Molecular simulation of the phase behavior of noble gases using accurate two-body and three-body intermolecular potentials

Gibbs ensemble Monte Carlo simulations are reported for the vapor- liquid phase coexistence of argon, krypton, and xenon. The calculations employ accurate two-body potentials in addition to contributions from three-body dispersion interactions resulting from third-order triple-dipole, dipole-dipole-quadrupole, dipole- quadrupole-quadrupole, quadrupole-quadrupole-quadrupole, and fourth- order triple- dipole terms. It is shown that vapor-liquid equilibria are affected substantially by three-body interactions. The addition of three-body interactions results in good overall agreement of theory with experimental data. In particular, the subcritical liquid- phase densities are predicted accurately. (C) 1999 American Institute of Physics. S0021- 9606(99)50728-9

Pointing the Finger at Leadership

The word leadership is often used incorrectly to refer to management, supervision, command, and statesmanship. Scholars rarely, if ever, make any distinction among these four different constructs. Most theories of leadership are really theories of supervision, and the words leadership and supervision are used interchangeably. This paper attempts to distinguish between the two

A Study of Planned Organizational Change at General Dynamics

A case study approach was used to evaluate organizational change that occurred between 1986 and 1989 at General Dynamics Corporation. The purpose of the study was to determine how persons in leading positions can realistically expect to plan and implement significant, planned organizational changes. The changes specifically studied were those which resulted from the planning and implementation of the Ethics Program. The Ethics Program at General Dynamics was examined not only as a case example of a planned, intended change, but as a vehicle for broad strategic goals pertaining to human resources management. Historic data from corporate documents and surveys, and current data from a resurvey were used to establish changes in trends in the organization. Interviews were used to explore the planning process and general planning-related change trends. Two groups of employees, totaling twenty individuals, were interviewed. The planning group (five individuals) provided specific information on planning processes, and the cultural group (fifteen individuals) provided general information on the culture of the organization and culturally related changes. Results indicated that the Ethics Program was successful in meeting its specific objectives of making employees aware of the standards of conduct and enforcing conformance to those standards. The broader human resources goals intended by the program\u27s designers did not appear to have been as successfully implemented. A conflict between two distinctively different sets of cultural values appeared to have offset many of the intended changes. Findings further indicated that the Ethics Program was most likely an inappropriate vehicle for the implementation of general, strategic human resources goals

Cardiac rehabilitation in rural and remote areas of North Queensland: how well are we doing?

Objective: To address access to cardiac rehabilitation (CR) for people in R&R areas, this research aimed to investigate: (1) post discharge systems and support for people returning home from hospital following treatment for heart disease (HD). (2) propose changes to improve access to CR in R&R areas of NQ. Setting: Four focus communities in R&R areas of NQ. Participants: Focus communities’ health staff (resident/visiting) (57), community leaders (10) and community residents (44), discharged from hospital in past 5 years following treatment for heart disease (purposeful sampling). Design: A qualitative descriptive case study, with data collection via semi-structured interviews. Inductive/deductive thematic analysis was used to identify primary and secondary themes. Health service audit of selected communities. Results: Health services in the focus communities included multipurpose health services, and primary health care centres staffed by resident and visiting staff that included nurses, Aboriginal and Torres Strait Islander Health Workers, medical officers, and allied health professionals. Post-discharge health care for people with HD was predominantly clinical. Barriers to CR included low referrals to community-based health professions by discharging hospitals; poorly defined referral pathways; lack of guidelines; inadequate understanding of holistic, multidisciplinary CR by health staff, community participants and leaders; limited centre-based CR services; lack of awareness, or acceptance of telephone support services. Conclusion: To address barriers identified for CR in R&R areas, health care systems’ revision, including development of referral pathways to local health professionals, CR guidelines and in-service education, is required to developing a model of care that focuses on self-management and education: Heart: Road to Health

Cardiac rehabilitation services for people in rural and remote areas: an integrative literature review

Introduction: Morbidity and mortality from heart disease continues to be high in Australia with cardiac rehabilitation (CR) recognised as best practice for people with heart disease. CR is known to reduce mortality, reoccurrence of heart disease, hospital readmissions and costs, and to improve quality of life. Australian Aboriginal and Torres Strait Islanders (Australian First Peoples or Indigenous peoples) have a greater need for CR due to their higher burden of disease. However, CR referral, access and attendance remain low for all people who live in rural and remote areas. The aim of this integrative review was to identify barriers, enablers and pathways to CR for adults living independently in rural and remote areas of high-income countries, including Australia. Methods: Studies were identified through five online data bases, plus reference lists of the selected studies. The studies focused on barriers and enablers of CR for adults in rural and remote areas of Australia and other high-income countries, in English peer reviewed journals (2007-2016). A mix of qualitative, quantitative and mixed method studies were reviewed through a modified Preferred Reporting Items for Systematic Reviews and Meta Analyses (PRISMA), followed by a critical review and thematic analysis. Results: Sixteen studies were selected: seven qualitative, four quantitative and five mixed method. Five themes that influence CR attendance were identified: referral, health services pathways and planning; cultural and geographic factors necessitating alternative and flexible programs; professional roles and influence; knowing, valuing, and psychosocial factors; and financial costs - personal and health services. Factors identified that impact on referral and access to CR were hospital inpatient education programs on heart disease and risk factors; discharge processes including CR eligibility criteria and referral to ensure continuum and transition of care; need for improved accessibility of services, both geographically and through alternative programs, including home based with IT and/or telephone support Also, the need to ensure that health professionals understand, value and support CR; the impact of mental health, coping with change and competing priorities; costs including travel, medications and health professional consultations; as well as low levels of involvement of Australian First Peoples in their own care and poor cultural understanding by non-Australian First Peoples staff all negatively impact on CR access and attendance. Conclusion: This study found weak systems with low referral rates and poor access to CR in rural and remote areas. Underlying factors include lack of health professional and public support, often based on poor perception of benefits of CR, compounded by scarce and inflexible services. Low levels of involvement of Australian First Peoples, as well as a lack of cultural understanding by non-Australian First Peoples staff, is evident Overall, the findings demonstrate the need for improved models of referral and access, greater flexibility of programs and professional roles, with management support Further, increased education and involvement of Australian First Peoples, including Indigenous health workers taking a lead in their own people's care, supported by improved education and greater cultural awareness of non Australian First Peoples staff, is required

SMART arm with outcome-triggered electrical stimulation: a pilot randomized clinical trial

Background: The SMART (SensoriMotor Active Rehabilitation Training) Arm is a nonrobotic device designed to allow stroke survivors with severe paresis to practice reaching. It can be used with or without outcome-triggered electrical stimulation (OT-stim) to augment movement. The aim of this study was to evaluate the efficacy of SMART Arm training when used with or without OT-stim, in addition to usual care, as compared with usual care alone during inpatient rehabilitation. Methods: Eight stroke survivors received 20 hours of SMART Arm training over 4 weeks; they were randomly assigned to either (1) SMART Arm training with OT-stim or (2) SMART Arm training alone. Usual therapy was also provided. A historical cohort of 20 stroke survivors formed the control group and received only usual therapy. The primary outcome was Motor Assessment Scale Item 6, Upper Arm Function. Results: Findings for all participants were comparable at baseline. SMART Arm training, with or without OT-stim, led to a significantly greater improvement in upper arm function than usual therapy alone (P=.024). There was no difference in improvement between training with or without OT-stim. Initial motor severity and presence of OT-stim influenced the number of repetitions performed and the progression of SMART Arm training practice conditions. Conclusion: Usual therapy in combination with SMART Arm training, with or without OT-stim, appears to be more effective than usual therapy alone for stroke survivors with severe paresis. These findings warrant further investigation into the benefits of SMART Arm training for stroke survivors with severe paresis undergoing inpatient rehabilitation during the subacute phase of recovery

Electronic structure of NiS1−x_{1-x}Sex_x across the phase transition

We report very highly resolved photoemission spectra of NiS(1-x)Se(x) across the so-called metal-insulator transition as a function of temperature as well as composition. The present results convincingly demonstrate that the low temperature, antiferromagnetic phase is metallic, with a reduced density of states at E$_F$. This decrease is possibly due to the opening of gaps along specific directions in the Brillouin zone caused by the antiferromagnetic ordering.Comment: Revtex, 4 pages, 3 postscript figure

Prospectus, September 21, 1989

https://spark.parkland.edu/prospectus_1989/1020/thumbnail.jp