Life Experiences of Black Student-Athletes in Revenue-Producing Sports: A Descriptive Empirical Analysis

Recent NCAA reform (Propositions 48 and 42) have made imperative a better understanding of the social and psychological factor affecting black student-athletes in revenue-producing sports. This study focused on the college experience of black student-athletes at 42 NCAA Division I schools in comparison to white student-athletes and other black college students in four areas: demographic and academic background; college life experience; mental health; and social support. Black student-athletes differed from both comparison groups across all four topic areas. Results of the comparison were discissed, and policy recommendations were presented. The present study examined data from a national representative sample of full-time undergraduate student-athletes at Division I institutions commissioned by the Presidents Commission of the NCAA. Forty-two of the 291 Division I institutions for 1987-1988 were randomly selected to participate. lnstitutions were relatively evenly distributed across the NCAA's geographic districts and regions and were representative on a variety of indicators of institutional and student body characteristics, as well as sports history and involvement. A total of 5123 student-athletes and students was sampled. This study focused on three subgroups within the sample: black student-athletes participating in revenue-producing sports n=847); white student-athletes participating in revenue-producing sports (n=1161); and a random sample of black students who were not members of an athletic team (n=511). The participants' informed consent was obtained. Questionnaires were administered in group of four or five students, with at least one data collector present. They had four categories: demographic and academic background, college life experiences, mental health status, and social support. Results suggested that black student-athletes enter the university with very different educational and socio-cultural backgrounds than both white student-athletes and other black students. Black student-athletes have significantly lower family income and less educated parents. Greater differences erre found when comparing black student-athletes with other black students than with white student-athletes. Black and white student-athletes do not differ in the importance they ascribe to earning a degree, their satisfaction in their relationship with coaches, and their overall satisfaction with life

Incidence and risk factors for placenta accreta/increta/percreta in the UK: a national case-control study.

Placenta accreta/increta/percreta is associated with major pregnancy complications and is thought to be becoming more common. The aims of this study were to estimate the incidence of placenta accreta/increta/percreta in the UK and to investigate and quantify the associated risk factors

Strong light-matter coupling in bulk GaN-microcavities with double dielectric mirrors fabricated by two different methods

Two routes for the fabrication of bulk GaN microcavities embedded between two dielectric mirrors are described, and the optical properties of the microcavities thus obtained are compared. In both cases, the GaN active layer is grown by molecular beam epitaxy on (111) Si, allowing use of selective etching to remove the substrate. In the first case, a three period Al0.2Ga0.8N / AlN Bragg mirror followed by a lambda/2 GaN cavity are grown directly on the Si. In the second case, a crack-free 2,mu m thick GaN layer is grown, and progressively thinned to a final thickness of lambda. Both devices work in the strong coupling regime at low temperature, as evidenced by angle-dependent reflectivity or transmission experiments. However, strong light-matter coupling in emission at room temperature is observed only for the second one. This is related to the poor optoelectronic quality of the active layer of the first device, due to its growth only 250 nm above the Si substrate and its related high defect density. The reflectivity spectra of the microcavities are well accounted for by using transfer matrix calculations. (C) 2010 American Institute of Physics. [doi:10.1063/1.3477450

Improved Algorithms for Approximate String Matching (Extended Abstract)

The problem of approximate string matching is important in many different areas such as computational biology, text processing and pattern recognition. A great effort has been made to design efficient algorithms addressing several variants of the problem, including comparison of two strings, approximate pattern identification in a string or calculation of the longest common subsequence that two strings share. We designed an output sensitive algorithm solving the edit distance problem between two strings of lengths n and m respectively in time O((s-|n-m|)min(m,n,s)+m+n) and linear space, where s is the edit distance between the two strings. This worst-case time bound sets the quadratic factor of the algorithm independent of the longest string length and improves existing theoretical bounds for this problem. The implementation of our algorithm excels also in practice, especially in cases where the two strings compared differ significantly in length. Source code of our algorithm is available at http://www.cs.miami.edu/\~dimitris/edit_distanceComment: 10 page

Bistable molecular conductors with a field-switchable dipole group

A class of bistable "stator-rotor" molecules is proposed, where a stationary bridge (stator) connects the two electrodes and facilitates electron transport between them. The rotor part, which has a large dipole moment, is attached to an atom of the stator via a single sigma bond. Hydrogen bonds formed between the rotor and stator make the symmetric orientation of the dipole unstable. The rotor has two potential minima with equal energy for rotation about the sigma bond. The dipole orientation, which determines the conduction state of the molecule, can be switched by an external electric field that changes the relative energy of the two potential minima. Both orientation of the rotor correspond to asymmetric current-voltage characteristics that are the reverse of each other, so they are distinguishable electrically. Such bistable stator-rotor molecules could potentially be used as parts of molecular electronic devices.Comment: 8 pages, 7 figure

Dating and intimate partner violence among young persons ages 15-30 : evidence from a systematic review

While there has been much empirical research on adult dating violence, only recently has research began to also focus on young adult dating violence in general and teen dating violence specifically. With recognition of the growing research and media attention toward youth and young adult dating violence, the current study provides a systematic review of the extant literature devoted toward examinations of dating/intimate partner violence among individuals aged 15 to 30 and, more narrowly, on the prior research that has tested the effectiveness of dating/intimate partner violence interventions with this age group. Results from a comprehensive literature search of a number of existing databases revealed 169 studies that met the inclusion criteria, and 42 of these 169 studies were also characterized as intervention studies. Descriptive results are discussed for the 169 studies overall, and for the 42 intervention studies in particular in greater detail. Evidence gleaned from this systematic review revealed a number of similarities and differences between the studies in general, but also pointed toward the potential effectiveness of interventions to prevent the occurrence and re-occurrence of dating/intimate partner violence. Study limitations and directions for future research are also discussed. •169 studies met the inclusion criteria for this review.•42 of the 169 studies were classified as intervention studies.•There are a number of promising interventions

Displaced Voices: A Journal of Migration, Archives and Cultural Heritage, Volume 3 Issue 1 (Spring 2023)

Twentieth Century Histories of Civic Society’s Responses to Crises of Displacement: A Special Issue to mark the 70th Anniversary of Refugee Council Displaced Voices is a biannual digital magazine produced twice a year by the Living Refugee Archive team at the University of East London. Displaced Voices aims to provide a digital platform for activists, archivists, researchers, practitioners and academics to contribute to issues pertaining to refugee and migration history; refugee and migrant rights; social justice; cultural heritage and archives. We welcome a range of contributions to the magazine including articles of between 1000-2000 words; reports on fieldwork in archival collections; book recommendations and reviews; and more creative pieces including (but not limited too) cartoons; photography; and poetry. We would also welcome news on activities; publication of reports, projects; letters and news from your own networks. We welcome submissions from all writers whether you are a student, practitioner, activist or established academic. The Displaced Voices online magazine is born out of the collaborative and intersectional work that we have been undertaking through our work with the refugee and migration archives housed at the University of East London. Our work to date has explored the intersections of refugee and migration studies with narrative and life history research linked to oral history methods and archival approaches to the preservation, documentation and accessibility of archival resources recording the refugee experience. This magazine is a collaborative project between the Living Refugee Archive at the University of East London; the Oral History Society Migration Special Interest Group and the International Association for the Study of Forced Migration Working Group on the History of Forced Migration and Refugees. Thematically we are looking to engage with articles that explore the intersection of refugee and forced migration studies; history and cultural heritage studies; narrative research; oral history and archival science

Quality of care in adult patients with inflammatory bowel disease transferring between healthcare providers: multicentre audit

Background: Inflammatory bowel disease (IBD) predominantly affects young adults at critical socioeconomic periods of their lives. There are no studies examining the process of transfer of care for adult patients with IBD changing healthcare providers. Our aims were to assess the quality of referral information provided when patients with an established IBD diagnosis transfer care between heathcare providers and to assess the impact of referral quality on patient outcome. / Methods: Retrospective data pertaining to IBD transfer of care referrals were collected from 16 hospitals across London over a 2-month period. Data were collected on patient demographics, source and content of referral and cross-referenced with an established transfer of care checklist. Patient outcome within the 6 months following transfer was also documented. / Results: 154 cases were identified, over half of which transferred due to patient relocation. Details included in transfer letters were in many cases incomplete. In over 70% of cases, the letter came from primary care, including when a tertiary opinion was sought. Although referrals from primary care contained fewer patient data points, there was no association with poor patient outcomes at 6 months. / Conclusion: This is the first study examining the quality of transfer of care in adult patients with IBD. We highlighted a significant and underreported issue and found that the majority of referrals were led by primary care. Though the inclusion in the referral of fewer data points was not associated with poor outcomes, we highlighted an area where gastroenterologists might take more responsibility to provide smooth and robust transfer of care

Robust Magnetic Polarons in Type-II (Zn,Mn)Te Quantum Dots

We present evidence of magnetic ordering in type-II (Zn, Mn) Te quantum dots. This ordering is attributed to the formation of bound magnetic polarons caused by the exchange interaction between the strongly localized holes and Mn within the dots. In our photoluminescence studies, the magnetic polarons are detected at temperatures up to ~ 200 K, with a binding energy of ~ 40 meV. In addition, these dots display an unusually small Zeeman shift with applied field (2 meV at 10 T). This behavior is explained by a small and weakly temperature-dependent magnetic susceptibility due to anti-ferromagnetic coupling of the Mn spins