Jurnal Penelitian Pendidikan IPA (Science Education Graduate Program University of Mataram)
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The Chemical Science of Javanese Herbal Medicine (Jamu Jawa) as a Tourism Potential in Karangrejek, Wonosari, Yogyakarta
No full textThe purpose of this research is to describe the elements of Javanese, Medicine. Jamu has been a part of Indonesian life for hundreds of years, especially in Java. Javanese Jamu is an herbal drink made from various local medicinal plants, such as turmeric, temulawak, ginger, kencur, and many more. This concoction is believed to have health benefits, ranging from maintaining immunity to helping cure various minor ailments. The study method used is descriptive qualitative method and tends to use analysis. The theoretical basis is used as a basic reference in preparing the study report to match the conditions in the field. In addition, the theoretical basis can also provide an overview of the background of the study as material for discussion. The ability to collect data is an important factor in determining the validation of the study conducted. Data collection in this case is obtained secondarily, namely through documents or literature studies. The results of the study found that jamu as a tourist attraction has shown various benefits and potential that can support cultural and health tourism in Indonesia. With its background as a traditional medicinal plant-based drink that has been used by Javanese people for centuries, jamu not only provides health benefits but also has cultural and economic appeal
Need Analysis of Physics Laboratory Design to Enhance Student Creativity in Character Education
No full textThis study aims to evaluate the effectiveness of physics laboratory design in supporting the development of student creativity and character and identifying needs for improvement in the practicum context. Using a case study approach, the qualitative research method involved in-depth interviews and questionnaires with 100 Physics Education Study Programme students at Lambung Mangkurat University. The results showed that although the pre-lab activities and practicum guides received positive ratings, there were significant challenges in the relevance of the practicum to everyday life, practicum design that supports collaboration, and the development of creativity. Students felt the lab time and guidelines did not support creative and collaborative problem-solving. These findings indicate the need for a more open, problem-based laboratory design and better integration between technical aspects, creativity, and character education. This study recommends the development of laboratory modules that support problem-solving and collaborative approaches to improve students' skills holistically
Development of Articulate Storyline Media on Biodiversity Content Featuring Tropical Rainforests to Enhance Students’ Critical and Creative Thinking Skills
No full textThis research aimed to develop and assess the practicality and effectiveness of the Articulate Storyline Media (ASM) for teaching biodiversity, focusing on tropical rainforest content, for 10th-class students. The study applied the Research and Development (R&D) method using the ADDIE model (Analyze, Design, Develop, Implement, and Evaluate). Data collected were student responses for practicality and test results in assessing critical and creative thinking skills. Results showed that the interactive media achieved a practicality rating of 74% and 100% for the students and teacher, respectively. The effectiveness of the ASM in enhancing the creative thinking skills in the experimental class was significantly (p<0.000) higher, i.e., 89%, compared to 65% in the control group. These findings indicate that the Articulate Storyline media on biodiversity content efficiently and effectively enhances 10th-class students’ critical and creative thinking skills
The Development of a Qur'an-Based Learning Model in Astrophysics Lectures to Internalize Religious Character Values (A Hypothetical Model for Astrophysics Lectures)
No full textThis research proposes a Prophetic Learning Model that integrates the religious values of the Qur'an in astrophysics learning to deepen students' scientific understanding and form religious character. The main objective of this research is to develop a model that connects scientific knowledge with spirituality and internalizes religious character values such as faith, piety, patience, gratitude, and cooperation. The method used is a qualitative literature review with an analysis of learning theory, Islamic education concepts, and relevant Qur'anic verses. The results of the study found that the Prophetic Learning Model with stages: Inviting to purify the soul by praying; Reciting verses in the form of kauliah verses with dhikr; Teaching the book in the form of kauniah verses by thinking; Teaching wisdom by thinking and dhikr; and Reflecting on learning by assessing yourself. This model improves students' scientific understanding and strengthens their religious character and social skills. Challenges in its implementation include the difficulty in connecting Qur'anic verses with scientific concepts and the readiness of lecturers and students to adopt this new approach. This model has great potential to develop a more integrative learning experience. This study recommends further trials to evaluate the effectiveness and practicality of the model in the context of higher education, particularly in physics education study programs
Development of E-Books Based on 4C Skills Through a Differentiation Approach to Science Learning
No full textE-books are essential in developing 4C skills and differentiated learning because they offer accessibility and flexibility that support students' diverse learning styles. In addition, they allow customization of teaching materials according to students' needs, which increases motivation and learning independence. This research aims to develop an e-book based on 4C skills through a differentiated approach to valid, practical science learning. This study falls within the development research category that uses the ADDIE model. With an average validation score of 3.73, this e-book falls into the “very valid” category. In practical terms, this media is easy for teachers and students to use, fits the learning plan, and shows a learning implementation rate of 90%. Student responses were very good, with an average of 89.79% for four evaluation indicators, showing great benefits and a high level of satisfaction in the learning process. Overall, the e-book based on 4C developed through a differentiated approach to science learning can be categorized as valid and practical because it can increase student involvement in learning. In addition, interactive features in e-books support communication and collaboration between students, allowing them to share ideas and opinions. E-books also enable teachers to adapt material to individual needs so each student can learn at the pace and style they desire
Developing Elementary Science Online Learning Content Using Schoology
No full textThe development of science and technology can make students interested in participating in the learning process so that it can increase student competence. The reality in the field is that there are still many teachers who have not used schoolology-based online learning because of a lack of information. Teachers are less creative in developing teaching materials that suit the characteristics of students. This research began when researchers discovered gaps in conditions in the field that teachers were still not using technology enough, so that learning was less varied. The aim of the research is to produce online learning content using Schoology in elementary school science learning that is practical, valid and effective to increase student competence. The research uses the ADDIE model which consists of analyze, design, development, implementation, and evaluation. This research produces online elementary science learning content using schoology. The results of the research show that based on the expert assessment of the material, language and media the learning content developed was declared valid, practical based on the responses of students and teachers, and effective in increasing students' competence
Identifikasi Senyawa Metabolit Kopi Robusta (Coffea canephora) dan Kandungan Kafein Kopi Robusta Akibat Fermentasi Bakteri Asam Laktat Lactobacillus plantarum Menggunakan UPLC-QTOF-MS/MS
No full textRobusta coffee (Coffea canephora) is one type of plant that has long existed in Indonesia and has high economic value. Robusta coffee beans have the potential to be developed to reduce caffeine levels by treating them with lactic acid bacteria. This study aims to determine the metabolite profile of Robusta coffee from several samples treated with Lactobacilus plantarum bacteria. Samples were taken from the West Java location at the Patani Coffee Plantation. Sample extraction was carried out using the Ultrasonic Assisted Extraction (UAE) method with 96% ethanol. Metabolite content analysis was carried out using UPLC-QTOF-MS/MS with a C18 stationary phase column (Okta Decyl Silica), a mixture of formic acid/water 0.1/99.9 (v/v) and formic acid/acetonitrile 0.1/99.9 (v/v) mobile phases. The results of the analysis were interpreted using Masslynx software. The results showed that the caffeine content in coffee not fermented with Lactobacillus plantarum was 2.40%, coffee fermented with L. plantarum bacteria for 6 hours had an abundance% of 1.76%, and coffee fermented with L. plantarum bacteria for 24 hours had an abundance% of 2.38%. LC-MS/MS analysis identified compounds 35,26, and 25 in three Robusta coffee samples. These results were not significantly different from the fermentation of Lactobacillus plantarum in Robusta coffee beansKopi Robusta (Coffea canephora) merupakan salah satu jenis tanaman yang sudah lama ada di Indonesia dan memiliki nilai ekonomis yang tinggi. Biji kopi Robusta berpotensi untuk dikembangkan mengurangi kadar kafein dengan beri perlakuan menggunakan bakteri asam lakat. Penelitian ini bertujuan untuk mengetahui profil metabolit Kopi Robusta (Coffea canephora) dari beberapa sampel yang diberi perlakuan menggunakan bakteri L.plantarum. Sampel diambil dari lokasi jawa barat di Perkebunan Patani kopi. Ekstraksi sampel dilakukan dengan metode Ultrasonic Assisted Extraction (UAE) dengan etanol 96%. Analisis kandungan metabolit dilakukan dengan menggunakan UPLC-QTOF-MS/MS dengan kolom fase diam C18 (Okta Decyl Silica), fase gerak campuran asam format/air 0,1/99,9 (v/ v), dan asam format/asetonitril 0 ,1/99,9 (v/v). Hasil analisis diinterpretasikan menggunakan software Masslynx. Hasil penelitian menunjukkan bahwa kandungan kafein pada kopi tanpa bakteri L.plantarum 2,40, kopi dengan fermentasi bakteri L.plantarum (6 jam) retensi waktunnya 1,76, dan kopi fermentasi dengan bakteri L.plantarum 24 jam retensi waktu LC-MS/ MS adalah 2,38. Analisis LC-MS/MS mengidentifikasi adanya 35,26 dan 25 senyawa disetiap sampelnya. Hasil ini berbeda secara signifikan dengan perlakuan yang diberikan pada biji kopi
E-LKPD Based on Socio-Scientific Issues: A Means of Developing Science Literacy and Critical Thinking In The Era Of The Independent Curriculum
No full textAgainst the background of the limitations of learning media in facilitating the learning needs of students, as well as the importance of critical thinking skills and science literacy in facing global challenges. The independent curriculum is an approach designed to meet the learning needs of students flexibly, but still requires the active role of teachers in conveying essential concepts, so the development of SSI-based e-LKPD is expected to be an effective learning innovation to develop students' critical thinking skills and science literacy. The purpose of the study is to measure the effectiveness of SSI-based e-LKPD on environmental pollution materials on students' science literacy and critical thinking. The use of the liveworksheet application is used for interactive learning media. This type of research is quasi-experimental design with the one group pretest-posttest design method. The research was conducted in grade VIII of junior high school in Tanggamus district with a total of 128 students. Data analysis uses n-gain test and t-test. The results of the analysis obtained an n-gain of 33 in the control class and 53 in the experimental class. This value is in the range of 40-55 with the category of less effective. Furthermore, the results of the t-test showed a significant difference between the control and experimental classes (p<0.05); reject H0, thus that SSI-based e-LKPD is effective in improving critical thinking skills and science literacy of junior high school students
Implementation of Problem Based Learning to Improve Students Motivation
No full textThe purpose of this study was to describe the implementation of the Problem Based Learning (PBL) learning model with interactive multimedia media and to increase student learning motivation through the application of the Problem-Based Learning (PBL) learning model assisted by interactive multimedia media at SDN Jatisari 3 Bekasi. The research method used is Action Research by adopting the STAR approach (Situation, Challenge, Action, Reflection of Results and Impact). Data were collected through teacher reflection journals, video recordings of learning, observation sheets by school supervisors, interviews with students and teachers, surveys to students, and artifacts of student learning outcomes. The results of this study are that this innovative approach has a significant positive impact on student learning motivation in Elementary Schools. Some of the main findings that can be used as the main conclusions include: increased Student Engagement; interactive multimedia can be an effective tool to facilitate conceptual understanding; improving technological infrastructure is key to ensuring smooth implementation and a smooth learning experience; students find it more fun to learn with multimedia and feel more interested; increased student motivation and participation through the PBL Learning model assisted by interactive multimedia has succeeded in stimulating student learning motivation; and indicators of successful implementation have been met
Pengaruh lama penyimpanan buah terhadap karakteristik dan aktivitas antioksidan minyak biji labu kuning (Cucurbita moschata) “tipe Butternut”
No full textPumpkin (Cucurbita moschata) contains bioactive compounds that are spread almost throughout the organs. One of the important contents of pumpkin is seed oil which has antioxidant activity. Antioxidants play a role in counteracting free radicals so that it is widely used to improve health quality. Fruit storage can affect seed quality and antioxidant activity in it. The purpose of this study was to evaluate and compare the chemical characteristics and antioxidant activity of pumpkin seed oil with different fruit storage times. The method for obtaining pumpkin seed oil from fruit storage for 10, 20, and 30 Days After Anthesis (DAH) was carried out using the soxhlet extraction method. The extracted oil was thickened using a rotary evaporator. Furthermore, its chemical characteristics were tested including yield, acid number, peroxide number, saponification number, water content. Pumpkin seed oil was measured for its antioxidant activity using the DPPH method. Absorbance was measured at a wavelength of 526 nm using a UV-Vis spectrophotometer. The data obtained were analyzed using ANOVA followed by the DMRT test with a 95% confidence interval. The results showed that there were significant differences in the variation of fruit storage time including oil yield, acid number, saponification number, and antioxidant activity, while there was no difference in water content. Fruit storage time of 30 DAH gave the most optimal results in all parameters tested. The conclusion that can be drawn from this study is the characteristics and antioxidant activity of pumpkin seed oil at a storage time of 30 DAH produced better oil quality compared to storage times of 10 and 20 DAH.Labu kuning (Cucurbita moschata) memiliki kandungan senyawa bioaktif yang tersebar hampir pada seluruh organ. Salah satu kandungan penting pada labu kuning adalah minyak biji yang memiliki aktivitas antioksidan. Antioksidan berperan menangkal radikal bebas sehingga banyak dimanfaatkan untuk meningkatkan kualitas kesehatan. Penyimpanan buah dapat mempengaruhi kualitas biji dan aktivitas antioksidan di dalamnya. Tujuan dari penelitian ini untuk mengevaluasi dan membandingkan karakteristik kimia dan aktivitas antioksidan dari minyak biji labu kuning dengan lama waktu penyimpanan buah yang berbeda. Metode untuk mendapatkan minyak biji labu kuning dari penyimpanan buah 10, 20, dan 30 Day After Anthesis (DAH) dilakukan dengan metode ekstraksi soxhlet. Minyak hasil ekstraksi dikentalkan menggunakan rotary evaporator. Selanjutnya diuji karakter kimianya meliputi rendemen, bilangan asam, bilangan peroksida, bilangan penyabunan, kadar air. Minyak biji labu kuning diukur aktivitas antioksidannya menggunakan metode DPPH. Absorbansi diukur pada panjang gelombang 526 nm menggunakan spektrofotometer UV-Vis. Data yang diperoleh dianalisis menggunakan ANOVA dilanjutkan uji DMRT dengan selang kepercayaan 95%. Hasil penelitian menujukkan bahwa terdapat perbedaan signifikan pada variasi lama penyimpanan buah mencakup rendemen minyak, bilangan asam, bilangan penyabunan, dan aktivitas antioksidan, sedangkan untuk kadar air tidak terdapat perbedaan. Lama penyimpanan buah 30 DAH memberikan hasil yang paling optimal pada semua parameter yang diuji. Kesimpulan yang dapat ditarik dari penelitian ini adalah karakteristik dan aktivitas antioksidan minyak biji labu kuning pada lama penyimpanan 30 DAH dihasilkan kualitas minyak yang lebih baik dibandingkan dengan lama penyimpanan 10 dan 20 DAH