334 hasil
Menampilkan 1–20 · 0,10 detik · RSS
Jurnal Ilmu Dasar
ISSN 1411-5735 · Fakultas MIPA Universitas Jember · 334 artikel di indeks
-
Artikel Jurnal
Validation of Satellite-Based Rainfall Estimates from CHIRPS, IMERG, and GSMaP against SYNOP Rain Observations in Balikpapan
Precise precipitation records are essential in supporting climate monitoring and extreme weather early warning systems in coastal regions such as Balikpapan. Driven by the need to provide more accurate and representative rainfall information, the primary objective of this research is to assess the…
-
Artikel Jurnal
Interacting Proteins Of Heat Shock Factors (HSF) and Heat Shock Protein 90 (HSP90) in Theobroma cacao L. Through In Silico Study
Cocoa (Theobroma cacao L.) plants are sensitive to drought, so drought stress can reduce cocoa bean production. Heat stress can trigger gene expression as plant defense. Heat Shock Factors (HSF) play key role in responding to plant stress. HSF will regulate other proteins such as HSP which function…
-
Artikel Jurnal
Optimizing Bonebolango Operational Bus Routes Using the Integer Nonlinear Programming Method
Public transportation plays an important role in supporting community mobility, especially in developing regions such as Bonebolango Regency. However, the management of routes and operational bus frequencies that has not yet been optimized often leads to inefficiency in service and increased…
-
Artikel Jurnal
Determination of Physical, Chemical and Microbiological Characteristics of Fresh Cow's Milk from Rembangan Jember Farm
Fresh cow's milk is a highly nutritious food product but is very susceptible to deterioration in its quality due to microbial activities and surrounding environmental factors. The objective of this research was to determine the physical, chemical, and microbiological characteristics of fresh cow's…
-
Artikel Jurnal
Insect Diversity Among Visitors to Chili Plants (Capsicum frutescens L.) in Suger Lor Village, Maesan District, Bondowoso Regency
Chili pepper (Capsicum frutescens L.) is a horticultural commodity with high economic value, whose productivity is strongly influenced by the presence of insects, acting as pests, predators, parasitoids, and pollinators. This study aimed to analyze the diversity and composition of insect visitors…
-
Artikel Jurnal
Protein Profile of Aedes albopictus Salivary Glands Obtained Through Human Landing Collection
The salivary glands of Aedes albopictus are known to contain various bioactive proteins that play important roles in the blood-feeding process, such as anticoagulants, immunomodulators, and platelet aggregation inhibitors. However, information about protein profile of Ae. albopictus salivary glands…
-
Artikel Jurnal
Comparative morphological description, morphometry, and coloration of the paper wasp species Polistes sagittarius and Polistes tenebricosus (Hymenoptera: Vespidae)
Paper wasps of the genus Polistes are widely distributed in tropical regions and play important ecological roles as predators of agricultural insect pests. Morphological and morphometric characters are important tools for species identification and taxonomic studies within this genus. This study…
-
Artikel Jurnal
Predicting Peak Ground Acceleration Using Distance and Intensity with a Random Forest Approach: A Case Study of the April 10, 2025 Bogor Earthquake
The prediction of Peak Ground Acceleration (PGA) is a crucial parameter in earthquake-resistant structural design, particularly in high-risk regions such as West Java, which are prone to potentially damaging earthquakes. This study aims to evaluate the relationship between epicentral distance…
-
Artikel Jurnal
Effect of Color Spectrum, Nitrogen Nanobubbles, Planting Chambers on Growth of Dendrobium sp. Plant
Sunlight emits light dispersed into a spectrum ranging from blue to red wavelengths. Blue light has a wavelength of 450–495 nm, while red light ranges from 620–750 nm and generates higher temperatures than normal light conditions. This study evaluated the effects of 2-iP, light spectra, and NBs N₂…
-
Artikel Jurnal
Spatiotemporal Characteristics and Hazard Mapping of Cloud-to-Ground Lightning in Jember Regency, Indonesia
Lightning is a common atmospheric hazard in tropical regions and poses significant risks to human activity and infrastructure. The aim of this research is to investigate the temporal and spatial characteristics of Cloud-to-Ground (CG) lightning in Jember Regency, Indonesia during 2025. The data…
-
Artikel Jurnal
Interaction of Cross-Equatorial Northerly Surge and Southerly Surge on Atmospheric Variability in Java, Indonesia
The Cross-Equatorial Northerly Surge (CENS) phenomenon contributes to increased convective activity and rainfall in the Indonesian Maritime Continent (IMC). However, studies on the interaction of CENS and the Southerly Surge (SS) on atmospheric variability in the region remain limited. This study…
-
Artikel Jurnal
Determination of the Trophic Level of the Antirogo River, Jember Regency, Using the Trophic Diatom Index (TDI)
The Antirogo River, a tributary of Bedadung River in Jember Regency, flows through agricultural and densely populated residential areas. Nutrient inputs from fertilizer runoff and domestic waste potentially increase the trophic status of this river. The purpose of this study was to determine the…
-
Artikel Jurnal
A Lattice Monte-Carlo Approach to Two Flavors PNJL Model
We extend the Monte Carlo PNJL framework by introducing nearest-neighbor interactions between fluctuating sub-volumes, resulting in a spatially structured lattice model. A two-dimensional implementation is developed and sampled using the Metropolis algorithm, together with several computational…
-
Artikel Jurnal
The Role of Hydrogen Peroxide as a Sterilant in Bioreactor Media for the Growth of Dendrobium sp Orchid Plantlets Incuded by O2 Nanobubbles
The sterilization process in tissue culture is carried out to avoid contamination, one of which can be done using hydrogen peroxide (H₂O₂). H₂O₂ has the main function as an oxidizer that kills fungi and bacteria. This study aims to identify the role of H₂O₂ as a sterilization agent in bioreactor…
-
Artikel Jurnal
Diversity of seven wild Zingiberaceae from Meru Betiri National Park, Indonesia
Zingiberaceae, the largest family within the order Zingiberales, comprises numerous species of economic and medicinal importance. However, members of this family often exhibit similar morphological characteristics, making species identification in their natural habitats challenging, particularly…
-
Artikel Jurnal
Optical Properties and Blue LED-Assisted Antifungal Activity of Green-Synthesized Silver Nanoparticles Against Candida albicans Biofilm
Green synthesis of silver nanoparticles (AgNPs) derived from plant extracts has become increasingly attractive because it utilizes renewable biological resources, minimizes the use of hazardous chemicals, and offers broad biomedical potential. In the present work, AgNPs were synthesized using…
-
Artikel Jurnal
Reliability Analysis of an Internet of Things-Based Methane and Carbon Dioxide Monitoring System in a Peatland Simulation
Real-time monitoring of methane (CH₄) and carbon dioxide (CO₂) in peatland simulation environments requires a reliable Internet of Things (IoT)-based monitoring platform. This study evaluated the reliability of an IoT-based gas monitoring platform through sensor response characterization…
-
Artikel Jurnal
Proteolytic Potential of Bacteria Associated with the Malaria Vector Anopheles vagus
Malaria remains a global health issue, including in Indonesia, with fluctuating case dynamics in Kulon Progo Regency. Vector-based malaria control requires an understanding of the microbiota associated with Anopheles vagus mosquitoes, particularly symbiotic bacteria that have the potential to…
-
Artikel Jurnal
Waste Paper Hydrolysis Analysis with Sulfuric Acid Catalyst using Response Surface Methodology
Paper waste can cause environmental damage, so paper waste processing must be carried out. Paper waste which is a lignocellulosic compound can be processed with acid hydrolysis process to produce cellulose degradation products. In this research, waste paper hydrolysis was carried out using sulfuric…
-
Artikel Jurnal
Partial Analysis of Probiotic Character of Lactic Acid Bacteria from the Intestines of Broilers Supplemented with Fish Protein Hydrolysate (FPH)
This study aims to analyze partial characteristics of probiotics lactic acid bacteria (LAB) from broiler intestines supplemented with fish protein hydrolysate (FPH) 2% (v/w) in feed. A total of 17 LAB isolates were successfully isolated and characterized morphologically and biochemically (catalase…