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All Journal Educational Management Jurnal Ketahanan Pangan Journal of Community Empowerment
Tri Joko Rahardjo, Tri Joko
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Education Social Sciences

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PENGARUH SUPERVISI AKADEMIK, KOMUNIKASI INTERPERSONAL DAN MOTIVASI KERJA TERHADAP KINERJA GURU DI JEPARA Murniasih, Yeni; Djuniadi, Djuniadi; Rahardjo, Tri Joko
Educational Management Vol 5 No 2 (2016): December 2016
Publisher : Educational Management

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Abstract

Tujuan penelitian ini dimaksudkan untuk mengetahui dan menganalisi : (1) pengaruh langsung supervisi akademik terhadap kinerja guru, (2) pengaruh langsung komunikasi interpersonal terhadap kinerja guru, (3) pengaruh motivasi kerja terhadap kinerja guru, (4) pengaruh supervisi akademik terhadap motivasi kerja, (5) pengaruh komunikasi interpersonal terhadap motivasi kerja, (6) pengaruh tidak langsung supervisi akademik terhadap kinerja guru melalui motivasi kerja, (7) pengaruh tidak langsung komunikasi interpersonal terhadap kinerja guru melalui motivasi kerja. Hasil penelitian menunjukkan bahwa: supervisi akademik berpengaruh terhadap motivasi kerja sebesar 0,336 atau 33,6%, komunikasi interpersonal berpengaruh positif terhadap motivasi kerja sebesar 0,339 atau 33,9%., supervisi akademik berpengaruh terhadap kinerja guru sebesar 0,197 atau 19,7%, komunikasi interpersonal berpengaruh terhadap kinerja guru sebesar 0,196 atau 19,6%dan motivasi kerja berpengaruh terhadap kinerja guru dengan kontribusi sebesar 0,444 atau 44,4%. Supervisi akademik berpengaruh langsung maupun tidak langsung terhadap kinerja guru. Secara tidak langsung supervisi berpengaruh terhadap kinerja guru melalui motivasi sebagai mediasinya dengan kontribusi sebesar 5,6040. Komunikasi interpersonal berpengaruh langsung maupun tidak langsung terhadap kinerja guru melalui motivasi kerja sebagai mediasinya dengan kontribusi sebesar 5.0727
Ekstraksi Lipida Dengan Metode Microwave Assisted Extraction Dari Mikroalga Yang Potensial sebagai Biodiesel Bintari, Yoni Rina; Haryadi, Winarto; Rahardjo, Tri Joko
JU-ke: Jurnal Ketahanan Pangan Vol 2, No 2 (2018): JU-Ke
Publisher : Universitas Islam Malang

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Abstract

Important stages of the production of biodiesel from microalgae is a lipid extraction step. Microwave Assisted Extraction (MAE) is an extraction technique utilizing microwave energy using water solvent. Excellence MAE method is to minimize the use of organic solvents that are toxic, no ecofriendly and unrenewable. Extraction of lipids from microalgae using MAE method leads to a green process to produce bioenergy. This study aims to obtain the optimum extraction conditions of S. platensis lipids and T. chuii using MAE method, the effect of the addition of n-hexane at a post extraction and conversion to biodiesel. The results showed that the optimum of lipid extraction conditions from S. platensis  at microwave power of 560 Watts, the addition of water to the volume of microalgae 6.67 mL/gram dry weight of S. platensis and extraction time of 510 seconds resulting lipid yield of 1.27%. The optimum of lipid extraction condition from T. chuii at 800 Watts of power, the addition of water to the volume of microalgae 8.3 mL/gram dry weight T. chuii and extraction time for 510 seconds resulting lipid yield of 1.25%. Increasing the number of n-hexane at a post extraction from S. platensis effective in adding volume 5 mL, where the addition of 7 mL to 15 mL have no significant increase in yield. Conversion of S. platensis lipids and T. chuii produced a high yield of biodiesel in comparison to the amount of lipid methanol 1:173 to yield 66,7% and 75% respectively.
PENGARUH SUPERVISI AKADEMIK, KOMUNIKASI INTERPERSONAL DAN MOTIVASI KERJA TERHADAP KINERJA GURU DI JEPARA Murniasih, Yeni; Djuniadi, Djuniadi; Rahardjo, Tri Joko
Educational Management Vol 5 No 2 (2016): December 2016
Publisher : Educational Management

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Tujuan penelitian ini dimaksudkan untuk mengetahui dan menganalisi : (1) pengaruh langsung supervisi akademik terhadap kinerja guru, (2) pengaruh langsung komunikasi interpersonal terhadap kinerja guru, (3) pengaruh motivasi kerja terhadap kinerja guru, (4) pengaruh supervisi akademik terhadap motivasi kerja, (5) pengaruh komunikasi interpersonal terhadap motivasi kerja, (6) pengaruh tidak langsung supervisi akademik terhadap kinerja guru melalui motivasi kerja, (7) pengaruh tidak langsung komunikasi interpersonal terhadap kinerja guru melalui motivasi kerja. Hasil penelitian menunjukkan bahwa: supervisi akademik berpengaruh terhadap motivasi kerja sebesar 0,336 atau 33,6%, komunikasi interpersonal berpengaruh positif terhadap motivasi kerja sebesar 0,339 atau 33,9%., supervisi akademik berpengaruh terhadap kinerja guru sebesar 0,197 atau 19,7%, komunikasi interpersonal berpengaruh terhadap kinerja guru sebesar 0,196 atau 19,6%dan motivasi kerja berpengaruh terhadap kinerja guru dengan kontribusi sebesar 0,444 atau 44,4%. Supervisi akademik berpengaruh langsung maupun tidak langsung terhadap kinerja guru. Secara tidak langsung supervisi berpengaruh terhadap kinerja guru melalui motivasi sebagai mediasinya dengan kontribusi sebesar 5,6040. Komunikasi interpersonal berpengaruh langsung maupun tidak langsung terhadap kinerja guru melalui motivasi kerja sebagai mediasinya dengan kontribusi sebesar 5.0727
School-Based Organic Waste Management Innovation through the P4-E Approach to Develop Greenpreneurship Subali, Bambang; Ellianawati, Ellianawati; Rahardjo, Tri Joko; Adhi Negoro, Rido; Listiyanto, Listiyanto; Erna Setyaningsih, Natalia
Journal of Community Empowerment Vol. 5 No. 2 (2025): Journal of Community Empowerment
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jce.v5i2.38631

Abstract

Organic waste management in schools remains a persistent environmental challenge that affects hygiene, air quality, and the overall learning climate. In many schools, organic waste is still burned or buried, reflecting limited ecological literacy and insufficient technical capacity to convert waste into productive resources. At the same time, the integration of entrepreneurship education within science learning remains underdeveloped. This community service programme introduced a school-based organic waste management innovation through the P4-E approach (Training, Practice Implementation, Marketing, and Evaluation) to develop greenpreneurship among science teachers and students. The programme involved 50 participants from the Science Teachers’ Working Group (MGMP IPA) and SMP Negeri 1 Slawi, Tegal Regency. Activities included EM-4 biofermentation compost training, practical compost production and packaging, digital marketing development, and financial management mentoring. Findings indicate substantial improvement in ecological awareness, technical composting skills, and entrepreneurial capacity. Participants demonstrated the ability to produce market-ready compost products and implement digital promotion strategies. The P4-E approach functioned as an integrative empowerment model that linked science education, environmental action, and entrepreneurship development. The programme contributes to advancing SDGs 4, 8, 12, and 13 by institutionalizing sustainable waste management practices within the school context.
Co-Authors Adhi Negoro, Rido Bambang Subali Djuniadi Djuniadi Ellianawati, Ellianawati Erna Setyaningsih, Natalia Listiyanto, Listiyanto Winarto Haryadi Yeni Murniasih, Yeni Yoni Rina Bintari