bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimation of Beta-Adjusted Parameters in Capital Asset Pricing Model under Non-Constant Volatility
Authors: Sukono  , Hasbullah Endang Soeryana , Hidayat Yuyun , Subiyanto  
Published: August 2019

Abstract
The Capital Asset Pricing Model (CAPM) standard equation states that the equilibrium of the capital market will be indicated by the stock market (asset) line, where the line connects risk-free investment opportunities and risky investments. The beta parameter coefficient in the CAPM is a measure of systematic risk in the capital market, whose value must be estimated accurately.In this paper, we will examine the beta-adjusted parameter estimation when the market index return has a constant volatility. Non-constant volatility in the return of the market index was analyzed using generalized autoregressive conditional heteroscedastic (GARCH) models. Furthermore, using beta estimators, average beta estimator values, and beta estimator volatility, are used to predict the future beta-adjusted coefficient.Such an assessment method is used to analyze several stocks traded on the Indonesia Stock Exchange (IDX). The results show that the beta-adjusted estimator under volatility is not constant in accordance with actual market conditions. So that it can be considered in estimating beta-adjusted in the capital market.
Improving Mathematical Beliefs of Pre-service Teacher Trough Valsiner Zone Learning
Authors: Tirto S , Herman T , Turmudi  
Published: August 2019

Abstract
This study aims to comprehensively analyze the increase in mathematical beliefs of pre-service teacher of mathematics education at Siliwangi Tasikmalaya University through learning based on the Valsiner Zone in total and based on Mathematical Preliminary Ability (MPA). The method used in this research is quasi experiment, with research population that is pre-service teacher of mathematics education at Siliwangi University of Tasikmalaya and the sample is student who follow course of probability theory in semester V consisting of one experiment class with amount of 42 people and one control class which amounted to 40 people in the Mathematics Education Study Program. Random sampling by class. Data collection techniques are questionnaires of mathematical belief scale. Descriptive analysis there is an improvement of mathematical belief of student in probability theory course, both at theory valsiner class and control class. Further improvement in student mathematical belief with theory valsiner class modeling was higher than that of control class, from the average gain of normalized students in upper, middle and lower MPA categories in the experimental group compared with the mean of normalized student gain in upper, middle and lower MPA categories with the control group although both groups were in the moderate category.
Warning Button Crime System in Supporting the Management of Public Services in the Legal Area of Polres Kota Tangerang
Authors: Sunarya Po Abas , Roihan Ahmad , Aryani Diah , Rifa’i Annas 
Published: August 2019

Abstract
The integrated police service center (SPKT) is the place for managing public services in the form of receiving reports and handling the first reports and complaints from the public. The issue of technological development is also included in the criteria of police services in supporting the management of public services in order to obtain information and solve problems quickly and accurately. Therefore, there needs to be innovation in the public reporting service system in the area of Polres Kota Tangerang. The Warning Button Crime System is a tool that can make it easy for people to contact the police when a crime occurs. This tool consists of two parts, namely the transmitter side which is stored in the strategic area and the other side is the receiver stored in the police station. By utilizing the Arduino nano and uno microcontroller which is connected to the SIM 800L Module, it can function to send a message to the Polres Kota Tangerang, with the aim of being able to provide services easily to the public in notifying and reporting criminal acts or anything else to the police. So that the police are able to know more about the location of the incident correctly and can take preventive actions to overcome it. The management of changes made within this police institution can improve performance efficiently and effectively towards the achievement of objectives to ensure public security.
Task Analysis of Facebook users on Frequently used Menus
Authors: Setiawan Agus , Artha Emilya Ully , Arumi Endah Ratna , Sunarni  , Primadewi Ardhin , Nugroho Setiya 
Published: August 2019

Abstract
This paper presents case studies of tasks Facebook users on frequently used menus. 40 respondents involved in testing this analysis task. The respondents use the device they used to use their mobiles to perform some assigned tasks. The completion of this task is timed and then reported. The results of this study are the shortest time to complete the task on the Facebook menu is the task “Like & Comment”, where the required time average 10.72 seconds.
Sales and Marketing Models of SMEs Products through Online Marketing
Authors: Sulistiyo S Dedi 
Published: August 2019

Abstract
This study aims to analyze Online Marketing, sales and marketing of SMEs, the implications for online purchases trust with a positive impact and tested partially, and simultaneously. In this study the methods used are quantitative methods, and to analyze them using multiple linear regression. Variables measured include: Online marketing, sales and marketing of SMEs as independent variables and online purchasing trust as the dependent variable. The object of this study is the SMEs actors as an analysis unit. This study uses data sampling techniques by means of a saturated random sampling of 100 data from respondents of SMEs. The statistical analysis used in this study is testing classical assumptions and testing the independence, linearity and correlation hypotheses. The results show significant influence on Online Marketing, sales and marketing of SMEs, and online purchase trust. Online Marketing variables, sales and marketing of SMEs have implications for online purchase trust both partially and simultaneously.
Comparative Analysis of Gaudy Booch and Ivar Jacobson Methods in Mercu Buana Mobile Application Database Design
Authors: Ranggadara I , Sfenrianto  
Published: August 2019

AbstractAttendance, presence, or attendance recording is very important for every lecture, office or other organizational activities. Currently, recording student attendance activities at Mercu Buana University is by calling one by one the students by the lecturer, then the lecturer signs attendance on the special application form for lecturers that have been provided. For this reason, it is necessary to design a database to create the database. The analysis used is SWOT to compare between Gaudy Booch and Ivan Jacobson methods. This comparison is used to find out which method is appropriate in implementing a better database. Based on the database design that is made to further facilitate archiving of attendance, increase data efficiency. From the results of the research with class diagram description objects, the class diagram and database model that we use is from Ivar Jacobson, because it shows how actors from class diagrams point to Object-Oriented Software Engineering that has advantages that are easy to learn and have notation simpler.
Measurement of Performance Value for New Student Admission Information Systems
Authors: Taufiq Muhammad , Anggarasari Nandhini Hudha , Mirawati  
Published: August 2019

Abstract
New Student Admission for Universities is the frontline in recruiting new students, therefore the New Student Admission performance needs to be measured to provide excellent service for prospective students as consumers who achieve customer satisfaction values, and for that it requires proportional and professional use of Information Technology, so that it is fulfilled speed and acceleration in winning market competition, and this is inseparable from the quality of information produced from a New Student Admissions Information System, while measurements are made using the Time Motion Study method, which measures the time needed to complete one type of activity in a given period (T) in the form of measurement of productivity time (tp) and response time (tr), so that productivity volumes can be known. This measurement is expected to provide an increase in the value of the University in society in general as well as an increase in the accreditation of the University in particular, as a result of which has an impact on the selling value of the products of the wider community.
The Development of Movie Scenario on Thematic Learning Process Based on Local Culture
Authors: Oktavianti I , Nugraha F , Ratnasari Y , Zuliana E 
Published: August 2019

Abstract
This research aims to produce the thematic learning scenario based on local culture focussed on occupation theme. The development of movie scenario thematic learning purpose to give direct learning experience, the learning scenario used local culture around the students. The research method used in this research was research method and development with 4-D model by using descriptive analysis technique as the analysis technique. The development of learning movie scenario was only on stage of define, design, and develop. The define stage was the basic competence analysis of occupation theme and local culture material. The design stage was the stage that design the lesson plan and teaching material for all kinds of occupation based on local culture, then designed thematic learning movie scenario based on the local culture. The develop stage was the stage that developed the learning scenario by involving the experts of curriculum 2013 thematic learning, local culture material, learning media, learning movie, teachers, and conducting limited trials. The result of the research showed that the scenario of learning movie was very decent to be used which the validation from the experts of thematic learning, local culture material, learning media, and learning movie.
Let’s Listen Through WhatsApp: An energizing listening exercise in EFL Class
Authors: Setyowati Yulis 
Published: August 2019

Abstract
This research is focused on analyzing the impact on the use of ‘WhatsApp’ as a media to develop listening skill for a group of 26 ten-grade senior high school students. Since the phenomenal booming about the tremendous use of smartphone in real-life among teenagers which might bring negative effects, it is urgent to empower the phenomenal behavior of teenagers toward their mobile phone in the context of language learning. The 26 ten grade senior high students were put in ‘WhatsApp’ group messenger. The learning activities were performed in ‘virtual’ ‘WhatsApp’ group class called ‘Fun In English’. The one-group pretest-posttest design was implemented in this study. The instruments used in this study were 1) learning activities 2)English comprehension tests (pretest and posttest) and 3) a questionnaire and interview of the students ‘response. Regarding the data analysis, mean, percentage and t-test scores for the dependent sample were employed. The result indicated that 1) the students’ English listening comprehension ability increased significantly after learning with MP3 which uploaded in ‘WhatsApp’ group called ‘Fun In English’. 2) the questionnaires told that the students reflected a good response. The mean score of pre-test was 6,9 then mean score of posttest was 8,7 which means that there is a significant increasing score. The students’ score were increased after the treatment which is the students was given learning activities through ‘WhatsApp’ group exercises. Thus, the learning model is confirmed to be effective and powerful. The students gave their response through questionnaires that reflected their enthusiasm, intimate interaction, and enjoyable learning activities.
Development of Guidance and Counseling’s Model Services with Bibliotherapy Techniques to Improve Prosocial Behavior For Student of Primary School
Authors: Chitra C I , Noor M 
Published: August 2019

Abstract
Counseling guidance services need to be applied at all levels of education because the process of learning and learning experience at the level of early education and primary school will influence future behavior at the junior high school, high school and college level. Therefore, based on the results of the pre-research obtained and supported by the opinions of experts, there is a need to develop models of guidance and counseling services for elementary school students with bibliotherapy techniques to improve prosocial behavior. This type of research is research and development based on the principles and steps of Borg & Gall. The results of this study were: (a) 1) The level of prosocial behavior of students in SD Negeri 1 Ciporang globally before being treated was in the medium category, after being given treatment in the high category. (b) Produced a model of counseling services for elementary school students with bibliotherapy techniques to improve students’ prosocial behavior consisting of 7 components, namely 1) Rational, 2) Vision and mission, 3) Objectives, 4) Contents of Services BK elementary school students with bibliotherapy techniques, 5) System Support, 6) BK Service Procedure for elementary students with bibliotherapy techniques, 7) Evaluation and Follow-up. (c) BK Service Model Elementary students with bibliotherapy techniques are effective in improving the prosocial behavior of students of Ciporang Primary School
Implementation of Index Card Match Learning Model with Problem Posing Approach Assisted by MATLAB Software to Improve Students’ Problem Solving Ability
Authors: Nuraeni Z , Rosyid A 
Published: August 2019

Abstract
The purpose of this study was to examine the steps of the Index Card Match learning model with the problem posing approach assisted by MATLAB software and its effect on the problem solving ability of high school students. This research is a quasi-experimental research with non-equivalent control class design. The population in this study were all students of class XI Senior High School 2 Kuningan, with purposive sampling technique taken two classes as a sample. A distinctive feature of this combined model is that students make their own questions and answers on separate cards, so that after the cards are collected and randomized, students are asked to find suitable questions and answers. While the results of the data analysis showed the average initial problem solving ability of students in the experimental class is equal to the average initial ability of students in the control class with a significance value of 0.212. But after the treatment, there were differences in the average problem solving ability in the experimental class and control class that is equal to 3.38 and p-value of -2.563 with asymp. sig 0.010, rejection for H0 which means the mathematical problem solving ability in the experimental class is better than control class.
The Effect of English Classroom Tasks In Contextualized and Localized on Students’ Performance
Authors: Nuraida Ida , Wulansari Sisca 
Published: August 2019

Abstract
This study is determined how the students respond to contextualized and localized English classrooms. The research used true experiment research, the aimed of this research is to determine the effects of contextualized and localized English classroom task on students performance. It is investigated contextualized and local English based on students perception in English classrooms task. It determined the terms of students’ level of participation and the score of summative task. This research used perspective sampling consist of 23 student at A class and 25 students at B class enrolled at the regular student at English Education Department, it’s serve as the respondents of the study and finding reveal that the students respond to English education tasks active in the class in participating. The result show have very high level of performance in term of participation and summative test score, and the student strongly agree with conceptualized and localized English classroom task.
Study of Protected Current for Stainless Steel and Carbon Steel Cathode from Rust Attack to Determining Optimum Flow of Electricity
Authors: Yuliati A , Nofiyanti E 
Published: August 2019

Abstract
Rust protection in a construction can be done by several methods such as the use of organic or inorganic layers of protection, anodic protection, and cathodic protection method. Cathodic protection consists of protection by using sacrificial anode as a producer of a protected current and using a protection current generated by an external power supply continuously. In a water-immersed construction commonly used sacrificial anode as a protection against rust in the construction, such as water tank. A sacrificial anode (rod, usually Magnesium or Zinc) is inserted in the construction. When submerged, the anode will be submerged. Water serves as an electrolyte solution. By connecting the sacrificial anode with the construction, a cathode anode system is formed. The anode releases the electrons and undergoes an oxidation reaction, while the cathode undergoes a reduction reaction. By achieving an equilibrium between the oxidation and reduction reactions, the construction is protected from rust. Considering the above, then made the system of protection against rust that is more practical by using the current protection method. The difference with the sacrificial anode method is the use of an external power supply to produce a current (direct current) that is passed through an inert anode such as aluminum, stainless steel or graphite, so no anode replacement is required as long as the tank is used. Using a simple circuit, the amount of electric current flowed can be adjusted according to the dimensions of the tank. Electric current used is also relatively small so it is safe for users. To study the above system made a model use stainless steel and carbon steel material to be able to determine the optimal protection current.
Tectonic in Architecture in Capability of Capturing Epoch
Authors: Priyomarsono Naniek Widayati , Surya R , Budiman D S 
Published: August 2019

Abstract
Globalization excludes territory, carries out universal spirit as more emphasizing univalence rather than multivalence. In architectural context, universal perspective is just at doubt in its capacity to respond epoch challenge. Modernity proliferating into diversity of life aspects causes architecture attaint to hegemonic status not rich of colours, texture, ornament, and not rationalistic. Tectonic aspect in architecture is expected to be able to uplift locality dignity rooted from existing culture, nature, and material resource. This research is done with a qualitative, deductive and verificative method with study object of architectural work already available. Field observation result refers to a theory setup deductively from journal collections studies; expert is opinion so that it results in tectonic variable formulation in architecture. Research object selected is architectural work to explore tectonic architecture, known adept at exploring natural potency and local cultural riches as well as material usage of local building. A result obtained is a comprehension on tectonic in architecture and all aspects constituting it. A comprehension gained is tested to architectural work with perspective up to their implementation in the field. Finally, it concludes that tectonic aspect in architecture can be a creation alternative of locality architecture in Indonesia.
Monitoring Factors in Quality Control of Reinforced Concrete Casting Works
Authors: Luthan P L A , Sitanggang N 
Published: August 2019

Abstract
Quality control of casting work is very necessary to be prepared to minimize material misuse and procedural errors in the field, so that it will produce quality concrete. Concrete qualityt that is not in accordance with planning is due to the absence of guidelines that will be a reference for a supervisor so that the implementation of the work is not in accordance with the quality standards used. The purpose of the study was to determine the factors of casting job supervision that can be used as a reference for supervision of reinforced concrete works. The study was conducted in the city of Medan by survey method. The research sample used was a multilevel development project located in the city of Medan with a total of 20 construction projects with purposive random sampling method. The research instrument is the supervisor’s guide in the field and interviews developed by the research team. Research data obtained and processed using descriptive statistical analysis. The results of the study are that the factors for supervisors so that the casting can run well and in accordance with the quality of works are as follows: 1) Preparation stage: determine the quality of concrete, working track (ready mix mobilization), equipment placement, workforce preparation, and schedule casting. 2) Implementation phase: determination of casting lines, slump testing, manufacturing of test objects, Pouring / concreting and compaction. 3) Finishing Phase: Finishing, Maintenance, Scaffolding and mold opening.
Exploratory Research on Green Information Technology Knowledge
Authors: Wibowo S , Nada N Q , Novita M , Budirahardjo S 
Published: August 2019

Abstract
In this study we focused on the extent of green IT knowledge and the effort to minimize energy use and electronic waste (e-waste). It was conducted by distributing questionnaires to students of the Faculty of Engineering and Informatics, Universitas PGRI Semarang. By using random sampling technique, we considered 91 students as the total sample size. It consists of 20 participants from informatics study program, 7 participants from architecture study program, 4 participants from electrical engineering study program, 20 participants from civil engineering study program and 33 participants from mechanical engineering study program. The results show that our participants are 16-25 years old. They have been using laptop/PC for about 5-10 years and 3-5 hours per day. In average, they owned only one laptop/PC. In a day, they print more than 50 sheets using one-sided mode. It implies that our students actually understand enough the essential of green IT. Nevertheless, efforts to minimize e-waste must be increased.