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All Journal JBIO: jurnal biosains (the journal of biosciences) Jurnal Florea Jurnal Biologi Tropis Jurnal Biolokus: Jurnal Penelitian Pendidikan Biologi dan Biologi Martabe : Jurnal Pengabdian Kepada Masyarakat BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains JURNAL PIONIR Spizaetus: Jurnal Biologi dan Pendidikan Biologi Bioscientist : Jurnal Ilmiah Biologi
Tri Harsono
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Education Immunology & microbiology Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Social Sciences Other

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Pengembangan Modul Pencemaran Udara Berbasis SETS (Science, Environment, Technology and Society) Terhadap Kemampuan Berpikir Kritis Siswa Putri Febiola Siregar; Hasruddin; Tri Harsono
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.19457

Abstract

This study aims to develop and examine the effect of a SETS-based (Science, Environment, Technology, and Society) Air Pollution Module in improving students’ critical thinking skills and scientific attitudes f tenth-grade students at SMA Muhammadiyah 1 Medan. The research employed a Research and Development (R&D) method using the ADDIE model, which consists of analysis, design, development, implementation, and evaluation stages. The research instruments included test and non-test instruments, namely a modified BSNP-standard validation sheet and essay questions. The validation results indicate that the module is in the very feasible category, with average scores of 4.68 from material experts, 3.60 from media experts, and 4.00 from language experts. The results of classroom implementation show that the SETS-based module can improve students’ critical thinking skills, with an N-Gain score of 0.51 (moderate category). Furthermore, there is a significant effect of using the module on students’ critical thinking skills. Therefore, the SETS-based air pollution module is suitable for use as teaching material to support meaningful and contextual learning.
Sorus Characteristics of Ferns (Pteridophyta) in Green Open Spaces at Medan State University Yusran E. Ritonga; Dadang Hardiansyah; Tri Harsono
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.10895

Abstract

The green open spaces of Medan State University play a role in biodiversity and ecology. Data collection of fern (Pteridophyta) species in the sporophyte phase and characterization of their sori have not been previously reported, so scientific data collection and presentation are needed. The research method used to obtain data is exploratory. Each fern found was documented and collected for herbarium purposes and detailed sorus observation. Twelve fern species from 7 families were identified: Aspleniaceae, Athyriaceae, Davalliaceae, Nephrolepidaceae, Polypodiaceae, Pteridaceae, and Thelypteridaceae. Of the species found, it was noted that they have terrestrial, epiphytic, and terrestrial/epiphytic life forms. Each species has sori located under the leaf surface, except for Davallia denticulata (Burm.f.) Mett. which is at the leaf tip. The position of the sori is parallel to the leaf veins, between the leaf veins, on the leaf margin, and close to the leaf margin. The sori are brown, light brown, reddish brown, gray, and green. This fern has eight sori, each with an annulus. This sori characteristic differentiates and identifies the type of fern. Pteridophytes in the green open spaces of Medan State University play a role as pioneers, builders of biodiversity and ecosystems, and sources of knowledge, food, and medicine. These findings will serve as a source of scientific knowledge and a basis for characterizing sori elsewhere.
PEMANFAATAN ECENG GONDOK SEBAGAI PAKAN ALTERNATIF UNGGAS MELALUI REKAYASA NUTRISI DAN MEKANISASI PRODUKSI UNTUK PENGENDALIAN DEGRADASI LINGKUNGAN Tri Harsono; Marlinda Nilan Sari Rangkuti; Suci Rahmawati; Adriana Y.D. Lbn Gaol; Rizal Mukra; Widya Arwita; Mustaqim Mustaqim; Widia Ningsih; Imelda Nababan
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 9, No 7 (2026): MARTABE : JURNAL PENGABDIAN MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v9i7.2849-2856

Abstract

This activity was carried out in Medan Marelan, with the Melati Partner Group. The main problems were the dependence on commercial feed reaching 80% of production costs and the high population of water hyacinth covering 10% of the water surface, causing flooding and ecosystem disruption. The objective of this activity was to provide an alternative through the utilization of water hyacinth as chicken feed. The activity was conducted from April to June 2026 through four stages, namely: socialization to increase partner awareness about the potential of water hyacinth; training and technology application which included structured harvesting techniques, the use of a chopper machine, a feed pellet machine, and the production of fermented feed with a formulation of 10 kg of rice bran, 10 kg of corn, 10 kg of concentrate, 10% water hyacinth (equivalent to 3.33 kg), and sufficient EM4 solution; followed by intensive mentoring to ensure feed processing skills were implemented independently; and monitoring. The results showed that 10% fermented water hyacinth feed resulted in a cost per kilogram of feed of Rp5,366, which is cheaper than non-fermented feed at Rp5,912/kg, enabling partners to save costs of Rp18,270 per 33.33 kg of feed, or approximately 9.2% more efficient. Furthermore, an increase in chicken body weight of 0.4 kg indicated that chicken performance was maintained and not significantly different from 100% commercial feed. This activity also supports the Sustainable Development Goals (SDGs). The utilization of 10% fermented water hyacinth provides a highly beneficial dual impact
Co-Authors Adelia Fransiska Adriana Y.D. Lbn Gaol Ansoruddin Ansoruddin Ashar Hasairin Atika Saptaniari Sinaga Dadang Hardiansyah Dewi Astuti Frans Joko Purba Hary Prakasa Hasruddin Imelda Nababan Irwansyah Irwansyah Johannes Manurung Juliwati Putri Batubara Kartika Kartika Khairani Laila Liana Sari Aulya Marlinda Nilan Sari Rangkuti Mustaqim Mustaqim Priska Amanda Putri Febiola Siregar Rifka Febrianti Rizal Mukra Rumondang Rumondang Suci Rahmawati Suriati Suriati Syafrida Br Tambunan Syahmi Edi Ulfa Jamily Tanjung Widia Ningsih Widya Arwita Yusran E. Ritonga Zeini Ardianti Putri