bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimization of aeration time on GAS-SBR system to remove organic content in wastewater
Authors: Nareswari A , Ratnaningsih R , Tazkiaturrizki T , Hadisoebroto R 
Published: March 2021

Abstract
In general, chicken slaughterhouses have slaughtering capacity of more than 40,000 chickens per day, resulting in high volume wastewater with high BOD and COD concentration. Therefore, appropriate wastewater treatment technology is needed. Granular Activated Sludge that uses Sequencing Batch Reactor (GAS-SBR) has ability to treat wastewater with high organic content. The study is conducted to analyze the ability of GAS to reduce organic content with variation of aeration time in reaction stage on SBR. Formation of Granular Activated Sludge (GAS) was cultured by reacting activated sludge and using a stirring of 20 rpm. SBR had a total work volume of 45 liters and was operated in 5 stages, namely the filling, the reaction with aeration, the settling, the decantation, and the stabilization stage. In this study the initial COD concentration in chicken slaughterhouse effluent (RPA) was 5440 mg/L. The result of the study was that highest removal of BOD and COD parameter occured at 3 hours’ aeration time with removal efficiency 75% and 72%, while for TSS was at 5 hours’ aeration time with removal efficiency 65%. It could be concluded that GAS in SBR system could be applied to remove high organic content parameters in wastewater.
Mobile web model on the basis of character building for elementary school students in Jakarta in Indonesia
Authors: Rihatno T , Marini A , Safitri D , Nuraini S , Umasih U , Herlina H , Sutrisno S , Putra ZE F F 
Published: March 2021

Abstract
The aim of this research is to develop mobile web model on the basis of character building in the classroom for elementary school students in Jakarta in Indonesia. The method of this research is Research and Development. The research product of mobile web model on the basis of character building in the classroom for elementary school students in Jakarta in Indonesia was developed using 8b website builder with URL http://8b.com. The result of validation of expert, limited, and extensive field test related to content utility, navigation, simplicity, loading speed, security, interactive, efficiency, and learnability reached 3.69, 3.75, and 3.73 from maximum score 4 showing that this product has already been valid, practical, and effective. The conclusion of this research is that mobile web model on the basis of character building in the classroom developed in this research is practical and effective to be implemented for elementary school students in Jakarta in Indonesia.
Harvestnesia: Partnership-based start-up to advance agriculture in Indonesia
Authors: Alkausar R , Susilo A J , Nuphanudin N , Fajar T I , Rachmawati E 
Published: March 2021

Abstract
Indonesia is a country with great agricultural potential, natural potential geographical conditions in Indonesia making Indonesia an agrarian country. Nevertheless, the agricultural sector in Indonesia still faces many problems ranging from farmer regeneration, land-use change, modern agricultural technology, to fluctuating commodity prices. For this reason, an integrated model or system is needed which can overcome the problems of farmers from upstream to downstream. The model offered is Harvestnesia, a Start-up based on partnerships with farmers. Through this partnership, farmers will be given assistance to be able to improve the quality and quantity of production, besides this Start-up also helps in terms of integrated marketing and distribution, through this integrated system partners can find out the needs and demands of the market so that there is no surge in supply or demand so that price fluctuations can be suppressed. Through this model, it is expected to be able to restore the passion of agriculture in Indonesia specially to attract young people to work in agriculture.
Fipronil removal at various temperature and pollutant concentration by using Pseudomonas aeruginosa and Brevibacterium sp. in liquid media
Authors: Imaniar K R , Tazkiaturrizki T , Rinanti A 
Published: March 2021

Abstract
Fipronil is one of organochlorine pesticide with persistent nature in the environment. Fipronil can be biologically removed by utilizing bioremediation that utilizes microorganism activity. This research was conducted to remove fipronil in Stone Mineral Salt Solution (SMSs) liquid media by using Pseudomonas aeruginosa and Brevibacterium sp. with temperature and fipronil concentration as independent variable. Fipronil removal was conducted with temperature variations of 25, 30 and 35°C and fipronil concentration of 30, 40 and 50 mg/L. Based on the conducted Gas Chromatography-Mass Spectrometry (GC-MS) test, an optimal fipronil removal was achieved on 30°C temperature for three days with fipronil concentration of 40 mg/L. This finding shows that Pseudomonas aeruginosa and Brevibacterium sp. are able to remove fipronil with 65% efficiency, so that this research can be carried further to acknowledge physical parameter that influence fipronil removal in liquid media.
TernAkses: Livestock investment based on crowdfunding through custodial services and millennial farms planning
Authors: Afandi M F , Khusaini M A , Nuphanudin N , Purwanto H , Prakoso K A 
Published: March 2021

Abstract
Gross Domestic Products in a country becomes an important focus in measuring the level of welfare of the people. One of the sectors contributing to Indonesia’s high GDP is the agriculture sector in the livestock sub-sector. Indonesia is able to contribute from the livestock sub-sector to meet the food needs of the community at large. However, problems arise in accessing capital and sales of livestock products that make the livestock sub-sector’s contribution fluctuate each year, so that Indonesia must import livestock products to meet public demand. The development of crowdfunding-based financial technology as a breeder capital strategy through capital contributions supported by the integration of livestock partners and millennial farms planning. Through innovations based on the digitalization of financing and marketing of livestock products and supported by a positive trend of internet growth. TernAkses is an investment service innovation and sale and purchase of livestock products based marketing. Access can solve existing problems through funding programs, partnerships, training, assistance, marketing and livestock sharing. TernAkses uses websites and applications that can be accessed through a broad range of community smartphones. In its application, the synergy of related stakeholders is needed to be able to implement the concept.
Behavior Analysis of Sumatran tiger (Panthera tigris sumatrae, Pocock, 1929) in Taman Rimba Zoo Jambi
Authors: Kurniawan B , Ningsih S , Susanti T , Farikhatin F 
Published: March 2021

Abstract
The Sumatran tiger (Panthera tigris sumatrae) is an endemic animal on the island of Sumatra that is nearing extinction. Ex-situ conservation efforts such as at zoos have an important role in preserving and increasing populations through breeding and maintenance programs. Habitat changes can cause changes in daily behavior patterns because they have different habitat characteristics. The purpose of this study was to determine the habitat characteristics and daily behavior of Sumatran tigers in the Taman Rimba Zoo Jambi. This research was conducted for 12 hours / day starting at 7:00 to 19:00. There are two female Sumatran tigers used as objects in this study. The description of ex-situ habitat characteristics is done through direct observation and literature reference as a comparison. Daily behavior of Sumatran tigers includes eating behavior, resting behavior, social behavior, and others. Ex-situ habitat characteristics generally have similarities with their natural habitat to meet the basic needs of tigers. The results of recording daily behavior in the parent and cubs have a value with a percentage of feeding behavior (2.2% and 2.92%), resting behavior (87.92 and 85.97 %%), social behavior (3.43% and 4.05%), and others (6.43% and 7.06%).
The feasibility of combined coagulation flocculation and constructed wetland as green technology for sustainable leachate treatment
Authors: Rahmadyanti E , Saputro M S H , Hidajati N W 
Published: March 2021

Abstract
This study aims to determine the feasibility of coagulation flocculation processing using Moringa oleífera seed powder (MOSP) and vertical sub surface flow constructed wetlands (VSSFCW) to process leachate landfill (LL). The method used is to do a jar test to determine the optimum conditions and then proceed with VSSFCW processing. In the coagulation flocculation process, the optimum conditions were obtained with a dose of 175 mg/L, pH 6.5 and a speed of rapid mixing of 100 rpm for 10 minutes. This optimum condition is able to reach the percentage of COD, turbidity and Mn removal of 35.27%, 69.48%, and 94.83%, respectively. However, the effluent value is still above the Minister of Environment regulation standard No. 5/2014 regarding the standard quality of wastewater for the parameters of COD and Mn that is equal to 584.19 mg/L for COD and 6.98 mg/L for Mn, while for turbidity meets the standard of 69.83 mg/L. Further processing with VSSFCWs can improve the quality of LL effluent resulting from coagulation flocculation 66.36 mg/L; 4.97 mg/L for turbidity and 0.12 mg/L for Mn or with efficiencies of 88.64%, 92.88% and 98.22%. These results were obtained at the optimum HRT conditions for 10 days.
Student creative thinking skills of environmental change material using group investigation learning model with interactive multimedia
Authors: Maspupah M , Muhlas M , Rahmawati D , Alawiyah R N , Juniardi H , Nurlaela A A 
Published: March 2021

AbstractGroup investigation learning model are used to overcome the fundamental problems of students’ creative thinking abilities in environmental change material. This study aims to describe the planning, analyze implementation, and test the hypothesis of the application of the group investigation model assisted interactive multimedia on students’ creative thinking abilities on environmental change material. The research method used was a pre-experimental design with one group pretest-posttest. The sample was determined by purposive sampling techniques in two classes, namely class X IPA-4 and X IPA-5. The results showed that the validation of the RPP 77.24%, 82% LKS and 85% Interactive Multimedia. The average implementation of teacher activities in class X MIPA 4 is 87.50% and X MIPA 5 90%. While the average activity of student in class X MIPA 4 79.11% and X MIPA 5 79.69%. The results of hypothesis testing using paired t test in class X MIPA 4 obtained t count (19.70)> t table (2.03) and in class X MIPA 5 t count (19.05)> t table (2.04). The conclusion is t count > t table, then H0 is rejected and H1 is accepted, meaning that there is a significant difference between of students’ creative thinking abilities in environmental change material before and after the application of the group investigation models assisted interactive multimedia.
Utilization of selenium in baglog waste to increase antioxidant and storability of broccoli
Authors: Rachmawati Y S , Hidayat C , Supriadin A , Imbarwati S 
Published: March 2021

Abstract
Baglog waste contains cellulose, which can absorb selenium. Selenium can increase antioxidants and vegetable storability. This study aims to determine the selenium content of baglog waste in increasing antioxidants and broccoli storability. The study was conducted from May to July 2019 in Cipadung Village, Cibiru District, Bandung using the Completely Randomized Design (CRD) consisted of 5 treatments and 5 replications. The treatment was media A = 100% baglog waste, B = baglog waste mixture 25%: 75% rice husk charcoal, C = Baglog waste mixture 50%: 50% rice husk charcoal, D = Baglog waste mixture 75%: 25% rice husk charcoal, E = 100% rice husk charcoal (control). The results showed that the combination of 75% baglog waste media with 25% rice husk charcoal was able to increase antioxidants by IC50 28.34 ppm and storability for four days at room temperature. 75% baglog waste with 25% husk charcoal can be used as a medium for supplying selenium to get good antioxidants and storability of broccoli.
The field trial of Kelase-Tri Kaya Parisudha platform to realize Hybrid-Superitem patterned blended learning for mathematics subject
Authors: Ariawan I P W , Divayana D G H , Suyasa P W A 
Published: March 2021

Abstract
The success of learning mathematics in the cognitive, affective, and psychomotor domains is difficult to realize if the use of blended learning in learning mathematics is not carried out optimally. This research had the main objective to provide information about the field trial results towards the platform usage of Kelase which was integrated with Tri Kaya Parisudha concept in order to realize blended learning which patterned of Hybrid-Superitem to support the mathematics learning effectiveness at the level of senior high schools/vocational schools in Bali. This research applied a development approach with the development stages, which followed the Borg & Gall design by focusing on the stages of field trial and field trial revision. Subjects who were involved in conducting field trials in this study were 184 people consisting of education experts, informatics experts, teachers, and students who came from several senior high schools/vocational schools which there were in Bali Province. The data collection tools were in the form of field trial questionnaires. The quantitative descriptive by comparing the effectiveness of the field trial results with the effectiveness standard that was referring to eleven scales was the data analysis technique used. The field trial results showed an effectiveness percentage average was 88.49% so that the platforms which developed were classified as good.
Design mHealth prototyping to Eliminate Mother to Child HIV Transmission (EMTCT) in Indonesia
Authors: Siregar K N , Rikawarastuti R , Yusro M 
Published: March 2021

Abstract
Mobile health (mHealth) is the proposed solution from digital health intervention to improve the service quality to eliminating mother to child HIV transmission (EMTCT) in Indonesia. The purpose of this study is to develop a mHealth prototype for EMTCT. This study used prototyping Rapid Application Development (RAD). The external entities of the mHealth prototype consist; pregnant women as the main data sources midwives as program implementers who also work as information producers, contact person for EMTCT at the primary health center and health office, as the program manager for dashboard users. Nine data on longitudinal EMTCT services are antenatal visits, pre-test counseling, HIV testing, the results of HIV status, post-test counseling, antiretroviral therapy (ART), adherence for ARV therapy, viral load, and HIV status in children.
Increasing accuracy of the epilepsy signal classification
Authors: Hindarto H , Eviyanti A , Abror M 
Published: March 2021

Abstract
Epilepsy is a condition that can cause a person to experience seizures repeatedly. Epilepsy can attack someone when there is damage or changes in the brain. This study researchers tried to use sampling techniques as a feature of extracting epilepsy signal features and the K-NN method to identify epilepsy signal patterns. The data of this study took epilepsy signal data from the University of Bonn’s Epileptologie clinic which consisted of data set A, open eye normal signal, set B normal closed eye signal, set C in epilepsy zone, set D enter epilepsy, set E seizure epilepsy. In this study, researchers tried to classify data set A, data for normal people and data set E, data for people who have epilepsy. Data set A consists of 100 EEG signals and data set E consists of 100 EEG signal data. The data used are data for the training process as much as 50 Epilepsy signal data and data for the trial process as many as 50 Epilepsy signal data. In the trial process the classification results reach 100% accuracy. The trial process uses the value of K = 1 to the value of K = 9.
Decision support system algorithm for the beneficiary of uninhabitable housing funds
Authors: Ramdania D R , Subaeki B , Nugraha E , Muliawaty L , Ramdhani M A 
Published: March 2021

Abstract
Poverty is one of the big problems facing the people of Indonesia. This problem evidenced by the existence of 3.4 million Indonesians living in settlements that are not livable. This problem is also a concern of the government by providing financial assistance for homes that are not livable. But in reality, the available aid is often not on target, not on a budget, and not on time. The purpose of this research is to implement the El Choination El Choix Traduisant La Realite (ELECTRE) algorithm as a decision support system to provide recommendations for potential recipients who deserve assistance from the government. System testing is done by inputting 46 prospective beneficiary data with predetermined criteria. The results showed the ELECTRE algorithm was able to provide recommendations with an accuracy rate of 86.9%. This result indicates that the decision support system using the ELECTRE method can use as an alternative to the efficiency of determining the prospective beneficiaries of uninhabitable housing in Indonesia.
Development of interactive CD media on processing of continental pastry
Authors: Rusilanti R , Sachriani S , Yulianti Y , Mutiara M 
Published: March 2021

Abstract
The purpose of this research was to produce an interactive CD media on the processing of continental pastry to improve the quality of learning in continental and culinary courses. The quality of media feasibility is based on the assessment of media experts who consider the criteria “good,” with the percentage criteria earned at 77.5%. The evaluation of media experts who review the rules “excellent” has a value of 90%. This media can be considered “feasible” as it can be used for learning in terms of media and technical aspects.
Design of gallery web-based space booking system as media service
Authors: Murtiyoso O , Athian M R , Mujiyono M , Ichsan I , Adi S 
Published: March 2021

Abstract
Aim of this study is 1) to create a web-based booking system as a service media at Studio and Gallery B9 Department of Fine Arts, Semarang State University. 2) to implementing a trial-based studio and gallery lending system as a supporting facility for students of the Department of Fine Arts, Semarang State University. Methodology that used is SDLC, which is used as an appraiser on the website. After using a questionnaire for 22 students. The results obtained that the website-based lending system has good communication effectiveness, this is evident from the results of the questionnaire showing 86% communication efficiency. The problem of the model and visual appearance is vital as a representation of the Department and University, it is considered to have an aesthetic level that is 89% efficient and easy to use. The features on the website are also interesting so they can show 89% results. After testing the loan, 82% said they were satisfied using this feature. The average input provided is giving a checklist about the facilities that are owned in each studio.
Study on information system infrastructure in Probolinggo by using Self Organizing Map
Authors: Rohadi E , Amalia A , Qoyyimah R F D , Ardiansyah R , Siradjuddin I 
Published: March 2021

Abstract
The infrastructure of information systems becomes one of the main components that support government managements system. This study is addressed to achieve the infrastructure information mapping in District of Probolinggo. The proposed of the research is getting an infrastructure information map of 29 districts administered that become its reliability recommendation. The system information as website is developed for operational purpose. The Self Organizing Map (SOM) as one of neural networks is used. The clustering results by in field observation data show that the infrastructure information system of 29 districts administered are defined by 3 clusters, specifically 3 districts administered have good infrastructure, 20 have fair infrastructure and 6 districts administered have less infrastructure. Furthermore, the clustering by using SOM shows that have 1 good, 22 fair and 5 less, respectively. As a result, the accuracy of both clustering is less than 70 %. That means, SOM still need in field observation data to evaluate the recommendation.
The influence of animal name introduction learning application in English for Kindergarten on Android phones
Authors: Denni I , Hamdani N A , Bhakti D D , Maulani G A F , Adhari L 
Published: March 2021

Abstract
Preschool or Kindergarten education is a formal of education for children between the ages of 4-6 years. The main task as a preschool educational institution is to prepare children by introducing knowledge, attitudes, behavior, skills and intellectuals so they can adapt to real learning activities in elementary schools. At present most of the learning in schools is still used teaching methods using media guidebooks, as well as learning carried out education of preschools. In preschool children learning there are basic material with animal themes such as the introduction of the names of animals in the vicinity in accordance with basic competencies to know the types and names of animals. Whereas at present most of the learning in schools is still used teaching methods using guidebook media. Adobe flash or is a multifunctional software. Apart from its initial function, which made it easy to create web animations, it turned out that Flash was developing so rapidly that it could be utilized as an extraordinary multi-media software. Adobe Flash be utilized as an effective game creation program. It is hoped that this research children’s educational game can be useful for children in Indonesia of preschool age.
The web-based estimation of motorcycles sales using linear regression method
Authors: Indriyanti A D , Prehanto D R , Prismana I G L P E , Nuryana I K D 
Published: March 2021

Abstract
The purpose of this research is to use the linear regression method to predict motorcycle sales results, the variable used is the period as an independent variable (X) and sales as the dependent variable (Y). The data used in the calculation of linear regression is the last four years data, from January 2014 to December 2019. The implementation of the motorcycle sales forecasting system is to predict sales in the coming months. To find out the level of accuracy of the prediction error calculation is needed so that it is known how many error levels are obtained. Calculation of forecasting errors using Mean Absolute Deviation (MAD) and Mean Absolute Percentage Error (MAPE). The results of this study are web based motorcycle sales prediction systems using linear regression method. From this system, motorcycle sales forecasting is obtained the following month. In January 2015 with forecasting results of 12.63. To find out how accurate the forecasting level is, the error calculation result using Mean Absolute Deviation (MAD) is 3.40 and Mean Absolute Percentage Error (MAPE) is 44.33%. The results show that the error rate is small and the forecasting results are close to accurate.