Attrition from Health Professional Schools in a Canadian University

A descriptive study was conducted in order to identify the incidence of student voluntary withdrawal from undergraduate programs of the schools of the Faculty of Health Professions, in a Canadian university, over a two-year period; to identify students' expressed reasons for voluntary withdrawal; and, to develop a profile of characteristics of students who withdraw voluntarily and those who are successful academically and continue/persist through to graduation. There were 30 respondents from among the 42 withdrawing students (73.2% response rate) and 85 respondents from among 120 eligible graduates sampled (70.8% response rate). Dropouts from the health professional schools in this Canadian university were typically older, married, and employed; considered their program less difficult; had not participated in orientation or contacted writers' workshop, clubs, sports teams, student health, faculty advisors, or their profession's clientele. These characteristics appear to reflect facets of academic integration more than social integration. Former students cited dissatisfaction with the program/curriculum content, uncertainty about educational/occupational goals, and stress associated with the profession as the three most important reasons for voluntary withdrawal.Une étude descriptive a été menée dans le but premièrement de déterminer quel était le nombre moyen d'étudiants qui, sur une période de deux ans, se retiraient des cours de la Faculté des sciences de la santé d'une université canadienne auxquels ils s'étaient inscrits; deuxièmement d'inventorier les raisons pour lesquelles ces étudiants avaient quitté leurs cours ; et troisièmement de dégager le profil des étudiants susceptibles d'abandonner leurs cours et celui de ceux qui ont des chances de réussir et de persévérer jusqu'à l'obtention de leur diplôme. Trente des 42 étudiants ou étudiantes ayant quitté leurs cours (soit 73,2%) et 85 des 120 futur(e)s diplômé(e)s (70,8%) ont répondu au sondage. Les étudiants qui avaient abandonné leurs cours à la Faculté des sciences de la santé de cette université canadienne étaient d'une façon générale plus âgés que les autres, ils étaient mariés, travaillaient, trouvaient leurs cours moins difficiles que les autres étudiants, n'avaient jamais suivi de sessions d'orientation, ne faisaient partie ni d'ateliers d'écriture ni de clubs ni d'équipes sportives, n'avaient jamais eu affaire aux organismes étudiants de santé, aux conseillers pédagogiques ni à la clientèle visée par leur profession. Ces étudiants se disaient mécontents du contenu des programmes, incertains de leurs objectifs professionnels ou académiques, et inquiets relativement aux exigences de la profession. Ces trois points figuraient parmi les raisons les plus importantes qui les avaient conduits à abandonner leurs cours

Les conséquences du sida dans la vie des hémophiles et de leurs soignants familiaux au Québec : stress, réponse au stress et soutien social

Le présent article présente les résultats de l'échantillon québécois d'une enquête nationale sur les besoins de soutien des hémophiles atteints du sida ou du VIH. Portant aussi sur les besoins des soignants et des proches (endeuillés ou non) de ces personnes, cette enquête se fondait sur une problématique qui considère le soutien social comme un moyen de faire face au stress. Les participants ont signalé avoir éprouvé plus de stress à cause de l'absence de soutien ou d'un soutien négatif que par suite de la détérioration physique due à la maladie. La question de la confidentialité a été fréquemment soulevée. En général, les participants se sont déclarés satisfaits du soutien reçu, surtout de la part des membres de leurs familles.The following article focuses on the Québec portion of a national survey on the care needed by hemophiliacs with AIDS or having contracted the HIV virus. The survey was based on an approach that considers social support as a means to face stress. It also examined the needs of dispensers of care and relatives (whether mourning or not) of these persons. Participants revealed having experienced more stress because of an absence of support or simply negative support, than because of the physical deterioration caused by the disease. In addition, the question of confidentiality was often raised. In general, participants said they were satisfied with the support they had received, especially on the part of members of their family

Introduction to \u3ci\u3eCrossroads: Frankfurt am Main as Market for Northern Art 1500–1800\u3c/i\u3e

Table of Contents Inhaltsverzeichnis Simple curiosity has sparked many a book, and that is true of this book, too. We wanted to know what role Frankfurt am Main played in the rise of the commercial art market in general and in particular of painting and printmaking during the early modern period. We were surprised to find no ready answer to our question, for although the Frankfurt Book Fair remains a major publishing event, art historians have not yet focused sufficiently on its precursor, the Frankfurt fair, an important location for the trade in paintings and prints. Frankfurt\u27s hub function as a city conveniently situated between Antwerp and Nuremberg has often been pointed out, but not the specific characteristics of the Frankfurt art market, the painters, printers, and art dealers. The patchy scholarship we encountered led to even more questions. What figures and what motives brought artists to Frankfurt and where did they come from? Where did visitors stay, and how might they have experienced the city? Who intersected with the art market in such areas as commerce or book and intaglio printing? What did elite culture in the city look like, and how did it tie Frankfurt to wider intellectual and artistic circles? How did changing the location of the imperial coronation from Aachen to Frankfurt in 1562 with coronation feasts, ephemeral art, and new visitors influence the art market? Seeking answers, we issued a call for papers to be presented at the 2015 meeting of the Renaissance Society of America (RSA) in Berlin. Some of the papers from the three panels of our Historians of Netherlandish Art (HNA)-sponsored session appear here, and others originated with a symposium organized by Prof. Dr. Jochen Sander and Dr. Berit Wagner in July of that year at the Kunstgeschichtliches Institut of the Goethe-Universitat in Frankfurt. Still other contributions are responses to a second call we issued later that year. We wanted our contributors to paint a clearer picture of Frankfurt and its art market(s) from 1500-1800, especially with regards to the fair. Authors\u27 Biographies I Viten der Autore

The Radio Light Curve of the Gamma-Ray Nova in V407 Cyg: Thermal Emission from the Ionized Symbiotic Envelope, Devoured from Within by the Nova Blast

We present multi-frequency radio observations of the 2010 nova event in the symbiotic binary V407 Cygni, obtained with the Karl G. Jansky Very Large Array and spanning 1-45 GHz and 17-770 days following discovery. This nova---the first ever detected in gamma rays---shows a radio light curve dominated by the wind of the Mira giant companion, rather than the nova ejecta themselves. The radio luminosity grew as the wind became increasingly ionized by the nova outburst, and faded as the wind was violently heated from within by the nova shock. This study marks the first time that this physical mechanism has been shown to dominate the radio light curve of an astrophysical transient. We do not observe a thermal signature from the nova ejecta or synchrotron emission from the shock, due to the fact that these components were hidden behind the absorbing screen of the Mira wind. We estimate a mass loss rate for the Mira wind of Mdot_w ~ 10^-6 M_sun/yr. We also present the only radio detection of V407 Cyg before the 2010 nova, gleaned from unpublished 1993 archival VLA data, which shows that the radio luminosity of the Mira wind varies by a factor of >~20 even in quiescence. Although V407 Cyg likely hosts a massive accreting white dwarf, making it a candidate progenitor system for a Type Ia supernova, the dense and radially continuous circumbinary material surrounding V407 Cyg is inconsistent with observational constraints on the environments of most Type Ia supernovae.Comment: Resubmitted to ApJ after incorporating referee's comment

Radio studies of novae: a current status report and highlights of new results

Novae, which are the sudden visual brightening triggered by runaway thermonuclear burning on the surface of an accreting white dwarf, are fairly common and bright events. Despite their astronomical significance as nearby laboratories for the study of nuclear burning and accretion phenomena, many aspects of these common stellar explosions are observationally not well-constrained and remain poorly understood. Radio observations, modeling and interpretation can potentially play a crucial role in addressing some of these puzzling issues. In this review on radio studies of novae, we focus on the possibility of testing and improving the nova models with radio observations, and present a current status report on the progress in both the observational front and theoretical developments. We specifically address the issues of accurate estimation of ejecta mass, multi-phase and complex ejection phenomena, and the effect of a dense environment around novae. With highlights of new observational results, we illustrate how radio observations can shed light on some of these long-standing puzzles.Comment: 19 pages, 4 figures. Review article published in the Bulletin of the Astronomical Society of India (BASI) special issue on nova

Forebrain CRF₁ modulates early-life stress-programmed cognitive deficits

Childhood traumatic events hamper the development of the hippocampus and impair declarative memory in susceptible individuals. Persistent elevations of hippocampal corticotropin-releasing factor (CRF), acting through CRF receptor 1 (CRF1), in experimental models of early-life stress have suggested a role for this endogenous stress hormone in the resulting structural modifications and cognitive dysfunction. However, direct testing of this possibility has been difficult. In the current study, we subjected conditional forebrain CRF1 knock-out (CRF1-CKO) mice to an impoverished postnatal environment and examined the role of forebrain CRF1 in the long-lasting effects of early-life stress on learning and memory. Early-life stress impaired spatial learning and memory in wild-type mice, and postnatal forebrain CRF overexpression reproduced these deleterious effects. Cognitive deficits in stressed wild-type mice were associated with disrupted long-term potentiation (LTP) and a reduced number of dendritic spines in area CA3 but not in CA1. Forebrain CRF1 deficiency restored cognitive function, LTP and spine density in area CA3, and augmented CA1 LTP and spine density in stressed mice. In addition, early-life stress differentially regulated the amount of hippocampal excitatory and inhibitory synapses in wild-type and CRF1-CKO mice, accompanied by alterations in the neurexin-neuroligin complex. These data suggest that the functional, structural and molecular changes evoked by early-life stress are at least partly dependent on persistent forebrain CRF1 signaling, providing a molecular target for the prevention of cognitive deficits in adults with a history of early-life adversity

Sea urchin vault structure, composition, and differential localization during development

BACKGROUND: Vaults are intriguing ribonucleoprotein assemblies with an unknown function that are conserved among higher eukaryotes. The Pacific coast sea urchin, Strongylocentrotus purpuratus, is an invertebrate model organism that is evolutionarily closer to humans than Drosophila and C. elegans, neither of which possesses vaults. Here we compare the structures of sea urchin and mammalian vaults and analyze the subcellular distribution of vaults during sea urchin embryogenesis. RESULTS: The sequence of the sea urchin major vault protein (MVP) was assembled from expressed sequence tags and genome traces, and the predicted protein was found to have 64% identity and 81% similarity to rat MVP. Sea urchin MVP includes seven ~50 residue repeats in the N-terminal half of the protein and a predicted coiled coil domain in the C-terminus, as does rat MVP. A cryoelectron microscopy (cryoEM) reconstruction of isolated sea urchin vaults reveals the assembly to have a barrel-shaped external structure that is nearly identical to the rat vault structure. Analysis of the molecular composition of the sea urchin vault indicates that it contains components that may be homologs of the mammalian vault RNA component (vRNA) and protein components (VPARP and TEP1). The sea urchin vault appears to have additional protein components in the molecular weight range of 14–55 kDa that might correspond to molecular contents. Confocal experiments indicate a dramatic relocalization of MVP from the cytoplasm to the nucleus during sea urchin embryogenesis. CONCLUSIONS: These results are suggestive of a role for the vault in delivering macromolecules to the nucleus during development

The effect of Psoroptes ovis infestation on ovine epidermal barrier function

Sheep scab is an intensively pruritic, exudative and allergic dermatitis of sheep caused by the ectoparasitic mite Psoroptes ovis. The purpose of the present study was to investigate the effect of P. ovis infestation on different components of the ovine epidermal barrier within the first 24 hours post-infestation (hpi). To achieve this, the expression of epidermal differentiation complex (EDC) genes and epidermal barrier proteins, the nature and severity of epidermal pathology and transepidermal water loss (TEWL) were evaluated. By 1 hpi a significant dermal polymorphonuclear infiltrate and a significant increase in TEWL with maximal mean TEWL (598.67 g/m(2)h) were observed. Epidermal pathology involving intra-epidermal pustulation, loss of epidermal architecture and damage to the basement membrane was seen by 3 hpi. Filaggrin and loricrin protein levels in the stratum corneum declined significantly in the first 24 hpi and qPCR validation confirmed the decrease in expression of the key EDC genes involucrin, filaggrin and loricrin observed by microarray analysis, with 5.8-fold, 4.5-fold and 80-fold decreases, respectively by 24 hpi. The present study has demonstrated that early P. ovis infestation disrupts the ovine epidermal barrier causing significant alterations in the expression of critical barrier components, epidermal pathology, and TEWL. Many of these features have also been documented in human and canine atopic dermatitis suggesting that sheep scab may provide a model for the elucidation of events occurring in the early phases of atopic sensitisation

Effect of a Lay Counselor Intervention on Prevention of Major Depression in Older Adults Living in Low- and Middle-Income Countries:A Randomized Clinical Trial

Importance: Preventing depression in older adults living in low- and middle-income countries is important because of the scarcity of treatment resources and the risk of disability, suicide, and dementia. Objective: To assess whether an intervention for depression prevention provided by lay counselors is effective in older adults from low- and middle-income countries. Design, Setting, and Participants: This parallel-group randomized clinical trial with masked outcome assessment was performed in 181 older adults (≥60 years) with subsyndromal depressive symptoms at rural and urban primary care clinics in Goa, India. The first participant entered the trial on March 31, 2015, and the last exited on June 2, 2017. Data analysis used the intention-to-treat approach. Interventions: Lay counselors provided problem-solving therapy, brief behavioral treatment for insomnia, education in self-care of common medical disorders such as diabetes, and assistance in accessing medical and social programs. Main Outcomes and Measures: The main outcome was incidence of major depressive episodes. The study also assessed symptom change during 12 months (12-item General Health Questionnaire [GHQ-12]; score range of 0 to 12, with higher scores indicating greater symptoms of depression and anxiety), functional status (World Health Organization Disability Assessment Schedule 2.0; score range of 12 to 60, with higher scores indicating greater disability), cognition (Hindi Mini-Mental State Examination; score range of 0 to 30, with higher scores indicating better cognitive functioning), blood pressure, and body mass index to provide further clinical context. Results: The study enrolled 181 participants (mean [SD] age, 69.6 [7.2] years; 114 [63.0%] female): 91 to the intervention arm (depression in later life [DIL] intervention) and 90 to care as usual (CAU). Incident episodes of major depression were lower in the DIL intervention than in the CAU group (4.40% vs 14.44%; log-rank P =.04; number needed to treat, 9.95; 95% CI, 5.12-182.43). The 12-month Kaplan-Meier estimates of percentage of depression-free participants were 95.1% (95% CI, 90.5%-99.9%) in the DIL group vs 87.4% (95% CI, 80.4%-95.1%) in the CAU group. The incidence of depressive symptoms (GHQ-12) was also less (12-month mean difference, -1.18; 95% CI, -2.03 to -0.31; group × time interaction P <.001). There were no changes in measures of disability or cognition. The DIL intervention was associated with a significantly greater lowering of systolic blood pressure (12-month mean difference, -6.98; 95% CI, -11.96 to -2.01; group × time interaction P <.001) and change in body mass index (12-month mean difference, 0.23; 95% CI, -0.97 to 1.43; P =.04). Conclusions and Relevance: The DIL intervention is effective for preventing episodes of major depression in older persons with subsyndromal symptoms. If replicated, the DIL intervention may be effective in older adults living in low- and middle-income countries