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All Journal Jurnal Sains dan Teknologi Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Bakti Masyarakat Indonesia Journal of Advanced Sciences and Mathematics Education International Journal of Education and Teaching Zone "Indonesian Journal of Devotion and Empowerment (IJDE) "
Sulhadi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Pengaruh Tekanan Spray terhadap Sifat Optik dan Listrik Film Tipis ZnO:Mg dengan Metode Microwave Assisted Spray Pyrolysis Sulhadi; Rofi'ah, Siti Hidayatur; Wahyuni, Siti; Muqoyyanah; Marwoto, Putut
JST (Jurnal Sains dan Teknologi) Vol. 13 No. 2 (2024): July
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jstundiksha.v13i2.81644

Abstract

Fabrikasi film tipis di atas substrat kaca yang homogen dengan sifat optik dan listrik yang unggul masih menjadi tantangan. Oleh sebab itu, pemilihan metode serta parameter fabrikasi menjadi hal yang penting untuk diteliti. Pada penelitian ini, film tipis ZnO doping Mg (ZnO:Mg) difabrikasi pada substrat kaca menggunakan metode Microwave Assisted Spray Pyrolysis dengan memvariasikan tekanan spray nitrogen, yaitu sebesar 1,4; 2,1; 2,8; 3,5; dan 4,2 kg/cm2. Film tipis yang telah difabrikasi kemudian diuji dengan UV-Vis dan IV-meter untuk menganalisis sifat optik dan listriknya. Hasil penelitian menunjukkan bahwa tekanan spray memiliki pengaruh signifikan terhadap karakteristik optik dan listrik dari film tipis ZnO, Dengan peningkatan tekanan spray, film tipis yang dihasilkan cenderung memiliki ketebalan yang lebih seragam, yang berkontribusi pada peningkatan transparansi optik dan penurunan nilai resistivitas listrik. Metode penelitian yang digunakan adalah deskriptif kuantitatif. Penelitian ini bertujuan. Dalam penelitian ini, sampel yang digunakan adalah film tipis ZnO (seng oksida yang didoping dengan magnesium). Tujuan dari penelitian ini adalah untuk mengeksplorasi dan memahami pengaruh variasi tekanan spray pada proses sintesis terhadap sifat optik dan listrik dari film tipis ZnO yang dihasilkan menggunakan metode Microwave Assisted Spray Pyrolysis (MASP). Implikasi penelitian ini adalah penelitian ini memberikan wawasan baru tentang bagaimana parameter proses sintesis dapat diatur untuk mengoptimalkan kinerja material. Temuan ini mengindikasikan bahwa dengan pengaturan tekanan spray yang tepat, film tipis ZnO.
Internalization of Magelang' Local Wisdom in STEM Learning: Analysis of Pottery Making as a Science Learning Resource Trisnowati, Eli; Wiyanto; Subali, Bambang; Sulhadi
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.5181

Abstract

The context in science learning needs to be linked contextually and be interdisciplinary so that learning becomes more meaningful. This research aims to analyze the local wisdom of the people of Magelang Regency in making pottery as a science learning resource containing STEM (Science, Technology, Engineering and Mathematics) on temperature and heat. The subjects of this study were pottery artisans in Kragilan, Donorojo, Mertoyudan, Magelang, Central Java. The research design used is descriptive qualitative with data collection techniques in literature and field studies (interviews and documentation). The data in the research is qualitative, namely the results of interviews and identification of local wisdom in making pottery in Magelang Regency, which can be used as a science learning resource with STEM content. In addition, qualitative data analyses local wisdom in making pottery in science learning resources with STEM content on science material. This research shows that local wisdom in making Magelang pottery, especially roof tiles and braziers, is appropriate to the science learning context. The process of making pottery can be internalized in science learning as a science learning resource containing STEM (Science, Technology, Engineering, and Mathematics) for teaching Temperature and Heat material.
Empowering Al Asror Students Through Agropreneurship to Improve Food Security Widiyanto; Sulhadi; Raharjo, Teguh Hardi; Swastika, Najwa Abel; Utami, Lastri
Indonesian Journal of Devotion and Empowerment Vol. 7 No. 1 (2025): May
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijde.v7i1.26987

Abstract

This community service article discusses efforts to empower students at the Al Asror Islamic Boarding School in Semarang City through the agropreneurship program as a strategy to improve food security. The background of this activity is based on the importance of equipping students with practical skills that are relevant to local potential, while contributing to strengthening food independence in the Islamic boarding school environment and the surrounding community. The purpose of this program is to foster an entrepreneurial spirit in agriculture among students, provide knowledge and technical skills in plant cultivation, and create a sustainable Islamic boarding school-based food security model. The implementation method includes a series of activities such as training, mentoring, direct practice, and facilitation of access to resources and markets. The expected results of this program include increasing the knowledge and skills of students in agropreneurship, the emergence of agricultural business units managed by students, and increasing the availability and access to safe and nutritious food in the Islamic boarding school environment. This empowerment program is expected to be a model for other Islamic boarding schools in developing agropreneurship potential to support national food security.
PENGEMBANGAN DAN UJI COBA ALAT PRAKTIKUM DIGITAL INOVATIF BERBASIS SMARTPHONE Wahyuni, Siti; Hardyanto, Wahyu; Darsono, Teguh; Sulhadi; Akhlis, Isa
Jurnal Bakti Masyarakat Indonesia Vol. 8 No. 2 (2025): Jurnal Bakti Masyarakat Indonesia
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jbmi.v8i2.35280

Abstract

Adanya tuntutan pelibatan teknologi dalam proses pembelajaran menjadi tantangan yang harus dihadapi guru. Penyelidikan ilmiah dalam pembelajaran fisika menjadi sangat penting, namun sayangnya tidak semua sekolah memiliki fasilitas laboratorium yang memadai. Agar pembelajaran tetap terlaksana dengan baik, keadaan tersebut memaksa guru untuk aktif dan kreatif menciptakan praktikum yang inovatif dengan sumber daya yang ada. Keadaan ini dapat diatasi dengan praktikum digital, yang salah satunya dapat dilakukan dengan memanfaatkan smartphone masing-masing peserta didik. Praktikum fisika dengan smartphone dapat menjadi inovasi praktikum digital karena guru dapat merancang sendiri jenis percobaannya. Kegiatan pengabdian kepada masyarakat ini dilaksanakan dengan metode Community Based Participatory Research (CBPR) pada MGMP Fisika SMA/MA Kabupaten Semarang Jawa Tengah. Kegiatan berupa pelatihan terkait pengenalan set alat praktikum digital, membaca data, mengolah, memvisualisasikan dalam grafik, dan menginterpretasikannya. Aplikasi digital yang digunakan adalah Arduino Science Journal yang dapat dioperasikan dengan memanfaatkan sensor yang telah tersedia pada smartphone android. Alat praktikum yang dihasilkan berupa satu set alat papan luncur yang dapat divariasikan sudut kemiringannya, dilengkapi dengan alat peluncur berupa mobil mainan yang dimodifikasi dengan holder HP. Alat ini dapat digunakan untuk mengukur percepatan, kemudian data digital dapat diolah ke dalam besaran fisis lain, seperti kecepatan dan posisi setiap saat. Pada akhir kegiatan, set alat praktikum disumbangkan kepada MGMP sebagai percontohan agar dapat diadopsi oleh pihak sekolah untuk memenuhi kebutuhan fasilitas laboratorium.
Mini Greenhouse: Efforts to Improve Environmentally Friendly Agricultural Skills for Students of Pondok Pesantren Al Asror Mukhibad, Hasan; Widiyanto; Kusumantoro; Nurkhin, Ahmad; Anisykurlillah, Indah; Wahyuningrum, Indah Fajarini Sri; Raharjo, Teguh Hardi; Sulhadi
Indonesian Journal of Devotion and Empowerment Vol. 1 No. 1 (2025): Special Issue
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ijde.v1i1.38100

Abstract

Pondok pesantren are increasingly paying attention to environmental issues, sustainability, and the promotion of the Sustainable Development Goals (SDGs), as well as striving to provide life skills for students (Santri) through training and self-development activities. This article explains the impact of utilizing a mini greenhouse to improve students’ agricultural skills through a community service program at Pondok Pesantren Al Asror Semarang, targeting 15 students. The activities were carried out over five months (May to September 2025) in the form of training and assistance in using the mini greenhouse. The training introduced the mini greenhouse and its benefits, after which the students worked together to prepare and build it within the pondok pesantren environment. The next activities included plant cultivation, starting from seed sowing, planting, and caring for the plants until harvest time, under the guidance and supervision of the community service team. The students were highly enthusiastic and motivated to make use of the mini greenhouse, and they received support from the pondok pesantren leaders to enhance their life skills. The students then continued using the mini greenhouse for organic vegetable cultivation, starting from sowing to harvest time.
Implementation of problem-based learning and the challenges in science education: A systematic literature review Faiz Mudhofir; Edy Cahyono; Sigit Saptono; Sulhadi
Journal of Advanced Sciences and Mathematics Education Vol. 6 No. 1 (2026): Journal of Advanced Sciences and Mathematics Education
Publisher : CV. FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jasme.v6i1.1020

Abstract

Background: Problem-Based Learning, PBL, is a student-centered approach in science education that promotes conceptual understanding and higher-order thinking by engaging learners with authentic contextual problems. Aims: This systematic review synthesizes how PBL is implemented in science education, what outcomes are most frequently reported, and what barriers commonly hinder its adoption. Method: A PRISMA-guided systematic literature review was conducted using Scopus. Searches employed the terms “problem-based learning,” “science education,” and “science learning.” Eligible studies were empirical journal articles and conference proceedings published from 2017 to August 2025, written in English, and involving participants from elementary school through higher education. Of 388 records identified, 53 studies met the inclusion criteria and were analyzed according to publication trends, research designs, implementation strategies, targeted outcomes, and reported constraints. Results: Across educational levels, PBL was consistently associated with cognitive gains, especially in critical thinking, problem solving, and higher-order thinking skills. The reviewed evidence also indicated affective benefits, including stronger scientific attitudes, improved learning motivation, and enhanced collaboration. Nevertheless, recurring challenges emerged, such as limited instructional time, demanding assessment processes, curriculum coverage pressures, uneven teacher readiness, unequal participation in group work, and gaps in access to learning resources and technology. Conclusion: PBL offers clear promise for improving both cognitive and affective dimensions of science learning, yet its success depends on well-designed contextual problems, adequate pedagogical support, and alignment with learners’ readiness. Strengthening teacher capacity and refining assessment practices are essential to reduce persistent implementation barriers.
Improving Undergraduate Science Education Students’ Research Skills through STEM Learning Integrated with the Research Skill Development (RSD) Framework: A Quasi-Experimental Study Trisnowati, Eli; Wiyanto; Subali, Bambang; Sulhadi
International Journal of Education and Teaching Zone Vol. 5 No. 1 (2026): February 2026 Edition
Publisher : Yayasan Nurul Yakin Bunga Tanjung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57092/ijetz.v5i1.773

Abstract

Research skills are an important competency in higher education, but various findings indicate that these skills are still developing unevenly among students. This study aims to examine the relationship between STEM-based science learning integrated with the Research Skill Development (RSD) framework and students' research skill achievement compared to conventional learning. The study used a quantitative approach with a quasi-experimental pretest–posttest control-group design involving 120 third-semester students in the science education study program at a university, who were divided into two experimental and two control classes. The experimental group received STEM learning structured according to the RSD stages and supported by a structured assessment rubric. In contrast, the control group followed the usual lecture-and-assignment-based learning practices. Data were collected using a research skills test developed in line with the RSD framework, then analyzed descriptively and inferentially using the Mann–Whitney U test. The pretest results showed no significant difference between the two groups (p = 0.445). In contrast, significant differences were found in posttest 1 (p = 0.030), posttest 2 (p = 0.010), and posttest 3 (p = 0.011), with the experimental group's average score increasing from 39.7 to 59.1 and the control group's from 37.1 to 54.7. These findings suggest a short-term performance advantage associated with STEM–RSD implementation, depending on the cohort and the instrument used.
Co-Authors Ahmad Nurkhin Bambang Subali Darsono, Teguh Edy Cahyono Eli Trisnowati Faiz Mudhofir Hasan Mukhibad Indah Anisykurlillah Indah Fajarini Sri Wahyuningrum, Indah Fajarini Sri Isa Akhlis Kusumantoro Muqoyyanah Putut Marwoto Raharjo, Teguh Hardi Rofi'ah, Siti Hidayatur Sigit Saptono Siti Wahyuni Swastika, Najwa Abel Utami, Lastri Wahyu Hardyanto Widiyanto Wiyanto