570 research outputs found

    Spatially Resolved Observations of the Bipolar Optical Outflow from the Brown Dwarf 2MASSJ12073347-3932540

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    Studies of brown dwarf (BD) outflows provide information pertinent to questions on BD formation, as well as allowing outflow mechanisms to be investigated at the lowest masses. Here new observations of the bipolar outflow from the 24 MJUP_{JUP} BD, 2MASSJ12073347-3932540 are presented. The outflow was originally identified through the spectro-astrometric analysis of the [OI]λ\lambda6300 emission line. Follow-up observations consisting of spectra and [SII], R-band and I-band images were obtained. The new spectra confirm the original results and are used to constrain the outflow PA at ∌\sim 65∘^{\circ}. The [OI]λ\lambda6300 emission line region is spatially resolved and the outflow is detected in the [SII] images. The detection is firstly in the form of an elongation of the point spread function along the direction of the outflow PA. Four faint knot-like features (labelled {\it A-D}) are also observed to the south-west of 2MASSJ12073347-3932540 along the same PA suggested by the spectra and the elongation in the PSF. Interestingly, {\it D}, the feature furthest from the source is bow-shaped with the apex pointing away from 2MASSJ12073347-3932540. A color-color analysis allows us to conclude that at least feature {\it D} is part of the outflow under investigation while {\it A} is likely a star or galaxy. Follow-up observations are needed to confirm the origin of {\it B} and {\it C}. This is a first for a BD, as BD optical outflows have to date only been detected using spectro-astrometry. This result also demonstrates for the first time that BD outflows can be collimated and episodic.Comment: Accepted by ApJ, ref ApJ89096R

    Police perceptions of rape victims and the impact on case decision making: A systematic review

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    Police officers are frequently perceived to hold negative attitudes about rape victims. The aim of this systematic review is to: (1) synthesise the current literature on police officers' attributions of rape victim blame, assessments of rape victim credibility, and rape myth acceptance; and, (2) examine the evidence that holding these attitudes impacts on police investigative decision making in rape cases. Twenty-four articles published between 2000 and 2016 were included following a systematic search of the available literature. The findings highlight that some police officers do hold problematic attitudes about rape victims e.g., blame, rape myth acceptance, although they are frequently noted to be at a low level. Furthermore, characteristics of the victim, e.g., alcohol intoxication and emotional expression, can affect attributions of victim credibility. Assessments of victim credibility were related to police investigative decision making e.g., recommendations to charge the perpetrator, perceptions of guilt. However, the impact of rape victim blaming and rape myth acceptance is less clear. Given that the literature was predominantly vignette-based, it is unclear how these judgements have an impact in real rape investigations.N/

    Airport Drop-Off and Pick-Up Charges in Great Britain: Will They Come to the United States?

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    As transportation network companies (TNCs) like Uber and Lyft drive a change in modern transport behaviors, fewer passengers pay for services such as parking or commercial vehicle drop-off at airports, meaning that what once was a primary revenue source for airports now has a tenuous future. Therefore, airports must find a way to counterbalance the revenue losses created by these changes. One such solution has been on the rise in Great Britain. With airport drop-off and pick-up charges, private vehicles must pay for the convenience of loading or unloading passengers at the airport entrance. Not only does this practice have the potential to generate millions of dollars in annual revenue, but it also offers a remedy for other maladies such as congestion and safety issues on airport roads. This report examines the effects that drop-off and pick-up charges have had in Great Britain and explores what US airports might expect should they too adopt the practice

    Changes in health-related quality of life following imprisonment in 92 women in England: a three month follow-up study

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    <p>Abstract</p> <p>Background</p> <p>Despite the considerable changes in the provision of health care to prisoners in the UK there is little published literature that attempts to examine broader aspects of health and the impact of imprisonment on these, focusing instead on disease specific areas. This is surprising given that one of the main drivers behind the changes was the need for improvements in the quality of care; examining changes in health outcomes should be an important part of monitoring service developments. This study assessed the health-related quality of life of women on entry into prison and examined changes during a period of three months imprisonment.</p> <p>Methods</p> <p>This was a prospective longitudinal study involving 505 women prisoners in England. The SF-36 was contained within a questionnaire designed to examine many aspects of imprisoned women's health. Participants completed this questionnaire within 72 hours of entering prison. The researchers followed up all participants who were still imprisoned three months later.</p> <p>Results</p> <p>The study achieved good response rates: 82% of women agreed to participate initially (n = 505), and 93% of those still imprisoned participating three months later (n = 112). At prison entry, women prisoners have lower mental component summary score (MCS) and physical component summary score (PCS) compared to women within the general population. The mental well-being of those 112 women still imprisoned after three months improved over this period of imprisonment, although remained poorer than that of the general population. The PCS did not improve significantly and remained significantly lower than that of the general population. Multivariate analyses showed that the only independent predictor of change in component score was the score at baseline.</p> <p>Conclusions</p> <p>The results highlight the poor health-related quality of life of women prisoners and highlight the scale of the challenge faced by those providing health care to prisoners. They also draw attention to the major health disadvantages of women offenders compared to women in general. While recent reforms may improve health services for prisoners, broader inequalities in the health of women are a more complex challenge.</p

    Brown Dwarf Jets: Investigating the Universality of Jet Launching Mechanisms at the Lowest Masses

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    Recently it has become apparent that proto-stellar-like outflow activity extends to the brown dwarf (BD) mass regime. While the presence of accretion appears to be the common ingredient in all objects known to drive jets fundamental questions remain unanswered. The more prominent being the exact mechanism by which jets are launched, and whether this mechanism remains universal among such a diversity of sources and scales. To address these questions we have been investigating outflow activity in a sample of protostellar objects that differ considerably in mass and mass accretion rate. Central to this is our study of brown dwarf jets. To date Classical T Tauri stars (CTTS) have offered us the best touchstone for decoding the launching mechanism. Here we shall summarise what is understood so far of BD jets and the important constraints observations can place on models. We will focus on the comparison between jets driven by objects with central mass < 0.1M \odot and those driven by CTTSs. In particular we wish to understand how the the ratio of the mass outflow to accretion rate compares to what has been measured for CTTSs.Comment: Proceedings of IAU meeting 275, "Jets at All Scales

    Factors influencing fatigue in UK nurses working in respiratory clinical areas during the second wave of the Covid‐19 pandemic: An online survey

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    AIMS AND OBJECTIVES: This study explores UK nurses' experiences of working in a respiratory clinical area during the COVID‐19 pandemic over winter 2020. BACKGROUND: During the first wave of the pandemic, nurses working in respiratory clinical areas experienced significant levels of anxiety and depression. As the pandemic has progressed, levels of fatigue in nurses have not been assessed. METHODS: A cross‐sectional e‐survey was distributed via professional respiratory societies and social media. The survey included Generalised Anxiety Disorder Assessment (GAD7), Patient Health Questionnaire (PHQ9, depression), a resilience scale (RS‐14) and Chalder mental and physical fatigue tools. The STROBE checklist was followed as guidance to write the manuscript. RESULTS: Despite reporting anxiety and depression, few nurses reported having time off work with stress, most were maintaining training and felt prepared for COVID challenges in their current role. Nurses reported concerns over safety and patient feedback was both positive and negative. A quarter of respondents reported wanting to leave nursing. Nurses experiencing greater physical fatigue reported higher levels of anxiety and depression. CONCLUSIONS: Nurses working in respiratory clinical areas were closely involved in caring for COVID‐19 patients. Nurses continued to experience similar levels of anxiety and depression to those found in the first wave and reported symptoms of fatigue (physical and mental). A significant proportion of respondents reported considering leaving nursing. Retention of nurses is vital to ensure the safe functioning of already overstretched health services. Nurses would benefit from regular mental health check‐ups to ensure they are fit to practice and receive the support they need to work effectively. RELEVANCE TO CLINICAL PRACTICE: A high proportion of nurses working in respiratory clinical areas have been identified as experiencing fatigue in addition to continued levels of anxiety, depression over winter 2020. Interventions need to be implemented to help provide mental health support and improve workplace conditions to minimise PTSD and burnout

    Healthcare Professionals’ Attitudes towards and Knowledge and Understanding of Paediatric Palliative Medicine (PPM) and Its Meaning within the Paediatric Intensive Care Unit (PICU): : A Summative Content Analysis in a Tertiary Children’s Hospital in Scotland—“An In Vitro Study”

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    Paediatric palliative medicine (PPM) is a holistic approach to care for children and their families. Services are growing and developing worldwide but significant disparity in service provision remains. The Paediatric Supportive and Palliative Care Team (PSPCT) at the Royal Hospital for Children in Glasgow was established in 2019, but there is still no clear integrated role within the paediatric intensive care unit (PICU) at present. Through analysing the attitudes, meaning, knowledge and understanding of PPM in the PICU environment, we hoped to explore the experiences of those providing paediatric palliative care and to identify any barriers to or facilitators of integrated working to gain a better understanding of providing this care. Methods: This qualitative study used a survey composed of five open-ended and five closed questions. Sixteen out of a possible thirty-two responses (50%) were accrued from PICU healthcare professionals, including consultants (n = 19), advanced nurse practitioners (n = 4) and band-seven nurses (n = 9). The data were comprehensively studied and analysed by two coders using summative content analysis with assistance from data management software. Codes were further developed to form categories and subcategories. Results: Two categories were found: (1) the role of palliative care and (2) experiences of providing palliative care. A total of five subcategories were found, demonstrating that the PSPCT can enhance care in PICU through collaborative working. Barriers identified included staffing, funding and stigma around palliative care. Conclusions: This study shows that PICU professionals have a good understanding of the concepts of PPM and view it as an essential part of PICU work. Barriers related to resources and misperceptions of palliative care can be overcome through improved education, funding and staff retention, but this would require buy-in from policymakers. The perspective from our relatively small team increases generalizability to growing teams across the countr

    Astronomy below the survey threshold in the SKA era

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    Astronomy at or below the 'survey threshold' has expanded significantly since the publication of the original 'Science with the Square Kilometer Array' in 1999 and its update in 2004. The techniques in this regime may be broadly (but far from exclusively) defined as 'confusion' or 'P(D)' analyses (analyses of one-point statistics), and 'stacking', accounting for the flux-density distribution of noise-limited images co-added at the positions of objects detected/isolated in a different waveband. Here we discuss the relevant issues, present some examples of recent analyses, and consider some of the consequences for the design and use of surveys with the SKA and its pathfinders
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