Rahmadi Rahmadi
Universitas Mulawarman

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The Influence Of Forehand Grip Handling And Backhand Grip On Short Service Ability In Badminton Of Collage Students Jufri Jufri; Ruslan Ruslan; Rahmadi Rahmadi
Kinestetik : Jurnal Ilmiah Pendidikan Jasmani Vol 4 No 2 (2020): SEPTEMBER (ACCREDITED SINTA 3)
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jk.v4i2.12318

Abstract

This study aims to determine the effect of the handle on the short service ability of badminton games in Penjaskesrek students. This research is a pre-experiment, namely tow Group pretest-posttest design, the population in the study were 40 students of Physical Education Class 2017, Mulawarman University Samarinda. The data collection technique uses a short service test instrument, namely the forehand grip service test grip and the backhand grip handle. Based on the data analysis, the results obtained from the pretest average value of the forehand grip grip ability of 32.3500, the average posttest value of the forehand grip grip of 52.6000, the value of t count> is 7.818, the significance value of the probability is 0.000, and the t table is 2.818. and the mean value of the backhand grip pre-test ability of 32.1500, the average value of the backhand grip posttest of 48.1000, the value of t count> of 10,747, the significance value of the probability of 0.000, and the t table of 2,746. the value of t table 0.050 is greater than t count 0.025 and the value of sig <a (0.000 <0.05), so it can be seen that Ho is accepted and H1 is accepted. This means that there is a significant effect of the effect of the forehand grip and the backhand grip of badminton on students by 95%.
Dinamika Sosial Ekonomi: Dampak Keberadaan Tambang Batu Bara di Desa Kerta Buana, Kutai Kartanegara Ummul Khurrin Ain; Mei Vita Romadon Ningrum; Rahmadi Rahmadi; Najma Nur Mawaddah
Jurnal Pendidikan Geografi Undiksha Vol. 14 No. 1 (2026): Jurnal Pendidikan Geografi Undiksha
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpg.v14i1.103086

Abstract

Coal is a major economic pillar in East Kalimantan, Indonesia and a source of national income. Specifically, Kerta Buana Village is a coal-producing village with mining operations operated by two large mining companies. As a transmigration site, social integration in Kerta Buana Village is formed through a complex process of cultural adaptation. Furthermore, mining exploration in the area around Kerta Buana coincides with the arrival of transmigrants. Based on this background, this study was conducted to analyze the impact of the coal mining industry on the social and economic conditions of the local community around the mine in Kerta Buana Village. This study is a qualitative study with data collection methods conducted through documentation, observation, and interviews. The findings show that the social impacts are reflected in health, education, as well as social and environmental vulnerabilities, while the economic impacts are seen in employment, non-mining economic activities, and infrastructure development. To address these negative impacts, sustainable and responsible mining practices, strict law enforcement, corporate social responsibility programs, and effective environmental rehabilitation are required.