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INDONESIA
Jurnal Ilmu Dasar
Published by Universitas Jember
ISSN : 24425613     EISSN : -     DOI : https://doi.org/10.19184/jid.v24i2.36657
Core Subject : Education, Engineering,
Control & Systems Engineering Mathematics
Jurnal ILMU DASAR (JID) is a national peer-reviewed and open access journal that publishes research papers encompasses all aspects of natural sciences including Mathematics, Physics, Chemistry and Biology. JID publishes 2 issues in 1 volume per year. First published, volume 1 issue 1, in January 2000 and avalaible in electronically since 2012 with ISSN 1411-5735 (Print) and avalaible in electronically since 2012 with ISSN 2442-5613 (online). Jurnal ILMU DASAR is accredited SINTA 3 by the Ministry of Education, Culture, Research, and Technology of the Republic of Indonesia (Kemendibukristek) No. 152/E/KPT/2023 (September 25, 2023), Ministry of Research, Technology and Higher Education of the Republic of Indonesia (RISTEKDIKTI), No. 200/M/KPT/2020 (December. 23, 2020). All accepted manuscripts will be published worldwide JID has been indexed in DOAJ, Dimension, OCLC WorldCat, PKP Index, Crossref, Google Scholar, Base, Garuda, and OneSearch. JID have been collaborated in KOBI-ID (Konsorsium Biologi Indonesia) and HKI (Himpunan Kimia Indonesia) since 2017.
Arjuna Subject : Matematika - Kontrol dan Optimasi
Articles 415 Documents
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The Application of Cows Rumen for Electricity Generation Through The Implementation of A Ceramic-Based Microbial Fuel Cell System Mulyono, Tri; Hutamia, Diah Meirendi; Rofi’i, Imam; Misto, M.; Nugroho, Agung Tjahjo; Hariadi, Yuda Cahyoargo
Jurnal ILMU DASAR Vol 25 No 1 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i1.44448

Abstract

The growth in population is not adequately matched by the corresponding increase in energy demand. The imperative for prioritizing the exploration of alternative energy sources that possess attributes of safety, affordability, and ample access to raw materials cannot be overstated. An energy source with significant potential is a microbial fuel cell (MFC)-based energy source. This study aims to investigate the utilization of cow rumen as a substrate and source of nutrition in the bioenergy system of microbial fuel cells (MFCs). The present study aims to investigate the impact of substrate concentration and bacterial incubation duration derived from bovine rumen bacteria on the attainment of optimal power density. The research employed a Dual Chamber Microbial Fuel Cell (MFC) device using a Proton Exchange Membrane (PEM) constructed from ceramic materials. Daily observations were conducted over a period of 30 days. The performance of MFC was assessed utilizing the polarization technique. The findings indicated that altering the proportion of bovine rumen bacterial substrates and the duration of bacterial incubation had an impact on the power density seen in the Microbial Fuel Cell (MFC) system. The optimal conditions were attained when the substrate concentration reached 3640 ppm and after 7 days, resulting in a maximum power density of 864 mW/m2.
Conversion of LDPE Plastic Oil to Gasoline by Supercritical Water Liquefaction Elyana, Enggar Ira; Febriyanti, Febriyanti; Rohim, Fathur; Rusdy, Rafael Arthorito; Sari, Diva Luckyta; Juwono, Hendro
Jurnal ILMU DASAR Vol 25 No 1 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i1.44150

Abstract

LDPE (Low Density Polyethylene) is one of the plastic waste that is often found in the surrounding environment. Based on data from the National Waste Management Information System (SIPSN) in 2022, waste in Indonesia reached 17.834.071 tons/year with 18.5% being plastic waste. Plastic waste management generally uses recycling. However, recycling plastic waste is not efficient enough in tackling plastic waste in Indonesia. Recently, a promising alternative recycling method for the future is pyrolysis, a process to convert plastic into fuel oil. However, the pyrolyzed oil still contains impurities that reduce the quality of the oil. As an effort to improve the quality of pyrolysis oil, the author proposes the addition of zeolite catalyst in the pyrolysis process followed by the Supercritical Water Liquefaction (SWL) method. The zeolite catalyst aids the degradation process thereby accelerating the reaction rate. The SWL method is able to convert plastic waste into low molecular weight chemicals. The results obtained will be analyzed by gas chromatography mass spectroscopy (GC-MS) to determine the length of the carbon chain in the sample. Based on the chromatography data, it is found that the number of peaks and retention times show carbon chains ranging from C8-C12, from these results it can be identified that the sample is included in kerosene or kerosene compounds. After the SWL process, the percentage of kerosene and diesel is reduced to 11% gasoline. So the Supercritical Water Liquefaction process is proven to break down long hydrocarbon chains into lighter ones.
Antibacterial Test of Kedondong Hutan Leaf (Spondias pinnata) Against Salmonella typhi Rangga, Febby Alvanda; Amarantini, Charis; Budiarso, Tri Yahya
Jurnal ILMU DASAR Vol 25 No 1 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i1.34622

Abstract

Kedondong hutan (Spondias pinnata) is a plant belonging to the Anacardiaceae family, plant that grows a lot in the Sulawesi area, one of which is in the Poso area, Central Sulawesi. The surrounding community uses this plant as a traditional food preparation which is often called the "Arogo Onco" by the community. Kedondong hutan contains active compounds that have the potential as antibacterial, namely flavonoids, saponins and tannins. The purpose of this study was to determine the potential of forest kedondong leaves in inhibiting the growth of Salmonella typhi bacteria. The extraction process was done the decoctation method using aquadest and while the antibacterial test was done using the diffusion method against three bacterial strains namely Salmonella typhi BPE 127.1 MC, BPE 122.4 CCA and NCTC 786. The results showed that the leaf extract of kedondong hutan (Spondias pinnata) contained flavonoids, saponins and tannins with the results of the analysis of total flavonoids 1514,9 mgQE/g, saponins 0.613% and tannins 8,94 mgTA/g. The results of the antibacterial test showed the greatest inhibitory power at a concentration of 100%. Salmonella typhi BPE 127.1 MC, BPE 122.4 CCA, NCTC 786, was the inhibition zone 17.67±0.58 mm, 15.67±0.58 mm and 20.33±0.58 mm were included in the category of strong inhibition zone.
Design Smart Installation Household Electricity Using Solar Panels 600 Watts on Grid Capacity Nasution, Rahmatsyah Handayani Ramadhan; Salsabilla, Annisa; Ridho’i, M. Fachmi; Murniati, Riri
Jurnal ILMU DASAR Vol 25 No 1 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i1.43717

Abstract

Energy security plays an important role, especially in the modern and digital era which continues to increase in use. The availability of renewable energy sources is very abundant in tropical countries of Indonesia, especially solar energy sources that can be used to meet electricity needs on a household scale without worrying about limitations and pollution. This study aims to design electrical installations using solar panels with an autonomous drive system following Arduino uno-based sunlight with a capacity of 600 watts on-grid to reduce the cost burden of PLN and reduce air pollution. The addition of Arduino uno autonomous devices plays a role in increasing the efficiency of solar radiation received thereby increasing the output power of the installation. The result of this study is the design of a power plant installation with a solar cell with a capacity of 600 watts with 13 50-watt monocrystalline PV solar modules with supporting components, such as a 1000-watt inverter, and an efficiency device in the form of an Arduino uno-based autonomous drive system. This research produces data on the benefits obtained by using this tool amounting to Rp. 12.500 / month for 20 years of efficiency in using solar panels.
Interleukin-6 as an Indicator for Acute Toxicity of DBL2β-PfEMP1 Recombinant protein as a Peptide-based Malaria Vaccine Candidate Sari, Leny Yulia Widia; Sulistyaningsih, Erma; Siswoyo, Tri Agus
Jurnal ILMU DASAR Vol 26 No 1 (2025)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v26i1.48709

Abstract

Malaria caused by Plasmodium spp is an important health problem, and vaccination could be essential for disease prevention. One potential protein candidate is the Duffy binding-like 2β (DBL2β)-Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1). The protein is responsible for malaria pathogenesis by mediating binding to intercellular adhesion molecule-1 (ICAM-1), a receptor on the host cells. This study aimed to investigate the acute toxicity of the DBL2β-PfEMP1 recombinant protein as a basis for developing a peptide-based malaria vaccine based on body weight and interleukin-6 (IL-6) concentration. The study used male and female Wistar rats, which were divided into treatment and control groups after two weeks of acclimatization. Rats in the treatment group were injected with 750 µg DBL2β-PfEMP1 recombinant protein, and the control group was injected with NaCl 0.9%. Any indications of clinical toxicity symptoms were closely monitored within 4 hours of injection up to 24 hours. Observations were conducted daily for 14 days and included body weight and toxicity symptoms such as rising fur, tremors, salivation, diarrhea, weakness, draping, excitability, twitching, and death. Blood was collected on days 5, 7, and 14 for IL-6 examination using the ELISA method. Rats were euthanized on day 14. Data were analyzed using an ANOVA test. There was no significant weight loss as well as weight gain and toxicity symptoms during 14 days after treatment in all groups. There was an increase IL-6 levels on day 14 in all groups. However, statistical analysis did not show a significant difference between the control and treatment groups (p>0.05). This study showed that the DBL2β-PfEMP1 recombinant protein has no acute toxicity in Wistar rats, implying its safety and potential as a peptide-based malaria vaccine.
Improved of Multiobjective Fuzzy Probabilistic Solid Transportation Models in Transportation Systems Susanti, Eka; Dwipurwani, Oki; Dewi, Novi Rustiana; Prahesti, Wanodya Eka; Safira, Indri Yune
Jurnal ILMU DASAR Vol 25 No 2 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i2.27940

Abstract

Transportation activities are stages in the product distribution system. The purpose of the transport system is to minimize the total cost. If there is more than one objective function and consider more than one type of vehicle, it is called a multiobjective solid transportation problem. In some cases, the parameter transportation model is under uncertainty. A probabilistic and fuzzy approach can be used. This research introduces a probabilistic fuzzy multiobjective solid transportation model where the source, destination and vehicle parameters follow the Pareto distribution. A triangular fuzzy number expresses the coefficient of the objective function. The obtained model is applied to the problem of the metal crate transportation system. There are two objective functions; the first is the objective function to minimize the total cost. The second is the objective function to minimize the total transportation time. Three types of vehicles are considered: HDL, Engkel and Wingbox. The result is that the total cost is Rp. 3836595, and the total time is 757.245 minutes or 13 hours.
Growth of Tilapia (Oreochromis niloticus Linn.) Feeded by Fermented Coconut Pulp with Aspergillus niger Sinaga, Lia Resa; Yanti, Ari Hepi; Setyawati, Tri Rima
Jurnal ILMU DASAR Vol 25 No 2 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i2.33906

Abstract

Coconut pulp fermented with Aspergillus niger can be used as an alternative ingredient in the manufacture of tilapia (O. niloticus) feed. This study aims to determine the nutritional content of fermented coconut dregs and the growth of tilapia after being fed a feed made from fermented coconut dregs with A. niger. Tilapia (O. niloticus) feed is made by mixing fermented coconut pulp and artificial feed. The combination of feed used in this study was A (control, 100% artificial feed), B (10% coconut pulp: 90% artificial feed), C (20% coconut pulp: 80% artificial feed), D (30% coconut pulp : artificial feed 70%), E (coconut pulp 40%: artificial feed 60%) and F (coconut pulp 50%: artificial feed 50%). Based on the proximate analysis that has been carried out, it shows that treatment B has the most optimal nutritional content for tilapia (O. niloticus). The nutritional content of feed B was 7.26% water content, 7.19% ash, 23,21% crude protein, 8,93% crude fat and 16,23% crude fiber. The results showed that treatment B gave the most significant growth rate and relative growth rate of 0.77 g/day and 3.04%.
Effect of Drought Stress on Morphology and Chlorophyll Content of Sorghum (Sorghum bicolor L. Moench) Rahardhianto, Arsetyo; Raharjo, Sulistyo Yusuf; Nugroho, Sandi Luqman; Purwinto, Rahmanaji Setyo; Soleh, Mohamad Badrus; Sugiharto, Bambang
Jurnal ILMU DASAR Vol 26 No 1 (2025)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v26i1.32122

Abstract

Sorghum is a type of cereal plant that easily adapts to stressful environmental conditions. Sorghum has many benefits as it can be used as food, feed, and energy sources, making it a promising crop for development on dry land in Indonesia. Drought impacts plants during their growth process, causing physiological and biological changes. This study aims to determine the effect of drought stress on the morphology and chlorophyll content of sorghum plants. Preliminary research was conducted by planting three varieties of sorghum (Numbu, Super 1, and Super 2). Subsequent planting involved selecting the variety most resistant to drought based on data analysis of several parameters. The basic design used in this experiment was a completely randomized design (CRD) with one factor: the level of drought stress, which had four levels -no drought stress as a day 0 (control) and drought stress for 3, 6 and 9 days by withholding water. The results showed a decrease in the total chlorophyll content of the leaves over time. Drought stress for 6 and 9 days without watering resulted in water content dropping below 25%, indicating severe drought stress and disrupting plant growth. Severe drought stress was characterized by low soil and leaf water content, yellowing and curling of the leaves.
Classification of Malignancy of Lung Cancer Using Backpropagation Algorithm on CT-Scan Images Putri, Evi Pania; Nurhasanah, Nurhasanah; Wahyuni, Dwiria; Hasanuddin, Hasanuddin; Adriat, Riza; Arsyad, Ya' Muhammad
Jurnal ILMU DASAR Vol 25 No 2 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i2.39054

Abstract

In this study, we investigate the classification of lung cancer CT scan images based on malignancy level using a backpropagation artificial neural network (ANN). Lung cancer is a deadly disease characterized by the growth of abnormal lung cells. The proposed method involves preprocessing to enhance image quality, followed by feature extraction using the Gray Level Co-occurrence Matrix (GLCM) method with angle variations of 0°, 45°, 90°, 135°, and d=1. The extracted features include energy, contrast, correlation, and homogeneity. The energy value range in malignant cancer is 0.27 to 0.81, while in benign cancer it is 0.26 to 0.73. The contrast in benign cancer ranges from 1.38 to 11.87, while in malignant cancer it is 1.47 to 13.67. The image correlation for malignant cancer is between 0.63 to 0.94, while for benign cancer it is 0.69 to 0.96. Homogeneity in malignant cancer has a value range between 0.67 to 0.91, while in benign cancer it ranges from 0.70 to 0.92. The classification of lung cancer malignancy is restricted to benign and malignant levels using a network architecture of [4 10 2], maximum iteration of 100000, and learning rate of 0.001. The accuracy of the testing data from the ANN is between 90% and 100%. These results demonstrate the effectiveness of the GLCM method and backpropagation algorithm in accurately classifying the malignancy level of lung cancer, which could aid in the early detection and treatment of the disease.
Antibacterial Activity of Plumeria alba L. Leaf Ethanol Extract Against Propionibacterium acnes Komala, Oom; Srinarayani, Kadek; Utami, Novi Fajar
Jurnal ILMU DASAR Vol 25 No 2 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v25i2.36858

Abstract

The Plumeria alba L. leaves are empirical as an alternative to treatment as an antibacterial to Propionibacterium acnes, Staphylococcus aureus and Salmonella typhi, as aromatherapy for the repellant and the denture cleanser of the growth of the Candida albicans in the synthetic nylon base. It has been known to contain alkaloids, flavonoids, saponin, tannin, and fenol that have activity as antibacterial. The study aims to determine the antibacterial activity and to identify the best concentration of 70% ethanol extract of P. alba L. leaf to P. acnes. The method used in extraction is a maceration with 70% ethanol solvent which is concentrated using a rotary evaporator. Extract of ethanol 70% of P. alba L. leaves was used to determine antibacterial activity by determining the Minimum Inhibitory Concentration (MIC) using solid dilution and the width of inhibition area by diffusion method of paper discs at concentrations of 30%, 40%, and 50%. Phytochemical tests were carried out of alkaloid, flavonoid, saponin, tannin and fenol qualitatively. The result showed that ethanol 70% extract of P. alba L. leaf had antibacterial activity against P. acnes with MIC at 25% concentration. The best antibacterial activity from ethanol extract 70% of P. alba L. leaves at a concentration of 50% with inhibitory, namely 9.4 mm. The P. alba L. leaves phytochemical test contains alkaloids, flavonoids, saponins, tannins, and fenol. The conclusion ethanol extract 70% of P. alba L. leaves have the antibacterial activity against P. acnes.

Page 39 of 42 | Total Record : 415

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