UPAYA MENINGKATKAN PARTISIPASI SISWA DALAM PEMBELAJARAN PENDIDIKAN JASMANI MELALUI PERMAINAN GOBAK SODOR : Penelitian Tindakan Kelas V di SD Laboratorium Percontohan UPI Bandung

Penelitian ini bertujuan untuk meningkatkan partisipasi siswa kelas V SD Laboratorium Percontohan UPI menggunakan permainan gobak sodor. Metode penelitian yang digunakan dalam penelitian ini adalah metode penelitian tindakan kelas (Classroom Action Research). Subjek penelitian ini siswa kelas V SD Laboratorium Percontohan UPI Bandung. Yang berjumlah 27 siswa, yang terdiri dari 15 laki-laki dan 12 perempuan. Desain penelitian ini menggunakan model Kemmis dan Mc Taggart. Penelitian ini dilaksanakan dalam dua siklus. Dengan menggunakan desain penelitian atau langkah-langkah penelitian tindakan yaitu perencanaan (planning), tindakan (acting), pengamatan (observing), dan refleksi (reflecting). Instrumen yang digunakan dalam penelitian ini adalah lembar observasi partisipasi siswa, catatan lapangan, dokumentasi, dan evaluasi. Berdasarkan hasil penelitian didapat hasil proses pembelajaran siswa pra observasi 26,03 (43,3%) pada siklus 1 tindakan 1 adalah 30,22 (50,36%), siklus 1 tindakan 2 adalah 33,7 (56,16%), siklus 2 tindakan 1 adalah 43,2 (72%) dan pada siklus 2 tindakan 2 adalah 48,03(80,05%). Dari hasil pengolahan data dan analisis data dapat disimpulkan bahwa permainan gobak sodor dapat meningkatkan partisipasi siswa kelas V SD Laboratorium Percontohan UPI dalam pembelajaran pendidikan jasmani ;---The aim of the research is to assist students’ participation in physical education on Students in Grade V at Elementary School of Laboratorium Percontohan UPI Bandung. The method used in this research is Classroom Action Research (CAR). The subject of this research is students in Grade V at Elementary School of Laboratorium Percontohan UPI Bandung, consist of 27 students; 15 boys and 12 girls. This research used Kemmis and Mc Taggart models and done in two cycles. The steps of research are planning, acting, observing and reflecting. Instruments used in this research are students’ observation sheets, documents, documentation and evaluation. According to the result of research, students’ learning process pre observation is 26,03 (43,3%). For cycle 1 and action 1 is 30,22 (50,36%), cycle 1 action 2 is 33,7 (56,16%), cycle 2 action 1 is 43,2 (72%) and cycle 2 action 2 is 48,03 (80,05%). From the result of data analisis it can be concluded that Gobak Sodor game can assist students’ participation in Jasmani lesson

Bubble formation in ϕ6\phi^6 potential

Scalar field theory with an asymmetric potential is studied at zero temperature and high-temperature for $\phi^6$ potential. The equations of motion are solved numerically to obtain O(4) spherical symmetric and O(3) cylindrical symmetric bounce solutions. These solutions control the rates for tunneling from the false vacuum to the true vacuum by bubble formation. The range of validity of the thin-wall approximation (TWA) is investigated. An analytical solution for the bounce is presented, which reproduces the action in the thin-wall as well as the thick-wall limits.Comment: 22 pag

Topological Defects in the Left-Right Symmetric Model and their Relevance to Cosmology

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Analytical approach to the transition to thermal hopping in the thin- and thick-wall approximations

The nature of the transition from the quantum tunneling regime at low temperatures to the thermal hopping regime at high temperatures is investigated analytically in scalar field theory. An analytical bounce solution is presented, which reproduces the action in the thin-wall as well as thick-wall limits. The transition is first order for the case of a thin wall while for the thick wall case it is second order.Comment: Latex file, 22 pages, 4 Postscript figure