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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.
11

The re-evaluation and rebranding of a public library from a Human Centred Design (HCD) point of view: a case study

Heenop, Danelle 10 1900 (has links)
This study attempts to gain an understanding of the responsibilities and place of the designer within his/her social, political and environmental context, a topic which is continuously being scrutinised. Graphic designers, as practitioners and researchers, have shifted towards principles found within Human-Centred Design (HCD) and problem-solving processes, primarily concerned with the community’s need and the voice of the community members within the problem and thus integrating the user into the design practice and problem-solving process. This practice-based research project reflects upon the integration of human-centred graphic design processes, analysing the brand and wayfinding design currently incorporated in the Sasolburg Public Library (SPL) through the implementation of HCD thinking and problem-solving processes, Participatory Action Research (PAR) and the HCD IDEO toolkit. The researcher critically and experientially questions and reflects upon HCD thinking: its problem-solving strategies, strengths and the ultimate result of its integration into the project, as she aimed to codesign a functional brand identity and way-finding system that resonates with the identified community need as well as the SPL’s current space and place ‘description’, essentially attempting to create a public library that is human-centred at heart. The integrated co-designed problem-solving processes, guided by the HCD IDEO toolkit, were applied within a focus group setting, and comprised out of seven focus group sessions referred to as HCD team meetings. The focus group sessions consisted out of six HCD team meeting and one member checking contact session, supported by various research phases. The team meetings all considered theoretical constructs within multiple HCD research approaches, including the HCD analysis model, PAR research cycles and the action research model, constantly re-considering existing assumptions and structures within the unique context of a public library setting, but specifically the SPL. Each focus group team meeting, and its subsequent research tools, were tailor-made for the SPL context, considering principles of the co-design process along with the expertise and perceived knowledge structures of the HCD team consisting of the designer (as specialist within practice), the researcher (as specialist academic) and the librarians (as specialists within the SPL and the identified problem). Arising from this complex construction of tools, and subsequent data collected, various findings were made identifying the value and strengths as well as the feasibility of HCD thinking processes and their integration within a ‘real life context’. Summarised findings include: the implementation of co-design processes, PAR repetitive cycles, and the creation of design deliverables answering to identified needs; tensions identified within the co-design process, sparking the beginning of what seems to be a continuous and endless ‘power/authority/expertise struggle’ throughout the problem-solving process; an aesthetic adjustment (with specific reference to graphic design executions identified within traditional design practices) as a result of the co-design process and lastly, a break in HCD co-design thinking, which argues for implementing democratic thinking practice and processes within the production and design application process. Considering the findings on the HCD research process within the context of this research, suggestions towards possible design solutions and future potential applications (within a theoretical context) are made, allowing the research in its specific, public library context, to contribute to HCD theoretical thinking processes and their integration within graphic design research and practice.
12

Sedentary Time and the Cumulative Risk of Preserved and Reduced Ejection Fraction Heart Failure: from the Multi-Ethnic Study of Atherosclerosis

Rariden, Brandi Scot 01 January 2018 (has links)
ABSTRACT Purpose: The purpose of this study was to examine the relationship between self-reported sedentary time (ST) and the cumulative risk of preserved ejection fraction heart failure (HFpEF) and reduced ejection fraction heart failure (HFrEF) using a diverse cohort of U.S. adults 45-84 years of age. Methods: Using data from the Multi-Ethnic Study of Atherosclerosis (MESA), we identified 6,814 subjects (52.9% female). All were free of baseline cardiovascular disease. Cox regression was used to calculate the hazard ratios (HR) associated with baseline ST and risk of overall heart failure (HF), HFpEF, and HFrEF. Weekly self-reported ST was dichotomized based on the 75th percentile (1,890 min/wk). Results: During an average of 11.2 years of follow-up there were 178 first incident HF diagnoses; 74 HFpEF, 69 HFrEF and 35 with unknown EF. Baseline ST >1,890 min/wk was significantly associated with an increased risk of HFpEF (HR [95% CI]; 1.87 [1.13 – 3.09], p= 0.01), but not HFrEF (HR [95% CI]; 1.30 [0.78 – 2.15], p= 0.32). The relationship with HFpEF remained significant in separate fully adjusted models including either waist circumference (HR [95% CI]; 2.16 [1.23 – 3.78], p < 0.01) or body mass index (HR [95% CI]; 2.17 [1.24 – 3.80], p < 0.01). Additionally, every 60 minute increase in weekly ST was associated with a significant 3% increased risk of HFpEF (HR [95% CI]; 1.03 [1.01 – 1.05], p < 0.01). Conclusions: Sedentary time > 1,890 min/wk (~4.5 h/d) is a significant independent predictor of HFpEF, but not HFrEF.
13

Opioid Use Disorder: The Ugly Return and Treatment Effectiveness of Heroin Use

Drayton, Antwana L 01 January 2018 (has links)
Relationships among demographic, socioeconomic and person factors and Opioid Use Disorder diagnosis, treatment, and recidivism were explored. Data from a sample of 4,860 adults with substance use difficulties were analyzed. A program evaluation was conducted on Gateway Community Services to explore the use of Medication Assisted Treatments (MATs) and Psychosocial (PS) treatments to address Opioid Use Disorder. Using archival data, a chi-square analysis and independent sample t-test was performed. The results expressed that a relationship among race, type of substance use diagnosis, and treatment type and recidivism rate was found. While White/Non-Hispanics adults were more likely to use heroin than any other racial/ethnic backgrounds, gender differences were also found. Finally, frequency and duration of a combined treatment (PS + MAT) were negatively related to recidivism with no determination of previous prescription opioid use to be examined at this time. Keywords: medication assisted treatment, recidivism, psychosocial, opioid

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