50 research outputs found

    Work satisfaction among women in dual-earner marriages

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    The purpose of the present study was to explore the work satisfaction among women in dual-income marriages. Two different predictive models of women\u27s work satisfaction were explored. The first model investigated marital, parental, and life satisfaction as possible predictors of women\u27s work satisfaction. The second model focused on demographics variables (personal income, educational level, and hours worked outside the home) as possible indicators of women\u27s work satisfaction. The women in this sample ranged in age from 22 to 62 years of age and were residents of the Knox County area. Both models proved to be significant and one strong predictor variable emerged from each model, life satisfaction and educational level. Personal income did contribute to the explanation of the variance in the demographic model, but marital satisfaction, though marginal, was not significant in the satisfaction model. Parental satisfaction did not significantly correlate with women\u27s work satisfaction. Suggestions for employers were given for possible practical applications to increase women\u27s work satisfaction

    Models of care for the delivery of secondary fracture prevention after hip fracture:a health service cost, clinical outcomes and cost-effectiveness study within a region of England.

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    Background Professional bodies have produced comprehensive guidance about the management of hip fracture. They recommend orthogeriatric services focusing on achieving optimal recovery, and fracture liaison services (FLSs) focusing on secondary fracture prevention. Despite such guidelines being in place, there is significant variation in how services are structured and organised between hospitals. Objectives To establish the clinical effectiveness and cost-effectiveness of changes to the delivery of secondary fracture prevention services, and to identify barriers and facilitators to changes. Design A service evaluation to identify each hospital’s current models of care and changes in service delivery. A qualitative study to identify barriers and facilitators to change. Health economics analysis to establish NHS costs and cost-effectiveness. A natural experimental study to determine clinical effectiveness of changes to a hospital’s model of care. Setting Eleven acute hospitals in a region of England. Participants Qualitative study – 43 health professionals working in fracture prevention services in secondary care. Interventions Changes made to secondary fracture prevention services at each hospital between 2003 and 2012. Main outcome measures The primary outcome is secondary hip fracture. Secondary outcomes include mortality, non-hip fragility fracture and the overall rate of hip fracture. Data sources Clinical effectiveness/cost-effectiveness analyses – primary hip fracture patients identified from (1) Hospital Episode Statistics (2003–13, n = 33,152); and (2) Clinical Practice Research Datalink (1999–2013, n = 11,243). Results Service evaluation – there was significant variation in the organisation of secondary fracture prevention services, including staffing levels, type of service model (consultant vs. nurse led) and underlying processes. Qualitative – fracture prevention co-ordinators gave multidisciplinary health professionals capacity to work together, but communication with general practitioners was challenging. The intervention was easily integrated into practice but some participants felt that implementation was undermined by under-resourced services. Making business cases for a service was particularly challenging. Natural experiment – the impact of introducing an orthogeriatrician on 30-day and 1-year mortality was hazard ratio (HR) 0.73 [95% confidence interval (CI) 0.65 to 0.82] and HR 0.81 (95% CI 0.75 to 0.87), respectively. Thirty-day and 1-year mortality were likewise reduced following the introduction or expansion of a FLS: HR 0.80 (95% CI 0.71 to 0.91) and HR 0.84 (95% CI 0.77 to 0.93), respectively. There was no significant impact on time to secondary hip fracture. Health economics – the annual cost in the year of hip fracture was estimated at £10,964 (95% CI £10,767 to £11,161) higher than the previous year. The annual cost associated with all incident hip fractures in the UK among those aged ≥ 50 years (n = 79,243) was estimated at £1215M. At a £30,000 per quality-adjusted life-year threshold, the most cost-effective model was introducing an orthogeriatrician. Conclusion In hip fracture patients, orthogeriatrician and nurse-led FLS models are associated with reductions in mortality rates and are cost-effective, the orthogeriatrician model being the most cost-effective. There was no evidence for a reduction in second hip fracture. Qualitative data suggest that weaknesses lie in treatment adherence/monitoring, a possible reason for the lack of effectiveness on second hip fracture outcome. The effectiveness on non-hip fracture outcomes remains unanswered. Future work Reliable estimates of health state utility values for patients with hip and non-hip fractures are required to reduce uncertainty in health economic models. A clinical trial is needed to assess the clinical effectiveness and cost-effectiveness of a FLS for non-hip fracture patients. Funding The National Institute for Health Research (NIHR) Health Services and Delivery Research programme and the NIHR Musculoskeletal Biomedical Research Unit, University of Oxford

    Ethical Considerations in Chronic Brain Injury

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    A growing number of individuals are living with chronic traumatic brain injury. As these individuals and their families attempt to reintegrate into their communities, several ethical questions arise for clinicians and researchers. These include issues around alignment of perspectives and priorities, as well as responsibilities for ongoing treatment, education, community outreach, and research. An action plan for addressing these questions is outlined

    An Experimental Field Study of Delayed Density Dependence in Natural Populations of Aedes albopictus

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    Aedes albopictus, a species known to transmit dengue and chikungunya viruses, is primarily a container-inhabiting mosquito. The potential for pathogen transmission by Ae. albopictus has increased our need to understand its ecology and population dynamics. Two parameters that we know little about are the impact of direct density-dependence and delayed density-dependence in the larval stage. The present study uses a manipulative experimental design, under field conditions, to understand the impact of delayed density dependence in a natural population of Ae. albopictus in Raleigh, North Carolina. Twenty liter buckets, divided in half prior to experimentation, placed in the field accumulated rainwater and detritus, providing oviposition and larval production sites for natural populations of Ae. albopictus. Two treatments, a larvae present and larvae absent treatment, were produced in each bucket. After five weeks all larvae were removed from both treatments and the buckets were covered with fine mesh cloth. Equal numbers of first instars were added to both treatments in every bucket. Pupae were collected daily and adults were frozen as they emerged. We found a significant impact of delayed density-dependence on larval survival, development time and adult body size in containers with high larval densities. Our results indicate that delayed density-dependence will have negative impacts on the mosquito population when larval densities are high enough to deplete accessible nutrients faster than the rate of natural food accumulation

    The Ninth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Baryon Oscillation Spectroscopic Survey

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    The Sloan Digital Sky Survey III (SDSS-III) presents the first spectroscopic data from the Baryon Oscillation Spectroscopic Survey (BOSS). This ninth data release (DR9) of the SDSS project includes 535,995 new galaxy spectra (median z=0.52), 102,100 new quasar spectra (median z=2.32), and 90,897 new stellar spectra, along with the data presented in previous data releases. These spectra were obtained with the new BOSS spectrograph and were taken between 2009 December and 2011 July. In addition, the stellar parameters pipeline, which determines radial velocities, surface temperatures, surface gravities, and metallicities of stars, has been updated and refined with improvements in temperature estimates for stars with T_eff<5000 K and in metallicity estimates for stars with [Fe/H]>-0.5. DR9 includes new stellar parameters for all stars presented in DR8, including stars from SDSS-I and II, as well as those observed as part of the SDSS-III Sloan Extension for Galactic Understanding and Exploration-2 (SEGUE-2). The astrometry error introduced in the DR8 imaging catalogs has been corrected in the DR9 data products. The next data release for SDSS-III will be in Summer 2013, which will present the first data from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) along with another year of data from BOSS, followed by the final SDSS-III data release in December 2014.Comment: 9 figures; 2 tables. Submitted to ApJS. DR9 is available at http://www.sdss3.org/dr

    The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment

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    The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourteenth from SDSS overall (making this, Data Release Fourteen or DR14). This release makes public data taken by SDSS-IV in its first two years of operation (July 2014-2016). Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey (eBOSS); the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data driven machine learning algorithm known as "The Cannon"; and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). This paper describes the location and format of the publicly available data from SDSS-IV surveys. We provide references to the important technical papers describing how these data have been taken (both targeting and observation details) and processed for scientific use. The SDSS website (www.sdss.org) has been updated for this release, and provides links to data downloads, as well as tutorials and examples of data use. SDSS-IV is planning to continue to collect astronomical data until 2020, and will be followed by SDSS-V.Comment: SDSS-IV collaboration alphabetical author data release paper. DR14 happened on 31st July 2017. 19 pages, 5 figures. Accepted by ApJS on 28th Nov 2017 (this is the "post-print" and "post-proofs" version; minor corrections only from v1, and most of errors found in proofs corrected

    Fractures in sub-Saharan Africa: epidemiology, economic impact and ethnography (Fractures-E3): study protocol

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    Background: The population of older adults is growing in sub-Saharan Africa. Ageing exponentially increases fragility fracture risk. Of all global regions, Africa is projected to observe the greatest increase in fragility fractures. Fractures cause pain, disability and sometimes death, and management is expensive, often requiring complex healthcare delivery. For countries to plan future healthcare services, understanding is needed of fracture epidemiology, associated health service costs and the currently available healthcare resources. Methods: The Fractures-E3 5-year mixed-methods research programme will investigate the epidemiology, economic impact, and treatment provision for fracture and wider musculoskeletal health in The Gambia, South Africa and Zimbabwe. These three countries are diverse in their geography, degree of urbanisation, maturity of health service infrastructure, and health profiles. The programme comprises five study types: (i) population-based cross-sectional studies to determine vertebral fracture prevalence. Secondary outcomes will include osteoarthritis and sarcopenia. Age- and sex-stratified household sampling will recruit 5030 adults aged 40 years and older; (ii) prospective cohort studies in adults aged 40 years and older will determine hip fracture incidence, associated risk factors, and outcomes over one year (e.g. mortality, disability, health-related quality of life); (iii) economic studies of direct health costs of hip fracture with projection modelling of future national health costs and cost-effectiveness analyses of different hip fracture care pathways; (iv) national surveys of hip fracture services (including traditional bonesetters in The Gambia); and (v) ethnographic studies of hip fracture care provision and experiences will understand fracture service pathways. Conclusions: Greater understanding of current and expected fracture burdens, fracture risk factors, and existing fracture care provision, is intended to inform national clinical guidelines, health service policy and planning and future health service development in sub-Saharan Africa.</ns4:p

    Sloan Digital Sky Survey IV: mapping the Milky Way, nearby galaxies, and the distant universe

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    We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median ). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July

    Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe

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    We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median z0.03z\sim 0.03). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between z0.6z\sim 0.6 and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July

    Sloan Digital Sky Survey IV : mapping the Milky Way, nearby galaxies, and the distant universe

    Get PDF
    We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median z ~ 0.03). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between z ~ 0.6 and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July
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