Jurnal Penelitian Pendidikan IPA (Science Education Graduate Program University of Mataram)
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Antibacterial Activity Testing of Methanol Extract of Yellow Rope Barb (Anamirta cocculus)
No full textIndonesia has abundant natural wealth. One of the endemic plants of Papua which is often used in traditional medicine is yellow rope (A. cocculus). This study aims to determine the antibacterial activity of methanol extract of yellow rope bark (A. cocculus) against P. acnes, S. aureus, and E. coli bacteria using an experimental microbiological approach in the laboratory, and the experiment model may also serve as a contextual laboratory-based learning resource in microbiology education. The antibacterial activity test was carried out using the disc diffusion method which was made in 3 concentrations, namely 5%, 10% and 15%. The results of measuring the diameter of the inhibition zone showed that each concentration was able to inhibit the growth of P. acnes bacteria with an average diameter of 2,816 mm (Weak), 6,733 mm (Medium), 9,333 mm (Medium), and control (+) clindamycin 2 μg 14,483 mm (Strong). S. aureus bacteria with an average diameter of 3.133 mm (Weak), 6.35 mm (Medium), 8.235 mm (Medium) and control (+) clindamycin 2 μg 20.97 mm (Very strong). E. coli bacteria showed an average diameter of 3.875 mm (Weak), 6.175 mm (Medium), 8.566 mm (Medium) and control (+) ciprofloxacin 5 μg 20.783 mm (very strong). This research shows that the methanol extract of yellow stem bark (A. cocculus) has antibacterial activity
Pengembangan Media Pembelajaran Video Animasi Doratoon untuk Meningkatkan Hasil Belajar IPAS Siswa Kelas V pada Materi Ekosistem yang Harmonis
No full textThe purpose of this study was to determine the feasibility, effectiveness, and practicality of Doratoon animated video learning media to improve student learning outcomes. The type of research used is research and development using the Borg and Gall model. The population used in this study involved 23 fifth grade students of SDN Wedarijaksa 03. Data collection techniques used test techniques (pretest - posttest) and non-tests in the form of interviews, questionnaires, observations, score lists, and documentation. The feasibility of the media is shown from the results of material and media expert validation which shows that the media is declared very feasible with an average score of 95%. The practicality of the learning media is shown from the results of teacher and student response questionnaires to the use of the media showing a “very positive” level of satisfaction, with an average score of 100% from teachers and 98.17% from students. The effectiveness of the learning media is evidenced by the small group N-Gain value of 0.67 and the large group of 0.69 classified in the “medium” category. The results showed that Doratoon animated learning media met the criteria of feasible, practical, and effective to improve students' social studies learning outcomes.Penelitian ini bertujuan untuk mengetahui kelayakan, keefektifan, dan kepraktisan dari media pembelajaran video animasi Doratoon untuk meningkatkan hasil belajar peserta didik.Penelitian ini merupakan penelitian pengembangan (R&D) dengan menggunakan model Borg and Gall. Populasi dalam penelitian ini melibatkan 23 peserta didik dengan uji coba sekala kecil pada 9 peserta didik kelas VI dan uji coba skala besar pada 14 peserta didik kelas V SDN Wedarijaksa 03.Teknik pengumpulan data pada penelitian ini menggunakan teknik tes (pretest – posttest) dan non test berupa hasil dari wawancara, angket, observasi, daftar nilai, dan juga dokumentasi. Kelayakan ditunjukkan video animasi pembelajaran dari hasil validasi ahli materi dan media yang menunjukkan bahwa video animasi Doratoon dinyatakan "sangat layak" dengan skor rata-rata 95%. Kepraktisan media pembelajaran ditunjukkan dari hasil angket respons guru dan peserta didik terhadap penggunaan media pembelajaran video animasi Doratoon menunjukkan tingkat kepuasan yang “sangat positif”, dengan skor rata-rata 100% dari guru dan 98,17% dari peserta didik. Keefektifan media pembelajaran animasi Doratoon dibuktikan dengan nilai N-Gainkelompok kecil sebesar 0,67 dan kelompok besar sebesar 0,69, yang tergolong kategori “sedang”. Hasil penelitian menunjukkan bahwa media pembelajaran animasi Doratoon memenuhi kriteria layak, praktis, dan efektif untuk meningkatkan hasil belajar pada pembelajaran IPAS kelas V di SDN Wedarijaksa 03
Analisis Kepuasan Pasien Rawat Jalan RSUD Sylvani: Pengaruh Kualitas Pelayanan Terhadap Indeks Kepuasan Pasien
No full textThis study aims to analyze outpatient satisfaction at Sylvani Hospital by considering the factors that influence it. The research method used was a quantitative survey with a cross-sectional research design, meaning data were collected at a single point in time to capture a snapshot of patient satisfaction levels and the factors affecting them. The cross-sectional approach enabled the researchers to analyze relationships between service quality dimensions and patient satisfaction within a limited timeframe. Data were collected from 205 respondents selected using sampling techniques in a limited population. The results showed that of the five dimensions of service quality (reliability, assurance, physical evidence, empathy, and responsiveness), the dimensions of tangible and responsiveness had a significant influence on patient satisfaction. This study recommends improving physical facilities and implementing a service digitization system to increase patient satisfactio
Application of Computer Assisted Instruction Model in Physics Learning
No full textThe rapid advancement of technology has significantly transformed various sectors, including education, leading to the emergence of e-learning. This approach utilizes electronic media to facilitate faster and more efficient absorption of learning materials by students. One form of e-learning is the Computer Assisted Instruction (CAI) model, which integrates information technology components such as communication tools, audio, video, and images into a cohesive multimedia platform. The implementation of CAI in e-learning enables flexible learning delivery by allowing educators to present instructional content and engage learners interactively, whether in one-on-one sessions or in small groups. This model enhances the learning experience by incorporating tutorials and multimedia presentations. Physics, as a branch of natural science, plays a critical role in shaping human reasoning and intellectual development. It investigates the fundamental elements of the universe, the forces acting upon them, and the resulting interactions, ranging from subatomic particles to cosmic phenomena. Natural Science itself is more than just the accumulation of knowledge in the form of facts or theories—it also involves systematic inquiry and discovery processes. Applying the CAI model in high school physics education, particularly in the topic of straight-motion kinematics, is expected to improve students’ comprehension and conceptual understanding. Based on evaluations from media and subject matter experts, as well as product testing, the instructional media developed has been rated highly feasible, receiving an 86% approval score from users
Green Supply Chain Management Innovation in Promoting Sustainability in Indonesia's Palm Oil Industry
No full textThe palm oil industry is vital to Indonesia’s economy but faces regulatory, environmental, and cost challenges, driving the need for sustainable supply chains. This study examines the impact of Green Supply Chain Management (GSCM) on corporate sustainability performance and the mediating role of Green Innovation. It focuses on Green Procurement, Manufacturing, Logistics, and Packaging. This study a quantitative approach, data was collected from industry specialists through structured questionnaires. The research follows a structured process: problem identification, literature review, hypothesis development, data collection, and analysis using Partial Least Squares Structural Equation Modeling (PLS-SEM). PLS-SEM was chosen for its suitability in handling complex models, formative constructs, and non-normal data, making it ideal for predicting GSCM’s impact on CSP Data from 100 managers across more than 20 companies were analyzed using PLS-SEM with WarpPLS 6.0, which handles non-linear and complex relationships. Findings show GSCM significantly improves economic, environmental, and social sustainability, with Green Innovation mediating economic and social impacts but not environmental ones. The study underscores the need to align GSCM with SDGs for long-term sustainability and offers strategic insights for academics and practitioners
Ammonia and Total Nitrogen Removal Using Equisetum hymale Based Phytoremediation in Landfill Leachate
No full textIn line with the problems faced by all landfills in Indonesia, the high level of waste entering landfills is not commensurate with the cost and quality of waste management which is still low. The volume of landfill leachate with levels of organic, inorganic and metal content at the Jatibarang landfill has the potential to pollute the Kreo river. The dangerous impact on health and ecosystem continuity if the total ammonia and nitrogen content is too high in Jatibarang landfill leachate, efforts to manage it with a phytoremediation agent are Equisetum hymale. This research method is an experiment with a completely randomized design (CRD) designed with the type of Equisetum hymale and 3 treatment of Equisetum hymale biomass, namely, P0: 0 g, P1: 750 g, and P2: 1000 g of Equisetum hymale per 10 liters of leachate, each treatment was repeated 3 times. This phytoremediation is very effective in reducing ammonia levels, the reduction in ammonia levels reached 99.7% and the highest total nitrogen content reached 91.7%. It was concluded that the Equisetum hymale was effective in reducing ammonia levels. The effectiveness of reducing ammonia levels and nitrogen levels was most optimal on the third day of P2. The Equisetum hymale removed ammonia and total nitrogen up to 70% in variation of contact time
Management of Traumatic Ulcers in a Patient with Angle Class I Malocclusion: A Case Review
No full textMalocclusion is an inappropriate relationship of opposing teeth when the jaws are in contact. This malocclusion condition can cause oral cavity problems, one of which is traumatic ulcers. Traumatic ulcers are one of the most common lesions on the oral mucosa, where there is a loss of the epithelial layer beyond the basement membrane and affects the lamina propria which is generally caused by trauma. Traumatic ulcers can occur on the oral mucosa, including: on the tongue, lips, buccal mucosa folds, gingiva, palate, labial mucosa, buccal mucosa and floor of the mouth. The clinical picture of traumatic ulcers is not specific depending on the etiology, has a smooth surface, a yellowish lesion base and red margins and no induration. Ulcers usually heal without leaving a trace in 10-14 days, spontaneously or after eliminating the cause. Traumatic ulcers can occur at any age, both in men and women. The prevalence of traumatic ulcers is quite high. Several studies show variations in the range of 3 - 24% of the population. Management of traumatic ulcers is in the form of correcting predisposing factors. Local symptomatic treatment is the standard treatment for simple traumatic ulcers. Therapy in this case is to provide Oral Hygiene Instructions on the importance of maintaining dental and oral health. In addition, the patient was prescribed topical hyaluronic acid (Aloclair gel 8 ml) to reduce pain, povidone iodine antiseptic mouthwash and vitamin B12 to accelerate healing and the patient was asked to check 1 week after treatment. Summary of the results of traumatic ulcer therapy due to class I malocclusion with topical hyaluronic acid Aloclair gel 8 ml, antiseptic povidone iodine mouthwash, and vitamin B12 showed significant improvement in symptoms. Aloclair gel helps reduce pain and accelerate healing, while antiseptic mouthwash helps prevent infection. Vitamin B12 plays a role in accelerating the wound healing process
Anatomy and Structure Secretary Hodgsonia Macrocarpa (Blume Cogn.) as Plant Traditional Medicine of the Tribe Besemah for Anti-infective and Degenerative in district Lahat, South Sumatra
No full textHodgsonia macrocarpa (Blume) Cogn. is one of the type rare cucurbita found in Sumatra. Plants This is a woody liana Cucurbitaceae which is abundant utilized by the tribe Besemah in Lahat Regency, South Sumatra with Name local Still kadam, as plant drug traditional for treat disease infection including hepatitis, pneumonia, tuberculosis and other diseases degenerative namely liver. This research aims to know structure anatomy and structure secretory as well as its distribution. Study done in the month January until April 2024, located in Sukaraja Hamlet Subdistrict Longing for Lahat Regency, South Sumatra. Research This use method descriptive and creation preparation with Paraffin and whole mount methods. Based on observation anatomy and structure secretory in H. macrocarpa namely, leaves composed of upper and lower epidermis which are covered cuticle, parenchyma palisade and sponge, network vessels, sieve cells, and non-glandular trichomes in the form of trichome single end pointed and trichome star, while trichome trichome glandular consists of from trichome conoidal and trichome headed stalk short, cell idioblast shaped round and shaped pentagon. Stem arranged by network epidermis, collenchyma, parenchyma, network vessels, found existence glandular trichomes terminal blunt, glandular trichomes terminal pointed, trichomes uniseriate, cell idioblast shaped round, crystal prisms and druse crystals. Roots arranged by epidermis, tissue cork cortex, tissue vessels, sclereids, cells idioblast shaped round, druse crystals and crystals systolic. Type structure secretory H macrocarpha in the form of glandular trichomes, cells idioblasts and crystals. While distribution structure s secretory can found in leaves, stems and roots. in H. macrocarpa. Structure secretory mentioned play a role as place storage metabolite secondary
Telegram-Based Earthquake Early Warning
No full textEarthquakes are one of the natural disasters whose arrival cannot be ascertained and have a very detrimental impact, both in terms of property losses and lives. Indonesia, with its very active tectonic plate conditions, often experiences earthquakes, so it needs an effective early warning system. BMKG has developed an early warning system that informs of earthquake events through various media. However, this system still has weaknesses in the speed of delivering information to the public. This research aims to design and make a prototype of an earthquake early warning tool that can send information in the form of notifications and warning alarms using the Telegram application. The use of Telegram as a medium for conveying information was chosen because of its high-speed, security, and accessibility. This research was carried out at the Telecommunications Laboratory, Politeknik Negeri Medan starting from the system design process, system implementation, MPU6050 sensor testing, LoRa SX1278 testing, microcontroller ESP32 testing, and Telegram BOT testing to detect earthquake vibrations and send earthquake scale notifications via the Telegram. It produced a prototype of an earthquake early warning tool that uses Telegram for the dissemination of warning information in real-time, so that people can more quickly take self-rescue actions
PENGARUH PENGGUNAAN MEDIA PEMBELAJARAN BERBASIS POWERPOINT TERHADAP MOTIVASI BELAJAR DAN HASIL BELAJAR PESERTA DIDIK PADA MATA PELAJARAN IPAS KELAS IV DI SDN 4 PANGGANG KECAMATAN JEPARA KABUPATEN JEPARA
No full textThis study aims to examine the relationship between the use of interactive PowerPoint media and students’ learning motivation and outcomes in the IPAS (Natural and Social Sciences) subject. Using a quantitative approach with an ex post facto design, the research was conducted on fourth-grade students at SD Negeri 4 Panggang. Data were collected through questionnaires to measure motivation, documentation of test scores to assess learning outcomes, and interviews to provide contextual insights. The results show that students’ learning motivation reached an index value of 86.3%, categorized as high based on predetermined interpretation criteria. The average student learning outcome was 83.60, which falls into the “very good” performance category according to the school’s grading standard. While the study does not establish a causal relationship, the findings indicate a significant contribution of interactive PowerPoint media to students’ motivation and academic achievement. However, the absence of a comparison group and baseline measurements limits the ability to isolate the impact of the media from other influencing factors. Further research with controlled experimental designs is recommended to explore the causal effects of technology-based instructional media in elementary education