bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Design Of Visual Media Based On Ict To Improve The Beginning Writing Of Autistic Spectrum Disorder Students In Elementary School
Authors: Wachidah Kemil , Syaefudin Udin , Wati Tri Linggo , Taufik Wahyu , Purwati Indriana Dwi 
Published: August 2020

Abstract
The purpose of this research is to produce the design of visual media development based on ICT (Information Communication and Technology) to improve the students’ initial writing of Autistic Spectrum Disorder (ASD) which is suitable to be used to support the learning process of writing Autistic Spectrum Disorder (ASD) students. This research uses research and development (R&D) model from Borg & Gall which is simplified into 3 stages, namely, (1) potential and problems, (2) data collection, and (3) product design. Data collection techniques in this study are observation, interviews and documentation. The results of this study is the design of the development of visual media based on ICT (Information Communication and Technology) to improve the beginning writing skills of Autistic Spectrum Disorder (ASD) students in elementary School.
Utilization of Data Mining Techniques in National Food Security during the Covid-19 Pandemic in Indonesia
Authors: Elsi Zulhipni Reno Saputra , Pratiwi Heny , Efendi Yoyon , Rusdina R , Alfah Rina , Windarto Agus Perdana , Wiza Fana 
Published: August 2020

Abstract
The aim of the research is to map clusters on Indonesia’s national food security during the Covid-19 Pandemic. Where food security is a condition for the fulfillment of food for the state up to individuals, which is reflected in the availability of sufficient food, both in quantity and quality, safe, diverse, nutritious, equitable, and affordable and does not conflict with the religion, beliefs and culture of the community, to be able to live a healthy, active, and productive life in a sustainable manner. The data source used is secondary data from the Central Statistics Agency (abbreviated BPS). The data consists of monthly per capita expenditure in urban and rural areas by province and group of goods (rupiah) consisting of 33 data records (2011-2018). The group of goods used is expenditures used for food costs. The data mining method used is k-medoids which are part of the clustering. Cluster mapping uses 2 labels namely C1: labels with high food security and C2: labels with low food security. The results of the k-medoids method calculation concluded that 19 provinces were in C1 cluster and 14 provinces were in C2 cluster. From these results it is stated that 42% of Indonesia still has low food security as evidenced by the fulfillment of higher food needs than non-food. These regions are West Sumatra, Riau, Bangka Belitung Islands, Riau islands, DKI Jakarta, West Java, Banten, Bali, Central Kalimantan, South Borneo, East Kalimantan, North Sulawesi, West Papua and Papua.
Effectiveness of Mobile Learning Media on Computer Assembly at Vocational High School
Authors: Sukardi  , Mayefis Reska , Usmeldi  
Published: August 2020

Abstract
The purpose of this study was to determine the effectiveness of mobile learning media in computer assembly subjects in vocational high schools. Previously this media had been declared valid by media experts and material experts, which was then used by students. The research method used in this study is quasi-experimental, with time-series research design. Data collection techniques with pretest and posttest. The effectiveness obtained from the results of the post-test seen from classical completeness, all students declared complete and through the gain score in the medium category. Based on the findings of this study it was concluded that the mobile learning media is effective to be used as a learning media and increase the learning outcomes. This research recommends to be tested more broadly and to provide more complete content for the sake of improvement in the development of this mobile learning media.
Developing Mathematics Module Based on Literacy and Higher Order Thinking Skills (HOTS) Questions to Train Critical Thinking Ability of High School Students in Mojokerto
Authors: Feriyanto F , Putri R O E 
Published: August 2020

AbstractThis research aims to describe the process and results of the developing mathematical module based on literacy and higher order thinking skills (HOTS) to train the critical thinking ability of high school students in Mojokerto that are valid, practical and effective. This research is a development research that uses an adopted Tessmer development model. The subjects of this research were 11thgrade students at SMAN 1 Puri Mojokerto. Three students with high, medium and low mathematical ability for the One to One stage. In the Small Group stage, nine students, with the provisions of three students with high mathematical ability, three students with middle mathematical ability, and three students with low mathematical ability. While the field test stage, the research subjects were 30 students with heterogeneous mathematical ability. The students’ mathematical abilities were seen from the first semester of academic year report scores and in each stage. The development process starts from the preliminary stage, which is conducting literature studies about mathematics module based on literacy and HOTS questions, this process then followed by contacting the headmaster and teachers regarding the research schedule. The next stage is the self-evaluation, this stage consists of the analysis and design stages that analyze the students as the subject of this research and material used in the research. The materials used are Mathematical Induction, Linear Program, Matrix and Geometry Transformation, and designing a prototype. The third stage is prototyping, this stage consists of experts review, one to one, small group and field test. In the expert review, a prototype II was produced which were said to be valid. Whereas in the one to one, three students were tested and III prototypes were produced. The small group, a trial was conducted and a prototype IV was produced. Then the field test, testing and produced mathematical modules that met the valid, practical and effective. The results of this study are mathematics module based literacy and HOTS questions to train critical thinking ability that meet the validity criteria with valid categories, fulfill practical criteria with a very practical level. As well as meeting the module’s effectiveness criteria by having students’ critical thinking ability either high or high.
The Development of Instructional Multimedia based on Science, Environment, Technology, and Society (SETS)
Authors: Hidayati Abna , Bentri Alwen , Yeni Fetri , Zuwirna  , Eldarni  
Published: August 2020

Abstract
This research aims to produce a valid and practical SETS-based instructional multimedia for natural science course to seventh-grade students associated with media worthiness criteria. This study applied research and development methodology with 4-D Model which comprises of four-stage procedure accordingly, such as: define, design, develop, and disseminate. Three experts engaged with the product validation process with two media experts and one material expert. Meanwhile, 22 students of MTs PP Muallimin Muhammadiyah Sawah Dangka, Regency of Agam involved in the product trial examination. To collect the data, the researchers used interview, questionnaire and documentation archives which were analyzed with a descriptive qualitative method. The result found that in the initial step, the researchers defined the instructional media integrated with science, environment, technology in the learning. In the development stage, it was conducted the incorporation of various instructional tools, such as learning video and animation. Meanwhile, in the phase of worthiness assessment from material and media experts, it was obtained the material validity around 85,67 % with ‘Very Good’ category so that the material was declared valid for use. Furthermore, through two steps of media validation, it was found that the final value of validator 1 nad 2 were 92.93% and 81.09% consecutively with the category “Very Good” so that the media was valid to be tested. It can be concluded that SETS-based learning multimedia is worth testing. Furthermore, the results of the analysis based on the testing of SETS-based multimedia product learning in students received an average score of 93% in the “Very Practical” category. These results indicate that SETS-based learning multimedia products (Science, Environment, Technology, and society) are worthy of being used as an alternative learning media in class VII SMP / MTs (junior high schools) for natural sciences subject.
Improving chemistry teacher candidates’ mental models in the kinetics course using SiMaYang type II learning
Authors: Lathifa U 
Published: August 2020

Abstract
This study aims to investigate the profile of chemistry teacher candidates’ mental models in the kinetics course and improve it using SiMayang Type II learning. The subject of this study was a class of chemistry education students at UIN Walisongo Semarang who had taken kinetics course. Sample was carried out using convenience sampling technique. This study used a descriptive design and pre-experimental one group pretest-posttest design. The results of investigation showed that before being given treatment using SiMayang Type II learning, mental models of students were dominated by initial mental models with a percentage of 55.53% while the rest were synthetic one. After being treated, it was found that there were reduction in the number of initial mental models by 18.03% and synthetic mental model by 4.47%. Meanwhile the scientific mental model increased by 22.50%. The results of statistical tests showed that the learning of SiMayang Type II is effective in improving students’ mental models of chemistry teacher candidates. Learning outcomes have increased with the moderate category based on the N-gain test.
The Android-Based Learning Media Using The Trait Treatment Interaction Model as Implementation of Industrial Era 4.0
Authors: Aswirna Prima , Harahap Kamela 
Published: August 2020

Abstract
A research has been carried out on the effect of android based construct 2 learning media using the trait treatment interaction model on the physics learning outcomes of students in class XII MAN 2 Padang Pariaman. The population in this study all classes XII MAN 2 Padang Pariaman with a sample of 36 students taken using cluster random sampling techniques. The research instrument was validated by 3 validator reprehension. The hypothesis in this study was tested using the ANACOVA test which had passed the normality test, homogeneity test and average similarity test. The results of this study indicate that the physics learning outcomes of students increased from an average of 79.8 to 87.4 in class XII Science 1 and from an average of 76 to 85 in class XII Science 2.
“GOLDARHES” As a Digitalization Blood Type Test Device Based on Light Sensors
Authors: Liastra S. M. , Faadhillah A. , Dinata M. T. S. , Mahendra A. D. , Rohmah L. N. H. , Yuliyanasari N. 
Published: August 2020

Abstract
According to the data, high death rate among surgery patients was caused by faulty blood typing which were still manually done and high risk in human error. GOLDARHES is a device to determine blood type uses a light sensor with LDR and LED components and an Arduino microcontroller, then it showed the results on LCD. This device has never been used in Indonesian healthcare facilities. The Casing which is environmental friendly material is made of corn husk waste containing cellulose, lignin, and hemicellulose. In addition, the energy power of the device itself uses a charging system so that it can reduce the amount of chemical waste that is difficult to decompose. The Methods of this research is True Experimental using 100 samples of participants. The results obtained will be displayed on the LCD which is processed in less than 10 seconds. The results of this research was faster than manually test, the mean of test period was take 5 seconds and the sensitivity of the tool is 95%. Thus “GOLDARHES” can be used as an effective, accurate, and fast medical device in determining blood type.
Effect of the cutting angle and the depth of cut toward wear of carbide tool on the lathe
Authors: Iswanto  , Firmansyah M. Fachrur , Mulyadi  
Published: August 2020

Abstract
The following paper discusses how the effect of the angle and the depth of cut toward wear and tear of chisel on the lathe, then sought relationship influence of both. In this study, the wear and tear of the chisel to be studied is the edge wear (VB). The varied machining parameters are cutting angle and depth of cut. Variation of cutting angle is equal to 60°, 75° and 90°. While the depth of cut is varied by 0,5 mm, 1,0 mm and 1,5 mm. The lathe used is a conventional lathe with 400 rpm spindle spin. After testing the wear of chisel, it can be concluded that the greater the angle of cutting the higher the level of wear chisel. So also on the variation of cut depth, the greater the depth of cut then the higher the wear rate of the chisel also. From the factorial test also shows that the cutting angle and depth of cut have a close relationship in the process of forming the tool wear.
Comparison of Effectiveness in Straight-Fin Radiator Types with variations in Time and cooling air velocity
Authors: Hidayat N , Setiawan M Y , Arif A , Afnison W 
Published: August 2020

Abstract
The heat is the result of combustion that occurs in the combustion chamber with very high temperatures above 800 °C. If this temperature is left, it will cause the engine to overheat so that it can cause damage to engine components. Current cooling liquid is also developed with advantages compared to normal water which is actually equipped with anti-freeze so that the liquid does not freeze during winter, it is also equipped with anti-rust content so that the radiator has a longer service life. This research was conducted experimentally on a 5K series Toyota Kijang car engine. The effectiveness of the radiator is known by measuring the temperature of the coolant entering the radiator, the temperature of the liquid coming out of the radiator, then measuring the temperature of the coolant inlet air, measuring the temperature of the coolant air after passing through the radiator. The results obtained that the Prestone brand coolant at 60 seconds with a cooling air velocity of 2.4 m / s is better in reducing the heat generated by this machine is proven by the effectiveness value of 0.494.
Development of automatic solar egg incubator to increase the productivity of super native chicken breeds
Authors: Yuhendri Muldi , Risfendra  , Muskhir Mukhlidi , Hambali  
Published: August 2020

Abstract
Super chicken is one type of chicken that began to be developed to get better meat with a faster harvest. Super native chicken seedlings can be obtained from broiler broodstocks with males from native chickens. In this paper, an automatic egg incubator is proposed to increase the productivity of super native chicken seedlings developed in Nagari Salareh Aia. This egg incubator can hold 200 chicken eggs with a heater using 8 pieces of 5 watt incandescent lamps. This tool is also equipped with a thermostat for automatic temperature regulation and a motor for moving the egg rack. Due to the low reliability of the electricity network in this area, the egg incubator is supplied with a 300 wp solar panel equipped with a 200 Ah battery to maintain electrical power continuity. The experimental results show that this egg incubator has worked well as expected.
The Effect of Vibration Energy Harvester Mechanism Toward the Shock Absorber Efficiency
Authors: Afnison W , Maksum H , Hidayat N 
Published: August 2020

Abstract
The installation of vibration energy harvester[1], [2] mechanism type Electromagnetic Regenerative Shock Absorber (ERSA)[3][4] on vehicles can increase their energy efficiency. They will produce a new energy sources which can be used to fulfil their energy needed. However, this mechanism installation can change the shock absorber efficiency value which affect the convenience of driving itself. This research used experimental method which the ERSA mechanism installed on the usual shock absorber. ERSA is designed to be able to capture translation movement from the shock absorber and change it to electrical energy like of linear generator mechanism. From the test, the efficiency increased 0.8-1.2% on each wheel. The increase of efficiency value thought is electromagnetic damping force which was produced by ERSA mechanism. From the result of the test, it can be concluded that ERSA installation is not very impactful towards efficiency value of shock absorber because the value is still below 10%.
Appropriate Technology Applications Rice Weed Wover Tool in Kenagarian Sungai Duo
Authors: Refdina  , Ardi Junil , Syahri Budi 
Published: August 2020

Abstract
This community service activity aims to overcome problems and assist farmers in the process of handling rice. From the results of the initial review of the service team in the Sungai Duo area, there are several problems or problems faced by rice farmers. Problems faced by farmers in weeding activities. Weeds, which are pests in the form of wild plants among rice plants, are a threat to the growth and development of rice. Usually farmers overcome this problem by pulling out weeds manually, no machine has ever been known to farmers to overcome the weed problem. This activity requires a lot of energy and a long time. This complaint is a problem that will be given a solution. Through this dedication activity, the dedication team offers innovations in making weed removal equipment using machines. The science and technology offered in this activity is the use of a 55 cc engine as a wheel barrow and will be transmitted on a blade designed to eradicate rice weeds. Weed weeding machine innovations were made in a fabrication workshop majoring in Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang. Making machines involves students to help the service team in carrying out this activity. From the results of the analysis of innovation weed weeding machines are able to do weeding sugar quickly which is 1 Ha within 2 hours. The results of this innovation were handed over to the target audience, namely farmer groups in the Sungai Duo area of Sitiung District, Dharmasraya Regency. In the handover activity of the religion and farmer groups, they were very happy to welcome this tool. Farmers say thank you for the innovation and attention of universities to the people who are far from the center of the provincial capital.
The Feasibility Test of Physical and Chemical Peoperties Of Muaro Binguang Pasaman Barat Iron Sand For Semen Padang
Authors: Fadhilah  , Prabowo Heri , Saldi Trigamela 
Published: August 2020

Abstract
The purpose of this study was to examine the physical and chemical feasibility of iron sand on the west coast of Muaro Bingguang west Pasaman. This research needs to be done because the west coast of the island of Sumatra is known to be rich in iron sand and Semen Padang as a large company in West Sumatra needs iron sand to mix its cement. Test physical properties by calculating specific gravity, determine the characteristics of iron sand, and susceptibility of iron sand magnets. 5 sample bags were taken at coordinates S004′46.49 ″E99046′6.33″, S005′8.93 ″E99046′2.34″, S007′39.40 ″E99045′25.60″, S008′20.60 ″E99044′55,5″, and S008′39.00 ″E99044′55.4″. While the chemical feasibility test is done by testing the sample using XRF. The results of this study obtained, the average iron sand density of 2.99-4.23, iron sand including superparamagnetic with magnetic susceptibility 4,947 ×10-6m3kg-1– 14,946 ×10-6m3kg-1. Based on XRF analysis, iron sand is in accordance with Padang’s cement needs in making portlant cement Fe2O3 = 10% - 35% and TiO2 = 1% - 3%.
Design Of Instrument Explosive Power Leg Muscles Sensor Based
Authors: Ihsan Nurul , Bafirman  , Sujana Asep , Permana Anton Yus 
Published: August 2020

Abstract
Explosive power is an important factor in sports. The aim of this research is to design a sensor-based leg muscle explosive power instrument that is suitable with the characteristics of the explosive power, which has a working unit kg.m / s. and instruments that are effective, efficient and economical. development research was carried out by adapting the Borg & Gall model. This study involved 4 experts as validator tools for validation tests namely tests and measurements, exercise physiology, training science and IT. Data collected using a questionnaire. the results obtained from expert validation are an average percentage of 91%. The conclusion of this study is that the design and work of the developed instrument is acceptable or feasible to be developed.
Weights optimization using Firefly Algorithm on optimal control of zika disease from dengue symptoms by vaccination
Authors: Rahmalia Dinita , Herlambang Teguh , Rohmah Awawin Mustana , Muhith Abdul 
Published: August 2020

Abstract
Zika disease is caused by zika virus. Zika virus can be contagious through the Aedes biting, such as Aedes aegypti. The mosquitoes can also transmit dengue fever. From the problem of zika spread, then in this research can be constructed mathematical model of zika spread from dengue symptoms. In zika spread from dengue symptoms, there are two populations included i.e. human population as host and mosquito population as vector. Because the treatments for zika disease are unavailable, then vaccination is given to susceptible human. Optimal control is used for minimizing the number of infected human and the cost of vaccination. Due to the cost of objective function depends on weights, in this research we will apply Firefly Algorithm (FA) to optimize weights minimizing cost of objective function. FA is based on behavior of flashing characteristics of fireflies. Simulations have been applied and we can obtain comparison the number of human and mosquito with and without control. In addition, we also obtain optimal weight related to the number of infected human and the cost of vaccination.
Improving the Numeracy Mathematics Ability: The Role of Abacus Learning Model
Authors: Anam Fatkul , Suteja Jefry Ravanely , Septianto Andre , Purnomo Agung , Utami Yuni Putri 
Published: August 2020

Abstract
The addition and subtraction materials in mathematics were considered to be difficult to understand by most elementary school students. The aimed of this study was to improve the ability to calculate the addition and subtraction of numbers in mixed count material in mathematics using the Abacus learning model in second grade students of Elementary School Kebraon II Surabaya, Indonesia. This study was an action research employing the Abacus learning model with the Kurt Lewin model approach with two cycles and consists of four main steps for each cycle: planning, action, observation, and reflection. The data were gathered through documentation, interview, observation, and tests. The data analysis was done by using the individual and classical learning mastery. The results of this research indicated that the implementation of the Abacus learning model can improve the second grade students score of Elementary School Kebraon II Surabaya, Indonesia up to 86.66% and can raise the learning achievement process as “Good” criteria between teachers and students.