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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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Simulation of Cellular Network Model by Integer Programming Agustina Pradjaningsih
Jurnal ILMU DASAR Vol 10 No 2 (2009)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

 Integer programming is a particular form or variety of the linear program, in which one or more of its values in the solution vector have integer. Integer programming can be applied on the network analysis and telecommunication. In this paper, integer programming is used to solve the problems of optimizing the route between cell i and HUB (Home Unit Base) j so that the cost for making a network model, especially cellular network, can be minimized.
Influence of Nd Substitution for Ca on Formation of 2223 Phase in the Superconductors (Bi,Pb)-Sr-Ca-Cu-O System: (Bi1.4Pb0.6)Sr2(Ca2-xNdx)Cu3O10+δ M . Sumadiyasa Sumadiyasa
Jurnal ILMU DASAR Vol 8 No 1 (2007)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

The influence of Nd substitutions for Ca on formation of 2223 phase in the superconductors (Bi,Pb)-Sr-Ca-Cu-O system : (Bi1.4Pb0.6)Sr2(Ca2-xNdx)Cu3O10+δ has been studied. Samples were made by solid state reaction methods, with sintering temperature at 860oC for 40 hours continuously in air atmosphere. From the XRD characterization it is revealed that the samples are poly crystals and the volume fraction of Bi-2223 phase is less than 45%. All of samples show Meissner effect weakly on 77 K, which is indicate that in the samples has formed few superconducting high-Tc phase. This result is in accords with of the resistivity as function of temperature measurement, show that the Tcon-set at 88 K - 107 K, which is range of the critical temperature (Tc) of the Bi-2212 phase and Bi-2223 phase. 
The 35,2 kda Hemaglutinin Protein of Pili’s Proteus mirabilis P355 as Adhesin on Rabbit’s Blader Epitelial Diana Chusna Mufida; Enny Suswati
Jurnal ILMU DASAR Vol 8 No 1 (2007)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

Urinary tract infection represent one of nosocomial infection in hospital. One of agent nosocomial urinary tract infection is Proteus mirabilis bacteria and common occur on patient with urinary catheter. Urinary tract infection with caused by P. mirabilis was persistent, very difficult to eradicated. Further more is caused some complication such as cystitis, acut and cronic pyelonephritis, kidney bladder stone, bacterimiae and sepsis. This bacteriae has same virulence factors. Fimbriae is one of it. In the adhesion test utilization of protein hemaglutinin pili 35.2 kDa resulted in the electroelusion which salluted in vesica urinaria epitelial by dose 400μl , 200μl, 100μl, 50μl, 25μl, 12,5μl and 0μl as control. Form adhesion test on vesica urinary epitelial that salluted with 35.2kDa protein pili we faund that the higher dose of protein can decrease bacteriae consentration at vesica urinary epitelial. This result was significant with r= 0.93 and p value = 0.005. This conclusion of this study is 35.2 kDa molecular weight protein pili of P. mirabilis P355 were adhesion protein.Keywords : hemaglutinin, pili, Proteus mirabilis, adhesin
Comparison of Yeast Resazurin Versus MTT Assay in vitro Methods For Determining Acute Toxicity of Halogenated Alkanes Oman Zuas
Jurnal ILMU DASAR Vol 9 No 2 (2008)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

Halogenated alkanes may have potentially human health effect as a result of their persistence, bioaccumulation and toxicity after their release from environment into the food chain and water products. It is leading to increase attention for legislation aimed at prevention and great pressure to reduce the production and emission rate of halogenated alkanes. Besides many research efforts to understand the fate and (eco)toxicological effects of the halogenated alkanes. Several investigators have used animal in vivo in conventional toxicity studies of halogenated alkanes. Nevertheless, experimental by using animal testing is always time and resource demanding. Thus, it is not deemed suitable for screening of large number of potential toxicants. The main objective of this work was to investigate the comparability of yeast resazurin assay versus MTT assay for determining in vitro acute toxicity (EC50) of halogenated alkanes. The MTT assay was conducted using Chinese Hamster Ovary (CHO cell), whilst yeast strains were used in yeast resazurin assay. The study demonstrates a comparability result to which halogenated alkanes is more toxic to CHO cell than to yeast cell.
Interaction Mechanism of Fe with Dietary Fiber Component at in vitro Gastrointestinal System Condition Leny Yuanita
Jurnal ILMU DASAR Vol 9 No 2 (2008)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

The aim of the research was to describe the interaction mechanism of Fe with yard long bean dietary fiber macromolecules at gastrointestinal system in-vitro, through the combination of acidity and boiling time. The research based on the factorial experimental design, with two independent variables, i.e. acidity medium (pH 3, 4, 5, 6, 7)and boiling time (0/raw, 5, 20, 35 minutes). Dependent variables were iron binding percentage, effective stability constants (Keff), and adsorption constants (Kads). Scatchard and Langmuir graph methods through Keff and Kads were then applied to determine the mechanism of iron interaction. The results of the research showed that the highest binding Fe by dietary fiber at pH 7- raw, and lowest at pH 3- boiling time 35 minutes. The iron binding pattern by dietary fiber at gastrointestinal system is through formation of complex compound that more prominent than physically adsorption, and involved two types of specific binding sites, one of which showed a higher affinity than the other.
Effectiveness of Added L-Ascorbyl Palmitate Antioxidant Synthezed Enzymatically in Coconut Oil Sutarno Sutarno; Yateman Arriyanto; Arief Budyantoro
Jurnal ILMU DASAR Vol 10 No 1 (2009)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

Research on effect of NaOH/Coal Fly Ash ratio in faujasite synthesis to faujasite crystallinity has been conducted. Faujasite synthesis has been conducted by destructed coal fly ash using sodium hidroxide (NaOH) with NaOH/Coal Fly Ash ratio = 1.0;1.2; 1.5; 2.0; 2.5 and 3.0 (w/w) on the solid phase. The solid mixtures cured at 550 oC for 1 h and followed by coolling process. Addition of distilled water to the solid mixtures and agitation for 24 h were done until we have slurry. The slurry kept on bomb autoclave and hydrothermal reaction has done at 100 oC for 72 h. The solid products are dried on oven and characterized using XRD. Al and Si were analyzed using UV-Vis spectroscopy method. The Faujasite has been produced by this research using of NaOH/Coal Fly Ash ratio ranging from 1 to 1.5 ratios (w/w). The range of NaOH/Coal Fly Ash ratio from 2 to 3 ratio (w/w) gave hidroxysodalite as hydrothermal product. The best ratio was by 1,2 NaOH/Coal Fly Ash ratio (w/w), it showed the highest crystallinity of faujasite and Si/Al ratio of Faujasite was higher than others. This research concluded that the high concentration of OH- on the hydrothermal system can transform faujasite to hydroxysodalite.
Effectiveness of Added L-Ascorbyl Palmitate Antioxidant Synthezed Enzymatically in Coconut Oil Tri Agus Siswoyo; Martiyas Pujirahayu
Jurnal ILMU DASAR Vol 10 No 1 (2009)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

L-ascorbyl palmitate (AsA-Pal-Enz) was synthesized by using the immobilized lipase from Aspergillus niger. The antioxidative activity of AsA-Pal-Enz was investigated in coconut oil at different temperatures within a range of 30(RT)-120oC. The effectiveness of AsA-Pal-Enz in coconut oil was monitored by the rate of formation of hydroperoxides, conjugated dienes (K232) and decomposition of hydroperoxides (K270). Samples in storage experiments were periodically removed and analyzed for peroxide value, K232, K270 and radical scavenging activity (DPPHr). Application of AsA-Pal-Enz have markedly reduced the rate of peroxidation in coconut oil during incubation time at RT, 60 and 80oC but at 120oC the rate of peroxidation slightly increased. It has shown that the effectiveness of AsA-Pal-Enz antioxidant in coconut oil was strongly depend on temperature and the time of incubation.
The Use of Nata de Coco Membrane as Biosensor Material Tri Mulyono; Asnawati Asnawati; Indra Noviandri; Buchari Buchari
Jurnal ILMU DASAR Vol 8 No 2 (2007)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

Nata de coco has been characterized as filter toward glucose solutions. Standard nata de coco membrane can not be used as membrane because of variations of thickness. It has unequal weight if it was made thinner. Based on its character, nata de coco had been made in various incubation times. Three days incubation time membrane have passed up 76.84 % glucose, 61.15  Lm -2hr -1 flux/permeability. In Low concentration, it’s produced permeate 87% and decrease in increasing concentration. Structures of membrane morphology showed that existence of bovine serum albumin (BSA) in glucose solution possibility didn't influence determination of glucose in blood.
Data Non-normality on AMMI Models: Box-Cox Transformations Alfian Futuhul Hadi; Halimatus Sa'diyah; I Made Sumertajaya
Jurnal ILMU DASAR Vol 8 No 2 (2007)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

AMMI (Additive Main Effect Multiplicative Interaction) model for interactions in two-way table provide the major mean for studying stability and adaptability through genotype × environment interaction (GEI), which modeled by full interaction model.  Eligibility of AMMI models depends on that assumption of normally independent distributed error with a constant variance.  In the case of non-normal data distribution, the appropriateness of AMMI model is being doubtful. Transform the observation by power family of Box-Cox transformation is an effort to handle the non-normality. AMMI model then can be applied to the transformed data appropriately following by the use of ordinary least square for estimating parameters.  This approach is investigated by applying them to (i) a count data of pest population of Poisson distribution, which came from a study of leave pest in soybean genotype, and to (ii) a study of rice genotype stability of filled grain per panicle (Binomial data).  One must be carefully considered what the meaning of the transformation in the AMMImodels and Biplot AMMI.
A Study of Solid-Liquid Extraction with HF And HNO3 as Solvent for Determination of Cr and Cu in the River Sediment near the Muria Nuclear Power Plant Imelda Fajriati; Malawati Rizkiyah; Muzakky Muzakky
Jurnal ILMU DASAR Vol 12 No 1 (2011)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

A Study of solid-liquid extraction for determination of Cr and Cu in the river sediment near the Muria Nuclear Power Plant has been studied. The river sediment assayed is in Kancilan, Balong, Suru, Dombang, and Wareng rivers. A study of solid liquid extraction focus on the optimum condition of extraction such as: concentrations of HF and HNO3 as are solvent, the extraction time, the accurate of this method; and comparing HF+ HNO3 solvent ability with HNO3 4N + HCl 0.7N and HCl 0.5N in extracting Cr and Cu in the river sediment. Determination of Cr and Cu concentration uses Atomic Absorpton Spectrometry. The research result shows that the optimum condition of extraction obtained in HF and HNO3 concentrations is 40% and 65% v/v respectively; and the extraction time is 5 hours. This research method shows good accuracy that is 84.810 % and 102.461 % for Cr and Cu respectively. In comparing the solvent ability to extract metal, it is obtained that HF 40% + HNO3 65% solvent is the best solvent in Cr metal extraction, whereas HNO3 4N + HCl 0.7N solvent is the best solvent in Cu metal extraction from the river sediment sample.

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