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UNEJ e-Proceeding
Published by Universitas Jember
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Articles 107 Documents
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Search results for , issue "2016: Proceeding The 1st International Basic Science Conference" : 107 Documents clear
MODIFICATION OF BEAN SPROUT AND UREA MEDIA TO SPIRULINA PLATENSIS CULTURE Nadya Adharani; Selly Candra Citra; Nova Bagus Hidayat; Agung Hermawan Susanto; Angga Saputra
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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The development of microalgae culture Spirulina platensis is interesting until now, this was caused S. platensis has multi-function in several sector. High price of commercial media for the culture needs prompting to search alternative medium which is not expensive, such as sprouts extract (ET) and Urea. The Data of research from the experiment on commercial media and alternative using Standard Error of the Mean (SEM) are : The threatment K (Kontrol) with commercial media “walne”, the growth of S. Platensis cell is 22105 cell/ml and protein levels is 22.17%. Treatment P4 with alternative media (6% ET+120 ppm urea) showed that result of growth of S. Platensis cell is not too different to the threatment K, the result is 21136 cell/mL and protein level is 18.55%. Both experiment showed that the difference of growth cell between both experiment is not significant. Another result of treatment which used alternative media are: Treatment P2 (6% ET+100 ppm) growth cell is 16.383 cell/mL, protein level is 17.07%; Treatment P1 (4% ET+ 100ppm) growth cell is 10.7669 cell/mL, protein level 10.10%. The lowest of growth cell is treatment P3 (4% MT+120 ppm), growth cell is 10.769 cell/mL and protein level 13.81%. The conclusion is combination of ET and urea able to replace medium of microalga culture, it is like commercial medium "walne" as the culture medium for the growth of S. platensis.
ROLE OF REACTIVE OXYGEN SPECIES ON DEVELOPMENTS OF OSTEOCLASTOGENESIS IN AGING Dyah Indartin Setyowati; Zahreni Hamzah; Zahara Meilawaty
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Osteogenesis is a process of development which is perfectly controlled by a number of extrinsic and instrinsic factors that consists of hormones, growth factors, cytokines produced in the bone marrow micro environment, due to process of molecules adhesion that mediate by the interaction of cells and cell-matrix, osteoblasts-specific signaling proteins and transcription factors (TFs). Recently, research explained that adherence osteoclasts on the bone surface and secretion of protons into an extracellular compartment between osteoclasts and bone surface together with the production of Reactive Oxygen Species (ROS) involved in the complex process of bone resorption. Superoxide role in the activation and transcription NF-κB factor is to increase osteoclastogenesis. Furthermore, it is alleged that ROS is involved in both differentiation of osteoclasts and osteoblast cell. Aging and diseases which associated with aging is a result of ROS that cause damage was reported increase with age. This review, which is dedicated to geriatric physicians, geriatric dentistry or gerodontology reviews ROS-related osteoclastogenesis in aging and as the basic of the research to determine benefit of ROS through NADPH oxidase activation in the osteopetrotic case.
ANALYSIS OF EL NIÑO EVENT IN 2015 AND THE IMPACT TO THE INCREASE OF HOTSPOTS IN SUMATERA AND KALIMANTAN REGION OF INDONESIA Ardila Yananto; Saraswati Dewi
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Global climate in 2015 was greatly affected by the occurrence of El Niño Southern Oscillation. The appearance of El Niño has been widely predicted since 2015 by various research institutions in the world that work in the field of Meteorology and Climatology. In early September 2015, experts from World Meteorological Organization (WMO) stated that the El Niño occurred in 2015 will be one of the strongest El Niño in history. Based on a calculation, the value of Sea Surface Temperature (SST) in the waters of the East-Central Pacific Ocean tends to be warmer more than 2 degrees Celsius from the average value. El Niño that impact most areas of Indonesia will always be associated in drought due to reduced rainfall intensity. Drought, in further, has resulted in increasing hotspots significantly compared to previous years, especially in the Sumatera and Kalimantan region of Indonesia, creating smog disaster in 2015. The main objective of this research was to analyze the occurrence of El Niño in 2015 and its influence on increase of hotspot in Sumatera and Kalimantan both in temporal and spatial scale. This research use the integration of Meteorological-Climatological and Geographic Information Systems Science based, Nino -3.4, Sea Surface Temperature (SST) and Wind Gradient for El Niño events analysis, also MODIS Satellite high accuracy data for Hotspot distribution analysis. It can be seen that there was a most powerful El Niño phenomenon compared the history that the peak event in November 2015 with value 2.95 of Nino -3.4. Gradient Wind from June to December 2015 has shown the movement of water vapor Pacific Ocean tendency towards the East, resulting decrease of rainfall intensity in the Pacific Ocean in the Central and Western region including Indonesia. Based on the analysis both spatial and temporal, it's shown that South Sumatera and Central Kalimantan are regions with highest increase in total hotspot, the total hotspot increased by 363% for South Sumatera and by 231% for Central Kalimantan.
Seismic Resolution Enhacement with Spectral Decomposition Attribute at Exploration Field in Canada Illavi Praseti Pebrian; Puguh Hiskiawan; Artoto Arkundato
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Seismic data that has a high resolution is very important used to describe hydrocarbon reservoirs in detail. Inconventional seismic data, the available bandwidth is limited and cannot map the thin layers that seen on well data, therefore, the way to improve the resolution of seismic data is needed. In this research, the method used to improve the resolution of seismic data is spectral decomposition. Spectral decomposition can characterize the seismic response at a particular frequency, and can also be used to filter the data, eliminating signals that are unwanted or increase the quality of data. Spectral decomposition method used is the Continuous Wavelet Transform (CWT). This study had been carried out by implementing CWT in certain wavelet and frequency to analyze the seismic resolution. The various wavelets had been used this study, are Morlet and Gaussian. The various frequencies of 2 Hz, 14 Hz, 20Hz, 25 Hz, 31 Hz, and 51 Hz in 1180 inline. The results obtained from this study show that the use of higher frequency shows better separation. In addition, the application of seismic data in the area of research Penobscot, the best separation of thin layer is in the tuning frequency 51 Hz using Morlet wavelet in 1180 inline.
GIS-based optimization method for utilizing coal remaining resources and post-mining land use planning: A case study of PT Adaro coal mine in South Kalimantan Mohamad Anis; Arifudin Idrus; Hendra Amijaya; Subagyo Subagyo
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Coal is a non-renewable energy resource that has been the main source of energy and the most important in the world. Resource coal plays a strategic role in economic and social development in many industrialized countries [3, 4, 6]. Coal mining activities may cause a series of environmental and socio-economic issues in communities around the mining area. Mining can become an obstacle to environmental sustainability and a major hidden danger to the security of the local ecology [3, 4, 6]. Therefore, the coal mining industry should follow some specific principles and factors in achieving sustainable development. These factors include geological conditions, land use, mining technology, environmental sustainability policies and government regulations, socio-economic factors, as well as sustainability optimization for postmining land use. Resources of the remains of the coal which is defined as the last remaining condition of the resources and reserves of coal when the coal companies have already completed the life of the mine [1, 2, 5] or the expiration of the licensing contract (in accordance with government permission). This research uses approch of knowledge-driven GIS based methods mainly Analytical Hierarchy Process (AHP) and Fuzzy logic for utilizing coal remaining resources and post-mining land use planning. The mining area selected for this study belongs to a PKP2B (Work Agreement for Coal Mining) company named Adaro Indonesia (PT Adaro).
The Effect of Physico-Chemical Properties of Aquatic sediment to the Distribution of Geochemical Fractions of Heavy Metals in the Sediment Barlah Rumhayati; Catur Retnaningdyah; Novi Anitra; Ahmad Dodi Setiadi
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Heavy metals in the aquatic sediment could be fractioned into five geochemical fractions. Assessment of these fractions is valuable to determine the bioavailable metals provided by the aquatic sediment. Physico-chemical properties of sediment determine the distribution of the fractions. The aims of this research were to determine the physico-chemical properties of sediment sample and to determine its effect to the distribution of heavy metals fraction. Sediment samples were collected from the Porong River at two stations by using Eickman Grab sampler. The samples were stored in 4oC until analysis. Physico-chemical properties of sediment were investigated, including texture, pH, salinity, cationic exchange capacity (CEC), redox potential, and organic material concentration. The geochemical fractions of heavy metals (Pb, Cu, and Zn) were determined after sequential extraction using modified BCR method. As a result, texture of sediment correlated to the organic material concentration while the amount of organic material determines the third fraction of heavy metals, i.e. the oxidation fraction. CEC and pH, and salinity determined the amount of the first fraction, i.e. the exchangeable fraction. Redox potential of sediment affected the amount of the second fraction of heavy metals, i.e. the   acid reducible fraction.
Image Encryption Technique Based on Pixel Exchange and XOR Operation Kiswara A. Santoso; Fatmawati Fatmawati; Herry Suprajitno
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Recently the information system develops quickly, especially information system via internet. It’s happened because the Internet can be used by anyone, anywhere and anytime. The information on the Internet has various types of data such as text, video, audio, and image/photo. Although we can access the Internet easily, but the data which transfered through internet isn’t safe. It caused by hacker, someone who manipulate information so that data become different with the original. Many efforts have been done to make the data that transmitted over the Internet to be secure, for example make the coding, disguise or hide data into other media. In this paper we intend to present the results of research about image encryption techniques to increase the security of data (image) so that safe if the data is transfered via the internet. This encryption using symmetric-key. The key is 4 BIT or a real number between 0 15. This key will be processed by each pixel in the image using XOR operation. The next step the BIT of pixels are devided into two part, LSB (least significant bit) and MSB (Most significant bit). Both will be exchanged if the conditions have completed. We do that to get better results, that is file size of the image encryption is smaller than the original image. The results of this research are image encryption have significant differences with the original image, it can be proved by correlation between both images. Another advantage of this coding technique is the image encryption file size smaller than the original image file size so it can speed up of image transfer. Decode result of this coding technique is good enough, it can be seen from the mean square error (MSE) between the image encryption that has been restored to its original form and the original image. All the manufacturing process of encoding techniques have been simulated and analyzed using software MATLAB 2012a.
The Rainbow (1,2)-Connection Number of Exponential Graph and It’s Lower Bound Gembong A. W.; Dafik Dafik; Ika Hesti Agustin; Slamin Slamin
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Abstract

Let G = (V, E) be a simple, nontrivial, finite, connected and undirected graph. Let c be a coloring c : E(G) → {1, 2, . . . , k}, k ∈ N. A path in an edge colored graph is said to be a rainbow path if no two edges on the path have the same color. An edge colored graph G is rainbow connected if there exists a rainbow u − v path for every two vertices u and v of G. The rainbow connection number of a graph G, denoted by rc(G), is the smallest number of k colors required to edge color the graph such that the graph is rainbow connected. Furthermore, for an l-connected graph G and an integer k with 1 ≤ k ≤ l, the rainbow k-connection number rck(G) of G is defined to be the minimum number of colors required to color the edges of G such that every two distinct vertices of G are connected by at least k internally disjoint rainbow paths. In this paper, we determine the exact values of rainbow connection number of exponential graphs, namely Path of ladder as exponent, Cycle of Ladder as exponent, Cycle of Triangular Ladder as exponent, Cycle of Complete as exponent. We also proved that rc2(G) = diam(G) + 1.
Co(III) as Mediator in Phenol Destruction Using Electrochemical Oxidant Herlina Herlina; Derlini Derlini; Muhammad Razali
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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Electrochemically processing for organic waste treatment has been developed widely because the advantages of low cost, efficient, the exhausted gas that does not contain toxic materials, and can be operated in a relative low temperature. Electrochemical oxidation of organic compounds using metal ion mediator is one alternative method that is appropriate for the management of organic waste. Cobalt (III) is a strong oxidizing agent is prepared by the electrochemical oxidation method and as a mediator in the process of mediated electrochemical oxidation. At potential of 6 volt, with 4 M nitric acid and temperature of 25°C give result 23.86% where Co (II) is converted to Co (III) within 2 hours of the initial concentration of Co (II) 0.1 M. The addition of AgNO3 to catholyte can increase the concentration of Co (III). At the optimum conditions, the mediator metal ion Co (III) can destructed to 66.44% of phenol compounds are oxidized to CO2 for two hours.
Resistivity Value as Characteristics Of Majapahit Kingdom Era Red Bricks Supriyadi Supriyadi; Nurul Priyantari; Rosaria Dwi Sukmadewi
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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The era of Majapahit kingdom is the most famous kingdom era in Indonesia. This is shown by many heritage sites in Indonesia, including some of the temples that have been found. generaly, the temples consists of red brick is visually the same as the other red brick. Contrain in identification of heritage site era is frequenly faced in escavation. In this research, red brick of Majapahit kingdom era will be characterise using resistivity value and compare to recent red brick. The red brick samples were taken from two temples in Jember, the Deres temple (the Beteng Site) and the temple in Wuluhan country. The research result that Majapahit kingdom era red brick has resistivity lower than recent red brick, 15.73 Ωm for the Beteng Site and 17,5 Ωm for the temple in Wuluhan country, whereas 22,56 Ωm for recent red brick. Therefore, red brick resistivity value can be use as characteristics to identify era of a heritage site, especially Majapahit kingdom era.

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