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All Journal VALENSI CHEMISTRY PROGRESS ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Pendidikan Kimia Undiksha Jurnal Kelautan Tropis QUANTUM: Jurnal Inovasi Pendidikan Sains Jurnal Tadris Kimiya Jurnal Zarah DWIJA CENDEKIA: Jurnal Riset Pedagogik Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Jambura Journal of Educational Chemistry Jambura Journal of Chemistry Jurnal Pendidikan dan Kewirausahaan Jurnal Ilmu Pendidikan Indonesia
Murtihapsari .
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Mathematics Physics Social Sciences Other

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Detection and Identification of Potentially Harmful Microalgal Species in Doreri Bay, Manokwari, West Papua, Indonesia: A Preliminary Study Tururaja, Tresia Sonia; Bawole, Roni; Mogea, Rina A.; Murtihapsari, Murtihapsari; Manan, Jemmy; Kusuma, Aradea Bujana; Kolibongso, Duaitd
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 30, No 1 (2025): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.30.1.33-70

Abstract

Harmful algal blooms (HABs) frequently exhibit recurring patterns in specific locations and are often associated with significant environmental challenges, such as eutrophication. However, HABs have also been observed in areas with lower levels of eutrophication. This study aimed to detect and identify phytoplankton species responsible for blooms in the waters of Doreri Bay, with a particular focus on potentially harmful species (HABs). It represents the first attempt in this region to identify microalgal species. Field sampling was conducted during the southeast (dry) season of 2023 at nine stations across Doreri Bay. A total of 21 phytoplankton taxa, representing three classes were identified, with 14 taxa (66.7%) being potentially harmful. Phytoplankton cell densities ranged from 2.96 × 10⁴ cells L-1 to 1.22 × 10⁵ cells L-1, with an average density of 2.01 × 10⁴ cells L-1. The community was dominated by Diatoms, including Bacillaria spp., Coscinodiscus spp., and Rhizosolenia spp., and Cyanobacteria, mainly Trichodesmium spp. Two bloom patterns were observed: Cyanobacteria and Dinoflagellates dominated coastal areas, while Diatoms were more abundant in the outer bay. Correlation analysis revealed that temperature, salinity, and dissolved oxygen (DO) were the primary environmental factors driving phytoplankton variability and growth in the shallow coastal waters of Doreri Bay. These findings suggest that the phytoplankton community structure in this region remains stable when environmental gradients stay within the tolerance thresholds of sensitive species. Conversely, potentially harmful algal blooms are likely to develop when these environmental gradients exceed the tolerance levels of more resilient species.
Pengembangan e-modul berbasis flip builder pada pokok bahasan larutan elektrolit dan non elektrolit kelas X Lidya Kristina Tualena; Yunita Pare Rombe; Murtihapsari Murtihapsari
DWIJA CENDEKIA: Jurnal Riset Pedagogik Vol 8, No 3 (2024): December 2024
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jdc.v8i3.93167

Abstract

Tujuan dari penelitian ini adalah menganalisis tingkat kevalidan, kepraktisan, dan respon siswa terhadap penggunaan E-Modul larutan elektrolit dan non-elektrolit yang dikembangkan dengan aplikasi Flip Builder. Metode penelitian adalah Research & Development (R&D) pendekatan model ADDIE, yang mencakup lima tahapan: Analysis, Design, Develop, Implementation, dan Evaluation. Teknik analisis data yaitu observasi, wawancara, lembar validasi, dan angket yang diisi oleh peserta didik. Berdasarkan penelitian diperoleh hasil bahwa E-Modul yang dikembangkan memiliki tingkat validitas sebesar 91.96%. Hasil angket respon siswa tingkat kepraktisan diperoleh hasil sebesar 76.10% sehingga E-Modul larutan elektrolit dan Non Elektrolit valid dan praktis. Sehingga aktivitas dalam belajar mengajar dapat lebih jelas, efektif, efesien dan interaktif dalam mencapai tujuan pembelajaran. Development of e-modules based on flip builder on the subject of electrolyte and non-electrolyte solutions class X Abstract: This study aims to find out how to develop and determine the level of validity and practicality of the flip builder-based E-Module, as well as to find out the students' responses to the E-Module developed. This research method is Research & Development (R&D) using the ADDIE model which includes the Analysis, Design, Development, Implementation, and Evaluation stages. Data collection tools in this study are observation, interviews, validation sheets, and student questionnaire sheets. Based on the results of the study the E-Module developed through the analysis stage (problem determination analysis and needs analysis), the design stage (designing the needs, objectives, content, and structure, visual design of the E-Module), the development stage (developing, and validating the E-Module in accordance with the suggestions of the validator) implementation (conducting trials of products that have been developed) and evaluation (E-Module in the final revision evaluation of the developed product). The research results from the assessment of the E-Modul validator developed have a validity level of 91.96%. Based on the results of the student response questionnaire, the practicality level was 76.10% so the electrolyte and non-electrolyte solution E-Modules were valid and practical to use.
MOTIVASI BELAJAR KIMIA TERHADAP KEMAMPUAN KOGNITIF PESERTA DIDIK PADA MATERI SISTEM KOLOID TUMINAH, MARIA LUCIA; LARASATI, CHRISTIANA NIKEN; MURTIHAPSARI, MURTIHAPSARI
Jurnal Ilmu Pendidikan Indonesia Vol 9 No 2 (2021)
Publisher : Master of Science Education Program, Postgraduate Program of Cenderawasih University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/jipi.v9i2.1720

Abstract

Education can be created through an active learning atmosphere in developing the self-potential of students to have religious spiritual strength, self-control, personality, intelligence, noble character, and skills needed by themselves, society, nation and state. This study aims to determine the influence and relationship between motivation to learn chemistry on cognitive learning outcomes of students at SMA Negeri 1 Manokwari on colloidal system material. The research method used is a quantitative experiment with an associative approach. This research design used pre-experimental design in the form of One-Shot Case Study. The sampling technique in this study used the Non Probability Sampling Technique, with Purposive Sampling. The samples used were students. Data collection instruments included a questionnaire on motivation to learn chemistry and tests of cognitive learning outcomes. The results showed that there was a significant influence between the motivation to learn chemistry on students' cognitive learning outcomes, which was indicated by the significance value obtained from the simple linear regression test and the correlation test, namely 0.0001 and the R Square value of 33%. and there is a positive relationship between motivation to learn chemistry on cognitive learning outcomes of students.
Profil Kandungan Kimia dan Potensi Senyawa Aktif Serta Aktivitas Biologi dari Ekstrak Daun Pepaya (Carica Papaya L.) Asal Manokwari Susilowati, Susilowati; Faisal, Faisal; Murtihapsari, Murtihapsari; Rahmasari, Novia; Ramlah, Ramlah
Jambura Journal of Chemistry Vol 7, No 2 (2025): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jambchem.v7i2.28393

Abstract

 Penelitian ini adalah penelitian tentang Profil Kandungan Kimia Dan Potensi Senyawa Aktif Serta Aktivitas Biologi Dari Ekstrak Daun Pepaya (Carica Papaya L.) Asal Manokwari. penelitian ini memiliki tujuan jangka pendek atau tujuan umum untuk melihat profil kandungan kimia dan aktivitas biologi ekstrak dari daun pepaya. Ekstrak daun pepaya diperoleh meggunakan metode maserasi yang selanjutnya akan diidentifikasi kandungan senyawa kimianya dengan metode fitokimia dan menggunakan metode radikal bebas DPPH (1.1Diphenyl-2-picrylhidrazyl) untuk mengetahui aktivitas biologi daun pepaya Hasil penelitian yang telah dilakukan menunjukkan daun pepaya asal kota Manokwari mengandung senyawa aktif alkaloid, Triterpenoid, Steroid dan Falvonoid. Hasil uji aktivitas antioksidan diperoleh nilai IC50 sebesar 875.3 ppm.Nilai IC50 yang besarnya lebih dari 200 ppm menandakan bahwa ekstrak daun papaya merupakan antioksidan lemah. Selain aktioksidan, esktrak daun pepaya juga mengandung antibakteri, esktrak daun pepaya (Carica Papaya L.) dapat menghambat pertumbuhan bakteri staphylococcus aureus pada konsetrasi 100% dengan rata-rata diameter zona hambat 6,95 yang termasuk dalam kategori sedang. 
Penggunaan Model Pembelajaran Problem Based Learning Terhadap Minat Hasil Belajar Kimia pada Peserta Didik Murtihapsari, Murtihapsari; Achmad, Fauziah; Larasati, Christiana Niken; Yogaswara, Radite
Jambura Journal of Educational Chemistry Vol 4, No 2 (2022): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jjec.v4i2.14050

Abstract

Penggunaan model pembelajaran sangat memberikan pengaruh terhadap hasil belajar dari peserta didik. Guru masih menggunakan model pembelajaran konvensional dengan metode ceramah dalam menyajikan materi sehingga peserta didik merasa jenuh dan kurang memahami materi. Alternatif penggunaan pembelajaran model Problem Based Learning yang inovatif dan kreatif dapat meningkatkan minat belajar peserta didik di kelas. Metode ulasan ini merupakan kajian dari berbagai artikel yang telah terpublikasi nasional pada jurnal ilmiah terakreditasi. Beberapa literatur dikumpulkan yang terkait tema relevan tentang kajian proses pembelajaran dengan menggunakan model Problem Based Learning. Berdasarkan kriteria data yang diperlukan dalam ulasan ini, maka terdapat 24 (dua puluh empat) artikel yang sesuai dengan tema. Penggunaan model Problem Based Learning dalam proses pembelajaran diharapkan peserta didik dapat aktif, mampu tanggap dalam menyelesaikan masalah tekait materi pelajaran, kreatif dan mandiri dalam menjawab soal serta terjadi peningkatan dalam berfikir kritis.
Developing Android-Based Interactive Learning Media Assisted by Smart Apps Creator on Atomic Structure Material Faisal, Faisal; Susilowati, Susilowati; Rumihin, Tamar; Murtihapsari, Murtihapsari
Jurnal Tadris Kimiya Vol 10 No 2 (2025)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v10i2.45369

Abstract

The integration of digital technology in chemistry education necessitates the development of innovative learning media to facilitate students’ comprehension of abstract and complex concepts, such as atomic structure. This study aimed to develop and validate an Android-based interactive learning medium and to examine its practicality for chemistry learning. A research and development (R&D) methodology was employed, utilizing the 4-D model comprising define, design, develop, and disseminate stages. During the define stage, students’ learning needs and difficulties were identified through classroom observations, interviews, and needs analysis questionnaires. The design stage involved the formulation of learning objectives, content organization, and the development of a media prototype. In the develop stage, the learning media was evaluated using validation instruments completed by experts in chemistry content, instructional media, and learning design. The disseminate stage focused on assessing practicality through student response questionnaires. The results revealed that the developed learning media achieved high validity, with mean expert validation scores of 3.86 for content, 3.80 for media, and 3.85 for design, resulting in an overall mean score of 3.83, categorized as very valid. Furthermore, student responses indicated a high level of practicality, with an average score of 3.55, classified as very positive. These findings suggest that the Android-based interactive learning media is feasible and practical for supporting students’ understanding of atomic structure and has strong potential for implementation in chemistry learning contexts.
Development of Augmented Reality Media Based on Assembler Edu on Molecular Geometry Suparman, Achmad Rante; Murtihapsari, Murtihapsari; Astari, Besse Firanita; Ramlah, Ramlah; Faisal, Faisal
QUANTUM: Jurnal Inovasi Pendidikan Sains Vol 16, No 1 (2025): April 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/quantum.v16i1.22025

Abstract

This study aimed to develop and evaluate the effectiveness of Augmented Reality (AR)-based learning media using Assembler Edu to enhance the understanding of molecular geometry concepts at the Senior High School (SMA) level. The research employed a Research and Development (R&D) approach, incorporating both the Spiral and Waterfall development models. These models consisted of four main stages: setting objectives, identifying and mitigating risks, designing, and developing. Data were collected through expert validation, student trials, and user satisfaction questionnaires. Five validators assessed the media, and its validity was analyzed using Aiken’s V formula, while reliability was measured through inter-rater agreement. The results showed that all Aiken’s V values were above 0.8, indicating strong agreement among experts and confirming the validity across all categories. The inter-rater agreement values exceeded 75% (kappa > 0.70), demonstrating a high level of consistency among validators. Trials were conducted with 60 students from two schools: MAN 1 Prafi Manokwari and SMA 3 Kendari. The findings indicated a low difficulty level and reflected positive student responses toward the use of AR media for learning molecular structures. In conclusion, this study demonstrated that AR-based learning media offers an innovative and effective solution for enhancing chemistry education.
Co-Authors -, Radite Yogaswara Achmad Rante Suparman Achmad Rante Suparman, Achmad Rante Achmad, Fauziah Agnes Dyah Novitasari Lestari Alberta, Fitria Alif Rahman Amir M. Suruwaky Anggriana Parafia Apriani Parubak Apriani Sulu Parubak Apriani Sulu Parubak Apriani sulu parumbak Aradea Bujana Kusuma, Aradea Bujana Arum Sugianingsih Astari, Besse Firanita Boima Ramses Situmeang Chairunnisa, Wa Ode Chahyani Christiana Niken Larasati Christiana Niken Larasati Christiana Niken Larasati Darma Santi Dian Oktavia Pandi Dikdik Kurnia Faisal Faisal Fitria Alberta Hermawaty Abubakar Isma Yanti Vitarisma Sukirno Putri Kadarusman Kolibongso, Duaitd Larasati, Christiana Niken Lidya Kristina Tualena Lousia Vionalisa Letlora Manan, Jemmy Manuella Tandi Toding Mathelda K. Roreng Muhammad Dailami, Muhammad Mulianti Saharun Nelly Gultom Prafitaria, Anggriana Putri Sarera Surbakti Putri Sarera Surbakti Putri Surbakti Sarera Radite - Yogaswara Radite Yogaswara Radite Yogaswara Radite Yogaswara - Rahmasari, Novia Ramlah Ramlah Ramlah Ramlah Rina A. Mogea Rombe, Yunita Pare Romlah Dwi Cahyani Roni Bawole Rumihin, Tamar Sri Neni Patandean Surbakti, Putri Sarera Susilowati Susilowati Tati Herlina Tati Herlina Tati Herlina Thelma - Aluman TUMINAH, MARIA LUCIA Tururaja, Tresia Sonia Unang Supratman Wa Ode Chahyani Chairunnisa Yasmiwar Susilawati Yogaswara, Radite Yunita Pare Rombe Yunita Pare Rombe