Perceptions of physiotherapy clinical educators’ dual roles as mentors and assessors: Influence on teaching–learning relationships

Background: Central to clinical education is the teaching–learning (T-L) relationship that evolves between the clinical educator (CE) and the student. Within this T-L relationship, CEs may be expected to fulfil dual roles as mentors and assessors of students. Challenges for both parties may arise when CEs take on these different roles. Objectives: The goal of this study was to ascertain how CEs perceived the influence of their dual roles as mentors and assessors on their T-L relationships with physiotherapy students. Method: Individual interviews were semi-structured with nine CEs during this qualitative descriptive study at the Division of Physiotherapy, Faculty of Medicine and Health Sciences, Stellenbosch University. A content analysis followed to analyse the data obtained. An iterative process, aimed to understand the phenomena under study, was conducted via an interpretive approach in context. This revealed main themes that were identified and refined. Results: Clinical educators experienced challenges when their role changed from being a mentor to that of assessor. These challenges affected the learning of students, as they influenced the T-L relationship. Clinical educators experienced ambiguities regarding their dual roles and, as a result, their expectations were often not fulfilled. Conclusion: Students’ learning processes were negatively affected by the changing roles of CEs, who acted as mentors and later as assessors of clinical competence during the students’ clinical rotations. The positioning theory was offered as a framework to resolve the challenges created by the dual roles and to manage expectations between CEs and students. The T-L encounters could be enhanced if students and CEs aligned themselves to a learning-centred paradigm where the focus was on learning and where the needs of the diverse students and the expectations of CEs were balanced. Further research should explore how a workshop with role play, demonstrating to CEs in practice how to reposition themselves, would impact the relationships between both parties. Clinical implications: It is essential to ensure a positive T-L relationship between a CE and a student as this will improve the quality of learning in the clinical environment and, therefore, directly influence student’s patient management. Implementing faculty development programmes to address this, should be further explored

Career Pathways for the Aboriginal and Torres Strait Islander Health Workforce: Literature Review Report: Career Pathways Project

This literature review has been undertaken as a part of the research activities for the Career Pathways Project (CPP) for Aboriginal and Torres Strait Islander health professionals commissioned by the Lowitja Institute. The CPP is focussed on providing insights and guidance to enhance the capacity of the health system to retain and support the development and careers of Aboriginal and Torres Strait Islander people in the health workforce and takes a national perspective. This project was initiated by Aboriginal Community Controlled Organisations (ACCHOs) and involves leadership at all levels by Aboriginal and Torres Strait Islander investigators, partners and field researchers. The aim of the literature review is to examine the peer and grey literature to inform the broader CPP research activities and proposed actions for strengthening the career development opportunities and pathways of Aboriginal and Torres Strait Islander people in the health workforce. The review focuses on four key questions: 1. What are the unique skill sets and values that Aboriginal and Torres Strait Islander health staff and health professionals can, and do, contribute to health services? 2. What are the experiences of Aboriginal and Torres Strait Islander health staff and health professionals in entering, and progressing, their careers within health services? 3. What factors facilitate Aboriginal and Torres Strait Islander health workforce career development and career advancement? 4. What factors impede Aboriginal and Torres Strait Islander health workforce career development and career advancement? In undertaking this literature review and addressing these questions, we first briefly provide a snapshot of the Aboriginal and Torres Strait Islander health workforce and then consider key concepts related to careers. We do so to frame the findings of the literature review provided within the main body of this report and to acknowledge the importance of privileging the contexts, values and perspectives of those who constitute the Aboriginal and Torres Strait Islander health workforce

The Prognostic Value of Eight Immunohistochemical Markers Expressed in the Tumor Microenvironment and on Hodgkin Reed-Sternberg Cells in Pediatric Patients With Classical Hodgkin Lymphoma

Immunohistochemical markers are associated with treatment outcome in adults with classical Hodgkin Lymphoma (cHL). Studies in children are scarce and inconsistent. We investigated in 67 children with cHL, whether the expression of CD15, CD30, PAX5, PD-1, PD-L1, CD68, CD163 and TARC at diagnosis is associated with disease free survival (DFS) and with interim remission status. Low CD15 and low TARC expression were associated with relapsed disease. Low expression of PD-L1 was associated with complete remission at interim PET-scan. Our data suggest a difference between pediatric and adult cHL. This underlines the importance of future research into specific prognostic factors in pediatric cHL, indispensable for improvement of treatment in this population

Automatic image acquisition, calibration and montage assembly for biological X-ray microscopy

Summary We describe a system for the automatic acquisition and processing of digital images in a high-resolution X-ray microscope, including the formation of large-®eld highresolution image montages. A computer-controlled sample positioning stage provides approximate coordinates for each high-resolution subimage. Individual subimages are corrected to compensate for time-varying, non-uniform illumination and CCD-related artefacts. They are then automatically assembled into a montage. The montage assembly algorithm is designed to use the overlap between each subimage and multiple neighbours to improve the performance of the registration step and the ®delity of the result. This is accomplished by explicit use of recorded stage positions, optimized ordering of subimage insertion, and registration of subimages to the developing montage. Using this procedure registration errors are below the resolution limit of the microscope (43 nm). The image produced is a seamless, large-®eld montage at full resolution, assembled automatically without human intervention. Beyond this, it is also an accurate X-ray transmission map that allows the quantitative measurement of anatomical and chemical features of the sample. Applying these tools to a biological problem, we have conducted the largest X-ray microscopical study to date

Detection of defect populations in superhard semiconductor boron subphosphide B12P2 through X-ray absorption spectroscopy

Citation: Detection of defect populations in superhard semiconductor boron subphosphide B12P2 through X-ray absorption spectroscopy. S. P. Huber, E. Gullikson, J. Meyer-Ilse, C. D. Frye, J. H. Edgar, R. W. E. van de Kruijs, F. Bijkerk, and D. Prendergast J. Mater. Chem. A 5 5737--5749 (2017) 10.1039/c6ta10935gRecent theoretical work has shown for the first time how the experimentally observed property of “self-healing” of the superhard semiconductor boron subphosphide (B12P2) arises through a process of mediated defect recombination. Experimental verification of the proposed mechanism would require a method that can detect and distinguish between the various defect populations that can exist in B12P2. X-ray absorption near-edge spectroscopy (XANES) is such a method and in this work we present experimentally collected spectra of B12P2samples with varying crystalline qualities. By simulating the X-ray spectroscopic signatures of potential crystallographic point defects from first-principles within the density functional theory framework, the presence of defect populations can be determined through spectroscopic fingerprinting. Our results find an increasing propensity for the presence of phosphorus vacancy defects in samples deposited at lower temperatures but no evidence for comparable populations of boron vacancies in all the samples that have been studied. The absence of large amounts of boron vacancies is in line with the “self-healing” property of B12P2

An Australian national survey of First Nations careers in health services

A strong First Nations health workforce is necessary to meet community needs, health rights, and health equity. This paper reports the findings from a national survey of Australia’s First Nations people employed in health services to identify enablers and barriers to career development, including variations by geographic location and organisation type. A cross-sectional online survey was undertaken across professions, roles, and jurisdictions. The survey was developed collaboratively by Aboriginal and non Aboriginal academics and Aboriginal leaders. To recruit participants, the survey was promoted by key professional organisations, First Nations peak bodies and affiliates, and national forums. In addition to descriptive statistics, logistic regression was used to identify predictors of satisfaction with career development and whether this varied by geographic location or organisation type. Of the 332 participants currently employed in health services, 50% worked in regional and remote areas and 15% in Aboriginal Community-Controlled Health Organisations (ACCHOs) with the remainder in government and private health services. All enablers identified were associated with satisfaction with career development and did not vary by location or organisation type. “Racism from colleagues” and “lack of cultural awareness,” “not feeling supported by their manager,” “not having role models or mentors,” and “inflexible human resource policies” predicted lower satisfaction with career development only for those employed in government/other services. First Nations people leading career development were strongly supported. The implications for all workplaces are that offering even a few career development opportunities, together with supporting leadership by Aboriginal and Torres Strait Islander staff, can make a major difference to satisfaction and retention. Concurrently, attention should be given to building managerial cultural capabilities and skills in supporting First Nations’ staff career development, building cultural safety, providing formal mentors and addressing discriminatory and inflexible human resources policies

Coherent X-ray Diffractive Imaging; applications and limitations

The inversion of a diffraction pattern offers aberration-free diffraction-limited 3D images without the resolution and depth-of-field limitations of lens-based tomographic systems, the only limitation being radiation damage. We review our experimental results, discuss the fundamental limits of this technique and future plans.Comment: 7 pages, 8 figure

Modified bibenzimidazole ligands as spectator ligands in photoactive molecular functional Ru-polypyridine units? Implications from spectroscopy

The photophysical properties of Ruthenium-bipyridine complexes bearing a bibenzimidazole ligand were investigated. The nitrogens on the bibenzimidazole-ligand were protected, by adding either a phenylene group or a 1,2-ethandiyl group, to remove the photophysical dependence of the complex on the protonation state of the bibenzimidazole ligand. This protection results in the bibenzimidazole ligand contributing to the MLCT transition, which is experimentally evidenced by (resonance) Raman scattering in concert with DFT calculations for a detailed mode assignment in the (resonance) Raman spectra

Comparison of geometrical layouts for a multi-box aerosol model from a single-chamber dispersion study

Models are increasingly used to estimate and pre-emptively calculate the occupational exposure of airborne released particulate matter. Typical two-box models assume instant and fully mixed air volumes, which can potentially cause issues in cases with fast processes, slow air mixing, and/or large volumes. In this study, we present an aerosol dispersion model and validate it by comparing the modelled concentrations with concentrations measured during chamber experiments. We investigated whether a better estimation of concentrations was possible by using different geometrical layouts rather than a typical two-box layout. A one-box, two-box, and two three-box layouts were used. The one box model was found to underestimate the concentrations close to the source, while overestimating the concentrations in the far field. The two-box model layout performed well based on comparisons from the chamber study in systems with a steady source concentration for both slow and fast mixing. The three-box layout was found to better estimate the concentrations and the timing of the peaks for fluctuating concentrations than the one-box or two-box layouts under relatively slow mixing conditions. This finding suggests that industry-relevant scaled volumes should be tested in practice to gain more knowledge about when to use the two-box or the three-box layout schemes for multi-box models