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INDONESIA
Jurnal ILMU DASAR
Published by Universitas Jember
ISSN : 14115735     EISSN : 24425613     DOI : -
Core Subject : Science, Education,
Jurnal ILMU DASAR (JID) adalah jurnal ilmiah yang melingkupi bidang matematika, fisika, kimia dan biologi. Naskah yang diusulkan untuk diterbitkan Jurnal Ilmu Dasar adalah naskah yang belum pernah diterbitkan dan atau tidak sedang dipertimbangkan penerbitannya di majalah lain. Jurnal Ilmu Dasar menerima tulisan hasil penelitian dasar (bukan aplikasi) untuk bidang matematika, kimia, fisika, dan biologi. Naskah ilmiah ditulis dalam bahasa Indonesia atau dalam bahasa Inggris yang baik. Secara lebih detail dapat dilihat dari pedoman penulisan.
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Articles 11 Documents
Search results for , issue "Vol 22 No 1 (2021)" : 11 Documents clear
Simultaneous Analysis of Ammonium and Nitrate Ions Levels with Potentiometric Multi-commutation Flow System Method Hikmah, Fajrin Nurul; Mulyono, Tri; Zulfikar, Zulfikar
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.17767

Abstract

This study aims to develop a multi-commutation flow system method for simultaneous determination of ammonium ion and nitrate ion using two detectors, namely ammonium ion selective electrode and nitrate ion selective electrode. The multi-commutation flow system method uses two three way selenoide valves to adjust the sample flow and ISA solution. The selenoid valve alternately flows the sample and ISA solution to the ion selective electrode. Flow control by three way selenoid valves is controlled by LabView which is programmed in the computer. The computer is connected with Arduino and a relay that functions as an on-off switch on the three way valve selenoid. This method is then applied to measure the levels of ammonium ions and nitrate ions in well water samples. The performance of the multi-commutation flow system determined includes linearity, limit detection, sensitivity, repeatability, and recovery test. Ammonium analysis results show good performance with several criteria. Ammonium linearity value is 0,9991, ammonium detection limit value is 2,23 × 10-5 M, sensitivity of ion selective electrode ammonium is 45,39 mV per decade, the repeability value is less than 2% and the recovery percentage of ammonium is 115%. While the results of the nitrate analysis showed a linearity value of 0,9937, a nitrate detection limit value of 1,31 × 10-5 M, sensitivity of the ion selective electrode nitrate of -110,58 mV per decade, a repeatability value of less than 2% and a recovery percentage of 87% nitrate. Keywords: Flow Analysis, multi-commutation, ammonium, nitrat, simultaneous.
Increased Interleukin-4 in Farmers With Ascariasis in Rural Jember Armiyanti, Yunita; Rahmadhan, Adiz Dwiputra; Hermansyah, Bagus; Helianti, Dina; Nurdian, Yudha
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.15921

Abstract

Ascaris lumbricoides is nematode which often infest human in the world. The infestation of A. lumbricoides in the human will trigger the formation of Th2 immune responses through increased interleukin-4 released by innate immune cells. Th2 immune response generates B lymphocyte cells to produce IgE antibodies to eliminate A. lumbricoides. Therefore, IL-4 is a marker of Th2 immune response. The purpose of this study was to determine the prevalence of ascariasis and an increase of IL-4 in planters infested with A. lumbricoides as a marker of Th2 immune response. Our study was observational analytic with cross sectional design. 230 planters who were willing to be involved in the study gave stool samples for the diagnosis of ascariasis. 20 people who were positive for ascariasis and 20 people who were negative selected randomly for blood plasma samples. IL-4 levels in blood plasma were measured using ELISA. Differences in IL4 levels between positive and negative ascariasis were analyzed by the Mann Whitney statistical test with p value ≤ 0.05. The prevalence of ascariasis among planters in rural area of Jember was 16,52% which was included low prevalence. Univariate analysis showed that the mean and median levels of IL-4 ascariasis were greater than those of healthy planters. Mann Whitney test results showed that there were differences in levels of IL-4 between ascariasis and healthy planters (p≤0.05). Increased levels of IL-4 in planters with ascariasis indicate that A. lumbricoides infection triggers the formation of Th2 immune response as a mechanism for eliminating A. lumbricoides. Keywords: Interleukin-4, A. lumbricoides, Th2 immune response.
Synthesis TiO2 -SiO2 Composites Using The Method Sol-Gel-Hydrothermal Milawati, Sri; Syahbanu, Intan; Sasri, Risya
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.14492

Abstract

Titanium dioxide (TiO2) is a transition metal oxide material which has been researched extensively and can be used for various applications. In this research, synthesis of TiO2 -SiO2 using TTIP and TEOS precursor. Research aims to determine the characteristics of composite materials generated based on the influence of hydrothermal time and precursor composition. Synthesis is done by variation of hydrothermal time (4 hours, 8 hours, 18 hours, 24 hours and without hydrothermal) and TEOS precursor composition variation (1:1, 1:2 and 2:1). Synthesis is made by dissolving the two precursors through the sol-gel-hydrothermal method and continued with the calcination process. Characterization using FT-IR showed a bonding Ti-O-Si at a wavelength of 950 cm-1 . This bond is formed from the interaction between TiO2 and SiO2 which indicates the success of the synthesis. The XRD characterization results show formed of a peak at 2θ° the range 25° for all composites. The results of the dr-uv characterization on the TiO2 -SiO2 composite comparison of 2:1 showed absorption at 387 nm and obtained band gap energy of 3,20 eV. Based on the data obtained it can be concluded that synthesis of TiO2-SiO2 hydrothermally obtained the optimum time 24 hours and the best comparison is contained in the composition 2:1, which produces an anatase structure with a crystal size of 15,899 nm, so that the resulting composite can be used as a photocatalyst. Keywords: Hydrothermal, Sol-gel, TiO2 -SiO2.
Classification of Underdeveloped Areas in Indonesia Using the SVM and k-NN Algorithms Al Azies, Harun; Anuraga, Gangga
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.16928

Abstract

The determination or classification of underdeveloped areas essentially consists of classifying several observations taking into account existing indicators. The classification method used is K-Nearest Neighbor (k-NN) and Support Vector Machines (SVM). This study aims to analyze the accuracy of the classification between SVM and k-NN algorithms in the classification of underdeveloped areas in Indonesia. The data source used in this study is secondary data obtained from the Central Bureau of Statistics (BPS). The data used are 514 districs and municipalities of Indonesia. After analysis, the conclusion is that there are 122 districs and municipalities that are left behind out of a total of 514 districs and municipalities in Indonesia. The most underdeveloped areas are on the island of Papua, followed by the areas of the islands of Bali and Nusa Tenggara, and Sulawesi. Based on the results of the classification of underdeveloped areas using the method SVM with the kernel RBF has the best results with the parameters C = 1 and γ = 0.05 while the results of the classification of underdeveloped areas using the method k-NN obtains the best results with k = 15 Based on the results of classification of underdeveloped areas using the SVM and the k-NN method, including the level of classification is very good. The two methods compared have the same precision value of 92.2% and can be used to determine the classification of underdeveloped areas. Keywords: classification, machine learning, supervised learning, underdeveloped areas.
The Diversity of Potential Malaria and Dengue Mosquito Vector from Bangsring Village Wongsorejo District Banyuwangi East Java Azkiyah, Siti Fat'hiyatul; Senjarini, Kartika; Oktarianti, Rike; Wiyono, Hidayat Teguh; Wathon, Syubanul
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.13601

Abstract

Bangsring village in Wongsorejo regency has been reported as malaria endemic area in Banyuwangi since 2011. Understanding the diversity and behavior of mosquito vector in this area will be very impotant in developing vector control program. The masquitoes were collected by landing collection outside and inside house by human bites, we also observed the area around cattle cage. During observation periods, a total 633 masquitos were collected consist of 44% malaria potential vector (Anopheles spp.) 19% Dengue fever (DF) potential vector (Aedes spp.) and 36% were not belong to both of them. Out of total collected Anopheles spp. mosquitoes about 65% were indentified as An. vagus, 25% were An. indevinitus, 8% were An. vagus (limosus), and only 2% as well as 0,04 % were An. supictus and An. kochi. Meanwhile we found 19% of Aedes sp. were Ae. aegypti and 81% were Ae. albopictus. This study showed that the dominan potential malaria’s vector is An. Vagus and the dominan DF vector is Ae. albopictus. Mostly colleted Anopheles sp. were exophagic and zoophilic with the highest activities between 06.00-08.00 pm. This was in contras to Aedes sp. where mosfly found endophilic and it has 2 hightime of activities Aedes sp. between 06.00- 07.00 AM and 05.00-06.00 PM. Keywords: Dengue, Malaria, diversity, Anopheles, Aedes.
Prevalence and Intensity of Parasitic Worms on Free-Range Chickens and Egg-Laying Chickens in Muara Badak sub-District, Kutai Kartanegara Hariani, Nova; Simanjuntak, Imilia
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.11092

Abstract

One of the diseases often threatens the health of free-range chickens and egg-laying chickens are worm parasites (endoparasites). Parasites can be transmitted through food, drinks and the cage environment. Sanitation is one of the preventive steps carry out by farmers to protect livestock against infection from the environment. The objective of study was to determine the prevalence and intensity of parasitic worm eggs that infect the digestive tracts of free-range chickens and egg- laying hens in Muara Badak District. Research was done by observing worm eggs in fecal samples. A total of 60 samples consisting of 30 samples of egg-laying hens in Tanjung Village and 30 samples of free-range chickens in Badak Baru Village, Muara Badak. For the sample analysis technique used 2 methods are namely the floating method and the sedimentation method. The results has showed the type of worm eggs are infected the digestive tract found in free-range chickens and egg-laying chickens had consisted of Echinostoma revolutum, Raillietina echinobothrida, Raillietina tetragona, Davainea proglotina, Amoebotaenia sphenoides, Ascaridia galli, Capillaria annulata and Trichostrongylus tenuis. The highest prevalence in free- range chickens and egg-laying chickens were found in Ascaridia galli was 53.33% and 40%. While the lowest prevalence in free-range chickens against Raillietina echinobothrida and Amoebotaenia sphenoides 3.33%. egg-laying chickens are against Echinostoma revolutum, Raillietina tetragona and Trichostrongylus tenuis 6.67%. The highest intensity in free-range chickens and against Ascaridia galli was 141 eggs/individual and in egg-laying chickens was 139 eggs/individuals. The lowest intensity in this research was found in free-range chickens against Amoebotaenia sphenoides and Raillietina echinobothrida 3 eggs/individuals and egg-laying chickens against Echinostoma revolutum 5 eggs/individuals. Keywords: Endoparasites, Prevalence, Intensity, Chicken, hen.
Habitat Characteristic of Softshell Turtle (Amyda cartilaginea Boddaert,1770) in Engkelitau River Sekadau Regency, West Borneo Arbi, Florensius Joko; Yanti, Ari Hepi; Riyandi, Riyandi
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.17041

Abstract

Information about the character of softshell turtle’s habitat (Amyda cartilaginea) is needed as conservation effort and to prevent softshell turtle’s extinction. The research on habitat, morphometric holes, and environmental factors that suitable for softshell turtle is needed to be approved. The research was conducted in Engkelitau River, Sekadau, West Borneo. Sampling area was divided into 3 stations based on the type of cover between primary dryland forest, farming land and open field. Data on the softshell turtle’s number, holes and scratch marks were analyzed using principal component analysis (PCA). The highest river slope at Station I is 60o and the lowest river slope at Station III is 42o. Substrate’s type that found in Engkelitau River consist of sandy, dusty, and muddy substrates. The number of softshell turtle’s hole in the Engkelitau River is 45 holes, consisting one hole with softshell turtle, 15 holes with scratch marks, and 29 holes not including both of them. The highest height, width and distance between holes are in Station I and both hole’s length and height from the surface as well as highest river are in Station II. The environmental factors that affected A. cartilaginea in the Engkelitau River consisted of river velocity and river’s slope with loading factors of 4.08135 and 3.94019 respectively. The characteristics of A. cartilaginea’s hole in the Engkelitau River including a pond in the hole, an air hole, and located in the middle of a riverbank. Keywords: habitat characteristics, Amyda cartilaginea, softshell turtle, Engkelitau river.
Echinoderms Diversity in Cibuaya Beach Ujung Genteng, West Java Triacha, Zarfa Izra Egharitya Chipta; Pertiwi, Meilisha Putri; Rostikawati, Teti
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.18899

Abstract

The research about Echinoderms diversity in Cibuaya Beach Ujung Genteng, West Java has been conducted from February to July 2019. It aimed to know diversity index of Echinoderms. It used belt transect method with three stations in the intertidal zone. Sampling technique used purposive sampling. The observation data are included primary data (the number of phylum Echinoderm’s species in the transect) and environmental data (pH, salinity, temperature, depth, current strength, and substrate). The population in this study was all species of Echinoderms found in the intertidal zone. The sample in this study was the species of Echinoderms found in the area of the station. Based on the result, the study obtained 8 species of Echinoderms, consisted of 3 classesand classified into 5 orders, 5 families, and 6 genera. The diversity index is classified as low with the average value of 0.62. The evenness index is classified as low with the average value of 0.37. The dominance index is classified as moderate with the average value of 0.67. Keywords: diversity, echinoderms, cibuaya beach, Ophiuroidea, Echinoidea, Holothuroidea.
Cover JID Volume 22 No 1 (2021) DASAR, Jurnal ILMU
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Evaluation Treatment Planning for Breast Cancer Based on Dose-Response Model Aisyah, Siti; Hariyanto, Aditya Prayugo; Endarko, Endarko; Rubiyanto, Agus; Nasori, Nasori; Haekal, Mohammad; Nainggolan, Andreas
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.19732

Abstract

The delivery of radiation therapy to patients requires prior planning made by medical physicists to achieve radiotherapy goals. Radiotherapy has a plan to eradicate the growth of cancer cells by giving high doses and minimizing the radiation dose to normal tissue. Evaluation of planning is generally done based on dosimetric parameters, such as minimum dose, maximum dose, and means dose obtained from the DVHs data. Based on the same DVHs, data were evaluate dinterms of biological effects to determine the highest possible toxicity in normal tissue after the tumor had been treated with radiation using the NTCP model. The evaluation was conducted by selecting three DICOM-RT data of post-mastectomy right breast cancer patients who had been prescribed a dose of 50 Gy obtained from the Hospital MRCCC Siloam Semanggi database. All data were processed using open-source software DICOManTX to get the DVH and isodose information. Matlab-based CERR software was used to calculate the NTCP model. The results show that the three patients' DVH and isodose treatment planning result in a homogeneous dose distribution result because the PTV area obtains adose limit of ≥ 95%. Moreover, normalt issue still gets adose below the tolerance limit based on the standard from RTOG 1005 and ICRU 83. Analysis of NTCP shows a complication probability below 1% for each organ, suggesting that any organ which has been irradiated has a low likelihood of complications. Therefore, it can be concluded that the treatment planning which has been made in the three patients using the IMRT technique has achieved the objectives of radiotherapy, which is to minimize toxicity to healthy organs. |Keywords: DVH, isodose, NTCP, radiotherapy.

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