1,721,103 research outputs found

    1st Annual DST/Mintek Nanotechnology Innovation Centre - Sensors Workshop Grahamstown, 11th & 12th September 2008

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    1st Annual DST/Mintek Nanotechnology Innovation Centre - Sensors Workshop Grahamstown, 11th & 12th September 200

    1st Annual DST/Mintek Nanotechnology Innovation Centre - Sensors Workshop Grahamstown, 11th & 12th September 2008

    No full text
    1st Annual DST/Mintek Nanotechnology Innovation Centre - Sensors Workshop Grahamstown, 11th & 12th September 200

    1st Annual DST/Mintek Nanotechnology Innovation Centre - Sensors Workshop Grahamstown, 11th & 12th September 2008

    No full text
    1st Annual DST/Mintek Nanotechnology Innovation Centre - Sensors Workshop Grahamstown, 11th & 12th September 200

    The development of an online amperometric technique to measure free and WAD cyanide in gold plant leach liquors and effluent streams

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    Includes synopsis.Includes bibliographical references.In 2004, Mintek recognised the gold mining industry‘s need for an online free and WAD cyanide measurement device and went about extending the existing free cyanide analyser,the Cynoprobe to include WAD cyanide measurement. The WAD cyanide analysis technique was to be based on ligand exchange, which required the selection of an appropriate reagent,with amperometric finish. Thereafter, the technique was validated in the laboratory to include the capabilities of the prototype instrument in terms of accuracy and precision (0.5-100 ppm WAD CN). Various local trials were conducted in order to validate the measurement and the robustness of the instrument in an industrial environment. Successful trials (<10% error with respect to laboratory analysis) led to international application and exposure to complex ore types and process solutions

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    An investigation into employee perception on the role of motivation in perfomance appraisal : the case of Mintek Company

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    Thesis (MBA) North-West University, Mafikeng Campus, 2010This dissertation investigates the employee perception on the role of motivation in performance appraisal at Mintek. It highlights major problems of the current performance appraisal system) delineating the weakness and pitfalls of the current performance appraisal system. Performance appraisal can be a good way for organisations to boost employee's motivation and hone their competitive edge. However creating useful performance appraisal and making sure they are used effectively throughout an organisation is not easy. After a review of the literature relevant to performance management systems both over time and across different types of organisations, this dissertation confines its research to Mintek. The relevant literature has been visited and served as a secondary data that add value to the dissertation. Collation of the relevant data is followed by a discussion of the employee perception and the role of motivation in performance appraisal. The relative lack of research on employee perceptions on the role of motivation is the primary impetus of this study, which advances this important, but neglected research area by investigating potential predictors and consequences of role of motivation and perceptions with performance appraisal. The sample was drawn from Mintek employees who were cooperative in the execution of the study. As a result of this, the research on the subject has moved beyond limited confines of measurement issues and accuracy of performance ratings and has begun to focus more on motivational aspects of performance appraisal. The performance appraisal are intended to enhance overall organisational performance. unfortunately ongoing problems with performance appraisal can create challenges in trying to study relationships between individual performance and organisational performance. The findings of this study revealed that there is deficiency in performance appraisal supervisors are not properly trained, performance management system is not efficient and supervisors do not show concern. Mintek should improve its method of performance appraisal based on managers and supervisors knowledge and number of dimensions being appraised; look at the conclusion and recommendations made in this dissertation.Master

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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