Pengelolaan Pembelajaran Teknik Pemesinan Di SMK Warga Surakarta (Etnografi Mikro)

Tujuan penelitian ini adalah (1) Untuk mengetahui model kurikulum dan silabus yang digunakan dalam pembelajaran teknik pemesinan, (2) Untuk mengetahui tujuan pembelajaran teknik pemesinan, (3) Untuk mengetahui teknik-teknik yang digunakan dalam pembelajaran teknik pemesinan, (4) Untuk mengetahui peran guru dan siswa dalam pembelajaran teknik pemesinan, (5) Untuk mengetahui media peralatan yang digunakan dalam pembelajaran teknik pemesinan, (6) Untuk mengetahui model evaluasi yang digunakan dalam pembelajaran teknik pemesinan. Jenis penelitian ini adalah penelitian kualitatif dengan desain penelitian etnografi. Penelitian ini mengambil lokasi di SMK Warga Surakarta. Teknik pengumpulan data dilakukan dengan wawancara, observasi, dan dokumen. Analisis data menggunakan metode analisis etnografi. Hasil penelitiannya adalah: (1) model kurikulum dan silabus yang digunakan adalah Kurikulum Tingkat satuan pendidikan (KTSP) yang mengacu pada Badan Standar Nasional Pendidikan dan mengacu pada Standar Kopetensi Kerja Nasional (SKKN), (2) tujuan pembelajaran teknik pemesinan adalah untuk menghasilkan lulusan yang merupakan tenaga terdidik, terlatih, dan terampil yang memenuhi kompetensi yang dipersyaratkan oleh dunia kerja dalam bidang teknik yang relevan, (3) teknik-teknik yang digunakan dalam pembelajaran teknik pemesinan adalah ceramah, Tanya jawab, diskusi, pemberian tugas, demonstrasi, latihan dan praktek, (4) peran guru dalam pembelajaran teknik pemesinan adalah sebagai sumber belajar, sebagai fasilitator, sebagai pengelola pembelajaran, sebagai demonstrator, sebagai pembimbing, sebagai motivator dan juga sebagai evaluator dalam meningkatkan keberhasilan program belajar mengajar baik dalam kegiatan pengajaran teori maupun kegiatan praktikum di laboratorium. Peran siswa dalam pembelajaran yaitu mendengarkan, mencatat, mengerjakan, mempraktekan, bertanya dan menjawab pertanyaan yang diberikan oleh guru pada saat proses belajar mengajar baik dalam kegiatan pembelajaran teori maupun kegiatan pembelajaran praktikum, (5) media yang digunakan dalam pembelajaran adalah multi media, media gambar, OHP proyektor, media cetak, dan berbagai peralatan mesin dan bahan lain yang ada di laboratorium, (6) evaluasi dalam pembelajaran: formatif dan sumatif

Patients' Expectations before and Satisfaction after Ultrasound Guided Foam Sclerotherapy for Varicose Veins

AbstractObjectivesUltrasound guided foam sclerotherapy (UGFS) is a minimally invasive treatment for varicose veins (VV) whose clinical and cost-effectiveness remains incompletely defined. The aim of the current study was to examine patients' expectations before and satisfaction after UGFS for VV in terms of relief of lower limb symptoms, improvement in appearance, and beneficial effect on life-style.MethodsA consecutive series of 351 patients (464 limbs) undergoing UGFS for VV completed questionnaires one week prior to and six months after treatment.ResultsPre and post-treatment response rates were 80%; 60% returned both questionnaires. Virtually all patients were expecting improvement in lower limb symptoms; these were exceeded in a third. Most patients expected cosmetic improvement and these were largely met. Two-thirds of patients expected significant life-style (clothes, work, social) benefits and outcomes were slightly less than expected. A quarter expected improvement in their interpersonal relationships. This benefit was greater than expected occurring in one-third of patients. Overall, a quarter of patients had their expectations exceeded and 10% (appearance and relationships) to 25% (clothing, work and social and leisure activities) were left with unmet expectations.DiscussionWhen specifically asked most patients admit to having a wide range of expectations in relation to their VV treatment, many of them probably unanticipated by the clinician. However, present data indicate that UGFS is usually able to meet, and often exceeds, these physical and psychosocial needs and expectations. UGFS is, therefore, a highly effective treatment for VV from the patients' perspective

CanadiEM: Accessing a Virtual Community of Practice to Create a Canadian National Medical Education Institution

Background: The rise of free open-access medical education (FOAM) has led to a wide range of online resources in emergency medicine. Canadian physicians have been active contributors to FOAM. Objectives: We aimed to create a virtual community of practice that would serve as a national platform for collaboration, learning, and knowledge dissemination. Methods: CanadiEM was formed in 2016 from the merger of two Canadian websites and a podcast. Using a community-of-practice model, we introduced two training programs to support junior community members in becoming core editorial team members and employed asynchronous Web technologies to facilitate collaboration. We also introduced a coached peer review process and formed strategic alliances that aim to ensure a high quality of publication. Results: CanadiEM has become a portal for readers to access a broad range of FOAM content. The website has published 782 articles. Of these, 71 have undergone a coached peer review process. The website has received over 2.5 million page views from 217 countries, and the associated CRACKCast podcast has been downloaded over 750,000 times. Conclusions: CanadiEM has succeeded in building a national multi-interface dissemination network that fosters collaboration and knowledge sharing in emergency medicine while fostering junior digital scholars. The construction of a community of practice has been facilitated by quality assurance, training programs, and the use of asynchronous Web technologies. Ongoing challenges in sustainability include a volunteer workforce with high turnover

Localized D-dimensional global k-defects

We explicitly demonstrate the existence of static global defect solutions of arbitrary dimensionality whose energy does not diverge at spatial infinity, by considering maximally symmetric solutions described by an action with non-standard kinetic terms in a D+1 dimensional Minkowski space-time. We analytically determine the defect profile both at small and large distances from the defect centre. We verify the stability of such solutions and discuss possible implications of our findings, in particular for dark matter and charge fractionalization in graphene.Comment: 6 pages, published versio

Cosmological distance indicators

We review three distance measurement techniques beyond the local universe: (1) gravitational lens time delays, (2) baryon acoustic oscillation (BAO), and (3) HI intensity mapping. We describe the principles and theory behind each method, the ingredients needed for measuring such distances, the current observational results, and future prospects. Time delays from strongly lensed quasars currently provide constraints on $H_0$ with < 4% uncertainty, and with 1% within reach from ongoing surveys and efforts. Recent exciting discoveries of strongly lensed supernovae hold great promise for time-delay cosmography. BAO features have been detected in redshift surveys up to z <~ 0.8 with galaxies and z ~ 2 with Ly-$\alpha$ forest, providing precise distance measurements and $H_0$ with < 2% uncertainty in flat $\Lambda$CDM. Future BAO surveys will probe the distance scale with percent-level precision. HI intensity mapping has great potential to map BAO distances at z ~ 0.8 and beyond with precisions of a few percent. The next years ahead will be exciting as various cosmological probes reach 1% uncertainty in determining $H_0$, to assess the current tension in $H_0$ measurements that could indicate new physics.Comment: Review article accepted for publication in Space Science Reviews (Springer), 45 pages, 10 figures. Chapter of a special collection resulting from the May 2016 ISSI-BJ workshop on Astronomical Distance Determination in the Space Ag

Partially conserved axial current constraints on pion production/absorption within nonrelativistic dynamics

We show the necessity of two-nucleon axial currents and associated pion emission/ absorption operators for the partial conservation of the axial current (PCAC) nuclear matrix elements with arbitrary nuclear dynamics described by a nonrelativistic Schroedinger equation. As examples we construct such nonrelativistic axial two-body currents in the linear- and heterotic (g_A = 1.26) sigma models, with an optional isoscalar vector (omega) meson exchange. The nuclear matrix elements obey PCAC only if the nuclear wave functions used in the calculation are solutions to the Schroedinger equation with the static one-meson-exchange potential constructed in the respective (sigma) model. The same holds true for the nucler pion production amplitude, since it is proportional to the divergence of the axial current matrix element, by virtue of PCAC. Thus we found a new consistency condition between the pion creation/absorption operator and the nuclear Hamiltonian. We present examples drawn from our models and discuss implications for one-pion-two-nucleon processes.Comment: 19 pages, 7 figures, submitted to Phys. Rev.

Measurements of the observed cross sections for exclusive light hadron production in e^+e^- annihilation at \sqrt{s}= 3.773 and 3.650 GeV

By analyzing the data sets of 17.3 pb$^{-1}$ taken at $\sqrt{s}=3.773$ GeV and 6.5 pb$^{-1}$ taken at $\sqrt{s}=3.650$ GeV with the BESII detector at the BEPC collider, we have measured the observed cross sections for 12 exclusive light hadron final states produced in $e^+e^-$ annihilation at the two energy points. We have also set the upper limits on the observed cross sections and the branching fractions for $\psi(3770)$ decay to these final states at 90% C.L.Comment: 8 pages, 5 figur

Measurement of J/psi production in association with a W (+/-) boson with pp data at 8 TeV

A measurement of the production of a prompt J/ψ meson in association with a W± boson with W± → μν and J/ψ → μ+μ− is presented for J/ψ transverse momenta in the range 8.5–150 GeV and rapidity |yJ/ψ| < 2.1 using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton-proton centre-of-mass energy of s√ = 8 TeV and correspond to an integrated luminosity of 20.3 fb−1. The ratio of the prompt J/ψ plus W± cross-section to the inclusive W± cross-section is presented as a differential measurement as a function of J/ψ transverse momenta and compared with theoretical predictions using different double-parton-scattering cross-sections.M. Aaboud, G. Aad, B. Abbott, D. C. Abbott ... Paul D. Jackson ... Martin White ... et al. (The ATLAS collaboration

Constraints on mediator-based dark matter and scalar dark energy models using root s = 13 TeV pp collision data collected by the ATLAS detector

Constraints on selected mediator-based dark matter models and a scalar dark energy model using up to 37 fb⁻¹ s√ = 13 TeV pp collision data collected by the ATLAS detector at the LHC during 2015-2016 are summarised in this paper. The results of experimental searches in a variety of final states are interpreted in terms of a set of spin-1 and spin-0 single-mediator dark matter simplified models and a second set of models involving an extended Higgs sector plus an additional vector or pseudo-scalar mediator. The searches considered in this paper constrain spin-1 leptophobic and leptophilic mediators, spin-0 colour-neutral and colour-charged mediators and vector or pseudo-scalar mediators embedded in extended Higgs sector models. In this case, also s√ = 8 TeV pp collision data are used for the interpretation of the results. The results are also interpreted for the first time in terms of light scalar particles that could contribute to the accelerating expansion of the universe (dark energy).M. Aaboud … A. Duvnjak … P. Jackson … J.L. Oliver … A. Petridis … A. Qureshi … A.S. Sharma … M.J. White … et al. [The ATLAS Collaboration

Heavy quarkonium: progress, puzzles, and opportunities

A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experimental activity. The early years of this period were chronicled in the Quarkonium Working Group (QWG) CERN Yellow Report (YR) in 2004, which presented a comprehensive review of the status of the field at that time and provided specific recommendations for further progress. However, the broad spectrum of subsequent breakthroughs, surprises, and continuing puzzles could only be partially anticipated. Since the release of the YR, the BESII program concluded only to give birth to BESIII; the $B$-factories and CLEO-c flourished; quarkonium production and polarization measurements at HERA and the Tevatron matured; and heavy-ion collisions at RHIC have opened a window on the deconfinement regime. All these experiments leave legacies of quality, precision, and unsolved mysteries for quarkonium physics, and therefore beg for continuing investigations. The plethora of newly-found quarkonium-like states unleashed a flood of theoretical investigations into new forms of matter such as quark-gluon hybrids, mesonic molecules, and tetraquarks. Measurements of the spectroscopy, decays, production, and in-medium behavior of c\bar{c}, b\bar{b}, and b\bar{c} bound states have been shown to validate some theoretical approaches to QCD and highlight lack of quantitative success for others. The intriguing details of quarkonium suppression in heavy-ion collisions that have emerged from RHIC have elevated the importance of separating hot- and cold-nuclear-matter effects in quark-gluon plasma studies. This review systematically addresses all these matters and concludes by prioritizing directions for ongoing and future efforts.Comment: 182 pages, 112 figures. Editors: N. Brambilla, S. Eidelman, B. K. Heltsley, R. Vogt. Section Coordinators: G. T. Bodwin, E. Eichten, A. D. Frawley, A. B. Meyer, R. E. Mitchell, V. Papadimitriou, P. Petreczky, A. A. Petrov, P. Robbe, A. Vair