27 hasil untuk "Irvan Irvan"

The Effect of Training Method and Arm Length on Spike Back Attack Ability in Junior Athletes of Bina Taruna Semarang Volleyball Club

Agus Sutriawan; Irvan Irvan

Juara, Vol. 8 No. 2 · 2023 · Indonesia · DOAJ

This study aims to determine; 1) is there a contribution between arm strength and the The purpose of this study is to find out how well high school students in 2023 can throw shot put. This research is a type of descriptive research using a survey approach. The data collection method uses a shot…

Differences in Increasing The Ability of Reasoning in Problem Based Learning Model and Computer-Based Group Investigation

Agus Syafrizal; Edi Syahputra; Irvan Irvan

Malikussaleh Journal of Mathematics Learning, Vol. 3 No. 2 · 2020 · Inggris · DOAJ

This study was conducted to determine whether there were significant differences between students 'reasoning abilities taught using the PBL model and with the Computer Multimedia Assisted GI, and to determine whether or not there was an influence of interaction between learning models and students'…

Sepsis dan Tata Laksana Berdasar Guideline Terbaru

Irvan Irvan; Febyan Febyan; Suparto Suparto

JAI (Jurnal Anestesiologi Indonesia), Vol. 10 No. 1 · 2018 · Inggris · DOAJ

Istilah Sepsis menurut konsensus terbaru adalah keadaan disfungsi organ yang mengancam jiwa yang disebabkan karena disregulasi respon tubuh terhadap infeksi. Penggunaan kriteria SIRS untuk mengidentifikasi sepsis dianggap tidak membantu lagi. Kriteria SIRS tidak menggambarkan adanya respon…

Improvement Of Student Squash Ability Through The Game Situation Method

Irvan Irvan; Muhammad Akbar Syafruddin; Agus Sutriawan

Juara, Vol. 8 No. 2 · 2023 · Indonesia · DOAJ

This research will use experimental research methods. In investigating the relationship between cause and effect, this experimental research only uses the use of a study group, not a control group. Researchers used a research method known as the One Group Pretest-Posttest method. Then given…

Problem Based Learning, Discovery Learning, and Open Ended Models: An experiment On Mathematical Problem Solving Ability

Dian Fitria Tanjung; Edi Syahputra; Irvan Irvan

JTAM (Jurnal Teori dan Aplikasi Matematika), Vol. 4 No. 1 · 2020 · Indonesia · DOAJ

This research is to look at the effect of problem-based learning, discovery learning, and open-ended models on the mathematical problem-solving abilities of students. The type of research is a quasi-experiment with a three treatment counterbalanced design research design. The instruments used: (1)…

Manajemen Pengelolaan Sampah Kota Berdasarkan Konsep Zero Waste: Studi Literatur

Muhammad Nizar; Erman Munir; Edi Munawar dkk.

Jurnal Serambi Engineering, Vol. 1 No. 2 · 2018 · Indonesia · DOAJ

Pengelolaan sampah perkotaan di Indonesia masih menghadapi banyak kendala terutama dalam hal keberadaan Tempat Pembuangan Akhir (TPA) atau landfill. Hanya 60-70% sampah yang dapat terangkut dan dibuang ke TPA, sementara sisanya tersebar diberbagai tempat. Padahal sampah yang dibuang ke TPA…

Development of HOTS and TPACK Based Learning Media on Parabola Material

Sugeng Adi Pamungkas; Ellis Mardiana Panggabean; Irvan Irvan

Numerical: Jurnal Matematika dan Pendidikan Matematika, Vol. 8 No. 1 · 2024 · Indonesia · DOAJ

This research aims to: 1) find out how HOTS and TPACK-based learning tools work on parabola material; 2) find out how effective the HOTS and TPACK-based learning tools are in the parabolic equation material being developed; 3) find out how students respond to the application of HOTS and TPACK-based…

Implementation of the jigsaw cooperative learning model to optimize learning outcomes in fundamental volleyball techniques

Irvan Irvan; Peby Gunarto; I Komang Sukarata Adnyana

Sriwijaya Journal of Sport, Vol. 5 No. 1 · 2025 · Indonesia · DOAJ

Research Problems: Low mastery of basic volleyball techniques in physical education classes—caused by using conventional learning methods that tend to be passive—is a major problem, requiring the application of innovative and participatory learning models such as the Cooperative Type Jigsaw to…

Radiographic Outcomes of Robot-Assisted Versus Conventional Total Knee Arthroplasty

Riantho, Albert; Butarbutar, John Christian Parsaoran; Fidiasrianto, Kevin dkk.

JB JS Open Access · 2023 · Inggris · PubMed Central

Total knee arthroplasty (TKA) has long been considered the definitive treatment for knee osteoarthritis. Although tremendous improvements have been made in surgical techniques for conventional TKA, a substantial dissatisfaction rate among patients has persisted because of moderate-to-severe pain…

Case Report on Painful Patellar Crepitation Following a Knee Replacement with Preserved Patella

John Christian Parsaoran Butarbutar; Joshua Edward Hananto; Irvan Irvan

Majalah Kedokteran Bandung, Vol. 55 No. 1 · 2023 · Indonesia · DOAJ

Patellar clunk crepitation is a well-known complication following knee replacement surgery and is associated with posterior stabilized knee replacement surgery and surgical technique. Currently, patellar clunk or crepitation management following knee replacement surgery with preserved patella…

Rapid Determination of Microbial Quinones using Supercritical CO2 Extraction

Muhammad Faisal; Irvan Irvan; Yoichi Atsuta dkk.

Jurnal Rekayasa Kimia & Lingkungan, Vol. 5 No. 1 · 2006 · Inggris · DOAJ

The supercritical CO2 extraction of microbial quinones from activated sludge samples obtained from various activated sludge was investigated and compared to the conventional method using organic solvent extraction. The extraction was carried out in a supercritical fluid extraction (SFE) system in…

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DIGITAL MATH COMIC DEVELOPMENT BASED ON THINKING TO INCREASE STUDENTS' INTEREST IN LEARNING

Nurhasanah Nurhasanah; Irvan Irvan; Marah Doly Nasution dkk.

Prima: Jurnal Pendidikan Matematika, Vol. 9 No. 2 · 2025 · Indonesia · DOAJ

Digital Math Comic based on the Experience, Interaction, Communication, Reflection (MIKIR) approach is deliberately developed into a learning media needed in mathematics learning activities, especially on the material of Arithmetic Rows and Rows. So the author aims this research to find out the…

SIMPLIFIED FORMULAS FOR SOME BESSEL FUNCTIONS AND THEIR APPLICATIONS IN EXTENDED SURFACE HEAT TRANSFER

Irvan Irvan; Zahedi Zahedi; Anjar Agus dkk.

Barekeng, Vol. 16 No. 2 · 2022 · Inggris · DOAJ Scopus

Bessel functions find many applications in Physics and Engineering fields. Some of these applications are in the analysis of extended surface heat transfer where the cross-sections vary. Tables of various kinds of Bessel functions are available in most handbooks of mathematics. However, the use of…

Optimizing low-crude protein diets with essential oils and sodium butyrate to maintain productive performance and improve intestinal integrity in 58- to 69-wk-old laying hens

Irvan Irvan; Muhlisin Muhlisin; Chusnul Hanim dkk.

Poultry Science, Vol. 105 No. 12 · 2026 · Inggris · DOAJ Scopus

This study evaluated the effects of supplementation with saponified essential oils (EOs) and sodium butyrate (SB) on production performance, egg quality, gastrointestinal organ characteristics, jejunal morphology, intestinal barrier function, inflammatory responses, and antioxidant-related gene…

Broodstock development, induced spawning and larval rearing of the bilih, Mystacoleucus padangensis (Bleeker, 1852), a vulnerable species, and its potential as a new aquaculture candidate

Syandri, Hafrijal; Azrita, Azrita; Thamrin, Rinold dkk.

F1000Res · 2023 · Inggris · PubMed Central

Background: Mystacoleucus padangensis living in Lake Singkarak, Indonesia, has high potential market demand but is threatened by overfishing and has not been successfully cultured. This study describes the first broodstock development, induced breeding, and larval rearing of M. padangensis…

The effect of oil palm empty fruit bunch (EFB) biochar addition on biogas production from palm oil mill effluent (POME)

Irvan Irvan; Trisakti Bambang; Sidabutar Rivaldi dkk.

E3S Web of Conferences, Vol. 721 · 2026 · Prancis · DOAJ

Biogas production from palm oil mill effluent (POME) represents a promising renewable energy solution, yet high chemical oxygen demand (COD) poses significant challenges. This study investigated biochar derived from palm empty fruit bunch (EFB) as an additive to enhance anaerobic digestion…

Gasification of Coffee Parchment as Potential Method for Coffee Agro-Industry Waste Utilization

Zahra Fona; Adi Setiawan; Irvan Irvan dkk.

Jurnal Rekayasa Kimia & Lingkungan, Vol. 18 No. 2 · 2023 · Inggris · DOAJ

Coffee parchment is a lignocellulosic waste material which has a potential to transform into synthesis gas. This research aims to study the feasibility of coffee parchment conversion under downdraft gasification with ‘auto-heating’ supply method. The temperature profile in each zone of the reactor…

Bio-oil hydrodeoxygenation over acid activated-zeolite with different Si/Al ratio

Saharman Gea; Irvan Irvan; Karna Wijaya dkk.

Biofuel Research Journal, Vol. 9 No. 2 · 2022 · Inggris · DOAJ Scopus

Bio-oil includes significant levels of oxygenate molecules, which might induce component instability and reduce its physicochemical qualities. To counteract this, the component must undergo a hydrodeoxygenation (HDO) reaction. Due to the presence of acidic active sites, zeolites have been shown to…

Improving Text Summarization Quality by Combining T5-Based Models and Convolutional Seq2Seq Models

Arif Ridho Lubis; Habibi Ramdani Safitri; Irvan Irvan dkk.

Journal of Applied Engineering and Technological Science, Vol. 5 No. 1 · 2023 · Inggris · DOAJ Scopus

In the natural language processing field, there are several sub-fields that are very closely related to information retrieval, such as the automatic text summarization sub-field. obtained from the convolutional T5 and Seq2Seq models in summarizing text on hugging faces found features that can…