107 research outputs found

    The Modern Doctor: Unraveling the Practices of Residency Training Reform

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    Scheele, F. [Promotor]Meurs, P.L. [Promotor]Bont, A. de [Copromotor

    Verschuivende verhoudingen

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    Overgewicht is in relatief korte tijd veranderd van een individueel gezondheidsprobleem in een volksgezondheidsprobleem. Dit is gepaard gegaan met een groeiende roep om overheidsbemoeienis in de vorm van wet- en regelgeving. Maar wat vermag de overheid? In dit essay onderwerpen we de roep om overheidsingrijpen aan een kritische reflectie. Hoewel de overheid een grondwettelijke verantwoordelijkheid heeft voor de publieke gezondheid, leert de geschiedenis van andere leefstijlgerelateerde problemen ons dat de overheid zich in een paradoxale situatie bevindt. Enerzijds kan ze in instrumentele zin veel doen – ze beschikt immers over een uitgebreide gereedschapskist met juridische en economische beleidsinstrumenten. Anderzijds wordt de overheid vaak in haar handelingsruimte beperkt doordat dat beleidsinstrumentarium maatschappelijk omstreden is

    The effects of deoxycholate and sodium dodecyl sulphate on the serological reactivity of antigens isolated from six Bacteroides reference strains

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    Abstract The detergents sodium dodecyl sulphate (SDS) and sodium deoxycholate (NaD) are frequently used as solvents for macromolecular polysaccharide complexes in immunochemical and serological techniques. The influence of the disaggregating surfactants on the serological reactivity of endotoxins isolated from six serotype specific reference strains of the Bacteroides fragilis group was investigated by comparing haemagglutinating and precipitating reactivities of antigen solutions in phosphate buffered saline (PBS), NaD and SDS. All antigens were phenol/water extracted endotoxins. Solutions of antigens isolated from serotypes A, B, C and D in PBS exhibited mainly serotype specificity and a few well known low-titer cross reactions; solutions in NaD showed additional cross reactivity, which was enhanced by solubilization of the antigens in SDS. In immunoelectrophoresis endotoxins isolated from serotypes A and C and dissolved in NaD or SDS showed additional precipitation lines compared to solutions of the same antigens in PBS. These changes in the serological reactivity are of relevance for investigations where the serological specificty of antigens is in question

    Release of tumor necrosis factor-alpha and prostanoids in whole blood cultures after in vivo exposure to low-dose aspirin.

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    BACKGROUND: The preventive effect of low-dose aspirin in cardiovascular disease is generally attributed to its antiplatelet action caused by differential inhibition of platelet cyclooxygenase-1. However, there is evidence that aspirin also affects release of inflammatory cytokines, including tumor necrosis factor-alpha (TNF-alpha). It is not known whether this is caused by direct action on the cytokine pathway or indirectly through cyclooxygenase inhibition and altered prostanoid synthesis, or both. METHODS: We assessed the capacity of lipopolysaccharide-activated leukocytes in whole blood cultures of eight healthy subjects following a single oral dose of 80 mg aspirin to release TNF-alpha, prostanoid E2 (PGE2) and prostanoid I2 (PGI2), and thromboxane A2 (TXA2). TNF-alpha and prostanoids were determined by enzyme-linked immunoassays. RESULTS: In seven subjects, TNF-alpha release in blood cultures decreased 24h after intake of aspirin. The effect of aspirin on prostanoid release was assessed in three individuals: PGE2 increased in all subjects, PGI2 increased in two and remained unchanged in one, and TXA2 was reduced in two and unchanged in one individual The presence of DFU, a specific inhibitor of cyclooxygenase 2, did not affect the reduction of TNF-alpha release by aspirin, but abolished prostanoid production in all three individuals. Conclusion: The capacity of activated leukocytes to release TNF-alpha is reduced by ingestion of low-dose aspirin, independent of changes in prostanoid biosynthesis

    Detection of Bacteroides fragilis endotoxin in amniotic fluid by counterimmunoelectrophoresis

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    The ability of counter immunoelectrophoresis (CIE) to detectBacteroides fragilis endotoxin in amniotic fluid in small concentrations was evaluated. A method was developed which, in combination with ultrafiltration, permits detection ofB. fragilis endotoxin in amniotic fluid in a concentration of 40 ng/ml or more. The sensitivity threshold was reduced to 2 ng/ml by using a highly reactive IgG-fraction isolated from rabbit anti-B. fragilis IPL E 323 antiserum

    The gaming healthcare practitioner: How practices of datafication and gamification reconfigure care

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    This article explores how datafication, as an increasing use of quantified performance data (e.g. performance indicators, rating sites), and social media are enacted in everyday healthcare practice. Drawing on the literature about the quantified self, this article shows that datafication evokes practices of gamification: the application of frames of play and rewards to the healthcare setting. We discern three (intermingling) practices of gamification: adapting, ignoring and changing. 'Adapting' refers to the incorporation of quantifying features in healthcare, while 'ignoring' sheds light on how practitioners seek to circumvent quantifying mechanisms. Change refers to how practitioners actually embrace quantifying mechanisms in order to extend (and improve) their work and to highlight their quantified professional self. We elucidate how datafication of healthcare 'opens up' and reconfigures established practices of organizing care and caring - not only for the patient but also to (re)craft the professional clinical identity

    Repairing reforms and transforming professional practices

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    Although much has been written on changing professionalism, only limited attention has been given to the way in which professionals themselves give shape to new requirements in everyday professional practice. This article investigates the understudied reform of postgraduate medical education. The reform takes in a shift from apprenticeship-based training based on “learning-by-doing” and socialization to time-restricted, streamlined, competency-based training programs based on competency-based training and standardized performance assessment. We deploy a mixed-methods study design of surgical training reform in the Netherlands (2011-2012) to examine how surgeons and surgical residents give shape to changes in education as well as in the wider hospital context, and how this impact on surgical training from a micro perspective. Informed by sociological literatures on medical education and changing professionalism, this article reveals how the reform is repaired in everyday training practice. This repair work, as a form of institutional work, goes beyond restoring disrupted institutional arrangements in order to restore the status quo as is often argued. Instead, it involves acting with the reform; seeking feasible solutions that preserve old values and related practices while adopting new requirements that reconfigure institutionalized arrangements in professional training practices

    The balancing act of organizing professionals and managers: An ethnographic account of nursing role development and unfolding nurse-manager relationships

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    Scholars describe organizing professionalism as ‘the intertwinement of professional and organizational logics in one professional role’. Organizing professionalism bridges the gap between the often-described conflicting relationship between professionals and managers. However, the ways in which professionals shape this organizing role in daily practice, and how it impacts on their relationship with managers has gained little attention. This ethnographic study reveals how nurses shape and differentiate themselves in organizing roles. We show that developing a new nurse organizing role is a balancing act as it involves resolving various tensions concerning professional authority, task prioritization, alignment of both intra- and interprofessional interests, and internal versus external requirements. Managers play an important yet ambiguous role in this development process as they both cooperate with nurses in aligning organizational and nursing professional aims, and sometimes hamper the development of an independent organizing nursing role due to conflicting organizational concerns

    Performance regulation in a networked healthcare system: From cosmetic to institutionalized compliance

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    This article studies the role of a public regulator in managing the performance of healthcare professionals. It combines a networked governance perspective with responsive regulation theory to show the mechanisms that have added to significant changes in medical cost management in the Netherlands. In a five‐year period, hospital practices transitioned from cosmetic compliance with performance regulation and strategic upcoding to institutionalized compliance more in line with regulatory goals. The article demonstrates how policy changes transformed incentive structures, introduced new forms of accountability, and added actors to the network with technocratic disciplining tasks. The networked character of performance regulation offered opportunities for a responsive, non‐coercive regulatory strategy that engaged various actors in a regulatory conversation about strategic coding. Responsive regulation can reduce strategic responses to performance regulation and manage the gap between administrative and clinical logics. The case study contributes to our understanding of the effectiveness of responsive, non‐punitive regulation in networked settings
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