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Al-Ulum
ISSN 2477-4731 · UPT Publikasi dan Pengelolaan Jurnal Universitas Islam Kalimantan Muhammad Arsyad Al Banjari · 224 artikel di indeks
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Artikel Jurnal
ON STOCHASTIC LINEAR PROGRAMMING AND ITS APPLICATION IN AGRO-PASTORALISM
Stochastic linear programming (SLP) is a robust method for optimization under uncertainty. This study applies SLP to livestock feed formulation, aiming to minimize costs while meeting nutritional requirements with probabilistic constraints. The model considers ten ingredients Ai with costs ci and…
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Artikel Jurnal
ANTITUBERCULOSIS POTENTIAL OF Caesalpinia sappan BIOACTIVE COMPOUNDS USING IN SILICO APPROACH
Caesalpinia sappan has been reported to possess a plethora of pharmacological effects, including immunomodulatory, antibacterial, astringent, and antitumor properties. The present study set out to ascertain the benefits of the active compounds Caesalpinia sappan in terms of their ability to inhibit…
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Artikel Jurnal
DESIGN AND USABILITY EVALUATION OF A MOBILE TOURISM APPLICATION BASED ON USER-CENTERED DESIGN APPROACH
Mobile tourism applications play a crucial role in supporting travelers’ information search and trip planning; however, many existing systems still suffer from usability limitations that affect user satisfaction and continued use. This study aims to design and evaluate a mobile tourism application…
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Artikel Jurnal
ANALYSIS AIRCRAFT COMPONENTS INDUSTRY RECOVERY IN INDONESIA: INTEGRATION OF DELPHI - INTERPRETIVE STRUCTURAL MODELING (ISM)
This study aims to analyze key factors for industrial recovery by identifying and modeling important factors for the recovery of the Indonesian aircraft component industry using a qualitative descriptive statistical method approach with eight experts. The Delphi method and Interpretive Structural…
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Artikel Jurnal
PHYTOCHEMICAL SCREENING AND DPPH ANTIOXIDANT ACTIVITY OF Cleome viscosa FRACTIONS, A TRADITIONAL MEDICINAL PLANT FROM SOUTHEAST SULAWESI
Cleome viscosa is a traditional medicinal plant known to contain bioactive antioxidant compounds. Accordingly, this study aimed to conduct phytochemical screening and evaluate the antioxidant activity of its methanolic extract and solvent fractions using the DPPH radical scavenging method…
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Artikel Jurnal
CHARACTERIZATION OF BIODEGRADABLE FOAM FROM OIL PALM EMPTY FRUIT BUNCH CELLULOSE, CASSAVA STARCH, AND POLYVINYL ALCOHOL
Styrofoam is widely used for food packaging, but its poor degradability and harmful compounds pose serious environmental and health concerns. This study developed biodegradable foam from oil palm empty fruit bunch (OPEFB) cellulose and cassava starch through thermopressing, with polyvinyl alcohol…
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Artikel Jurnal
SYNTHESIS OF SILVER NANOPARTICLES (AGNPS) WITH SOURSOP LEAF EXTRACT (Annona muricata L.) AS A BIOREDUCTANT
Conventional chemical synthesis of silver nanoparticles (AgNPs) can generate hazardous waste, encouraging the development of greener alternatives such as green synthesis using natural materials. This study analyzes the formation and characteristics of AgNPs from soursop leaf extract (Annona…
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Artikel Jurnal
ON HILBERT-SCHMIDT OPERATORS BETWEEN NON-SEPARABLE HILBERT SPACES
We first study Hilbert–Schmidt operators between non-separable Hilbert spaces. We employ concepts such as summable families in normed spaces, the packet summation theorem, and Hilbert bases. We define Hilbert–Schmidt operators and investigate the structure of the Hilbert space (HS(X,Y))…
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Artikel Jurnal
SYNTHESIS AND CHARACTERIZATION OF TERNARY NiO-Fe2O3-CuO NANOCOMPOSITE FOR PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE
In this study, co-precipitation method was employed to successfully synthesize a ternary NiO-Fe2O3-CuO nanocomposite, which was then utilized for the photocatalytic degradation of the methylene blue dye. The XRD confirmed the presence of the NiO, Fe2O3, and CuO phases, with an average crystallite…
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Artikel Jurnal
IN SILICO PHARMACOKINETIC AND MOLECULAR DOCKING STUDY OF VOLATILE COMPOUNDS FROM Parachlorella kessleri AUP5 AS POTENTIAL α-AMYLASE INHIBITORS
Diabetes mellitus (DM) is a chronic metabolic disorder with a rapidly increasing global prevalence. The purpose of this study was to determine the potential of volatile compounds from microalgae Parachlorella kessleri AUP5 as potential α-amylase inhibitors through in silico approach. Analysis of…
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Artikel Jurnal
BEHAVIOR-BASED ANOMALY DETECTION IN ONLINE ATTENDANCE SYSTEMS USING A GENETIC ALGORITHM–OPTIMIZED ISOLATION FOREST
Digital attendance systems are vulnerable to anomalous behaviors that may reduce attendance integrity and reliability. This study proposes an anomaly detection approach using Isolation Forest optimized with a Genetic Algorithm to improve anomaly detection performance in digital attendance…
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Artikel Jurnal
HYDROGEOCHEMICAL CHARACTERISTICS AND SEAWATER INTRUSION OF SHALLOW GROUNDWATER IN MENGKIRAU, KEPULAUAN MERANTI, RIAU, INDONESIA
Shallow groundwater is the primary source of freshwater in coastal areas and small islands, but is highly vulnerable to seawater intrusion. This study aimed to determine the hydrogeochemical characteristics of shallow groundwater and the extent of seawater intrusion in the study area. Groundwater…
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Artikel Jurnal
SPI-BASED DROUGHT PREDICTION: COMPARING ARIMA AND MARKOV CHAIN MODELS
Drought poses severe risks to agricultural sustainability in climate-vulnerable regions. This study compares AutoRegressive Integrated Moving Average (ARIMA) and Fuzzy Time Series–Markov Chain (FTS-MC) models for multi-timescale Standardized Precipitation Index (SPI) forecasting in the Slahung…
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Artikel Jurnal
COST ANALYSIS OF RATS CONTROL IN SUPERIOR RICE CROPS IN BABIRIK DISTRICT, HULU SUNGAI UTARA REGENCY
This study aims to find out the method of controlling rat pests on rice plants, compare costs between methods, and identify problems faced by farmers in the Asa Tamara Farmers Group, Babirik District, North Hulu Sungai Regency. The study used the purposive sampling method on 8 respondents who met…
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Artikel Jurnal
BACTERIOSTATIC ACTIVITY OF Apium graveolens ETHANOLIC EXTRACT AGAINST Staphylococcus aureus AND Escherichia coli
Bacterial resistance to synthetic antibiotics has intensified the need for natural antimicrobial alternatives. This study evaluated the antibacterial activity of 96% ethanolic extract of celery stalk (Apium graveolens var. dulce) against Staphylococcus aureus and Escherichia coli using the broth…
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Artikel Jurnal
MOLECULAR DOCKING STUDY OF BENZOYLATED QUERCETIN DERIVATIVES AS POTENTIAL HER2 INHIBITORS FOR BREAST CANCER THERAPY
Human Epidermal Growth Factor Receptor 2 (HER2) overexpression contributes to breast cancer progression, while the effectiveness of lapatinib is often limited by drug resistance. This study evaluated the inhibitory potential of benzoylated quercetin derivatives against HER2 (PDB ID: 3PP0) using…
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Artikel Jurnal
EFFECT OF AGE AT FIRST MATING ON BIRTH WEIGHT, DAILY WEIGHT GAIN, AND WEANING WEIGHT IN ETAWA CROSSBRED (PE) GOAT KIDS
This study evaluated the effect of first mating age on birth weight, daily weight gain, and weaning weight in Etawa crossbred (PE) goat kids. Twenty female and four male goats were divided into four groups (5:1). Group P1 consisted of 7‑month‑old goats with an average body weight of 28.51 ± 1.32…
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Artikel Jurnal
CULTIVATION ANALYSIS OF LONG BEAN (Vigna sinensis) AT PAK IMAM’S FARM IN SEI ASAM VILLAGE, KAPUAS HILIR DISTRICT, KAPUAS REGENCY
Agriculture remains a crucial sector for rural livelihoods, and long bean cultivation is one of the important commodities in Central Kalimantan. This research was conducted on Pak Imam’s land in Sei Asam Village, Kapuas Hilir District, to examine cultivation techniques, cost structure, and economic…