The Influence of Scientific Approach on Increased Interest, Creativity and Learning Outcomes: An Action Class Research

Class Action Research (CAR) was conducted to analyze the increase of interest, creativity and interest, creativity, and learning outcomes of students in the Mattayeom 4 class Phatanakansuksa Foundation School Thailand by implementing the Scientific approach method. During the observation and review with the English teacher Mattayeom 4, the researcher was able to describe the profile of student learning outcomes in grade 1 as a class with great potential but not well-honed. The low interest of students in this learning process can result in a learning process that is not optimal so that the results obtained are not optimal. The results of the implementation of classroom action research in the Mattayeom 4/2 Phatanakansuksa Foundation School's Real Work Lecture program which shows an increase in learning outcomes through a direct learning process applied by teachers/researchers.

Linear Analysis of Waves in Relativistic Hot Plasma and in Degenerate Plasma

Using relativistic Vlasov-Maxwell equations, a general expression for the conductivity tensor is derived in spherical polar coordinates. Modes of ultra relativistic electron plasma embedded in a strong magnetic field are investigated for perpendicular propagation. For this purpose, an ultra-relativistic Maxwellian distribution function is employed to derive different modes for strong magnetic field limit. In particular, the dispersion relations for the ordinary mode and the extraordinary mode (O-mode and X- mode) are obtained. Graphs of these dispersion relations and of the imaginary part of the frequency are drawn for some arbitrary values of the parameters. It is observed that the damping rate increases gradually, reaches some maximum point and then decreases for larger wavenumbers. Further, increasing the strength of the magnetic field lowers the maximum value of the damping rate. Bernstein mode for a relativistic degenerate electron plasma is also investigated. By employing Fermi-Dirac distribution function a generalized dispersion relation for the Bernstein mode is obtained. Two cases i.e., non-relativistic and ultra-relativistic are discussed. The dispersion relations obtained are graphically presented for some specific values of the parameters depicting how the propagation characteristics of Bernstein waves as well as the Upper Hybrid oscillations are modified with the increase in plasma number density.