South Africa has faced tremendous changes over the past decade, which has had a huge impact on the working environment. Organisations are compelled to address the societal disparities between various cultural groups. However, previously disadvantaged groups have had to face inequalities of the education system in the past, such as a lack of qualified teachers (especially in the natural sciences), and poor educational books and facilities. This has often resulted in poor grade 12 results. Social responsibility and social investment programmes are an attempt to rectify these inequalities. The objective of this research was to investigate the validity of the current selection battery of the Youth Foundation Training Programme (YFTP) in terms of academic performance of the students on the bridging programme. A correlational design was used in this research in order to investigate predictive validity whereby data on the assessment procedure was collected at about the time applicants were hired. The scores obtained from the Advanced Progressive Matrices (APM), which forms part of the Raven's Progressive Matrices as well as the indices of the Potential Index Battery (PIB) tests, acted as the independent variables, while the Matric results of the participants served as the criterion measure ofthe dependent variable. The data was analysed using the Statistical Package for Social Sciences (SPSS) software programme by means of correlations and regression analyses. The results showed that although the current selection battery used for the bridging students does indeed have some value, it only appears to be a poor predictor of the Matric results. Individually, the SpEEx tests used in the battery evidently were not good predictors of the Matric results, while the respective beta weights of the individual instruments did confirm that the APM was the strongest predictor. Limitations were identified and recommendations for further research were discussed. / Thesis (M.A. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2007.

The recent worldwide shift in focus from goods production to service provision in Western countries has resulted in the expansion of the service sector. The front-line worker has become a central figure in the new workplace, forming an important link between the company and the customer. The nature of the interaction between customer service staff and clients influences the perceived quality of service rendered by the company. Call centre work requires a high degree of personal contact with the public and the performance of emotional labour. Previous research found emotional labour to be a significant predictor of burnout. Given the above scenario, the lack of empirical research that systematically investigates burnout in a customer services environment in South Africa is a source of concern. The objectives of this study were to determine the construct validity and internal consistency of the Maslach Burnout Inventory - General Survey (MBI-GS) (Schaufeli, Leiter, Maslach & Jackson, 1996) in a customer services environment, and to compare the relationship of burnout with various demographic characteristics. A cross-sectional survey design was used. The study population consisted of an accidental sample of customer services personnel (N = 228). The Maslach Burnout Inventory - General Survey (MBI-GS) was used to determine the level of burnout in the participants. A biographical questionnaire was used to gather additional information. Structural equation modelling (SEM) methods as implemented by AMOS were used to test the factorial model for the MBI-GS. Cronbach alpha coefficients and inter-item correlation coefficients were used to assess the internal consistency and construct validity of the MBI-GS. Descriptive statistics were used to analyse the data. T-tests and one-way analysis of variance (ANOVA) were used to determine differences between the sub-groups in the sample. Tukey tests were done to indicate which groups differed significantly when ANOVAS were done. The results confirmed a three-factor model of burnout, consisting of Exhaustion, Cynicism and Professional Efficacy. All three factors showed acceptable internal consistencies. The results also showed that customer service staff who measured high on exhaustion and cynicism (compared with those who measured low) experienced less job satisfaction. / Thesis (M.A. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2004.

The creation of a healthy, motivating organisational climate should be the aim of management. Organisational climate refers to a complex set of forces within an organisation, which have a direct influence on those who work in it. Studying organisational climate is imperative to understanding how organisations function at their core. However, a validated instrument is needed to detect the climate in an organisation. The objective of this study was to validate an organisational climate questionnaire in a corporate pharmacy group. A cross sectional survey design was used. Interviews were conducted with employees and an organisational climate questionnaire was constructed. The Organisational Climate Questionnaire (OCC) was completed by a sample of employees in a corporate pharmacy group (N = 159). Descriptive statistics (e.g. means, standard deviations, skewness and kurtosis) inferential statistics were used to analyse the results. Factors extracted include recognition and feedback, management, work relationships, task characteristics, responsibility, work pressure and decision-making. The internal consistencies of two factors were unacceptable. One-way analysis of variance of organisational climate in different regions showed practically significant differences between North West and Mpumalanga regarding how they currently view management, as well as practically significant differences between North West and both Free State and Gauteng concerning Management. The average responses of the white employees and employees of colour in this study seem to be the same, except regarding recognition and feedback. The average responses of the employees from the two gender groups seem to be the same, except regarding responsibility and work pressure. Recommendations for future research were made. / Thesis (M.A. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2005.

The nursing profession in South Africa currently faces a climate of uncertainty and change as governments struggle to contain healthcare while improving access, equity and health outcomes. These factors are placing an extra burden on people in a profession that is already encapsulated by an above-average risk environment for burnout and occupational stress. This research emerges from the need to enhance the work wellness of employees in an already burdened profession. Enhancement of work wellness depends on the successful diagnosis of burnout, work engagement and occupational stress. To be able to measure these constructs, it is important to use reliable and valid instruments, taking into account the cultural diversity in a multicultural setting such as South Africa. No validated instruments in this regard exist for the nursing profession in South Africa. Furthermore, little information is available regarding these constructs and the relationship between them, including sense of coherence and coping strategies. The general aim of this study was to validate the Maslach Burnout Inventory (MBI), the Utrecht Work Engagement Scale (UWES) and the Nursing Stress Indicator (NSI) for the nursing profession in South Africa; to analyse the differences between the levels of burnout and engagement of different biographical groups; to identify the major occupational stressors and to investigate the relationships between occupational stress, sense of coherence, coping, burnout and work engagement. A cross-sectional survey design was used, with stratified random samples (N = 818) taken of registered nurses in South Africa. The Maslach Burnout Inventory-Human Services Survey. the Utrecht Work Engagement Scale, the Nursing Stress Indicator, the Orientation to Life Questionnaire, the Coping Orientation for Problem Experienced Questionnaire, as well as a biographical questionnaire, was administered for the purpose of data collection. Cronbach alpha coefficients, exploratory factor analysis, Pearson product-moment correlations, multivariate analysis of variance (MANOVA), one-way analysis of variance (ANOVA), t-tests, descriptive statistics and multiple regression analysis were employed to analyse the data. Exploratory factor analysis with target rotations resulted in a three-factor model of burnout, consisting of exhaustion, depersonalisation and personal accomplishment, and a one-factor model of work engagement. The scales showed acceptable construct equivalence and internal consistencies for all three language groups, except for one item in the engagement scale, where a significant lower score was noticed for the African language speaking group. Practically significant differences were found in the burnout and engagement levels of registered nurses with regard to their age and rank, and in the case of work engagement, also regarding the years spent in nursing. T-tests revealed that burnout and engagement levels were influenced by the occurrence of a medical condition and a lack of specialised training, and in the case of burnout, also by longer working hours (full-time employment). Registered nurses reported significantly high levels of stress relating to staff shortage, inadequate salaries and excessive administrative duties. Lack of organisational support and job demands were the strongest predictors of burnout (emotional exhaustion and depersonalisation), together with a weak sense of coherence. Focus on and ventilation of emotions as a coping strategy was also related to emotional exhaustion. Low levels of burnout were found to be related to high levels of engagement. Multiple regression analysis revealed that occupational stress, a weak sense of coherence, approach coping, focus on and ventilation of emotions, and low seeking of emotional/social support predicted 33% of the variance in emotional exhaustion. Twenty-seven percent of the variance in depersonalisation was predicted by occupational stress, a weak sense of coherence, avoidance coping, focus on and ventilation of emotions, and a low turning to religion. Occupational stress because of job demands, a weak sense of coherence, approach coping strategies, focus on and ventilation of emotion, in the absence of avoidance as a coping strategy, predicted 17% of the variance in personal accomplishment, while low levels of occupational stress because of job demands, a weak sense of coherence, and approach coping strategies predicted 24% of the variance in engagement. Recommendations for future research were made. / Thesis (Ph.D. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2006.

Performance-based earthquake engineering is an emerging field of study that complements the prescriptive methods that the design codes provide to ensure adequate seismic performance of structures. Accounting for uncertainties in the performance assessments forms an important component in this area. In this context, the present study focuses on two broad themes; first, treatment of uncertainties and the application of the first-order reliability method (FORM) in finite-element reliability analysis, and second, the seismic risk assessment of reinforced concrete structures for performance states such as, collapse and monetary loss. In the first area, the uncertainties arising from inherent randomness (“aleatory uncertainty”) and due to the lack of knowledge (“epistemic uncertainty”) are identified. A framework for the separation of these uncertainties is proposed. Following this, the applicability of FORM to the linear and nonlinear finite-element structural models under static and dynamic loading is investigated. The case studies indicate that FORM is applicable for linear and nonlinear static problems. Strategies are proposed to circumvent and remedy potential challenges to FORM. In the case of dynamic problems, the application of FORM is studied with an emphasis on cumulative response measures. The limit-state surface is shown to have a closed and nonlinear geometric shape. Solution methods are proposed to obtain probability bounds based on the FORM results. In the application-oriented second area of research, at first, the probability of collapse of a reinforced concrete frame is assessed with nonlinear static analysis. By modelling the post-failure behaviour of individual structural members, the global response of the structure is estimated beyond the component failures. The final application is the probabilistic assessment of monetary loss for a high-rise shear wall building due to the seismic hazard in the Cascadia subduction zone. A 3-dimensional finite-element model of the structure with nonlinear material models is subjected to stochastic ground motions in the reliability analysis. The parameters for the stochastic ground motion model are developed for Vancouver, Canada. Monetary losses due to the damage of structural and non-structural components are included.

Darbą atliko Vilniaus pedagoginio universiteto Socialinių mokslų fakulteto Sociologijos ir politologijos katedros studentė Daiva Vaičiulionienė. Darbo tema: „Bankų patikimumas: jaunimo ir banko darbuotojų nuostatos („SWEDBANK‘ atvejis). Darbo tikslas: atskleisti jaunų (18-26 metų ) „Swedbank“ banko klientų, šio banko darbuotojų ir padalinių vadovų nuostatas į banko patikimumą bei išskirti svarbiausius patikimumo kriterijus. Darbo uždaviniai : 1. Pateikti bankų socialinės atsakomybės sampratą 2. Aptarti bankų patikimumo vertinimo kriterijus. 3. Atskleisti kokiomis banko paslaugomis ir kaip dažnai naudojasi jaunimas. 4. Ištirti banko patikimumo kriterijų vertinimą jaunimo (18-26 metų klientų) , darbuotojų ir padalinių vadovų tarpe. 5. Gautus klientų analizės rezultatus palyginti su vyresnių (turinčių daugiau nei 27 metus) „Swedbank“ klientų požiūriu. 6. Atskleisti kaip "Swedbank" banko darbuotojai ir padalinių vadovai supranta „patikimą banką“, palyginti jų požiūrius. 7. Palyginti jaunimo (18-26 metų banko klientų) nuostatas į bankų patikimumą Lietuvoje su „Swedbank“ darbuotojų bei vadovų nuostatomis ir pateikti siūlymus, kaip siekti aiškesnio ir abipusio supratimo. Tyrimo hipotezės: 1. Jaunesni (18-26 metų) banko klientai labiau pasitiki „Swedbank“ banku nei vyresni (41 metų ir vyresni ) klientai. 2. Jaunesni (18-26 metų) banko klientai teigia, kad svarbiausi yra banko orientacijos į klientą veiksniai, o "Swedbank" banko specialistai ir... [toliau žr. visą tekstą] / The research work was made by Daiva Vaiciulioniene, the student of Department of Sociology and Politology of Social studies in Vilnius Pedagogical University. The topic of the work is “Reliability of Banks: attitudes of youth and bank employees (case of „SWEDBANK“). The aim of the work is to reveal the attitude of young “Swedbank” clients (aged 18 – 26) and employees towards reliability of bank and make the basic criteria of reliability. The tasks of the work: 1. To give the conception of bank social responsibility. 2. To discuss the criteria of evaluation in bank reliability. 3. To reveal what bank services are used by youth and how often. 4. To survey the criteria of evaluation in bank reliability among the clients (aged 18 – 26) and employees as well as department managers. 5. The results obtained after the analysis of clients should be compared with those of older clients (aged 27 years and more) of “Swedbank”. 6. To reveal how “reliable bank” is understood between bank employees and department managers. 7. To compare the attitudes of young clients (aged 18 – 26) towards bank reliability in Lithuania with those of “Swedbank” employees and managers. To give offers how to pursue for more definite and mutual understanding. The hypotheses of the research: 1. Younger clients (aged 18 – 26) trust “Swedbank” more than older clients (aged 41 years and more) of the bank. 2. Younger clients (aged 18 – 26) claim that most important factor is bank orientation to the client while... [to full text]

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A practical engineering design problem is used to examine the over-conservativeness of designs obtained using deterministic optimization with worst-case parameter assumptions and a safety factor. Additionally, an attempted application of reliability-based design optimization (RBDO) demonstrates the limits of RBDO for practical problems. The design problem considered here is TESCO's Internal Casing Drive System (ICDS), which is used in feeding pipeline, or casing, into predrilled holes. After developing a finite element model of the ICDS, experimental data is used to successfully validate modeling methods and assumptions. The validated model is then subjected to multiple analyses to determine an appropriate design configuration to be used as the starting point for optimization. Worst-case, safety factor-based design optimization (SFBDO) is then applied considering two and three design variables, and is successful in increasing the critical load of the ICDS, Pcrit, by 35% and 45%, respectively. An efficient and recognized RBDO method, Sequential Optimization and Reliability Assessment, is selected for application to the design problem to determine an optimum design based on reliability. Due to the optimization formulation, however, SORA cannot be applied. The ICDS design problem represents a practical example that demonstrates the difficulties and limits in applying RBDO to practical engineering design problems. To evaluate the over-conservativeness of worst-case SFBDO, structural reliability analysis is performed on the deterministic optimum designs. It is found that the value of Pcrit for both the two and three variable optimum designs can be increased by 53% while maintaining acceptable probability of failure, demonstrating the over-conservativeness of the worst-case SFBDO. / Thesis (Master, Mechanical and Materials Engineering) -- Queen's University, 2008-09-05 10:51:26.273

Purpose: A key objective feature in Restless Legs Syndrome (RLS) is the presence of Periodic Limb Movements (PLMs). The gold standard for documenting PLMs is through polysomnogram (PSG), an overnight sleep study in a sleep laboratory, which is expensive and often inaccessible. This work explored the ability of a portable sleep monitor (PM) to reliably record surface EMG signals, to reliably record limb movements overnight in comparison with PSG, and examined intra- and inter-rater reliability for scoring the PM recordings. Methods: The PM’s surface EMG channel was tested against a standard EMG amplifier by recording bilateral tibialis anterior muscle activity in five healthy participants. It was also tested for recording PLMs simultaneously with polysomnography at Kingston General Hospital with 40 participants referred for screening of sleep disorders. PLMs were scored using standard criteria according to the American Academy of Sleep Medicine Scoring Manual (2007) Analyses: Comparison between the two methods of surface EMG recording was through counts of muscle activity bursts. Comparison of overnight PLM counts was through t-test, Pearson’s r, Intraclass Correlation Coefficient (ICC) and Bland-Altman plots. Intra-rater reliability and inter-rater reliability between two analysts was examined by ICC. Results: Examination of the PM surface EMG recordings demonstrated an exact match of muscle activity counts between the PM and standard EMG recordings. In the PSG study, mean difference between the two PLMI values was +4.8 ± 11.1, t (34) = 2.1, p = 0.04, which was statistically significant and demonstrated systematic over-reporting by the portable monitor. The two PLMI values were strongly correlated, giving a Pearson’s r = .87, p < 0.001. ICC for absolute agreement was 0.87, (95% CI, 0.76 – 0.93), p < 0.001. Bland-Altman analysis gave 95% limits of agreement between the two PLM Indices as +27.9 (95% CI +33.0 to 20.2) to – 19.3 (95%CI -10.6 to -23.4). Conclusions: These data suggest there may be sufficient agreement between PLMI collected by PM and polysomnography to support the use of the PM for measuring PLMs. Further testing should address test retest reliability and examine the performance of the PM in a wider patient population. / Thesis (Master, Rehabilitation Science) -- Queen's University, 2012-08-24 16:40:03.381