Indonesia Conference Directory

Corresponding Author
Ali Ismail

Institutions
1Science education program, Prosgraduate School, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No 229, Bandung 40154, Indonesia
2Department of physics education, Institut Pendidikan Indonesia, Jl. Pahlawan No.32, Garut 44151, Indonesia
3Department of physics, Faculty of science and information technology, Catholic Parahyangan University , Bandung 40141 Indonesia

Abstract
There are extensive researches related to using of augmented reality as a learning environment to support learning science activities (Yoon et al., 2012). To continue the research, this present study investigated of using augmented reality to enhance students- learning outcome in physics learning context. Through a pre-experimental design, this study aimed to reveal how the students- learning outcome dealing with electricity concepts has been investigated. There were 32 participants who were college students contributing to do physics learning in an augmented reality environment. Results indicated that students depicted the great cognitive gains when using augmented reality to support their learning process. By using the digital augmentations, this present study also provided about how such technologies affect students- interest in physics learning.

Keywords
augmented reality, electricity concepts, learning outcomes.

Topic
Physics Education

Link: https://ifory.id/abstract/nUhzX3evHFEc

Corresponding Author
shadli rolaskhi

Institutions
Universitas Komputer Indonesia (UNIKOM)
Jl. Dipati Ukur No.112-116, Kota Bandung 40132, Indonesia
shadli_rolaskhi[at]mahasiswa.unikom.ac.id

Abstract
This research aims to develop a strategy for the solar panel package business in the city of Kupang. This research uses SWOT analysis and SWOT matrix. SWOT analysis is used from the start to improve internal and external business factors. where this research is a business strategy that focuses on production by considering aspects of strengths, strengths, threats, weaknesses and weaknesses. The results of the SWOT matrix will determine the appropriate strategy for developing the Solar Panel Business Package

Keywords
Develop strategy, SWOT analysis, Matrix SWOT

Topic
Entrepreneurship

Link: https://ifory.id/abstract/3mfTQ4vUJtdq

Corresponding Author
Hud Djolly

Institutions
Program Studi PPKN FKIP UNTIRTA

Abstract
Integration of digital technology in public policy, at least can be seen in three forms: the establishment of the internet of Things (IoT), digital response feedback such as devices in smartcities, internet-based channels such as online petitions, online public services. Public policy is implemented on the basis of ontological citizen interaction, as their subject and also object of government. In the digital integration, citizens are mediated by the presence of digital devices with assumption that each digital device is authorized by person to interact. The existence of citizens is represented by presence of technological devices based on a particular node system. Integration of digital technology has led to a new pattern of representation from individual representation into the representation of digital nodes in patterns of management of public interests, government services to decision making. Digital representation is assumed to be an actual representation so that it raises the issue of the legitimacy of the stimulus node-based digital policy making, and needs to re-occupy digital representation which is vulnerable to many manipulation potency. This research to examine the status and validity of digital node-based public policy making based on the perspective of citizens rights in government. Using a phenomenological approach to digital interaction and government by examining the trend of using IoT, digital services, the internet interaction. The phenomena studied include the presence of smartcity, digital public services, digital interactions between citizens and government. This research will produce a recommendation with two possibilities: (i) strengthening the legitimacy of digital interactions in government, or (ii) delegating the involvement of digital devices in public policy, evaluating the personal interactions of citizens with government.

Keywords
Digital interaction, Citizenship, Public policy, IoT

Topic
Digital Governance and Citizenship

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

Corresponding Author
SELA MAWARTI

Institutions
a) Mathematics Education, School of Postgraduate Studies, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia
*selamawarti[at]gmail.com
b) Departement of Mathematics Education, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
This article aims to examine the importance of social justice in mathematics education for Sustainable Development. One of the seventeen targets in Sustainable Development Goals is justice, peace, and long term global cooperation for Sustainable Development. Education is a vital element for realizing Sustainable Development . Mathematics is mother of science. Because of that, social justice in mathematics education plays an important role in realizing Education for Sustainable Development. This article will outline the importance of social justice in mathematics education and how social justice in mathematics education can support the realization of Sustainable Development objectives. The method used is a study of literature sources relevant to social justice in mathematics education for Sustainable Development. After studying this literature, we recommend for teacher to implementation sosial justice in teaching mathematics.

Keywords
Social Justice; Mathematics Education; Sustainable Development

Topic
Mathematics Education

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

Corresponding Author
Ivan Kurniawan

Institutions
Universitas Komputer Indonesia

Abstract
This study aims to propose smoking cessation methods through experiments on color perception in cigarettes. Using qualitative methods by measuring the desire to smoke using 5 Likert scale levels. After giving different stimulants in the form of 8 cigarette colors, respondents will fill in the desires based on levels ranging from those who are very unwilling to those who really want to smoke, then interviews and descriptive analysis will be conducted. The highest tendency to desire smoking is in white cigarettes, followed by black cigarettes. The tendency to be very unwilling to smoke appears in purple and orange cigarettes. Further research needs to be done considering this study only involved one group of adolescents in the age range of 18 to 24 years old. Through interviews, it appears that the desire to smoke that arises when seeing the color white in cigarettes is caused by a general condition, feels normal with the color of cigarettes on the market. But purple visuals on cigarettes make smokers feel weird, and feel they are sucking on something that is toxic, or not tasty. This condition certainly also illustrates how color perception can be used as a proposal to help cigarette addicts begin efforts to stop smoking, or at least reduce the desire to smoke.

Keywords
Smoking, cessation, color, perception

Topic
Visual Communication Design and Interior Design

Link: https://ifory.id/abstract/PRE2qJtKfZy7

Corresponding Author
Abdul Basit

Institutions
(a) Communication Science Study Program
UniversitasMuhammadiyah Tangerang
Tangerang, Banten- Indonesia
*fitria78santi[at]gmail.com
(a) Communication Science Study Program
UniversitasMuhammadiyah Tangerang
Tangerang, Banten- Indonesia
basit.umt[at]gmail.com
(b) Management Study Program
UniversitasMuhammadiyah Tangerang
Tangerang, Banten- Indonesia
moeljadi72[at]gmail.com

Abstract
This study aims to find out how the personal branding of Sandiaga Uno in approaching Indonesian millenial generation in the 2019 Presidential Election. In this research, the personal branding aspects studied were focused on three aspects of personal branding: self-identification, political products, and positioning. This research is a qualitative descriptive study and uses content analysis as a data analysis technique. The results of the study show that the values that become attributes of self-identification Sandiaga Uno are risk taking and the ability to build teamwork. To support the spirit of the millennial generation, most of whom enjoy the world of entrepreneurship, the OK OCE Program is one of Sandiagas political products for millennial generation. These values and ideas are further supported by appearance of Sandiaga who tends to be stylish both in formal and informal settings. Sandiagas stylish appearance was also supported by his habit of never leaving sports activities so that his sporty appearance was not easily forgotten by the public.

Keywords
Personal branding, Indonesian millennial generation, 2019 presidential election, Sandiaga Uno

Topic
Education and Social Change

Link: https://ifory.id/abstract/LzmPQCrwuRJ2

Corresponding Author
andriyani andriyani

Institutions
a) Universitas Ahmad Dahlan
Jl. Pramuka No. 42 Sidikan, Yogyakarta- Indonesia
*andriyani[at]mpmat.uad.ac.id.
b) Universitas Lambung Mangkurat
Banjarmasin, Indonesia

Abstract
The aim of this research is to develop a Braille Geometry module based on visual impairment students synthetic touch skill with RMT approach that was valid dan practical using ADDIE development design. This module designed to optimize students synthetic touching skills and develop RMTs three cognitive functions i.e the cognitive function of qualitative thinking, quantitative thinking with precision, and abstract relational logic thinking. A module was validated by media experts and material experts. The practicality of the module is measured by the students response questionnaire. Data were analyzed using descriptive quantitative. The results showed the validity of geometry Braille module from experts showed valid in 86,2%. Some revisions are needed especially on the representation of quadrilateral model which need appropriating to students physiological structural abnormalities. Based on data collected from seven students who have completely filled 10 statements in the questionnaire, about 87,5% of students stated they could understand the questions very well and they agreed that module enhanced their understanding of quadrilateral betweenness relations. Thus those result indicated a high level of practicality. This research concludes this module has good validity and practicality, especially for visual impairment students geometries object understanding that has limited visualization.

Keywords
Braille, Geometry, Module, visual impairment, RMT

Topic
Mathematics Education

Link: https://ifory.id/abstract/kgJ4bqpnBGNv

Corresponding Author
satria indra praja persada

Institutions
Universitas Komputer Indonesia

Abstract
Indonesia has a superhero, one of which is the gundala son of the gundala lightning which is a superhero character by Harya Suraminata (Hasmi) in 1969, and in 2019 gundala was re-appointed to become a big screen film in 2019 and directed by Joko Anwar in Gundala 2019 itself. changes to the appearance of Gunadala itself can be seen from the poster of the 2019 Gundala Film

Keywords
Indonesia , Superhero , Poster

Topic
Visual Communication Design and Interior Design

Link: https://ifory.id/abstract/Z32B4tbPh6wH

Corresponding Author
Arini Rosa Sinensis

Institutions
Program Studi Pendidikan IPA Universitas Pendidikan Indonesia

Abstract
Abstract This study aims to improve the ability of reflective thinking through collaborative problem solving based on thermodynamic learning. The method used is descriptive quantitative analysis, a sample of 16 prospective physics teacher students who are following thermodynamic learning. The instrument used in this study uses a modified Kember reflective level level scale. This research was conducted for 3 meetings but began by holding a pre-test to see the improvement of students reflective thinking skills from the beginning to the 3rd meeting, the learning model used was collaborative problem solving. The results showed that reflective thinking ability increased at Reflection and Critical Reflection levels while in habitual action and understanding did not increase. This shows that through the application of collaborative problem solving models in thermodynamic learning can improve the ability of reflective thinking students of physics teacher candidates on high-level thinking

Keywords
Reflective thinking, thermodynamics, collaborative problem solving.

Topic
Physics Education

Link: https://ifory.id/abstract/6nkVjf7UcuN4

Corresponding Author
Lia Warlina

Institutions
Department of Urban and Regional Planning
Faculty of Engineerin and Computer Science
Universitas Komputer Indonesia

Abstract
The research aims to evaluate sustainable agriculture land policy in Cianjur Regency relates to land conversion and its impact on farmers. The method of this study is surveys and data collection from a secondary source. The survey was conducted to obtain information from the farmers. The sample farmers were from Cikancana Village. The study result showed that regional spatial plan had stated sustainable agricultural land policy. However, the government of Cianjur Regency has not yet determined the specific area of sustainable agriculture land. For the farmers, there are incentives and assistance from the government for farmer groups. As a conclusion, the government of Cianjur Regency has not wholly implemented the sustainable agriculture land policy.

Keywords
policy, regional spatial plan, sustainable agricultural land

Topic
Government Science

Link: https://ifory.id/abstract/YeDJrB7RZw6q

Corresponding Author
Khatriya Tiffani Tamimiya

Institutions
(a) Post Graduate of Science Education, Universitas Negeri Yogyakarta, Jl. Colombo no. 1 Yogyakarta
(b) Biology Education, Universitas Negeri Yogyakarta, Jl. Colombo no.1 Yogyakarta
(c) MTsN 2 Jember, Jl. Merak no.11 Slawu Jember

Abstract
Abstack. This study aims to: (1) find out the feasibility of LKPD IPA integrated project based learning of Mount Ijen-s local potential for improving the understanding of Earth layer concept and the creative thinking of students, (2) knowing the effectiveness of LKPD IPA integrated project based learning of Mount Ijen-s local potential with the understanding improvement Earth layer concept and the creative thinking of students. This study refers to the the development models of 4D Thiagarajan and Sammel. This research conducted in SMPN 1 Tamanan. The empirical test was conducted in 1 experimental class consisting of 28 students and 1 control class consisting of 24 students. The Integrated PjBL LKPD of Mount Ijen Local Potential is worthy of being used as teaching material by improving the concepts and creative thinking of student understanding with a very good categories. LKPD IPA based on integrated project based learning of the local potential in Mount Ijen is significantly effective for the improvement of students understanding of concepts and creative thinking with a significance value of 0,000 (sig <0.05).

Keywords
LKPD, PjBL, Local Potential, Concept Understanding, Creative Thinking, Eart Layer

Topic
Science Education

Link: https://ifory.id/abstract/VH3g6UMjpfQh

Corresponding Author
Tina Setriani

Institutions
Faculty of Postgraduate Universitas Komputer Indonesia

Abstract
Social media marketing is the one of digital marketing strategy. Social media marketing will use top digital platforms such as Facebook, Twitter and Instagram which is daily used by public and using content marketing, advertising, or influencer (brand ambassador). Research aimed to analyze about the effectiveness promotion using digital platforms by content marketing, advertising, and influencer who promote the products. The research method used is case study. Case study research is a one of methodology that has commonly used in social sciences which is investigates a phenomenon within its real-life context. This study will focus of research on promotion using digital platforms. The results obtained that advertising on digital platforms will increase and more engage on costumers in promoting the products. Content marketing and influencer required extra selectivity and content so that costumers will more interested to try the products.

Keywords
Digital Marketing, Travel Industry

Topic
Management

Link: https://ifory.id/abstract/pK6nUaktPbQC

Corresponding Author
Nur Hidayati Firdiani

Institutions
a) Pendidikan Matematika, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl Dr. Setia Budhi No. 229, Bandung 40154, Indonesia
*nurfirdiani[at]upi.edu
b) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setia Budhi No. 229, Bandung 40154, Indonesia

Abstract
Communication skills were one of the abilities needed in the 21st century, but the reality showed that students mathematical communication skills were still low. The aim of this study was to analyze the mathematical communication abilities of male and female students for the content of Space and Shape. The research method used was the qualitative research method. The participants of the study were 6 male students and 6 female students of class VIII Junior High School with age characteristic between 13 -14 years old and have the ability of high, medium and low in mathematics. Data was collected by using test and interview. Data analysis used includes data reduction, data collection, and conclusions. The study results showed that both male and female students with high abilities in general mathematics are able to express situations in the form of pictures or mathematical models, analyze and evaluate mathematical ideas in other forms, but male and female students who have medium and low abilities in general mathematics still have difficulty expressing situations in the form of drawings or mathematical models, analyzing and evaluating mathematical ideas in other forms.

Keywords
Gender; Mathematical Communication

Topic
Mathematics Education

Link: https://ifory.id/abstract/cgHb3NRaXUKY

Corresponding Author
NENG SUSI SUSILAWATI SUGIANA

Institutions
UNIVERSITAS KOMPUTER INDONESIA
Jl. Dipati Ukur No 112 - 116 Bandung

Faculty Magister of Management

Abstract
Population economic turnover can not be separated from a business activity. The superiority of business people who are always pursued by the tight development of the world of information must follow in the footsteps of developments. Kabupaten Bandung is an area in West Java, which has business potential, but it is phenomenal where business people who cant stand competition. Limited knowledge of information technology that can basically support its business. In this study using descriptive and verification research, said Sugiyono (2011: 29) method to describe and analyze the results of research but not enough to be a broader conclusion. For this study, it was concluded that the application of management information systems, entrepreneurial , business innovation had an effect to performance of UMKM entrepreneur in West Bandung . That concluded that the application of management information systems, entrepreneurial, business innovation had an effect on the performance of UMKM euntrepreneurs in west Bandung.

Keywords
Information System, Entrepreneurship, Business Innovation, Performance.

Topic
Entrepreneurship

Link: https://ifory.id/abstract/J9y4xGXtdBqK

Corresponding Author
Rika Faridah

Institutions
Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudi No. 229 Bandung
*faridahrika[at]gmail.com

Abstract
The problem is an incompatibility between goals or expectations and reality. Identifying the level of students problem solving abilities is very important. It is due to the fact that the problem solving ability is related to how students face occurring problems. Therefore this study aims to identify mathematical problem solving ability. This research was conducted on class VII students in one of the junior high schools in Kota Bandung. The material chosen in this study was a quadrilateral flat build. The results showed the percentage of achievement of problem solving indicators that the mathematical problem solving ability of junior high school students in quadrilateral material was still low with an average score of 28.41%. In addition, when students solve a given problem, they immediately use the formula and enter the numbers listed on the question without understanding which strategy should be used and not checking the validity of the results or answers. This ability can be improved by doing problem solving oriented learning and familiarizing students according to the stages of problem solving.

Keywords
Mathematical problem solving ability, Quadrilateral

Topic
Mathematics Education

Link: https://ifory.id/abstract/mwxMQUTdX34z

Corresponding Author
ALAM GUMILANG RAMADHAN

Institutions
UNIVERSITAS KOMPUTER INDONESIA

Abstract
The current condition of competition in the health sector is getting tougher. This is caused by many people use hospital facilities to obtain health services. Satisfaction patient is the most important thing that must be achieved by every health facility. As the spearhead health services, health insurance programs organized by the Guarantee Organizing Agency Social Health in hospital outpatient units are required to be able to provide health services that can meet patient expectations. However, in organizing a guarantee program health, there are still some problems, one of which is a serious obstacle for patients waiting in line with a longer time to get health services so that patients get service that is not maximal. Then the assessment for customer satisfaction is derived from services at the Health Insurances Companies, where participants are served for administrative and information processes. At this stage there are several problems including the existence of a system disturbance which causes the system to malfunction and finally the service process is constrained. This study aims to determine what factors influence customer satisfaction. This research uses quantitative methods. This type of research is descriptive and quantitative, with a questionnaire collection method. The results of this study are service quality, one of which affects customer satisfaction.

Keywords
Customer Satisfcaction, Health Insurances Companies, Service Quality

Topic
Management

Link: https://ifory.id/abstract/nQ8Bp4xXZ97r

Corresponding Author
Muhammad Zaki

Institutions
Universitas Samudra

Abstract
Based on the results of the preliminary study in junior high school, it was found that there was no development of a test that developed students high-order thinking skills (HOTS). This study aims to develop HOTS-based test questions proposed by Bloom revision which includes C4 (analyzing), C5 (evaluating) and C6 (creating). This study aims to produce HOTS math tests on exponents that are valid and practical. This research is development research (R & D) with a development model based on Tessmer which consists of two stages, namely the preliminary and stage formative evaluations. The trial of the question was held in class IX of SMP Negeri 5 Langsa. The instruments of data collection include question grids, question sheets, validation sheets, and questionnaire sheets. The results of the development of HOTS questions are a set of questions consisting of grids and HOTS questions with 10 questions in the form of descriptions that valid and practical criteria. The set of questions is declared valid with an average score criterion of 85% in a very valid category and declared practical with a score criterion of 80% in a very practical category. The HOTS problem developed also had a good potential effect on students high-level thinking abilities with an average score of 64,2 which showed students high-level thinking skills in good categories.

Keywords
high order thinking skills, Exponent

Topic
Mathematics Education

Link: https://ifory.id/abstract/QWLRw2Pjqtzk

Corresponding Author
Abdullah Al Aliyi Surtawijaya

Institutions
a) Universitas Komputer Indonesia
Jalan Dipati Ukur 112-114, Bandung 40132, Indonesia
aasurtawijaya[at]mahasiswa.unikom.ac.id

Abstract
This study aims to develop strategic marketing plan for artificial flower bouquet business in Bandung City. The method used in this study is qualitative analysis descriptive through marketing mix 4Ps theory and Porters five competitive forces theory. The result of the research produced strategic marketing plan for all marketing mix 4Ps aspects such as product, price, place and promotion. The resulting strategic marketing plan becomes more focused because it is produced on the basis of Porters five competitive forces. This research can be helpful for the business owner especially to take right strategic marketing plan .

Keywords
strategic marketing plan, marketing mix, five competitive forces

Topic
Entrepreneurship

Link: https://ifory.id/abstract/B7K3VbhCT42j

Corresponding Author
Laely Farokhah

Institutions
a) Program Studi Pendidikan Guru Madrasah Ibtidaiyah, Fakultas Agama Islam, Universitas Muhammadiyah Jakarta, Jl. K. H. Ahmad Dahlan, Tangerang Selatan, Indonesia
b) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

Abstract
The facts based on the preliminary study showed that most of students find difficulties to communicate mathematical ideas. The present study is aimed to describe the improvement of mathematical communication ability between students who learn through project based learning using mind map technique and students who learn through project based learning without mind map technique. This study used quasi experiment using non-equivalent group design. 63 students of one of elementary school in Bandung city were taken as subject of this study. The instrument of this study used mathematical communication test. The data were analyzed using non parametric statistic. The result showed that the improvement of mathematical communication ability of students who learn through project based learning using mind map technique is better than the improvement of mathematical communication ability of students who learn through project based learning without mind map technique.

Keywords
mathematical communication, project based learning, mind map, elementary school

Topic
Mathematics Education

Link: https://ifory.id/abstract/xMF9D4tf72Yr

Corresponding Author
Reinhart Simanjuntak

Institutions
Unikom

Abstract
Industries 4.0 currently is growing up, there are subsidiaries for industries 4.0 like cyber-physical system, IOT, cloud computing and cognitive computing. one of that subsidiary is IOT, IOT have role to controlled the system by the internet, IOT have role to collect some information from the sensor that are we defined, from that collection of all data from the sensor this paper tried to combine decision support system, so it help the human to making the decision, in this paper try to controlled smart house, so that the owner of house could make decision, from some sensor that apply to this IOT.

Keywords
Industries 4.0, IOT, data, sensor, decision support system

Topic
Accounting

Link: https://ifory.id/abstract/NJ9VcrDf7duK

Corresponding Author
Agung Anggoro

Institutions
(a) Mathematics Education, School of Postgraduate Studies, Universitas Pendidikan Indonesia Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
(b) Department of Mathematics Education, Faculty of Mathematics and Sciences Education, Universitas Pendidikan Indonesia Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia

Abstract
This qualitative study aims to investigate students- responses on a constructed didactical design which is aimed to reinvent the law of sine. The participants are 30 students. We constructed a didactical design including the activities steps and the prediction of student responses which are consists of expected and unexpected responses. We also prepared the anticipation for each unexpected responses. From the didactical design implementation, we obtain: 1) some students performed similar responses with our prediction in some section; 2) some students performed unpredicted responses in some section, so we need to perform unplanned anticipations; 3) some students performed unpredicted responses but there are the ‘different but equivalent expression- with the predicted responses, we still need to perform the different anticipations. The other result of this study is a revised didactical design.

Keywords
Didactical design; student responses; anticipations; law of sine

Topic
Mathematics Education

Link: https://ifory.id/abstract/Z2ujbTwxJCWE

Corresponding Author
Fenny Febrianty

Institutions
Universitas Komputer Indonesia

Abstract
Digital literacy or internet literacy is the ability to find information needed by using the internet. Today, one of the digital literacies that young people are interested in is reading manga online. When reading manga it means that someone has done an appreciation of manga as a literary work. Literary appreciation is an activity of recognizing, appreciating, understanding, interpreting literary works, then applying the values of literature in life. This study aims to describe the role of manga digital literacy on the literary appreciation of the younger generation. The research is a descriptive study with the same method, and questionnaire as research instrument . The research respondents were students of Japanese Department, University Komputer Indonesia.

Keywords
digital literacy; literary appreciation; manga

Topic
Digital Humanities

Link: https://ifory.id/abstract/Qyzf6U2bPEB7

Corresponding Author
Sufyani Prabawanto

Institutions
a)FPMIPA, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudhi No.229, Bandung 40154, Indonesia
*sufyani[at]upi.edu

Abstract
This research aims to produced a description and comprehensive understanding of the meaning of certain mathematical objects resulting from the depersonalization and repersonalization process. It also described their meaningful experience through real analysis and mathematics selected topic classes. This research was based on a fact that depersonalization and repersonalization processes indicate a new awareness and understanding of teacher thinking processes. The processes need to be developed for mathematics teacher candidates. To examine the processes deeply and to develop them. This study observed deeply the phenomenon of depersonalization and repersonalization of students in real analysis and mathematics selected topic classes. This research used a hermeneutic phenomenology approach. The hermeneutic approach was expected to be able to capture the meaning formed from the process of depersonalization and repersonalization selected concepts from the two subjects and able to reveal aspects of learning experiences. The result of this research, there are some form of depersonalization and repersonalization that appear in the classes. Some of depersonalization are construct an explicit or external knowledge and implicit knowledge, whereas repersonalization are identified learning obstacles, explored possible learning trajectory of the concept, developed didactical design of the concept, explored predictions and their anticipation of possible students- responses, prepared for design implementation, implemented the design, and been doing retrospective analyses.

Keywords
didactical design research; depersonalization; phenomenology; repersonalization

Topic
Mathematics Education

Link: https://ifory.id/abstract/t9JHLTfKAvCy

Corresponding Author
Nungki Heriyati

Institutions
Universitas Komputer Indonesia, Universitas Indonesia

Abstract
Traumatic experience is hard to express easily because it is beyond comprehension and too threatening to be accepted into the consciousness. As one of traumatic history in Indonesia 1965 history is inaccessible and haunts Indonesian. New Order strictly control the history by silencing the certain group that against their power. The fall of New Order regime in 1998 triggers the survivors, researchers, and sympathizers to re-examine the history which resulted in the various reports and testimonies. Literary work is also take part in representing the historical atrocity. Literary work is regarded as a means to give testimony for those who cannot survive during the catastrophe. However, it also faces difficulty in representing the unpresentable event. The paper analyzes how the traumatic experience depicted and problematized in Lasmi [11]. By using the concept of trauma, the paper attempts to unveil the strategy used to represent inaccessible traumatic experience. The analysis underlies two points. First, collective and personal experience are intertwined in historical trauma. Second, silence is part of strategies as well as resistance of the survivor to voicing their voice.

Keywords
Indonesia, Lasmi, traumatic experience and 1965

Topic
Digital Humanities

Link: https://ifory.id/abstract/CmeG6tvbPpnJ

Corresponding Author
Ummul Khaira

Institutions
a) Magister Pendidikan Matematika, Sekolah Pascasarjan, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia
*khairaummul7[at]upi.edu
b) Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia

Abstract
This study aims to find out how service, the role of the teacher in facilitating slow learners in mathematics learning, and other constraints faced. This research is a case study in a junior high school in the city of Bandung. Participants in this study were three class VIII students. This research was carried out through observation, interviews with slow learner students, and mathematics teachers. The results of the study show that children who are classified as slow learners still have not been well facilitated in achieving predetermined mathematics learning goals. Slow learners need a longer study time than their peers, so they need special education services. One of alternative solution that can be done by teachers is that teachers sholud pay special attention to the process of learning mathematics for slow learner students. The importance of teachers conducting clinical assessment, giving the direction to the slow learner students in the learning process, and helping the students to overcome the difficulties faced by slow learner students.

Keywords
clinical assessment, mathematics learning for slow learner

Topic
Mathematics Education

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

Corresponding Author
Irma Rochmawati

Institutions
Universitas Komputer Indonesia

Abstract
In todays digital economy, an innovative payment solution is needed. OVO is a smart application that provides convenience in transactions and payments for all needs. OVO is a digital payment tool that works with various merchants in Indonesia. The OVO application can not only be used to pay for purchases at merchants but can also be used to pay for several monthly billing products. The ease of payment of various needs in one application is the main attraction of OVO for its users. The goal of this research is to study user interface design on mobile payment application that affect the intention to use in online or offline transactions. The research method uses design analysis on the appearance of the application that has a function, ease of use, user trust, and design aspects in its presentation. There are three methods used in this study, data collection, analysis, and testing to see opportunities for the implementation of e-payment as a payments tool. The results shows that OVO is one of the mobile payment applications that has usefulness, ease of use, trustworthy and attractive designs.

Keywords
User Interface, Design, Mobile, Payment, Application

Topic
Visual Communication Design and Interior Design

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

Corresponding Author
Hasti Amrih Rejeki

Institutions
School of Meteorology Climatology and Geophysics, The Agency for Meteorology Climatology and Geophysics of Republic of Indonesia
Jalan Perhubungan I No. 5, Komplek BMKG, Tangerang Selatan 15221, Indonesia
*hastiamrihrejeki[at]gmail.com

Abstract
The Indonesian Maritime Continent is an area of propagation and crossing of Madden Julian Oscillation (MJO) in phases 3, 4, and 5. The active MJO causes the increasing of convective activity and strong winds on the area it passed. In the active phase, the ocean will get a response from MJO activities as the response to strong westerly winds. The depth of the thermocline in the tropics varies from season to season and from year to year. MJO, as the intraseasonal variability is one of the causes for the variations in the depth of the thermocline layer. The objectives of this study are to investigate and properly understanding the equatorial thermocline dynamics related to MJO activity in the Indonesian Maritime Continent. By using the temperature data in 0 - 400 m of depth which obtained from Marine Copernicus, this study will investigate the equatorial thermocline dynamics which are precisely at 5N, 0, and 5S of latitude in the MJO phase 3, 4, and 5 area during the period of 2018. The results showed that the dynamics of the thermocline depth has a response to MJO according to the location of the activity. However, it also decreases the thermocline depth in the northern (southern) equator. The results of this study also show the relation of convective activity in the atmosphere with variations in thermocline depth which will also have an impact on weather conditions in the Indonesian region.

Keywords
Indonesian Maritime Continent; Madden Julian Oscillation; Equatorial Thermocline Dynamics

Topic
Coastal and Ocean Dynamics

Link: https://ifory.id/abstract/DXLh4RuBgaUm

Corresponding Author
Siti Nurjanah

Institutions
INDONESIAN UNIVERSITY OF EDUCATION

Abstract
This study aims to design Moodle-based e-learning based on mathematical solving of high school students and to determine the level of feasibility and effectiveness of Moodle-based e-learning based on solving high school students problems. This research is included in research and development with steps, as follows: potential and problem, gathering information, product design, design validation, design improvements, product trials, product revisions, usage trials, product revisions, and the final result. The subjects of the study were Siti Nurjanah. Data collection techniques in the form of literature studies. The results of the study based on the literature study shows that the average score of media experts is 88.67% included in the good category, the average score of material experts is 80.67% included in the sufficient category, while the average score of mathematics learning outcomes is 83% is included in the high category with the results of the t group test in one group design being 11.510. Based on data analysis, it can be concluded that the use of e-learning based on Moodle is based on proper problem solving and is effectively used in high school.

Keywords
Development, E-Learning, Moodle, Mathematical Solving

Topic
Mathematics Education

Link: https://ifory.id/abstract/7RJQ8ByPfNpF

Corresponding Author
Devi Lutfiah

Institutions
a) Master Of Management Study Program, Postgraduate Faculty, Universitas Komputer Indonesia, Bandung, Indonesia, devi.75218008[at]mahasiswa.unikom.ac.id
b) Master Of Management Study Program, Postgraduate Faculty, Universitas Komputer Indonesia, Bandung, Indonesia, dedi[at]unikom.ac.id

Abstract
An Abstract is This study aims to determine the rate of return on assets, debt to equity ratio and earnings per share impact on stock price, either partially or simultaneously on a property company listed on the Indonesia Stock Exchange 2014-2018 period. Data analysis method used is multiple linear regression analysis using analytical tools Eviews version 5.0. Hypothesis testing is done by a statistical test is a simultaneous test (F test) and (t test). Samples are 6 companies with a term of 5 years back. The study was conducted in property companies listed on the Indonesia Stock Exchange. Analysis of the results of the regression performed after the model did not experience symptoms such classical assumptions of normality, multikolinnearitas, autocorrelation, and heteroskedasitas. F test of hypothesis testing results show that the variable Rate of Return of Assets, Debt Ratio and Earnings Per Share Share simultaneously significant effect on stock price. T test of hypothesis testing results showed that the rate of return on assets and the ratio of debt partially not significant effect on Stock Return. While earnings per share is partially significant effect on Stock Return

Keywords
Return on Assets, Debt Ratio, Earnings Per Share Share, Price Shares

Topic
Management

Link: https://ifory.id/abstract/HQXfR6Ycpq2u

Corresponding Author
Muhammad Masrur Islami

Institutions
Center fo Deep Sea Research, Indonesian Institute of Sciences – LIPI
Jl. Y. Syaranamual, Poka, Ambon, Maluku, Indonesia – 97233
* Email: muha067[at]lipi.go.id

Abstract
Tylothais aculeata is one of the gastropod species member of the family Muricidae, order Neogastropoda. This species plays an important role in the marine macrobenthic community. This study aims to determine the variations and relationships of shell dimension i.e. shell length (SL), shell width (SW), shell height (SH) of T. aculeata associated with the hard substrates in Ambon Island, Maluku. Field sampling was conducted in eight locations, in August 2016, with purposive sampling method in typical hard substrates of chosen coastal areas. A total of 751 individuals were found and divided to sixteen size ranges with three peaks of its size group. The highest and the lowest number of individual was found in Dok Talake (DT) and Gudang Arang (GA), respectively. The highest frequency was 96 individuals on range of 28-30 mm, while the lowest one was only 4 individual on range of 42-44 mm. The characteristics of shell dimension relationship of SL-SW and SL-SH were positive allometry; SW-SH was negative allometry; and SL-TW was positive allometric, respectively.

Keywords
Muricid Tylothais aculeata, morphometrics, hard substrates, Ambon Island

Topic
Marine Resources, Conversation and ICZM

Link: https://ifory.id/abstract/dRMYXZpNTf6U