2,888 research outputs found

    Developing sexual competence? Exploring strategies for the provision of effective sexualities and relationships education

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    School-based sexualities and relationships education (SRE) offers one of the most promising means of improving young people's sexual health through developing 'sexual competence'. In the absence of evidence on whether the term holds the same meanings for young people and adults (e.g. teachers, researchers, policy-makers), the paper explores 'adult' notions of sexual competence as construed in research data and alluded to in UK Government guidance on SRE, then draws on empirical research with young people on factors that affect the contexts, motivations and outcomes of sexual encounters, and therefore have implications for sexual competence. These data from young people also challenge more traditional approaches to sexualities education in highlighting disjunctions between the content of school-based input and their reported sexual experience. The paper concludes by considering the implications of these insights for developing a shared notion of what SRE is trying to achieve and suggestions for recognition in the content and approaches to SRE.</p

    Development and validation of a tool to measure belongingness as a proxy for participation in undergraduate clinical learning

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    This is the author accepted manuscript. The final version is available from Taylor & Francis via the DOI in this record.Background ‘Participation’ in a ‘community of practice’ is often proposed as a mechanism for clinical learning; however, the use of both terms is variable – ranging from technical to vernacular. Belongingness is a related single concept and development of a tool that measures belongingness may therefore be useful in adding to our understanding of when participation and hence learning takes place in clinical settings. Methods After identifying relevant material from the literature, a draft belongingness assessment tool was developed, based on previously published work. This was piloted on 181 undergraduate medical students and the results subjected to factor analysis. The final version was then used to identify whether differences exist between two different clinical teaching environments. Results Our belongingness assessment tool had internal and external validity, with Cronbach’s alpha = 0.940, and detected statistically significant differences between primary and secondary care teaching environments. Conclusions The belongingness scale described in this paper is a valid tool for the study of undergraduate medical students. This has the potential to investigate how variation in student experiences of participation in communities of practice influences learning. This tool revealed significant differences in student belongingness between primary and secondary care learning environments

    Estimating Small Area Income Deprivation: An Iterative Proportional Fitting Approach

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    Small area estimation and in particular the estimation of small area income deprivation has potential value in the development of new or alternative components of multiple deprivation indices. These new approaches enable the development of income distribution threshold based as opposed to benefit count based measures of income deprivation and so enable the alignment of regional and national measures such as the Households Below Average Income with small area measures. This paper briefly reviews a number of approaches to small area estimation before describing in some detail an iterative proportional fitting based spatial microsimulation approach. This approach is then applied to the estimation of small area HBAI rates at the small area level in Wales in 2003-5. The paper discusses the results of this approach, contrasts them with contemporary ‘official’ income deprivation measures for the same areas and describes a range of ways to assess the robustness of the results

    VLBI Images of 49 Radio Supernovae in Arp 220

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    We have used a Very Long Baseline Interferometry (VLBI) array at 18cm wavelength to image the nucleus of the luminous IR galaxy Arp 220 at ~1 pc linear resolution, and with very high sensitivity. The resulting map has an rms of 5.5 microJy/beam, and careful image analysis results in 49 confirmed point sources ranging in flux density from 1.2 mJy down to ~60 microJy. Comparison with high sensitivity data from 12 months earlier reveals at least four new sources. The favored interpretation of these sources is that they are radio supernovae, and if all new supernovae are detectable at this sensitivity, a resulting estimate of the supernova rate in the Arp 220 system is 4 +/- 2 per year. The implied star formation rate is sufficient to power the entire observed far-infrared luminosity of the galaxy. The two nuclei of Arp 220 exhibit striking similarities in their radio properties, though the western nucleus is more compact, and appears to be ~3 times more luminous than the eastern nucleus. There are also some puzzling differences, and differential free-free absorption, synchrotron aging and expansion losses may all be playing a role. Comparison with the nearby starburst galaxy M82 supports the hypothesis that the activity in Arp 220 is essentially a scaled-up version of that in M82.Comment: 24 pages, 3 figures, 1 table. Accepted for publication in Ap.

    Obligations in the Shade: The Application of Fiduciary Directors’ Duties to Shadow Directors

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    This paper argues that shadow directors, as defined in English law, ought to owe the full range of directors’ duties, both fiduciary and non-fiduciary, enacted in the Companies Act 2006 (CA 2006), ss 171-177, to the relevant company under their influence. Following the enactment of the recent Small Business, Enterprise and Employment Act (SBEEA) 2015, these general duties are likely to apply to shadow directors, although there is still a case to be made as to why shadow directors should owe fiduciary duties to the relevant company. It is argued here that such a relationship is fiduciary in nature, but the current approach deployed in the English courts, based upon the application of Finn’s originally formulated ‘undertaking’ test alone, is inadequate. Given these inadequacies, it is proposed that the Canadian ‘power and discretion’ test be deployed alongside the ‘undertaking’ test, in order to provide a far more comprehensive justification for the application of fiduciary obligations to shadow directors. This position is supported by establishing a theoretical basis for the ‘power and discretion’ test, via Paul Miller’s ‘fiduciary powers theory’, as well as considering the application of such a test to shadow directors

    VLBI Imaging of Luminous Infrared Galaxies: AGN Cores in Mrk231, UGC 5101 & NGC 7469

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    We report 18cm VLBI continuum imaging observations at 5 mas resolution for UGC 5101, NGC 7469, and Mrk 231, all part of a sample of Luminous Infrared Galaxies which have been shown to have strong VLBI radio cores. The radio morphology of these three systems on VLBI scales is AGN-like, with well-defined ridgelines and high-brightness yet spatially resolved components. The structure and flux densities of these VLBI components are not consistent with starburst generated radio supernovae of the type found in Arp 220. On scales of 100pc the radio continuum in all three objects appears to be dominated by an AGN, not a starburst. Radio emission on larger scales may well originate in a less compact circumnuclear star-forming region. Confirming and extending VLBI imaging of Mrk 231 by Ulvestad et al. (1999), our continuum image shows a triple structure, with a core and two lobes, classifying it as a Compact Symmetric Object (CS0). If the southern (primary) lobe/hot-spot in Mrk 231 is confined by ram pressure, we estimate a lobe advance speed, va∌10−4cv_a \sim 10^{-4}c, and an age for the jet/compact source, <106yr< 10^6 yr. We have also imaged the 1667 MHz OH maser emission in Mrk 231, which is extended on scales of 50--100 milliarcsec (40--80 pc) and probably coincides with the inner region of the disk which is seen in CO emission and HI absorption. Among OH megamasers studied at high sensitivity with mas resolution, Mrk 231 is unique in the stringent upper limits placed upon the flux density of compact OH structures of the type found in Arp 220 and other LIGs. It is possible that the circumnuclear environment of Mrk 231 has been sufficiently disrupted by the emergent QSO that the cool, dense clouds necessary for such compact masers no longer exist.Comment: 43 pages, 7 figure

    Target Selection for the SDSS-IV APOGEE-2 Survey

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    APOGEE-2 is a high-resolution, near-infrared spectroscopic survey observing roughly 300,000 stars across the entire sky. It is the successor to APOGEE and is part of the Sloan Digital Sky Survey IV (SDSS-IV). APOGEE-2 is expanding upon APOGEE's goals of addressing critical questions of stellar astrophysics, stellar populations, and Galactic chemodynamical evolution using (1) an enhanced set of target types and (2) a second spectrograph at Las Campanas Observatory in Chile. APOGEE-2 is targeting red giant branch (RGB) and red clump (RC) stars, RR Lyrae, low-mass dwarf stars, young stellar objects, and numerous other Milky Way and Local Group sources across the entire sky from both hemispheres. In this paper, we describe the APOGEE-2 observational design, target selection catalogs and algorithms, and the targeting-related documentation included in the SDSS data releases.Comment: 19 pages, 6 figures. Accepted to A

    The Determinants of young Adult Social well-being and Health (DASH) study: diversity, psychosocial determinants and health.

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    Purpose: The Determinants of young Adult Social well-being and Health longitudinal study draws on life-course models to understand ethnic differences in health. A key hypothesis relates to the role of psychosocial factors in nurturing the health and well-being of ethnic minorities growing up in the UK. We report the effects of culturally patterned exposures in childhood. Methods: In 2002/2003, 6643 11–13 year olds in London, ~80 % ethnic minorities, participated in the baseline survey. In 2005/2006, 4782 were followed-up. In 2012–2014, 665 took part in a pilot follow-up aged 21–23 years, including 42 qualitative interviews. Measures of socioeconomic and psychosocial factors and health were collected. Results: Ethnic minority adolescents reported better mental health than White British, despite more adversity (e.g. economic disadvantage, racism). It is unclear what explains this resilience but findings support a role for cultural factors. Racism was an adverse influence on mental health, while family care and connectedness, religious involvement and ethnic diversity of friendships were protective. While mental health resilience was a feature throughout adolescence, a less positive picture emerged for cardio-respiratory health. Both, mental health and cultural factors played a role. These patterns largely endured in early 20s with family support reducing stressful transitions to adulthood. Education levels, however, signal potential for socio-economic parity across ethnic groups
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