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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.
71

Small Business Growth and Non-Growth over the Long-term

Hansen, Bridget J. January 2009 (has links)
This study investigates the growth and non-growth of small-and-medium-sized enterprises (SMEs) over the long-term. A multiple case study methodology was used to examine the growth paths of eight SMEs over a period of fourteen years. Four firms represented manufacturing and four, the professional and business services industry. The firms were paired according to similar sectors and contrasting growth paths. Longitudinal employment data illustrated the firms’ growth paths, and the primary method of data collection was semi-structured interviews of the firms’ owner-managers. The research incorporated extensive literature, including traditional research approaches and life cycle models and emergent literature on organisational learning and growth paths. The growth and non-growth firms were found to be distinct from each other, regardless of industry. The growth firms’ owner-managers had strong growth ambitions and actively sought the recognition and challenges that arise from the operation of multiple growth businesses. The non-growth owner-managers had passive growth ambitions and focused on maintaining their accustomed lifestyle. These differences were also illustrated in the firms’ approaches to networking, internationalisation and technological advancement. The growth firm owner-managers were all portfolio entrepreneurs and had strong professional networks, which they considered were strategically vital. In contrast, the non-growth owner-managers were novice entrepreneurs and were nonchalant towards networking. Innovation and flexibility were identified as important characteristics in the long-term performance of the firms. Findings also indicated that owner-managers’ perceptions of their external business environment determined the influence it had on the business. Individual and collective learning processes underpin these findings in determining long-term growth performance of the firms. The strong interrelationships between owner-managers, learning processes, and longitudinal growth paths suggest areas of future research.
72

An improved error correction algorithm for multicasting over LTE networks / Johannes Mattheus Cornelius

Cornelius, Johannes Mattheus January 2014 (has links)
Multicasting in Long-Term Evolution (LTE) environments poses several challenges if it is to be reliably implemented. Neither retransmission schemes nor Forward Error Correction (FEC), the traditional error correction approaches, can be readily applied to this system of communication if bandwidth and resources are to be used efficiently. A large number of network parameters and topology variables can influence the cost of telecommunication in such a system. These need to be considered when selecting an appropriate error correction technique for a certain LTE multicast deployment. This dissertation develops a cost model to investigate the costs associated with over-the-air LTE multicasting when different error correction techniques are applied. The benefit of this simplified model is an easily implementable and fast method to evaluate the communications costs of different LTE multicast deployments with the application of error correction techniques. / MIng (Computer and Electronic Engineering), North-West University, Potchefstroom Campus, 2014
73

Pain Management within the Long-term Care Setting: An Inquiry into Staff-perceived Contemporary Pain Management Practices

Weber, Haley January 2014 (has links)
Background: Chronic pain is a frequent and undertreated ailment within the long-term care community (Herman et al, 2009). The likelihood of experiencing pain increases with age and failure to treat this condition may expose individuals to prolonged and unnecessary suffering (Ramage-Morin, 2008). Furthermore, undertreated pain can lead to a life of inactivity and a failure to carry out normal social and vocational roles which in term may result in higher rates of depression, anxiety and sleep disorders (Clark, 2000). The present study aimed to explore staff perceptions on current pain management within long-term care including insights to future needs in optimizing pain management. This work will contribute to the overall awareness surrounding possible reasons that current pain management within long-term care is viewed as suboptimal (Herman et al, 2009). Methods: A qualitative, post-positivist grounded theory study was carried out in order to investigate staff-perceived strengths, weaknesses and barriers surrounding the topic of pain-management within the long-term care setting. Semi-structured interviews with 17 long-term care staff members from a variety of vocations were conducted with a focus on identifying and clarifying properties surrounding the notion that pain management is currently suboptimal. A focus group session was implemented as a method to further develop the emerging grounded theory. Results: Nine themes surrounding pain management within the long-term care setting were identified in the present study. These themes gave rise to the core concept of creating an environment supportive of optimal pain management. The nine themes were integrated into the theory of optimization of pain management within long-term care through thematic interpretation. The focus group session further developed and confirmed themes identified throughout the one-on-one interviews as well as expanded the discussed theory. Discussion: The developed theory of optimization of pain management within the long-term care setting provides a comprehensive overview of the current barriers facing adequate pain management as well as outlines future suggestions for improvement of managing pain within the long-term care setting.
74

Family perceptions and satisfaction with end-of-life care in long-term care facilities

Thompson, Genevieve 31 August 2007 (has links)
The purpose of this study was, first, to further our understanding of the experience of dying in a long-term care (LTC) facility from the perspective of family members and second, to identify the relationships between the various factors which may influence satisfaction with end-of-life care. Using a sequential mixed methods design, a convenience sample of 87 family members completed a survey interview using a modified version of the Toolkit of Instruments to Measure End-of-life Care (TIME) Nursing Home Version in the first phase of the study. Findings from the parametric and non-parametric analyses indicated that family satisfaction with end-of-life care was best predicted by contact and communication with nursing staff, feeling that care provided at the end of life met expectations, staff providing consistent care, feeling that the health care aide listened to their concerns about care and that respondents felt they had received enough emotional support. Being transferred to hospital in the last month of life, dying in a place other than the LTC facility, and respondent age and employment status were all associated with significant mean differences in satisfaction scores. In the second phase, three focus groups were conducted to further explore areas of satisfaction and dissatisfaction with end-of-life care. Focus groups provided confirmation of the findings of the first phase of the study and were instrumental in developing a list of ten recommendations for improvements in end-of-life care delivery. Recommendations for future research are made based on the study results.
75

Care housing for people with dementia : towards an evaluation

Foster, Catherine Victoria January 1997 (has links)
This study set out to evaluate a small scale model of care for people with dementia that aimed to support residents within a daily household routine (termed household care). Stemming from a pluralistic evaluation, this thesis examines issues identified as important to residents' experience, namely the ability of the care houses to provide a home for life, the process and effectiveness of recreating a homely environment and the implications of group-living. Three case studies were investigated with multiple methods, including semi-structured interviews with staff, relatives and representatives of managing agencies, structured observation and assessment of dependency. Respondents believed care housing was superior to its alternatives and attributed perceived improvements in residents' well-being to the nature of staff support and the 'homely' setting. Agency representatives were preoccupied with their relationships with each other and how to sustain and expand this model of care. Staff focused on the nature and conditions of the work. Kin were keen that residents should settle and stay in the care houses. Residents' support needs at least matched entry criteria but over half had to move out to hospital because of physical illness and behavioural problems. This study suggests that it was very difficult for residents to accept the houses as 'home'. Residents' and their relatives' participation was, in practice, limited but one house was particularly successful in implementing household care; reasons are suggested for this. Residents' interactions with each other seemed to be increased by household care but their relationships were influenced by a number of factors, including the presence of dementia. The latter exacerbated the tensions of group-living. The challenge for care houses was to sustain care as dementia progressed and extend good quality care to those with more substantial behavioural and physical support needs.
76

The Nucleus of the Solitary Tract is Necessary for Apnea-induced Respiratory Plasticity

Torontali, Zoltan 23 July 2012 (has links)
The respiratory system is attentive, adaptive, learns and has memory. The respiratory system remembers repeated respiratory challenges to fine tune its motor activity by modulating neuronal synaptic strength. This phenomenon, respiratory long term facilitation (LTF), functions to strengthen the ability of respiratory motor neurons to enhance contraction of breathing muscles. LTF could serve as a protective mechanism against obstructive sleep apnea, a disease characterized by the collapse of upper airways, by restoring upper airway patency. LTF can be induced through modulation of vagal afferent feedback via repeated apneas. Here, we used reverse microdialysis, electrophysiology, neuropharmacology, and histology to determine if the nucleus of the solitary tract (NTS), a brain region exclusively receiving vagal afferents, is the origin of the neural circuit responsible for apnea-induced plasticity. My work shows bilateral injection of 5% lidocaine into the NTS prevented LTF. We conclude the NTS is required for triggering apnea-induced LTF.
77

The Nucleus of the Solitary Tract is Necessary for Apnea-induced Respiratory Plasticity

Torontali, Zoltan 23 July 2012 (has links)
The respiratory system is attentive, adaptive, learns and has memory. The respiratory system remembers repeated respiratory challenges to fine tune its motor activity by modulating neuronal synaptic strength. This phenomenon, respiratory long term facilitation (LTF), functions to strengthen the ability of respiratory motor neurons to enhance contraction of breathing muscles. LTF could serve as a protective mechanism against obstructive sleep apnea, a disease characterized by the collapse of upper airways, by restoring upper airway patency. LTF can be induced through modulation of vagal afferent feedback via repeated apneas. Here, we used reverse microdialysis, electrophysiology, neuropharmacology, and histology to determine if the nucleus of the solitary tract (NTS), a brain region exclusively receiving vagal afferents, is the origin of the neural circuit responsible for apnea-induced plasticity. My work shows bilateral injection of 5% lidocaine into the NTS prevented LTF. We conclude the NTS is required for triggering apnea-induced LTF.
78

Long-term care institutionalization : an analysis of factors influencing selection by elderly persons and their families

Varney, Joyce Mitchell January 1987 (has links)
Typescript. / Thesis (D.P.H.)--University of Hawaii at Manoa, 1987. / Bibliography: leaves 174-182. / xvii, 182 leaves, bound ill. 29 cm
79

Long term contracts and farm inflexibility premium in the production of cellulosic ethanol

Jalili, Rozita 05 1900 (has links)
Farmers will supply the raw ingredients for the emerging cellulosic ethanol industry. The long-term relationship between a farmer and a processing firm is expected to be contractual. A processing firm has an incentive to sign long-term contracts to ensure a cost-efficient level of raw ingredient supply. However, farmers generally prefer to operate with either no contract or a short-term contract in order to maintain options for adjustments in future acreage allocations due to changes in relative prices. Of interest in this research is to understand the incentives of farmers and calculating the efficient level of the “inflexibility premium”, which a processing firm must provide to a farmer when a long term contract is signed. A stochastic dynamic programming model is solved and with the help of Microsoft Excel numerically evaluated to illustrate the marginal inflexibility premium is increasing with contract length and the level of price variability, and is decreasing with the size of acreage adjustment costs.
80

Decommissioning citizenship : the organization of long-term residential care

Baumbusch, Jennifer Lyn 05 1900 (has links)
Long-term residential care (LTRC) is a complex sociopolitical milieu where people from diverse backgrounds come to live and work together. In recent years health care restructuring has resulted in the closure of facilities; health care policy has narrowed the population that accesses LTRC so that only those who are the most medically and socially complex are admitted; and there has been a transformation of the work force, a workforce that is mainly comprised of Women of Colour and is among the lowest paid in health care. The purpose of this study was to critically examine the organization of care in LTRC within this context. The theoretical perspective guiding the study was informed by postcolonialism, postcolonial feminism, intersectionalities, and Foucaudian epistemology. The method of inquiry for the study was critical ethnography, which allowed for critical analysis of `taken for granted' assumptions in the organization of care. Over a period of ten months, I was immersed in two LTRC facilities in the Lower Mainland of British Columbia. Field work consisted of approximately 218 hours of participant observation. I conducted 51 interviews with administrators, family members, residents, and staff. I reviewed relevant provincial policies and facility-based policies and procedures. I also collected quantitative data related to resident transitions in the health care system (for example, admissions, discharges, and hospital admissions), and staffing levels. Findings from this study were discussed in three key themes. First, a systematic decommissioning of citizenship occurred for residents and staff in this setting. Second, the impact of health care restructuring over the past decade had important consequences for relationships between residents, family, and staff. Third, relational care took place in `stolen' moments that occurred despite heavy workloads. All of these themes were underscored by intra-gender oppression, relations of power, and influenced by discourses of ageism and corporatism, which ultimately played out in day to day interactions between those who live and work there. Recommendations from this study included: addressing the entrenched hierarchies in nursing, further examination of the public-private funding model in LTRC, and the introduction of an independent ombudsperson to ensure consistent, high quality care across the LTRC sector.

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