Supernova Remnants in the Magellanic Clouds III: An X-ray Atlas of LMC Supernova Remnants

We have used archival ROSAT data to present X-ray images of thirty-one supernova remnants (SNRs) in the Large Magellanic Cloud (LMC). We have classified these remnants according to their X-ray morphologies, into the categories of Shell-Type, Diffuse Face, Centrally Brightened, Point-Source Dominated, and Irregular. We suggest possible causes of the X-ray emission for each category, and for individual features of some of the SNRs.Comment: 27 pages, 6 figures (9 figure files). To appear in the Supplement Series of the Astrophysical Journal, August 1999 Vol. 123 #

Understanding Healthcare Students’ Experiences of Racial Bias: A Narrative Review of the Role of Implicit Bias and Potential Interventions in Educational Settings

Implicit racial bias is a persistent and pervasive challenge within healthcare education and training settings. A recent systematic review reported that 84% of included studies (31 out of 37) showed evidence of slight to strong pro-white or light skin tone bias amongst healthcare students and professionals. However, there remains a need to improve understanding about its impact on healthcare students and how they can be better supported. This narrative review provides an overview of current evidence regarding the role of implicit racial bias within healthcare education, considering trends, factors that contribute to bias, and possible interventions. Current evidence suggests that biases held by students remain consistent and may increase during healthcare education. Sources that contribute to the formation and maintenance of implicit racial bias include peers, educators, the curriculum, and placements within healthcare settings. Experiences of implicit racial bias can lead to psychosomatic symptoms, high attrition rates, and reduced diversity within the healthcare workforce. Interventions to address implicit racial bias include an organizational commitment to reducing bias in hiring, retention, and promotion processes, and by addressing misrepresentation of race in the curriculum. We conclude that future research should identify, discuss, and critically reflect on how implicit racial biases are enacted and sustained through the hidden curriculum and can have detrimental consequences for racial and ethnic minority healthcare students

Optimizing task- sharing in abortion care in Ghana: Stakeholder perspectives

Ghana has made progress in expanding providers in abortion care but access to the service is still a challenge. We explored stakeholder perspectives on task- sharing in abortion care and the opportunities that exist to optimize this strategy in Ghana. We purposively sampled 12 representatives of agencies that played a key role in expanding abortion care to include midwives for key informant interviews. All interviews were audio recorded, transcribed verbatim, and then coded for thematic analysis. Stakeholders indicated that Ghana was motivated to practice task- sharing in abortion care because unsafe abortion was contributing significantly to maternal mortality. They noted that the Ghana Health Service utilized the high maternal mortality in the country at the time, advancements in medicine, and the lack of clarity in the definition of the term - health practitioner- to work with partner nongovernmental organizations to successfully task- share abortion care to include midwives. Access, however, is still poor and provider stigma continues to contribute significantly to conscientious objection. This calls for further task- sharing in abortion care to include medical or physician assistants, community health officers, and pharmacists to ensure that more women have access to abortion care.Midwives are providing abortion care in Ghana through task- sharing; access is still limited, therefore further expansion to include physician assistants and community health nurses is needed.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/156176/1/ijgo13000.pd

Stratified dispersal and increasing genetic variation during the invasion of Central Europe by the western corn rootworm, Diabrotica virgifera virgifera

Invasive species provide opportunities for investigating evolutionary aspects of colonization processes, including initial foundations of populations and geographic expansion. Using microsatellite markers and historical information, we characterized the genetic patterns of the invasion of the western corn rootworm (WCR), a pest of corn crops, in its largest area of expansion in Europe: Central and South-Eastern (CSE) Europe. We found that the invaded area probably corresponds to a single expanding population resulting from a single introduction of WCR and that gene flow is geographically limited within the population. In contrast to what is expected in classical colonization processes, an increase in genetic variation was observed from the center to the edge of the outbreak. Control measures against WCR at the center of the outbreak may have decreased effective population size in this area which could explain this observed pattern of genetic variation. We also found that small remote outbreaks in southern Germany and north-eastern Italy most likely originated from long-distance dispersal events from CSE Europe. We conclude that the large European outbreak is expanding by stratified dispersal, involving both continuous diffusion and discontinuous long-distance dispersal. This latter mode of dispersal may accelerate the expansion of WCR in Europe in the future