The electrical response matrix of a regular 2n-gon

Consider a unit-resistive plate in the shape of a regular polygon with 2n sides, in which even-numbered sides are wired to electrodes and odd-numbered sides are insulated. The response matrix, or Dirichlet-to-Neumann map, allows one to compute the currents flowing through the electrodes when they are held at specified voltages. We show that the entries of the response matrix of the regular 2n-gon are given by the differences of cotangents of evenly spaced angles, and we describe some connections with the limiting distributions of certain random spanning forests.Comment: 10 pages, 4 figures; v2 adds more background informatio

The Practitioner\u27s Corner: An exploration of municipal active living charter development and advocacy

Background: Numerous municipal active living-­‐related charters have been adopted to promote physical activity in Canada throughout the past decade. Despite this trend, there are few published critical examinations of the process through which charters are developed and used. Purpose: Thus, the purpose of this study was to establish greater understanding of active living charter development and advocacy. Methods: Semi-­‐structured interviews were conducted with eight primary contributors to different active living-­‐related charters across Ontario, Canada. Interview questions explored participants’ experiences developing and advocating for an active living charter. Interviews were analyzed using open, axial, and selective coding. Results and Conclusions: Participants consistently described a process whereby an impetus triggered the development of a charter, which was subsequently adopted by regional or municipal council. Continued advocacy to develop awareness of the charter and to promote desired outcomes in the community was valued and the capacity of the working group as well as the local political context played pivotal roles in determining how the charter was implemented. Outcomes were, however, only objectively evaluated in one case that was described – evaluation being a process that many participants thought was omitted in regard to their own charter. This work provides practical guidance for health professionals developing regional active living charters as a component of broader advocacy efforts

An evaluation of curriculum-related specialties in grades five and six

Thesis (Ed.M.)--Boston Universit

Access to, and experiences of, maternity care for women with physical disabilities: A scoping review.

OBJECTIVE: Women with physical disabilities face multiple barriers in accessing safe, respectful and acceptable healthcare. As the number of women with physical disabilities becoming pregnant rises, ensuring their access to acceptable and high-quality maternity care becomes increasingly important. This review aimed to explore the most recent evidence regarding access to, and experiences of, maternity care for women with physical disabilities in high-income countries. DESIGN: A scoping review was undertaken as guided by the Preferred Reporting Items for Systematic Reviews extension for scoping reviews (PRISMA-ScR). A systematic search of five online databases identified relevant articles published in English from 2000 to 2020. Reference lists of included studies were also screened, and quality was appraised using the Joanna Briggs Institute Checklists. A thematic synthesis was undertaken to develop descriptive and analytical themes. FINDINGS: After screening, 27 articles from eight high-income countries were included. All articles were identified as having moderate or high methodological rigour in the quality appraisal. Women with physical disabilities reported numerous barriers in accessing maternity care and described predominantly mixed and negative experiences of care. These findings were grouped under three major themes: women with physical disabilities want a "normal" pregnancy experience; the need to strengthen maternity provider's disability knowledge and skills; and promoting enabling environments for improved access to, and experiences of, maternity care. KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: This review found that for women with physical disabilities access to, and experiences of, maternity care is suboptimal. Improving maternity providers disability knowledge and awareness, increasing the availability of support services for women, and increasing person-centred care through organisational policies and provider training may help to address the inequities women with disabilities face in accessing high-quality maternity care

General practitioner provision of preventive child health care: analysis of routine consultation data

<b>Background</b> GPs contribute to preventive child health care in various ways, including provision of child health surveillance (CHS) reviews, opportunistic preventive care, and more intensive support to vulnerable children. The number of CHS reviews offered in Scotland was reduced from 2005. This study aimed to quantify GPs’ provision of different types of preventive care to pre-school children before and after the changes to the CHS system.<p></p> <b>Methods</b> GP consultation rates with children aged 0–4 years were examined for the 2½ years before and after the changes to the CHS system using routinely available data from 30 practices in Scotland. Consultations for CHS reviews; other aspects of preventive care; and all reasons were considered.<p></p> <b>Results:</b> Prior to the changes to the CHS system, GPs often contributed to CHS reviews at 6–8 weeks and 8–9 and 39–42 months. Following the changes, GP provision of the 6–8 week review continued but other reviews essentially ceased. Few additional consultations with pre-school children are recorded as involving other aspects of preventive care, and the changes to CHS have had no impact on this. In the 2½ years before and after the changes, consultations recorded as involving any form of preventive care accounted for 11% and 7.5% respectively of all consultations with children aged 0–4 years, with the decline due to reductions in CHS reviews.<p></p> <b>Conclusions:</b> Effective preventive care through the early years can help children secure good health and developmental outcomes. GPs are well placed to contribute to the provision of such care. Consultations focused on preventive care form a small minority of GPs’ contacts with pre-school children, however, particularly since the reduction in the number of CHS reviews

Abundant and equipotent founder cells establish and maintain acute lymphoblastic leukaemia

High frequencies of blasts in primary acute lymphoblastic leukaemia (ALL) samples have the potential to induce leukaemia and to engraft mice. However, it is unclear how individual ALL cells each contribute to drive leukaemic development in a bulk transplant and the extent to which these blasts vary functionally. We used cellular barcoding as a fate mapping tool to track primograft ALL blasts in vivo. Our results show that high numbers of ALL founder cells contribute at similar frequencies to leukaemic propagation over serial transplants, without any clear evidence of clonal succession. These founder cells also exhibit equal capacity to home and engraft to different organs, although stochastic processes may alter the composition in restrictive niches. Our findings enhance the stochastic stem cell model of ALL by demonstrating equal functional abilities of singular ALL blasts and show that successful treatment strategies must eradicate the entire leukaemic cell population

Teams in transition: an ethnographic case-study highlighting cohesion and leadership in a collegiate athletic team

While a great deal of theoretical work has been conducted describing group development, there is an underdeveloped area in the examination of the development of a group or team that is faced with constant transition. The purpose of this dissertation is twofold. First, this dissertation seeks to understand how cohesion is developed within a collegiate athletic team that has players come and go each season and, at times, within a season. Second, this dissertation explores how the coaching staff sustained and managed the cohesion within the team. To explore these issues, an ethnographic study was conducted with a Division 1- A, collegiate basketball team called Private U. Over 50 practices were attended and 20 formal interviews were completed. Results showed that cohesion occurred through social and task forms and in varying contexts. The coaching staff, and specifically the head coach, used self-handicapping to protect his players and thereby potentially keeping division from happening among team members. The lens of Symbolic Convergence Theory is utilized to discuss specific cohesion-forming moments during the season. Communication about cohesion transpired through interactions between the coaching staff and the players, and in fact, even between the coaching staff and prospective players who were being recruited to play for Private U. The coaching staff attempted to convey memorable messages and provided legal incentives to recruits because the importance of building cohesion begins with the players that the staff would get to come to Private U. Through on and off-court interactions, the coaching staff managed the cohesion on the team that had been created, but this was not always an easy task. Through the use of Leader-Member Exchange (LMX) theory and Dialectical Theory, I examined how in-groups and out-groups were experienced by some of the players. The desires from Private U team members to compete with their teammates for playing time, but also to want the best result for the team created a dialectical tension for team members that is discussed through the Competition-Cooperation dialectic

A Thesis on the Fragment of the Gospel of Peter

A study of the fragment of the Gospel of St. Peter