Beam Induced Electron Cloud Resonances in Dipole Magnetic Fields

The buildup of low energy electrons in an accelerator, known as electron cloud, can be severely detrimental to machine performance. Under certain beam conditions, the beam can become resonant with the cloud dynamics, accelerating the buildup of electrons. This paper will examine two such effects: multipacting resonances, in which the cloud development time is resonant with the bunch spacing, and cyclotron resonances, in which the cyclotron period of electrons in a magnetic field is a multiple of bunch spacing. Both resonances have been studied directly in dipole fields using retarding field analyzers installed in the Cornell Electron Storage Ring (CESR). These measurements are supported by both analytical models and computer simulations

Women\u27s experiences of the workers\u27 compensation system in Queensland, Australia

This was a phenomenological study undertaken to understand women\u27s experience of the workers\u27 compensation system. Eleven women were interviewed. They ranged in age from twenty-five to sixty-five years and represented diverse socio-economic and educational backgrounds. All women were from a non-indigenous background. The initial question to women was Can you tell me what it is like to be involved in the workers\u27 compensation system? The narratives were analysed and interpreted using Hycner\u27s (1985) phenomenological guidelines. Five core themes were found: negative versus positive/neutral experiences, the workplaces response and role in the process, women\u27s experiences of payouts and tribunals, reasons why women may not claim workers\u27 compensation, and the impact of the process on each women and their family(s). Acker\u27s theory of \u27gendered institutions\u27 was used to understand why many apparently gender-neutral processes are sites of gender production (Acker, 1992b, p. 249). The experiences of the eleven women suggested that the workers\u27 compensation system in Queensland is gendered; \u27The women indicated that the workers compensation process was a disincentive to making a claim. WorkCover was viewed as siding with the employer, bureaucratic in nature and lacking values associated with empathy, sympathy and caring. Recommendations for improvements to the workers\u27 compensation included: establish legal obligations and enforcement of occupational health and safety responsibilities to injured or ill workers; adoption of occupational health and safety values by employers; change the attitudes of employers (recognising women as breadwinners and workers are not disposable); a single case manager to advocate for injured or ill workers; recognition of mental and emotional consequences of an injury or illness provision of rehabilitation that recognises mental and emotional factors as well as the importance of family participation; greater involvement of employers and employees in the rehabilitation process; and finally, improved service delivery which involves consistency, ethics, clarity, (regarding the WorkCover process for injured workers and employers), accountability and involvement of all parties. The knowledge embedded in the interviews, expressed through core stories and themes, was essential to making women\u27s voices visible and providing an insight into service delivery based on women\u27s experiences and needs

Financial Report, 2006

This resource is one among many in the UMSLCAB open dataset at IRL.UMSL.edu/CABhttps://irl.umsl.edu/cab/1822/thumbnail.jp

Between overt and covert research: concealment and disclosure in an ethnographic study of commercial hospitality

This article examines the ways in which problems of concealment emerged in an ethnographic study of a suburban bar and considers how disclosure of the research aims, the recruitment of informants, and elicitation of information was negotiated throughout the fieldwork. The case study demonstrates how the social context and the relationships with specific informants determined overtness or covertness in the research. It is argued that the existing literature on covert research and covert methods provides an inappropriate frame of reference with which to understand concealment in fieldwork. The article illustrates why concealment is sometimes necessary, and often unavoidable, and concludes that the criticisms leveled against covert methods should not stop the fieldworker from engaging in research that involves covertness

Financial Report, 2005

This resource is one among many in the UMSLCAB open dataset at IRL.UMSL.edu/CABhttps://irl.umsl.edu/cab/1792/thumbnail.jp

Covert Research The Art, Politics and Ethics of Undercover Fieldwork

Undercover research is an emotive and controversial field often equated with deception and transgression. Using classic examples and contemporary case studies this book challenges covert research’s dispersed place within the social sciences and rehabilitates its reputation as a powerful research method. Drawing in part on his own undercover research into the night-time economy of bouncers, the author explores the roots and evolution of covert research; his deft treatment of the fear and fascination within furtive fieldwork is grounded in the practicality of the methods and tools needed to conduct quality research in the field. Packed with learning-by-example tips, this insightful book shows that with critical imagination and proper ethical foundations, covert research could be a great addition to your methodological toolkit