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All Journal Journal of Tropical Soils Jurnal Sains Dasar Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Penelitian Tanaman Industri Planta Tropika Jurnal Ilmiah Pangabdhi specta: Journal of Photography, Arts, and Media Jurnal Profesi Insinyur Universitas Lampung Innovative: Journal Of Social Science Research Journal of Innovative and Creativity Jurnal Multidisiplin Indonesia Jurnal Investasi Islam
Tohari Tohari
Fakultas Pertanian UGM Kampus Bulak Sumur, Yogyakarta
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Veterinary Other

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Karakterisasi berbagai Jenis Bahan Lapisan Kedap, Ketebalan dan Nisbah Bentonit dengan Pasir: Konsep Dasar Pengelolaan Lahan Pasir Pantai Saparso, Saparso; Tohari, Tohari; Shiddieq, Dja’far; Setiadi, Bambang
JOURNAL OF TROPICAL SOILS Vol. 14 No. 2: May 2009
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2009.v14i2.167-176

Abstract

Characterization of Various Kinds, Thickness and Bentonite Sand Ratio as Hardplain Materials: a Basic Concept for Coastal Sandy Land Management (Saparso, Tohari, D. Shiddieq, and B. Setiadi): Coastal sandy land development  faces  the sand characteristics, the lower holding water capacity and the larger nutrient leaching due to heavier rainfall in the tropics, soil porosity  and without soil layering so it need alternative technology  for  more efficient  harvesting water resources in  supporting  the crop growing. The  laboratory research studied the characteristic of various kind, thickness and ratio of hardplain material was carried out at Laboratory of Agronomy of UNSOED,  Soil Mechanic of GMU.  the SEM and X-RD of  Lemigas Jakarta. Permeability determination by Falling Head which is appropriate measurment  was not significantly different with ELE28-290 permeameter. Permeability of Kokap clay soil and  Nanggulan bentonite were larger than the  rainfall intensity in coastal sandy land.  The Sentolo Vertisol content 68% calcium smectite had permeability 3,7 mm.day-1.  Bentonite permeability were not significantly different due to more than 80% clay mineral composition. Therefore the permeability of natrium bentonite like as  BPIB and  BLUB namely  1.4 x 10-2 and 10-2  mm day-1 were lower than the calcium bentonite like as RMBL and BLBK  permeability namely  4.3 x 10-2  and  2.43 x 10-2 mm day-1. Permeability of 0.5 cm thickness bentonite was not  significantly different than 1.0 dan 1.5 cm thickness and those had very low permeability. Bentonite sand mixture 15 and 20 percent produced bentonite sand agregate  that  had  mesopores by which allowing the drainage and available soil water so that those had water permeability 13.7 dan  10.3 mm day-1 respectively.  The mixture 30-100%  had not significantly different permeability namely 7.3 x 10-2  up to 1.4 10-2 mm day-1. The combination of tickness and the low ratio of  bentonite sand mixutre need to be determined to produce favourable environment in supporting  the plant growth.
Pengaruh Promosi Penjualan Terhadap Kepuasan Pelanggan pada PT. Sarana Tani Indonesia Makmur Hidayat, Arif; Rustomo, Rustomo; Tohari, Tohari
Innovative: Journal Of Social Science Research Vol. 4 No. 1 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i1.7615

Abstract

Penelitian ini bertujuan untuk menganalisis promosi penjualan di PT Sarana Tani Indonesia Makmur dan mengukur pengaruhnya terhadap kepuasan pelanggan. Dengan metode kuantitatif dan sampel 60 pelanggan, penelitian ini menemukan bahwa terdapat hubungan positif antara promosi penjualan dan kepuasan pelanggan. Persamaan regresi Y’ = 33,572 + 0,464X menggambarkan bahwa perubahan satu poin dalam promosi penjualan dapat mempengaruhi kepuasan pelanggan sebesar 0,464 poin. Secara statistik, promosi penjualan berkontribusi sebesar 22,7% terhadap kepuasan pelanggan, dengan 77,3% dipengaruhi oleh faktor lain. Temuan ini memperkuat bahwa PT Sarana Tani Indonesia Makmur dapat meningkatkan kepuasan pelanggan dengan memperkuat strategi promosi penjualan mereka. Kesimpulan ini didukung oleh analisis t hitung (4,130) yang lebih besar dari t tabel (2,000), mengonfirmasi pengaruh positif promosi penjualan terhadap kepuasan pelanggan.
Fondasi Rasional Kurikulum Modern Dan Relevansinya Dalam Konteks Pendidikan Kontemporer Perspektif Ralph W. Tyler Tohari, Tohari; Setiawan, Fajar
Journal of Innovative and Creativity Vol. 5 No. 3 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

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Abstract

Ralph W. Tyler’s rational curriculum model has long served as a foundational pillar in educational planning, offering a systematic structure grounded in clarity, purpose, and measurability. However, in today’s rapidly evolving educational landscape—shaped by digital disruption, social complexity, and a growing call for learner-centered approaches—Tyler’s model invites critical reconsideration. This study explores the enduring relevance of Tyler’s curriculum framework within the context of 21st-century education, emphasizing its philosophical foundations, structural logic, and limitations when applied in humanistic and postmodern learning environments. Employing a qualitative, literature-based method, this paper critically analyzes Tyler’s core principles—educational objectives, learning experiences, content organization, and evaluation—and juxtaposes them with contemporary curricular discourses such as constructivism, critical pedagogy, and Understanding by Design. The findings reveal that while Tyler’s model retains practical value as an organizational scaffold, it requires significant epistemological renewal to remain responsive to today’s learners and societal needs. As a theoretical contribution, this paper proposes a Rational–Praxis Curriculum Design—a hybrid model that maintains the integrity of Tyler’s rationality while integrating reflective praxis and a more humane, contextual approach to learning. This model aspires to bridge the gap between structured educational planning and the lived realities of teaching and learning.
Co-Authors Agung Iman, Sabda Arif Hidayat Ashari, Azis Bambang Hendro Sunarminto Bambang Setiadi DAHLIA WULAN SARI Didik Didik Dja’far Shiddieq Eko Hanudin Elliska Murni Harfinda Endang Dwi Siswani Endang Sulistyaningsih Fachria, Rizqy FAJAR SETIAWAN Herry Wardono Meiratania, Marisa Muhammad Anshar Prasetyo, Riko Priyono Suryanto Putri Ratnasari Rahman, Fadali Rustomo, Rustomo RY. ADAM PANJI PURNAMA Saparso Saparso Setiawan Setiawan Shiddieq, Dja’far Sigit Normagiat Sri Waluyo Suharno Suharno Sulistia Ningsih, Sulistia Susila Kristianingrum Tia Nuraya