An assessment of post-plague reintroduced native white-clawed crayfish, a Ustropotamobius pallipes, in the Sherston Avon and Tetbury Avon, Wiltshire

This article reports on the success of reintroducing native crayfish (Austropotamobius pallipes) in the Sherston and Tetbury Avon, following extinction of the population from crayfish plague. The authors describe and review the survey methods that were used and identify a survey technique that was found to be the most rapid and robust for monitoring crayfish populations. Such a survey technique could be adopted as a standard method

A flat trend of star-formation rate with X-ray luminosity of galaxies hosting AGN in the SCUBA-2 Cosmology Legacy Survey

© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.Feedback processes from active galactic nuclei (AGN) are thought to play a crucial role in regulating star formation in massive galaxies. Previous studies using Herschel have resulted in conflicting conclusions as to whether star formation is quenched, enhanced, or not affected by AGN feedback. We use new deep 850 μm observations from the SCUBA-2 Cosmology Legacy Survey (S2CLS) to investigate star formation in a sample of X-ray selected AGN, probing galaxies up to L 0.5-7keV = 10 46 erg s -1. Here, we present the results of our analysis on a sample of 1957 galaxies at 1 < z < 3, using both S2CLS and ancilliary data at seven additional wavelengths (24-500 μm) from Herschel and Spitzer. We perform a stacking analysis, binning our sample by redshift and X-ray luminosity. By fitting analytical spectral energy distributions (SEDs) to decompose contributions from cold and warm dust, we estimate star formation rates (SFRs) for each 'average' source. We find that the average AGN in our sample resides in a star-forming host galaxy, with SFRs ranging from 80 to 600 M ⊙ yr -1. Within each redshift bin, we see no trend of SFR with X-ray luminosity, instead finding a flat distribution of SFR across ∼3 orders of magnitude of AGN luminosity. By studying instantaneous X-ray luminosities and SFRs, we find no evidence that AGN activity affects star formation in host galaxies.Peer reviewedFinal Accepted Versio

Alexander Arbuthnot and the lyric in the Post-Reformation Scotland

Presents the first critical discussion of manuscript poems in the Maitland Quarto attributable to Alexander Arbuthnot (1538-1583), the first Protestant principal of King\u27s College, Aberdeen; gives detailed discussion of attribution and textual issues; and discusses the effects of religious change on Arbuthnot\u27s writing of amatory, ethical and devotional lyric in post-Reformation Scotland

“We make something with the flower, but feel like I make with myself something”: The role of a community arts project supporting women who have experienced human trafficking

Human trafficking can have multiple adverse effects on a victim's mental and physical health. The study explored how a small UK community arts project was experienced by individuals post‐trafficking and the impact it had on well‐being. Community‐based participatory research was employed to increase understanding the experiences of six female participants taking part in a community arts project. Data were analyzed using thematic analysis. Themes of Authentic Care, Building Confidence, and Creative Expression were developed. Findings suggest the community arts organization played a vital role in supporting women to build trust and social connections, as well as to feel valued. Artistic activities helped participants express individuality, had therapeutic benefits, and provided motivation, routine, and space from worries. The role of community arts organizations is important in supporting individuals in the context of limited post‐trafficking services

Problem Solving and its elements in forming proof

The character of the mathematics education traditions on problem solving and proof are compared, and aspects of problem solving that occur in the processes of forming a proof, which are not well represented in the literature, are portrayed

Do drinking motives mediate the relationship between neighborhood characteristics and alcohol use among adolescents?

Funding: Funding for the Scottish Health Behaviour in School-aged Children was provided by NHS Scotland. This work was also supported by the 600th Anniversary Ph.D. Scholarship which was awarded to Gina Martin by the University of St Andrews.Adolescents not only vary in their alcohol use behavior but also in their motivations for drinking. Young people living in different neighborhoods may drink for different reasons. The aims of this study were to determine if neighborhood characteristics were associated with adolescent drinking motives, and whether drinking motives mediate the relationship between neighborhood context and regular alcohol use. Data from the Scottish Health Behaviours in School-aged Children 2010 survey of students in their 4th year of secondary school were used. The study included 1119 participants who had data on neighborhood characteristics and had used alcohol in the past year. Students were asked questions about the local area where they lived, their alcohol use, and their motives for drinking alcohol, based on the Drinking Motives Questionnaire Revised Short Form (DMQR-SF). Multilevel multivariable models and structural equation models were used in this study. Coping motives showed significant variation across neighborhoods. Structural equation models showed coping motives mediated the relationships between neighborhood deprivation, living in an accessible small-town, and neighborhood-level disorder with regular alcohol use. Public health policies that improve neighborhood conditions and develop adaptive strategies, aimed at improving alcohol-free methods for young people to cope better with life’s stresses, may be particularly effective in reducing inequalities in adolescent alcohol use if targeted at small towns and areas of increased deprivation.Publisher PDFPeer reviewe

The PAX Toolkit and its Applications at Tevatron and LHC

At the CHEP03 conference we launched the Physics Analysis eXpert (PAX), a C++ toolkit released for the use in advanced high energy physics (HEP) analyses. This toolkit allows to define a level of abstraction beyond detector reconstruction by providing a general, persistent container model for HEP events. Physics objects such as particles, vertices and collisions can easily be stored, accessed and manipulated. Bookkeeping of relations between these objects (like decay trees, vertex and collision separation, etc.) including deep copies is fully provided by the relation management. Event container and associated objects represent a uniform interface for algorithms and facilitate the parallel development and evaluation of different physics interpretations of individual events. So-called analysis factories, which actively identify and distinguish different physics processes and study systematic uncertainties, can easily be realized with the PAX toolkit. PAX is officially released to experiments at Tevatron and LHC. Being explored by a growing user community, it is applied in a number of complex physics analyses, two of which are presented here. We report the successful application in studies of t-tbar production at the Tevatron and Higgs searches in the channel t-tbar-Higgs at the LHC and give a short outlook on further developments

Research Brief No. 10 - Analyzing Canadian Women Working after Childbirth as Lifecourse Transition

This research focused on Canadian mothers who had a first child between 1970 and 1999, and the probability of these mothers working shortly after childbearing. Authors Stéphanie Gaudet, Martin Cooke and Joanna Jacob studied the change and underlying dynamics with two main questions. First, what are the characteristics that affect Canadian women’s employment? And how have women’s employment transitions after the birth of a first child changed over time? The investigators probed the effects of socioeconomic characteristics on labor force withdrawal using the 2001 General Social Survey, Cycle 15 on Family History. Employment transition was viewed through a type of lifecourse analysis for six cohorts of mothers over the 30-year span. Gaudet, Cooke and Jacob attempted to understand underlying inter-cohort differences through individual characteristics such as level of education, age at childbearing, employment before childbearing, and spousal income. The researchers concluded that since the mid-1980s, mothers with low educational attainment are largely excluded from the labor market during the two years following the birth of their first child