HPE Teachers\u27 Collection of Information on Student Physical Activity Levels

This exploratory study sought to identify whether Health and Physical Education (HPE) Heads of Department (HODs) used a process of reflection to identify students\u27 physical activity levels in compulsory general HPE (years 8-1 0) at secondary schools in the northern metropolitan suburbs of Perth. This study used a questionnaire, administered by research assistants, to learn what teachers believe students should be taught about physical activity. It utilised the Pollard & Tann (1993) reflective teaching process to determine if teachers collected written information on students\u27 physical activity levels. It asked whether they analysed, evaluated, reflected, planed, made provision and acted on any information gathered. The study used comparative and descriptive statistics as well as conceptual categorisation to determine whether the behaviour of HPE HODs aligned with their stated goals. The study showed the teachers in the study did not have a valid or reliable method of data collection. It also highlighted teachers\u27 confusion about the terms \u27physical activity\u27 and \u27fitness\u27. Ideological and contextual barriers to the successful use of written data collection were also identified. Issues of accountability and subject marginality were also raised due to the low number of administrative requests for program evaluation. These findings have identified several areas for further research

XMM-Newton reveals ~100 new LMXBs in M31 from variability studies

We have conducted a survey of X-ray sources in XMM-Newton observations of M31, examining their power density spectra (PDS) and spectral energy distributions (SEDs). Our automated source detection yielded 535 good X-ray sources; to date, we have studied 225 of them. In particular, we examined the PDS because low mass X-ray binaries (LMXBs) exhibit two distinctive types of PDS. At low accretion rates, the PDS is characterised by a broken power law, with the spectral index changing from ~0 to ~1 at some frequency in the range \~0.01--1 Hz; we refer to such PDS as Type A. At higher accretion rates, the PDS is described by a simple power law; we call these PDS Type B. Of the 225 sources studied to date, 75 exhibit Type A variability, and are almost certainly LMXBs, while 6 show Type B but not Type A, and are likely LMXBs. Of these 81 candidate LMXBs, 71 are newly identified in this survey; furthermore, they are mostly found near the centre of M31. Furthermore, most of the X-ray population in the disc are associated with the spiral arms, making them likely high mass X-ray binaries (HMXBs). In general these HMXBs do not exhibit Type A variability, while many central X-ray sources (LMXBs) in the same luminosity range do. Hence the PDS may distinguish between LMXBs and HMXBs in this luminosity range.Comment: 4 pages, 2 figures. To appear in proceedings of IAUS230: "Populations of High Energy Sources in Galaxies", 14-19 August 2005, Dublin, Eds E.J.A. Meurs and G. Fabbian

The Methodology of the Multi-site Study of the Termination of Supplemental Security Income Benefits for Drug Addicts and Alcoholics

This paper describes the quantitative and qualitative methodologies used in a nine-site, two-year study of the effects of terminating Supplemental Security Income (SSI) for drug addiction and alcoholism (DA&A). The quantitative component of the study involved a longitudinal survey that collected data on 1,744 former DA&A recipients, representing about one-fourth of the national population, and achieved an aggregate follow-up rate of 82%. Despite limitations in questionnaire design and implementation, the survey provided reasonably valid data in the following areas: demographics, employment/income, medical/psychiatric status, drug and alcohol use, legal involvement, family/social functioning, food and hunger, housing, and victimization. The qualitative component examined the lives of a subsample to help clarify important issues that could not be addressed within the more structured protocol and format of the longitudinal survey. The paper also presents details on the survey instrument design, the results of validation studies of selected survey items, and data collection protocols across study sites

The Methodology of the Multi-site Study of the Termination of Supplemental Security Income Benefits for Drug Addicts and Alcoholics

This paper describes the quantitative and qualitative methodologies used in a nine-site, two-year study of the effects of terminating Supplemental Security Income (SSI) for drug addiction and alcoholism (DA&A). The quantitative component of the study involved a longitudinal survey that collected data on 1,744 former DA&A recipients, representing about one-fourth of the national population, and achieved an aggregate follow-up rate of 82%. Despite limitations in questionnaire design and implementation, the survey provided reasonably valid data in the following areas: demographics, employment/income, medical/psychiatric status, drug and alcohol use, legal involvement, family/social functioning, food and hunger, housing, and victimization. The qualitative component examined the lives of a subsample to help clarify important issues that could not be addressed within the more structured protocol and format of the longitudinal survey. The paper also presents details on the survey instrument design, the results of validation studies of selected survey items, and data collection protocols across study sites

Investigating the mechanism of impact of the quality premium initiative on antibiotic prescribing in primary care practices in England: a study protocol

Introduction The persistent development and spread of resistance to antibiotics remains an important public health concern in the UK and globally. About 74% of antibiotics prescribed in England in 2016 was in primary care. The Quality Premium (QP) initiative that rewards Clinical Commissioning Groups (CCGs) financially based on the quality of specific health services commissioned is one of the National Health Service (NHS) England interventions to reduce antimicrobial resistance through reduced prescribing. Emerging evidence suggests a reduction in antibiotic prescribing in primary care practices in the UK following QP initiative. This study aims to investigate the mechanism of impact of this high-cost health-system level intervention on antibiotic prescribing in primary care practices in England. Methods and analysis The study will constitute secondary analyses of antibiotic prescribing data for almost all primary care practices in England from the NHS England Antibiotic Quality Premium Monitoring Dashboard and OpenPrescribing covering the period 2013 to 2018. The primary outcome is the number of antibiotic items per Specific Therapeutic group Age-sex Related Prescribing Unit (STAR-PU) prescribed monthly in each practice or CCG. We will first conduct an interrupted time series using Ordinary Least Square regression method to examine whether antibiotic prescribing rate in England has changed over time, and how such changes, if any, are associated with QP implementation. Single and sequential multiple-mediator models using a unified approach for the natural direct and indirect effects will be conducted to investigate the relationship between QP initiative, the potential mediators and antibiotic prescribing rate with adjustment for practice and CCG characteristics. Ethics and dissemination This study will use secondary data that are anonymised and obtained from studies that have either undergone ethical review or generated data from routine collection systems. Multiple channels will be used in disseminating the findings from this study to academic and non-academic audiences. Strengths and Limitations of this study • This study will be the first to evaluate the mechanism of the impact of a financial incentive initiative involving Clinical Commissioning Groups to improve antibiotic prescribing in primary care practices in England. • The investigation of multiple mediators in this study will help to identify the contributions of multiple strategies in translating the effects of QP while unpacking the extent of the effect of specific mediators. • Due to the limited data on practice-level interventions or strategies that might potentially mediate the effect of the QP on antibiotic prescribing, we will not be able to extensively investigate the mechanism of QP impact at the practice level. • Nevertheless, extensive investigations will be conducted at CCG level where the Quality Premium initiative is implemented, and rewards paid out

Drug Treatment Participation and Retention Rates among Former Recipients of Supplemental Security Income for Drug Addiction and Alcoholism

This study examined drug treatment participation and retention rates for a multisite sample of 1,586 former recipients of Supplemental Security Income (SSI) for drug addiction and alcoholism (DA&A). Fewer than half of the sample were complying with the DA&A program treatment mandate at the time the program was terminated by federal legislation in January 1997. For all forms of treatment, both participation and retention rates declined steadily thereafter until fewer than 10% of the total sample reported being in a formal treatment two years after termination of the mandate. Survival analyses comparing treatment retention rates for DA&A beneficiaries with non-DA&A SSI beneficiaries revealed that most of the decline in treatment retention could be attributed to ending the mandate. The findings suggest that although the mandate was often not well enforced, it did bring into drug treatment many individuals who would not otherwise have participated

Drug Treatment Participation and Retention Rates among Former Recipients of Supplemental Security Income for Drug Addiction and Alcoholism

This study examined drug treatment participation and retention rates for a multisite sample of 1,586 former recipients of Supplemental Security Income (SSI) for drug addiction and alcoholism (DA&A). Fewer than half of the sample were complying with the DA&A program treatment mandate at the time the program was terminated by federal legislation in January 1997. For all forms of treatment, both participation and retention rates declined steadily thereafter until fewer than 10% of the total sample reported being in a formal treatment two years after termination of the mandate. Survival analyses comparing treatment retention rates for DA&A beneficiaries with non-DA&A SSI beneficiaries revealed that most of the decline in treatment retention could be attributed to ending the mandate. The findings suggest that although the mandate was often not well enforced, it did bring into drug treatment many individuals who would not otherwise have participated

Mandrake : visualizing microbial population structure by embedding millions of genomes into a low-dimensional representation

In less than a decade, population genomics of microbes has progressed from the effort of sequencing dozens of strains to thousands, or even tens of thousands of strains in a single study. There are now hundreds of thousands of genomes available even for a single bacterial species, and the number of genomes is expected to continue to increase at an accelerated pace given the advances in sequencing technology and widespread genomic surveillance initiatives. This explosion of data calls for innovative methods to enable rapid exploration of the structure of a population based on different data modalities, such as multiple sequence alignments, assemblies and estimates of gene content across different genomes. Here, we present Mandrake, an efficient implementation of a dimensional reduction method tailored for the needs of large-scale population genomics. Mandrake is capable of visualizing population structure from millions of whole genomes, and we illustrate its usefulness with several datasets representing major pathogens. Our method is freely available both as an analysis pipeline (https://github.com/johnlees/mandrake) and as a browser-based interactive application (https://gtonkinhill.github.io/mandrake-web/).This article is part of a discussion meeting issue 'Genomic population structures of microbial pathogens'.Peer reviewe

Evaluating the impact of air pollution on the incidence of out-of-hospital cardiac arrest in the Perth Metropolitan Region: 2000–2010

Background: Out-of-hospital cardiac arrest (OHCA) remains a major public health issue. Several studies have found that an increased level of ambient particulate matter (PM) smaller than 2.5 microns (PM2.5) is associated with an increased risk of OHCA. We investigated the relationship between air pollution levels and the incidence of OHCA in Perth, Western Australia.Methods: We linked St John Ambulance OHCA data of presumed cardiac aetiology with Perth air pollution data from seven monitors which recorded hourly levels of PM smaller than 2.5 and 10 microns (PM2.5/PM10), carbon monoxide (CO), sulfur dioxide (SO2), nitrogen dioxide (NO2) and ozone (O3). We used a case-crossover design to estimate the strength of association between ambient air pollution levels and risk of OHCA.Methods: We linked St John Ambulance OHCA data of presumed cardiac aetiology with Perth air pollution data from seven monitors which recorded hourly levels of PM smaller than 2.5 and 10 microns (PM2.5/PM10), carbon monoxide (CO), sulfur dioxide (SO2), nitrogen dioxide (NO2) and ozone (O3). We used a case-crossover design to estimate the strength of association between ambient air pollution levels and risk of OHCA.Conclusions: Elevated ambient PM2.5 and CO are associated with an increased risk of OHCA

"5 Days in August" – How London Local Authorities used Twitter during the 2011 riots

© IFIP International Federation for Information Processing 2012This study examines effects of microblogging communications during emergency events based on the case of the summer 2011 riots in London. During five days in August 2011, parts of London and other major cities in England suffered from extensive public disorders, violence and even loss of human lives. We collected and analysed the tweets posted by the official accounts maintained by 28 London local government authorities. Those authorities used Twitter for a variety of purposes such as preventing rumours, providing official information, promoting legal actions against offenders and organising post-riot community engagement activities. The study shows how the immediacy and communicative power of microblogging can have a significant effect at the response and recovery stages of emergency events