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All Journal Reaktor Abdimas PIONIR: Jurnal Pendidikan Indonesian Journal of Chemistry CARADDE: Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Cendekia Eksakta Edunesia : jurnal Ilmiah Pendidikan Dedikasi: Jurnal Pengabdian kepada Masyarakat Journal of Educational Sciences Journal of Innovation and Research in Primary Education Bookchapter Alam Universitas Negeri Semarang Journal of Community Empowerment Jurnal Bahan Alam Terbarukan
Harianingsih, Harianingsih
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Surface Treatment of Wood Polymer Composites from Straw Fiber Using Argon Plasma Jet Injection: Enhancing Adhesion Properties Harianingsih, Harianingsih; Astuti, Widi; Widyastuti, Catur Rini; Wulandari, Retno; Puzi, Asmarani Ahmad
Jurnal Bahan Alam Terbarukan Vol. 13 No. 2 (2024): December 2024 [Nationally Accredited Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v13i2.5572

Abstract

The increasing demand for environmentally friendly materials has driven research into biodegradable composites. Straw fiber, an abundant agricultural byproduct, remains underutilized as a filler material in Wood Polymer Composites (WPC). To enhance its application potential, this study investigates the surface treatment of straw fiber/polyvinyl alcohol (PVA) matrix composites using a plasma jet with argon injection. The use of cold plasma as a treatment method is expected to improve the interfacial bonding between the straw fiber and the PVA matrix, thereby enhancing composite properties. The research employs several analytical methods, including morphological analysis of straw fibers before and after plasma jet treatment using Scanning Electron Microscopy (SEM), contact angle measurements, and emission intensity analysis via Optical Emission Spectroscopy (OES). The results reveal significant morphological changes in the straw fiber surface after plasma jet treatment, characterized by increased roughness and improved adhesion with the PVA matrix. The emission intensity analysis identifies peak reactive argon species at λ = 698.223 nm to λ = 778.398 nm, N₂⁺ at λ = 386.685 nm to λ = 445.289 nm, N₂ at λ = 324.768 nm to λ = 377.983 nm, and atomic oxygen spectral triplets at λ = 780.341 nm to λ = 830.867 nm. Moreover, the decrease in the contact angle from 90° to 57° over 60 minutes demonstrates a transition in the composite's surface properties from hydrophobic to hydrophilic. These findings highlight the effectiveness of plasma jet treatment in modifying straw fiber surfaces for improved composite performance, paving the way for broader applications of biodegradable WPC materials.
Pelatihan Pembuatan Alat Elektrolisis Sederhana untuk Pengolahan Air Hujan Harianingsih, Harianingsih; Sri Handayani; Maharani Kusumaningrum; Vera Noviana Sulistyawan; Indra Sakti Pangestu; Isnina Noor Ubay
CARADDE: Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 3 (2024): April
Publisher : Ilin Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31960/caradde.v6i3.2065

Abstract

Air memiliki peran yang sangat penting dalam kehidupan manusia karena menjadi pijakan utama bagi kelangsungan hidup. Pengabdian ini bertujuan sebagai upaya kolaboratif dengan masyarakat pesisir di Desa Gemulak Sayung, Kabupaten Demak, Jawa Tengah untuk memperoleh pasokan air minum yang layak dari pengolahan air hujan dengan menerapkan iptek elektrolisis. Tahapan pelaksanaan pengabdian yang dilakukan melalui tiga tahapan, observasi, pelatihan pembuatan alat elektrolisis sederhana, monitoring dan evaluasi. Pada observasi diperoleh permasalahan yaitu ketersediaan air layak konsumsi yang masih minim. Pelaksanaan pelatihan pembuatan alat elektrolisis yang dapat diterapkan di rumah masing-masing. Monitoring dan evaluasi dilakukan untuk keberlanjutan dari pelaksanaan pengabdian. Hasil pengabdian diperoleh bahwa peserta memperoleh pengetahuan tentang manfaat air hujan dan teknologi sederhana pengolahannya menggunakan elektrolisis sehingga dapat diproduksi air hasil elektrolisis berupa air alkali dan air asam. Sebesar 95% peserta menginginkan agar proses pengabdian ini dapat dilanjutkan karena bermanfaat untuk masyarakat Desa Gemulak, Sayung, Demak.
Educaplay as an Interactive Digital Media for Students' HOTS Thinking on Living Things Material Nur'aeni, Amellia Putri; Harianingsih, Harianingsih; Avrilianda, Decky; Ellianawati, Ellianawati
Edunesia : Jurnal Ilmiah Pendidikan Vol. 6 No. 3 (2025)
Publisher : Research, Training and Philanthropy Institution Natural Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51276/edu.v6i3.1309

Abstract

This study aims to determine the effectiveness of Educaplay interactive digital media in improving the Higher Order Thinking Skills of grade II elementary school students on the subject of living things. The study used a quantitative approach with a quasi-experimental design of the One-Group Pretest-Posttest Design type. The subjects of the study were 20 grade II students of SDN Karawang Kulon II. The instruments used were multiple-choice HOTS tests and descriptions based on the revised Bloom's taxonomy, with indicators of analyzing, evaluating, and creating. The results showed that there was a significant increase in the posttest score compared to the pretest, with an average increase of 41.1 points and a significance value of 0.001 (p <0.05). The N-Gain value was in the medium to high category (average 0.6867). In addition, the analysis of the quality of the questions showed that most of the questions were difficult and had good discriminating power. These findings indicate that Educaplay is effective in developing students' HOTS skills through interactive, contextual, and fun learning. The implications of this Research encourage teachers to utilize digital media as a learning tool that is not only interesting but also able to stimulate high-level cognitive activities from the elementary education level.
Literature Review: Trends in the Development of Natural and Social Science Learner Worksheets in Primary Schools between 2019-2025 Feronika, Shela Intan; Harianingsih, Harianingsih; Subali, Bambang; Ellianawati, Ellianawati
Edunesia : Jurnal Ilmiah Pendidikan Vol. 6 No. 3 (2025)
Publisher : Research, Training and Philanthropy Institution Natural Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51276/edu.v6i3.1328

Abstract

This study aims to analyze trends in the development of student worksheets in natural and social science learning at the primary school level during the 2019–2025 period. The method used is a literature review with a PRISMA approach applied to 25 selected articles out of 998 obtained through Publish or Perish. The PRISMA approach was implemented to transparently and systematically screen and select relevant articles through a flow diagram consisting of four stages: identification, screening, eligibility assessment, and inclusion. The results show that the most dominant learning model used in the development of natural and social science student worksheets is inquiry, followed by discovery learning, STEM, CTL, and the scientific approach. The developed worksheets have been proven effective in improving learning outcomes, conceptual understanding, critical thinking skills, and scientific literacy, as well as students’ motivation and learning independence. The implications of this study are significant for educators and material developers in designing innovative student worksheets that align with students’ needs, are consistent with the Merdeka Curriculum, and are relevant to the demands of 21st-century learning.
Co-Authors Afidah, Asti Dwi Afifah Ritmadanti Akhilia, Tudrika Atik Yuliyani Bahlawan, Zuhriyan Ash Shiddieqy Bambang Subali Bambang Sugiyarto, Bambang Bunyamin Bunyamin Catur Rini Widyastuti, Catur Rini Damayanti, Astrilia - Decky Avrilianda Dewi, Kiky Rosita Dewi, Yasinda Verrel Dinara Shinka Dillah, Shohib Qomad Durroh, Lum’Atud Eka Titi Andaryani Ellianawati, Ellianawati Erliana, Savira Rinda Feronika, Shela Intan Ginanjar, Bagus Handayani, Sri Hidayati, Wiwik Imani, Nadya Alfa Cahaya Indra Sakti Pangestu Indriawan, Ari Nur Dwi Isnina Noor Ubay Kristanto, Virgiawan Adi Kristi, Silvia Yolanda Kristianto, Virgiawan Adi Kurniasari, Winda Maharani Kusumaningrum Muhaimin, Yusril Yahya Mu’arifuddin, Mu’arifuddin Nelson Saksono Nuni Widiarti Nur Qudus Nur'aeni, Amellia Putri Pangestu, Indra Sakti Prasetyo, Ridwan Anung Prima Astuti Handayani Putra, Muhammad Rizky Fahrizal Puzi, Asmarani Ahmad Retno Wulandari Riski, Via Savira Rinda Erliana Setiadi, Rizki Siswoyo, Mohammad Pujo Sokmawan, Muhammad Rafi Hanairo Sri Handayani SRI RAHAYU Sri Sumartiningsih SRI WARDANI Sudarmin Sudarmin Sulistyawan, Vera Noviana Sumbali, Bambang Tri Joko Raharjo Ubay, Isnina Noor Vera Noviana Sulistyawan Wara Dyah Pita Rengga Widi Astuti Widiati, Nuni Yeri Sutopo Zakaria, Zainal