1,720,970 research outputs found
Internal risk financing with special reference to contingency funds
Get PDFCITATION: Mostert, F. J. 2003. Internal risk financing with special reference to contingency funds. South African Journal of Economic and Management Sciences, 6(2):a3314, doi:10.4102/sajems.v6i2.3314.The original publication is available at https://sajems.orgEnterprises can manage risks in two fundamental ways, namely by physical risk control and by risk financing. The latter comprises external and internal risk financing. As this paper focuses on the latter of these concepts, due attention is paid to the main forms of internal risk financing. Charging losses to current operating profit, arranging loan facilities and implementing equity financing programmes are different forms of internal risk financing. The nature, advantages and various types of captive insurance companies are considered as holding companies can utilise this form of internal risk financing. Special attention is paid to the use of contingency funds as a way of internal risk financing by applying a modelling approach. The conclusions reached should be valuable to business enterprises in particular, but also to non-profit organisations and individuals.https://sajems.org/index.php/sajems/article/view/3314Publisher's versio
Importance of external environmental labour-related risk factors for financial investment decision-making
Get PDFCITATION: Mostert, J. H., Steel, S. J. & Mostert, F. J. 2002. Importance of external environmental labour-related risk factors for financial investment decision-making. South African Journal of Economic and Management Sciences, 5(3):a2746, doi:10.4102/sajems.v5i3.2746.The original publication is available at https://sajems.orgExternal environmental labour-related risk factors influence the relationship between management and the work force of an enterprise. It is therefore of prime importance to consider these labour-related risk actors in order to be able to take a comprehensive financial investment decision. The risk factors concerned come from the political, economic, social and technological environments. The views of the participating investment practitioners (who are active in the long-term insurance industry) regarding these aspects are analysed against the background of relevant literature. The responses with reference to these labour-related risks in manual and knowledge worker enterprises are presented simultaneously and significant similarities and differences are highlighted.Publisher's versio
Portfolio management practices of investment practitioners active in the long-term insurance industry
Get PDFCITATION: Mostert, J. H., Steel, S. J. & Mostert, F. J. 2001. Portfolio management practices of investment practitioners active in the long-term insurance industry. South African Journal of Economic and Management Sciences, 4(2):a2647, doi:10.4102/sajems.v4i2.2647.The original publication is available at https://sajems.orgIn the long-term insurance industry, sound financial investment decisions depend largely on the portfolio management practices of the investment practitioners concerned. The ability of the investment practitioners to make well-informed decisions, as well as the strategies and policies underlying portfolio management practices, are the main issues of this research. Important correlations amongst various aspects of the financial investment decisionmaking process, as well as their association with the general information pertaining to the long-term insurers (which were disclosed during the empirical study), emerge in the closing section of this paper. The conclusions should be of prime interest to long-term insurers as well as investment practitioners who are working in that industry.https://sajems.org/index.php/sajems/article/view/2647Publisher's versio
Investigation on the Influence of the Initial RDX Crystal Size on the Performance of Shaped Charge Warheads
Get PDFCITATION: Majiet, F. & Mostert, F. J. 2019. Investigation on the influence of the initial RDX crystal size on the performance of shaped charge warheads. Defence Technology, 15:802-807, doi:10.1016/j.dt.2019.07.008.The original publication is available at https://www.sciencedirect.comCopper lined wave shaped shaped charges of particular design and liner metallurgy were used to investigate the effect of explosive crystal size on the resultant shaped charge jet parameters. Composition A3 with RDX of three different average crystal sizes, i.e. 30 μm, 100 μm and 300 μm were used in the investigation. All other parameters in the charge were kept constant and in particular, care was given to obtain consistent dimensional quality and liner microstructure, in order to prohibit the variation of other parameters. Specific flash-X-ray diagnostics were used in field tests to obtain the jet parameters from multiple firings of similar charges. It is found that the varying crystal size of the RDX has a marginal influence in the total jet length of the jets. However, it is also found that there is less variation between firings in the jet parameters for jets from the charges loaded with the crystal size of 100 μm.https://www.sciencedirect.com/science/article/pii/S2214914719301850Publisher's versio
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“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
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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