108 research outputs found

    Understanding the Agency of Diversity Managers: A Relational and Multilevel Investigation.

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    PhDThis thesis aims to provide a critical realist account of diversity managers' agency, incorporating a critique of the existing diversity management research. A multilevel and relational analytical framework is offered in order to understand diversity managers' agency. The framework interpreted and operationalised Bourdieu's key concepts, `field', `habitus', `capitals' and `strategies' in the organisational context, for exploring and explaining macro, meso and micro level influences on the agency of diversity managers. The macro-social field of diversity management is mapped out by analysing data from an online national survey completed by diversity managers in the UK, and in-depth interviews with diversity managers of large public and private sector organisations. Then, findings of an extensive case study of Ford Motor Company, which includes company documentation and interviews with the company's diversity managers, are introduced to examine meso-organisational and micro-individual dynamics of diversity managers' agency. The analysis of the findings revealed that the agency of diversity managers is multilayered and complex. Whilst the boundaries of this agency are drawn by the deeply seated structures and mechanisms which are embedded in the fabric of social and organisational lives, diversity managers own varying degrees of social, cultural and symbolic capitals which are potential sources of power and influence, and they utilise strategies in order to activate this potential and widen the scope of their agency. The thesis addresses the limitations in diversity management literature, which are associated with dualisms of agency and structure, and qualitative and quantitative methods. It makes theoretical and methodological contribution by offering original empirical evidence generated through a multi-method strategy and analysing diversity managers' agency at the interplay of agentic and structural dynamics. It also offers policy makers at organisational and national levels a realistic understanding of diversity management processes that may inform design of more effective and progressive policies and initiatives.School of Business and Management Queen Mary University

    MRA of the Aorta and Peripheral Arteries

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    It can be argued that magnetic resonance angiography of the aorta and peripheral vessels has undergone more dramatic changes over the last couple decades than any other form of cardiovascular magnetic resonance imaging. The first useful clinical applications primarily used two-dimensional time-of-flight technology. However, in the mid-1990s, this approach was replaced to a large degree by contrast-enhanced techniques using conventional agents in dynamic, multiphase mode. Blood pool agents have also been developed for use in magnetic resonance angiography, but their precise role remains to be determined. Given the risks of gadolinium contrast in patients with renal failure, which is not an unusual concomitant in patients undergoing vascular evaluation, there has been a recent resurgence in interest in the use of non-contrast magnetic resonance angiographic approaches

    Cystic tumors of the pancreas: a radiological perspective

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    The purpose of this article is to highlight the imaging features of cystic pancreatic tumors. Common cystic pancreatic tumors include serous microcystic adenomas, mucinous cystic tumors, intraductal papillary mucinous neoplasms and solid pseudopapillary tumors. These tumors have characteristic imaging features, especially on magnetic resonance imaging (MRI) and MR cholangiopancreaticography examinations. Imaging findings allow a reasonable differential diagnosis between benign and malignant cystic pancreatic tumors. Thus, accurate imaging characterization of these lesions may lead to accurate patient care and prevent unnecessary surgical interventions

    Cross-sectional imaging of congenital and acquired abnormalities of the portal venous system.

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    Knowing the normal anatomy, variations, congenital and acquired pathologies of the portal venous system are important, especially when planning liver surgery and percutaneous interventional procedures. The portal venous system pathologies can be congenital such as agenesis of portal vein (PV) or can be involved by other hepatic disorders such as cirrhosis and malignancies. In this article, we present normal anatomy, variations, and acquired pathologies involving the portal venous system as seen on computed tomography (CT) and magnetic resonance imaging (MRI)

    Cystic tumors of the pancreas: a radiological perspective.

    No full text
    The purpose of this article is to highlight the imaging features of cystic pancreatic tumors. Common cystic pancreatic tumors include serous microcystic adenomas, mucinous cystic tumors, intraductal papillary mucinous neoplasms and solid pseudopapillary tumors. These tumors have characteristic imaging features, especially on magnetic resonance imaging (MRI) and MR cholangiopancreaticography examinations. Imaging findings allow a reasonable differential diagnosis between benign and malignant cystic pancreatic tumors. Thus, accurate imaging characterization of these lesions may lead to accurate patient care and prevent unnecessary surgical interventions

    The use of cryoablation in treating liver tumors.

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    Percutaneous image-guided tumor ablation techniques have been used as an alternative method for patients with unresectable liver tumors. Although all techniques avoid morbidity and mortality of major surgery and have advantage of preserving non-tumoral liver parenchyma, cryoablation currently is the only percutaneous ablation technique allowing intraprocedural monitoring because of visibility of its ablation effect with computed tomography and MRI. Cryoablation uses extremely low temperatures to induce local tissue necrosis to treat both primary and metastatic liver tumors. This article discusses the principles of liver tumor percutaneous cryoablation, including mechanisms of tissue injury, technique, equipment, image-guidance used, patient selection criteria, clinical outcome and complications as well as current trends and future goals
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