28 research outputs found

    Adolescent reading skill and engagement with digital and traditional literacies as predictors of reading comprehension

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    This study investigates the concurrent predictors of adolescent reading comprehension (literal, inferential) for fiction and non-fiction texts. Predictors were examined from the cognitive (word identification, reading fluency), psychological (gender), and ecological (print exposure) domains. Print exposure to traditional and digital texts was surveyed using a diary method of reading habits. A cross-sectional sample of 312 students in early (11–13 years) or middle adolescence (14–15 years) participated from a range of SES backgrounds. Word identification emerged as a strong predictor of reading comprehension across adolescence and text genres. Gender effects favouring female students were evident for reading frequency but not for reading skill itself. Reading habits also differed, and comprehension advantages were observed among females for fiction and males for non-fiction. Age effects emerged for reading frequency, which was lower in middle adolescence. Although more time was spent on digital than on traditional texts, traditional extended text reading was the only reading habit to predict inference-making in comprehension and to distinguish skilled from less skilled comprehenders. The theoretical and educational implications of these results are discussed

    Degradation of microbial fluorescence biosignatures by solar ultraviolet radiation on Mars

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    Recent and proposed robotic missions to Mars are equipped with implements to expose or excavate fresh material from beneath the immediate surface. Once brought into the open, any organic molecules or potential biosignatures of present or past life will be exposed to the unfiltered solar ultraviolet (UV) radiation and face photolytic degradation over short time courses. The key question, then, is what is the window of opportunity for detection of recently exposed samples during robotic operations? Detection of autofluorescence has been proposed as a simple method for surveying or triaging samples for organic molecules. Using a Mars simulation chamber we conduct UV exposures on thin frozen layers of two model microorganisms, the radiation-resistant polyextremophile Deinococcus radiodurans and the cyanobacterium Synechocystis sp. PCC 6803. Excitation–emission matrices (EEMs) are generated of the full fluorescence response to quantify the change in signal of different cellular fluorophores over Martian equivalent time. Fluorescence of Deinococcus cells, protected by a high concentration of carotenoid pigments, was found to be relatively stable over 32 h of Martian UV irradiation, with around 90% of the initial signal remaining. By comparison, fluorescence from protein-bound tryptophan in Synechocystis is much more sensitive to UV photodegradation, declining to 50% after 64 h exposure. The signal most readily degraded byUV irradiation is fluorescence of the photosynthetic pigments – diminished to only 35% after 64 h. This sensitivity may be expected as the biological function of chlorophyll and phycocyanin is to optimize the harvesting of light energy and so they are readily photobleached. A significant increase in a *450 nm emission feature is interpreted as accumulation of fluorescent cellular degradation products from photolysis. Accounting for diurnal variation in Martian sunlight, this study calculates that frozen cellular biosignatures would remain detectable by fluorescence for at least several sols; offering a sufficient window for robotic exploration operations

    The second national audit of intermediate care

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    Intermediate care services have developed internationally to expedite discharge from hospital and to provide an alternative to an emergency hospital admission. Inconsistencies in the evidence base and under-developed governance structures led to concerns about the care quality, outcomes and provision of intermediate care in the NHS. The National Audit of Intermediate Care was therefore established by an interdisciplinary group. The second national audit reported in 2013 and included crisis response teams, home-based and bed-based services in approximately a half of the NHS. The main findings were evidence of weak local strategic planning, considerable under-provision, delays in accessing the services and lack of mental health involvement in care. There was a very high level of positive patient experience reported across all types of intermediate care, though reported involvement with care decisions was less satisfactory

    Effectiveness and persistence of acitretin, ciclosporin, fumaric acid esters and methotrexate for patients with moderate-to-severe psoriasis: a cohort study from BADBIR

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    Background Real-world data evaluating effectiveness and persistence of systemic therapies for patients with psoriasis are limited. Objectives To determine the effectiveness and persistence of acitretin, ciclosporin, fumaric acid esters (FAEs) and methotrexate in patients with moderate-to-severe psoriasis. Methods Data from The British Association of Dermatologists Biologics and Immunomodulators Register (BADBIR), a prospective, multi-centre pharmacovigilance register of patients with moderate-to-severe psoriasis receiving biologic and/or conventional systemic therapies, were analysed. Eligible patients were ≥16 years of age receiving a first course of acitretin, ciclosporin, FAEs or methotrexate between 2007 and 2021 with ≥6 months’ follow-up. Effectiveness was defined as achieving absolute Psoriasis Area and Severity Index (aPASI) ≤ 2 reported ≥4 weeks after treatment start date until stop date. To identify baseline clinical variables associated with treatment effectiveness, we used multivariable logistic regression models estimating the adjusted odds ratio (aOR) of achieving aPASI ≤2. To describe drug persistence associated with ineffectiveness, occurrence of adverse events or other reasons of discontinuation, survival estimates with 95% confidence interval (CI) were obtained using a flexible parametric model. Results were obtained using multiple imputed data. Results In total, 5430 patients were included in the analysis: 1023 (19%) on acitretin, 1401 (26%) ciclosporin, 347 (6%) FAEs and 2659 (49%) methotrexate at registration. The proportion of patients who achieved aPASI ≤ 2 was lower with acitretin 118 (21%) compared with those on ciclosporin 233 (34%), FAEs 43 (30%) and methotrexate 372 (32%). Factors associated with ineffectiveness included prior experience to previous non-biologic systemic therapies (acitretin) [(aOR, (95% CI) 0.64 (0.42, 0.96)], male sex (methotrexate) 0.58 (0.46, 0.74), co-morbidities 0.70 (0.51, 0.97) and alcohol consumption (≤14 units per week) (ciclosporin) 0.70 (0.50, 0.98). Persistence associated with all reasons of discontinuation showed better survival for methotrexate compared with acitretin, ciclosporin and FAEs cohorts at 12 months [(Survival estimate (95% CI), 46.1 (44.0, 48.3), 31.9 (29.4, 34.7), 30.0 (27.5, 32.4) and 35.0 (29.9, 40.9)], respectively. Conclusions The real-world effectiveness and persistence of acitretin, ciclosporin, FAEs and methotrexate were generally low. Previous non-biologic systemic therapies, male sex, comorbidities and alcohol consumption were risk factors associated with treatment ineffectiveness
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