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All Journal Indonesian Journal of Geography Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Infinity Tadris: Jurnal keguruan dan Ilmu Tarbiyah Progresiva : Jurnal Pemikiran dan Pendidikan Islam Jurnal Optimasi Sistem Industri JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Forum Geografi Jurnal Penelitian dan Pembelajaran IPA Indonesian Journal of Science and Technology Journal of Natural Sciences and Mathematics Research Al-Jabar : Jurnal Pendidikan Matematika JIPF (Jurnal Ilmu Pendidikan Fisika) PRISMA Journal of Islamic Architecture Desimal: Jurnal Matematika Jurnal Pertahanan : Media Informasi tentang Kajian dan Strategi Pertahanan yang Mengedepankan Identity, Nasionalism dan Integrity JTAM (Jurnal Teori dan Aplikasi Matematika) International Journal of Supply Chain Management Navigation Physics : Journal of Physics Education Andalasian International Journal of Agricultural and Natural Sciences International Journal of Electronics and Communications Systems International Journal of Hydrological and Environmental for Sustainability Journal of Advanced Sciences and Mathematics Education Online Learning in Educational Research Islamic Journal of Integrated Science Education JIPI (Jurnal IPA dan Pembelajaran IPA) Leuser Journal of Environmental Studies Jurnal Pendidikan IPA Indonesia Jurnal Infinity Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir

Rofiqul Umam

School Of Science And Technology, Kwansei Gakuin University, Japan

Author-ID : 2525555

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Relationship between Organizational Learning and Supply Chain Agility on Organizational Performance: A Quantitative Study in Fashion SMEs Parama Kartika Dewa; Irma Nur Afiah; Rofiqul Umam
Jurnal Optimasi Sistem Industri Vol. 23 No. 1 (2024): Published in July 2024
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v23.n1.p46-60.2024

Supply Chain Agility (SCA) is recognized as a crucial component in fostering organizational agility, offering a competitive and expansionary strategy for businesses. However, the impact of SCA on organizational performance, particularly in the fashion industry, remains underexplored. This study aims to investigate how learning and agility within the supply chain affect the performance of fashion SMEs, providing a comprehensive understanding of these dynamics. Employing a quantitative approach, data were collected through a questionnaire from 180 fashion SMEs in the Special Region of Yogyakarta, with responses obtained from managers in the fashion industry sector. This methodological choice ensures that the insights gathered are both relevant and specific to the targeted industry. A Structural Equation Modeling using Partial Least Squares (SEM-PLS) was utilized to test the hypotheses, focusing on both the direct and indirect effects of internal and external learning dimensions on organizational performance. The findings reveal that both learning and supply chain agility significantly enhance the performance of fashion SMEs, underscoring their importance in boosting organizational effectiveness. Specifically, the study highlights that internal learning processes and external knowledge acquisition are both critical in fostering a more agile and responsive supply chain. These results contribute to the understanding of how SMEs in the fashion sector can leverage learning and agility to improve performance, supporting the development of more effective supply chain strategies. Consequently, the study's hypotheses are validated, providing valuable insights for practitioners and researchers in the field. This research underscores the potential for fashion SMEs to enhance their competitive edge and operational efficiency through strategic learning and agile supply chain management.

Mathematical representation: A bibliometric mapping of the research literature (2013–2022) Putra, Fredi Ganda; Lengkana, Dewi; Sutiarso, Sugeng; Nurhanurawati, Nurhanurawati; Saregar, Antomi; Diani, Rahma; Widyawati, Santi; Suparman, Suparman; Imama, Khoirunnisa; Umam, Rofiqul
Jurnal Infinity Vol 13 No 1 (2024): VOLUME 13, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v13i1.p1-26

Mathematical representation ability is an essential skill for students to understand mathematical concepts. Many studies have been conducted regarding this ability, but it is necessary to map existing research to provide a clearer picture of future research topics. This study aims to provide a bibliometric review of trends using mathematical representation skills in mathematics teaching research. The method in this study is bibliometric analysis, which aims to analyze and classify bibliographic material by presenting representative summaries of the literature in the Scopus database. The search was carried out using the keyword "mathematical representation" and selecting "article title" in the search menu in the Scopus.com database. Perish or Publish (PoP) software analyzes the author's name, number of document citations, document title, year of publication, document source, publisher, and document type. The results showed 99 publications and 357 citations related to mathematical representations, where the number of publications and citations fluctuated. The application of learning models and approaches, computer media, and analysis of mathematical representations is a research trend related to this variable. Therefore, paying attention to mathematical representations in learning mathematics and using effective strategies to improve students' mathematical representation abilities is essential. The findings of this study indicate the need to develop syntax and learning media based on mathematical representations to strengthen students' mathematical abilities.

Physics Learning through Active Learning Based Interactive Conceptual Instructions (ALBICI) to Improve Critical Thinking Ability Diani, Rahma; Irwandani, Irwandani; Al-Hijrah, Al-Hijrah; Yetri, Yetri; Fujiani, Dwi; Hartati, Niken Sri; Umam, Rofiqul
Jurnal Penelitian dan Pembelajaran IPA Vol 5, No 1 (2019): Available Online in May 2019 (Web of Science Indexed)
Publisher : Department of Science Education, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/jppi.v5i1.3469

The process of physics learning in MAN (Islamic senior high school) 2 Bandar Lampung which is still teacher-centered causes students to have low critical thinking skills. One learning model that can be used to overcome this problem is the Active Learning Based Interactive Conceptual Instructions (ALBICI) model which is equipped with Predict, Discuss, Explain, Observe, Discuss, Explore, Explain Tasks (PDEODE*E tasks). The purpose of this study is to determine the effectiveness of the ALBICI model with PDEODE*E tasks in improving students’ critical thinking skills on momentum and impulses subject material. The type of research used is quasi-experimental with 30 students of the class X1 as the experimental class and 30 students of class X2 as the control class. The results of data analysis using t-test at a significance level of 0.05 indicate that the ALBICI model with PDEODE*E tasks iseffective in improving students’ critical thinking skills. Furthermore, theobtainedeffect size of 0.6 indicates that the model's effectiveness falls into the medium category.

Innovative Leadership Management: The Pattern of School Quality Development at SMP Muhammadiyah 2 Inovasi Malang Ridwanulloh, M. Ubaidillah; Huda, Syamsul; Umam, Rofiqul
Progresiva : Jurnal Pemikiran dan Pendidikan Islam Vol. 11 No. 01 (2022): January-June
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/progresiva.v11i01.20742

This study aimed to examine innovative school leadership management in order to improve school quality. Innovation strategies in the aspects of school leadership include the promotion of the work ethic of human resources, implementation of the curriculum, learning methods and media, and school facilities and infrastructure. This research was conducted by direct field observation at SMP Muhammadiyah 2 Inovasi, Malang, thus involving in depth interview and repeated observations. This research applied qualitative approach with descriptive analysis to describe the object of study comprehensively. The results showed that school management based on innovation as a strategy to improve school quality had proven successful. In the end, the school experienced an increase in the number of enrolled students, academic and non-academic achievements. Moreover, the number of graduates who continued to a higher level was doubled.

Mathematical representation: A bibliometric mapping of the research literature (2013–2022) Fredi Ganda Putra; Dewi Lengkana; Sugeng Sutiarso; Nurhanurawati Nurhanurawati; Antomi Saregar; Rahma Diani; Santi Widyawati; Suparman Suparman; Khoirunnisa Imama; Rofiqul Umam
Jurnal Infinity Vol 13 No 1 (2024): VOLUME 13, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v13i1.p1-26

Development and Optimization of Polyethersulfone-Zeolite Mix Matrix Membrane Using Rice Husk Ash for Cadmium Removal in Landfill Leachate Riana, Ulfa; Saiful*, Saiful; Ramli, Muliadi; Rashidi Abdull Manap, Mohd; Umam, Rofiqul
Jurnal IPA & Pembelajaran IPA Vol 9, No 1 (2025): MARCH 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v9i1.42605

Increasing the volume of waste at the final disposal site will contribute to environmental pollution due to the seepage of leachate resulting from the waste decomposition process. Leachate is dangerous and toxic because it contains bacteria, organics or inorganic compounds, and heavy metals like cadmium (Cd). Therefore, methods for reducing Cd levels continue to be developed using a mixed matrix membrane. This research used the silica content from rice husk ash as a precursor for zeolite synthesis. The zeolite is then used as a filler to make politersufon-zeolite mixed matrix membrane (PES-zeolite MMM), which is applied to reduce Cd levels in leachate. The synthesized zeolite is a white solid that is similar to Na-A zeolite. The resulting PES-zeolite MMM showed better mechanical properties than the pure PES membrane. MMM has a tensile strength of 20.31 kgf/mm2, elongation of 105.5%, degree of expansion of 33.89%, porosity of 22.85%, and flux of 118.52 L/m2 hours. The optimum performance of PES-zeolite MMM in adsorption of Cd ions was obtained at a loading percentage of 40% and 30 minutes is the best contact period. The adsorption capacity of Cd ions is 2.27 mg/g. The adsorption isotherm model follows the Langmuir isotherm model with a correlation coefficient (R2) of 0.9152 and Qm of 3.35 mg/g. PES-zeolite MMM 40% can be regenerated using NaCl and HCl solutions, with the maximum adsorption capacity for each solution being 1.99 mg/g and 1.75 mg/g. Applying PES-zeolite MMM in leachate samples reduced Cd and Hg ions levels and several other leachate parameters

Magnetic data analysis using 2D inversion: A case study from Terak Radiogenic Geothermal area, Bangka Island, Indonesia Siregar, Rahmat Nawi; Rohim, Miftahul; Permanasari, Ikah Ning Prasetiowati; Puspitarum, Deska Lismawenning; Umam, Rofiqul
Navigation Physics : Journal of Physics Education Vol 7, No 1 (2025): Navigation Physics : Journal of Physics Education Vol. 7 No. 1 Tahun 2025
Publisher : UNIVERSITAS INDRAPRASTA PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/npjpe.v7i1.4111

The presence of geothermal manifestation such as Terak hot spring near granite massive bodies on Bangka Island raises an importatnt question about the subsurface characteristics of a potential radiogenic system. As traditional geothermal system in Indonesia is well known, research must now focus on understanding the radiogenic system, especially on the subsurface information. This study addresses the local magnetic susceptibility of Terak subsurface hot spring by performing magnetic method. The integration of 2D to 3D magnetic data, field observations and geological information show high susceptibility data (>0.005 SI) which are indicated as granite intrusion which act as the heat source. A central zone of lower susceptibility (<0.005 SI) displays a distinct pattern, interpreted as a fracture zone as the hydrothermal fluid pathways. The identification of recharge area further supports the interpretation of an active hydrothermal system. The result of this study are in good agreement with the geological framework of the region and contribute to a better understanding of radiogenic geothermal systems in Indonesia.

MACRONUTRIENT CONTENT OF DRY LEAVES COMPOST BY VERMICOMPOSTING METHOD Kasam, Kasam; Iresha, Fajri Mulya; Adytama, Alhamdy; Mutolib, Abdul; Umam, Rofiqul; Rasdiana, Felga Zulfia; Rahmat, Ali
Andalasian International Journal of Agriculture and Natural Sciences (AIJANS) Vol. 1 No. 01 (2020)
Publisher : Lembaga Penelitian dan Pengabdian, Universitas Andalas

Waste management is one of the criteria for the evaluation of Green campus and sustainable university. Organic waste takes place in concern because of the domination of waste in university, such as food waste and dry leaves waste. Mismanagement in dry leaves will promote the campus area to look dirty. One method to control the dry leaves waste is the vermicomposting process. The purpose of this research is to evaluate the macronutrient content of dry leaves compost after the vermicomposting process. The research was conducted in the Faculty of Civil engineering and Planning, Universitas Islam Indonesia, Yogyakarta. The vermicompost sample in this study refers to the quality standards according to SNI 19-7030-2004 regarding compost quality standards. The results of vermicompost content value are obtained on day 56 is Phosphor amounting to 0.194%, amounting to 0.129% Potassium, and C / N ratio of 7.73. From the data that has been obtained can be concluded that the results of vermicompost are less effective as organic compost compared to the standards.

Algorithm Modeling in Islamic Geometric Pattern Reconfiguration: Case Study of Cheng Ho Mosque's Islamic Ornament Harnomo, Fajar Ikhwan; Andiyan, Andiyan; Sumarni, Tita Cardiah; Handayani, Tri Wahyu; Wirani, Ayu Puspa; Umam, Rofiqul; Utaberta, Nangkula
Journal of Islamic Architecture Vol 8, No 3 (2025): Journal of Islamic Architecture
Publisher : Department of Architecture, Faculty of Science and Technology, UIN Maliki Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/jia.v8i3.23937

The focus of this study is the issue of reorganizing the preexisting Islamic Geometric Patterns found at the Cheng Ho Mosque via the use of computer modeling techniques. The need for computer modeling research for rearranging geometric patterns at the Cheng Ho Mosque may be attributed to many factors. The objective is to use digitization to streamline the ornamental design process. The study methodology used included the analysis of geometric forms, which were then processed and patterned using Parametric Islamic Geometric Patterns with the assistance of Grasshopper software. This study employs the Islamic octagonal archetype, similar to Chinese geometric ornamentation, using circular geometry with a radius input, as discussed in the preceding article. The inclusion of the division shape serves as a necessary limitation to facilitate the cutting of the recurring patterns. The findings indicate that the algorithmic technique is constructed using a collection of parameter inputs organized into four primary components: octagonal basis geometry, repetition procedure, partition or boundary-shaped surface, and material dimension simulation. However, it also demonstrates varying parameter inputs, posing challenges in organizing them accurately to generate the octagonal form. Visual scripts may effectively depict Islamic geometry in open systems that exhibit parametric adaptability to the fundamental principles of division. During the design processing phase, it is possible to exert control over the pattern proportions in some instances.

Management System of Education: Conceptual Similarity (Integration) between Japanese Learning System and Islamic Learning System in Indonesia Munifah, Munifah; Tsani, Iskandar; Yasin, Muhamad; Tortop, Hasan Said; Palupi, Endah Kinarya; Umam, Rofiqul
Tadris: Jurnal Keguruan dan Ilmu Tarbiyah Vol 4 No 2 (2019): Tadris: Jurnal Keguruan dan Ilmu Tarbiyah
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/tadris.v4i2.4893

The changing times that followed the development of technology made the education system management must be updated to suit the needs and conditions of the environment. In this article, we look for information about the education system in two different countries, namely Japan and Indonesia. The purpose of this research is to find out the integration between the two countries that have different education management systems. The research method used is a descriptive qualitative method. In this research also, the research method is based on the philosophy of postpositivism, using natural conditions or objects. The instrument used to find out information on the education system in each school uses 10 questions and looks for curriculum information data in general in each country. The findings in this study found that, although the management of the education systems of the two countries was slightly different, Indonesian students could compete to continue their tertiary education to developed countries. Besides, the education system in Japan does not make students from Indonesia experience difficulties.

Co-Authors Abd. Rasyid Syamsuri Abdul Mutolib Abdurahman Abdurrahman Adi, Langit Cahya Adyt Anugrah Adytama, Alhamdy Ahmad Said Al Farishi, Bilal Al-Hijrah, Al-Hijrah Ali Rahmat Andika Eko Prasetiyo Andika Eko Prasetiyo, Andika Eko Andiyan Andriana, Bibin B. Anggraini, Atika Annisa Nurhuda Romadhona Antomi Saregar Ardian Asyhari Aziza Anggi Maiyanti Bayu A. Sadjab Belista Gunawan Berlian, Fitra Betta Kurniawan, Betta Bumi, Philosofi Setia Cengiz, Korhan Dewa, Parama Kartika Dewi Lengkana Dixit, Aparna Endah Kinarya Palupi Endah Kinarya Palupi Endah Kinarya Palupi Endah Kinarya Palupi Felga Zulfia Rasdiana Fitria Lestari Fitria Lestari Fredi Ganda Putra Fujiani, Dwi Haerul Anwar Handayani, Tri Wahyu Harnomo, Fajar Ikhwan Hartati, Niken Sri Hartono Hartono Hasan Said Tortop Hasan Said Tortop Hasan Said Tortop Hesti Herliantari Hurien Helmi Husna, Ismalia I Putu Tedy Indrayana Ikah N. P. Permanasari Ilma Ridhona Imama, Khoirunnisa Iqbal, Mochamad Iresha, Fajri Mulya Irma Nur Afiah Irwandani Irwandani Irzaman, Irzaman Iskandar Tsani Iskandar Tsani, Iskandar Iwamony, Steven Jermsittiparsert, Kittisak Kasam Kasam, Kasam Khoirunnisa Imama Khusnul Yakin Kittisak Jermsittiparsert Kurnia, Yogi Laila Puspita Laili, Ummiy Fauziyah Lengkana, Dewi Lusi Anggraini Mada Sanjaya WS Maharani, Fareza Chandri Maulidi, Ikhsan Michalska-Domańska, Marta Misbah Misbah Mochamad Iqbal Muawanah Muawanah Muhamad Syazali Muhamad Yasin Muhammad Nafian Muliadi Ramli Munifah Munifah Munifah Munifah, Munifah Muniroh, Luthfiyatul Nanda Ridki Permana Nangkula Utaberta Nurhanurawati Nurhanurawati Nurhanurawati Nurhanurawati Palupi, Endah Kinarya Panse, Vishal R Parama Kartika Dewa PRAMUDAWARDANI, HANIS puspitarum, deska lismawenning Rahma Diani Rahma Diani, Rahma Rahmad Junaidi, Rahmad Rahmi Ramadhani Rashidi Abdull Manap, Mohd Riana, Ulfa Ridhona, Ilma Ridwanulloh, M. Ubaidillah Rika Rahmawati Rika Rahmawati Rizka Dwi Saputri Rizqi Prastowo Rohim, Miftahul Romadhona, Annisa Nurhuda Saiful*, Saiful Santi Widyawati Saxena, Arti Siregar, Rahmat Nawi Sismanto Sismanto Steven Iwamony Sugeng Sutiarso Sugeng Sutiarso Suharno Suharno Sumarni, Tita Cardiah Suparman Suparman Suparman Suparman Syamsul Huda Syamsul Huda Takahashi, Hirotaka Tortop, Hasan Said Triani Triani Usman, Musawwir Vico Luthfi Ipmawan Vina Apriliani Wahyudianto, Benny Wibowo, Bonno Andri Wirani, Ayu Puspa Yakin, Khusnul Yasin, Muhamad Yetri Hasan Yudha Satya Perkasa Yudha Satya Perkasa, Yudha Satya Zakir Sabara

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