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Ali Rahmat
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Research and Social Study Institute (RESSI) Prenggan, Kotagede, Kota Yogyakarta, Daerah Istimewa Yogyakarta 55172
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Open Global Scietific Journal
Published by Research and Social Study Institute
ISSN : -     EISSN : 29617952     DOI : https://doi.org/10.33292/ogsj.v1i2.8
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Open Global Scietific Journal (OGSJ) is a periodical publication from the IResearch and Social Study Institute (RESSI). Published semiannually, the journal has a goal to be a means of communication and dissemination of research results in Agriculture Sciences. Start Vol 1 Issue 2 Open Global Scientific Journal will publishes research articles, reviews/mini-reviews and letters in all areas of agricultural science. Topics covered include: 1. Agronomy 2. Plant breeding 3. Agricultural biotechnology (including tissue culture, molecular markers, molecular diagnostics, vaccines, genetic engineering, genome editing as well as synthetic biology) 4. Crop physiology and agroecology 5. Soil science and agroclimatology 6. Agricultural economics and rural sociology 7. Sustainable systems 8. Crop protection and Cultivation 9. Pharmacognosy and Pharmaceutical Development 10. Environmental implications of agricultural land 11. Environmental Sciences, including prevention and correction of adverse environmental effects (e.g., soil degradation, waste management, bioremediation)
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 38 Documents
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Effect of Vermicompost and Rice Husk Ash as an Organic Growing Media on Rice Seedling and Mat Quality in Tray Nursery Widi, Hastungkoro; Zaki, Muhamad Khoiru; Munawaroh, Umi
Open Global Scientific Journal Vol. 4 No. 1 (2025): Open Global Scientific Journal (OGSJ)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v4i1.50

Abstract

Background: Efficient mechanized rice transplanting depends on both the structural integrity of seedling mats and the physiological quality of the seedlings. To address this need, enhancing seedling and mat through organic growing media is essential for optimizing mechanized rice transplanting.Aims & Methods: This study aimed to evaluate the effects of organic amendments on seedling quality (seedling height, biomass, and plant population) and mat characteristics (thickness, weight, rolling score and diameter) in tray nursery. A randomized complete block design with three replications was employed, testing four treatments: alluvial soil without organic amendment (CO), with vermicompost (V), with rice husk ash (R), and with vermicompost and rice husk ash (RV).Results: The results showed that the rice seedling nursery using a mixture of soil and organic growing media (R, RV, and V) produced better seedling quality compared to CO including seedling height, biomass, and plant population. Regarding mat performance, RV produced the thickest (1.77 cm) and lightest (3.27 kg) mats, aligning with ideal conditions for mechanical transplanting. In contrast, CO mats were the heaviest (4.40 kg), and V produced the thinnest mats (1.40 cm). Rolling quality was highest in CO (score 10), while RV mats showed lower rolling integrity (score 6.7). V treatment achieved the smallest roll diameter (13.87 cm), facilitating better handling and transport. Overall, the results demonstrate that organic amendment selection significantly affects both physiological seedling traits and the physical integrity of seedling mats. The RV treatment offered the most balanced improvement in mat structure and seedling growth, making it a promising option for mechanized rice production.
Effectiveness of Bilimbi (Averrhoa bilimbi) and Lantana (Lantana camara) Leaf Extracts as Botanical Insecticides for Controlling Maize weevil (Sitophilus zeamais) Silalahi, Cecilya; Haryanti, Sindi; Solichah, Chimayatus
Open Global Scientific Journal Vol. 4 No. 1 (2025): Open Global Scientific Journal (OGSJ)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v4i1.48

Abstract

Background: Reduced production due to post-harvest pest attacks is a significant issue. Post-harvest pest control is crucial, and botanical pesticides are currently a primary option for post-harvest pest control. Bilimbi leaves (Averrhoa bilimbi) and lantana leaves (Lantana camara) contain active ingredients that have the potential to control the maize weevil (Sitophilus zeamais).Aims: This study aimed to determine the effect of bilimbi and lantana leaf extract on the Sitophilus zeamais population and the quality of maize seeds in storage, and to obtain the best concentration of bilimbi and lantana leaf extract in suppressing the Sitophilus zeamais population so that it can maintain the quality of maize seeds in storage.Methods: The experiment was arranged in a Completely Randomized Design (CRD) consisting of 7 treatments and 4 replications: control/no treatment (K), bilimbi leaf extract concentration of 3% (B1), 6% (B2), 9% (B3), and lantana leaf extract concentration of 3% (T1), 6% (T2), and 9% (T3). The variables observed were the Sitophilus zeamais population, germination power, and maize seed vigor index.Results: The results showed that various concentrations of bilimbi and lantana leaf extracts were effective in maintaining maize seed quality, particularly in terms of seed vigor index. The 9% concentration of bilimbi and lantana leaf extracts is best at suppressing Sitophilus zeamais.
Development of Sustainability Instruments for Waste Alms Program (Sedekah Sampah) for Community Based Solid Waste Management in Sleman Regency, Yogyakarta Ali, Abdulloh Rohman; Putra, Hijrah Purnama
Open Global Scientific Journal Vol. 4 No. 1 (2025): Open Global Scientific Journal (OGSJ)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v4i1.54

Abstract

Background: Community-Based Waste Management Programs have been carried out in various regions in Indonesia, including Waste Alms (sedekah sampah). However, some waste management in Indonesia is no longer active without knowing the cause. Therefore, it is necessary to conduct a sustainability assessment to identify areas for improvement. To carry out the assessment, a sustainability instrument is needed as an assessment tool.Aims & Methods: This research aims to compile sustainability instruments and conduct trials of these instruments. Sustainability instruments are based on five aspects of community-based waste management and consist of 18 assessment indicators and assessment parameters. The instrument is compiled based on several references obtained. The locations used for the trial of this sustainability instrument are six waste alms locations in Sleman Regency. The calculation method used to determine the sustainability class and calculate the total value is the weighting method.Results: The results of the sustainability instrument trial were obtained. The Sido Rukun Waste Alms scored 74%, the Taruna Bakti Waste Alms scored 75%, and the Sedyo Luhur Waste Alms scored 71%. The three waste alms are included in the sustainable class. Meanwhile, the Rukun Makmur Waste Alms, the Rukun Lestari Waste Alms, and the Permata Waste Alms all receive scores of 83%. These three waste alms are included in the very sustainable class. The results of the sustainability instrument trial indicate that the sustainability instrument prepared can be used for the assessment of waste alarms in the future.
Decision Support System in Determining Tourist Buses Using the Simple Additive Weighting (SAW) Method Marzuki, Donny Pramudia; Purbaratri, Winny; Prapto, Dwi Atmodjo Wismono; Faried, M Isnin
Open Global Scientific Journal Vol. 3 No. 2 (2024): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v3i2.57

Abstract

Background: Tourist buses play a critical role in group travel, where service quality, safety, comfort, and operational efficiency directly influence customer satisfaction. However, the selection process for tourist buses is often subjective, lacking structured evaluation mechanisms that account for multiple criteria.Aims: This study proposes a web-based decision support system (DSS) for tourist bus selection using the Simple Additive Weighting (SAW) method, designed to transform qualitative preferences into quantitative rankings.Methods and Results: The system evaluates nine well-known bus providers based on three key criteria: price, facilities, and brand, each weighted to reflect decision-making priorities. The SAW method was selected for its computational efficiency and ease of implementation; however, its inherent assumption of full compensability between criteria may lead to biased results in complex decisio contexts. To address this, the proposed framework incorporates expert-driven weight assignment and sensitivity analysis, ensuring that critical non-compensatory attributes such as safety are not overshadowed by other criteria. This integration enhances the robustness and reliability of the final rankings, making the system more adaptable to evolving market demands and customer expectations. Testing demonstrated that the DSS successfully ranked alternatives with transparent, data-driven results, with Melody Transport achieving the highest score (0.825) among the evaluated options. The novelty of this research lies in refining the SAW method for a sector-specific application and addressing its compensatory limitations through expert-based adjustments. This approach not only improves decision quality for consumers and tour operators but also establishes a scalable and intelligent framework for future DSS developments in the tourism transportation sector.
Design and Evaluation of a 27 MHz Microcontroller-Based Wireless Communication System for Disaster Mitigation Jaya, Indra; Nawawi, Muhammad; Irma
Open Global Scientific Journal Vol. 3 No. 2 (2024): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v3i2.61

Abstract

Background: Indonesia is a region frequently affected by natural disasters. During such events, critical infrastructure often suffers severe damage, and rebuilding it to a fully operational state requires a considerable amount of time. One of the key impacts of natural disasters is the damage to telecommunication networks, which necessitates rapid restoration efforts. Radio communication systems offer a viable solution for emergency communication during such times.Aims and Methods: This study presents the design of an early warning system simulator aimed at mitigating the impacts of disasters in vulnerable areas. The proposed system utilizes the ATmega328 microcontroller as the main data processor, an RX-2B module to receive 27 MHz radio signals transmitted by a TX circuit, and a TX-2B module to send wireless commands via 27 MHz radio frequency to the RX circuit. Additional components include a buzzer as an alarm indicator and a 16x2 LCD display to show patient room information. The objective of this research is to develop a microcontroller-based early warning system simulator for disaster-prone regions.Results: Based on the testing results, data transmission was successfully achieved at distances over 50 meters in indoor environments. In outdoor environments, reliable data communication was maintained at distances of up to 70 meters.
Analysis of The Effect of Elephant Grass (Pennisetum purpureum) Cutting Length on Silage Characteristics with a Shelf Life of 63 Days Azizah, Alfira Nurul; Sosiawati, Endang Sapta Hari; Dianingtyas, Brilian Desca
Open Global Scientific Journal Vol. 3 No. 2 (2024): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v3i2.63

Abstract

Background: One of the feed preservation techniques is silage to anticipate forage shortages in the dry season. One of the factors that affect the characteristics of silage is the length of grass cutting.Aims: The purpose of this study was to determine the effect of the length of elephant grass cutting (Pennisetum purpureum) on the quality of silage characteristics including physical, chemical and biological qualities with a shelf life of 63 days.Methods: The method used was an experiment with a Completely Randomized Design (CRD) design, the treatment used was the length of elephant grass cutting, with cutting levels of 3 cm, 5 cm, and 7 cm, each treatment was repeated 5 times and stored for 63 days. The variables observed were the physical characteristics of silage including texture, color, aroma using organoleptic tests with 15 somewhat trained panelists, then the chemical characteristics test by measuring the pH value of the silage and the biological characteristics test by assessing the presence of fungi in the silage. Data analysis used was the ANOVA test (analysis of variance) using the F test. If the F test shows a significant or very significant effect, it is continued with Duncan’s Multiple Range Test (DMRT) test.Results: The results of statistical analysis of the effect of elephant grass cutting length on silage characteristics showed that P1, P2, and P3 had no significant effect on texture, aroma, and pH value (P>0.05), while on color and the presence of fungi there was a significant effect (P<0.05). The conclusion of this study is that there is no significant effect on texture, aroma, and pH value of silage, while on color and the presence of fungi silage there is a significant effect. Suggestions for further research are expected to conduct further analysis on color, fungi, proximate tests, and palatability tests.
Community Structure of Marine Gastropod at Taruy Coastal Waters, Tutuk Tolu, East Seram, Maluku Haumahu, Sara; Uneputty, Prulley A; Supusepa, Junita
Open Global Scientific Journal Vol. 3 No. 2 (2024): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v3i2.65

Abstract

Background: Intertidal zone is located between high and low tide in the marine coastal waters. This zone has high diversity of marine resources, inclucing marine gastropods.Aims: The objective of this research was to analyze gastropod community structure namely ecological density, abundance, and ecological indices such as diversity index, evenness index, and dominance index at the coastal waters of Taruy Village, East Seram in May 2023. Methods: The ecological data of marine gastropods using line transect method in which was perpendicular to the coastline. Twelve transects were placed with the distance between transect is 50-m, and 5 meters between quadrates. Each gastropod in the quadrate was counted and preserved by 70% alcohol. Identification was done in Marine Science Laboratory, Faculty of Fisheries and Marine Science, Pattimura University, Ambon.Results: A total of 41 marine gastropods species found in this area, which is grouped into 5 order, 16 families, and 29 genera. Clypeomerus battilariaeformis has the highes ecological densisty and abundance. There were 19 species of marine gastropods which have lowest density and abundance. Species diversity of marine gastropods in this area is moderately categorized (H` = 2.97), while evenness index is highest (J`= 0.80), and there is no dominance species in the community (D = 0.08). Nineteen species of marine gastropods are rare species, and 13 species are common species.
Performance Analysis of Fine-Tuned ChatGPT-3.5 Chatbot for Alni Accessories E-Commerce Service Sugiarti; As'ad, Ihwana; Hilaluddin, Al
Open Global Scientific Journal Vol. 3 No. 2 (2024): Open Global Scientific Journal
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v3i2.70

Abstract

Background: The rapid advancement of artificial intelligence (AI) technology, particularly in language modeling, has driven the adoption of chatbots to support e-commerce services. Alni Accessories store faces challenges related to limited product information and slow customer service, which negatively impact user satisfaction.Aims: This study aims to analyze the performance of a fine-tuned ChatGPT-3.5-based chatbot to improve interaction quality and transaction efficiency on the e-commerce platform.Methods & Results: The evaluation process was carried out through a series of experiments, where the 13th experiment achieved the best results with a Training Loss of 0.3894 and a Validation Loss of 0.5787. The Training Mean Token Accuracy of 0.8799 and Validation Mean Token Accuracy of 0.7971 indicate the model’s ability to effectively learn language patterns. Furthermore, the Full Validation Loss of 0.6242 and Full Validation Mean Token Accuracy of 0.8122 demonstrate the model’s strong generalization capability. The independent t-test produced a p-value of 0.0001, confirming a statistically significant difference in transaction response time between the old system and the new system. The findings of this study show that the fine-tuned ChatGPT-3.5 chatbot not only accelerates services and improves product information accuracy but also holds great potential for implementation in other sectors such as education and healthcare.

Page 4 of 4 | Total Record : 38

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