3,449 research outputs found

    Extra-gastrointestinal manifestations of inflammatory bowel disease may be less common than previously reported

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    Extra-intestinal manifestations are well recognized in inflammatory bowel disease (IBD). To what extent the commonly recognized extra-intestinal manifestations seen in IBD patients are attributable to IBD is, however, not clear due to the limited number of controlled studies published

    Learner identities in the context of undergraduates: a case study

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    Background This paper examines the idea of learner identity of marketing undergraduates in the light of the widening participation agenda and identifies the challenges faced by those who enter HE by non-traditional routes. Purpose The research investigates the links between marketing students’ learner identities and their socio-economic backgrounds, previous experience of education and subject choice. It is hypothesised that marketing students, having selected a degree in a specific business discipline, are aware of employability issues and may be committed to their learning, leading to stronger learning identities than those evidenced in the literature about similar post-1992 universities. Sample The sample is all undergraduate marketing students at a University in England (the pseudonym UE is used throughout). The total available population was 135 and, of these, 99 completed the questionnaire. Non-UK students were excluded from the sample and one part-time student was excluded. This resulted in a total of 83 completed questionnaires for analysis. A sample of six self-selected students participated in follow-up interviews. Design and methods The primary research consists of a questionnaire administered to undergraduate marketing students and follow-up semi-structured interviews with a small number of students. The interviews examined issues in more depth and sought individual narratives of educational experience, with particular regard to the study of marketing and future employment and examined whether subject choice was in any way affected by previous educational experience, family background or ideas about employability. Results Links between learner identity and socio-economic background, educational experience and subject choice are shown. Nearly half the sample is shown to have positive learner identities but no link was found between subject choice and students’ thoughts on employability. Conclusions One should not presume students at lower-ranked universities to have poor learner identities as they may just be different, given their backgrounds and expectations, or actually be very strong. One should not presume that students of business disciplines are necessarily more focused on employability than other students.N/

    Trichomonas vaginalis Infection and Associated Risk Factors in a Socially-Marginalized Female Population in Coastal Peru

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    Objective. The epidemiology of Trichomonas vaginalis infection among sexually active socially-marginalized women in three urban, coastal Peruvian cities was examined in order to quantify the prevalence of trichomonas infection and identify associated risk factors. Methods. We conducted a cross-sectional, venue-based study of women from socially-marginalized populations in three coastal Peruvian cities. Results. Among the 319 women enrolled, the overall prevalence of trichomonal infection was 9.1% (95% CI, 5.9%–12.3%). The mean age was 26.3 years, and 35.5% reported having had unprotected intercourse with nonprimary partners and 19.8% reported two or more sex partners in the last three months. Trichomonal infection was associated with increased number of sex partners (PR 2.5, 95% CI 1.4–4.6) and unprotected sex with nonprimary partner in the last three months (PR 2.3, 95% CI 1.1–4.9). Conclusions. A moderately high prevalence of trichomonal infection was found among women in our study. Trichomonal infection was associated with unprotected sex and multiple sex partners. Efforts to control the continued spread of trichomonal infection are warranted

    Driving performance in older adults: Current measures, findings, and implications for roadway safety

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    BACKGROUND AND OBJECTIVES: Over 10,000 people a day turn 65 in the United States. For many older adults, driving represents an essential component of independence and is one of the most important factors in overall mobility. Recent survey studies in older adults suggest that up to 60% of older adult drivers with mild cognitive impairment, and up to 30% with dementia, continue to drive. The purpose of this review is to provide a comprehensive and detailed resource on the topics of cognition and driving for clinicians, researchers, and policymakers working on efforts related to older adult drivers. RESEARCH DESIGN AND METHODS: Publications on PubMed and Medline and discussions with experts working in geriatrics, technology, driving policy, psychology, and diverse aspects of driving performance were utilized to inform the current review. RESULTS: Research indicates that there is a complex and inverse correlation between multiple cognitive measures, driving performance, and risky driving behaviors. The fragmented nature of available peer-reviewed literature, and a reliance on correlative data, do not currently allow for the identification of the temporal and reciprocal nature of the interplay between cognition and driving endpoints. DISCUSSION AND IMPLICATIONS: There are currently no widely accepted definitions, conceptual models, or uniform set of analyses for conducting geriatric research that is focused on driving. Establishing conventions for conducting research that harmonizes the fields of geriatrics, cognition, and driving research is critical for the development of the evidence base that will inform clinical practice and road safety policy

    Genomic Distribution and Inter-Sample Variation of Non-CpG Methylation across Human Cell Types

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    DNA methylation plays an important role in development and disease. The primary sites of DNA methylation in vertebrates are cytosines in the CpG dinucleotide context, which account for roughly three quarters of the total DNA methylation content in human and mouse cells. While the genomic distribution, inter-individual stability, and functional role of CpG methylation are reasonably well understood, little is known about DNA methylation targeting CpA, CpT, and CpC (non-CpG) dinucleotides. Here we report a comprehensive analysis of non-CpG methylation in 76 genome-scale DNA methylation maps across pluripotent and differentiated human cell types. We confirm non-CpG methylation to be predominantly present in pluripotent cell types and observe a decrease upon differentiation and near complete absence in various somatic cell types. Although no function has been assigned to it in pluripotency, our data highlight that non-CpG methylation patterns reappear upon iPS cell reprogramming. Intriguingly, the patterns are highly variable and show little conservation between different pluripotent cell lines. We find a strong correlation of non-CpG methylation and DNMT3 expression levels while showing statistical independence of non-CpG methylation from pluripotency associated gene expression. In line with these findings, we show that knockdown of DNMTA and DNMT3B in hESCs results in a global reduction of non-CpG methylation. Finally, non-CpG methylation appears to be spatially correlated with CpG methylation. In summary these results contribute further to our understanding of cytosine methylation patterns in human cells using a large representative sample set

    Diethyl 2-{[2-(trifluoro­meth­yl)anil­ino]methyl­idene}propane­dioate

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    The title compound, C15H16F3NO4, is an N-substituted derivative of ortho-trifluoro­methyl­aniline featuring a twofold Michael system. The least-squares planes defined by the atoms of the phenyl ring and the atoms of the Michael system enclose an angle of 15.52 (5)°. Apart from classical intra­molecular N—H⋯O and N—H⋯F hydrogen bonds, inter­molecular C—H⋯O contacts are observed, the latter connecting the mol­ecules into chains along [110]. The shortest inter­centroid distance between two aromatic systems is 3.6875 (9) Å
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