Optimalisation of E-Resources from National Library and Online Information of Covid-19 to Develop Literacy and Numeracy Test Like PISA

By utilising the online information of Covid-19 from e-resources including the national library and online information, the development of literacy and numeracy item test called PISA-Cosains (science context of Covid-19) was carried out. The process was oriented to the PISA (Programme for International Student Assessment) science framework that has been carried out to produce an instrument product that is valid and practical. The method used in this study is the Research and Development method. The analysis in this study uses Rasch\u27s Item Response Theory (IRT) model. The development process utilises e-resources from national library and online portal of Indonesian government. Based on the theoretical validation, the results showed that the questions developed were valid. The practicality of the questions can be known through the results of questionnaire analysis of the test takers at the trial stage. The results of the practicality questionnaire show that this question belongs to the practical category. The results of quantitative analysis through field test trials show a significant influence from the application of the PISA model question instrument to the improvement of scientific literacy and numeracy skills of junior high school students obtained. However, the level of separation is still relatively low. It indicates that the items are less sensitive to cover the entire continuum of all respondents. Furthermore, when viewed from the item, most of them are fit and have a pretty good point measure correlation

Top 100 Cited Publications in Physics Education in The last Thirty Years: A Bibliometric Analysis

The present study\u27s focus is to analyze the top 100 cited papers (classic papers) in the field of physics education in the last thirty years. The study is aimed to provide insight into the citation pattern, authorship pattern, year, journals, countries of these classic papers with the help of bibliometric analysis. The data for the study was extracted from the Scopus database. The study indicated that among these top 100 papers maximum were in the form of research articles. The majority of these top-cited papers were published during the five years from 2012 to 2016. The average citation per paper was calculated to be 34 citations per paper. American Journal of Physics, Science and Education, and Physical Review Physics Education Research are the leading publication sources. Meanwhile, Springer Nature and the American Physical Society dominated publishing the most impactful research in physics education. Kuhn is recognized as the most productive author. Whereas McDermott received the greatest number of citations. The institutions whose authors have contributed the most included the University of Washington and California State University. The USA has predominance over the production of highly cited papers followed by Germany and Spain. Maximum works cited in these top 100 papers have been published within the 50 years from 1971 to 2020. The research areas in these papers are mainly emphasized on physics education, physics, students, computer-aided instruction, and medical education

Solution of Dirac Equations for Cotangent Potential with Coulomb-type Tensor Interaction for Spin and Pseudospin Symmetries Using Romanovski Polynomials

Abstract   The bound state solutions of Dirac equations for cotangent function potential with the Coulomb-type tensor potential under spin and pseudospin symmetric limits are obtained using finite Romanovski polynomials. The approximate relativistic energy spectra are obtained for spin and pseudospin symmetries exactly. The radial wave functions are obtained in terms of Romanovski polynomials in the limit of spin and pseudospin symmetric conditions. The Coulomb type tensor potential removes the doublet degeneracies for pseudospin and spin symmetric cases. The relativistic energy spectrum for the exact spin symmetric case reduces to the non-relativistic energy spectrum in the non-relativistic limit.     Abstrak   Solusi Persamaan Dirac untuk Potensial Kotangen dengan Tensor Interaksi Tipe-Coulomb untuk Simetri Spin dan Pseudospin Menggunakan Polinomial Romanovski. Solusi keadaan terikat dari persamaan Dirac untuk potensial fungsi kotangen dengan potensial tensor tipe-Coulomb untuk simetri spin dan pseudospin diperoleh menggunakan polinomial Romanovski terbatas. Aproksimasi spektrum energi relativistik diperoleh secara eksak untuk simetri spin dan pseudospin. Fungsi gelombang radial diperoleh dalam bentuk polinomial Romanovski untuk keadaan simetri spin dan pseudospin. Potensial tensor tipe-Coulomb menghilangkan degenerasi doublet untuk kedua kasus simetri spin dan pseudospin. Pada batas non-relativistik, spektrum energi relativistik untuk kasus simetri spin eksak tereduksi menjadi spektrum energi non-relativistik.   Keywords: cotangent potential, Coulomb-type tensor, Dirac equation, pseudospin symmetry, Romanovski polynomial