717 research outputs found

    Tilting table for ergometer and for other biomedical devices

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    The apparatus is for testing the human body in a variety of positions, ranging from the vertical to the supine, while exercising on an ergometer; and can also be used for angular positioning of other biomedical devices. It includes a floor plate and a hinged plate upon which to fix the ergometer, a back rest and a head rest attached at right angles to said hinged plate and behind the seat of the ergometer, dual hydraulic cylinders for raising and lowering the hinged plate through 90 deg by means of a self contained hydraulic system, with valve means for control and positive stops on the apparatus to prevent over travel. Tests can be made with the subject positioned on the seat of the ergometer, through the various angles, with a substantially normal body attitude relative to the seat and ergometer

    Tilt table for ergometers and other biomedical devices

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    Table adjusts to any position between horizontal and vertical. Apparatus includes - floor plate, plate hinged to floor plate, for carrying ergometer, hydraulic cylinder and piston on plate sides, linking them, hydraulic system, positive stops, padded backrest and headrest, one hand controls, and constraint system

    The Industry and the Unions: An Overview

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    [Excerpt] This overview chapter provides a framework for the chapters that follow by broadly describing the arts, entertainment, and electronic media (AEEM) industry and the problems confronting it. The overview is presented in four sections focused on: first, the economic structure of the industry; second, unions and bargaining structure; third, the impact of technological changes; and fourth, historical responses on the part of unions and the labor relations system to technological change

    Restraint system for ergometer

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    A restraint system for securing a person to an ergometer while exercising under zero gravity conditions or while operating the ergometer in earth environment in a position other than the upright position. A padded, form-fitting body belt fits around the operator's waist and suspenders are attached to the body belt. The body belt is secured to the ergometer forwardly and rearwardly of the ergometer seat by adjustable belts joined to the body belt and releasably hooked to the ergometer frame

    Looking Ahead

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    [Excerpt] The American entertainment industry and its system of labor-management relations is now at a crossroads. Its future will be determined to a great extent by emerging developments that could either hinder or facilitate expansion, depending on the course of affairs approaching the year 2000. The key trends will converge to influence the course of collective bargaining in the industry and the choices made by unions and employers

    Multimode ergometer system

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    System overcomes previous ergometer design and calibration problems including inaccurate measurements, large weight, size, and input power requirements, poor heat dissipation, high flammability, and inaccurate calibration. Device consists of lightweight, accurately controlled ergometer, restraint system, and calibration system

    Introduction

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    [Excerpt] There is perhaps no more visible segment of the American economy than the arts and entertainment sector. When the Writers guild engaged its members in a strike against the Alliance of Motion Picture and Television Producers in 1988, the popular culture of the vast majority of the American public was deeply affected. New television shows were delayed and the networks scrambled to find replacement programming. Virtually everyone was aware of the labor-management conflict, though probably not of its cause, and conscious of its impact on their lives. It could be argued that strikes in any of a half-dozen industries over the course of that year had less impact on the average American life, even though many times the number of workers were effected

    Manufacturer Liability for Harms Caused by Consumers to Others

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    This paper investigates whether manufacturers should be liable if consumers, through the use of a product, cause harm to others. If consumers have deep pockets then consumer-only liability is socially desirable. With consumer insolvency, however, consumer-only liability leads to inadequate consumer precautions, inadequate safety features, and excessive economic activity. With homogeneous insolvent consumers, the best rule is residual-manufacturer liability where the consumer bears primary responsibility and the manufacturer bears the shortfall in damages. When consumers\u27 willingness-to-pay is correlated with social harm they cause then residual-manufacturer liability distorts the market quantity. When consumers differ in their wealth then residual-manufacturer liability creates an inefficient cross-subsidization and an overprovision of safety features. In both cases, consumer-only liability may be preferred to residual-manufacturer liability. Applications, including gun manufacturer liability, are discussed

    Optimizing assessment of CD30 expression in Hodgkin lymphoma by controlling for low expression

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    Since the approval of brentuximab vedotin (BV), assessment of CD30 status by immunohistochemistry gained increasing importance in the clinical management of patients diagnosed with CD30expressing lymphomas, including classical Hodgkin lymphoma (CHL). Paradoxically, patients with low or no CD30 expression respond to BV. This discrepancy may be due to lack of standardization in CD30 staining methods. In this study, we examined 29 cases of CHL and 4 cases of nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL) for CD30 expression using a staining protocol that was designed to detect low CD30 expression levels, and an evaluation system similar to the Allred scoring system used for breast cancer evaluation. For CHL, 10% of cases had low scores and 3% were CD30 negative, with 3 cases in which the majority of tumor cells showed very weak staining. Unexpectedly, one of four cases of NLPHL was positive. We demonstrate intra-patient heterogeneity in CD30 expression levels and staining patterns in tumor cells. Three CHL cases with weak staining may have been missed without the use of control tissue for low expression. Thus, standardization of CD30 immunohistochemical staining with use of known lowexpressing controls may aid in proper CD30 assessment and subsequent therapeutic stratification of patients
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