2,476 research outputs found

    Women?s health in mid-life: life course social roles and agencyas quality

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    Data from a prospective British birth cohort study showed that women who were childless, lone mothers or full-timehomemakers between the ages of 26 and 54 were more likely to report poor health at age 54 than women who occupiedmultiple roles between these ages. To explain this finding we developed and tested a theory of role quality based on theconcept of agency by drawing on Giddens? theory of structuration and Doyal and Gough?s theory of human needs.According to our theory, the patriarchal structuration (drawing on Giddens? term) of work and family roles provides bothlimitation and opportunity for the expression of agency. Doyal and Gough?s theory of human needs was then used toidentify the restriction of agency as a possible influence on health. This theory of role quality was operationalised using ameasure of work (paid and unpaid) quality at age 36 and a measure of work and family stress between ages 48 and 54. Therelatively poor subjective health in mid-life of lone mothers was explained by work and family stress and adult social class.In contrast, the poor health in mid-life of long-term homemakers and childless women was less easily explained.Homemaker?s excess risk of reporting poor health at age 54 remained strong and significant even after adjusting for rolequality and socioeconomic indicators, and childless women were at an increased risk of reporting poor health despite thesocial advantage inherent in attaining educational qualifications and occupying professional or managerial occupations.This study highlights the need to develop measures of role quality specifically designed to capture agency aspects of socialroles

    Evaluation of the Environmental Impact of Milk Quotas

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    The aim of this study is to examine the environmental impacts of the different systems for allocation and transfer of milk quota under the Common Agricultural Policy (CAP) in individual Member States of the European Union (EU). In particular, it seeks to identify the ways in which differences in the implementation of milk quota regimes can impact on various sectoral and farm management trends and the environmental implications of these

    Radioactive-type dual ablation measuring system, volume 1 Final report

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    Nucleonic measurement of ablative heat shield material recessio

    Labour force transitions and changes in quality of life at age 50 to 55 years: evidence from a birth cohort study

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    In the context of an ageing population and longer working lives, the impact of increasing rates of early exit from the labour force on quality of life is a particularly current concern. However, relatively little is known about the impact on quality of life of later life labour force transitions and various forms of early exit from the labour force, compared to remaining in employment. This paper examines life course labour force trajectories and transitions in relation to change in quality of life prior to the State Pension Age. Life course data on early life circumstances, labour force trajectories and labour force transitions from 3,894 women and 3,528 men in the National Child Development Study (1958 British Birth Cohort) were examined in relation to change in quality of life, measured by a short-form version of CASP, between ages 50 and 55 years. Women and men differed in the types of labour force transition associated with positive change in quality of life, with men more frequent beneficiaries. For both men and women, labour force exit due to being sick or disabled was associated with a negative change in quality of life, whereas joining the labour force was associated with a positive change in quality of life. Moving into retirement was associated with a positive change in men’s quality of life, but not women’s. Moving from full-time to part-time employment was associated with a positive change in women’s quality of life, but not men’s. The findings that stand out for their policy relevance are: the threat to the quality of life of both women and men from early labour force exit due to limiting longstanding illness; and, women are less likely to experience beneficial labour force exit in the later years of their working life, but are more likely to benefit from a reduction in working hours

    Strategies for enhancing quantum entanglement by local photon subtraction

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    Subtracting photons from a two-mode squeezed state is a well-known method to increase entanglement. We analyse different strategies of local photon subtraction from a two-mode squeezed state in terms of entanglement gain and success probability. We develop a general framework that incorporates imperfections and losses in all stages of the process: before, during, and after subtraction. By combining all three effects into a single efficiency parameter, we provide analytical and numerical results for subtraction strategies using photon-number-resolving and threshold detectors. We compare the entanglement gain afforded by symmetric and asymmetric subtraction scenarios across the two modes. For a given amount of loss, we identify an optimised set of parameters, such as initial squeezing and subtraction beam splitter transmissivity, that maximise the entanglement gain rate. We identify regimes for which asymmetric subtraction of different Fock states on the two modes outperforms symmetric strategies. In the lossless limit, subtracting a single photon from one mode always produces the highest entanglement gain rate. In the lossy case, the optimal strategy depends strongly on the losses on each mode individually, such that there is no general optimal strategy. Rather, taking losses on each mode as the only input parameters, we can identify the optimal subtraction strategy and required beam splitter transmissivities and initial squeezing parameter. Finally, we discuss the implications of our results for the distillation of continuous-variable quantum entanglement.Comment: 13 pages, 11 figures. Updated version for publicatio

    A Geographer's Role in a Google Maps World

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    Server GIS Jeremy Bartley – ArcGIS Server Developer Team, ESRIGIS Day 2007 @ KU is sponsored by: * KU Department of Geography * State of Kansas Data Access and Support Center (DASC) * KU Libraries GIS and Scholar Services * KU Transportation Research Institute * KU Institute for Policy & Social Research * Western Air Maps, Inc. * Coca-Cola * Kansas Biological Survey * KU Center for Remote Sensing of Ice Sheets (CReSIS) * Kansas View Consortiu
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