109 research outputs found

    Alumni perception of the NMMU computing sciences department

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    The success of a course offered by a university and the effectiveness of the instructors have commonly been measured by means of student evaluations. The feedback generated is typically used to identify instructors who need additional training, courses that need to be restructured or the need for financial rewards for those who excel. The principal objective of educating students is, knowledge, training and skills they can use and apply after graduating, regardless of the field of study. The perception of the Alumni about the extent of learning and the usefulness of the knowledge is a key measure for universities to assess their success. A service guarantee is defined as a formal promise made to customers about the service they will receive or it is a written promise made by the company through advertising or company literature that it will provide compensation if promises are broken. In order to ensure customer satisfaction in a service offering, the quality of service performance needs to be guaranteed. Many service industries promise a level of service performance, with or without conditions attached. Customer value is a complex concept as it is often interpreted with various meanings depending on the point of view adopted. A definition of customer value is the perceived value that the customer gains when purchasing a product or receiving a service. However, customer value can be used in a variety of contexts. The purpose of this research study is to measure the perception and satisfaction of Alumni of the Department of Computing Sciences and identify areas for improvement by performing a systematic analysis of the determinants of satisfaction. This research is an exploratory, quantitative study consisting of literature- and case-study components used to test proposed hypotheses. The literature study was performed on secondary sources to establish the key concepts related to the topics of Service Guarantee and Marketing, Stakeholder Theory, Customer-perceived Value and Alumni Perceptions. The empirical study consisted of surveys (questionnaires) completed by Alumni of the Department of Computing Sciences. The questionnaire used in this research consisted of questions regarding demographic data and questions regarding perceived perception of the Department of Computing Sciences and influencing factors. Descriptive statistics were used to summarise the data into a more compact form which could simplify the identification of patterns in the data. Inferential statistics were used to verify if conclusions made from the sample data could be inferred onto a larger population. Recommended university and teaching practices based on the statistical analysis of the survey results were identified. A model identified the following factors as having an influence on Alumni Satisfaction with the NMMU Department of Computing Sciences: Customer Satisfaction, Course Contents, Modern Technologies, Academic Staff, Admin. Staff, Departments, University Atmosphere and Perceived Value. The importance of each factor was identified to understand how to improve the Alumni perception. According to the inferential ranking of Alumni Satisfaction that ranks the factors on the average mean values, a factor that should be improved upon is the Alumni Network. Recommended improvements were suggested for the Department of Computing Sciences based on the statistical analysis of the survey results. Two sub-groups were defined by different levels of education and they were found to have different perceptions of the factors that were measured. It was shown that there are small and medium significant differences in only two of the factors of the proposed Alumni satisfaction model, distinguising through different levels of education. The Alumni Satisfaction model developed in this study specified the factors that influence Alumni Satisfaction with the Deptarment of Computing Sciences and the effect that each of these factors has on that satisfaction

    Recursive Graphical Solution of Closed Schwinger-Dyson Equations in phi^4-Theory -- Part1: Generation of Connected and One-Particle Irreducible Feynman Diagrams

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    Using functional derivatives with respect to the free correlation function we derive a closed set of Schwinger-Dyson equations in phi^4-theory. Its conversion to graphical recursion relations allows us to systematically generate all connected and one-particle irreducible Feynman diagrams for the two- and four-point function together with their weights.Comment: Author Information under http://www.physik.fu-berlin.de/~pelster

    Quasi-one-dimensional antiferromagnetism and multiferroicity in CuCrO4_4

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    The bulk magnetic properties of the new quasi-one-dimensional Heisenberg antiferromagnet, CuCrO4_4, were characterized by magnetic susceptibility, heat capacity, optical spectroscopy, EPR and dielectric capacitance measurements and density functional evaluations of the intra- and interchain spin exchange interactions. We found type-II multiferroicity below the N\'{e}el temperature of 8.2(5) K, arising from competing antiferromagnetic nearest-neighbor (JnnJ_{\rm nn}) and next-nearest-neighbor (JnnnJ_{\rm nnn}) intra-chain spin exchange interactions. Experimental and theoretical results indicate that the ratio Jnn/JnnnJ_{\rm nn}/J_{\rm nnn} is close to 2, putting CuCrO4_4 in the vicinity of the Majumdar-Ghosh point.Comment: 9 pages, 8 figures, submitted to PR

    Guanosine stimulates neurite outgrowth in PC12 cells via activation of heme oxygenase and cyclic GMP

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    Undifferentiated rat pheochromocytoma (PC12) cells extend neurites when cultured in the presence of nerve growth factor (NGF). Extracellular guanosine synergistically enhances NGF-dependent neurite outgrowth. We investigated the mechanism by which guanosine enhances NGF-dependent neurite outgrowth. Guanosine administration to PC12 cells significantly increased guanosine 3-5-cyclic monophosphate (cGMP) within the first 24 h whereas addition of soluble guanylate cyclase (sGC) inhibitors abolished guanosine-induced enhancement of NGF-dependent neurite outgrowth. sGC may be activated either by nitric oxide (NO) or by carbon monoxide (CO). \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} NωN^{\omega } \end{document}-Nitro-l-arginine methyl ester (l-NAME), a non-isozyme selective inhibitor of nitric oxide synthase (NOS), had no effect on neurite outgrowth induced by guanosine. Neither nNOS (the constitutive isoform), nor iNOS (the inducible isoform) were expressed in undifferentiated PC12 cells, or under these treatment conditions. These data imply that NO does not mediate the neuritogenic effect of guanosine. Zinc protoporphyrin-IX, an inhibitor of heme oxygenase (HO), reduced guanosine-dependent neurite outgrowth but did not attenuate the effect of NGF. The addition of guanosine plus NGF significantly increased the expression of HO-1, the inducible isozyme of HO, after 12 h. These data demonstrate that guanosine enhances NGF-dependent neurite outgrowth by first activating the constitutive isozyme HO-2, and then by inducing the expression of HO-1, the enzymes responsible for CO synthesis, thus stimulating sGC and increasing intracellular cGMP

    The foreign exchange risk management of multinational corporations and financial innovations

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    This thesis is concerned with the foreign exchange risk management of multinational corporations (MNCs). It aims to ascertain whether and to what extent MNCs can make efficient use of financial innovations in order to achieve their exchange risk management objectives. [Continues.

    THE DETERMINANTS OF SELECTIVE EXCHANGE RISK MANAGEMENT-EVIDENCE FROM GERMAN NON-FINANCIAL CORPORATIONS

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    Survey studies of both corporate exchange risk management and the corporate use of derivatives in general have shown considerable variation in managerial practices. Some firms do not hedge open positions at all, and some hedge their exposures completely. Most companies, however, hedge only those positions on which they expect a currency loss, while leaving open positions on which they expect a currency gain-a practice known as "selective hedging." Finally, there is a small minority of firms that engage in outright speculation, deliberately creating risk exposures in addition to those arising from their normal business operations. 2002 Morgan Stanley.

    Risk Management Practices of German Firms

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    Identifies some gaps in corporate risk management research and presents a study of risk management practices in large, non-financial German firms. Compares the perceived relevance of different types of risk with the intensity of their management and reports that no respondents admitted major difficulty in developing a risk management system. Finds that firm survival is rated as the top goal of risk management, that respondents are closer to risk-neutral than risk-averse for financial risks, that around half centralize treasury management and 88 per cent use derivatives. Ranks the types of derivatives used and the importance of associated problems; shows how foreign exchange risk, US $ exposure and interest rate risk are managed; and assesses attitudes towards foreign exchange and interest rate risk management. Considers consistency with other research and calls for more

    Compliance with Disclosure Requirements at Germany\u27s New Market: IAS Versus US GAAP

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    This research examines compliance with both International Accounting Standards (IAS) and United States Generally Accepted Accounting Principles (US GAAP) for companies listed on Germany\u27s New Market. Based on a sample of 100 firms that apply IAS and 100 that apply US GAAP, we investigate the extent to which companies comply with IAS and US GAAP disclosure requirements in their year–2000 financial statements. Compliance levels range from 100% to 41.6%, with an average of 83.7%. The average compliance level is significantly lower for companies that apply IAS as compared to companies applying US GAAP. This study provides the first systematic evidence regarding the enforcement of US GAAP outside the US, and accordingly not subject to Securities Exchange Commission (SEC) review. The results unveil a considerable extent of non–compliance. The overall level of compliance with IAS and US GAAP disclosures is positively related to firms being audited by Big 5 auditing firms and to cross–listings on US exchanges. Compliance is also associated with references to the use of International Standards of Auditing (ISA) or US GAAS in the audit opinion. The findings add to the growing concerns regarding the lack of effective supervision in the German capital market
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