120,146 research outputs found

    Ethics, professionalism and fitness to practise: three concepts, not one

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    The GDC's recent third interim edition of The first five years places renewed emphasis on the place of professionalism in the undergraduate dental curriculum. This paper provides a brief analysis of the concepts of ethics, professionalism and fitness to practise, and an examination of the GDC's First five years and Standards for dental professionals guidance, as well as providing an insight into the innovative ethics strand of the BDS course at the University of Glasgow. It emerges that GDC guidance is flawed inasmuch as it advocates a virtue-based approach to ethics and professionalism, and fails to distinguish clearly between these two concepts

    Liquid belt radiator design study

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    The Liquid Belt Radiator (LBR) is an advanced concept developed to meet the needs of anticipated future space missions. A previous study documented the advantages of this concept as a lightweight, easily deployable alternative to present day space heat rejection systems. The technical efforts associated with this study concentrate on refining the concept of the LBR as well as examining the issues of belt dynamics and potential application of the LBR to intermediate and high temperature heat rejection applications. A low temperature point design developed in previous work is updated assuming the use of diffusion pump oil, Santovac-6, as the heat transfer media. Additional analytical and design effort is directed toward determining the impact of interface heat exchanger, fluid bath sealing, and belt drive mechanism designs on system performance and mass. The updated design supports the earlier result by indicating a significant reduction in system specific system mass as compared to heat pipe or pumped fluid radiator concepts currently under consideration (1.3 kg/sq m versus 5 kg/sq m)

    Restructuring of Human Resource Management in the United States

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    [Excerpt] Change is endemic to market-based economies and consequently to the employment relationships embedded in them. Hence, it is yesterday\u27s news that the terms and conditions under which people work in the United States are changing. Historically, the pace of this change has varied. But the restructuring of capital assets eventually affects the relations between employees and employers

    Propagation Effects Handbook for Satellite Systems Design

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    This paper describes the latest edition of the NASA Propagation Effects Handbook for Satellite Systems Design and presents a summary of application of the handbook information to satellite link design and performance. NASA, which has supported a large part of the experimental work in radiowave propagation on space communications links, recognized the need for a reference handbook of this type, and initiated a program in the late 1970\u27s to develop and update a document that will meet this need. The Fifth Edition provides, in a single document, an update to two previous NASA handbooks; the fourth edition of a handbook which focused on propagation effects from 10 to 100 GHz (Ippolito, 1989), and the second edition of a companion handbook which covered propagation effects on satellite systems at frequencies below 10 GHz (Flock, 1987). This Fifth Edition covers the full range of radiowave frequencies that are in use or allocated for space communications and services, from nominally 100 MHz up to 100 GHz
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