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Jurnal Ilmu Dasar

JID
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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 Diversity of Holothurioidea in the Intertidal Zone of the Pancur Shore of the Alas Purwo National Park Riya Wulan Afrely; Moh. Imron Rosyidi; Susantin Fajariyah
Jurnal ILMU DASAR Vol 16 No 1 (2015)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Holothurioidea well known as Sea Cucumber is one of the classes from the Echinodermata phylum. Sea cucumbers are benthic animals that move slowly. Currently they already identified about 1135 species. Their existence usually associated with abiotic factors such as water salinity, temperature, pH, wave motion, light intensity and the substrate. The ability of the Holothurioidea to adapt to the abiotic factors will affect species diversity. The research aims is to determine the species diversity in the intertidal zone at Pancur Shore of the Alas Purwo National Park. It includes the species composition, species diversity index and the index of equality The study was conducted on 14th-21st of June 2014, by using systematic plotting transect method. The results found: one order, one family, two generas and eight species. The Species diversity index of Holothurioidea at Pancur Shore is low (0.930) and the equality index classified uneven (0.447).Keywords: Holothurioidea, intertidal, diversity, evennes

Identification and Characterisation of “Black Sticky Rice” (Oriza Sativa Glutinosa) as Photosensitizer in Development of Dye Sensitized Solar Cells (DSSC) Agus Supriyanto; Ashari Bayu Prasada; Cari Cari; Ulfa Mahfudli Fadli
Jurnal ILMU DASAR Vol 17 No 1 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

It has successfully conducted a research to identify and characterize extract of black sticky rice (Oryza Sativa Glutinosa) as photosensitizers in making of Dye Sensitized Solar Cells (DSSC). Samples were made in the sandwich structure of couple of working electrode and counter electrode. The extraction process of dye in the black sticky rice was stirred for 1 hour and then allowed to stand for 24 hours. Identification of samples using FTIR (Fourier Transform Infra-Red) to determine the chemical bond formed in the sample. Test the absorbance of the sample using UV-Visible Spectrophotometer Lambda 25 test and characterization of current and voltage (I-V) using a Keithley 2602A. The results showed maximum absorbance black rice extract appears in two peaks namely at = 324 nm and = 477 nm. While the I-V curve measurements indicate the efficiency of the resulting large black rice extract was 0.028% on a 12-hour soaking period and 0,032% in 24 hours soaking time. These results indicate that longer soaking could increase the efficiency of the resulting value.Keywords: Ketan Hitam (Oriza Sativa Glutinosa), DSSC,FTIR, UV-Vis, Keithley

Synthesis of precipitated Calcium Carbonate (PCC) From Lime Rock Nature Methods Caustic Soda (Studies Concentration HNO3) Noor Isnaini Azkiya; Fanny Prasetia; Elsa Desyta Putri; Anggita Rosiana; Sri Wardhani
Jurnal ILMU DASAR Vol 17 No 1 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

The limestones was abundant in Tuban, East Java and have high calcium mineral content. Nevertheless, in the economic value, limestone have low price. Aim the research is prepare Precipitated Calcium Carbonate (PCC) by caustic soda method. In this method, calcium was dissolved in HNO3 with different concentration (2, 4,6, 8 M). The Filtrate obtained then was added by Na2CO3 1 M to get PCC. As the results, The white PCC obtained with the highest rendement is 64,7% when added HNO3 6M. Analysis of functional group by FTIR show that there were strong absorption in the 844,76; 912,27 dan 1411,40 cm-1 that indicated carbonate group. Analysis of Cristallinity by XRD show that there were the peak characteristic of 2 on 29,50˚; 36,07˚ dan 39,50˚that representative calcite structure. SEM-EDX Analysis show that PCC have a mixing structure of calcite and vaterite. Keywords: limestone, PCC, caustic soda

Effect of Addition of Monosodium Glutamate (MSG) on Coagulation Basin to Characteristics of Cellulose Acetate Membranes Rofiqoh, Siti; Indarti, Dwi; Piluharto, Bambang
Jurnal ILMU DASAR Vol 17 No 2 (2016)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

The aim of recearch is study the effect of MSG in coagulation basin on cellulose acetat membranes properties. It was preparated by phase inversion technique. As the result showed that the higher the concentration of MSG in coagulation basin, which is character of membrane permeability coefficients and lower water flux. Dextran rejection of 11, 40, 100-200, and 500 kDa increased. The morphology analysis has shown that sub layer membranes structure with 2% MSG addition more uniform than 0,5% MSG addition.Keywords: cellulose acetat, phase inversion, MSG, coagulation basin

Covariance Based approach SEM with Bollen-Stine Estimation (Case Study Analysis of The Effect of Teacher and Principal Competence on Achievement of National Standards) Kasmuri Kasmuri; I Made Tirta; Yuliani Setia Dewi
Jurnal ILMU DASAR Vol 16 No 2 (2015)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Applications of covariance Based SEM (CB-SEM) generally use the maximum likelihood, based upon the assumption on the normal distribution of data. One alternative that could be applied if the data were not normally distributed is estimation using Bollen-Stine bootstrap approach. In this study, the method is applied to reveal the influence of teacher competence, the principal competence, to the value of achievement of national education standards in secondary schools in Banyuwangi.The objective of this paper was to determine and analyze the relationship and to know the the most dominant indicators of measure latent variables between the the principal, teachers competences on national standards of educational attainment in secondary schools in Banyuwangi. The results indicate that all of the indicator of variables are valid and reliable to measure corresponding latent variables. Each latent variable has the most dominan indicator. For the principal competence latent variables the most dominant indicator is the entrepreneurial competence, for teachers competency the most dominant is personal competence, whereas for national education standards, the most dominant standard of facilities. Principal competence has indirect influence on national education standard achievement, but directly affect the competence of teachers. Teacher competence directly influence national education standards.Keywords: Power Competence Teachers, Competence Principal, National Education Standards, covariance Based SEM, Bollen-Stine Bootstrap Estimates

Application of Young Coconut Water and “Kascing” Fertilizer to Red Palm Seed Germination Zuhro, Fatimatuz; Hasanah, Hasni Ummul; Sukadi, Sukadi
Jurnal ILMU DASAR Vol 18 No 1 (2017)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Redpalm isornamentplantwhichpotentiallytobecultured.Thescarcityofredpalmmadeithashighmarket value and need to be preserved. However, the germination growth of red palm is slower than other kinds of palm, so the best way to germinate the red palm seed is needed. The aim of this research is to determine the effect of apliccation some young coconut water concentration and kascing fertilizer to red palm seed germination. The research used factorial completely randomized design with 5 replication, the first factor is young coconut water concentration (0%, 25%, 50%, 75%, and 100%) and the second factor is germination media (steril sand and kascing fertilizer). Variables measured were live germination percentage, speed germination rate, radicula length, and plumula height. Results of this study showed that the best germination media is steril sand and 0% concentration of young coconut water.

Population Dynamics of Bemisia tabaci Genn. and Type of Predators Found on the Edamame Soybeans (Glycine max L.) in Mangli Jember Wijayanto, Tulus; Sudarmadji, Sudarmadji; Purwatiningsih, Purwatiningsih; Purnomo, Hari
Jurnal ILMU DASAR Vol 18 No 2 (2017)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

The study was conducted at the edamame plantation area of PT. Mitra Tani 27 Jember with the size of 31.6 m x 29.8 m. The sampling of imature B. tabaci was done by collecting the samples of leaves from the five plots of planting. The adult samples were taken by setting some yellow traps with the size of 20 x 30 cm. The results showed that the populations of B. tabaci changed during the growing season of edamame, the older the plants grow, the greater number of the populations. The highest number of B. tabaci adult population was in the age of 10 weeks after planting, those were 818 B. tabaci. The increase of the B. tabaci population had a significant correlation with the increase of the predators population on edamame. There were seven species of predators founded at the edamame. The highest number of predator founded was Coccinella transversalis and the lowest number of predator was Coccinella septempunctata. Keywords: Bemisia tabaci Genn., edamame Soybeans, yellow traps, C. transversalis

Comparation of Magnetic Flux Cases Solution in Around Electrified Wire between Analytical and Computational Methods Haning, Ady E.P; Warsito, Ali
Jurnal ILMU DASAR Vol 19 No 1 (2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Have analyzed comparative analytical and numerical computation solutions in the case of magnetic flux to the circular loop of radius R as far apart as H around the current I in the wire. The aim is to know how the methods used have an accurate solutions calculated based on relative error value. The analytical method use taking concept of polar coordinates and the computational method using the function of analytic equations modified based on Simpson and Monte Carlo method. Both methods are aprroaches in numerical integration.After test with variation of combination of R=0.1 and 0.2 and H=0.1 and 0.2, the Simpson and Monte Carlo indicate the integration value corresponding to the exact or analytical solution value, the relative error value of the Simpson method range from 0,004% - 0,017% and the relatif error value for Monte Carlo method range from 0.056% - 3.4296%. Keywords: magnetic flux, analytical, simpson, monte carlo, relative error

Ethnomedicine of Medicinal Plants By Batak Phakpak Subethnic in The Surung Mersada Village, Phakpak Bharat District, North Sumatera Silalahi, Marina; Nisyawati, N.; Walujo, Eko Baroto; Mustaqim, Wendy
Jurnal ILMU DASAR Vol 19 No 2 (2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

The research was conducted the ethnomedicine of medicinal plants by ethnic Batak Phakpak, in the Phakpak Bharat District, North Sumatra. The research was conducted by ethnobotany approach through semi-structured interview. A total of 39 respondents consisting of 7 key informants and 32 general respondents were interviewed. The data obtained were analyzed using values of use values (UV) and cultural index significance (ICS). The sub-ethnic of Batak Phakpak in Surung Mersada village have been used 128 species belonging 102 genera and 51 families to cure the 24 types of diseases. Asteraceae, Zingiberaceae, Euphorbiaceae, Fabaceae, Solanaceae, and Rutaceae are the families with the highest number of species, 12, 8, 8, 8, 7 and 6 species respectively. UV of medicinal plants utilized by Phakpak Batak sub-ethnic is 0.25-3.97, while ICS value is 3-150. The bark of Bischofia javanica as a cholesterol drug and the leaves of Sauralia pendula as a hypertension drug arethe plants that have the potential to be developed commercially, so its take research of the secondary metabolites and bioassay.Keywords: Bischofia javanica, Sauralia pendula, use values, cultural significance index

Investigations on The Mechanism of Artificial Photosynthesis of Ca-Pc-PDI and Dendrimer Molecule by DFT Calculations Gunawan, Rahmat; Hammamiyah, Ulinnuha; Fadillah, Fahmi; Saleh, Chairul; Sitorus, Saibun
Jurnal ILMU DASAR Vol 19 No 2 (2018)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Artificial photosynthesis modelling of Ca-Pc-PDI complex Ca Phthalocyanine Perylenediimide), and dendrimer molecule using Density of Functional Theory (DFT) Method has been studied to showed the energy efficiency of these compounds in terms of electron transfer in photosynthesis. The Analysis of Ca-Pc-PDI and dendrimer compound and also chlorophyl has been done in all computations using the GAMESS-US software. The computations result in this research showed that the large wavelength complex compounds of Ca-Pc-PDI obtained was 138.3299 nm and energy efficiency obtained was 0.89 eV. The data analysis states that the absorption of harvest light energy of complex compounds Ca-Pc-PDI lies in the far UV spectrum. The other side, the polyphenylene dendrimer structure molecular orbital analyses it was found that the dendrimer was capable of electron transfers as indicated by the existence of HOMO and LUMO and result comparisons with chlorophyll. UV wavelengths of the polyethylene dendrimer and chlorophyll, respectively, suggesting that the polyphenylene dendrimer is capable of substituting chlorophyll in artificial photosyntheses. We can states from the result that these compound ability to be applied in the modeling of artificial photosynthesis as a material of energy absorption that mimics the workings of chlorophyll in terms of electron transfer in natural photosynthesis process. Keywords: Artificial photosynthesis modelling, Ca-Phthalocyanine-Perylenediimide complex, and dendrimer molecule

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Home Page

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Contact Name Solikhatun

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Editorial Address Jl. Kalimantan 37 Kampus Tegalboto Jember 68121 Telp. 62 331 334293 Fax. 62 331 330225

Location Kab. jember, Jawa timur INDONESIA

Abstract

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Contact Name
Solikhatun

Contact Email
solikhatun@ugm.ac.id

Phone
+62331334293

Journal Mail Official
jid@unej.ac.id

Editorial Address
Jl. Kalimantan 37 Kampus Tegalboto Jember 68121 Telp. 62 331 334293 Fax. 62 331 330225

Location
Kab. jember,

Jawa timur

INDONESIA