bluuebunny/crossref_metadata_2025_split huggingface dataset:
Photoelectrocatalytic degradation of reactive red 141 using FeTiO3 composite doped TiO2/Ti electrodes
Authors: Muzakkar M Z , Natsir M , Alisa A , Maulidiyah M , Salim L O A , Sulistiyani I , Mustapa F , Ratna  , Nurdin M 
Published: May 2021

Abstract
Fabrication of FeTiO3-TiO2/Ti composite electrodes has been successfully carried out by the hydrothermal method and dip coating. The purpose of this study was to determine the effect of the addition of Ilmenite (FeTiO3) on TiO2/Ti plates which will be applied to degrade Reactive Red 141 by photoelectrocatalytic. The characterization results using XRD showed the success of FeTiO3 support on TiO2/Ti produced in the form of anatase crystals with peaks of 2θ = 39.88°, 52.71°, 62.71°, 64.51° and 67.54°. The SEM results show that the thin films are 10 μm, 5 μm and 2 μm while the EDX results show that the FeTiO3 dopant on the TiO2/ Ti plate is marked by marked peaks of Fe, Ti and O each with an elemental composition of 0.17%, 74.73%, and 25.10%. Characterization using FTIR showed the emergence of O-H, Ti-O, and Fe-O groups respectively with wave number absorption 3383 cm−1, 1132 cm−1, and 474 cm−1. Characterization using LSV showed that the TiO2/Ti electrode was active in UV light, while the FeTiO3-TiO2/Ti electrode was active in visible light. The degradation test against Reactive Red 141 using TiO2/Ti electrodes under UV light showed maximum performance at a concentration of 0.5 ppm with a percent degradation of 89.21% while using FeTiO3-TiO2/Ti electrodes under visible light showed maximum performance at a concentration of 0.5 ppm with 96.65% degradation.
Decomposition of lignin compounds from oil palm empty fruit bunch using ilmenite
Authors: Natsir M , Ansharullah A , Maulidiyah M , Herikiswanto H , Sari A , Salim L O A , Nurdin M 
Published: May 2021

Abstract
Decomposition of lignin compounds into monomers from oil palm empty fruit bunches (OPEFB)has been successfully carried out. The purpose of this study was to determine the use of ilmenite as a lignin decomposerof OPEFB and to analyze the compounds produced using GC-MS method. The stages of the study consisted of preparation of ilmenite, pretreatment process of OPEFB, characterization of lignin isolates using FTIR, analysis of lignin content by UV-Vis, and photodegradation of lignin by GC-MS. Ilmenitewas known to have a potential for decomposing the lignin compound through a photodegradation reaction, in the presence of ultraviolet light. The results of this study indicated that a time of five hours decomposition could have degraded lignin up to 50%. The longer the degradation time, the more lignin was degraded to produce materials in the form of phenolic compounds, furan compounds, benzene derivatives and carbon compound derivatives from lignin monomers. One of the benzene derivatives obtained was 3,4-di (methoxycarbonyl) benzoic acid (C11H10O6).
Effect of pH and Extraction Time on Isolation Proteins from Red Kupang (Musculita Senhousia)
Authors: Santi S S , Maulida F , Khumairoh S , Rahmani TPD 
Published: May 2021

Abstract
Red Kupang (Musculista senhausia) is one of the fisheries resources included in the bivalve class. Red Kupang is commonly found in the waters of Surabaya, Sidoarjo, Pasuruan, and the coast of the Madura Strait. The nutritional components contained in red mussel meat include 75.48% water content, 1.93% ash content, 15.02% protein, 6.17% fat, and 1.41% carbohydrate. The nutrient content of red mussels that can be utilized is protein. So that red mussels can be used as an alternative source of animal protein. For this reason, this research is carried out namely isolation of proteins against red mussels. Isolation can be carried out by means of extraction, where the pH and time of extraction affect this process. The research began with washing and drying the red mussels at 40oC until a constant weight (± 6 hours) was obtained. The second stage is making red mussel flour with 60 mesh particle size. The third step is the isolation of red mussel protein by extraction process that is 50 grams of red mussel flour homogenized in aquadest with a ratio of 1:10 w / v, then extraction is carried out at an alkaline pH (pH: 9, 10, 11, 12 and 13). at a temperature of 40 oC using a hot plate stirrer for 10, 20, 30, 40 and 50 minutes. The results obtained the best conditions at pH 11 and 50 minutes extraction time with a protein content of 72.70%.
Spatial Analysis of Water Springs Potential in Sub Drainage Basin Hulu Jeneberang South Sulawesi Province
Authors: Baharuddin I I , Badwi N , Darwis M 
Published: May 2021

Abstract
This study aims to describe the potential of water springs in the Sub Drainage Basin Hulu Jeneberang using remote sensing and Geographic Information System. There are 5 variables taken into consideration: ranfall intensity, topography, groundwater basin, fault density dan vegetation density. The results showed that there are three classes of water springs potential. Most of the area are in the moderate class, covering an area of ± 233 km2 (59.44%). The high potential class are scattered around Bili-bili Dam and the upstream areas of Sub Drainage Basin Malino, Takapala, and Sub Drainage Basin Kaosisi with an area of 77 km2 (19.62%), while low potential class covering area of 82 km2 (20.92%). In the medium class area, the water only flowing in the rainy season and soon afterwards, but not in the dry season.
The Linearity of Oil Palm Plantations Owned by State-Owned Enterprises and Private Oil Palm Plantations to Production using the PLS Warp Application Approach
Authors: Maksum A , Lubis A , Muda I 
Published: May 2021

Abstract
The potential of Crude Palm Oil (CPO) as raw material for the downstream industry is urgently needed by the world. Indonesia as the number 1 CPO producing country in the world plays a major role in supplying CPO raw materials to various parts of the world. CPO is produced from oil palm plantations, both from state-owned companies and private companies. Researchers are interested in knowing the size and production of palm oil in Indonesia. This study examines the effect of total land area and oil palm production using the Linearity approach with the Warp PLS test tool. The study observed data from 1970 to 2016. Hypothesis testing was carried out by using PLS Regression. The results show that there is an effect of the amount of land area of the government and private sector on oil palm production using the Linearity approach.
Study of Soft Soil Strength Using Combination of Wood Pile and Woven Plastic Bottle
Authors: Hairulla  , Betaubun Herbin F , Glandino M , Budianto E 
Published: May 2021

Abstract
Roads are needed To connect one location to another, but not all of them can be ascertained to have good land carrying capacity. The construction of a road body on land that has less bearing capacity (soft land) results in a large decrease and lateral movement. Soft soils are soils that if not carefully identified and investigated can cause problems of instability and long-term decline that cannot be tolerated, they have low shear strength and high compressibility. The method used in this research is experimental method. The test is carried out by looking at the deformation that occurs in soft soils which are not reinforced and in soft soils that are reinforced using plastic bottles woven on a wooden bus and with varying depths of flakes that are 10 cm and 20 cm, with a diameter of 10 cm wood pits. From the results of laboratory testing it is known that the combination of materials from woven plastic bottles and wood buses can reduce the deformation that occurs on soft soil. Deformation that occurs in soils not reinforced with a load of 4 kN is 25.89 mm, while the deformation that occurs in soils that are reinforced using woven plastic bottles on a bus wood pile and with a depth of 10 cm and 20 cm piles with the same load of 4 kN are 8.68 mm, 14.35 mm and 15.62 mm.
Market Share of Groupers through Floating Net Cage Technology in Selayar Archipelago Regency
Authors: Sajriawati  , Elviana S , Sunarni  , Wairara S M B S , Panga N J 
Published: May 2021

Abstract
Market share is one indicator of increasing marketing performance of a fishery product. To support the sustainability of the production stock and market share of grouper, cultivation technology is carried out through floating net cages. This market share is usually expressed as a percentage (%), so the analysis of the market share referred to in this study is useful to find out the percentage of market potential for grouper fishing. This research was conducted for 6 months, starting in August 2017 until January 2018 which is located in Selayar Archipelago Regency. The research method used was a survey method by taking research samples namely fishermen of grouper floating net cages, collectors, local traders, wholesalers, and exporters in Selayar Archipelago Regency. The results showed that the average local market potential of grouper fish (live and dead / fresh condition) through floating net cage culture technology was IDR 27.576.045.000, greater than the export market potential of only IDR 17.166.735.000. While the market share (local and export) of live grouper fish through floating net cage culture technology is IDR 52.046.550.000 per year (58,16%) greater than the market share (local and export) of dead grouper or fresh conditions that are only IDR 37.439.010.000 per year (41,84%).
E-Lebbami: An Innovation of Information Technology in Services at DPMPTSP of Makassar City
Authors: Rukmana Novayanti Sopia , Ismail Ismaniar , Sakawati Herlina , Sulmiah  
Published: May 2021

Abstract
The take and give phenomenon between the community and the government is a consequence of a convoluted, inefficient and ineffective pattern of service delivery. Therefore, in addition to improving government management, the government apparatus also needs to be continually improved through public service innovation. This study aims to describe the process of developing public service innovations carried out by Investment Office and One Stop Integrated Services (DPMPTSP) and identify the factors that influence public service innovation implemented by DPMPTSP Kota Makassar. The research method used is descriptive qualitative. The researcher will explain the research problem in detail, namely the innovation process and the factors that influence it. The collection of data obtained through direct observation of the object of research and in-depth interviews (in-depth interviews) with resource persons. Data processing using the model of Miles and Huberman (1992). namely: data reduction, data presentation, and drawing conclusions /verification. Based on the results of the study, it can be concluded that the innovation development process carried out by DPMPTSP Kota Makassar can be categorized as a radical innovation because it makes fundamental changes in public services or the introduction of completely new ways in the organizational and service process. This can be reflected in the birth of the E-Lebbami application, where the licensing service application utilizes the development of information technology. However, there are factors that become obstacles in this innovation process, namely the dependence on certain figures in providing innovation ideas.
Optimization of Orifice Metering Station Construction with Time Cost Trade Off Methods
Authors: Ginting Muhrowi Afrizal , As’adi Muhammad , Fajriah Nur 
Published: May 2021

Abstract
Delay is a common problem in project. In case of building project, the delay in project completion means that the user has to pay penalty corresponding to contractual agreement with the host. The construction of the Seberida Metering Station Engineering Procurement Construction & Commissioning (EPCC) project has been delayed. Based on the project’s physical progress scheduling report. The user demanded by the host to complete the project on time. One solution that can be done to overcome the project delay is to accelerate the duration of the project. However, the acceleration of the duration must be carefully calculated so that the project can be completed on time and the additional costs incurred as a consequence of reducing the duration do not swell. This Research uses the Time Cost Trade Off (TCTO) method as a solution to overcome delays, namely the method of scheduling projects by exchanging time and costs. From the results of the analysis with the Time Cost Trade Off method, it was found that the construction of the Metering Station was accelerated for 50 days, from the total duration of the project which normally takes 180 days to 130 days with an additional cost of $ 80,047.01.
Analysis and Solution of The SEIRS Model for The Rubella Transmission with Vaccination Effect using Runge-Kutta Method
Authors: Asri M , Sidjara S , Sanusi W , Side S , Pratama M I 
Published: May 2021

Abstract
Rubella disease is an infectious disease transmitted through the respiratory tract caused by a virus. In some cases, there are diseases that can enter an endemic condition, which is a condition in which the outbreak of a disease in a certain area over a long period of time. This condition can be modeled mathematically by using certain assumptions which will then seek for analytical and numerical solutions. This type of research is a literature study. This study examines the theory and application of the Runge-Kutta method in analyzing the spread of Rubella with the effect of vaccination. The Runge-Kutta method is widely used in solving ordinary differential equations and is more accurate than the Euler method. In this study, two methods were used to analyze it, namely the Runge-Kutta Order 4 and Order 5 methods which were used to analyze and compare the numerical results obtained, and the aim of the study was to obtain and interpret mathematically a mathematical model of the spread of Rubella’s disease with the effect of vaccination. and comparing the results obtained from the numerical solution using the Runge-Kutta Order 4 and Runge-Kutta Order 5 methods simulated with Maple software 13. From the results of this study, the results obtained in the 1st iteration of the numerical solution model for Rubella’s disease using the Runge-Kutta Order 4 is the value of 푆1 = 8771655, E
1 = 142, 퐼1 = 38, and R
1 = 30. While the results in the first iteration of the numerical solution model for Rubella’s disease using the Runge-Kutta Order 5 method were that the values of 푆1 = 8771759, E
1 = 142, 퐼1 = 37, and R
1 = 30 were obtained. So it can be concluded that the Order 5 Runge-Kutta is better than the Order 4 Runge-Kutta in predicting the state rate of the Rubella disease case population in the Suspectible, Exposed, Infected, Recovered, Suspected (SEIRS) model. Because the image / graph of Order 5 Runge-Kutta is more like / closer to the results of the analytical simulation using maple 13 software, which is as many as 27 infected individuals.
Mathematical Knot Sematic Logic:Theory and Example in Surah Al-Kahf
Authors: Ja’faruddin  , Chen Wen-Haw , Khaerati  
Published: May 2021

Abstract
Start your abstract here Knot semantic logic theory is a new idea to explain the symmetry structure of a literature. The methodology used in this research is the combination of Theme-Rheme framework, Paltridge’s classification of thematic progression and symmetry diagram mapping. The results of this research are the establishment of knot semantic logic theory and the application to analyze the symmetrical structure in Surah Al-Kahf. After applying this theory to Surah Al-Kahf resulting that the chapter contains 9 groups form symmetrical structure. The first theme on this Surah is about Believers, non-believers and consequences connected to the last group with the similar theme. The theme of the second group is about self-quarantine mirrors to the second to the last group about lockdown. The third theme is about Patience and its reward related to the seventh group. The test of wealthyis the theme of the fourth group which mirrors to the sixth group talking about provision as a sign. Finally, the fifth group as the central of this chapter states that Quran has provided many lessons and guidance for human beings. Surah Al-Kahf is knot chapter with a mathematical symbol :
Detecting Spatial Autocorrelation for a Small Number of Areas: a practical example
Authors: Aswi Aswi , Cramb Susanna , Duncan Earl , Mengersen Kerrie 
Published: May 2021

Abstract
Moran’s I is commonly used to detect spatial autocorrelation in spatial data. However, Moran’s I may lead to underestimating spatial dependence when used for a small number of areas. This led to the development of Modified Moran’s I, which is designed to work when there are few areas. In this paper, both methods will be presented. Many R programs enable calculating Moran’s I, but to date, none have been available for calculating Modified Moran’s I. This paper aims to present both methods and provide the R code for calculating Modified Moran’s I, with an application to a case study of dengue fever across 14 regions in Makassar, Indonesia.
Biplot and cluster analyses to describe some infectious diseases in Southeast Sulawesi
Authors: Agusrawati  , Adhi Wibawa Gusti Ngurah , Yahya Irma , Abapihi Bahriddin 
Published: May 2021

Abstract
Infectious diseases are caused by microorganisms that can be transmitted directly or indirectly to humans. Understanding the characteristics of these diseases helps us to prevent and to overcome them. This study aims to discuss the profile of districts and cities in Southeast Sulawesi according to the spread of several types of infectious diseases by employing biplot and cluster analyses. The results showed that when the prevalence of tuberculosis is fairly high in a district or city, the HIV’s also follows. However, if these two diseases occur barely then the prevalence of malaria tends to be high, and vice versa. HIV is more likely to occur in Kota Kendari (Kendari City) and then followed by Buton and Konawe. In contrast, District of Muna with the lowest incidence of HIV and tuberculosis indicates the high prevalence of Malaria. The other types of diseases, such as pneumonia, DHF, and filariasis, are commonly found in Konawe Selatan and Kolaka.
Business Intelligence System using Simple Moving Average Method (Case Study : Sales Medical Equipment at PT. Semangat Sejahtera Bersama)
Authors: Swari MHP , Qusyairi M , Mandyartha EP , Wahanani HE 
Published: May 2021

Abstract
Business Intelligence is a technique or method for transforming raw data into useful and meaningful information for a company. There are the various utilization of BI such as for product pricing determination, placement of goods, or sales forecasting. Some problems that often occur in a company, especially in a company engaged in the sale of goods is the difficulty of processing data with an equal form and the amount of data to be analyzed, as happened at PT. Semangat Sejahtera Bersama. One of the problems that occur in the company is the difficulty of forecasting stock of goods that must be stored in the warehouse. Limited warehouse capacity causes each branch is required to wisely perform demand for stocks of goods that must be stored in warehouses that have limited capacity. The process on this study is building a dashboard to generate reports and sales trends. Through this report, it can be seen sales trend by month, or season in Indonesia, given the season is one factor that determines the type and number of items sold in a period. The system will generate the forecast type of goods that must be prepared in each branch based on sales data in some determined data range. Sales prediction is generated through computation process using a simple moving average method. This method works by doing the calculation of the average value of sales value by the number of previous periods so it is able to display sales trends that occur.
The concept of equilibrium of tough objects in saoraja lapinceng traditional house in barru regency
Authors: Arsyi Nurul , Rappun Imanuel Iglesyas , Vausia Vebrianti , Hasyim Mutahharah 
Published: May 2021

Abstract
The Saoraja Lapinceng traditional house in Barru Regency has social, cultural and religious values. In addition, this traditional house has a physical value, namely the concept of rigid body equilibrium. The research objective is to analyze the concept of rigid body equilibrium at the Saoraja Lapinceng traditional house. The research method used is the traditional review. Data obtained from journals, books, and websites that are relevant to this research, which are then reduced, presented, verified, and conclusions drawn. Based on the results of the research, it is obtained: (1) The support poles (Aliri) in the main building are rectangular in shape following the Bugis Sulapa Appa philosophy and an odd number with the total force and torque acting on the poles equal to zero, the support poles cause the main building to not move (balance). (2) The foundation of the umpak (Pallangga) is rectangular and has an odd number of values of life and death for the Buginese community where Pallangga functions to make Aliri immobile (balance). (3) Attic support (Pattolo’) following the width of the house gives Aliri and Arateng a style which is the same as the force received by Pallangga, thereby helping Aliri to balance the main building. (4) Floor support (Arateng) functions to connect Aliri with other Aliri in the long direction of the house so that the force and torque to the main building body are equal to zero (balance). (5) The stairs (Addengeng) are made with a slope of 30 ° to 45 ° from Aliri, so that the vertical force from the floor and the horizontal force from the wall, balances the ladder when given Addengeng’s load.
Magnetic susceptibility of surface sediment in the Tallo tributary of Makassar city
Authors: Tiwow V A , Subaer  , Sulistiawaty  , Malago J D , Rampe M J , Lapa M 
Published: May 2021

AbstractActivities along the tributary of the Tallo river cause discoloration and unpleasant odors in the river water. This condition indicates that the river was polluted by anthropogenic waste. Therefore, a scientific study was conducted to determine the environmental conditions of the Tallo tributary through a preliminary study of the mineral characteristics of the surface sediments based on magnetic susceptibility data. The surface sediment was taken and its magnetic susceptibility measurements were carried out, followed by the interpretation of mineral types, element content, the presence of superparamagnetic minerals, and magnetic grains. The results showed that the minerals contained in the sediment samples were predominantly ferrimagnetic. The elemental content of the sediment samples indicated that Fe, Mn, and Cr were classified as heavy metals. Traces of the presence of superparamagnetic minerals show almost none. Meanwhile, the magnetic susceptibility values at low and high frequencies are identical, indicating that the grains contained in the sediment samples are multi-domain (MD), where the dominant magnetic minerals come from anthropogenic minerals.