1,804 research outputs found

    i-STEM Summer Institute: An Integrated Approach to Teacher Professional Development in STEM

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    The importance of STEM education to societal developments provides justification for assuring K–12 teachers are prepared to teach the related content. Inservice teacher professional development is critical to achieving the goal of enhanced student knowledge of STEM. Combining the need for increased capacity to teach STEM and the extant literature on teacher development, we created a four-day residential summer institute for 230 grade 4–9 teachers. The institute was designed to enhance the participants\u27 content knowledge, use of inquiry for instruction, and efficacy for teaching STEM. A combination of content strands, plenary sessions, field trips and planning time were augmented by the provision of the resources necessary to implement the curriculum the participants learned. Pre- and post-test results of the participants\u27 comfort, pedagogical discontentment, inquiry implementation, perceived efficacy, and content knowledge in the context of STEM revealed significant changes (p \u3c 01). In addition, pre- and post-test results indicate the participants’ perceptions and conceptions of STEM achieved substantial gains. Our report provides the details, outcomes, and potential implications for STEM education

    Percutaneous pulmonary valve implantation in humans - Results in 59 consecutive patients

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    Background - Right ventricular outflow tract (RVOT) reconstruction with valved conduits in infancy and childhood leads to reintervention for pulmonary regurgitation and stenosis in later life.Methods and Results - Patients with pulmonary regurgitation with or without stenosis after repair of congenital heart disease had percutaneous pulmonary valve implantation (PPVI). Mortality, hemodynamic improvement, freedom from explantation, and subjective and objective changes in exercise tolerance were end points. PPVI was performed successfully in 58 patients, 32 male, with a median age of 16 years and median weight of 56 kg. The majority had a variant of tetralogy of Fallot (n = 36), or transposition of the great arteries, ventricular septal defect with pulmonary stenosis (n = 8). The right ventricular (RV) pressure (64.4 +/- 17.2 to 50.4 +/- 14 mm Hg, P < 0.001), RVOT gradient (33 +/- 24.6 to 19.5 +/- 15.3, P < 0.001), and pulmonary regurgitation ( PR) (grade 2 of greater before, none greater than grade 2 after, P < 0.001) decreased significantly after PPVI. MRI showed significant reduction in PR fraction (21 +/- 13% versus 3 +/- 4%, P < 0.001) and in RV end-diastolic volume (EDV) (94 +/- 28 versus 82 +/- 24 mL (.) beat(-1) (.) m(-2), P < 0.001) and a significant increase in left ventricular EDV ( 64 +/- 12 versus 71 +/- 13 mL (.) beat(-1.) m(-2), P = 0.005) and effective RV stroke volume ( 37 +/- 7 versus 42 +/- 9 mL (.) beat(-1) (.) m(-2), P = 0.006) in 28 patients (age 19 +/- 8 years). A further 16 subjects, on metabolic exercise testing, showed significant improvement in V(O2)max (26 +/- 7 versus 29 +/- 6 mL (.) kg(-1) (.) min(-1), P < 0.001). There was no mortality.Conclusions - PPVI is feasible at low risk, with quantifiable improvement in MRI-defined ventricular parameters and pulmonary regurgitation, and results in subjective and objective improvement in exercise capacity

    Camera traps and activity signs to estimate density and population trends in wild pigs

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    Massei, G., Cowan, D., Lambert, M., Coats, J., Watola, G., Fox, S., Ward, A., Pietravalle, S

    Cognitive and sensorimotor function in participants being treated for trigeminal neuralgia pain

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    Background Trigeminal neuralgia (TN) is an orofacial condition defined by reoccurring, spontaneous, short-lived but excruciating stabbing pain. Pharmacological interventions constitute the first-line treatment for TN, with antiepileptic drugs commonly prescribed. People treated for TN pain with antiepileptic drugs describe cognitive and motor difficulties affecting activities of daily living, and report poorer quality of life. We undertook the first comprehensive objective evaluation of sensorimotor and cognitive performance in participants being treated for TN pain with antiepileptic drugs relative to age-matched controls. Methods Participants (43 TN, 41 control) completed a battery of sensorimotor (steering, aiming and tracking) and cognitive (working memory, processing speed, inhibition) tasks. Results The TN group performed significantly worse than controls on the sensorimotor tracking and aiming tasks and across all cognitive measures. Conclusions The data explain why patients treated with antiepileptic drugs report impairment when conducting activities of daily living (given the need for cognitive and motor capability within most of these). The study is an important first step in: (i) ensuring there is adequate information on the impact of pharmacological treatment; (ii) identifying measures to determine optimal medication dosage and track change over time; (iii) creating an evidence base that could allow scientific justification of alternative pain treatment options for TN (e.g. the costs/benefits of surgery)

    A consensus building exercise to determine research priorities for silver trauma

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    Background Emergency care research into ‘Silver Trauma’, which is simply defined as major trauma consequent upon relatively minor injury mechanisms, is facing many challenges including that at present, there is no clear prioritisation of the issues. This study aimed to determine the top research priorities to guide future research. Methods This consensus-based prioritization exercise used a three-stage modified Delphi technique. The study consisted of an idea generating (divergent) first round, a ranking evaluation in the second round, and a (convergent) consensus meeting in the third round. Results A total of 20 research questions advanced to the final round of this study. After discussing the importance and clinical significance of each research question, five research questions were prioritised by the experts; the top three research priorities were: (1). What are older people’s preferred goals of trauma care? (2). Beyond the Emergency Department (ED), what is the appropriate combined geriatric and trauma care? (3). Do older adults benefit from access to trauma centres? If so, do older trauma patients have equitable access to trauma centre compared to younger adults? Conclusion The results of this study will assist clinicians, researchers, and organisations that are interested in silver trauma in guiding their future efforts and funding toward addressing the identified research priorities
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