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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1091

Perceptions of Academic and Social Self-Efficacy among Adolescents Diagnosed with Cancer and their Relations with Dispositional Optimism, Perceived Vulnerability, and Treatment Modality

Foster, Rebecca Hope 01 January 2006 (has links)
For adolescents with cancer, a population notably neglected in the literature, maintaining and strengthening academic and social self-efficacy is especially salient in terms of promoting positive adaptation on key developmental indices. Based on prior research citing their potential roles among adolescents adapting to cancer, treatment modality, dispositional optimism, and perceived vulnerability were chosen as variables likely related to social and academic self-efficacy. Forty-two adolescents diagnosed with cancer and at least six months post-treatment completed questionnaire packets. Analyses indicated that although treatment modality did not relate to academic or social self-efficacy, prognosis should be considered as a covariate. Hierarchical regression analyses indicated that dispositional optimism and perceived vulnerability predicted the change in academic (ΔR2=.25, F(2,27)=6.88, p=.004) and social self-efficacy (ΔR2=.21, F(2, 27)=4.97, p=.015) beyond the influence of prognosis. Independently, there was a main effect of perceived vulnerability on academic self-efficacy (Bacademic self-efficacy= -.64, p=.02) with perceived vulnerability accounting for 12% of the unique variance (sr2=.12,p=.02). A main effect of dispositional optimism on social self-efficacy (Bsocial self-efficacy=.65,p=.03) was also observed with dispositional optimism accounting for 10% of the unique variance (sr2=.l0, p=.03). These results lend themselves to future intervention studies promoting academic and social skills through the integration of positive dispositional traits, like optimism, and enhancing realistic perceptions of vulnerability.
1092

ROBUST PROTECTIVE FACTORS THAT HELP YOUTHS WITH A PARENT EXPERIENCING DEPRESSION ACHIEVE POSITIVE ADJUSTMENT

Chen, Hsing-Jung 18 November 2009 (has links)
Based on a resilience framework, the purpose of this study was to address knowledge gaps about minority youths who lived in rural and poor areas, had a primary caregiver with a diagnosis of depression, and faced multiple psychosocial stressors. Three research objectives included: 1) To explore the association between ecological protective factors and four developmental outcomes-emotional adjustment, behavioral adjustment, school performance, and educational aspiration; 2) To identify the robust protective factors; and 3) To explore the interactive relationships between risk and robust protective factors. Families (N=126) where the primary caregiver had a diagnosis of major depression and had a child aged 10-14 years old were selected for this study. This study used a longitudinal data set: Family and Community Health Study (FACHS). Six theoretical protective factors in individual-family-community levels and four youths’ developmental outcomes were selected from the FACHS: emotional adjustment; behavioral adjustment; school performance; and educational aspiration. Separate hierarchical regression analyses were conducted for each of the youths’ developmental outcomes. Before conducting the regression analyses, factor analysis, power analysis, data screening and regression assumptions assessment were conducted. For the research objective 1 and 2, this study’s findings suggested that overall, with the exception of parental monitoring, these theoretical protective factors only operated in specific developmental domains. Only parental monitoring was identified as a robust protective factor for this population. The regression model (R2adj) explained 11.5 % of the variance of depression, 29.8 % of conduct behavior, 15.2 % of school performance, and 18.7 % of educational aspiration. Youths’ optimism (ß=-.215) significantly contributed to the Emotional Adjustment Model. Youths’ self control (ß=-.210), prosocial friendship (ß=-.187), and parental monitoring (ß=-.250) significantly contributed to the Behavioral Adjustment Model. Parental monitoring (ß=.189) significantly contributed to the School Performance Model. Parental monitoring (ß=.278) and teacher’s support (ß=.292) significantly contributed to the Educational Aspiration Model. For objective 3, this study suggested that the effect of parental monitoring did not vary by the risk levels. In other words, regardless of the change of risk effect, parental monitoring consistently functioned as a protective effect on youth’s educational aspiration. Based on the findings from this study, six suggestions for future research, four recommendations for intervention and mental health-related services systems, and one suggestion for social work education were provided.
1093

Resilience and adaptive capacity of mediterranean farming systems to climate change : application to the low valley of Medjerda-Tunisia / Résilience et capacité d'adaptation des systèmes d'exploitation agricoles méditerranéens aux changements climatiques : application à la basse vallée de Medjerda-Tunisie

Souissi, Imen 06 January 2014 (has links)
Le changement climatique menacera probablement la durabilité de la plupart des systèmes agricoles en région méditerranéenne et notamment au sud de la méditerranée. Le comportement des systèmes agricoles sera différent selon les régions sur la base de contextes biophysique, socio-économique, institutionnel et politique. L'objectif de cette thèse est d'analyser la résilience et la capacité d'adaptation au changement climatique des exploitations agricoles en prenant comme référence celles de la Basse Vallée de Medjerda (Nord de la Tunisie). Pour répondre à cet objectif, trois questions principales sont successivement abordées. Le premier chapitre décrit, en se basant sur une large revue de littérature, les effets agri environnementaux du changement climatique en région méditerranéenne et particulièrement en Tunisie. Le deuxième chapitre analyse les effets potentiels du changement climatique sur la résilience des exploitations agricoles de la Basse Vallée de Medjerda (BVM). Pour faire bref, la résilience d'une exploitation est sa capacité à assurer par elle-même sa viabilité économique et par conséquent sa pérennité. Pour ce faire, un cadre conceptuel a été construit. Ce cadre est basé sur trois étapes impliquant la définition de l'échelle spatiale, les forces exogènes, les indicateurs et les seuils de persistance. A cet effet, une chaîne de modèles biophysique-socioéconomique au niveau régional a été utilisée pour simuler l'effet du changement climatique d'une part sur les rendements des cultures et sur la salinité du sol à l'échelle de la parcelle, et d'autre part sur la résilience et la capacité d'adaptation des exploitations agricoles. Cette approche quantitative permet la simulation de stratégie d'adaptation agricole système en calculant trois indicateurs : le stock de terres, le stock de main-d'œuvre et le flux des revenus, en réponse au changement climatique. Le troisième chapitre évalue les stratégies d'adaptation possibles permettant de faire face aux effets du changement climatique. Ces stratégies ont été identifiées dans le cadre d'une approche participative, en concertation avec les agriculteurs et les experts locaux au niveau de la BVM et simulées en utilisant la chaîne de modèles. Les résultats de cette étude montrent une hétérogénéité des comportements des exploitations agricoles en fonction de la diversité et du degré d‘intensification des activités de production agricoles (végétale et animale). Les exploitations agricoles les plus diversifiées et les moins intensifiées avec une activité animale importante semblent être plus résilientes au changement climatique que les exploitations spécialisées ayant un système de production intensif. Nous constatons que les stratégies d'adaptation basées sur l'augmentation des doses d'irrigation pour satisfaire les besoins croissants en eau des cultures, l'irrigation de complément des céréales, et l'amélioration de l'efficience des systèmes d'irrigation améliorent la résilience des exploitations agricoles de la Basse Vallée de Medjerda. Ces stratégies ont un effet plus important sur la profitabilité des exploitations agricoles si elles sont accompagnées par une tarification d'eau binôme. Les résultats de cette étude montrent que les systèmes agricoles peuvent s'adapter au changement climatique de différentes façons. La méthodologie utilisée peut être adaptée à d'autres régions de la Méditerranée et permettra d'aider les experts et les décideurs politiques à proposer et tester des stratégies d'adaptation au changement climatique dans ces régions. / Climate change would impact sustainability of most agricultural systems in the Mediterranean region and particularly in the south of the Mediterranean. It is expected that agricultural systems react differently depending on biophysical, socioeconomic and political contexts of each agriculture. The objective of this thesis is to analyze the resilience and adaptive capacity to climate change of the farming systems of the Low Valley of Medjerda (Northern Tunisia). To meet this objective, three main steps are developed. The first chapter describes, based on a literature review, the agri-environmental effects of climate change in the Mediterranean region and particularly in Tunisia. The second chapter analyzes the potential impact of climate change on the resilience of the farming systems in the Low Valley of Medjerda (LVM). To do this, an operational Framework was built. The third chapter assesses the possible adaptive strategies to cope with the effects of climate change. These strategies have been identified through a participatory approach, in consultation with farmers and local experts in the LVM watershed. For this purpose, a chain of regional biophysical-socio-economic models was used to simulate the effect of climate change, on crop yields and soil salinity at field scale, and on the resilience and adaptability of farming systems. The results of this study show heterogeneous behaviors of farming systems depending on the diversity and the degree of intensification of agricultural production (crop and livestock). More diversified and less intensified farming systems with a large animal activity seem to be more resilient than specialized farms with intensive production system. In addition, as expected, we find that adaptation strategies based on the increasing of irrigation doses to meet the increased crop water requirements (SIrr.am), supplemental irrigation of cereal (SIrr.c) and the improvement of the efficiency of irrigation systems (SIrr.sys)improve the resilience of farming systems in the LVM watershed. These strategies have a greater effect on the profitability of farming systems if they are accompanied by a binominal water tariff. The methodology used in this research can be adapted for other Mediterranean regions and assist experts and policy makers to propose and test strategies for adapting to climate change in these regions.
1094

Positive mental training : efficacy, experience and underlying mechanisms of a health promotion intervention for resilience and wellbeing in the workplace

Ross, Sheila January 2015 (has links)
There is a growing interest in brief, low-cost workplace health promotion interventions for wellbeing, which target increasing resilience, mindfulness and positive appraisal. One such health promotion intervention is Positive Mental Training. Three linked studies set out to investigate the efficacy of Positive Mental Training in the workplace. Study 1 used a double blind, randomised control trial design, with healthy volunteer employees randomised to intervention or control conditions. Validated questionnaires measured wellbeing, resilience, mindfulness, burnout and emotional distress at 4 time intervals, over a 6 month period. Multi-level linear modelling showed significant effects of the intervention on wellbeing and depression. ANCOVA analysis revealed these benefits were not sustained at follow up (26 weeks). Study 2 expanded on study 1, with qualitative interviews of purposefully selected participants of study 1. A grounded theory approach was used to explore individual motivations, benefits and limitations of the programme. Study 3 adopted a component research design to investigate one possible underlying aspect of this multi-component health promotion intervention (positive appraisal suggestion) in a student population and examined whether relaxation increased this effect. Positive appraisal suggestions given with or without relaxation were both able to significantly increase levels of positive affect and self-esteem compared to a control. Positive cognitive bias was found to increase in both the active conditions and the control suggesting differential cognitive and emotional processes, in that an increase in positive CB was not associated with an increase in mood. Overall these studies indicated evidence for the efficacy of Positive Mental Training in workplace health promotion, explored experience of participants undertaking the study and investigated the underlying mechanisms of an active component of Positive Mental Training. Theoretical and clinical implications are discussed.
1095

Psychosocial Health and Wellbeing in an Environment of Risk: A Mixed Methods Exploration of Urban Congolese Refugee Resilience in Kenya

Tippens, Julie A., Tippens, Julie A. January 2016 (has links)
Background: The current global refugee crisis requires attention from the public health community to improve the health and wellbeing of forcibly displaced groups. Eighty-six percent of refugees are hosted in developing countries, while 58% migrate to urban centers in search of opportunities. Although there are benefits to urban migration, refugees residing in Nairobi, Kenya are vulnerable to police extortion, arrests, deportations, and social exclusion as a result of anti-refugee policies. Despite threats to psychosocial wellbeing, many refugees successfully cope with acute and cumulative stressors to exhibit positive mental health outcomes in the context of adversity. This dissertation explores the ways urban Congolese refugees in Nairobi negotiate and navigate personal, social, and environmental resources to mitigate stress and promote psychosocial wellbeing. Research Aims: The dissertation included the following three aims: (1) document stressors experienced by urban Congolese refugees in Nairobi; (2) describe the range of coping supports available to Congolese refugees; identify how individuals, families, and groups navigate and negotiate these resources; and (3) explore relationships that exist among stressors, supportive resources, and reported mental health status of urban Congolese refugees. Methods: Mixed-methods exploratory research took place over a 12-month period in Nairobi. Preliminary research was conducted between May and August 2012, and dissertation fieldwork occurred between January and August 2014. Qualitative research included ethnographic participant observation, semi-structured in-depth interviews, and small group discussions with Congolese refugees (n=70). Additional interviews were conducted in Kenya with academics (n=3), intergovernmental employees (n=4), representatives from government agencies (n=2), and refugee service providers (n=18). Quantitative research was comprised of two surveys administered to Congolese refugees (N=244) in 150 households. The Self-Reporting Questionnaire (SRQ-20) assessed mental health functioning, and a survey developed in-field inventoried perceived stressors and supports. Results: The results by aim were: (1) stressors fell within three primary domains: inadequate material resources, political and personal insecurity, and emotional distress; (2) Congolese refugees utilized three salient coping strategies, comprised of reliance on religious communities and faith in God, participation in borrowing networks, and managing memories; and (3) isolation was associated with poor mental health functioning, while perceived support from religious communities enhanced mental health outcomes. Recommendations: Organizations should bolster community-based programs and strengthen partnerships with religious communities to improve the psychosocial wellbeing of urban Congolese refugees. Conclusions: Shifting the paradigm with refugee populations from a deficits-centric to resilience-focused framework recognizes the inherent strengths of individuals, families and communities with refugee status, and has the potential to mold future research and praxis that aims to enhance the wellbeing of displaced populations.
1096

Grazing and drought in tallgrass prairie: the role of belowground bud banks in vegetation dynamics

VanderWeide, Benjamin Lee January 1900 (has links)
Doctor of Philosophy / Department of Biology / David C. Hartnett / Grazing and drought are instrumental in the development and maintenance of perennial grasslands. In this research I tested the belowground bud bank contribution to tallgrass prairie resistance and resilience when perturbed by grazing and drought. First, I tested the bud bank role in vegetation response to and recovery from severe drought (Chapter 2). I compared above- and belowground responses of experimentally droughted plots to ambient controls and irrigated plots during two years of severe drought and two years of recovery. I found that although aboveground net primary productivity declined 30-60% during drought, bud bank density and demography were insensitive to drought. These results suggest that grassland resistance and resilience when perturbed by drought may be mediated by stability of belowground bud banks. Second, I investigated vegetation and soil nutrient legacies following release from long-term grazing (Chapter 3). I documented a relatively rapid shift in aboveground vegetation within four years of grazer exclusion, with productivity, stem density, and diversity becoming relatively more similar to ungrazed than grazed prairie. The density and composition of the belowground bud bank and soil seed bank shifted more slowly, remaining more similar to grazed than ungrazed prairie. Responses of soil nutrients to removal of grazers varied, and in some cases was affected by recent fire history. These results demonstrate the contribution of belowground propagules to the maintenance of a diverse plant community both during grazing and after grazers are removed. Finally, I examined short-term vegetation responses to both drought and grazing (Chapter 4). Despite extreme drought and simulated grazing that reduced productivity and increased mortality of individual stems, the dominant C4 grasses maintained a stable bud bank. Aboveground net primary productivity and bud bank density of sedges and forbs, however, were reduced by both drought and grazing. This differential response of species to extreme drought and grazing led to shifts in community composition and species diversity over one growing season. Across drought and grazing treatments, live rhizome biomass was highly correlated with bud bank density and may be a useful, more easily measured index of bud bank density.
1097

“I am not a victim, I am a survivor”: healthy sexuality as a context for resilience in women survivors of childhood sexual abuse

Newsom, Kimmery C. January 1900 (has links)
Doctor of Philosophy / Department of Family Studies and Human Services / Karen S. Myers-Bowman / The current study was conducted with women survivors of childhood sexual abuse (CSA) about their experiences of resilience in the context of interpersonal and sexually intimate relationships. Six women between the ages of 18 and 55, who self-identified as resilient on the pre-screening form, were invited to participate in the study. Qualitative methods with a phenomenological lens were employed. One-on-one interviews were conducted with participants. The results revealed the perspective and focus the survivors have regarding resilience and sexuality in interpersonal relationships. The participants had very similar thought patterns, which supports the idea that women survivors who self-identify as resilient have very similar experiences when it comes to resilience, relationship functioning and the view of themselves as sexual beings. Some of the main themes that emerged included but were not limited to bouncing back, moving forward, determination, confidence, use of voice, safe, loving relationships, empowered, church, God, religion, etc. Although each woman’s experience is not exactly the same, their views regarding their mental, emotional, and physical experiences as survivors of CSA were very similar.
1098

Fostering resilience in primary educators: resilient women and their ability to endure, recover and grow through trauma

22 June 2011 (has links)
D. Ed. / Trauma can be described as the emotional shock response to a physical or emotional injury that is overwhelming and has a lasting effect on a person. Based on this definition, trauma can be considered an integral part of life in South Africa. The consequences and effects of trauma are severe, both on individual and society levels. Nobody escapes the effects of trauma, but women and children are particularly vulnerable. Unfortunately the vast majority of South Africans have little or no access to mental health services. Some people, however, seem to be resilient in response to trauma and hardship. Although various definitions of resilience can be found in the literature, resilience is defined in this thesis as the ability and characteristics that enable a person to endure, recover from, and be strengthened to grow personally, regardless of exposure to traumatic life events. Women are generally the primary educators of children in the South African society, whether it be their own children, grandchildren or others. If South African women were equipped with skills that could enable them to deal more effectively with trauma, they would – as primary educators – naturally transfer their skills and knowledge to the children in their care. There exists a need for preventative interventions that may equip women to cope effectively with trauma. Certain educational interventions may provide avenues through which this may be achieved. Educational drama is one such avenue through which women of diverse educational, socio-economical, and cultural backgrounds may be reached in a comprehensible, accessible and non-discriminatory way. In this study a number of issues pertaining to the prevalence of resilience in South African women have been explored and described. The purpose of this study was to create an interactive educational play aimed at facilitating mental health in women exposed to traumatic life events.
1099

Risk, Resilience, and Success in College for Students with Vision Disabilities

Angelocci, Rose 15 December 2007 (has links)
College students with visual disabilities are less likely to graduate than their sighted counterparts. The purpose of this study was to understand the life experiences of successful college students with visual disabilities. Concepts of risk and resiliency were used as a conceptual framework for understanding how people can have positive outcomes in spite of adversity. Individual, family, school, and community influences were explored. In-depth interviews were conducted with six participants who have vision impairments and were nearing the completion or had recently completed a college degree. Data were analyzed for common themes and meanings using a phenomenological method advanced by Moustakas (1994). Validity threats were minimized through triangulation, member checks, and thick data. Risk and protective factors in the context of family, school, and community for successful college students with visual disabilities were identified. Implications for rehabilitation counselors, college counselors, and special education teachers were discussed. Interventions to move students with visual disabilities toward resiliency and minimize the impact of risk factors that impede success were proposed. Suggestions for future research were offered.
1100

Experiencing Higher Education in Louisiana through a Native American Lens

Kelly, Linda 16 May 2008 (has links)
The purpose of this dissertation was to capture the voice of the Louisiana Native American students who attend Louisiana institutions of higher education. Native Americans are the least represented minority in colleges. More have entered college in recent years, yet they continue to leave college at a high rate. It is important to understand what motivates Native students to attend college and what keeps them in college. When an understanding of their persistence is achieved, strategies can be implemented to assist others. Research questions that prompted inquiry relate to a Louisiana Native American perspective. All of the research questions ask about the higher education experience and support the primary question: How can the higher education experiences of Native Americans be explained in models of persistence? This dissertation reviews the literature concerning persistence and departure of minority students. Development of ethnic identity is reviewed. The focus of this phenomenological qualitative research study was to examine the experiences of Native Americans during their collegiate journey. Twelve Native American students who attend five institutions of higher education in southern Louisiana were interviewed with open ended questions about their college experiences. Three participants were male and nine were female. Three tribal groups were represented: Choctaw-Apache, Coushatta and the United Houma Nation. Responses have been analyzed using the cultural model presented by Guiffrida (2006) and support the need for a cultural perspective, with the addition of the tribe as an influence. Students were satisfied overall with their experiences. Instances of stereotyping were present that made some students uncomfortable. Intrinsic motivation focused on competency and was frequently coupled with the sense of belonging. Extrinsic motivation came from tribal educational values which provided the cultural capital to pursue a degree. Intended application of the degree was most frequently tied back to the Indian community. Tribal influence was present from intention through to application of the degree. The responses of the participants in this study support a bicultural level and strong enculturation. A model of enculturation is proposed to address the participants' responses.

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