Parental relationships of anti-social boys

Thesis (M.S.)--Boston Universit

Current source enhancements in Electrical Impedance Spectroscopy (EIS) to cancel unwanted capacitive effects

Electrical Impedance Spectroscopy (EIS) has emerged as a non-invasive imaging modality to detect and quantify functional or electrical properties related to the suspicious tumors in cancer screening, diagnosis and prognosis assessment. A constraint on EIS systems is that the current excitation system suffers from the effects of stray capacitance having a major impact on the hardware subsystem as the EIS is an ill-posed inverse problem which depends on the noise level in EIS measured data and regularization parameter in the reconstruction algorithm. There is high complexity in the design of stable current sources, with stray capacitance reducing the output impedance and bandwidth of the system. To confront this, we have designed an EIS current source which eliminates the effect of stray capacitance and other impacts of the capacitance via a variable inductance. In this paper, we present a combination of operational CCII based on a generalized impedance converter (OCCII-GIC) with a current source. The aim of this study is to use the EIS system as a biomedical imaging technique, which is effective in the early detection of breast cancer. This article begins with the theoretical description of the EIS structure, current source topologies and proposes a current conveyor in application of a Gyrator to eliminate the current source limitations and its development followed by simulation and experimental results. We demonstrated that the new design could achieve a high output impedance over a 3MHz frequency bandwidth when compared to other types of GIC circuits combined with an improved Howland topology

Patient Centered Medical Home: Creating A Blueprint for Quality Healthcare Through Illustrative Simulation

The advent of healthcare reform in the U.S. presents an unprecedented challenge to academic institutions that are striving to prepare a workforce to interact with individuals needing care in a variety of new practice settings. Patient-centered care is a core objective of these evolving settings which enhance access to a variety professionals and services in one location. This study was conducted over a period of three years and describes how illustrative simulation can be employed as a learning intervention to prepare graduate students for the expanded scope of practice necessary to function in the Patient Centered Medical Home healthcare delivery setting. The authors’ evaluation revealed that doctor of nursing practice students’ perceived illustrative simulation strengthened their understanding of: (a) the Institute of Medicine Core Competencies for a New Vision for Health Professionals, (b) the four competency domains identified by the Interprofessional Education Collaborative, and (c) the eligibility standards for National Committee for Quality Assurance – Patient Centered Medical Home recognition

Do You Understand What I Mean? How Cognitive Interviewing Can Strengthen Valid, Reliable Study Instruments And Dissemination Products

It is now well accepted that working in research teams that span universities, jurisdictions and countries can be rewarding and economically prudent. To this end, investigators collaborate in the pursuit of knowledge to address human and societal problems and translate results into local and global contexts. This implies that investigators need to develop study instruments that are fit for purpose and strategically manage issues arising from geographical, linguistic and cultural diversity.  A proven method is cognitive interviewing to pre-test the study materials to ensure clarity and relevance in the study population. This paper describes the steps taken to increase the methodological reliability of study instruments through the use of cognitive interviewing and argues this technique should be a standard step in instrument development.

A Look Back at the History of the NPS and the Electrical Engineering Department

Naval Postgraduate School Department of Electrical and Computer Engineering Seminar SeriesA poster advertising a talk by Prof. Sheingold on the topic of how the ECE department evolved from the 1940s to the 1970s, and to provide a background on origins of the ECE department and on how portions of the Physics, Electronics and the traditional Electrical Engineering (machinery) evolved into the organization of that time; the exodus from Annapolis; a review of the past chairmen and how the campus changed. Prof. Emeritus Conley Smith provided videos and images of NPS both in Monterey and in Annapolis to accompany the talk

Resume of Abraham Sheingold, 1951

Naval Postgraduate School Faculty Resum

Hiding In Plain Sight: Building Community Social Capital In Distance Education Graduate Programs

There is an increasing global demand for a broad range of academic programs to be offered by distance education. The development of flexible online technology has made studying for a degree ‘anywhere and anytime’ possible and this option has significant appeal for many people. However, there is limited knowledge available to guide faculty in the strategic development of supportive learning environments for distance education students that fosters connectedness for academic success. The purpose of this three-phase study was to introduce the concept of community social capital to a cohort of graduate nursing students (N=97) and then track implementation and impact in their on-line academic learning environment. Understanding social capital at the onset of graduate school can lead to an improved sense of how students can utilize and grow social capital, enhance bonding, and increase their academic advantage. The findings inform future education curricula, innovative strategies, and educational research agendas by suggesting that social capital awareness is beneficial to students enrolled in distance education

Hospice Use, Hospitalization, and Medicare Spending at the End of Life

OBJECTIVES: Prior studies associate hospice use with reduced hospitalization and spending at the end of life based on all Medicare hospice beneficiaries. In this study, we examine the impact of different lengths of hospice care and nursing home residency on hospital use and spending prior to death across 5 disease groups. METHODS: We compared inpatient hospital days and Medicare spending during the last 6 months of life using hospice versus propensity matched non-hospice beneficiaries who died in 2010, were enrolled in fee for service Medicare throughout the last 2 years of life, and were in at least 1 of 5 disease groups. Comparisons were based on length of hospice use and whether the decedent was in a nursing home during the seventh month prior to death. We regressed a categorical measure of hospice days on outcomes, controlling for observed patient characteristics. RESULTS: Hospice use over 2 weeks was associated with decreased hospital days (1-5 days overall, with greater decreases for longer hospice use) for all beneficiaries; spending was $900-$5,000 less for hospice use of 31-90 days for most beneficiaries not in nursing homes, except beneficiaries with Alzheimer's. Overall spending decreased with hospice use for beneficiaries in nursing homes with lung cancer only, with a $3,500 reduction. DISCUSSION: The Medicare hospice benefit is associated with reduced hospital care at the end of life and reduced Medicare expenditures for most enrollees. Policies that encourage timely initiation of hospice and discourage extremely short stays could increase these successes while maintaining program goals

Leadership In Learning And Teaching In Higher Education: Perspectives Of Academics In Non-Formal Leadership Roles

Developing leaders and leadership are key factors to improve learning and teaching in higher education. Despite the abundance of literature concerning developing formal leadership, fewer studies have been conducted with academics in non-formal leadership roles that focus on how they develop their leadership in learning and teaching. Publication and funding metrics are evidence of leadership and success in research. Metrics in learning and teaching exist, but are less well accepted and valued. We undertook a qualitative descriptive study to examine how academics in non-formal leadership roles at an Australian university understood leadership and described their leadership in teaching. Following ethical approval, eight participants were interviewed using a semi-structured format. Thematic analysis revealed four themes: leadership is the ability to influence direction; all about the culture; becoming visible and speaking up; and learning leadership together. Participants said leading teaching teams effectively and influencing quality learning experiences for students and colleagues is ‘evidence’ of leadership in learning and teaching. Some said a few research colleagues and formal leaders did not accept such ‘evidence’ and continued to favour leadership of research teams. This paper contributes new strategies as possible ways forward to facilitate cultural change in higher education institutions that include: a need for formal leaders and academics to reach agreement about evidence of effective leadership in learning and teaching; academics sharing innovations to effectively lead teaching teams and to promote quality teaching experiences for students; and mentoring colleagues in learning and teachin