1,017 research outputs found

    A qualitative exploration into the impact that working as a nurse in a children's hospice has on one's thoughts and feelings surrounding personal mortality

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    This research study explores four nurse’s experiences of working in a children’s hospice and uncovers hospice experiences that contribute to personal mortality exploration. The study investigates how these experiences impact the nurses’ thoughts and feelings surrounding their comprehension of their own life and death. The study addresses if a counselling service would be viewed as a beneficial resource in supporting hospice nurses explore their mortality, and where appropriate, also offers recommendations for additional emotional support for nurses. The study is qualitative in nature and uses Interpretative Phenomenological Analysis (IPA) as its mode of inquiry and analysis. Following interviews, transcription took place before carrying out a detailed analysis of the data. The study revealed that the nurses hold extensive knowledge in their field of work and possess a considerable appreciation of their own mortality. However, there was a clear avoidance for most of the participants in discussing personal mortality in any significant emotional depth. A reoccurring link was discovered between being a children’s hospice nurse and the mortality of the nurses’ own children. This link proved to provoke the most significant emotional response within the nurses. Finally the research found that children’s hospice nurses would find a staff counselling service beneficial to support them in their role. The study concludes that further research into the link between children’s hospice nursing and personal mortality wishes would be helpful in creating a solid body of literature within this field. It is also suggested that research with hospice nurses who have been witness to what they perceive as ‘traumatic’ experiences and whom have engaged in counselling as a result of these traumas may be another area worthy of research

    Validation of Aura Microwave Limb Sounder O-3 and CO observations in the upper troposphere and lower stratosphere

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    International audienceGlobal satellite observations of ozone and carbon monoxide from the Microwave Limb Sounder (MLS) on the EOS Aura spacecraft are discussed with emphasis on those observations in the 215–100 hPa region (the upper troposphere and lower stratosphere). The precision, resolution and accuracy of the data produced by the MLS “version 2.2” processing algorithms are discussed and quantified. O3 accuracy is estimated at ~40 ppbv +5% (~20 ppbv +20% at 215 hPa) while the CO accuracy is estimated at ~30 ppbv +30% for pressures of 147 hPa and less. Comparisons with expectations and other observations show good agreements for the O3 product, generally consistent with the systematic errors quoted above. In the case of CO, a persistent factor of ~2 high bias is seen at 215 hPa. However, the morphology is shown to be realistic, consistent with raw MLS radiance data, and useful for scientific study. The MLS CO data at higher altitudes are shown to be consistent with other observations

    Global Assimilation of EOS-Aura Data as a Means of Mapping Ozone Distribution in the Lower Stratosphere and Troposphere

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    Ozone in the lower stratosphere and the troposphere plays an important role in forcing the climate. However, the global ozone distribution in this region is not well known because of the sparse distribution of in-situ data and the poor sensitivity of satellite based observations to the lowermost of the atmosphere. The Ozone Monitoring Instrument (OMI) and Microwave Limb Sounder (MLS) instruments on EOS-Aura provide information on the total ozone column and the stratospheric ozone profile. This data has been assimilated into NASA s Global Earth Observing System, Version 5 (GEOS-5) data assimilation system (DAS). We will discuss the results of assimilating three years of OMI and MLS data into GEOS-5. This data was assimilated alongside meteorological observations from both conventional sources and satellite instruments. Previous studies have shown that combining observations from these instruments through the Trajectory Tropospheric Ozone Residual methodology (TTOR) or using data assimilation can yield useful, yet low biased, estimates of the tropospheric ozone budget. We show that the assimilated ozone fields in this updated version of GEOS-5 exhibit an excellent agreement with ozone sonde and High Resolution Dynamics Limb Sounder (HIRDLS) data in the lower stratosphere in terms of spatial and temporal variability as well as integrated ozone abundances. Good representation of small-scale vertical features follows from combining the MLS data with the assimilated meteorological fields. We then demonstrate how this information can be used to calculate the Stratosphere - Troposphere Exchange of ozone and its contribution to the tropospheric ozone column in GEOS-5. Evaluations of tropospheric ozone distributions from the assimilation will be made by comparisons with sonde and other in-situ observations

    Accurate satellite-derived estimates of the tropospheric ozone impact on the global radiation budget

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    Estimates of the radiative forcing due to anthropogenically-produced tropospheric O3 are derived primarily from models. Here, we use tropospheric ozone and cloud data from several instruments in the A-train constellation of satellites as well as information from the GEOS-5 Data Assimilation System to accurately estimate the radiative effect of tropospheric O3 for January and July 2005. Since we cannot distinguish between natural and anthropogenic sources with the satellite data, our derived radiative effect reflects the unadjusted (instantaneous) effect of the total tropospheric O3 rather than the anthropogenic component. We improve upon previous estimates of tropospheric ozone mixing ratios from a residual approach using the NASA Earth Observing System (EOS) Aura Ozone Monitoring Instrument (OMI) and Microwave Limb Sounder (MLS) by incorporating cloud pressure information from OMI. We focus specifically on the magnitude and spatial structure of the cloud effect on both the short- and long-wave radiative budget. The estimates presented here can be used to evaluate the various aspects of model-generated radiative forcing. For example, our derived cloud impact is to reduce the radiative effect of tropospheric ozone by ~16%. This is centered within the published range of model-produced cloud effect on unadjusted ozone radiative forcing

    First time MOOC provider: reflections from a research-intensive university in the UK

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    Massive Open Online Courses (MOOCs) have attracted global attention in the Higher Education sector over the past two years, with 2012 named the Year of the MOOC. Apart from front-running universities in the US, most Higher Education Institutions have only recently begun to fully digest the potential implications of MOOCs on their existing provision, staff and students. This paper provides insight from the University of Leeds in the UK, a Russell Group research-intensive university, about our experiences of developing and delivering MOOCs for the FutureLearn platform, from a position of limited experience with fully online course delivery. The paper will focus on the University’s strategic approach, key governance and quality assurance issues, MOOC selection criteria, creation and sourcing of digital content for the online courses and organization of learner support materials. It is hoped that this paper will encourage and support other higher education institutions considering developing freely available online course

    Spatial transcriptomics identifies spatially dysregulated expression of <i>GRM3</i> and <i>USP47</i> in amyotrophic lateral sclerosis

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    Research Funding Medical Research Council. Grant Number: MR/L016400/1 Biogen Academy of Medical Sciences. Grant Number: 210JMG 3102 R45620 MND Scotland Engineering and Physical Sciences Research CouncilPeer reviewedPublisher PD

    Major epidemiological changes in sudden infant death syndrome : a 20-year population-based study in the UK

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    Background Results of case-control studies in the past 5 years suggest that the epidemiology of sudden infant death syndrome (SIDS) has changed since the 1991 UK Back to Sleep campaign. The campaign's advice that parents put babies on their back to sleep led to a fall in death rates. We used a longitudinal dataset to assess these potential changes. Methods Population-based data from home visits have been collected for 369 consecutive unexpected infant deaths (300 SIDS and 69 explained deaths) in Avon over 20 years (1984—2003). Data obtained between 1993 and 1996 from 1300 controls with a chosen “reference” sleep before interview have been used for comparison. Findings Over the past 20 years, the proportion of children who died from SIDS while co-sleeping with their parents, has risen from 12% to 50% (p<0·0001), but the actual number of SIDS deaths in the parental bed has halved (p=0·01). The proportion seems to have increased partly because the Back to Sleep campaign led to fewer deaths in infants sleeping alone—rather than because of a rise in deaths of infants who bed-shared, and partly because of an increase in the number of deaths in infants sleeping with their parents on a sofa. The proportion of deaths in families from deprived socioeconomic backgrounds has risen from 47% to 74% (p=0·003), the prevalence of maternal smoking during pregnancy from 57% to 86% (p=0·0004), and the proportion of pre-term infants from 12% to 34% (p=0·0001). Although many SIDS infants come from large families, first-born infants are now the largest group. The age of infants who bed-share is significantly smaller than that before the campaign, and fewer are breastfed. Interpretation Factors that contribute to SIDS have changed in their importance over the past 20 years. Although the reasons for the rise in deaths when a parent sleeps with their infant on a sofa are still unclear, we strongly recommend that parents avoid this sleeping environment. Most SIDS deaths now occur in deprived families. To better understand contributory factors and plan preventive measures we need control data from similarly deprived families, and particularly, infant sleep environments
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