designation (2003) aims to reduce liability associated with the redevelopment of contaminated properties. It uses an institutional control to eliminate the ingestion exposure pathway for contaminated groundwater when property owners develop a response action to the contamination. By eliminating risk associated with human consumption, the MSD is designed to reduce costs and accelerate the process for environmental remediation. Some parties praise Texas for taking such steps to quicken the redevelopment of contaminated properties, while others have reservations. This report will explore Texas’ MSD program using case study analysis and GIS analysis. It will examine risks associated with proximity to other water resources, and the principle of “polluter pays.” What are the effects on the environment? What are the implications of extending MSD practices to cover large metropolitan areas over the long-term? Answers to these questions may identify successes and shortfalls that have emerged over the last eight years as municipalities and professionals have put this law into practice. As we continue to learn from experience, these insights may aid in refining Texas’ environmental stewardship policies for future generations. / text

The concept of self-compassion has been gathering interest for researchers in recent years, as it appears to offer an array of benefits to wellbeing. This study investigated the potential role of self-compassion as a protective factor against disordered eating behaviors. It also examined the mediating roles of three potential variables: body dissatisfaction, perfectionism and contingent self-worth. Given modern representations of the female ideal, failure to achieve or adequately conform to such standards often poses psychological challenges for women and girls. Self-compassion encompasses kind, mindful self-treatment and may be an ideal protective factor against disordered eating. It has also been linked with lower body dissatisfaction, maladaptive perfectionism, and contingent self-worth. The present study found that dissatisfaction with one’s body, as well as a tendency to judge one’s personal worth based on appearance fully mediated the relationship between self-compassion and both restrained and emotional disordered eating respectively. Therefore, a self-compassionate attitude may serve as a protective factor against engaging in disordered eating vis-à-vis strengthening young women’s abilities to look at their bodies in a more compassionate and unconditionally accepting way. / text

Many scholars are interested in the stage of adolescence. This period is marked by immense change in individual’s psychosocial, cognitive and physical development. Intensive psychophysical development suggests certain personality direction, changes in activeness and autonomy, which put adolescents into the contradictory situations, such as growing aspirations differing from reality, difficulties related with identity formation, inadequate self – value. Growing conflicts of adolescents’ and adults’ values, sense of identity, changing status in society make an individual perceive not only surrounding environment, but oneself as a part of it as well. The development of self – perception is the most intense at the stage of adolescence and it includes perception of self – concept, self – worth. Self – worth is one of the components of self – perception, reflecting individual’s view at oneself and depending upon one’s abilities, perceived competence. Adolescent, who is able to perceive oneself as being capable in many important areas, is tend to value oneself and be successful in socializing. Socialization program for children and youth (2004) states, that it is important to develop occupation of youths and improve its quality. Sport is one of the most acceptable activities for adolescents. Involvement in sport activity positively influences adolescents’ self – worth, withdraw them from various addictions, helps to integrate into society. The aim of the study was to evaluate the... [to full text]

The union organization rate has continuously diminished since the mid 90's. The aim of this essay is to investigate non-members approach to the union. Central questions are what personal experiences the respondents have of the union and how they view the union as a phenomenon. According to previous research the main cause of the great decline in membership to LO are the increased membership fees to the union and the unemployment insurance funds (UIF) in 2007. The increased fee led to a greater accumulated cost for those who were both union- and UIF -members, which had a negative effect on the membership numbers for the union. This study is based on qualitative interviews with three persons working within the agreement area of IF Metall and three persons within the agreement area of Kommunal. To interpret our empirical material we use Max Weber´s theory of social action. The study shows that the membership fee is an important factor for the decision to stay out of the union but even more important is the lack of personal benefits that union membership is associated with. Generally the interviewees think that the union, to increase the personal benefits, should be more present in the working place and that they should work more intensively to improve the work environment, workplace safety and job security. The union is not considered to offer personal safety to the extent they ought to. The protection that is requested stretch from qualified support in labour law negotiations to a secure and steady income in case of unemployment or sickness. / Den fackliga organisationsgraden har kontinuerligt minskat sedan mitten av 1990-talet. Uppsatsens syfte är att undersöka fackligt oorganiserades förhållningssätt till facket. Centrala frågor är vilka personliga erfarenheter respondenterna har av facket samt vilken syn de har på facket som fenomen. Enligt tidigare forskning är de höjda egenavgifterna till a-kassorna och de stigande medlemsavgifterna till fackförbunden kring 2007 den främsta orsaken till medlemsraset inom LO. De ökade avgifterna ledde till en ökad ackumulerad kostnad för de som både var fack- och a-kassemedlemmar, vilket påverkade medlemsantalet negativt för facket. Denna studie baseras på kvalitativa intervjuer med tre fackligt oorganiserade personer inom IF Metalls avtalsområde och tre inom Kommunals. I tolkningen av det empiriska materialet använder vi oss av Max Webers teori om sociala handlingstyper. Vår studie visar att medlemskostnaden spelar en viktig roll i beslutet att avstå medlemskap men att den upplevda personliga nyttan med medlemskap är ännu mer avgörande. Intervjupersonerna anser generellt att facket, för att öka den personliga nyttan, skulle behöva vara mer närvarande ute på arbetsplatserna och ta mer kamp för en förbättrad fysisk och psykosocial arbetsmiljö och anställningstrygghet. Facket anses inte heller i tillräcklig grad ge det personliga skydd som det borde till medlemmarna. Skyddet de efterfrågar kan handla om allt från ett kvalificerat stöd i arbetsrättsliga förhandlingar till en tryggad inkomst vid arbetslöshet och sjukdom.

This study deals with pastoral guidance for persons who, due to unresolved trauma, are often emotionally and spiritually wounded and consequently exhibit internalised lies. Some important questions relating to this theme put on the table here include the following: * What is the origin of an internalised lie? * What effect do these lies have on the life of the wounded person? * What is truth and how can it be discerned? * How can the wounded person be guided and protected in the renewal of his/her thinking? The basic–theoretical research shows that being emotionally wounded and the accompanying internalisation of lies usually take place during childhood. This is the period when the child does not have the verbal, emotional or spiritual competence to interpret correctly or assimilate trauma and the accompanying injury. Further it transpires that the emotionally wounded person is engaged in a daily struggle with Satan and that the struggle mainly lodges in his heart and thoughts, and is based on lies. From this section it is also clear that only truth can overcome the onslaught of Satan's misrepresentation and that the truth can only be reached in a relationship with Jesus Christ. The wounded person has the choice of whom to follow, Satan or Jesus. It is therefore essential for such a person to take up the daily responsibility for the renewal and control of his mind. For this the Lord provides special weapons with which the struggle for renewal of one?s thoughts can successfully be approached. Meta–theoretical research has shown that optimal brain functioning is of cardinal importance in the renewal of the mind since behaviour, personality, cognitive ability, emotions as well as thoughts all originate in the brain. The brain is the most complex organ in the human body and the way it functions affects a person?s choices, vision and personality as well as success or failure in life. In the case of a person manifesting broken relationships or compulsive behaviour patterns, it must first be ascertained whether the brain functions correctly before labelling the person with some or other abnormality. The study shows that the brain does have the ability to recover with the help of diet and exercise as well as attitude of mind. The empirical study involved six collaborators who had been exposed to inter–generative trauma and consequently had exhibited internalised lies. Information relevant to trauma, medical background, head injuries and the family of origin was collected and after being processed, was presented in a genogram. The structure and style of every family as well as the role of the particular respondent in every family was represented schematically and explained to the respondent. From the practical–theoretical section it clearly emerged that emotional and spiritual healing can only take place by means of God's Word and his truth. In this respect it is essential that the injured person should take daily responsibility regarding the renewal of his mind. After all, transformation is a process demanding patience and practice as well as faith in Christ and it is clear that there are no shortcuts to healing. To reach the necessary goals in this process an integrated holistic approach is necessary where the different neighbouring sciences are involved. / Thesis (Ph.D. (Pastoral))--North-West University, Potchefstroom Campus, 2011.