162 research outputs found

    Exploring the relationship between high level anomia, attention and automatic vs. controlled processing: a retrospective data analysis

    Get PDF
    This retrospective data analysis examined non-linguistic, cognitive functions that may play a role in mild anomia: selective attention and automatic vs. controlled processing. Participants with mild anomia and typical controls were tested using the Covert Orienting of Visuospatial Attention Test, alone and with linguistic interference, at two ISIs representing automatic and controlled processing. Participants with anomia showed deficits in automatic but not controlled processing on the COVAT alone, and deficits in selective attention on the COVAT with interference. Results suggest these cognitive abilities should be assessed in individuals reporting anomia who score near or within normal limits on language assessments

    The benefits, challenges and impacts of telehealth student clinical placements for accredited health programs during the COVID-19 pandemic

    Get PDF
    Introduction Despite the advantages of telehealth, there has been a reluctance in its widespread adoption. During the COVID-19 pandemic, telehealth services and related placements increased internationally. Yet, there is currently limited research on the use of telehealth for student clinical placements. Aim To explore the perceived benefits, challenges, and impacts of telehealth placements for key stakeholders (clients, students, clinical educators, and placement co-ordinators) in allied health courses. Methods Stakeholder experiences with telehealth placements, undertaken within an Australian Allied Health University Clinic, were explored in virtual focus groups held between November 2020 and March 2021. These discussions used semi-structured interview questions, were audiotaped and transcribed verbatim. They were then thematically analyzed independently by two researchers, then cross-checked for consistency, using a qualitative descriptive approach, with reflexivity applied. Results Twenty-six stakeholders from six allied health disciplines participated in seven homogeneous focus groups. Three themes were identified: (1) telehealth placements support competency development and graduate employability; (2) telehealth placements enable students to provide person centered-care; and (3) telehealth placements enabled innovation. Conclusion Telehealth placements can make a valuable contribution as part of an overall placement program within accredited health courses and offer distinct advantages to student learning outcomes

    Advanced EFL learners' beliefs about language learning and teaching: a comparison between grammar, pronunciation, and vocabulary

    Get PDF
    This paper reports on the results of a study exploring learners’ beliefs on the learning and teaching of English grammar, pronunciation and vocabulary at tertiary level. While the importance of learners’ beliefs on the acquisition process is generally recognized, few studies have focussed on and compared learners’ views on different components of the language system. A questionnaire containing semantic scale and Likert scale items probing learners’ views on grammar, pronunciation and vocabulary was designed and completed by 117 native speakers of Dutch in Flanders, who were studying English at university. The analysis of the responses revealed that (i) vocabulary was considered to be different from grammar and pronunciation, both in the extent to which an incorrect use could lead to communication breakdown and with respect to the learners’ language learning strategies, (ii) learners believed in the feasibility of achieving a native-like proficiency in all three components, and (iii) in-class grammar, pronunciation and vocabulary exercises were considered to be useful, even at tertiary level. The results are discussed in light of pedagogical approaches to language teaching

    Detectors for the James Webb Space Telescope Near-Infrared Spectrograph I: Readout Mode, Noise Model, and Calibration Considerations

    Full text link
    We describe how the James Webb Space Telescope (JWST) Near-Infrared Spectrograph's (NIRSpec's) detectors will be read out, and present a model of how noise scales with the number of multiple non-destructive reads sampling-up-the-ramp. We believe that this noise model, which is validated using real and simulated test data, is applicable to most astronomical near-infrared instruments. We describe some non-ideal behaviors that have been observed in engineering grade NIRSpec detectors, and demonstrate that they are unlikely to affect NIRSpec sensitivity, operations, or calibration. These include a HAWAII-2RG reset anomaly and random telegraph noise (RTN). Using real test data, we show that the reset anomaly is: (1) very nearly noiseless and (2) can be easily calibrated out. Likewise, we show that large-amplitude RTN affects only a small and fixed population of pixels. It can therefore be tracked using standard pixel operability maps.Comment: 55 pages, 10 figure

    Effects of exposure to bodies of different sizes on perception of and satisfaction with own body size:Two randomized studies

    Get PDF
    Body dissatisfaction is prevalent among women and associated with subsequent obesity and eating disorders. Exposure to images of bodies of different sizes has been suggested to change the perception of “normal” body size in others. We tested whether exposure to different-sized (otherwise identical) bodies changes perception of own and others’ body size, satisfaction with body size and amount of chocolate consumed. In Study 1, 90 18-25 year-old women with normal BMI were randomised into one of three groups to complete a 15 min two-back task using photographs of women either of “normal weight” (Body Mass Index (BMI) 22-23kg/m2, or altered to appear either under- or over-weight. Study 2 was identical except the 96 participants had high baseline body dissatisfaction and were followed-up after 24 hours. We also conducted a mega-analysis combining both studies. Participants rated size of others’ bodies, own size, and satisfaction with size pre- and post-task. Post-task ratings were compared between groups, adjusting for pre-task ratings. Participants exposed to over- or normal- weight images subsequently perceived others’ bodies as smaller, in comparison to those shown underweight bodies (p<0.001). They also perceived their own bodies as smaller (Study 1 p=0.073; Study 2 p=0.018; mega-analysis p=0.001), and felt more satisfied with their size (Study 1 p=0.046; Study 2 p=0.004; mega-analysis p=0.006). There were no differences in chocolate consumption. This study suggests that a move towards using images of women with a BMI in the healthy range in the media may help to reduce body dissatisfaction, and the associated risk of eating disorders

    Consistency, completeness and external validity of ethnicity recording in NHS primary care records: a cohort study in 25 million patients’ records at source using OpenSAFELY

    Get PDF
    Background: Ethnicity is known to be an important correlate of health outcomes, particularly during the COVID-19 pandemic, where some ethnic groups were shown to be at higher risk of infection and adverse outcomes. The recording of patients’ ethnic groups in primary care can support research and efforts to achieve equity in service provision and outcomes; however, the coding of ethnicity is known to present complex challenges. We therefore set out to describe ethnicity coding in detail with a view to supporting the use of this data in a wide range of settings, as part of wider efforts to robustly describe and define methods of using administrative data. Methods: We describe the completeness and consistency of primary care ethnicity recording in the OpenSAFELY-TPP database, containing linked primary care and hospital records in > 25 million patients in England. We also compared the ethnic breakdown in OpenSAFELY-TPP with that of the 2021 UK census. Results: 78.2% of patients registered in OpenSAFELY-TPP on 1 January 2022 had their ethnicity recorded in primary care records, rising to 92.5% when supplemented with hospital data. The completeness of ethnicity recording was higher for women than for men. The rate of primary care ethnicity recording ranged from 77% in the South East of England to 82.2% in the West Midlands. Ethnicity recording rates were higher in patients with chronic or other serious health conditions. For each of the five broad ethnicity groups, primary care recorded ethnicity was within 2.9 percentage points of the population rate as recorded in the 2021 Census for England as a whole. For patients with multiple ethnicity records, 98.7% of the latest recorded ethnicities matched the most frequently coded ethnicity. Patients whose latest recorded ethnicity was categorised as Other were most likely to have a discordant ethnicity recording (32.2%). Conclusions: Primary care ethnicity data in OpenSAFELY is present for over three quarters of all patients, and combined with data from other sources can achieve a high level of completeness. The overall distribution of ethnicities across all English OpenSAFELY-TPP practices was similar to the 2021 Census, with some regional variation. This report identifies the best available codelist for use in OpenSAFELY and similar electronic health record data

    Adenovirus vector delivery stimulates natural killer cell recognition

    Get PDF
    We report that delivery of first-generation replication-deficient adenovirus (RDAd) vectors into primary human fibroblasts is associated with the induction of natural killer (NK) cell-mediated cytolysis in vitro. RDAd vector delivery induced cytolysis by a range of NK cell populations including the NK cell clone NKL, primary polyclonal NK lines and a proportion of NK clones (36 %) in autologous HLA-matched assays. Adenovirus-induced cytolysis was inhibited by antibody blocking of the NK-activating receptor NKG2D, implicating this receptor in this function. NKG2D is ubiquitously expressed on NK cells and CD8+ T cells. Significantly, γ-irradiation of the vector eliminated the effect, suggesting that breakthrough expression from the vector induces at least some of the pro-inflammatory responses of unknown aetiology following the application of RDAd vectors during in vivo gene delivery
    corecore