bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of The Season Effect on The Shallow Ground Water Parameters using Multivariate Statistics
Authors: Octova Adree , Afrinaldi  , Gusman Mulya , Anaperta Yoszi Mingsi , Ramadhan Fachrul Rozi 
Published: December 2019

Abstract
Problems related to water resources are still a major concern in some regions in the tropical climate. The effect of seasonal changes on the physical parameters of water quality is quite clearly visible. This certainly can pose a serious risk if it takes place in the long term towards human health and the environment without conducting intensive studies. The approach of this study is to draw the relationship between seasonal changes and physical parameters of water quality in 185 points spread across 11 sub-districts. Water parameter data was analyzed using multivariate statistics. Based on multivariate analysis in the dry season, the regression equation Y = 343.482 X1 + 0.039 X2 - 0.016 X3 + 12.961 X4 + 124.773 X5 - 815.208 and rainy season Y = 273.119 X1 + 0.025 X2 + 0.336 X3 + 15.731 X4 + 39.731 X5 - 745.119 (X1 salinity, X2 resistivity, X3 depth, X4 TDS, and X5 temperature, with bound parameters or Y is conductivity). Based on the health standards of the Indonesia Health Ministry concluded that regions showed the zone of extreme changes is close to the coast.
The Effect of Project Based Learning Towards Student Achievement in Electrical Machines and Energy Conversion Subject
Authors: Ambiyar Ambiyar , Afifah Nurzamaliah 
Published: December 2019

Abstract
The purpose of this study was to reveal the project-based learning model with conventional learning models of student learning outcomes. This type of research was quasi experimental research design. Quasi experiments used post-test only design with two random groups for experimental and control classes. The sample in this research was 64 students. The instrument used to measure student learning outcomes is a multiple choice objective test with five option. Data were analyzed using t test. The results of data analysis showed that there were significant differences in the learning outcomes of Electrical Machine and Conversion Energy subjects that were significant between students in the experimental class taught using the project based learning learning model for students in the control class taught by conventional learning models. The average value of experimental class is 82 is higher than the average control class is 73. Based on the above two learning activities, it can be concluded that using the project based learning model further improves students learning outcomes in Electrical Machine and Conversion Energy subjects compared with conventional methods of learning.
The Effectiveness of Teaching Materials using Project Based Learning (PjBL) in Concrete Stones Practice Course
Authors: Syah N , Haq S , Pratama Y F , Sarwandi  , Hutria W , Nofianti L 
Published: December 2019

Abstract
The magnitude of the impact of technological development (Industrial Revolution 4.0) has become a challenge for the world of education to continue to improve, even this situation demands very rapid change, which becomes a serious threat to the world of education, especially the vocational field. There are several problems in concrete rock practice learning such as (low student grades, not yet having teaching materials relevant to the demands of the industrial revolution 4.0, and not optimal use of technology in learning. Research development (R & D) with 4-D models (define, design, develop, disseminate) it aims to answer the challenges of the revolutionary industry 4.0 by creating effective teaching materials and learning strategies with video combination by optimizing the use of technology (smartphone). This research produces module and video that is valid (expert judgment), and effective that can evidenced from the increase in student learning outcomes (average pretest 50.72 and posttest average 86.04). Module teaching materials and video combinations are very suitable to be used for practical learning, especially in concrete stone practice course.
The Effect of Split Ring Resonator (SRR) Metamaterials on the Bandwidth of Circular Microstrip Patch Antennas
Authors: Hariyadi Tommi , Rodiah Nunung , Pantjawati Arjuni B. 
Published: December 2019

Abstract
A microstrip patch antenna is one type of antenna that is currently widely used in wireless communication systems. This antenna is an option because it has several advantages, such as its lightweight, small size and easy to fabricate. However, one of the disadvantages of this antenna is the narrow bandwidth. In this study, bandwidth will be increased in a single circle microstrip patch antenna. This increase in bandwidth aims to make the antenna designed to work for LTE band 3 applications with a frequency range of 1710-1880 MHz. Increasing bandwidth can be done using the Split Ring Resonator (SRR) Metamaterial. Antenna simulation and optimization were carried out using 3D electromagnetic simulator using FR-4 substrate with a thickness of 1.6 mm and a dielectric constant of 4.3. Based on the simulation results, obtained antenna bandwidth of 310 MHz with a frequency range of 1620 - 1930 MHz for return loss of less than -10 dB. The antenna gain is around 2.1-2.5 dBi with directional radiation patterns. It can be concluded that this antenna can be used for LTE band 3 applications.
Development and Application of ATMega 2560 Based Trainer in Supporting the Learning Process in the Faculty of Engineering State University of Makassar
Authors: Jamaluddin  , Syam H , Rahman K 
Published: December 2019

Abstract
This study aimed to determine the student’s response and the application effectiveness of ATMega 2560-based microcontroller trainers in supporting the agricultural robotics learning in the Faculty of Engineering, State University of Makassar. This study was a research and development study using ADDIE (Analysis, Design, Develop, Implement, and Evaluate) approach. The student’s response to the application of ATMega 2560-based microcontroller trainers was collected using questionnaires. The samples size of students in this study were 30 students from the Faculty of Engineering, Makassar State University. Information on the application effectiveness of ATMega 2560-based microcontroller trainers was collected from the observations results of learning outcomes, which were conducted through pre-test and post-test. The analysis results on the student’s response showed an average result of 3.65, which means that they were in a good category. The average results of the pre-test and post-test obtained for the analysis of effectiveness were 60.55 and 83.50, respectively. This showed an increase in student learning outcomes which were above the minimum standard and were in a good category. The application of ATMega 2560-based microcontroller trainers received a good response from students and was effective in supporting the agricultural robotics learning in Faculty of Engineering, State University of Makassar.
Landslide Mitigation of Banjir Kanal Semarang, with Grouting Method
Authors: Ansosry  , Rahman H.A. , Ramadhan F. R. 
Published: December 2019

Abstract
Indonesia is aprone’s country to the occurrence of mass movements. These disasters often occur in various regions, especially during the winter. Banjir Kanal is one of the locations of landslides from the observation in the field, the type of ground motion that occurs in the research area such as slump, it caused by the intense weathering of rocks and triggered by a condition of ground water level, Vibration, and human activities. Soil material at the research area such as claystone as the original soil and sandy clay stone as fill soil. The soil conditions and slope angle that very steep about 60 degree is a factors causing mass movement. The purpose of this research to determine the type of ground motion, causes and triggers of mass movement at the research area, and to know the success level of grouting methods to overcome them. The research method that used is descriptive method and experimental methods. Slope stability analysis used by the Fellenius method that calculated to determine the value of safety factor (Fs) at the study site. Based on the results of such simulations could be seen that after the implementation of grouting, soil cohesion increased.
Optimization of Digging and Loading Equipment and Hauling for Overburden Production with Quality Capacity Methods and Queing Methods in East Pit, August 2017 Period Pt. Artamulia Tata Pratama, Site Tanjung Belit, Bungo, Jambi
Authors: Gusman M , Asri Y , Prengki I 
Published: December 2019

Abstract
In the mining process, the availability of dump truck equipment and loading equipment will determine the sustainability of production which has an impact on productivity and efficiency. The purpose of this study is to optimize production on stripping the overburden using the queuing method, match factor. The location of the study was conducted at PT. Artamulia Tata Pratama, Tanjung Belit, site Bungo, Jambi in August 2017 – September 2017. The loading equipment used is the PC 1250 Komatsu Excavator and the Komatsu HD 465-7 dump truck. The simulation results of the number of dump trucks needed based on production capacity is 17 units while based on queuing theory there are 17 units. Where the actual dump trucks used were 19 units.
Augmented Interactive Wall as a Technology-based Art Learning Media
Authors: Nugrahani R , Wibawanto W , Nazam R , Syakir  , Supatmo  
Published: December 2019

Abstract
Art plays an important role in stimulating the development of the individual right brain. Art learning can improve the intelligence of individual expression, increasing sensitivity and concentration, and fostering brilliant creativity. Formal education institutions in Indonesia have not provided an appropriate portion for art learning. This causes the development of visual art in Indonesia tends to be slow and hampered. This research will reveal the potential of the Augmented Interactive Wall as a medium for expressing ideas using digital technology. This is qualitative research using observation and interviews to obtain data. The result shows that collaboration between technology and art will produce innovations that will help individuals to explore and express their ideas better, and bring them into various forms of physical, social and cultural interactions.
The Utilization of YouTube Media in Learning Antropology in Higher Education
Authors: Purnamasari I , Hafnita S D 
Published: December 2019

Abstract
Ethnic and cultural diversity in Indonesia has become a teaching material in studying Anthropology at university. But the changes that occur in Disruption Era resulted the warning of cultural elements in certain of ethnic groups. YouTube is a media that able to display various cultural videos that still exist. Utilization of YouTube as an Anthropology Learning Media makes it easy for students to access and study cultural elements in one ethnic group. The method that used in this study is descriptive quantitative using a questionnaire as a research instrument. A sample is about 60 students with a population of 100 students from the Faculty of Social Sciences. Data collection techniques is using a linkert scale.
Based on the data that obtained from the respondents, it shows that the level of student satisfaction in using YouTube as a Learning Media is very high at 50% very interesting, 25% interesting, 16,67% quite interesting, 8,33% less interesting.
The Application Of Cooperative Learning Methods In The Developing And Analyzing The Quality Of An Educational Game
Authors: Novian D , Dwinanto A , Mulyanto A 
Published: December 2019

Abstract
The purposes of this study were: (1) to develop an educational game application on the basic programming material, and (2) to reveal the quality of the developed educational game application. This research methodology was research and development. The results of this research were as follows. (1) The educational game application was developed using the Codeigniter framework and consisted of the main feature to evaluate students’ learning cooperatively by dividing students into teams, playing games, following tournaments among teams, and recognition of teams. (2) The test results showed that the developed educational game application met the ISO/IEC 25010 standards on (a) functional suitability aspect, which worked 100% and had X = 1; (b) performance efficiency, which could load web pages within 2.76 seconds, PageSpeed’s performance of 91% (grade A) and YSlow of 93% (grade A); (c) usability, with the percentage of SMKN 1 Limboto being 89.12% and SMKN 1 Gorontalo 88.18%; (d) security, with the vulnerability to attack level being at level 1 (low); (e) reliability, with the result of successful session criteria, hits and pages by 100%; (f) maintainability, which had the maintainability index value of 92.26; (g) portability, which successfully ran on four different desktop and mobile browsers.
Development of Listening Comprehension Model by Using You tube for English Students
Authors: Ismail Syofianis , Zaim M. , Mukhaiyar  , Gistituati Nurhizrah 
Published: December 2019

Abstract
Learning a foreign language by using social media is getting important because it has great potential to support student-centered learning, as it is flexible, interactive, and content–rich in nature. This research was aimed to develop an Englishlistening comprehension model by using Social Media You tube. A Research and Development methodology ADDIE was used: analyzing students’ and teachers’ needs, designing a new learning materials, Developing material, Implementing it in a group, and evaluating the existing learning materials, validating the learning materials by experts, revising learning materials, trying out the learning materials, and revising learning materials. It was found that the existing learning materials were not appropriate for the students’ characteristics and were not organized in a systematic way. Students and lecturers indicated that they appreciated enjoyable English language learning materials such as songs, stories and games using You Tube. Based on these findings a new model for developing materials was developed for English Listening Comprehension Program at the Islamic University of Riau.
Effectiveness of physical fitness model with game approach in improving physical fitness of students at gajah mada elementary school in medan.
Authors: Nurkadri  , Valianto Budi , Novita  
Published: December 2019

Abstract
This study to explore the effectiveness of a game-based physical fitness activity model in improving the physical fitness of students in Gajah Mada elementary school at Medan. The game-based physical fitness activity model as the alternative model for sport teacher to increasing desire of students to perform various forms of physical activity as stimulus to increase in cardiorespiratory strength, strength, endurance and flexibility. This study uses a pre-experimental approach methodology in the form of one group pre-test and post-test design, this fact has suported antusiasem of elementary school students during folow the model movemed. To analyse the results of the pre-test and post-test using statistical methods (t-test) to find out the significance effect. Furthermore, the results of this study show that the results of the average value of the post-test are greater than the average value of the pre-test. Thus, it was stated that the physical fitness activity model of students in elementary school at Gajah Mada Medan is effective for use in improving learning outcomes and increasing forms of physical activity as well as cardiorespiratory endurance, strength, endurance and determination of elementary school students.
Influence Of the Simulation Program Methods to the Students Learning Outcomes on the Subject Of the Microcontroller System
Authors: Edidas  
Published: December 2019

Abstract
This study aims to see the effect of program simulation methods on the learning outcomes of microcontroller systems. The microcontroller program simulation method is done in two ways, namely through hardware assembly and software assembly. Simulation through hardware devices using triner kits, while simulating through software use Proteus application software. This type of research is a quasi-experimental. The research design uses nonequivalent control group design techniques. The sample group is not randomly selected but is chosen based on the class that is already in the lecture. Learning outcomes variable (Y) while program simulation method (X). The research data analysis was carried out with Variance Analysis (ANOVA) to see the effect of the program simulation method on the learning outcomes of the microcontroller system.
Preliminary Research Development Meta-Inquiry Learning Model in the Numbers Theory Course
Authors: Harahap S D , Fauzan A , Elizar  , Arnawa I M 
Published: December 2019

Abstract
The independence of process is very important in the university, students are required to actively read, search, and analyze a problem independently. The purpose of this study was to analyze the preliminary needs of the research on the development of the meta-inquiry learning model in numerical theory, the research method used was descriptive, the results of the study were in the form of an analysis of student characteristics and objectives of the lecture material, a description of the literature needed, and a draft conceptual framework which underlies a study that is considered a supporter in the lecture process.
Developing of Mathematical Learning Devices Based on the Local Wisdom of the Bolaang Mongondow for Elementary School
Authors: Domu Ichdar , Mangelep Navel Oktaviandy 
Published: December 2019

Abstract
This study aims to develop valid, practical and effective mathematics learning tools based on local wisdom of Bolaang Mongondow using PMRI approach. The method used is the development research method which includes the stages of analysis, design and evaluation. Data collection techniques in the form of documentation, walk through, tests, observations, and interviews. Data analysis techniques used qualitative descriptive data analysis. The results obtained are in the form of a valid and practical learning device prototype. Validity is fulfilled qualitatively. Whereas, the practicality shown by experts stated that the developed prototype could be applied to elementary students. Apart from that according to the one to one and small group stages, students can use learning tools well. From observations of student learning activities, the results of student answers, it can be seen that the prototype developed has a potential effect to improve students’ mathematical abilities.
RME Approach and Mind Map Methode to Enhance Mathematical Cognition of Elementary School Students
Authors: Ilmi Rahmatul , Bentri Alwen 
Published: December 2019

Abstract
Early mathematics achievement has been found to be important for later mathematical development. Intelligence and other cognitive factors typically explain no more than half of the variability in mathematical variation. This study aimed to investigate the effect of applying a Realistic Mathematics Education approach and mind map method to enhance mathematic cognitive at elementary school students. The participants were recruited from elementary schools in Bukittinggi, West Sumatra, Indonesia. The constant comparative and grounded theory techniques were used for data analysis. The theoretical contribution of this study is a very detailed diagnosis of increasing at mathematical cognition resulting in a profile rather than in a single score. Practically, this profile enabled efficient intervention that resulted in students’ high mathematical cognition and achievement in students’ learning achievement.
Ethnomathematics: Formal Mathematics Milestones for Primary Education
Authors: Budiarto Mega Teguh , Artiono Rudianto , Setianingsih Rini 
Published: December 2019

Abstract
Ethnomatematics is a study of the different ways in which people solve mathematical problems and practical algorithms based on their perspectives. This study refers to various forms of mathematics as consequences which are embedded in cultural activities. Meanwhile, culture-based mathematics learning is one way that is perceived to make meaningful and contextual mathematical learning highly related to the cultural community and will be applied later in harmony with that community, as well as interesting and enjoyable learning. If this is done habituation from an early age will build the character of students. The researcher proposes possibilities for ethnomatematics to enggage the curriculum and have a relatively similar role in formal mathematics, namely; (1) substitute for school mathematics; (2) supply for school mathematics; (3) milestones into school mathematics: (4) motivation for school mathematics and (5) as a local content of school mathematics and scheme to develop student’s character.
Exploring Flipped Learning in Elementary Linear Algebra Class
Authors: Dassa Awi , Khuluq Muhammad Husnul , Assagaf Said Fachry 
Published: December 2019

Abstract
This preliminary study is conducted to observe how flipped learning could be used in teaching the subject of elementary linear algebra in campus. The study is descriptive explorative using video and direct observations as the main data collection techniques. Forty students and a lecturer attending a blended-based elementary linear algebra class set in flipped learning mode were involved as the subjects. The data were analysed to gain insights on how it would be best to conduct the flipped learning, and to see how it helps the students and the lecturer during the class sessions. The results showed that the flipped learning made the class very dynamic. The online session is also helpful in students’ learning accelerations in procedural contents and on providing more opportunity for lecturer to simulate students’ higher order thinking during the offline sessions.
Modified For The Pascal Triangle Multinomial
Authors: Rosha Media , Arnellis  
Published: December 2019

Abstract
Newton’s Binomial Theorem applied at the rate of 2 with the formula:

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Problems in algebra are not limited binomial. Binomial only is not enough, so that multinomial is necessary. Multinomial Theorem has the formula:

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The use of theorem in binomial problem is less practical so that Pascal Triangle is prefered, for easier use Pascal’s Triangle. Solution of Triangle with the theorem multinomial problem more complicated. By analyzing multinomial through binomial form, can be obtained from modification that allows the Pascal triangle. The focus of the discussion is to determine Pascal Modified Triangular shape of a multinomial. This basic research using descriptive method, by analyzing the relevant theory is based on the study of literature. The results obtained are Modified Pascal’s Triangle, which facilitates the work in the multinomial.
Retraction: Experimental diagnostics of the flow downstream the gas turbine premixer using planar optical methods (J. Phys.: Conf. Ser. 1382 012005)
Authors: Chikishev L M , Dulin V M , Lobasov A S , Sharaborin D K , Savitskii A G , Tsatiashvili V V , Nazukin V A 
Published: December 2019

This paper was retracted by IOP Publishing on 03 December 2019. This paper was published due to a technical error and was not intended to be included in this journal.Retraction published: 03 December 2019.