A real time Pegasus propulsion system model for VSTOL piloted simulation evaluation

A real time propulsion system modeling technique suitable for use in man-in-the-loop simulator studies was developd. This technique provides the system accuracy, stability, and transient response required for integrated aircraft and propulsion control system studies. A Pegasus-Harrier propulsion system was selected as a baseline for developing mathematical modeling and simulation techniques for VSTOL. Initially, static and dynamic propulsion system characteristics were modeled in detail to form a nonlinear aerothermodynamic digital computer simulation of a Pegasus engine. From this high fidelity simulation, a real time propulsion model was formulated by applying a piece-wise linear state variable methodology. A hydromechanical and water injection control system was also simulated. The real time dynamic model includes the detail and flexibility required for the evaluation of critical control parameters and propulsion component limits over a limited flight envelope. The model was programmed for interfacing with a Harrier aircraft simulation. Typical propulsion system simulation results are presented

Postcard from Howard to Hubert Creekmore

Howard writes from Rome, to Creekmore in Jackson, Mississippi. He hopes Creekmore had a good summer.https://egrove.olemiss.edu/creekmore/1561/thumbnail.jp

Letter from Martin S. Allwood to Hubert Creekmore

Allwood writes from Hobart and William Smith Colleges in a document titled, Outline of An International College in Sweden. He discusses the founding of the Marston Hill Intercultural Center for Quality of Life and the Anglo-American Center there by founders Charles S. Allwood and C. S. Fearenside. Allwood discusses the summer school for Anglo-American students and explains the finances and resources that the school needs. Includes envelope.https://egrove.olemiss.edu/creekmore/1039/thumbnail.jp

Postcard from Corporal Neil S. Wright to Lt. Hubert Creekmore (undated)

Postcard from Neil S. Wright to Hubert Creekmore in Jackson, Mississippi regarding their visit in Tucson, AZ and sending holiday wishes.https://egrove.olemiss.edu/creekmore/1884/thumbnail.jp

Study of dynamics of minor constituents in the thermosphere

The global distribution of helium and argon in the terrestrial thermosphere is described. It is based on the extension of a three-dimensional single-fluid numerical model of the thermosphere previously developed by the authors to treat the dynamics of a minor gas imbedded in a background gas made up of N2, O2, and O. Empirical models of the upper atmosphere, based on satellite drag and mass spectrometer data, are used to specify the background gas density and temperature as functions of altitude, latitude, and local time for a given day of the year. Effects of solar activity, eddy diffusion, and exospheric transport on the global distribution of minor gases are investigated

Baring all: the impact of the hospital gown on patient wellbeing

Objectives The importance of personalized and dignified care is increasingly being recognized in health care policy and practice. Despite the known impact of clothing on social identity and self-expression, the impact of hospital clothing on patient well-being has been widely overlooked. Patients are often required to wear hospital clothing, commonly a backless gown, during medical procedures and surgeries. The impact of wearing patient clothing on well-being, during this time of vulnerability, was explored. Design A sequential multi-method approach consisting of two studies. Methods Two studies were carried out to consider the impact of the hospital gown on well-being among adults with and without chronic health conditions. The first study consisted of conducting in-depth, semi-structured interviews (n = 10) with adults living with a lifelong chronic health condition (congenital heart disease). The second study was a cross-sectional online survey exploring adults' views (n = 928) and experiences of wearing the hospital gown. Results Qualitative analysis identified the following master themes: (1) symbolic embodiment of the ‘sick’ role, (2) relinquishing control to medical professionals, and (3) emotional and physical vulnerability. Quantitative analysis of the online survey data indicated that adults often reported wearing the hospital gown despite a lack of medical necessity. Its design was considered to be not fit for purpose and lacking in dignity. Conclusions The implications of these findings for health policy and practice are discussed, emphasizing the importance of challenging cultural norms in health care since dehumanizing aspects of care, as symbolically represented by the hospital gown, may adversely impact on patient well-being. Statement of contribution What is already known Getting dressed is a form of self-expression, which contributes to the construction of social identity, yet few studies have explored the impact of wearing hospital clothing on patient well-being. The few studies on hospital clothing that exist suggest it is predominantly associated with feeling depersonalized, stigmatized, and devitalized, being in the ‘patient role’, low status, and a lack of control and privacy. However, previous studies include a variety of hospital clothing including pyjamas (Edvardsson, 2009) and dressing gowns (Topo & Iltanen-Tähkävuori, 2010), whereas in the United Kingdom, a 'one-size-fits-all' backless gown, held together with ties at the back, is most commonly used. What this study adds This study furthers understanding about the lived experience of wearing hospital clothing for people living with a chronic health condition (congenital heart disease) and without. Wearing hospital clothing (most commonly the hospital gown) was associated with symbolic embodiment of the ‘sick’ role, relinquishing control to medical professionals, and emotional and physical vulnerability for people living with a chronic health condition. Findings from a wider sample, drawn from the general population, suggest that the hospital gown is often being used despite a lack of medical necessity often leaving patients feeling exposed, self-conscious, vulnerable, uncomfortable, cold, embarrassed, and disempowered. These findings are exacerbated for people living with a long-term health condition and women. Together, these studies suggest that the current design of the hospital gown is not fit for purpose and impacts negatively on patient well-being