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All Journal JURNAL ILMU KEOLAHRAGAAN Jurnal Ekonomi dan Bisnis Dharma Andalas Edification Journal : Pendidikan Agama Islam Elsya : Journal of English Language Studies Innovative: Journal Of Social Science Research Journal of Hypermedia & Technology-Enhanced Learning
Riki Wahyudi, Riki
Program Studi S1 Teknik Informatika Fakultas Teknologi dan Ilmu Komputer Universitas Prima Indonesia Jl. Belanga No. 1 simp. Ayahanda
Religion Humanities Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Public Health Social Sciences Other

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Implementasi Manajemen Risiko Dalam Meningkatkan Kemampuan IT Siswa Wahyudi, Riki; Hidayat, Wahyu
Edification Journal : Pendidikan Agama Islam Vol. 6 No. 2 (2024): Januari
Publisher : Sekolah Tinggi Agama Islam (STAI) Bumi Silampari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37092/ej.v6i2.666

Abstract

This study looks at risk management as a concept and how it is used, especially in education (schools). The examination directed talks about the utilization of hazard the executives in further developing understudies' IT abilities at SMPN 1 Baleendah. The research method taken is qualitative because the data collection process is made using interviews, observation, and data analysis. This plans to decide the viability of the execution in the educating and growing experience in the homeroom utilizing data innovation, likewise to figure out the supporting and hindering elements over learning, and to figure out the effect that could happen on the educational experience, so later an assessment will be completed so the educational experience is better continue. Because in improving the quality of education in this modern era, it is very important to pay attention to the use of technology that makes learning programs and the school development process easier. and it is hoped that this research can become an illustration and direction for other schools in general to improve the quality of their education. The results of this study are in order to calculate and assess how effective the use of IT in SMPN 1 Baleendah.
The Speech Act of Request and Refusal in English as a Foreign Language: Hotel Front Desk’s Linguistic Politeness Yunita, Widia; Wahyudi, Riki
Elsya : Journal of English Language Studies Vol. 2 No. 2 (2020): Elsya : Journal of English Language Studies
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/elsya.v2i2.5012

Abstract

The subject matter discussed in this paper is how hotel front desk receptionists handle requests and refusals in their interactions with customers when they use English as a Foreign Language (EFL). The method of this research is descriptive with a qualitative approach, examining the interactions of front desk employees who work at Hotel Surya Duri, Indonesia. The sample consists of seven people who were given a discourse completion test which questioned them on how they deal with five different scenarios of customer requests and refusals. Results showed that employees perform independent research largely on how to deal with customer requests, but overall do not adequately master how to engage with foreign customer requests and refusals in EFL. This study suggests that concerned parties may benefit training current employees in foreign language communication training.
The Impact of Self-Directed Learning on Student Motivation and Creativity in Electronics Education: A Correlational Study Wahyudi, Riki; Anori, Sartika; Hidayat, Hendra; Irfan, Dedy; Pezo, Erik; Feng, Xiaohan
Journal of Hypermedia & Technology-Enhanced Learning Vol. 2 No. 3 (2024): Journal of Hypermedia & Technology-Enhanced Learning—Tech Harmony
Publisher : Sagamedia Teknologi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58536/j-hytel.v2i3.138

Abstract

The implementation of 21st-century education demands significant shifts in learning approaches, particularly in vocational high schools, where practical skills and creativity are paramount. This study investigates the impact of the Self-Directed Learning (SDL) model on students' motivation and creativity in the subject of electronic circuit applications at SMK Negeri 1 Batipuh. Using a descriptive correlational research design, data were collected from 34 students through validated and reliable questionnaires. The findings reveal that SDL contributes 46.9% to enhancing learning motivation and 39.69% to fostering creativity, indicating its significant influence on both variables. SDL empowers students to take greater control of their learning processes, thereby promoting intrinsic motivation and creative problem-solving abilities. These results align with previous research emphasizing the role of independent learning in improving academic performance and preparing students for the demands of the workforce. The practical implications of this study highlight the importance of optimizing SDL implementation in vocational education, particularly in technical subjects, to develop students' independence and creativity—skills essential for success in the digital era and professional environments. This study contributes to the advancement of effective learning models in vocational education, offering valuable insights for educators and policymakers to enhance the quality of teaching and learning.
PENINGKATAN POWER OTOT TUNGKAI PASCA LATIHAN CIRCUIT TRAINING PADA KLUB SEPAK BOLA USIA 17 TAHUN Wahyudi, Riki; Himawan, Agus; Fajar Hidayatullah, Fajar Hidayatullah; Haryo Mukti Widodo, Haryo Mukti Widodo
JURNAL ILMU KEOLAHRAGAAN Vol 23 No 2 (2024): JURNAL ILMU KEOLAHRAGAAN
Publisher : Fakultas Ilmu Keolahragaan Unimed

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jik.v23i2.65095

Abstract

In a football club, athletes must increase hard and fast kicking exercises, so that what must be considered is explosive power development exercises. One form of exercise that can improve the components of physical condition and leg muscle strength is circuit training. So this study aims to increase leg muscle power which is given the application of circuit training exercises at the Mandala FC Jaddih football club aged 17 years. The method used in this study is a quantitative approach, an experimental research type. With a sample of 15 athletes, the primary data collection process was obtained based on the results of observations in the field by conducting observations at the research location. The research design used was a one-group pretest-posttest design. The research instrument was a Standing Board Jump to measure leg muscle strength using pretest and posttest tests. From the results of the descriptive pretest test, it had a value of 2.34 and a posttest value of 3.76. From the results of the paired sample t-test, it is known that the average on the test and post-test was -1.41800 with a standard deviation of 0.58872. It produces a t-value of -9.329 and a sig (2-tiled) of 0.00. Because the sig value <5% (a) then it can be concluded that there is a difference in the pretest and posttest values. This means that circuit training has a significant effect on increasing leg muscle strength in the Mandala FC Jaddih football club aged 17 years
Penerapan Prinsip-Prinsip Good Corporate Governance Pada Dinas Kependudukan dan Pencatatan Sipil Kota Bukittinggi, Sumatera Barat Wahyudi, Riki; Isriani, Rahmi
Jurnal Ekonomi dan Bisnis Dharma Andalas Vol 27 No 2 (2025): Jurnal Ekonomi dan Bisnis Dharma Andalas
Publisher : Universitas Dharma Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jebd.v27i2.2206

Abstract

This study was conducted to measure performance using the principles of Good Corporate Governance (GCG), which is operationally based on legal foundations or regulations of a sharia nature based on the Qur’an and The Hadith of the Prophet. The research was conducted qualitatively by describing the facts and information available in the field. Data source were obtained from observations and interviews with employees working in the institution. Furthermore, this research was conducted at one of the government office, namely the Population and Civil Registration Office (DUKCAPIL) in Bukittinggi City, West Sumatera. Based on the research results, it shows that each of the GCG Principles has been applied at the DUKCAPIL Office in Bukittinggi. The GCG principles include transparency where the vision, mission and products as well as risk management, have been well implemented and published through the DUKCAPIL office Website. Accountability in the form of sustainable performance managed in accordance with applicable regulations. Responsibility which includes compliance with applicable laws as stated in PBI Regulation No. 11/33/PBI/2009 dated December 7, 2009 concerning the implementation of GCG for each government office, as well as social responsibility to the general public. Independence, meaning managing professionally and without any conflicts of interest while avoiding pressure from any party. Fairness and equality in fulfilling the stakeholders’ rights arising from applicable laws and regulations, and also receiving equal treatment without discrimination in accordance with the applicable laws and regulations. Abstrak Penelitian ini dilakukan dalam rangka mengukur kinerja dengan menggunakan prinsip-prinsip Good Corporate Governance (GCG) yang menjadi operasionalnya tetap berlandaskan dengan dasar-dasar hukum, atau peraturan-peraturan yang sifatnya syari’ah dengan berlandaskan Al-Qur’an dan Hadis Nabi. Penelitian dilakukan secara kualitatif dengan mendeskripsikan fakta-fakta dan keterangan yang ada di lapangan. Sumber data diperoleh dari wawancara kepada pegawai yang bekerja di instansi tersebut. Selanjutnya, penelitian ini dilakukan pada salah satu Lembaga Aparatur Negara yaitu Dinas Kependudukan dan Pencatatan Sipil (DUKCAPIL) Kota Bukittinggi, Sumatera Barat. Berdasarkan hasil penelitian menunjukkan bahwa setiap prinsip-prinsip GCG telah diterapkan pada Dinas DUKCAPIL Kota Bukittinggi. Adapun prinsip-prinsip GCG itu meliputi Keterbukaan (transparency) yakni visi, misi dan produk-produk serta pengelolaan resiko sudah diterapkan dengan baik dan dipublikasikan melalui website Dinas DUKCAPIL Kota Bukittinggi, pertanggungjawaban (accountability) berupa kinerja yang berkesinambungan sudah dikelola sesuai dengan peraturan yang berlaku, tanggung jawab (responsibility) meliputi kepatuhan terhadap perundang-undangan yang berlaku dalam aturan PBI No. 11/33/PBI/2009 tanggal 07 Desember 2009 tentang pelaksanaan Good Corporate Governance (GCG) bagi setiap Dinas yang bersifat kenegaraan serta tanggung jawab sosial kepada masyarakat umum, independen (independency) ini berarti mengelola secara profesional dan tanpa ada benturan kepentingan serta dapat menghindari tekanan kepentingan dari pihak mana pun, kewajaran dan kesetaraan (fairness) dalam memenuhi hal-hak stakeholders yang timbul berdasarkan peraturan perundang-undangan yang berlaku dan juga mendapatkan perlakuan yang setara tanpa diskriminasi sesuai dengan peraturan perundang-undangan yang berlaku
Pembuatan Nanosilikon dari Abu Cangkang Kelapa Sawit Sebagai Katalis untuk Proses Hidrogenasi Air Wahyudi, Riki; Junaidi, Robert; Dewi, Erwana
Innovative: Journal Of Social Science Research Vol. 3 No. 5 (2023): Innovative: Journal of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Hidrogen memberikan kontribusi penting dalam menyediakan energi untuk masa depan. Hidrogen adalah pasokan bahan baku yang melimpah, memiliki tingkat energi H2 286 kJ / mol, dan juga bermanfaat bagi lingkungan. Dengan komposisi SiO2 60%, abu cangkang sawit diketahui mengandung sejumlah besar silika. Penciptaan nanosilikon adalah salah satu kegunaan potensialnya. Penelitian ini bertujuan untuk mensintesis nanosilikon, memurnikannya menggunakan berbagai konsentrasi zat pereduksi, kemudian menggunakan nanosilikon murni untuk menghasilkan hidrogen menggunakan berbagai konsentrasi NaOH. Variasi dalam rasio silika-aluminium pada 1: 0,25, 1: 0,5, 1: 0,8, dan 1: 1 diperlukan untuk isolasi nanosilikon. Konsentrasi NaOH dalam proses produksi hidrogen juga disesuaikan menjadi 2 M, 2,5 M, 3 M, dan 3,5 M. Metodologi yang digunakan dalam penelitian ini meliputi metode presipitasi untuk ekstraksi silika, metode metalotermal untuk isolasi nanosilikon, pemurnian HCl nanosilikon, dan hidrogenasi NaOH. Aluminium dan silika direduksi dalam tungku selama tiga jam pada suhu 850°C untuk menghasilkan nanosilikon. Dengan intensitas 5517 cps dan hasil 93%, rasio silika terhadap aluminium 1: 1 menghasilkan hasil terbaik dalam sintesis nanosilikon. Dengan bantuan nanosilikon yang diperoleh, hidrogen dapat diproduksi dengan kandungan gas hidrogen 421 ppm pada rasio nanoSi: NaOH 3,5 M. Mengingat sifat hidrogen yang menguntungkan secara ekologis dan potensi untuk menggunakan bahan yang tersedia seperti abu cangkang sawit untuk pembuatan nanosilikon, penelitian ini dapat memiliki konsekuensi untuk penyediaan energi di masa depan.
Co-Authors Agus Himawan Anori, Sartika Dedy Irfan Erwana Dewi Fajar Hidayatullah, Fajar Hidayatullah Feng, Xiaohan Haryo Mukti Widodo, Haryo Mukti Widodo Hendra Hidayat Isriani, Rahmi Pezo, Erik Robert Junaidi Wahyu Hidayat Widia Yunita, Widia