From Scholarship Girls to Scholarship Women: Surviving the Contradictions of Class and Race in Academe

This article explores the dilemmas graduate education poses for women of working-class origin who come from different ethnic and racial backgrounds. It proceeds in a chronological narrative using examples from the authors\u27 personal experiences to make general points about how the intricate web of class, race, and gender relations shaped their experiences in higher education. Both women -- Cucidraz, a Chicana, and Pierce, a white woman -- struggle with the feelings of alienation and marginality as outsiders within the academy as well as their material needs for financial support. Their personal narratives reveal, as well, how race shapes their experiences in the academy. Racism renders Cuadraz\u27 class status visible, whereas whiteness masks Pierce\u27s background. Finally, the authors shift their focus from an examination of the structures which shaped their lives to an exploration of their attempts to find their own voices in academic work, and to resist the very structures which excluded their experiences as women from working-class backgrounds

Preliminary evaluation of radar imagery of Yellowstone Park, Wyoming

Evaluation of radar imagery of Yellowstone Park, Wyomin

Sound propagation over uneven ground and irregular topography

The goal of this research is to develop theoretical, computational, and experimental techniques for predicting the effects of irregular topography on long range sound propagation in the atmosphere. Irregular topography here is understood to imply a ground surface that is not idealizable as being perfectly flat or that is not idealizable as having a constant specific acoustic impedance. The interest of this study focuses on circumstances where the propagation is similar to what might be expected for noise from low-attitude air vehicles flying over suburban or rural terrain, such that rays from the source arrive at angles close to grazing incidence. The activities and developments that have resulted during the period, August 1986 through February 1987, are discussed

Is the PAMELA Positron Excess Winos?

Recently the PAMELA satellite-based experiment reported an excess of galactic positrons that could be a signal of annihilating dark matter. The PAMELA data may admit an interpretation as a signal from a wino-like LSP of mass about 200 GeV, normalized to the local relic density, and annihilating mainly into W-bosons. This possibility requires the current conventional estimate for the energy loss rate of positrons be too large by roughly a factor of five. Data from anti-protons and gamma rays also provide tension with this interpretation, but there are significant astrophysical uncertainties associated with their propagation. It is not unreasonable to take this well-motivated candidate seriously, at present, in part because it can be tested in several ways soon. The forthcoming PAMELA data on higher energy positrons and the FGST (formerly GLAST) data, should provide important clues as to whether this scenario is correct. If correct, the wino interpretation implies a cosmological history in which the dark matter does not originate in thermal equilibrium.Comment: 7 pages, 4 figue

The influence of composition, annealing treatment, and texture on the fracture toughness of Ti-5Al-2.5Sn plate at cryogenic temperatures

The plane strain fracture toughness K sub Ic and conventional tensile properties of two commercially produced one-inch thick Ti-5Al-2.5Sn plates were determined at cryogenic temperatures. One plate was extra-low interstitial (ELI) grade, the other normal interstitial. Portions of each plate were mill annealed at 1088 K (1500 F) followed by either air cooling or furnace cooling. The tensile properties, flow curves, and K sub Ic of these plates were determined at 295 K (room temperature), 77 K (liquid nitrogen temperature), and 20 K (liquid hydrogen temperature)

Sound propagation over uneven ground and irregular topography

Theoretical, computational, and experimental techniques were developed for predicting the effects of irregular topography on long range sound propagation in the atmosphere. Irregular topography is understood to imply a ground surface that: (1) is not idealizable as being perfectly flat, or (2) that is not idealizable as having a constant specific acoustic impedance. The focus is on circumstances where the propagation is similar to what might be expected for noise from low altitude air vehicles flying over suburban or rural terrain, such that rays from the source arrive at angles close to grazing incidence

Urinary incontinence, work, and intention to leave current job: A cross sectional survey of the Australian nursing and midwifery workforce

© 2017 Wiley Periodicals, Inc. Aims: To determine the prevalence and severity of urinary incontinence (UI) in a group of female nurses and midwives, and to examine the relationship between UI, work and intention to leave current job. Methods: An electronic survey “Fit for the future” was distributed to nurses and midwives in NSW, Australia between May 2014 and February 2015. UI was investigated using the International Consultation on Incontinence UI—Short Form. Examined work characteristics included: work role, location, setting, contract, shift, job satisfaction, and plans to leave current job. Logistic regression modelling was performed to determine whether the severity of UI had an independent effect on intention to leave. Results: Of 5041 survey responses, 68.5% answered the question on urine leakage. Of the included female sample (n = 2,907) the prevalence of UI was 32.0% (95% CI: 30-34%): of these 40.5% experienced moderate and 4.4% “severe or very severe” symptoms. UI was more likely to be reported in nurses or midwives working part-time or days only (not shifts). Those with “severe or very severe UI” were more likely to indicate an intention to leave at 12 months (OR: 2.68; 95% CI: 1.18-6.06) than those with slight or moderate symptoms, after accounting for age, body mass index, parity, pelvic organ prolapse, anxiety, depression, work contract, shift, and job satisfaction. Conclusions: UI is a condition of high prevalence and significant severity in female nurses and midwives. In this workforce, severe UI was associated with intentions related to future employment

Barriers and facilitators to healthy eating for nurses in the workplace: an integrative review

© 2016 John Wiley & Sons Ltd Aim: The aim was to conduct an integrative systematic review to identify barriers and facilitators to healthy eating for working nurses. Background: There is growing recognition of the influence of the workplace environment on the eating habits of the workforce, which in turn may contribute to increased overweight and obesity. Overweight and obesity exact enormous costs in terms of reduced well-being, worker productivity and increased risk of non-communicable diseases. The workplace is an ideal place to intervene and support healthy behaviours. This review aimed to identify barriers and facilitators to nurses’ healthy eating in the workplace. Design: Integrative mixed method review. Data sources: Five electronic databases were searched: CINAHL, MEDLINE, PROQUEST Health and Medicine, ScienceDirect and PsycINFO. Reference lists were searched. Included papers were published in English between 2000–2016. Of 26 included papers, 21 were qualitative and five quantitative. Review methods: An integrative literature review was undertaken. Quality appraisal of included studies used standardized checklists. A social-ecological framework was used to examine workplace facilitators and constraints to healthy eating, derived from the literature. Emergent themes were identified by thematic analysis. Results: Review participants were Registered, Enrolled and/or Nurse Assistants primarily working in hospitals in middle or high income countries. The majority of studies reported barriers to healthy eating related to adverse work schedules, individual barriers, aspects of the physical workplace environment and social eating practices at work. Few facilitators were reported. Overall, studies found the workplace exerts a considerable negative influence on nurses’ dietary intake. Conclusion: Reorientation of the workplace to promote healthy eating among nurses is required

Sound propagation over uneven ground and irregular topography

The acoustic impedance of the surface coverings used in the laboratory experiments on sound diffraction by topographical ridges was determined. The model, which was developed, takes into account full wave effects and the possibility of surface waves and predicts the sound pressure level at the receiver location relative to what would be expected if the flat surface were not present. The sound pressure level can be regarded as a function of frequency, sound speed in air, heights of source and receiver, and horizontal distance from source to receiver, as well as the real and imaginary parts of the surface impedance

Multi-transmission-line-beam interactive system

We construct here a Lagrangian field formulation for a system consisting of an electron beam interacting with a slow-wave structure modeled by a possibly non-uniform multiple transmission line (MTL). In the case of a single line we recover the linear model of a traveling wave tube (TWT) due to J.R. Pierce. Since a properly chosen MTL can approximate a real waveguide structure with any desired accuracy, the proposed model can be used in particular for design optimization. Furthermore, the Lagrangian formulation provides for: (i) a clear identification of the mathematical source of amplification, (ii) exact expressions for the conserved energy and its flux distributions obtained from the Noether theorem. In the case of uniform MTLs we carry out an exhaustive analysis of eigenmodes and find sharp conditions on the parameters of the system to provide for amplifying regimes