An exploratory study was undertaken to investigate the relationship between personality preference groupings, as described by Jung’s (1959) type theory, and emotional intelligence, as measured by Bar-On’s emotional intelligence quotient (Bar-On, 1997). The sample group consisted of 1 121 recruitment candidates for a South African investment bank. The sixteen personality types, as measured by the Myers-Briggs Type Indicator, were represented in the sample. The statistical analysis conducted for this study included comparison of means, correlation analysis and analysis of variance. The results indicated statistically significant relationships between the preferences of Extroversion, Judgement, their combined preference grouping and emotional intelligence. No statistically significant relationships were found between the preference groupings of Intuition and Thinking, Sensing and Thinking, Intuition and Feeling, and Sensing and Feeling. The preferred Feeling preference type consistently scored the lowest in terms of emotional intelligence scores. / Industrial and Organisational Psychology / M.A. (Industrial and Organisational Psychology

This work deals with computational modelling of static and dynamic analyses of journal bearings, with analyses of stability of oil-film motion and analyses of response of the rotor assemblies. At our workplace a new theoretical approach to the modelling of the static and dynamic behaviour of the rigid rotating body in liquid is used. The approach is based on the application of the Navier-Stokes motion eq., equation of continuity and boundary conditions eqs. It is possible to separate the motion of the rigid body and liquid from each other using suitable transformation relations and then it is also possible to separate the stationary and nonstationary motions from each other. A method of control volumes is used for these analyses. The real Bézier body is used for the description of the geometrical configuration and also for the approximation of velocity and pressure functions. Combined the ALE (Arbitrary Lagrange-Euler) method is used, because it´s necessary to generate a new net (to perform new meshing) for a change of the shaft position. The additional effects of the liquid (additional mass, stiffness and damping), which we solved in dynamic analysis, are the function of the single parameter only – the shaft-centre position. There is a large advantage in comparison with the standard approach, which is based on application of the Reynolds liquid eq. Author solving the models of the long and short journal bearing with different geometry, especially the elliptical and cylindrical bearings, with incompressible and compressible journal bearing liquid. If the journal bearing problem is solved, it is possible to include the additional effect of the liquid to the right side of the motion equation of a model rotor assembly. Author analyze a model rotor assemblies with two degrees of freedom, which is supported inside of the two journal bearings on the ends of the rotor (Jeffcott rotor assembly). Author modelling and solveing a response of the model rotor assembly on the forced steady-state vibrations, which was actuating by the unbalanced matter.

An exploratory study was undertaken to investigate the relationship between personality preference groupings, as described by Jung’s (1959) type theory, and emotional intelligence, as measured by Bar-On’s emotional intelligence quotient (Bar-On, 1997). The sample group consisted of 1 121 recruitment candidates for a South African investment bank. The sixteen personality types, as measured by the Myers-Briggs Type Indicator, were represented in the sample. The statistical analysis conducted for this study included comparison of means, correlation analysis and analysis of variance. The results indicated statistically significant relationships between the preferences of Extroversion, Judgement, their combined preference grouping and emotional intelligence. No statistically significant relationships were found between the preference groupings of Intuition and Thinking, Sensing and Thinking, Intuition and Feeling, and Sensing and Feeling. The preferred Feeling preference type consistently scored the lowest in terms of emotional intelligence scores. / Industrial and Organisational Psychology / M.A. (Industrial and Organisational Psychology

Legalised desegregation through the implementation of the South African Schools law (Law no. 84 of 1996) sparked the hope of an opportunity to promote integration between learners and more than that, that the former would also extend to the larger community. The media has however indicated that racial-integration in schools is not necessarily experienced as positive by all the role players and that the process does not present itself as being problem-free. The goal of this study was to investigate the experiences of racial minority groups within majority school contexts; the challenges that are posed to them within the contexts; the factors that may play a role in their adjustment and functioning within the context; the negotiation of racial-ethnicity and social identity that accompanies it, and the possible relationship that exists between the former and their emotional intelligence (EI). These goals were realised through the launch of a theoretical, as well as an empirical investigation of aforementioned aspects related to the life worlds of racial minority groups in a majority school context. The empirical investigation was conducted from an INTERPRETIVISTIC-positivistic paradigm. Two schools where white and black learners are respectively in the minority were involved in the study. All the learners (grade 9-12) that were regarded as part of the racial minority group in the involved schools, were asked to complete an EI-questionnaire, the EQ-i:YV, after which six participants (three males and three females) from each school were selected on the basis of their scores achieved on the previously mentioned questionnaire. Afterwards qualitative techniques (focus groups, semi-structured interviews, observations and reflection) were implemented to investigate the (racial and social) identity negotiation, adjustment and functioning of the participants in their respective school contexts. The former was also related to their EI. Triangulation and crystallisation were implemented to verify the findings. Racism was identified as the biggest stumbling block to successful integration in the white school context, whereas language appeared to be the biggest stumbling block of the white participants’ adjustment and functioning within their black school context. Social categorisation emerged as a reality in both school contexts and white learners appeared to be evaluated as the higher-status group in both schools. From the results it appears that no relationship worth mentioning exists between the white participants’ EI and their identity negotiation within a black school context, whilst it appears as if a small relationship exists between the black participants’ EI and their identity-negotiation within a white school context. It appears however that a strong relationship exists between participants’ EI and their adjustment and functioning within their majority school context. The following additional factors (that are not applicable to EI) that can play a possible role in the adjustment and functioning of racial minority groups in majority school contexts have also been identified: home circumstances, faith, recognition of sport and/or cultural achievement and the support of one or more parents. AFRIKAANS : Daar is met die wettiging van desegregasie deur die Suid-Afrikaanse Skolewet (Wet no. 84 van 1996) gehoop dat die geleentheid geskep sou word om integrasie tussen leerders te bevorder en dat voorgenoemde na die breër gemeenskap sou uitkring. Uit die media blyk dit egter dat rasse-integrasie in skole allermins positief deur al die rolspelers beleef word en dat die proses nie sonder probleme verloop nie. Die doel van hierdie studie was om ondersoek in te stel na rasseminderheidsgroepe se belewenis van meerderheidskoolkontekste; die uitdagings wat binne hierdie kontekste aan hulle gestel word; die faktore wat moontlik ‘n rol in hulle aanpassing en funksionering in hierdie kontekste speel; die onderhandeling van ras-etniese en sosiale identiteit wat daarmee gepaard gaan, en die moontlike verband wat tussen voorgenoemde en hul emosionele intelligensie (EI) bestaan. Hierdie doelstellings is gerealiseer deur ‘n teoretiese, sowel as ‘n empiriese ondersoek na voorgenoemde aspekte van die leefwêrelde van rasseminderheidsgroepe in meerderheidskoolkontekste te loods. Die empiriese ondersoek is vanuit ‘n INTERPRETIVISTIES-positivistiese paradigma onderneem. Twee skole waar wit en swart leerders onderskeidelik in die minderheid is, is by die studie betrek. Al die leerders (graad 9-12) wat as deel van die rasseminderheidsgroep in die betrokke skole beskou kon word, is gevra om ‘n EI-vraelys, die EQ-i:YV, te voltooi, waarna ses deelnemers (drie seuns en drie dogters) op grond van die tellings wat hulle op voorgenoemde vraelys behaal het, geselekteer is. Kwalitatiewe tegnieke (fokusgroepe, semi-gestruktureerde onderhoudvoering, observasie en refleksie) is daarna geïmplementeer om die (ras-etniese en sosiale) identiteitsonderhandeling, aanpassing en funksionering van die deelnemers in hul onderskeie skoolkontekste te ondersoek. Voorgenoemde is ook met hul EI in verband gebring. Triangulasie en kristallisasie is geïmplementeer om bevindinge te verifieer. Rassisme is as die grootste struikelblok tot suksesvolle integrasie in die wit skoolkonteks geïdentifiseer, terwyl taalprobleme die grootste struikelblok in die wit deelnemers se aanpassing en funksionering in hul swart skoolkonteks blyk te wees. Sosiale kategorisering blyk in albei skoolkontekste ’n realiteit te wees en wit leerders blyk in albei skole as die hoëstatusgroep geëvalueer te word. Uit die resultate blyk dit dat daar geen noemenswaardige verband tussen die wit deelnemers se EI en hulle identiteitsonderhandeling binne ’n swart skoolkonteks bestaan nie, terwyl dit blyk of daar ’n geringe verband tussen die swart deelnemers se EI en hulle identiteitsonderhandeling binne ’n wit skoolkonteks bestaan. Daar blyk egter ’n sterk verband tussen deelnemers se EI en hulle aanpassing en funksionering binne hul meerderheidskoolkontekste te bestaan. Die volgende addisionele faktore (wat nie op EI betrekking het nie) wat moontlik ’n rol in die aanpassing en funksionering van rasseminderheidsgroepe in meerderheidskoolkontekste kan speel, is ook geïdentifiseer: huislike omstandighede, geloof, prestasie op sport en/of kulturele gebied en die ondersteuning van een of meer ouers. Copyright / Thesis (PhD)--University of Pretoria, 2010. / Educational Psychology / unrestricted

This work deals with computational modelling of static and dynamic analyses of journal bearings, with analyses of stability of oil-film motion and analyses of response of the rotor assemblies. At our workplace a new theoretical approach to the modelling of the static and dynamic behaviour of the rigid rotating body in liquid is used. The approach is based on the application of the Navier-Stokes motion eq., equation of continuity and boundary conditions eqs. It is possible to separate the motion of the rigid body and liquid from each other using suitable transformation relations and then it is also possible to separate the stationary and nonstationary motions from each other. A method of control volumes is used for these analyses. The real Bézier body is used for the description of the geometrical configuration and also for the approximation of velocity and pressure functions. Combined the ALE (Arbitrary Lagrange-Euler) method is used, because it´s necessary to generate a new net (to perform new meshing) for a change of the shaft position. The additional effects of the liquid (additional mass, stiffness and damping), which we solved in dynamic analysis, are the function of the single parameter only – the shaft-centre position. There is a large advantage in comparison with the standard approach, which is based on application of the Reynolds liquid eq. Author solving the models of the long and short journal bearing with different geometry, especially the elliptical and cylindrical bearings, with incompressible and compressible journal bearing liquid. If the journal bearing problem is solved, it is possible to include the additional effect of the liquid to the right side of the motion equation of a model rotor assembly. Author analyze a model rotor assemblies with two degrees of freedom, which is supported inside of the two journal bearings on the ends of the rotor (Jeffcott rotor assembly). Author modelling and solveing a response of the model rotor assembly on the forced steady-state vibrations, which was actuating by the unbalanced matter.

No description available.

The Swedish national plan for reapproval of hydropower describes that hydropower plants (HPPs) are required to be reassessed to ensure that modern environmental conditions are set for the permits. Since dams and HPPs create barriers for migrating fish and consequently disfavor biological diversity, one consequence of the national plan is that fishways are being constructed. This, in combination with an old, unfinished approval procedure from the 1960’s, resulted in the construction of three up- and downstream fishways in Mora municipality, at the HPPs in Spjutmo, Blyberg and Väsa. To fulfill requirements in regard to the fishway’s incline and safety, but at the same time minimize the need of space, the fishways have new, innovative and not yet tested design features. One of these features is the “parking garage” layout of the upstream fishway. Despite these features, the fishways take up a large amount of space and thus require large amounts of blasting, excavation and materials such as concrete and steel parts. These are climate impact influence intensive procedures and materials, but the construction has so far not been evaluated from a climate impact perspective. This, in combination with a lack of studies on the climate impact of fishways, has resulted in this project.The aim of this project was to examine the climate impact caused by the fishways in Spjutmo and Blyberg, to identify what affects the total climate impact as well as providing measures that could reduce the climate impact for future similar fishways. To provide an extensive overview of the climate impact that the fishways cause during their entire lifetime, the method life cycle analysis (LCA) was used. The construction of the fishways at Väsa HPP starts later than for Spjutmo and Blyberg, and therefore Väsa is excluded from the scope due to the lack of required information.The fishways in Spjutmo and Blyberg have the same design features, but the material consumptions differ due to their differences in head. Spjutmo’s head is 21,4 meter and Blyberg’s is 11 meter. A larger head generally results in a longer fishway which in turn results in a more material consuming construction. This resulted in the total life cycle climate impact being twice as big for Spjutmo as for Blyberg, 2 807 tonne CO2-eq respectively 1 361 tonne CO2-eq. The resource extraction is the LCA- phase that contributes the most. Concrete and its reinforcement have the biggest share of that impact, followed by mechanical parts and other steel products, road construction process in Spjutmo and the excavation process in Blyberg. Based on this result, it can be concluded that the materials and components contribute more to the fishways’ total climate impact, rather than processes. Roughly 80 % of the total climate impact origins from the upstream fishway, while the rest either stems from the downstream fishway or others. Sensitivity analyses include the climate impact caused by the fishways using some water that otherwise could have been used to generate electricity from, and the result indicates that all examined alternative energy sources would result in larger climate impact compared to if the electricity was generated by hydropower.One of the result’s uncertainties is that the fishways were under construction while this project was performed. Therefore some assumptions was made to compensate for lack of data. For example, the future electricity consumption was scaled up based off the then used electricity data. However, even if some amounts of required materials and processes changed as time went by, the changes did not make a significant difference from the bigger perspective. Sensitivity analyses that examined the climate impact of a delay in the construction also showed that the processes that are most likely to continue turned out to have a relatively small climate impact. Thus, this issue might not be as problematic as initially thought.Although the result is presented in total values, the result is also provided per a functional unit (FU) level in accordance with traditional LCA methodology. This was to facilitate a comparison for future LCAs on other fishways. The FU in this project was decided to be “One meter head for a technical, stationary, up- and downstream fishway in connection to a medium or large run-of-river hydropower plant in a cold tempered climate zone”. For future studies, LCAs on different types of fishways using the proposed FU is recommended.

No description available.

The study of people's capacity to remain healthy when exposed to constant stressors has long been the focus of research. Stress resistance research has focussed on the adaptive worth of successful coping strategies, certain personality characteristics as well as social support. Two concepts which have gained eminence as contributing to an individual's ability to deal effectively with life's stressors are: (1) Sense of coherence; and (2) Emotional intelligence. The aim of this study was to determine the possible relationship between sense of coherence and emotional intelligence. A once-off cross-sectional survey design was used. The sample population consisted of 54 South African marine officers serving in the merchant navy. The SOC-29 and the BarOn Emotional Intelligence Inventory (BarOn EQ-i) were used as measuring instruments. · Sense of coherence was positively related to emotional intelligence. The results showed that there is a correlation of large effect between total sense of coherence and total emotional intelligence (r = 0,73) in marine officers. The results also showed that there are correlations of large effect between the subscales of the SOC-29 and the BarOn EQi / Industrial and Organisational Psychology / M.A. (Industrial Psychology)

During recent decades, lumbar spinal stenosis (LSS) has become the most common indication for spine surgery, a change that coincides with a higher worldwide prevalence of overweight and obesity. Thus, surgical treatment of LSS in the overweight and obese population is common and increasing in scope. The overall aim of this thesis was to investigate whether body mass index (BMI) is related to the development of LSS, and whether BMI is linked to outcome after surgery for LSS. We further evaluated whether there are specific experiences of LSS from a patient perspective. Data were obtained for all patients registered in the Swedish Spine Register who had undergone surgery for LSS between January 1, 2006 and June 30, 2008. After adjusting for differences in baseline characteristics, patients with obesity showed both poorer results after surgery and a higher rate of dissatisfaction than patients with normal weight (odds ratio 1.73; 95% confidence interval, CI, 1.36-2.19). Furthermore, patients with obesity in the cohort reported modest weight loss at follow-up (2.0 kg; 95% CI, 1.5-2.4), and only 8% reported a clinical important weight loss 2 years after surgery. Our analysis of 389,132 construction workers, showed that overweight (incidence rate ratio, IRR 1.68; 95% CI, 1.54-1.83) and obesity (IRR 2.18; 95% CI, 1.87-2.53) were associated with an increased future risk in developing LSS when compared with patients with normal weight. To gain insight into the patients' perspective of LSS, we performed interviews with 18 patients who were on a waiting list for LSS surgery. The transcripts, analyzed with content analysis, revealed that living with LSS is a physical, mental and social challenge in which resources to cope with the condition are of major importance. In summary, obesity is associated with poorer results after surgery, and patients with obesity report modest weight loss during follow-up. In addition, obesity is associated with an increased risk to develop LSS. Our findings revealed that being a patient with LSS, naturally involves considerable suffering and pain, but it also implies being a person with his or her own resources who is able to cope with these adverse conditions.