45 research outputs found

    ANALISIS PROFESIONALITAS GURU DALAM PEMBELAJARAN PENJASKES MATERI BELADIRI PENCAK SILAT KELAS VI SDI DAARUL FIKRI KABUPATEN MALANG

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    Efforts to realize a professional teacher requires time and process, there are stages and phases that must be passed. The desire to have a professional teacher does not only come from the government group, education observers, students and parents but the strong desire and intention from the heart of a teacher to improve their potential so that they can become professional teachers. In line with the times that are increasingly developing, the professionalism of teachers becomes a necessity for educators to improve the quality of education quality. This study uses a qualitative approach with analyzed data in the form of descriptive. Sources of data in this study were the principal and teacher of the SDI Social Security Daarul Fikri. This study was intended to determine the implementation of the professionalism of the Physical Education teachers on martial arts martial arts class VI conducted at SDI Daarul Fikri, Malang Regency. Based on the results of the study, it has been shown that the professionalism of teachers in the learning of physical health is satisfactory both from the understanding of students and individual characters of students. The responsibility of a teacher is seen when giving material that is always adapted to the ability of students, and is able to develop material through innovation that the Physical Education teacher does well in accordance with the teacher's target to make this an active and enjoyable learning

    Constraints on the Progenitor System and the Environs of SN 2014J from Deep Radio Observations

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    We report deep EVN and eMERLIN observations of the Type Ia SN 2014J in the nearby galaxy M82. Our observations represent, together with JVLA observations of SNe 2011fe and 2014J, the most sensitive radio studies of Type Ia SNe ever. By combining data and a proper modeling of the radio emission, we constrain the mass-loss rate from the progenitor system of SN 2014J to M˙7.0×1010Myr1\dot{M} \lesssim 7.0\times 10^{-10} {\,{M_{\odot } \,\rm yr^{-1}}} (for a wind speed of 100 km s-1). If the medium around the supernova is uniform, then n ISM lesssim 1.3 cm-3, which is the most stringent limit for the (uniform) density around a Type Ia SN. Our deep upper limits favor a double-degenerate (DD) scenario involving two WD stars for the progenitor system of SN 2014J, as such systems have less circumstellar gas than our upper limits. By contrast, most single-degenerate (SD) scenarios, i.e., the wide family of progenitor systems where a red giant, main-sequence, or sub-giant star donates mass to an exploding WD, are ruled out by our observations. (While completing our work, we noticed that a paper by Margutti et al. was submitted to The Astrophysical Journal. From a non-detection of X-ray emission from SN 2014J, the authors obtain limits of M˙1.2×109\dot{M} \lesssim 1.2 \times 10^{-9} M ☉ yr-1 (for a wind speed of 100 km s-1) and n ISM lesssim 3.5 cm-3, for the ρ∝r -2 wind and constant density cases, respectively. As these limits are less constraining than ours, the findings by Margutti et al. do not alter our conclusions. The X-ray results are, however, important to rule out free-free and synchrotron self-absorption as a reason for the radio non-detections.) Our estimates on the limits on the gas density surrounding SN2011fe, using the flux density limits from Chomiuk et al., agree well with their results. Although we discuss the possibilities of an SD scenario passing observational tests, as well as uncertainties in the modeling of the radio emission, the evidence from SNe 2011fe and 2014J points in the direction of a DD scenario for both

    Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

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    Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries
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