Indonesia Conference Directory

Corresponding Author
Fajar Nugraha Asyahidda

Institutions
Universitas Pendidikan Indonesia

Abstract
The era that continues to develop brings a variety of conveniences for humans, especially in this industrial 4.0 era, humans are greatly facilitated by a variety of digital devices. However, apart from that, industry 4.0 has disrupted various aspects of human life, such as social, cultural, economic, educational, and even sports. One of the major distractions in the field of sports is that some sports applications have shifted the sporting paradigm in which digital devices have presented virtual trainers with training offered. Through sports applications that present virtual trainers on smartphones, users can exercise without real help from the trainer. But does this impact change the traditional paradigm of sports. Using the cross-sectional survey technique, this article tries to find out about the respondents choice of the virtual trainers or reality trainers. By using 30 respondents, this study revealed that in the era of industrial revolution 4.0 technological advances that present virtual trainers have changed the paradigm of society in sports, they tend to choose sports guided by virtual trainers through smartphones and other gadgets. This article can have implications for the study of the sports industry in the future because the rapid use of digital devices has changed the paradigm of sports from traditional to digital.

Keywords
Industry 4.0, Sports, Sports Industry, Virtual trainers

Topic
Sport Science and Technology

Link: https://ifory.id/abstract/KQVBCp8xyUwW

Corresponding Author
Lilik Sri Hariani

Institutions
Economic Education Study Program, Universitas Kanjuruhan Malang

Abstract
This is a research development of accounting learning modules on financial reporting material using a scientific approach through interactive videos. The purpose of this study is to produce an accounting learning module that can be used to support learning activities. The procedure of development research applied in this study uses steps: (1) potential and problems; (2) data collection; (3) product design; (4) design validation; (5) design revisions; (6) product testing; (7) product revisions; and (8) testing the use of learning modules. The subjects of this study were 35 students of Kanjuruhan University management students. Data collection techniques used in this study were observation, interviews, and questionnaires. The results of the feasibility obtained for the validation of the learning module are included in very valid criteria or can be used to support accounting learning activities. The results of the effectiveness of the learning modules obtained through competency tests are obtained from the average value of students included in the good category

Keywords
module development, scientific, interactive video

Topic
Computer Science

Link: https://ifory.id/abstract/Yx2kPb8cMJvg

Corresponding Author
TASMA SUCITA

Institutions
Departemen Pendidikan Teknik Elektro
Universitas Pendidikan Indonesia

Abstract
The purpose of this study was to determine the effect of generator installation Distribution of stability on a system of 20 kV distribution with load conditions is considered balanced. The reason for conducting this research is to find out how far DG can maintain stability on each bus. The method used in this study is to compare the results of the simulation of power flow and short circuit interference using ETAP Power System software. The results obtained from the power flow simulation before installation DG voltage drop at the end of the line. While the three phase short circuit fault current before the DG installation at the beginning of the line is x. After installation of DG with an injection of 50% and 90% power DG obtained a voltage drop at the end of the line of y and w. The results of the study show that with the injection of DG can increase the voltage profile on the line. Likewise, the interference current has increased, but it can be overcome by placing the location of the DG from the fault site.

Keywords
Distribution line, Distributed Generation, Stability of Distribution Systems, ETAP Power System

Topic
Electrical Engineering

Link: https://ifory.id/abstract/rJcLQe63WBmz

Corresponding Author
Mochammad Tanzil Multazam

Institutions
Universiti Malaysia Perlis,
Universitas Muhammadiyah Sidoarjo

Abstract
The GOST algorithm is an algorithm that has good encryption and decryption speeds because the encryption and decryption process is simple with the use of keys that are not too good. Security in cryptographic ciphertext results is one of the factors that depends on the use of a good key too, one of the techniques that can be used is the Triple Transposition Key that processes keys as much as 3 x rounds with the transposition function. The Triple Transposition Key and GOST algorithms are combined during the key formation process so that the key obtained from the process of using the Triple Transposition Key algorithm is quite strong and minimizes the brute force attack. The use of the Triple Transposition Key algorithm on GOST can be used as an alternative to increase security on the key so that it does not have to have a combination of 2 or more algorithms that will only consume process resources and also do not significantly affect the speed of encryption and decryption.

Keywords
GOST algorithms, Triple Transposition Key, cryptographic ciphertext

Topic
Computer Science

Link: https://ifory.id/abstract/d2ewDXLz6FYQ

Corresponding Author
Muktiarni Muktiarni

Institutions
Study Program of Technological and Vocational Education, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudhi No 229, Bandung, West Java, Indonesia 40154

*muktiarni[at]upi.edu

Abstract
This study synthesizes the findings of a study on the trend of digitalization of education in the face of the industrial revolution 4.0. Journal studied from 2015 to 2019. This paper focuses on the challenges and opportunities problem4.0 industry, industrial development 4.0 characterized by the development of big data and artificial intelligence (artificial intelligence). Skill is needed in this era or called big data and artificial intelligence, including advanced analytics, Internet of Things, and digital security. All areas of both education and industry in the world will be affected by the development of the industrial revolution 4.0,new patterns when disruptive technology (disruptive technology) are present so fast that all people, particularly education should be immediately adapt to industry developments 4.0.Education and industry should be able to develop the industry by considering the transformation starategi sector human resource competency in their field. It is a challenge for education in preparing human resources in order to adapt to the industry 4.0. Of the few studies that have been done Trend digitalization in education as one of the dominant solutions carried out in the face of the industrial revolution 4.0, it is in line with a new pattern that is found in industry 4.0 iedisruptive technology (disruptive technology).

Keywords
digitalisation, industry 4.0, technology, education

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/XUdbncyxjzQf

Corresponding Author
Mujiarto Mujiarto

Institutions
a) Department of Electrical Engineering, Universitas Muhammadiyah Tasikmalaya
*hani.rubiani[at]umtas.ac.id
b) Department of Information Technology Education, Universitas Muhammadiyah Tasikmalaya
c) Department of Mechanical Engineering, Universitas Muhammadiyah Tasikmalaya, Jl. Tamansari Km. 2,5, Mulyasari, Tamansari, Tasikmalaya 46196, Indonesia
*mujiarto[at]umtas.ac.id

Abstract
Estimating the location of Object in an indoor environment poses a fundamental challenge in ubiquitous computing. Indoor localization based on signal strength by utilizing devices in buildings such as WiFi signals is increasingly being done. To determine the user-s position using the algorithm of the received signal strength. This paper shows that contrary to popular belief an indoor localization system based on WiFi fingerprints using Support Vector Machine (SVM) method. The performed experiments using 14480 datasets and 302 classes, collected from real world environments in building, and the comparison with Naïve Bayes confirm the effectiveness of SVM-based localization proposal. Experimental results show that the system achieves a correct classification rate of around 88% and minimum average error distance 4.61 meters compared to Naïve Bayes for correct classification rate of around 67% and minimum average error distance 6.21 meters.

Keywords
Support vector machine; SVM; Naive bayes; Indoor localization

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/aGe6gb7THEcx

Corresponding Author
Aprinaldi Aprinaldi

Institutions
Study Program of Technological and Vocational Education, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudhi No 229, Bandung, West Java, Indonesia
40154

*aprinaldi.bkn[at]gmail.com

Abstract
Augmented reality is a technology that offers the ability to combine the virtual world with the real world. During its development, augmented reality is divided into two, which is desktop based and mobile (android) based is now being used as a media in learning in terms of science. The presence of augmented reality provides a solution for learning that is abstract and complex. We collect several journals related to augmented reality from a variety of sources, and acquired as many as 57 articles in the span of eight years between 2010 and 2018, and 28 of them in accordance with this research topic. We found a variety of research methods used to obtain the data for the implementation of augmented reality as a learning media, methods used include observation, questionnaires, surveys, pre-test and post-test, interview, video recording, and documentation. The resulting impact also varied, ranging from student motivation, student performance, student understanding, and also the effectiveness of AR in learning.

Keywords
Augmented Reality, Android, Learning

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/kmZDzYUHxyV8

Corresponding Author
Faried Wadjdi

Institutions
Universitas Negeri Jakarta

Abstract
This study aims to obtain an overview of the effect of temperature on energy transfer capacity by laser which can later be used as one of the basic considerations for transferring electrical energy through air that is converted into the form of light until it is received by the receiver (receiver) by comparing the transmitted power and power received. The research method used an experimental method with the design of a laser and a photovoltaic cell as a receiver. Schematic experiment starts with setting up equipment. Then treated with temperature changes as an effect on the laser. The results of the treatment were analyzed so that conclusions were obtained. Based on the results of the study, it was found that the significance level of the calculation of the probability price or the significance coefficient was 8.26E-30 which means smaller than the specified error rate / alpha (α) of 0.05. And if using the coefficient F, the price of the calculated coefficient F is 459.3736 which means it is greater than F table 4.001191. In accordance with the provisions that apply in testing the hypothesis, it can be concluded that the null hypothesis (H_o) which states "No effect of temperature on output power" is rejected. This means that the results of the evidence accept the alternative hypothesis (H_1) which states "There is an influence of temperature on the output power". The correlation of the effect of changes in temperature to output power gives the equation y=3E-10x^3-3E-08x^2+6E-07x+5E-05. So it can be concluded that temperature changes have an effect on output power

Keywords
Transfer Capacity, Energy, Temperature, Laser

Topic
Electrical Engineering

Link: https://ifory.id/abstract/KGXhauMHdJzY

Corresponding Author
Suyitno Muslim

Institutions
Universitas Negeri Jakarts

Abstract
Abstract. This study aims to develop digital media that are effective in improving wushu training. Digital media are tested with one to one evaluations, small group evaluations, and field trials. The results of interviews with instructors, and training participants show a positive response that in improving digital media skills are needed as a guide to the exercise e-module. In this study, at the evaluation stage 3 instruments were used to collect data. Pretests are designed to identify the trainees initial abilities, questionnaires with instructors, media experts and instructional design experts, to validate the content of digital media, and posttest to see the effectiveness of the media in improving learning. The results of the large group evaluation and field tests involving 30 training participants suggested that the media was very effective. as instructional for wushu training. The results of this study indicate that digital media is very effective and efficient as a guide for wushu training in improving skills.

Keywords
Development Instructional Media, Digital Media, e-Module, Wushu Training.

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/6avAhmCTpPx2

Corresponding Author
Rina Febriana Hendrawan

Institutions
a) Electrical Education Study Program, Universitas Negeri Jakarta
*) ivan.hanafi[at]unj.ac.id
b) Technology and Vocational Education, Faculty of Engineering, Universitas Negeri Jakarta
c) Electrical Education Study Program, Universitas Negeri Jakarta
d) Electrical Education Study Program, Universitas Negeri Jakarta
e) Electrical Education Study Program, Universitas Negeri Jakarta

Abstract
In the face of the Era of the Asean Economic Community (MEA) as a manifestation of the implementation of the agreement of the ASEAN Free Trade Area (AFTA), the Indonesian nation must have the right strategy especially in the field of basic education. Graduates of basic education must have adequate knowledge, attitudes and skills, including the ability to adapt to changes in work situations that continue to change dynamically. The study aims to develop a model of life skills education for students at the basic education level that is oriented to local wisdom. The skills implemented by the school are first mapped based on the suitability of local wisdom in a number of fields and the need for initial knowledge, attitudes and skills for students to prepare themselves to enter the workforce. The vocationalization model based on local wisdom at the basic education level is used to find solutions in an effort to complement and prepare basic education graduates who do not continue their education to become productive and competitive workforce to face global competition, especially in facing the ASEAN Economic Community. Initial research results in the form of interview instruments and guidelines reviewed by experts consist of 1) local potential, 2) selection of basic types of skills in schools, 3) availability of equipment and materials for skills practice, 4) resources in schools, 5) support the parties in the application of skills learning, and 6) the process of learning skills.

Keywords
vocationalization, local wisdom, life skills, education skills.

Topic
Industry Engineering

Link: https://ifory.id/abstract/n2BPKjQJVqct

Corresponding Author
Neneng Siti Silfi Ambarwati

Institutions
1Department of Cosmetology, Faculty of Engineering, Universitas Negeri Jakarta, Jl. Rawamangun Muka, East Jakarta, 13220, Indonesia
2Department of Phytochemistry, Faculty of Pharmacy, Universitas Indonesia, UI Depok Campus, Depok, 16424, Indonesia
3 Department of Pharmacognosy, Faculty of Pharmacy, Universitas Pancasila, Jl. Srengseng Sawah, Jagakarsa, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta, 12640, Indonesia.

Abstract
Background. Elastase is a proteinase enzyme that can reduce elastin by dividing specific peptide bonds. Therefore, the inhibition of elastase activity in the dermis layer can be used to maintain skin elasticity. Materials that can inhibit elastase activity can be a cosmetic ingredient in dealing with skin aging. Increased desire to maintain healthy skin without chemicals, encourages the use of materials from natural sources such as plants from Indonesia, a country that has a high biodiversity, including Garcinia latissima from the Clusiaceae family. Purpose. The purpose of this study is to know G. latissima has the activity as an inhibitor of elastase enzyme or not. Methods. Plant extraction was carried out using maceration successively methods. The inhibition activity of elastase enzyme was carried out by measuring the kinetic enzyme N-succ (Ala) 3-Nitroanilide conversion to p-nitroaniline (substrate) spectrophotometry at 405 nm and using porcine pancreatic elastase (PPE) as an enzyme. Results. The results showed that the G. latissima methanol and ethyl acetate extract were active as elastase enzyme inhibitors. Conslusion. G. latissima extract can maintain skin elasticity.

Keywords
Garcinia latissima Miq., elastase enzyme, maceration succesively

Topic
Chemistry

Link: https://ifory.id/abstract/EFjyC3ZWMvVx

Corresponding Author
Muhammad Ihsan

Institutions
(a) Departement of Geography Education, Universitas Pendidikan Indonesia
Jalan Setiabudhi No.229,Bandung 40154, Indonesia

Abstract
The purpose of this study is to apply a geographic information system to analyze the vulnerability of home robbery in neighborhoods. To support the research, we use the Scoring Method with a two parameter overlay using the Geographic Information System. The results showed that the Geographic Information System in the neighborhoods can visualize the neighborhood map, based on the analysis conducted, there are 10 houses that have the potential for home robbery, because based on the Vulnerability analysis, the 10 houses belong to the category of vulnerable categories (categories 4-5) . Based on these results, the information from this study can be used as a reference and study material in maintaining the security in neighborhoods.

Keywords
Geographic Information System, Neighborhoods, Home Robbery

Topic
Information Engineering

Link: https://ifory.id/abstract/7cMVCjUpbJ3y

Corresponding Author
Ibnu Mubarak

Institutions
Departemen Pendidikan Teknik Mesin
Universitas Pendidikan Indonesia

Abstract
The purpose of this study was to determine the type of chain suitable for use on karts, besides that this study aimed to determine the safety factors of chain hinges and sprocket gears used in redesigned karts. The method used in this study uses descriptive analysis method, namely by describing the data about the chain wheel on karts, after describing the data, the data are analyzed theoretically about the forces that occur in the chain wheel and the safety of the use of chain wheels used in redesigned karts. After analyzing the data, the results show that the chain wheels on the redesigned kart are safe to use. This is indicated by the acquisition of a hinge safety factor value of 4.02. The results of this study have an impact on the use of chain wheels on the redesigned karts in the safe category to be used for kart racing purposes.

Keywords
Chain-Drive,RE-DESIGN TONY KART MITOX GOKART MODEL,kart,safety factor

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/gdYHM3bFvaeD

Corresponding Author
Firman Aziz

Institutions
1)Department of Communications, Universitas Pendidikan Indonesia, Jalan Dr Setiabudi No 229 Kota Bandung, Indonesia
firman.aziz[at]upi.edu

2)Department of Indonesian Language Education, Universitas Pendidikan Indonesia, Jalan Dr Setiabudi No 229 Kota Bandung, Indonesia
dikiwahyudi[at]student.upi.edu

3)Department of Indonesian Language Education, Universitas Pendidikan Indonesia, Jalan Dr Setiabudi No 229 Kota Bandung, Indonesia
kemalmusthafa22[at]gmail.com

4)Department of Mathematics Education, Universitas Pendidikan Indonesia, Jalan Dr Setiabudi No 229 Kota Bandung, Indonesia
aghniafadila[at]upi.edu

Abstract
This study aims to determine the application of the assisted blended learning learning model of the spot.upi.edu application at UPI and to know the mastery of blended learning learning assisted by the spot.upi.edu application at UPI. The research method uses quasi experiments with quantitative approaches. The study population was all students who contracted the general course of Indonesian Language Education in odd semester 2018/2019, while the study sample was 80 students or two classes (control and experiment). The research instrument used in-depth observations and open questionnaires. The study was conducted for one month starting 1-29 December 2018. The results showed: 1) the implementation of the blended learning learning model assisted by the spot.upi.edu application proved to provide positive results as much as 91% of students liked blended learning and 2) as many as 86% of students were able master the assisted blended learning learning spot.upi.edu application at UPI. Assisted learning of blended learning in the spot.upi.edu application is proven to be able to be applied to students so that this learning is a solution in facing the era of industrial revolution 4.0.

Keywords
Learning, Model of Learning, Blended Learning, SPOT.UPI.EDU, Industrial Revolution

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/6rL3TJxQDZ2a

Corresponding Author
Aniesa Puspa Arum

Institutions
State University Of Jakarta, Jl Rawamangun Muka, East Jakarta
aniesa.puspa[at]gmail.com

Abstract
The purpose of this research is to find the effect of “contextual teaching and learning (CTL) model” and “achievement motivation” on student engagement in make-up artistry course. This research used experimental method with factorial design 2 x 2. The main variable of this design is CTL model which is differentiated between CTL-group model and CTL-individual model. The attribute variable is achievement motivation which is differentiated between high achievement motivation and low achievement motivation. The sample of this research were 32 students coming from two classes which were selected randomly. Then the sample were devided into 4 cells with 8 students of each from the questioner of achievement motivation measurement. The treatment used CTL model and the last treatment to find the result or change attitude, used student engagement questioner measurement. The result of the study was analyzed with two-way analysis of variance (ANAVA) and followed by Tukeys test.

Keywords
contextual teaching and learning (CTL) models, make-up artistry and achievement motivation

Topic
Sample Topic

Link: https://ifory.id/abstract/Uqg3u4bTRvjm

Corresponding Author
BAMBANG HERU ISWANTO

Institutions
*Department of Physics Education, Universitas Negeri Jakarta, Jakarta 13220, Indonesia
**Department of Physics, Universitas Negeri Jakarta, Jakarta 13220, Indonesia

Abstract
The purpose of this research is to develop a design for MOOCS with Virtual Microscopic Simulation (VMS) for students levels of understanding. The research method used is the Embedded Experiment Design with the research subjects as many as 45 students- in one of campus in Banten Province, Indonesia. The results showed that the Level of Comprehensive Understanding (CU) was 76.67%, Level of Understanding of Partial Understanding (PU) was 15.56%, and Level of Misunderstanding (MU) was 5.56%, Level of Not Understand (NU) of 2.22% and the lowest level of No Answered (NA) of 0%. It was concluded that the average level of understanding experienced a significant increase with learning through MOOCS with VMS on the concept of electricity.

Keywords
MOOCS; Virtual Microscopic Simulation (VMS); levels of understanding

Topic
Computer Science

Link: https://ifory.id/abstract/R2BPXdATVQUZ

Corresponding Author
Ribangun Bamban Jakaria

Institutions
Universitas Muhammadiyah Sidoarjo

Abstract
The digital era provides easy access for users of smart phones in conducting transactions, this will provide challenges for pioneering business actors in conventional ways. This study aims to study the current system that can improve the competitiveness and growth of the Indonesian Bottled Drinking Water industry in the industrial era 4.0, namely by making product design changes aimed at increasing brand value. The method used is a quantitative method by deciphering product variables, increasing brand value, and several industry criteria 4.0. The expected results are industry 4.0 criteria that are able to answer the challenges of current transactions with a significant contribution to improving design to increase sales of bottled water products

Keywords
Product description, brand value, digital

Topic
Industry Engineering

Link: https://ifory.id/abstract/Mg2PbHkdU7zB

Corresponding Author
Reni Dwi Widyastuti

Institutions
a) Economic Faculty, Universitas Panca Bhakti Pontianak, Indonesia
Jl Kom Yos Sudarso, Pontianak, Indonesia
b*) Universitas Wijaya Kusuma Surabaya, Indonesia
Jln. Dukuh Kupang XXV/54 Surabaya

Abstract
The purpose of this research analyzed companys website and Corporate Social Responsibility (CSR) on Tax Aggressiveness. The method used quantitative research, the independent variables are the companys website (X1) and Corporate Social Responsibility (X2), the dependent variable is tax aggressiveness (Y). Data analysis used multiple regression. The results of this research of the regression equation are as follows Y = 0.053 + 0.113X1 + 0.253 + e with significance X1 = 0.073, X2 = 0.005, showed companys website and Corporate Social Responsibility significant on Tax Aggressiveness. The most spacious Corporate Social Responsibility by companies, and the supervision of taxes on the companys website can be used as a benchmark in tax supervision, and supported the society in paying taxes.

Keywords
Company Website, Corporate Social Responsibility, Tax Aggressiveness, Tax Supervision

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/JcTM8rAXZqBy

Corresponding Author
Udi Syahnoedi Hamzah

Institutions
Universitas Trisakti

Abstract
The oil and gas industry is the center of the global economy and many national economies, including in developing and developing countries. This is also important for sustainable development, because oil and gas are the main pillars of the global energy system and, as such, are drivers of economic and social development. By mapping the linkages between the oil and gas industry and the Sustainable Development Goals (SDGs), the aim of this study is to encourage oil and gas companies to further incorporate relevant SDGs into their businesses and operations, validate their current efforts and trigger ideas. Oil and gas business activities that are in line with the sustainable development agenda can lead to greater efficiency, cost savings and competitiveness, and increase social permits to operate. The methodology carried out is the study of literature and practical experience in managing health, safety and environmental aspects in oil and gas business activities. Results of this study is to increase understanding of the relationship between SDGs and oil and gas business activities. Conclusion of this study is to emphasize that the oil and gas industry has the potential to contribute to the 17 SDGs.

Keywords
sustainable development goal; oil and gas; economic and social development.

Topic
Environmental Engineering

Link: https://ifory.id/abstract/xLdw6MntkTpe

Corresponding Author
Adiyath Randy Yudi Mamase

Institutions
a) Department Management at Universitas Panca Bhakti, Pontianak, Indonesia
Jl Kom Yos Sudarso, Pontianak, Indonesia
b) Department English Education at Universitas Wijaya Kusuma Surabaya, Indonesia
Jl. Dukuh Kupang XXV/54 Surabaya, Indonesia

Abstract
The purpose of this research is to analyze correlation of underwriter, auditor, profitability and company size on stock underpricing by ICT based learning. The method used is quantitative research, the independent variables consisting of underwriter reputation (X1), auditor reputation (X2), profitability (X3) and company size (X4), and the dependent variable was underpricing (Y). Data analysis used multiple regression which begins with testing validity and reliability and performs tests of normality, multicollinearity, autocorrelation, and ICT based learning used Action Research (AR). The results showed that the three independent variables X1, X2, X3 had a negative, and X4 had a positive towards the dependent variable Y with the regression equation Y = 29.760 – 10.011X1 – 11.812X2 – 0.512X3 + 0.366X4 + e and sig value X1= 0.040, X2= 0.103, X3= 0.079 and X4= 0.750. Underwriter has influence toward stock underpricing and a good performance, implementation of ICT based learning in the subjects of stock underpricing, showed an increase in average student learning outcomes in each cycle, average student learning outcomes before the action amounted to 68.81, the first cycle 79.70 and second cycle 88.00.

Keywords
Underpricing, Underwriter, Auditor, Company Size, Internet Communications Technology

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/jVQHgFe2nXtG

Corresponding Author
Rooselyna Ekawati

Institutions
Universitas Negeri Surabaya

Abstract
Covariational reasoning plays significant role for solving problems. This study examines the covariational reasoning of postgraduate students when solving mathematics problems such as fraction, velocity and acceleration, proportion, and integral. 26 postgraduate students of mathematics education are involved in this study. Generally, mental action of students more prominent on fraction and proportion than on the other issues. On fraction and proportion problems, all students are able to fulfill all mental actions such as coordinating the value, the direction, and the amount of change of one variable, and also coordinating the average and the instantaneous rate of change of the function. However, on velocity, acceleration, and integral problems students can not show their mental actions well. The shape of their graph are irrespective with initial point, so that they only fulfill 3 of 5 mental actions in covariational reasoning. These findings suggest that learning in mathematics should place increased emphasis on problem involving graph to promote covariational reasoning of the students.

Keywords
Covariational reasoning, postgraduate students, fraction, velocity, acceleration, proportion, integral

Topic
Mathematics

Link: https://ifory.id/abstract/BWMrRwF6ygma

Corresponding Author
Purwanto Purwanto

Institutions
a) Departement Law Faculty of Law at Universitas Panca Bhakti Pontianak, Indonesia
b) Department Management at Universitas Panca Bhakti, Pontianak, Indonesia
Jl Kom Yos Sudarso, Pontianak, Indonesia
cUniversitas Wijaya Kusuma Surabaya
Jln. Dukuh Kupang XXV/54 Surabaya

Abstract
The purpose of this research analyzed free investment ideology characteristic from democracy economy context, and increasingly neo-liberal economy mainstream, was made legal instrument that regulate in management investment of palm oil plantation by Internet Communications Technology (ICT) based learning. The method used quantitative research, the independent variables consisting of regulation comply (X1), accountability (X2), and CSR (X3), and the dependent variable is profitability (Y), data analysis used multiple regression with testing validity, reliability, performs tests of normality, multicollinearity, autocorrelation, heterokedacity, and ICT based learning used Action Research (AR). The results showed three independent variables are significant with the regression equation Y = 2,012 + 0,326X1 + 0,311X2 + 0,375X3 + e, and sig value X1= 0,043 , X2= 0,023 , and X3= 0,038. Palm oil plantation management with community through regulation comply, accountability and support through CSR increase profitability, and the implementation of ICT based learning showed that the achievement on stock underpricing subjects. Average student learning outcomes before the action amounted to 65.21, after the first cycle the action applied to increased 80.12. In the second cycle increased to 86.89, finding this research is the application of ICT based learning can improve learning achievement stock underpricing subjects.

Keywords
Underpricing; Underwriter, Auditor, Profitability, Company Size

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/NVzWJBFLfhr3

Corresponding Author
Puji Astuti

Institutions
Universitas Pendiidkan Indonesia

Abstract
One step lunge is technique that involve both speed and accuracy of an attack to score points in a fencing competition. An effective and efficient technique in order to achieve points and victory is slightly important to be examined. The methodology used in this present study was experimental method. Fencers from Purwakarta consisting 22 people were used as the population and 4 athletes as samples. The instrument used for the study was Kuhadja Fencing Test in order to measure the attack results. Based on the result, it is found that there is no significant influence. The minimum sample is likely to be the reason of the insignificant result. However, by looking at the training process and graphical data of the average scores of the two groups, found that the influence of one step lunge technique is significant enough. Based on the analysis of statistical data, there are an average pre test 43,7 and an average post test 74,5 then the data is normal with an increase of 30,8 Based on t test analysis produces t count= 3,1 > t table= 2,353. research proves that a one-step technique is effective and efficient at attack, and increases motor coordination in attacks.

Keywords
Attack Result, Experiment, Fencing, One Step Lunge, Sport Coaching Education

Topic
Sport Science and Technology

Link: https://ifory.id/abstract/Pm9jx8uqnpeA

Corresponding Author
Dadang Iskandar

Institutions
Universitas Indonesia

Abstract
One of the things that cause rapid destruction the pavement that is due to lack of maintenance of the road drainage system. Road drainage system serves to dry the pavement or water flow in order as quickly as possible out of the road surface and then flowed through the channel next to the final disposal. Road deterioration will interfere with the comfort and safety of the vehicle and affects the performance and quality of the pavement structure. Pavement condition index (PCI) is one of the pavement performance assessment methods used to evaluate the condition of the pavement. This research is aimed to identify and analyze the shape of influence of drainage conditions to damage the road surface pavement structures PCI method with the territory of reviews Jakarta Province. The method used is a field research with primary data in the form of survey of road damage that will be evaluated by the method of PCI and carried out analysis of the effect of drainage analysis method experimental design factorial of the components of the condition of drainage channels, the existence of the water surface pavement, and the value of PCI as the value of damage pavement. Based on the research results obtained using Design of Experiments main factors that greatly influence the surface damage is a factor pavement drainage channel conditions and then factor the value of PCI and the last is a factor of the condition of the surface water. The entire region of reviews is dominated by the value of PCI "good" and the type of maintenance that dominates is "routine maintenance".

Keywords
Road deterioration, drainage, surface water, PCI, factorial analysis

Topic
Civil Engineering

Link: https://ifory.id/abstract/6E2t4vkeHydP

Corresponding Author
Yuliatri Sastrawijaya

Institutions
Universitas Negeri Jakarta

Abstract
Evaluation of learning outcames is an evaluation conducte to see how well an assessment can measure the succes of the learning process. SIP-Eval is a system development to help teachers in evaluating learning outcomes at school.SIP-Eval uses the concept of a decision support system and is developed with a SDLC model by designing using UML. SIP-Eval uses three tests that is assessment testing, usabillity testing and user accepted testing. Testing do to determine the quality of the items product by SIP-Eval and to know the usefulness of the SIPEval and to know SIP-Eval can function property. SIP-Eval involves server administration subject teachers and students as respondents testing from Vocational High School 7 Jakarta and Vocational High School 26 Jakarta. The test results conducted at Vocational High School 7 Jakarta and Vocational High School 26 Jakarta involving 3 Server Administration subject teachers and 27 class XI students of the Computer Network Engineering expertise program show that SIP-Eval has a good ability in assisting users in completing the evaluation of learning outcames process and can function very well for educators and students in the implementation evaluation of learning outcames in schools with 73.75% obtained in usability testing and 94.70% in UAT testing. So that SIPEval greatly facilitates teachers in the implementation evaluation of learning outcames process and is very efficient. SIP-Eval produces 40 items that are declared valid with the highest validity value of 0.91 and the lowest validity value of 0.86. Difficulty analysis states that 5 items are too difficult, 34 items are moderate and 1 item is too easy. Differentiating power analysis states that 2 items have a very good discriminating power, 19 items have good dissemination power, 7 items are good enough for their power, 3 items are not good for their power and 9 items are not very good at their power. Test equipment (assessment) used in the test subjects of server administration class XI even semester has a very high reliability scale with reliability test results obtained at 0.896.

Keywords
sipeval, evaluation, education, learning outcomes

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/PvDfgNZC9tz8

Corresponding Author
AJENG LOLA PRIANTI

Institutions
1)Postgraduate Biology Education, Universitas Negeri Medan (UNIMED),
2)Departement of Biology Education, Postgraduate Program,Universitas Negeri Medan
Jl. Willem Iskandar Psr. V Medan Estate-Indonesia (20221)

Abstract
The objectives of this research are : Knowing how the science process skills of students based on gender, based on schools location the human respiration system topic on grade XII Science SMA Negeri in Langsa city. The type of this research is descriptive quantitative, research observed 150 respondents of class five grade student from Senior high schools in Langsa city-aceh. The data collecting was done by using essay test of science process skill of student.The result : The science process skills with score 75,41%, based on gender, at the female students is 74,55% and male students is 71,59%, based on schools location which in town area is 75,16% and in village area is 72,32% (good cattegory) of students at the human respiration system topic on grade XII science SMA Negeri in Langsa City-aceh.

Keywords
Keywords: Analysis, Science Process Skills, Human Respiration System

Topic
Education and Research Global Issue

Link: https://ifory.id/abstract/VdALBYbgE23j

Corresponding Author
Alimin Hamzah

Institutions
Universitas Pendidikan Indonesia

Abstract
The purpose of this study was to determine the differences in anxiety levels of soccer athletes at 3 soccer schools (SSB) in Makassar. This study is quantitative research, using a descriptive approach. This study tries to describe the comparison of anxiety levels in three SSBs. The instruments of data collection used in this study were observation, interviews, questionnaires and documentation. The data analysis technique used is the percentage technique using categorization of athletes anxiety level. The results of the study showed that there were differences in anxiety levels of athletes in three schools. SSB PERSIS athletes experience higher levels of anxiety compared to SSB Hasanuddin athletes. There were no significant differences in anxiety levels between athletes at the SSB PERSIS and SSB Ubhor. There is a difference in the level of anxiety between athletes at SSB Ubhor and SSB Hasanuddin. Athletes at the SSB Ubhor experience higher levels of anxiety compared to SSB Hasanuddin athletes. The findings of this study indicate that there are differences in athletes anxiety levels in the 3 SSBs, which indicate that there are differences in the performance of athletes from 3 SSBs. The athletes anxiety level can affect the athletes performance during the match.

Keywords
Athletes performance, Athletes Level of Anxiety, Quantitative Research, Soccer School

Topic
Sport Science and Technology

Link: https://ifory.id/abstract/eFukBR7CJGYa

Corresponding Author
Eddy Soeryanto Soegoto

Institutions
UNIVERSITAS KOMPUTER INDONESIA

Abstract
The purpose of this study is to identify the influence of information technology on small and medium business groups, and the benefits derived from the application of information technology. The method used in this research is descriptive method, to present how the picture of the influence of information technology in business processes. The results of this study are to identify the extent to which the impact generated by the application of information technology in small and medium business businesses is real. This research was conducted by discussing some examples of the application of information technology in small and medium enterprises.

Keywords
Business, information technology, small and medium enterprises

Topic
Computer Science

Link: https://ifory.id/abstract/tfpTWXvhkBNn

Corresponding Author
Risal Jaurino

Institutions
a)Departement Accounting Faculty of Economic at Universitas Panca Bhakti Pontianak, Indonesia
Jl Kom Yos Sudarso, Pontianak, Indonesia
jaurino+endangkristiawati+risal+sartono+wildasari[at]upb.ac.id

b*)Department of English Education at Universitas Wijaya Kusuma Surabaya Indonesia
Jl. Dukuh Kupang XXV/54 Surabaya, Indonesia
lusytm_fbs[at]uwks.ac.id

Abstract
The purpose of this research was to analyze of financial management on transparency, accountability and community participation in development. The method used quantitative research, the independent variables consisting of transparency (X1), accountability (X2) and community participation (X3), and the dependent variable is development (Y), the follow up data analysis used is multiple regression which begins with testing validity and reliability and performs tests of normality, multicollinearity, autocorrelation and heterokedacity. The results showed that the three independent variables consisting of Transparency (X1), Accountability (X2) and Community Participation (X3) towards the dependent variable namely Development (Y) had a positive effect with the regression equation Y = 2,087 + 0,283X1 + 0,441X2 + 0,311X3 + e, and sig value X1= 0,044 , X2= 0,000 , and X3= 0,034. Thus, financial management carried out through transparency, accountability and support through community participation can influence development and make an area develop more independently

Keywords
Transparency; Accountability; Community Participation; Development

Topic
Management Science

Link: https://ifory.id/abstract/dBMLFUq9C4ZR

Corresponding Author
Mesianna Simbolon

Institutions
Universitas Pendidikan Indonesia

Abstract
The purpose of this research is to know the the influence of variation exercise to the shooting ability of basketball on Junior High School Dharma Loka Pekanbaru. The research method used pre-experimental with one group pretest posttest design. The research variables that are variation exercise (X) to the shooting ability of basketball on Junior High School Dharma Loka Pekanbaru. Population amounted to 30 people by using purposive sampling technique so that obtained 12 samples. Research Instruments using repeated tests shooting during 30 seconds.Data analysis techniques obtained with program SPSS version 17. To answer normality by testing reliability at a significant level of α (0.05). The hypothesis proposed is the influence of variation exercise to the shooting ability of basketball. Based on the analysis of statistical data, there are an average pre test 7,50 and an average post test 12,80, then the data is normal with an increase of 5.30 . Based on t test analysis produces t count = 6.184 > t table= 1.833.It means that t count> t table. Can be concluded that variation exercise on the male team of the Junior High School Dharma Loka Pekanbaru in influences to the shooting ability.

Keywords
Basketball, Experimental Research, Shooting Ability, Sport Coaching Education, Variation Exercise, ,

Topic
Sport Science and Technology

Link: https://ifory.id/abstract/bWqYKZ2VzCEp