3,329 research outputs found

    Reaching for the rainbow: Person-centred practice in palliative care

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    Erna Haraldsdottir - ORCID 0000-0003-4891-0743 https://orcid.org/0000-0003-4891-0743Brendan McCormack - ORCID 0000-0001-8525-8905 https://orcid.org/0000-0001-8525-8905Background: Person-centred practice is inherently integrated in palliative care. However, it cannot be assumed that its underpinning values are lived out in day-to-day practice in a hospice. At St Columba’s Hospice, Edinburgh, the five-year strategy demonstrated commitment to person-centredness and this prompted an 18-month project focusing on the evaluation and development of a person-centred culture, taking a practice development approach.Aim: To implement a person-centred practice development research project to assess, evaluate and enhance person-centred culture within St Columba’s Hospice.Methods: The theoretical underpinnings of the programme were based on the Person-centred Practice Framework. A transformative practice development approach was employed to bring about change in individuals and teams. Twelve multidisciplinary team members from different departments across the hospice formed a core research project group, which was allocated 10 protected learning and development days over the 18-month period. To assess the existing culture, data were collected at the beginning of the practice development programme, including observation in practice and real-time interviews with patients and staff. The data were analysed using a participatory approach, with group members mapping the data collected against the Person-centred Practice Framework and undertaking creative hermeneutic analysis.Discussion: The project created and sustained a space to explore and expose person-centredness within the hospice and raised awareness of what person-centred culture means in day-to-day practice. Fourth-generation evaluation highlighted further areas for action, with teams developing their own action plans aimed at enhancing person-centred culture.Conclusion and implications for practice: The context of day-to-day practice in a hospice setting is complex, and developing person-centred culture is an ongoing process. Hospices can help their staff to flourish by providing the necessary space to reflect and for critical awareness of own practices to be heightened. This could encourage staff to embrace the contradictions inherent in the work they undertake and to learn from it in order to improve their own wellbeing.https://doi.org/10.19043/ipdj.101.00510pubpub

    Person centred culture in a hospice: myth or reality? (Poster presentation)

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    Background: Person centred care is inherently integrated into palliative care as one of its cornerstones. Having developed from a pioneering grass route movement to an established organisational structure the culture of palliative care has become increasingly influenced by routine and the need for standardised practice. This has challenged the capacity to foster creative, flexible and dynamic approaches to care that put the person at the centre. McCormack and McCance’s Person Centred Practice Framework (2017) is a theoretical framework that addresses such limitations. Using this framework as an underpinning theory in our research we aimed to assess and develop a person centred culture in a hospice.sch_nur8pub5357pubSuppl

    Selective expression of RAG-2 in chicken B cells undergoing immunoglobulin gene conversion

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    Chickens create their immunoglobulin (Ig) repertoires during B cell development in the bursa of Fabriclus by intrachromosomal gene conversion. Recent evidence has suggested that Ig gene conversion may involve cis-acting DNA elements related to those involved in V(D)J recombination. Therefore, we have examined the potential role of the V(D)J recombination activating genes, RAG-1 and RAG-2, in regulating chicken Ig gene conversion. In contrast to the coexpression of RAG-1 and RAG-2 observed in mammalian B cells that undergo V(D)J recombination, chicken B cells isolated from the bursa of Fabricius express high levels of the RAG-2 mRNA but do not express RAG-1 mRNA. The developmental and phenotypic characteristics of the bursal lymphocytes and chicken B cell lines that express RAG-2 mRNA demonstrate that selective RAG-2 expression occurs specifically in B cells undergoing Ig diversification by gene conversion. These data suggest that RAG-2 plays a fundamental role in Ig-specific gene conversion.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/29505/1/0000592.pd

    The use of chloroplast genome sequences to solve phylogenetic incongruences in Polystachya Hook (Orchidaceae Juss)

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    Background: Current evidence suggests that for more robust estimates of species tree and divergence times, several unlinked genes are required. However, most phylogenetic trees for non-model organisms are based on single sequences or just a few regions, using traditional sequencing methods. Techniques for massive parallel sequencing or next generation sequencing (NGS) are an alternative to traditional methods that allow access to hundreds of DNA regions. Here we use this approach to resolve the phylogenetic incongruence found in Polystachya Hook. (Orchidaceae), a genus that stands out due to several interesting aspects, including cytological (polyploid and diploid species), evolutionary (reticulate evolution) and biogeographical (species widely distributed in the tropics and high endemism in Brazil). The genus has a notoriously complicated taxonomy, with several sections that are widely used but probably not monophyletic. Methods: We generated the complete plastid genome of 40 individuals from one clade within the genus. The method consisted in construction of genomic libraries, hybridization to RNA probes designed from available sequences of a related species, and subsequent sequencing of the product. We also tested how well a smaller sample of the plastid genome would perform in phylogenetic inference in two ways: by duplicating a fast region and analyzing multiple copies of this dataset, and by sampling without replacement from all non-coding regions in our alignment. We further examined the phylogenetic implications of non-coding sequences that appear to have undergone hairpin inversions (reverse complemented sequences associated with small loops). Results: We retrieved 131,214 bp, including coding and non-coding regions of the plastid genome. The phylogeny was able to fully resolve the relationships among all species in the targeted clade with high support values. The first divergent species are represented by African accessions and the most recent ones are among Neotropical species. Discussion: Our results indicate that using the entire plastid genome is a better option than screening highly variable markers, especially when the expected tree is likely to contain many short branches. The phylogeny inferred is consistent with the proposed origin of the genus, showing a probable origin in Africa, with later dispersal into the Neotropics, as evidenced by a clade containing all Neotropical individuals. The multiple positions of Polystachya concreta (Jacq.) Garay & Sweet in the phylogeny are explained by allotetraploidy. Polystachya estrellensis Rchb.f. can be considered a genetically distinct species from P. concreta and P. foliosa (Lindl.) Rchb.f., but the delimitation of P. concreta remains uncertain. Our study shows that NGS provides a powerful tool for inferring relationships at low taxonomic levels, even in taxonomically challenging groups with short branches and intricate morphology.Swedish Research Council [B0569601]; European Research Council under the European Union's Seventh Framework Programme (ERC) [331024]; Swedish Foundation for Strategic Research; Knut and Alice Wallenberg Foundation; Biodiversity and Ecosystems in a Changing Climate programme; Wenner-Gren Foundations; David Rockefeller Center for Latin American Studies at Harvard University; Faculty of Science at the University of Gothenbur

    CT and MR Imaging Findings of Lymphangioleiomyomatosis Involving the Uterus and Pelvic Cavity

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    Lymphangioleiomyomatosis (LAM) is a rare idiopathic disease and this is characterized by a proliferation of abnormal smooth muscle cells in the lungs and in the lymphatic system of the thorax and retroperitoneum. The female genital tract is rarely affected by LAM. We report here on the CT and MR imaging findings of extensive LAM involving the uterus and pelvic cavity, and this was seen as multiple cystic uterine and parauterine masses with internal hemorrhage in a young female with tuberous sclerosis complex

    Temperature Dependence of Low-Lying Electronic Excitations of LaMnO_3

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    We report on the optical properties of undoped single crystal LaMnO_3, the parent compound of the colossal magneto-resistive manganites. Near-Normal incidence reflectance measurements are reported in the frequency range of 20-50,000 cm-1 and in the temperature range 10-300 K. The optical conductivity, s_1(w), is derived by performing a Kramers-Kronig analysis of the reflectance data. The far-infrared spectrum of s_1(w) displays the infrared active optical phonons. We observe a shift of several of the phonon to high frequencies as the temperature is lowered through the Neel temperature of the sample (T_N = 137 K). The high-frequency s_1(w) is characterized by the onset of absorption near 1.5 eV. This energy has been identified as the threshold for optical transitions across the Jahn-Teller split e_g levels. The spectral weight of this feature increases in the low-temperature state. This implies a transfer of spectral weight from the UV to the visible associated with the paramagnetic to antiferromagnetic state. We discuss the results in terms of the double exchange processes that affect the optical processes in this magnetic material.Comment: 7 pages, 5 figure

    NOGAPS-ALPHA model simulations of stratospheric ozone during the SOLVE2 campaign

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    This paper presents three-dimensional prognostic O<sub>3</sub> simulations with parameterized gas-phase photochemistry from the new NOGAPS-ALPHA middle atmosphere forecast model. We compare 5-day NOGAPS-ALPHA hindcasts of stratospheric O<sub>3</sub> with satellite and DC-8 aircraft measurements for two cases during the SOLVE II campaign: (1) the cold, isolated vortex during 11-16 January 2003; and (2) the rapidly developing stratospheric warming of 17-22 January 2003. In the first case we test three different photochemistry parameterizations. NOGAPS-ALPHA O<sub>3</sub> simulations using the NRL-CHEM2D parameterization give the best agreement with SAGE III and POAM III profile measurements. 5-day NOGAPS-ALPHA hindcasts of polar O<sub>3</sub> initialized with the NASA GEOS4 analyses produce better agreement with observations than do the operational ECMWF O<sub>3</sub> forecasts of case 1. For case 2, both NOGAPS-ALPHA and ECMWF 114-h forecasts of the split vortex structure in lower stratospheric O<sub>3</sub> on 21 January 2003 show comparable skill. Updated ECMWF O<sub>3</sub> forecasts of this event at hour 42 display marked improvement from the 114-h forecast; corresponding updated 42-hour NOGAPS-ALPHA prognostic O<sub>3</sub> fields initialized with the GEOS4 analyses do not improve significantly. When NOGAPS-ALPHA prognostic O<sub>3</sub> is initialized with the higher resolution ECMWF O<sub>3</sub> analyses, the NOGAPS-ALPHA 42-hour lower stratospheric O<sub>3</sub> fields closely match the operational 42-hour ECMWF O<sub>3</sub> forecast of the 21 January event. We find that stratospheric O<sub>3</sub> forecasts at high latitudes in winter can depend on both model initial conditions and the treatment of photochemistry over periods of 1-5 days. Overall, these results show that the new O<sub>3</sub> initialization, photochemistry parameterization, and spectral transport in the NOGAPS-ALPHA NWP model can provide reliable short-range stratospheric O<sub>3</sub> forecasts during Arctic winter

    Anterior Cruciate Ligament Reconstruction in Patients with Generalized Joint Laxity

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    Generalized joint laxity is a genetically determined component of overall joint flexibility. The incidence of joint laxity in the overall population is approximately 5% to 20%, and its prevalence is higher in females. Recently it was noticed that individuals with generalized joint laxity are not only prone to anterior cruciate ligament injuries but also have inferior results after a reconstruction. Therefore, an anterior cruciate ligament reconstruction in patients with generalized laxity should be undertaken with caution due to the higher expected failure rate from the complexity of problems associated with this condition. It is also necessary to identify the risk factors for the injury as well as for the post operative outcome in this population. A criterion that includes all the associated components is necessary for the proper screening of individuals for generalized joint laxity. Graft selection for an anterior cruciate reconstruction in patients with ligament laxity is a challenge. According to the senior author, a hamstring autograft is an inferior choice and a double bundle reconstruction with a quadriceps tendon-bone autograft yields better results than a single bundle bone-patella tendon-bone autograft. Future studies comparing the different grafts available might be needed to determine the preferred graft for this subset of patients. Improved results after an anterior cruciate ligament reconstruction can be achieved by proper planning and careful attention to each step beginning from the clinical examination to the postoperative rehabilitation

    Stimulatory Effect of β-glucans on Immune Cells

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    β-Glucans are naturally occurring polysaccharides that are produced by bacteria, yeast, fungi, and many plants. Although their pharmacological activities, such as immunomodulatory, anti-infective and anti-cancer effects, have been well studied, it is still unclear how β-glucans exert their activities. However, recent studies on the β-glucan receptors shed some light on their mechanism of action. Since β-glucans have large molecular weights, they must bind surface receptors to activate immune cells. In this review, we summarize the immunopharmacological activities and the potential receptors of β-glucans in immune cells
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