The project focus has been development of guidelines and methods for upper extremity injury reduction in car crashes. The safety of the central body parts improves which indicates the need to develop methods for avoiding non-life threatening injuries such as fracture of the arms. The purpose of the project was to study the injury mechanisms for the upper extremity in car crashes, and the aim has been to propose methods to reduce the injuries. The project focuses on adult occupants inside the vehicles front seat, and frontal and side impacts. The procedure began with understanding and identifying the injury mechanisms. Studies show that most fractures occur on the forearm (radius and ulna) and on the wrists and hands. To determine which injury mechanisms that were most frequent, data were collected from 29 computer simulations with 29 different crash scenarios. The most common kind of impact was the medial part of the wrist in the central part of the instrument panel, combined with the impact of the elbow in the center consol. The results of the simulations created a basis for the method of the component test, with focus on the injury mechanism i.e. the forward movement of the arms into the instrument panel. The component test consisted of a test rig, on which was mounted with a measuring arm of a 50th percentile male dummy. The arm dropped into a block of expanded polypropylene (EPP-block) for observation and study, and with following variable parameters: the impact angle of the surface, velocity and position of the wrist. Then also an instrumented measuring arm from a 5th percentile female dummy was released into an instrument panel. The project contributes to knowledge about the injury mechanism of the upper extremity in car crashes. The most frequent injury mechanism is a forward movement of the arms resulting in an impact with the interior structure of the car. The most frequent injured region is the distal part of the upper extremity. The project has developed and suggested the first step to a test method for the specific injury mechanism. There is a need of more research on how impact angles and velocity affect the violence on the arm.

Thesis (M.Ing.)--Stellenbosch University, 2001. / ENGLISH ABSTRACT: A road safety remedial programme has as an objective the improvement of road transportation safety by applying road safety engineering remedial measures to hazardous road network elements in a manner that will be economically efficient. Since accident data is the primary manifestation of poor safety levels it must be analysed in manner that will support the overall objective of economic efficiency. Three steps in the process of implementing a road safety remedial programme, that rely on the systematic analysis of accident data, are the identification of hazardous locations, the ranking of hazardous locations and the evaluation of remedial measure effectiveness. The efficiency of a road safety remedial programme can be enhanced by using appropriate methodologies to measure safety, identify and rank hazardous locations and to determine the effectiveness of road safety remedial measures. There are a number of methodologies available to perform these tasks, although some perform much better than other. Methodologies based on the Empirical Bayesian approach generally provide better results than the Conventional methods. Bayesian methodologies are not often used in South Africa. To do so would require the additional training of students and engineering professionals as well as more research by tertiary and other research institutions. The efficiency of a road safety remedial programme can be compromised by using poor quality accident data. In South Africa the quality of accident data is generally poor and should more attention be given to the proper management and control of accident data. This thesis will report on, investigate and evaluate Bayesian and Conventional accident data analysis methodologies. / AFRIKAANSE OPSOMMING: Die doel van 'n padveiligheidsverbeteringsprogram is om op die mees koste effektiewe manier die veiligheid van onveilige padnetwerkelemente te verbeter deur die toepassing van ingenieursmaatreëls. Aangesien padveiligheid direk verband hou met verkeersongelukke vereis die koste effektiewe implementering van 'n padveiligheidsverbeteringsprogram die doelgerigte en korrekte ontleding van ongeluksdata. Om 'n padveiligheidsverbeteringsprogram te implementeer word die ontleding van ongeluksdata verlang vir die identifisering en priortisering van gevaarkolle, sowel as om die effektiwiteit van verbeteringsmaatreëls te bepaal. Die koste effektiwiteit van 'n padveiligheidsverbeteringsprogram kan verbeter word deur die regte metodes te kies om padveiligheid te meet, gevaarkolle te identifiseer en te prioritiseer en om die effektiwiteit van verbeteringsmaatreëls te bepaal. Daar is verskeie metodes om hierdie ontledings te doen, alhoewel sommige van die metodes beter is as ander. Die 'Bayesian' metodes lewer oor die algemeen beter resultate as die gewone konvensionele metodes. 'Bayesian' metodes word nie. in Suid Afrika toegepas nie. Om dit te doen sal addisionele opleiding van studente en ingenieurs vereis, sowel as addisionele navorsing deur universiteite en ander navorsing instansies. Die gebruik van swak kwaliteit ongeluksdata kan die integriteit van 'n padveiligheidsverbeteringsprogram benadeel. Die kwaliteit van ongeluksdata in Suid Afrika is oor die algemeen swak en behoort meer aandag gegee te word aan die bestuur en kontrole van ongeluksdata. Die doel van hierdie tesis is om verslag te doen oor 'Bayesian' en konvensionele metodes wat gebruik kan word om ongeluksdata te ontleed, dit te ondersoek en te evalueer.

published_or_final_version / Sports Science / Master / Master of Science in Sports Science

published_or_final_version / Pathology / Master / Master of Philosophy

No description available.

Basketball continues to increase in popularity worldwide as a participation sport at all levels of play, from recreational to professional. Each year, more than 1.6 million basketball-related injuries are treated in hospitals, doctor's offices and emergency rooms in North America. In Rwanda, basketball and volleyball are the second popular sports, following football. The aim of the study was to investigate the prevalence, mechanisms, nature and management of basketball-related injuries in Rwanda.

Local government, as government at grassroot, has, probably undergone transformation more than any institution in post-1994 South Africa. State-of the- art legislation have been passed that have restructured municipalities, and, especially, in the areas of performance and conduct of councillors and officials. Prominent in the areas of transformation are the roles of the Executive Mayor, which are no longer ceremonial as well as the radical changes which have been legislated in municipal financial management. This study was undertaken to determine the challenges that confront the Executive Mayor in financial management in selected local municipalities in the Free State. The hypothesis was formulated that “despite the state-of-the art legislation to regulate municipal finance, Executive Mayors in municipalities face the challenge of poor service delivery as a result of noncompliance to financial statutes due to human resource incapacity”. To test the hypothesis, use was made by empirical research that comprised questionnaires completed by sample of managers and officials in the selected local municipalities of Mafube, Metsimaholo, Moqhaka and Ngwathe.The findings, amongst others, were that: • Human capital in the 4 selected local municipalities are in their prime age. 69 present of managers are in the aged between 30 years to 50 years; • 57 present of the managers responded that they have adequate qualifications and training to pursue the challenges in municipal finance; • All 4 municipalities normally get their budgets approved as required by compliance. • The hypothesis was consequently, invalidated. The study ends with recommendations to help improve standards and quality of financial management practice in the 4 municipalities. / MA (Industrial Psychology), North-West University, Vaal Triangle Campus, 2014

In recent years, a number of advanced Information and Communication Technology (ICT) solutions have been developed to assist in the management of business processes and working environments. Radio Frequency Identification (RFID) tagging technology and mobile computing are two such technologies which have been adopted for use in hybrid systems because they can monitor and manage industrial health, safety and welfare activities.

The underground hard rock mining industry in South Africa is faced with the challenge of simultaneously delivering both safety and productivity excellence. Frontline supervisors need to manage the inherent trade-off between safety and productivity to achieve excellence in both. Previous research suggests that supervisors with a transformational leadership style have delivered safety and productivity in separate studies. This study examined the relationship between the transformational leadership style of underground mining supervisors at Impala and the simultaneous delivery of both safety and productivity. It also investigated the mediating effect of group safety climate on the relationship between transformational leadership and injury rate, and the mediating effect of group cohesiveness on the relationship between transformational leadership and productivity. The relationship between transformational leadership and the perception of leader effectiveness was also investigated in the study context. The research design was a case study using mixed methods in the form of a sequential explanatory design. In the first quantitative main phase of the study, survey questionnaires were completed by respondents to determine the leadership style of the mine overseers who were the unit of analysis. Data was also collected using survey questionnaires for group safety climate and group cohesiveness. The injury rate and productivity data for the mine overseer sections was recorded for a one year period prior to the survey. In the second qualitative phase of the study selected mine overseers were interviewed and a focus group of mine overseers was conducted. Also, underground observations were carried out and documents were scrutinised. The focus of the qualitative research was to interpret and explain the results that were obtained in the quantitative first phase of the study. The results indicate that transformational leadership is related to the perception of supervisors’ effectiveness. This relationship is partially mediated by group safety climate and group cohesiveness. The relationship between transformational leadership and the objective measures of injury vi rate and productivity were not supported in the quantitative results. This may indicate that these measures were too narrow to determine supervisors’ leadership effectiveness, and/or were contaminated by confounding variables as was suggested in the qualitative phase of the study. The qualitative findings indicated that supervisors’ perception was that transformational leadership style is effective in delivering safety and productivity excellence. The overall conclusion of this study is that in the context of Impala or similar operations, that the effective supervisor should employ the full range of leadership. This behaviour includes maintaining discipline and using contingent reward to motivate the achievement of goals. The effective supervisor also uses the transformational leadership style giving meaning to work and creating a feeling of team membership. Transformational leadership inspires the diverse workforce to deliver safety and productivity excellence in the difficult and risky mining conditions. Furthermore, supervisors’ behaviour is greatly influenced by management’s priorities. / Business Management / D. B. L.

Förtöjningsarbete är ett rutinarbete ombord på de flesta fartyg vid ankomster och avgångar men det är även sett som ett riskfyllt arbete med olyckor till följd. Syftet med det här examensarbetet är att undersöka varför det fortätter ske allvarliga olyckor i samband med förtöjning trots att det är ett rutinjobb. Genom att göra dokumentanalys av olycksfallsrapporter med hjälp av analysmodellen HFACS-MA har 24 olycksfallsrapporter analyserats. Modellen är framtagen som en ram för mänskliga och organisatoriska orsaker och faktorer. Faktorerna från rapporterna placerades i fem olika nivåer. Resultatet av analysen visar att den största bidragande faktorn är förutsättningarna, i arbetet även kallat ”Preconditions”, för besättningarna. Bland annat förtöjningstrossar som varit i dåligt skick och därför brustit, vilket i vissa fall lett till dödsfall eller allvarliga skador. Resultatet visar också att faktorer som misstag och bristande uppmärksamhet har lett till allvarliga olyckor. För att se vad som reglerar förtöjningsarbetet undersöktes gällande regelverk och rekommendationer. Det konstaterades att som det är idag finns inte tillräckligt utförliga bestämmelser om hur ett säkert förtöjningsarbete ska gå till. / Mooring is an routine work onboard most vessels when arriving or departing a port but it is also considered a hazardous work task that have led to some very serious accidents. The purpose of this paper is to try to understand why these serious accidents continue to happen. 24 accident reports have been analysed using the HFACS-MA model. The model is developed as a framework for human and organisational causes and factors, where the causes and factors were placed in five different levels. The result shows that the largest contributing factor is the ”Preconditions”, especially considering the material such as mooring ropes that were in poor condition and therefore leading to failure and in some cases the rope parted and killed or seriously injured the crew member. The result also shows that human factors such as mistakes and lack of attention have caused serious accidents. Additionally this study examines the existing regulations and recommendations concerning mooring operations and it becomes clear that these are not thorough enough to ensure a safe working routine onboard.