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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 15 Documents
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Search results for , issue "Vol 11 No 1 (2010)" : 15 Documents clear
Visualization of Iris Data Using Principal Component Analysis and Kernel Principal Component Analysis Ismail Djakaria; suryo Guritno; Sri Haryatmi Kartiko
Jurnal ILMU DASAR Vol 11 No 1 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

Principal component analysis (PCA) is a method used to reduce dimentionality of the dataset. However, the use of PCA failed to carry out the problem of non-linear and non-separable data. To overcome this problem such data is more appropriate to use PCA method with the kernel function, which is known as the kernel PCA (KPCA). In this paper, Iris dataset visualized with PCA and KPCA, that contains are the length and the width of sepal and petal. 
In Vitro Acitivities Test of Papaya Leaf Extract (Carica papaya. LINN) as an Antimalaria Agent Johanis F Rehena
Jurnal ILMU DASAR Vol 11 No 1 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

Based on WHO’s estimation, there are at least 300-500 million people in the world infected by Malarian disease every year, 110 million people show the symptom, and 2.7 million people died. People who suffer from malaria in Kairatu regency are 1.296 people. Therefore, the invention of Malarian medicines is hoped to provide new medicine with mechanism and potential target and safe for the society. The objective of this study is to find out the role of extracted papaya’s leaf Cibinong and Solo Variety as antimalaria. The method is laboratory experimental, which is the sample of papaya’s leaf about 400 gram taken from Kairatu regency Maluku Province. Parasite used is Plasmodium falciparum strain G2300. antimalaria activity test in vitro is done toward the result of extracted papaya’s leaf dissolved in DMSO then it is done on flat titer with 24 holes. With level of parasitemia 1% and hematokrit 5%, and then is counted the percentage of parasitemia and growth percentage. Antimalaria test result on papaya’s leaf Cibinong variety with probit program show the value of IC50, 2.7821nanog/ml and Solo variety of Papaya is IC 50, 2.14279, in other word, that cibinong veriety and solo in vitro is active as an antimalaria. 
Gametogenesis of Nypha Palm Worm Namalycastis rhodochorde (Polychaeta: Nereididae) Junardi Junardi; Tri Rima Setyawati; Edy Yuwono
Jurnal ILMU DASAR Vol 11 No 1 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

The Nypha Palm Worm Namalycastis rhodochorde has been used as bait for fishing in Pontianak. Culturing the worm is one potential effort for its commercialization as well as to overcome the overexploitation of the worm which also brings about the degradation of its natural habitat. Samples of the worm were collected from mangrove forest area in Sungai Kakap, West Kalimantan. Fresh sample of gametes from coelomic fluid were observed carefully under compound microscope to determine phase of gamete development. Oogenesis consisted of three consecutive stages namely immature, submature, and mature with ≤40 μm, 40<x<120 μm, and ≥120 μm in diameter, respectively. The spermatogenesis phases consisted of, spermatogonia, spermatid tetrad and spermatozoa. 
Seasonal Multivariat Time Series Forecasting On Tourism Data by Using Var-Gstar Model Dhoriva Urwatul Wutsqa; suhartono Suhartono
Jurnal ILMU DASAR Vol 11 No 1 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

This research intends to study a new approach VAR-GSTAR (Vector Autoregressive-General Space-Time Autoregressive) model for forecasting seasonal multivariate time series. The parameters of the model are estimated by Least Squares method. In this research, we also derive the asymptotic properties of the parameter estimator, which yield the consistency and multivariate normal asymptotes distribution. Based on those properties, we build the procedure for finding the best model in seasonal multivariate time series, and then apply it on the number of foreign tourists in Yogyakarta and Bali data. The result from VAR-GSTAR model is compared with the result from the standard multivariate time series. The comparison result demonstrates that the procedure of VARMA model can not carry out the seasonal lags on the order of the model. This problem can be handled by the VAR-GSTAR model. The interpretation of VAR-GSTAR model is more realistic than that of VARMA model, i.e. the number of foreign tourists in Yogyakarta depends on that in Bali, but not the opposite, whereas VARMA model yields the opposite result. Additionally, the result of forecast accuracy comparison on tourism data in Yogyakarta and Bali shows that VAR-GSTAR model give better forecast than VARMA model. 
Capability Increasing of Some Antibiotics for Eliminate Liberibacter asiaticus Bacteria to Find the Free-CVPD Citrus Seedling Siti Zubaidah
Jurnal ILMU DASAR Vol 11 No 1 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

Citrus Vein Phloem Degeneration (CVPD, is considered to be one of the most serious diseases of citrus, having been responsible for the loss of tens millions trees. It is caused by phloem-limited bacteria, Liberibacter asiaticus which are transmitted by citrus psyllids. The bacteria could be found in the budwood as the matter for producing seedling. The use of free-pathogen seedling for citrus plantation was the one of the disease control mechanism. Founding the way to eliminate CVPD bacteria from budwood to produce the free-pathogen seedling was the goal of this research. The study was also compared to the previously research. The research used budwood from L. asiaticus infected-Siem and healthy-Japansche Citroen (JC) which were detected by PCR (polymerase chain reaction). Before grafting, budwoods was soaked in penicillin, kanamycine, tetracyclin, and choramphenicol with concentration 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 ppm and time of soaking was 25 – 30, 40 – 45, and 55 – 60 minutes. The detection of L. asiaticus in the leaves of seedlings was done by PCR. The research showed that (1) penicillin from 400 ppm to 1000 ppm and tetracyclin from 300 ppm to 1000 ppm with time of soaking 25 – 30, 40 – 45, and 55 – 60 minutes, could eliminate the CVPD bacteria from budwood; (2) kanamycine could not eliminate the CVPD bacteria and causes phytotoxis in budwood; (3) choramphenicol could not eliminate the CVPD bacteria. The penicillin and tetracyclin results different with previously research, but kanamycine and choramphenicol not different with previously research. The information from this research supports that some antibiotics could eliminate the bacteria from budwood for producing the free-CVPD seedlings. 
Kinetics of Complex Reaction of Eugenol Hydrogenation to 2-Methoxy-4-Propylphenol in Pd/Y Catalyst Asep Kadarohman
Jurnal ILMU DASAR Vol 11 No 1 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

Eugenol and isoeugenol hydrogenations using Pt, Pd, Ni as a single or combined metal, that was supported on X and Y zeolite have been carried out. The experiment result showed that in hydrogenation reaction using metal that was supported on zeolite, eugenol is more easily hydrogenated than isoeugenol. Pd metal that was supported on Y zeolite as a catalyst in eugenol hydrogenation is more effective than Ni, Pt or combined metal (Pt,Pd,Ni/X). The highest conversion selectivity of eugenol hydrogenation is in 6% catalyst of Pd (10%)/Y that produced 98.24% of 2-methoxy-4- propylphenol. Kinetic of reaction is very important data that is needed in processing for industry scale, because kinetic can show how fast the starting material is converted into products. In this research, kinetic of the reaction was done by eugenol hydrogenation at 245oC with variation of time using Pd/Y catalyst. The result shows that eugenol hydrogenation is a complex reaction, because the reaction yields not only 2-methoxy-4-propylphenol as a main product, but also cis-isoeugenol and trans-isoeugenol as the side products. The reaction pathway of eugenol hydrogenation in Pd/Y catalyst is a combination of parallel and consecutive pathway and pseudo first order reaction with k = 0.5509.
A Lamp Controller via Missed Calls Based On The Microcontroller AVR AT90S2313 Jazi Eko Istiyanto; Andik Dwi Kuntoro
Jurnal ILMU DASAR Vol 11 No 1 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

Missed calls have a potential for low-cost control and monitoring of a remote instrumentation system as compared to SMS (Short-Message Service) and DTMF (Dual-Tone Multiple Frequencies). The design of an instrumentation system model in which a set of lamps can, remotely, be turned on/off just by issuing a set of unanswered calls and the programming of the AT90S2313 microcontroller to serve the purpose of controlling and status monitoring of a set of six lamps (AC bulbs) are presented in this paper. Two cellular phones are used: one as the calling phone, and the other as the receiving end (the transceiver). The transceiver is attached to the microcontroller circuitry. The calling phone issues two sets of RINGs and the transceiver is programmed to disregard any RING. The first set of RINGs is interpreted as a command to select one of the six lamps, then the second set of RINGs constitutes a command to turn the selected lamp on/off. This is possible because the cellular system records the number of RINGs before a call qualifies as a missed call.The system has successfully been built, tested, and proven to work well. The limitation is, apart from the GSM signal availability, the inability of the current system to verify/authenticate the calling phone number. 
Screening of Genomic Library of Soybean Cultivar Lumut by Using Peroxidase Gene from Arabidopsis thaliana as Probe Suharsono Suharsono; Teguh Juliyanto; Muhammad Jusuf
Jurnal ILMU DASAR Vol 11 No 1 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

Screening to genomic library of soybean cv. Lumut by using gene encoding for peroxidase (per) from A. thaliana as a probe has an objective isolate the whole gene of per from soybean. The probe was labeled by non-radioisotope alkalin phosphatase. Screening was done by two steps. The first, screening was done to 105 recombinant lambda phages containing genome of soybean cv. Lumut. After southern hybridization, positive signal of plaques were isolated and screened for the second time. After second screening, some recombinant lambda phages containing putatively per genes were isolated. Excision from recombinant lambda phages into recombinant plasmid was successfully done in Escherichia coli strain BM25.8. The plasmid DNAs were isolated from E. coli strain BM25.8 and introduced into E. coli strain DH5α for multiplication. Plasmid DNAs were digested by EcoRI and transferred onto nylon membrane hybond N+. Southern hybridization analysis showed that one clone, L10/R/3/4, contain per gene in the 7.7 kb EcoRI fragment. This fragment is inserted into pSportI. 
Probit Model on Multivariate Binary Response Using Simulated Maximum Likelihood Estimator Jaka Nugraha; suryo Guritno; Sri Haryatmi
Jurnal ILMU DASAR Vol 11 No 1 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

In this paper, we discuss probit model on multivariate binary response. We assume that each of n individuals is observed in T responses. Yit is tth response on ith individual/subject and each response is binary. Each subject has covariate Xi (individual characteristic) and covariate Zijt (characteristic of alternative j). Response on individual ith can be represented by Yi = (Yi1,....,YiT), Yit is tth response on ith individual/subject and each response is multinomial. In order to simplify, we choose one of individual characteristics and alternative characteristics. We use simulated maximum likelihood estimator (SMLE) methods to estimate the parameter based on Geweke-Hajivassiliou-Keane (GHK) simulator. We find the first derivative of likelihood function for multivariate binary probit. Then, we expand to multivariate multinomial response. The first derivative is used in the BHHH (Berndt, Hall, Hall, Hausman) iteration to obtain estimators. 
Analysis of DNA Fragment Obtained from Groupers (Epinephelus fuscoguttatus) Challenged by Vibrio alginolyticus St Hidayah Triana
Jurnal ILMU DASAR Vol 11 No 1 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

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Abstract

The objective of this study was to analyse the size of DNA fragment from both resistant and susceptible groupers (Epinephelus fuscoguttatus) after infection by Vibrio alginolyticus. This study was conducted by two steps, firstly, determination of Lethal Concentration (LC50) of Vibrio alginolyticus to obtain fish which resistant and susceptible against Vibrio alginolyticus infection. Secondly, analysis of DNA fragment from both resistant and susceptible fish against Vibrio alginolyticus infection by PCR-RAPD method. In order to analyse the fragment of DNA from the fish, DNA was extracted and the concentration was counted using Kit. Sixteen primers were used, which six primers (RAPD 1-6) were from RAPD Kit, other primers were OPA-14, -A, -B, -C, and -D, YNZ 22, UBC-122, -158, -456, and -457. The results demonstrated that the concentration of bacteria that caused 50 % of fish mortality (LC50)was 7.4 × 105 CFU/L. Based on this concentration, the number of fish which were resistant and susceptible against Vibrio alginolyticus infection were obtained. For the DNA fragment analysis, the concentration of DNA after extraction ranges from 448 μg/ml to 3320 μg/ml with the purity ranges from 86-95 %. From 16 primers used for PCR-RAPD, only 6 primers showed DNA fragments in the gel electrophoresis. Those primers are OPA-14, YNZ 22, UBC-122, -158, -456, and -457. The number of DNA fragments was higher in the group of resistant fish (average 6.4 fragments) than in the group of susceptible fish (average 4.9 fragments). Fifty seven percent (57%) from resistant fish showed specific DNA fragments with size 2.0 kb, indicate that these fragment sizes have a potential role to be used as a marker for obtaining the resistant fish against bacterial infection. 

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