2,081 research outputs found

    Enkele aspekte van die huidige posisie van die openbare rekenmeester en ouditeur

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    By hierdie geleentheid vra ek u aandag vir enkele aspekte van die posisie van die Openbare Rekenmeester en Ouditeur en sy werksaamhede onder huidige omstandighede

    The protection of personal and medical data - a call for confidentiality

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    Personal data and privacy are increasingly being threatened by a boom in technological development - the replacement of conventional networks of communication with the perfected combination of computer and telecommunications. The subsequent high degree of transparency has the potential to damage the individual's right to 'informational self-determination'. The most common ways of unlawfully entering a computer data system, the reasons why an individual's information is treated as confidential and the ethical issues involved, international and local statutory instruments that protect such personal information, and ways to stop the outflow of personal information are discussed

    Associations between the measures of physical function, risk of falls and the quality of life in haemodialysis patients : a cross-sectional study

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    Background Impaired physical function due to muscle weakness and exercise intolerance reduces the ability to perform activities of daily living in patients with end-stage kidney disease, and by consequence, Health-Related Quality of Life (HRQoL). Furthermore, the risk of falls is an aggregate of physical function and, therefore, could be associated with HRQoL as well. The present study examined the associations between objective and subjective measures of physical function, risk of falls and HRQoL in haemodialysis patients. Methods This cross-sectional multicentre study included patients on maintenance haemodialysis. Physical function (quadriceps force, handgrip force, Sit-to-Stand, and six-minute walking test), the risk of falls (Tinetti, FICSIT-4, and dialysis fall index) and HRQoL (PROMIS-29 and EQ-5D-3 L) were measured and analysed descriptively, by general linear models and logistic regression. Results Of the 113 haemodialysis patients (mean age 67.5 +/- 16.1, 57.5% male) enrolled, a majority had impaired quadriceps force (86.7%) and six-minute walking test (92%), and an increased risk of falls (73.5%). Whereas muscle strength and exercise capacity were associated with global HRQoL (R-2 = 0.32) and the risk of falls, the risk of falls itself was related to psycho-social domains (R-2 = 0.11) such as depression and social participation, rather than to the physical domains of HRQoL. Objective measures of physical function were not associated with subjective fatigue, nor with subjective appreciation of health status. Conclusions More than muscle strength, lack of coordination and balance as witnessed by the risk of falls contribute to social isolation and HRQoL of haemodialysis patients. Mental fatigue was less common than expected, whereas, subjective and objective physical function were decreased

    MENGELOLA KEUNGGULAN POSITIONING TOKO (STORE POSITIONING ADVANTAGE) (STUDI EMPIRIS : HYPERMART AMBON)

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    This study aims to test and analyze the effect of promotional discounts onstore image differentiation and store positioning advantage and its impact on theperformance of Ambon Hypermart stores. The sample in this study are consumerswho have visited Ambon Hypermart. Data was collected through distributingquestionnaires to 150 respondents using purposive sampling technique. While thedata analysis (Path Analysis).The results show that Promotional discounts have a positive andsignificant influence on Store Image Differentiation and Store PositioningAdvantages. It was also found that Store Image differentiation and StoreAdvantages had a positive and significant effect on the Performance of AmbonHypermart Store

    Evaluating the impact of VAT-free promotion:the role of loyalty program membership and category characteristics

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    This study examines the impact of value-added tax (VAT)-free promotions on sales performance. VAT-free promotions are a recently adopted form of price promotions where consumers are exempted from paying the VAT amount across almost all products in the assortment during a limited number of days. They are typically organized once per year and surrounded by a large amount of media attention from the involved retailer. To test the effects of this promotion on store and category sales, and investigate the differences between loyalty program (LP) members and non-LP members, the authors use scanner data from a Dutch durable goods retailer across a range of categories. The results show that VAT-free promotions positively impact store performance. Moreover, the findings indicate that more non-LP members are attracted to the store and that they increase the amount they spend in the store. While LP members also spend more in the store, this increase in shopping basket size does not compensate for the significant drop in the number of LP members that visit the store, leading to an overall decrease in sales coming from LP members during VAT-free days. We furthermore find that the positive effect of VAT-free promotions for non-LP members (rather than LP members) generalizes across all investigated categories. Our results provide key insights for retailers and direct marketers with regard to the effectiveness of VAT-free promotions in order to strategically segment the customer base

    Mannose-Specific Lectins from Marine Algae: Diverse Structural Scaffolds Associated to Common Virucidal and Anti-Cancer Properties.

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    To date, a number of mannose-specific lectins have been isolated and characterized from seaweeds, especially from red algae. In fact, man-specific seaweed lectins consist of different structural scaffolds harboring a single or a few carbohydrate-binding sites which specifically recognize mannose-containing glycans. Depending on the structural scaffold, man-specific seaweed lectins belong to five distinct structurally-related lectin families, namely (1) the griffithsin lectin family (beta-prism I scaffold); (2) the Oscillatoria agardhii agglutinin homolog (OAAH) lectin family (beta-barrel scaffold); (3) the legume lectin-like lectin family (beta-sandwich scaffold); (4) the Galanthus nivalis agglutinin (GNA)-like lectin family (beta-prism II scaffold); and, (5) the MFP2-like lectin family (MFP2-like scaffold). Another algal lectin from Ulva pertusa, has been inferred to the methanol dehydrogenase related lectin family, because it displays a rather different GlcNAc-specificity. In spite of these structural discrepancies, all members from the five lectin families share a common ability to specifically recognize man-containing glycans and, especially, high-mannose type glycans. Because of their mannose-binding specificity, these lectins have been used as valuable tools for deciphering and characterizing the complex mannose-containing glycans from the glycocalyx covering both normal and transformed cells, and as diagnostic tools and therapeutic drugs that specifically recognize the altered high-mannose N-glycans occurring at the surface of various cancer cells. In addition to these anti-cancer properties, man-specific seaweed lectins have been widely used as potent human immunodeficiency virus (HIV-1)-inactivating proteins, due to their capacity to specifically interact with the envelope glycoprotein gp120 and prevent the virion infectivity of HIV-1 towards the host CD4+ T-lymphocyte cells in vitro

    Cognitive decline and depressed level of consciousness in AIDS: Diagnosis

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    Cognitive decline and depressed level of consciousness in AIDS: Diagnosi
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