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All Journal International Journal of Renewable Energy Development BERKALA FISIKA Jurnal Ilmu Dasar POSITRON BERKALA SAINSTEK Jurnal Sains dan Teknologi Kimia P2M STKIP Siliwangi UNEJ e-Proceeding The Journal of Educational Development Warta Ardhia : Jurnal Perhubungan Udara Ilmu Budaya: Jurnal Bahasa, Sastra, Seni, dan Budaya Pendas : Jurnah Ilmiah Pendidikan Dasar Diksa : Jurnal Pendidikan Bahasa dan Sastra Indonesia JURNAL PENDIDIKAN TAMBUSAI JKPK (Jurnal Kimia dan Pendidikan Kimia) JURNAL KAJIAN TEKNIK SIPIL Ghancaran: Jurnal Pendidikan Bahasa dan Sastra Indonesia Logistik English Focus: Journal of English Language Education Jurnal Sisfotek Global Indonesian Journal of Global Health research Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Journal of English Language and Education Jurnal Abdi Masyarakat Indonesia Journal of Education Research Cakrawala: Jurnal Pendidikan Jurnal Pendidikan Teknik dan Vokasional Jurnal Pengabdian Masyarakat Fakultas Teknik: Jurnal Abditek Maritime Park: Journal Of Maritime Technology and Socienty ASEAN Journal of Empowering Community EJOIN : Jurnal Pengabdian Masyarakat Indonesian Chimica Letters Research Horizon
Tri Mulyono
Jurusan Kimia , FMIPA, Universitas Jember, Jember
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering 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 Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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The Relationship of Emoji-Based Self-Assessment, Teacher Role, and Student Perception with Learning Independence Roasih, Roasih; Mulyono, Tri; Munadi, Munadi
Research Horizon Vol. 6 No. 1 (2026): Research Horizon - February 2026
Publisher : LifeSciFi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54518/rh.6.1.2026.969

Abstract

Learning independence is a crucial outcome in modern education, enabling students to take responsibility and initiative in their learning processes. This study examines the relationship between emoji-based self-assessment, teacher role, student perception, and learning independence among elementary school students. Using a quantitative correlational design, data were collected through questionnaires from 160 students familiar with digital learning activities. The instruments measured the four constructs using Likert scales, with reliability confirmed through acceptable Cronbach’s alpha values. The results show that emoji-based self-assessment, teacher role, and student perception are positively and significantly related to learning independence. Emoji-based assessment showed the strongest association, supporting students’ emotional awareness and self-reflection. Teacher guidance and supportive perception of the learning environment further contributed to autonomous learning behaviors. Collectively, these three factors explained 48% of the variance in learning independence. The findings imply that integrating simple, affective digital tools with supportive teaching practices can effectively foster student autonomy. Educators are encouraged to adopt emoji-based reflection methods, strengthen facilitative teacher roles, and cultivate positive classroom climates to promote independent learning, especially in technology-enhanced educational settings.
Peran Job Safety Analysis (JSA) dalam Penerapan Keselamatan dan Kesehatan Kerja (K3) pada Proyek Konstruksi (Literature Review) Danavia, Thoriq Fadhil Muhammad; Mulyono, Tri; Purnomo, Adhi
Jurnal Pendidikan Tambusai Vol. 10 No. 1 (2026)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v10i1.37086

Abstract

Sektor konstruksi memiliki tingkat kecelakaan kerja yang tinggi karena karakteristik pekerjaan yang kompleks dan berisiko. Job Safety Analysis (JSA) merupakan salah satu instrumen penting dalam penerapan keselamatan dan kesehatan kerja (K3) yang berfungsi untuk mengidentifikasi potensi bahaya, menilai tingkat risiko, serta menetapkan langkah pengendalian sebelum pekerjaan dilaksanakan. Penelitian ini bertujuan untuk mengkaji peran Job Safety Analysis (JSA) dalam penerapan K3 pada proyek konstruksi melalui metode literature review. Sumber data diperoleh dari artikel jurnal nasional dan internasional yang relevan dalam lima hingga sepuluh tahun terakhir. Hasil kajian menunjukkan bahwa penerapan JSA secara konsisten dapat menurunkan tingkat kecelakaan kerja, meningkatkan kesadaran keselamatan pekerja, serta memperkuat pengendalian risiko di lapangan. Namun, implementasi JSA masih sering bersifat administratif dan belum optimal. Oleh karena itu, JSA perlu diterapkan secara operasional dan terintegrasi dalam manajemen proyek konstruksi.
Preparation of Cellulose Acetate Membranes via Phase Inversion for Osmometric Molecular Weight Determination of Macromolecules Syarifatul Lailah; Indarti, Dwi; Piluharto, Bambang; Mulyono, Tri; dwi ananda, Tinok
Indonesian Chimica Letters Vol. 5 No. 1 (2026)
Publisher : Department of Chemistry, FMIPA, UNEJ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/icl.v5i1.60009

Abstract

Membrane osmometry is a crucial analytical technique for determining the molecular weight of macromolecules, demanding highly selective semi-permeable membranes to prevent solute leakage. This study investigates the effect of solvent evaporation time (1 to 5 minutes) during the phase inversion fabrication of cellulose acetate (CA) membranes on their physicochemical properties and semi-permeability. The synthesized membranes were evaluated for macroscopic appearance, density, swelling degree, and semi-permeability performance using dextran (100-200 kDa) as a model macromolecule. The results demonstrated that while the macroscopic structures remained uniform, prolonging the evaporation time significantly altered the microscopic morphology. Increasing the evaporation time to 5 minutes maximized the localized polymer concentration, resulting in the highest membrane density (1.55 g/mL) and the lowest swelling degree (17.62%). This highly compact structure provided a superior physical barrier, yielding the most optimal semi-permeability with minimal solute leakage. Furthermore, the application of this 5-minute optimized membrane in a membrane osmometer successfully determined the average molecular weight of dextran to be 122.45 kDa, which perfectly aligns with the theoretical range. The analytical measurement exhibited excellent reproducibility with a coefficient of variation (CV) of 1.8% and an accuracy of approximately 80%. These findings conclusively establish that controlling the evaporation time is a highly effective approach to tailoring the strict selectivity of CA membranes for precise osmometric applications.
The Effect of Testing Chamber on the Response Patterns of an array of Gas Sensor in Sensing Robusta Coffee Aroma from Bangsalsari and Sidomulyo, Jember Asnawati, Asnawati; Siswoyo, Siswoyo; Ningsih, Febiola Silvia; Ainiyah, Qurotul; Zulfikar, Zulfikar; Mulyono, Tri; Muflihah, Yeni Maulidah
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 8, No 1 (2023): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v8i1.68520

Abstract

The gas sensor performance can be improved by optimizing the testing chamber design, including volume, shape, gas inlet/outlet positions, and sensor array. We studied the effect of chamber design on the gas sensor's response patterns characteristics in differentiating Robusta coffee aroma from Sidomulyo, and Bangsalsari, Jember. Hemisphere and cylindrical chambers, with three variations for each model, and a ring chamber, were used as model chambers. Eight types of gas sensors (MQ-135, MQ-136, MQ-2, MQ-3, MQ-6, MQ-7, MQ-8, and MQ-9) were used in the sensor array system to examine the gas sensor instrument performance. The resulting responses were analyzed using the reproducibility, response time, and principal component analysis (PCA) test. The result shows that the reproducibility value for all hemisphere chamber models, cylindrical chamber model-1, and ring chamber indicated an excellent sensor performance (%RSD<20%). Meanwhile, the cylindrical chambers model-2 and 3 resulted in %RSD>20%, indicating the low performance of the gas sensor. Among all variations, hemisphere chamber model-1, a hemisphere chamber with the inlet position lower than the outlet gas position, has the best performance due to the shortest response time, high-intensity signal, and performing ability to distinguish the response patterns characteristics of Robusta coffee aroma from Sidomulyo and Bangsalsari, Jember, Indonesia. In this study, we found that changing the testing chamber design, volume, and inlet/outlet position resulting different gas sensor responses to the coffee aroma. The proposed instrument can distinguish the coffee aroma from a different origin.
Effect of Polyaniline/Graphene Oxide Thickness as A Gas Sensor Material for Robusta Coffee Aroma Tests Mulyono, Tri; Asnawati, Asnawati; Wulandari, Silvia Sri
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 8, No 2 (2023): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v8i2.76177

Abstract

The intricate aroma of coffee arises from a complex blend of volatile compounds, each characterized by distinct attributes and intensities. This study focuses on synthesizing and characterizing the PANI/GO composite. It explores the impact of sensor thickness, rooted in the PaNi/GO composite, on its responsiveness to coffee aroma. Moreover, the findings hold promise as a reference point for sensor development. The PANI/GO composite, doped with HCl, was synthesized using a chemical oxidative polymerization technique in an aqueous solution, employing ammonium persulfate (APS) as the oxidant. Functional group analysis was conducted on the synthesized PANI/GO composite via FTIR (Fourier Transform Infrared). Subsequently, the composite was employed to create a gas sensor with varying thicknesses—0.14, 0.21, 0.28, 0.35, and 0.44 mm. This PANI/GO gas sensor was evaluated using robusta coffee steam from the Sidomulyo region, with resistance measurements performed using a multimeter. The optimization process encompassed sensor conductivity, sensitivity, response time, and repeatability considerations. The most effective sensor thickness emerged as 'Sensor 4,' possessing a 0.35 mm thickness, showcasing a conductivity of 4.69 x 10-9 S/cm, sensitivity of 0.67, response time of 18 seconds, and repeatability of 2.10%. These outcomes hold significant implications for enhancing sensor design and performance, particularly in capturing intricate aromatic profiles such as coffee scents.
Co-Authors Adhi Purnomo Afsun Aulia Nirmala Agung Tjahjo Nugroho Agus Nuryatin Ahmad Turidi Ahmad, Mutiara Garnet Ainiyah, Qurotul Alex Taufiqurrohman Zain Alfaris, Lukman Almu’minin, Achmad Sholikhudin Andriansyah, Alvin Anggarsika, Prabingesti Anisah Ardian Syah Putra Artoto Arkundato Asnawati Asnawati Asnawati Asnawati Asnawati Asnawati Asnawati Asriyani, Wahyu Aulia, Afsun Azisah, Nur Azizah, Lutfiana Badrut Tamam Ibnu Ali Bambang Piluharto Basukiyatno, Basukiyatno Bowo Eko Cahyono Burhan, Asmat Busroni Busroni Bustami Bustami Chairul Paotonan D. Iwan Setiawan Danavia, Thoriq Fadhil Muhammad Dariah, Dariah Dewi, Febby Cynthia Dul Hapid, Saca Dwi Indarti Dwi Novitasari Dzulhaq, Muhammad Iqbal Edy Supriyanto Edy Wibowo Fachry Abda El Rahman Fajrin Nurul Hikmah Gembong Kesuma B Halimatussakdiah Halimatussakdiah Henita Rahmayanti Hutamia, Diah Meirendi Ika Oktavianawati Imron Rosyadi Inayah, Dwi Nita Laeli Intan Puspa Wangi, Intan Puspa Islamintari, Wulan Kholidin Kholidin, Kholidin Kholifa, Mulik Kristi, Maganda Ananda Kusworo Adi Leli Triana Maimunah Noer Aini Maufur Maufur Maulana, Bima Wahyu Misto Misto Misto Moh. Hasan Mulatsih, Tri Munadi Munadi Mursyidah Dwi Hartati, Mursyidah Dwi Musalamah, Sittati Mutiara Garnet R.A Nabilah, Veni Zakiatun Neran - Ningsih, Febiola Silvia Novita Andarini NUR FITRIYAH Nurjanah, Lusi Ike Nursichati, Nursichati Nurul Hanifah Priwantari, Silfira Rizky Purwanto, Burhan Eko Purwanto, Burhan Eko Purwanto Purwo susongko Puspa Wangi, Intan Rahmat Gernowo Ramadhany, Feryna Rizqon Rizqon Roasih, Roasih Rofi’i, Imam Rofi’udin, Rofi’udin Rohmawati, Manis Rokhmawati, Ilma Eka Nur Ropiyah, Ropiyah Rustono - Rustono, Mr S Siswanto Sartikasari, Mindarti Setiawan, Mohamad Bayu Siswanto Siswanto SISWOYO Siswoyo Siswoyo Sri Mulyati Sudarko Suminto A. Sayuti Suriswo Sutisna Sutisna Sutji Muljani Syamsiar, Syamsiar Syamsul Anwar, Syamsul Syarifatul Lailah Tanti Haryati Tinok Dwi Ananda Triningsih Triningsih Umairoh, Umi Umarul Faruq Vivian Karim Ladesi Wafi, Moh. Abduh Wawan Badrianto Wawan Badrianto, Wawan winoto hadi Wiwin Setiani Wulandari, Silvia Sri Wuryanti Handayani Yeni Maulidah Muflihah Yuda Cahyoargo Hariadi Zulfikar