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All Journal JSME MIPA UNIMA AGRIVITA, Journal of Agricultural Science Jurnal Fisika : Fisika Sains dan Aplikasinya SOSCIED DIFFRACTION: Journal for Physics Education and Applied Physics Journal of Educational Method and Technology (JEMTEC) Jurnal Penelitian Sains dan Pendidikan (JPSP) Charm Sains : Jurnal Pendidikan Fisika Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Lontar Physics Today
Marianus Marianus
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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SAGU BARUK PALM (Arenga microcarpha) AS A SUPERIOR LOCAL FOOD SOURCES IN SANGIHE DISTRIC ISLAND Marianus, Marianus; Ashari, Sumeru; Rahardjo, Bambang Tri; Polii-Mandang, Bobby
AGRIVITA, Journal of Agricultural Science Vol 34, No 2 (2012)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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Abstract

Sagu Baruk Palm (Arenga microcarpha) is an endemic plant and producing carbohydrates as main source of local food to the people in Sangihe Island . The aim of this study is to analyze the production of  the sago and to analyze its the chemical composition and nutritional value. The research was conducted from October 2010 to June 2011 at Gunung Village Tabukan Tengah Regency Sangihe district Island. The village is spread from the coast up to the top of the hill with an altitude of ± 600 meters above sea level. The data analysis techniques in this research is descriptive analysis, F test, ANOVA. The results showed that the production of Sagu Baruk Palm at the third height position for the stem lenght 9.7-11m and stem diameter 14.3-15.7cm obtain wet sago flour 44-44.3kg and the stem rendemen from 21.3% to 22.3%, statistically only stem weight and pith weight has a significant different. The highest stem weight obtained at the bottom position, the highest pith weight obtain at the top position, and for the higest stem rendemen obtain at the top position . The chemical composition were significant differences in levels of protein, calcium, iron, magnesium, and pH at the three height positions. Key words: Superior local food sources, stem rendemen, production, sagu baruk palm.
SAGO BARUK PALM (Arenga microcarpha Becc) AS A SUPERIOR LOCAL FOOD SOURCE AND SOIL CONSERVATION PLANT AT SANGIHE ISLAND REGENCY Marianus, Marianus; Ashari, Sumeru; Rahardjo, Bambang Tri; Polii-Mandang, Bobby
AGRIVITA, Journal of Agricultural Science Vol 34, No 2 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i2.119

Abstract

Sagu Baruk Palm (Arenga microcarpha) is an endemic plant and producing carbohydrates as main source of local food to the people in Sangihe Island . The aim of this study is to analyze the production of  the sago and to analyze its the chemical composition and nutritional value. The research was conducted from October 2010 to June 2011 at Gunung Village Tabukan Tengah Regency Sangihe district Island. The village is spread from the coast up to the top of the hill with an altitude of ± 600 meters above sea level. The data analysis techniques in this research is descriptive analysis, F test, ANOVA.The results showed that the production of Sagu Baruk Palm at the third height position for the stem lenght 9.7-11m and stem diameter 14.3-15.7cm obtain wet sago flour 44-44.3kg and the stem rendemen from 21.3% to 22.3%, statistically only stem weight and pith weight has a significant different. The highest stem weight obtained at the bottom position, the highest pith weight obtain at the top position, and for the higest stem rendemen obtain at the top position . The chemical composition were significant differences in levels of protein, calcium, iron, magnesium, and pH at the three height positions.Key words: Superior local food sources, stem rendemen, production, sagu baruk palm.
Pengembangan Alat dan Panduan Praktikum Densitas Menggunakan Model Pembelajaran Inkuiri Terbimbing Pada Kuliah Fisika Dasar 1 Topik Tekanan Hidrostatis Marianus, Marianus; Rende, Jeane Cornelda; jurniawati, ni kadek
JSME (Jurnal Sains, Matematika & Edukasi) Vol 8, No 2 (2020): MARET - APRIL
Publisher : Universitas Negeri Manado

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Abstract

This research is motivated by the absence of tools and guidelines for the density practicum at the Physics Laboratory, UNIMA, so that the practicum activities are not carried out. The purpose of this research is to produce a product of tools and guidelines for practicum density using guided inquiry learning models. This research is a research and development study using the 4 D research model adapted from the Thiagarajan model, which is difine, design, develop and disseminate. The number of students taken is 8 people for the small group test and 16 people for the large group test. The data analysis technique was done descriptively with several types of assessment including cognitive and psychomotor. At the last meeting, students were given a questionnaire to see student responses to density practical tools and guidelines, the results of the questionnaire proved that 97.87% thought that tools and practical guides were very useful (SB) in experimental activities. Based on the results of the study it can be concluded that the product of the tools and guidelines for density practice using guided inquiry learning models with very good and proper qualifications.      Keywords: Practicum Guide, Research and Development, Hydrostatic Pressure,
Exploration Of Matematical Concep And Natural Sciences From The Local Wisdom Of Society As Learning Materials In The Curriculum 2013 Marianus, Marianus; Damaris, Damaris
Journal of Educational Method and Technology Vol 1, No 2 (2018): SEPTEMBER
Publisher : Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.615 KB) | DOI: 10.36412/jemtec.v1i2.776

Abstract

The population growth is closely related to the utilization of natural resources and will impact on environmental degradation. Therefore, identifying and inventorying the local wisdom of the community that aims to conserve the environment is very important. Natural science perspective lifting local wisdom in education is one way to revitalize, develop and maintain the values of local knowledge. This study aims to explore the elements of local wisdom in society, examines the concept of Natural Science and Mathematics contained in the elements of local wisdom and is designed for learning materials. The research was conducted in the District Manganitu Sangihe Islands in January 2016. Data collection using observation techniques and interviews with related parties and data obtained analyzed the concept of science underlying the forms of local wisdom existing in Manganitu community.The result of the research is a concept map which contains the network of Mathematics and Natural Science concepts. This research product can meet the needs of high school teachers and become one of the solution of thematic learning problem in Sangihe Island.Keywords : Concept of Mathematics and Science, Local Community Wisdom, Curriculum 2013
PENGEMBANGAN PANDUAN PRAKTIKUM GENERATOR SATU FASE DAN TIGA FASE BERBASIS INKUIRI TERBIMBING DENGAN MENTORING Tulandi, Djeli Alvi; Marianus, Marianus; Yohan, Jibrael
JSME (Jurnal Sains, Matematika & Edukasi) Vol 8, No 3 (2020): MEI - JUNI
Publisher : Universitas Negeri Manado

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Abstract

This research is motivated by the absence of practicum guides for one-phase and three-phase generator tools so that students lack expertise in using these tools in experimenting. The purpose of this study is to produce a physics practicum guidance product on a one-phase and three-phase generator using a guided inquiry model with mentoring. This research is a research and development study using the 4D research model adapted from the Thiagarajan model, which is define, design, develop and disseminate. The results of the study for mentors and groups get an average value of 86.45%, so that the guidelines fall into the feasible / valid category. and on the response of mentors and students 47.17% chose very useful (SB), 51.43% chose useful (B) and 1.4% chose less useful (KB) none voted unhelpful (TB). Based on the results of the study it can be concluded that a product has been produced in the form of a basic physics practicum guide for one-phase and three-phase generator tools using a guided inquiry learning model with good and proper qualifications. Keywords: Practicum guide, Research and Development, one-phase and three-phase generators, guided inquiry, mentoring.
EFEKTIVITAS PENGGUNAAN MODEL MULTIREPRESENTASI DALAM PEMBELAJARAN FLUIDA DINAMIS TERHADAP HASIL BELAJAR SISWA KELAS XI SMA NEGERI 1 LANGOWAN Korengkeng, Claudia Brigita; Marianus, Marianus; Mongan, Satyano Wim
SOSCIED Vol 7 No 1 (2024): SOSCIED - Juli 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i1.787

Abstract

The study aims to determine the effectiveness of the use of multirepresentation models in learning dynamic fluids on the learning result of students in class XI SMA Negeri 1 Langowan. With this type of research, namely quantitative research, true-experimental method with pretest-posttest control group design research design, the sample studied in the experimental class and control class amounted to 25 people determined based on random sampling technique. The population taken in this study were all grade XI students at SMA Negeri 1 Langowan. The research data was generated using a 12-item test instrument in the form of multiple choice questions. Based on the results of data processing, it was found that the average posttest value in the experimental class was 67.68 compared to the average posttest of the control class of 40.32. Then a statistical analysis was carried out in the form of T test analysis (Independent sample t-test) which showed a difference between student learning outcomes in experimental and control classes. Thus, the use of multirepresentation model is effective in improving the learning result of grade XI students at SMA N 1 Langowan. Thus it can be concluded that there is an increase in student learning result in the use of multirepresentation models in dynamic fluid learning
PENGEMBANGAN PEMBELAJARAN TED (THEMATIC-EXPLORATION-DEMOCRATIC) DALAM BELAJAR FISIKA PADA MATA KULIAH FISIKA LINGKUNGAN Marianus, M; Lahope, Kenny Setiawan
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.851

Abstract

Thematic-Explorative-Democratic Learning (TED-L) merupakan strategi pembelajaran yang menekankan pada kegiatan belajar mental-personalitas secara utuh dalam mengeksplorasi objek dan informasi untuk merekonstruksi pengalaman empiris individu maupun kelompok. Dalam merekonstruksi pengalaman empiris pada pembelajaran TED, mahasiswa diarahkan untuk mampu merepresentasikan pengalaman dalam bentuk verbal, visual, dan matematis khususnya pada pembelajaran fisika. Dalam pembelajaran fisika dengan strategi pembelajaran TED pada Matakuliah Fisika Lingkungan diperlukan suatu bahan ajar yang memuat petunjuk-petunjuk yang dapat membantu mahasiswa untuk merepresentasikan pengalaman yang diamati. Penelitian ini bertujuan untuk mengetahui kelayakan dan kepraktisan bahan ajar TED. Proses pengembangan bahan ajar ini menggunakan model 4D jenis penelitian R&D. Penelitian ini dilaksanakan di Jurusan Fisika Fakultas Matematika, IPA, dan Kebumian Universitas Negeri Manado terhadap 25 mahasiswa. Hasil penelitian dilihat dari dua aspek yaitu aspek kelayakan dan kepraktisan bahan ajar yang telah dikembangkan. Hasil kelayakan diperoleh melalui penilaian tim ahli media dan materi dimana hasil skor penilaian media sebesar 80,55 dan skor penilaian materi sebesar 93,75 dan untuk data praktikalitas diperoleh menggunakan angket respon siswa dimana 87% siswa menyatakan sangat setuju terhadap penggunaan bahan ajar. Kesimpulan menyatakan bahwa bahan ajar yang dikembangkan valid dan praktis untuk digunakan dalam pembelajaran.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE JIGSAW PADA MATERI SUHU DAN PENGUKURAN UNTUK MENINGKATKAN HASIL BELAJAR SISWA. Jamiluddin Sampe, Yulia Nurpadila; Marianus, Marianus; Rende, Jeane C.
Charm Sains: Jurnal Pendidikan Fisika Vol 4 No 1 (2023): FEBRUARI
Publisher : Program Studi Pendidikan Fisika Jurusan Fisika Fakultas Matematika, Ilmu Pengetahuan Alam, dan Kebumian (FMIPAK), Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (187.523 KB) | DOI: 10.53682/charmsains.v4i1.228

Abstract

The jigsaw type cooperative learning model is an example of a learning model that can be used by teachers in the teaching and learning process to improve student learning outcomes. The purpose of this research is to improve the process and learning outcomes of class XI IPA senior high school students on the topic of physics, temperature and heat by using the Jigsaw learning model. The method used in this research is experimental research using a one group pre-test-post-test design. This research was conducted through three stages. The first stage is to provide a pre-test to measure students' initial abilities. The second stage is giving treatment through a jigsaw cooperative learning model and the third stage is giving a post-test as a learning evaluation. The research subjects were high school students in class XI IPA at SMAN 2 Tondano 2022/2023. After the research data were obtained, they were statistically processed using SPSS 22.0 for windows. The average pre-test result was 5.32 and the post-test result was 85.21. Obtaining N-Gain scores from each student, there were 18 students in the high N-Gain category and 1 student in the medium N-Gain category, the total number of students who took part in the pre-test and post-test were 19 students. The results of this study indicate that by applying the jigsaw cooperative learning model to the physics topic of temperature and its measurement, student learning outcomes have increased
Rancang Bangun Prototipe Alat Pengukur Intensitas Cahaya Digital Berbasis Sensor Light Dependent Resistor dengan Arduino Uno Lolowang, Efraim Jonathan; Lucas, Bill Ryan; Marianus, Marianus; Tumangkeng, Jeane Verra; Pawarangan, Ishak
Lontar Physics Today Vol 4, No 2 (2025): June 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i2.23169

Abstract

Penelitian ini bertujuan untuk mengembangkan alat pengukur intensitas cahaya berbasis sensor Light Dependent Resistor (LDR) dan Arduino Uno yang mampu menampilkan hasil pengukuran secara real-time. Alat ini dirancang sebagai solusi alternatif untuk mengukur intensitas cahaya secara digital dengan efektif. Metode penelitian yang digunakan adalah Research and Development (RD) dengan tiga tahapan yakni perancangan alat, pembuatan alat dan uji coba dengan cara menguji alat terhadap berbagai tingkat pencahayaan. Data yang diperoleh dianalisis untuk mengetahui tingkat akurasi dan konsistensi alat. Hasil penelitian menunjukkan bahwa alat mampu memberikan hasil yang baik dan responsive dan mampu mendeteksi perubahan intensitas Cahaya dari lima kondisi berbda. Dengan pengembangan lanjutan dan kalibrasi yang lebih baik, alat ini berpotensi digunakan dalam berbagai aplikasi seperti sistem otomatisasi, pertanian, dan pendidikan.
Perancangan Alat Ukur Kuat Medan Magnet Berbasis Arduino Uno Menggunakan Sensor UGN-3503 Lumempow, Greity Syaloom; Derek, Glladyvio; Marianus, Marianus; Tumangkeng, Jeane Verra; Pawarangan, Ishak
Lontar Physics Today Vol 4, No 1 (2025): February 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v4i1.22916

Abstract

Pemahaman konsep medan magnet dalam pembelajaran fisika sering mengalami hambatan akibat keterbatasan alat peraga di sekolah. Untuk mengatasi permasalahan tersebut, penelitian ini bertujuan merancang dan mengembangkan alat ukur kuat medan magnet berbasis sensor UGN-3503 menggunakan mikrokontroler Arduino Uno. Metode penelitian yang digunakan adalah Research and Development (RD) dengan tahapan perancangan/perencanaan, pembuatan, dan pengujian alat. Hasil penelitian menunjukkan bahwa alat ukur medan magnet yang telah dirancang mampu beroperasi secara optimal pada jarak pengukuran 2-10 cm dengan tingkat akurasi secara rata-rata sebesar 97%. Hasil pengujian juga menunjukkan hubungan linier antara nilai pengukuran alat dan nilai perhitungan teoritis dengan koefisien determinasi  sebesar 0,9619 hasil alat dan 0,9636 hasil teoritis. Meskipun terjadi penurunan akurasi pada jarak di atas 10 cm, secara keseluruhan alat ini dapat digunakan sebagai media praktikum fisika di sekolah. Penelitian ini memberikan kontribusi terhadap pengembangan alat praktikum dalam memperkuat pemahaman konsep medan magnet pada peserta didik melalui pengukuran langsung secara digital.Kata kunci: alat ukur digital, medan magnet, sensor UGN-3503 Abstract. Understanding the concept of magnetic fields in physics is often hindered by the limited availability of instructional materials in schools. To address this issue, this study aims to design and develop a magnetic field strength measurement device utilizing a UGN-3503 sensor interfaced with an Arduino Uno microcontroller. The study employed a Research and Development (RD) methodology comprising the design, fabrication, and testing of the device. The results indicate that the designed magnetic field measurement device can operate optimally at measurement distances ranging from 2 to 10 cm, achieving an average accuracy of 97%. Furthermore, testing revealed a linear relationship between the device’s measured values and teorits calculations, with coefficients of determination (R²) of 0.9619 and 0.9636 for the device’s measurements and teoritis calculations, respectively. Although accuracy decreases beyond 10 cm, the device remains a viable tool for use in school physics labs. This study contributes to the development of educational laboratory equipment by strengthening students’ understanding of magnetic field concepts through direct digital measurement.Keywords: digital measuring device, magnetic field, UGN-3503 sensor
Co-Authors Amisan, Trianita Imannuela Arymbekov, Beken Bambang Tri Rahardjo Bambang Tri Rahardjo Binar Kurnia Prahani Bobby Polii Costu, Bayram Damaris, Damaris Derek, Glladyvio Dj Tulandi Firmanul Catur Wibowo Ishak Pawarangan Jamiluddin Sampe, Yulia Nurpadila Jeane V. Tumangkeng jurniawati, ni kadek Karundeng, Revaldy Imanuel Orlando Korengkeng, Claudia Brigita Kumendong, Igreya Mitchell Lahope, Kenny Setiawan Limbong, Merni Lintangesukmanjaya, Rahmatta Thoriq Lolowang, Efraim Jonathan Lucas, Bill Ryan Lumempow, Greity Syaloom Makarawung, Putri S Mongan, Satyano Wim Mottoh, Ferlitha Frisilia Potabuga, Putri Wulandari Rende, Jeane Cornelda Satyano W Mongan Sumeru Ashari Sumeru Ashari Theresje Mandang Yohan, Jibrael