Jurnal FKIP Universitas Mataram (Fakultas Keguruan Dan Ilmu Pendidikan)
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Characteristics of the Antagonistic Fungus Nigrospora Oryzae Against the Fungus Fusarium as a Source of Biological Learning in Chili Plants
Get PDFOne of the primary diseases that attack chilli plants (Capsicum annum) is Fusarium wilt, which is caused by the pathogenic fungi F. oxysporum and F. solani. This study aims to analyze the parasitism mechanism of the antagonistic fungus N. oryzae against the pathogen that causes Fusarium wilt in chilli. The method used was a dual culture technique antagonism power test with observations carried out every day from day 0 to day 5. The results of the study showed that the inhibition rate achieved was 33.3% against F. oxysporum and 18.18% against F. solani with the antagonism mechanism of N.oryzae, including 1) Mycoparasitism; 2) Degradation of pathogen cell wall; 3) competition for nutrients and space. The results showed that N. oryzae could inhibit the growth of F. solani and F. oxysporum. This proves that N. oryzae has the potential to be an effective antagonistic fungus in controlling both pathogens. The contribution of the results of the introduction of fungal antagonism is used as a learning resource to understand the concept of learning fungi through direct practical activities in the Laboratory
Community Perception and Preference Towards the Rumbio Customary Forbidden Forest, Kampar Regency, Riau Province
Get PDFThe Rumbio customary forbidden forest is one of forests where local wisdom is applied by its indigenous people. This forbidden forest has high biodiversity, and the community greatly respects customary regulations. However, while some people strive to protect the environment, others neglect the forest, leading to a reduction in land that was once vast. This research aims to determine community perception and preference towards Rumbio Customary Forbidden Forest, Kampar Regency, Riau Province. This study employs interview methods, questionnaires, and document studies. The sample selection follows a proportional random sampling method, with qualitative and quantitative descriptive analysis techniques using a Likert Scale approach. The research results indicate that the community's perception of Rumbio customary forbidden forest reflects a complex relationship between ecological, social, and economic values. Strengthening community awareness of sustainable management and reinforcing the role of customary institutions in forest conservation is crucial
Growth and Production of Fusan FP4 Inulinase at 0.15% and 0.2% Yeast Extract Concentration
Get PDFInulin is a polysaccharide, consisting of fructose units. Inulin has several benefits for our own bodies and for industrial circles. Inulinase E.C.3.2.1.7. is a hydrolytic enzyme that catalyzes the hydrolysis reaction of inulin polysaccharides into fructose and/or fructooligosaccharides. This study aims to determine the growth rate of Fusan FP4 inulinnase and the production of Fusan FP4 inulinnase at yeast extract concentrations of 0.15% and 0.2%. Conversion of tubers into fructose with enzymatic techniques (inulinase enzyme) can produce 95% fructose. Fusan FP4 is a protoplast fusion of indigenous yeast Pichia manshurica. Yeast Extract is a source of Nitrogen for microorganisms in culture media. The concentration of Yeast Extract in the media can affect the growth and metabolic products of microorganisms. Inulinase activity was determined by measuring reducing sugars combined with inulin as a substrate. This activity was measured using a spectrophotometer at a wavelength of 520 nm. The study showed that the specific growth rate at a yeast extract concentration of 0.2% was higher than yeast extract concentration of 0.15%. However, The highest inulinase activity was found at a yeast extract concentration of 0.2%
Carbon Stock Dynamics with Spatial and Temporal Approaches in Forest Area with Special Purpose (KHDTK) Senaru
Get PDFForests have the ability to reduce carbon dioxide (CO2) and store it in the form of biomass. This study aims to determine the dynamics of carbon stocks in the Senaru Special Purpose Forest Area (KHDTK) with a spatial and time approach. Data collection was carried out in July-August 2024. Located in Senaru KHDTK. Vegetation data collection was carried out by systematic sampling with random start, vegetation data taken in the form of species, diameter and height were carried out on 43 sample plots measuring 20x20m with sub plots of 10x10m, 5x5m and 2x2m. Standing carbon stocks were determined using the allometric equation. Carbon stock dynamics were analyzed by comparing the results of the study with stock data from previous studies. Spatial analysis was conducted using ArcGis application with Inverse Distance Weight (IDW), Kriging and Spline spatial interpolation methods. The results showed that the average surface carbon stock was 66.35 tons/ha. It decreased by 13.48 tons/ha in 5 years, and decreased by 17.36 tons/ha in 10 years. The spatial interpolation method that has the least error rate is the Kriging method. To increase the carbon stock of Senaru KHDTK, it is necessary to increase the population of forestry plants including large-trunked multipurpose plants such as durian, dao, jackfruit and others
Isolation and Characterization of Cellulolytic Bacteria from Mangrove Leaf Litter in Bale Mangrove Ecosystem
Get PDFThis study aimed to isolate and characterize cellulolytic bacteria from mangrove leaf litter in the Bale Mangrove ecosystem, East Lombok. A descriptive-explorative method was employed involving serial dilution, CMC agar culture, morphological and biochemical identification, Gram staining, and qualitative cellulase activity testing using Congo red. A total of 15 bacterial isolates were obtained and analyzed. All isolates were Gram-positive, predominantly rod-shaped (bacilli), and exhibited varied colony morphologies. Biochemical tests revealed diverse metabolic capabilities, and seven isolates demonstrated cellulolytic activity, with isolate P2.2 showing the highest cellulolytic index (IS = 3.78). The findings indicate the presence of highly active cellulolytic bacteria in local mangrove litter with potential roles in natural cellulose degradation. This research confirms the ecological relevance of local microbial diversity and suggests further exploration of their enzymatic potential for biotechnology and environmental management
Improvement in Sperm Quality of Mice Due to Mono Sodium Glutamate (MSG) Exposure with Zingiber officianale var Rubrum Extract
Get PDFTechnological advances have made many things easier in various fields, one of which is the processing of sugar cane, which is used as a food flavoring and contains monosodium glutamate. These disorders can be reduced by administering Red Ginger as one of the antioxidant compounds that can enhance and improve sperm motility. The purpose of this study was to prove the increase in sperm motility in male rats exposed to MSG with the administration of red ginger. This study used a randomized post-test only control group experimental design, with 30 Wistar rats aged 13-14 weeks and weighing 200-300 grams. Statistical analysis was performed using One-Way ANOVA and Chi-Square tests. The results of this study show that in the sperm motility examination, there were 7 rats with motile sperm in the control group and group 1 (MSG), while in group 2 (MSG and Red Ginger) there were 8 rats with motile sperm. The group subjected to MSG plus red ginger therapy had the highest median sperm motility value among the three groups in this study, according to a comparison of their median values. The treatment of red ginger extract to male rats exposed to MSG tends to improve sperm motility, it can be concluded. Further research recommendations could include adding more varied treatment times so that more significant differences can be seen with graduated therapeutic doses
Nucleoside Antiviral Therapy for Herpes Zoster: A Literature Review
No full textHerpes zoster is a viral skin infection caused by the reactivation of the varicella-zoster virus, which remains latent in the dorsal root ganglia of the spinal cord and the cranial sensory ganglia. One of the most widely used classes of antiviral agents in the treatment of herpes zoster is nucleoside analogs. This study aims to review the use of nucleoside analogs in the management of herpes zoster. The method employed was a literature review of relevant research articles. The findings indicate that nucleoside analogs commonly used in herpes zoster therapy include acyclovir, valacyclovir, famciclovir, and brivudine. These agents are administered in various doses, routes, and therapeutic purposes, such as alleviating acute symptoms, accelerating skin lesion healing, preventing postherpetic neuralgia, and serving as prophylactic therapy in special conditions such as cancer or organ transplantation. Overall, the use of nucleoside analogs has proven effective in inhibiting varicella-zoster virus replication, reducing symptom intensity, and minimizing the risk of complications
Penguatan Pemahaman Lintas Budaya dan Mekanika Dasar melalui Permainan Tradisional Malaysia pada Siswa SD Muhammadiyah 9 Malang
Get PDFKegiatan pengabdian masyarakat ini bertujuan untuk memperkenalkan konsep mekanika dasar melalui permainan tradisional Malaysia sebagai sarana pembelajaran lintas budaya bagi siswa sekolah dasar. Kegiatan dilaksanakan di SD Muhammadiyah 9 Malang dan melibatkan 56 siswa kelas 3 sebagai peserta, Dosen dan Mahasiswa dari Universitas Negeri Malang (UM), mahasiswa dan dosen dari Universiti Teknologi MARA (UiTM) Penang dan Shah Alam sebagai fasilitator dalam program Vocational Inter-Cultural Camp (VICC). Metode yang digunakan mengacu pada pendekatan experiential learning, dengan skema pelaksanaan berupa pengenalan, praktik permainan di enam pos secara bergiliran, dan sesi refleksi dan evaluasi bersama. Permainan yang dikenalkan seperti Ting-ting, Pick Up Stick, dan Congkak tidak hanya sarat nilai budaya, tetapi juga mengandung unsur fisika dan mekanika dasar seperti gaya, keseimbangan, dan percepatan. Hasil pengabdian menunjukkan bahwa siswa terlibat aktif secara kognitif, afektif, dan psikomotorik. Interaksi antara siswa dan mahasiswa Malaysia juga memunculkan minat spontan terhadap bahasa dan budaya Melayu. Kegiatan ini berhasil menciptakan suasana pembelajaran yang menyenangkan, edukatif, dan membangun pemahaman awal tentang mekanika dasar serta nilai-nilai toleransi lintas budaya dan memiliki kesan yang positif bagi pihak yang terlibat dalam pengabdian ini
Studi Implementasi GeoGebra dan Blok Manipulatif sebagai Representasi Visual dan Konkret dalam Pembelajaran Pecahan
Get PDFDifficulties in understanding fraction concepts remain a significant challenge for elementary school students, primarily due to limitations in connecting abstract ideas with concrete experiences. This study aims to examine the implementation of GeoGebra and manipulatives blocks as visual and concrete representations in teaching fractions at SD Negeri 35 Ampenan. Employing a case study approach, the research involved 25 fourth-grade students as participants. Data were collected through observations, written tests, in-depth interviews, and documentation. The findings reveal: (1) an improvement in learning outcomes, indicated by an increase in average test scores from 72.2 (using manipulatives blocks) to 78.4 (using GeoGebra), representing an 8.6% gain; and (2) interviews with three students of varying ability levels suggested that concrete media (manipulatives blocks) were more effective for students with lower mathematical ability, while GeoGebra was preferred by students with stronger visual and conceptual skills. These findings suggest that the use of multiple representations can bridge understanding gaps and provide a more adaptive learning experience, particularly in teaching fractions. The study recommends integrating both visual and concrete media into mathematics instruction to enhance instructional effectiveness and strengthen student engagement
Pendidikan Dampak Napza terhadap Kesehatan dan Keberlangsungan Hidup Anak: Indonesia
No full textPendidikan mengenai bahaya NAPZA (Narkotika, Psikotropika, dan Zat Adiktif) sangat penting diberikan sejak dini karena penggunaan zat ini berdampak merugikan pada kesehatan fisik dan mental anak yang masih berkembang. Tujuan kegiatan ini adalah memberikan edukasi kepada remaja dan orang tua untuk meningkatkan kesadaran akan risiko NAPZA. Metode yang digunakan berupa penyuluhan langsung, diskusi interaktif, serta evaluasi melalui pretest dan posttest. Hasil menunjukkan peningkatan pemahaman peserta dengan skor posttest mencapai 100% pada semua pertanyaan. Kesimpulannya, pendidikan pencegahan penyalahgunaan NAPZA efektif dalam menjaga kesehatan dan keberlangsungan hidup anak. Peran serta keluarga dan masyarakat sangat diperlukan untuk menciptakan lingkungan yang mendukung anak agar terhindar dari pengaruh NAPZA