Indonesia Conference Directory

Corresponding Author
Ria Triayomi

Institutions
Primary School Teacher Education, Universitas Katolik Musi Charitas, Jl. Bangau No.60 Palembang 30113, Indonesia

Abstract
This study aims to analyze the arguments of elementary school students on thematic learning material using the Toulmin Argumentation Model. Toulmins Argumentation Model is a data collection instrument to manage the arguments submitted by students. The arguments presented in the form of answers from students who will be grouped into 5 groups, namely Data, Claims, Warrant, Backing, and Disclaimer. The results of students arguments show that 59.8% are categorized as Data, ie students understand the questions given so they can write any information based on knowledge they know, 74.25% are categorized as Claims, ie students are able to express their opinions in written form based on understanding of the questions given, 53% are categorized as Warrant, ie students are able to explain the relationship between Data and Claims, 48.8% are categorized as Backing, namely students are able to answer all questions asked and finally 93% of students are classified as refutation, that is, students are able to refute the questions given by researchers in making false statements. Based on the data it can be concluded that the level of argumentation of elementary school children is still low.

Keywords
analyze argumentation, Primary School, Toulmin Argumentation Model

Topic
Integrated Science Education

Link: https://ifory.id/abstract/3u8rVBaUvYG9

Corresponding Author
Dony Susandi

Institutions
(a) Industrial Engineering, Majalengka University
(b) Mechanical Engineering, Majalengka University
Jl. KH. Abdul Halim No. 103 Majalengka 45418, Indonesia
*dys[at]unma.ac.id

(c) Physics Education, Indonesia University of Education
Jl. Setiabudi 229 Bandung 40154, Indonesia

Abstract
This research aims to develop scientific literacy instruments in the direct current series chapter. The measured aspects of scientific literacy are aspects of content knowledge, procedural knowledge and scientific attitudes. The research method was conducted with a qualitative and empirical analysis approach. Qualitative analysis is carried out by experts/content experts to examine the items. Empirical analysis is used to measure the feasibility of the instrument in the form of validation, reliability, differentiation test and convenience test. The sample used to measure the feasibility of research results is the second semester informatics student at Majalengka University. The results of expert studies/experts on the item shows that it is appropriate, as well as the results of empirical tests showing that the scientific literacy instrument developed in the direct current electricity chapter is feasible to be applied in learning.

Keywords
Instrument development, scientific literacy, direct current electricity

Topic
Physics Education

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

Corresponding Author
Jajang Kusnendar

Institutions
Computer Science Education, Indonesia University Of Education Jl. Setiabudhi Number 229 Bandung, Indonesia

Abstract
This study aims to determine the increase in learning outcomes and measure the effect of multimedia learning simulation games on the explicit instruction method on the effectiveness of learning. The research method used in this study is a mixed-method using a concurrent embedded/nested strategy. Obtained data average value of pretest obtained by 53.85, while the average posttest value of 79.15. From the two average values, it can be obtained a gain value of 0.53 which indicates an increase in student learning outcomes after using multimedia learning assisted with simulation games. Multimedia learning partially has a significant effect on the effectiveness of learning with the acquisition of T value of 2,043. While the Simulation game partially does not have a significant effect on the Effectiveness of Learning with the acquisition of T count of -1.666. Simultaneously learning multimedia and Simulation games have no significant effect on the effectiveness of learning with the acquisition of F count of 2.087. Simultaneously learning multimedia and Simulation games have no significant effect on the effectiveness of learning with the acquisition of F count of 2.087.

Keywords
Explicit Instruction Method, Application of Learning Multimedia, Simulation Games, Learning Outcomes, Learning Effectiveness, Basic Networks.

Topic
Computer Science Education

Link: https://ifory.id/abstract/DxQZrg7tYWyb

Corresponding Author
Jajang Kusnendar

Institutions
a) Computer Science Education, Indonesia University Of education
Jl. DR. Setiabudhi No.229,Bandung, Indonesia
b) Faculty of Mathematics and Science Education

Abstract
This research aims to measure the improvement of students understanding skills after treatment or treatment using Visual, Auditory, and Kinesthetic (VAK) based multimedia models on computer subjects and basic networks. This research discusses several things as the following 1) design and development of a multimedia-based VAK Model; 2) influence of Model-based VAK mutimedia on improving students understanding. 3) Multimedia eligibility by implementing VAK learning models in computer and basic network subjects. The method of research used is quantitative with the stage of multimedia development using water-fall method. The research Data is taken from the interview to the teacher to the teaching subjects as the object of this study. From this study obtained results: 1) This stage of multimedia development from the design level, designing, validation of ex-perts, to testing and testing, conducted tests by me-dia experts and material experts using question-naires based Learning Object Review Instrument (LORI. This multimedia feasibility is rated very decent with the assessment of media experts having an average of 85.40% and expert assessment of material has an average of 84.75,%

Keywords
Visual, Auditory, Kinesthetic (VAK), Multimedia Education, VAK, Visual, Auditory, Kinesthetic.

Topic
Computer Science Education

Link: https://ifory.id/abstract/pTNvABr6fQEz

Corresponding Author
Syifa Fauziyah Nurul Islam

Institutions
a,b) Department of Computer Science, Padjadjaran University, Sumedang 45363, Indonesia
*syifafauziyah899[at]gmail.com

Abstract
Cardiotocography is an important process in pregnancy as fetal monitoring. It monitors the babys heart rate in a healthy condition or not. Apart from that, this can also measure whether the movements carried out by the baby in the womb are normal or not. This study extracted the recording data by cardiotocographs. The attributes of fetal data that have been recorded amount to 22. They were used as the indicators in determining the conditions of the fetus whether under normal circumstances, suspect or pathologic. The prediction of the fetus condition was based on the Random Forest method. Also, the method was compared with the Naïve Bayes and Decision Tree methods. The accuracy of the Random Forest method reached 95.12%. It was higher compared to using other methods.

Keywords
Cardiotocography; Radom Forest; Naive bayes; Decision Tree

Topic
Computer Science

Link: https://ifory.id/abstract/EVNn3cdWbJtL

Corresponding Author
Ahmad Aminudin

Institutions
Departemen Fisika, Universitas Pendidikan Indonesia
Jl. Dr.Setiabudi No.229 Bandung, Jawa Barat Indonesia

Abstract
Peristaltic pump RPM counter using rotary encoder has been designed. Peristaltic pump is a pump which using flexible tube as a tool for transporting fluid due to the pressure roller on the rotor. The rate of fluid flow in the flexible tube is affected by the angular speed of the motor (ω) in RPM. There are many available peristaltic pumps with a various selection in the market but rarely equipped with RPM measurement system. In this research, the peristaltic pump used three rollers and a flexible tube with the inner radius (rd) 0.21cm. The two main part on the rotary encoder are encoder disk with an index of 36 and a sensor optocoupler chip. Output rotary encoder signal is processed in such a way on the microcontroller into the value of angular speed (ω) in RPM and the linear velocity (v) in cm / min. Then, the results of this calculation is displayed on the LCD. The operating voltage range of peristaltic pumps which can be used are 1.5 to 9.0 V. At this voltage range, the peristaltic pump produce angular speed in a range of 3.76-33.83 RPM. RPM counter system of the peristaltic pump which has been made could measure RPM well with a percentage of the average accuracy percentage of 99.51% and average error percentage of 0.49% of the value of RPM results of manual calculations. The volume flow rate which has been calculated was 8.9407 – 65.0959 ml/min and the volume flow rate which has been measured was 37.1518 – 66.5199 ml/min.

Keywords
Performance Test, Peristaltic Pump, Flow Measurement, Encoder

Topic
Physics

Link: https://ifory.id/abstract/B8Avr3TY9en4

Corresponding Author
Nova Kurnia

Institutions
a) Department of Chemistry Education of IKIP Mataram, Jalan Pemuda No 59A, Mataram 83125, Indonesia.
*novakimia88[at]yahoo.com
b)Science Education Program, School of Postgraduate Studies, Indonesia University of Education, Jalan Dr.Setiabudhi No 229, Bandung 40154, Indonesia.
c) Department of Food Science and Technology of IPB University, Jalan Raya Dramaga, Bogor 16002, Indonesia

Abstract
Food was likely to be contaminated by hazards during processing steps. On the other side, food safety was the main prerequisite for consumption. Nowadays, the hazard analysis critical control point (HACCP) has been implemented as food safety assurance system. This research aimed to know the students ability in reviewing traditional food HACCP through project-based learning in food chemistry course. This research employed a descriptive method as research design. Subjects of the research were 16 students eight semester of chemistry education program at one of the colleges in Mataram City. To collect data, the instrument of performance assessment rubrics and questionnaire were used. To conclude, the data indicated that students were able to review traditional food HACCP in terms of raw material and processing step through project-based learning. They were very enthusiastic toward the project activities due to it was related to their daily culture.

Keywords
traditional food, HACCP, project-based learning, food chemistry

Topic
Chemistry Education

Link: https://ifory.id/abstract/XJ63YBacteDd

Corresponding Author
Shofiyyah Nadhiroh

Institutions
*Faculty of Mathematics and Natural Science, Padjadjaran University
Jalan Raya Bandung Sumedang KM.21, Jawa Barat 45363, Indonesia

Abstract
Cancer is a dangerous disease that should not be underestimated. The early stages of this disease are often asymptomatic. Early detection of cancer is an important examination so that the disease does not develop into a serious and dangerous disease. This study detected the presence of cancer through five predictors. This study classified the diagnosis results based on five indicators namely radius, texture, perimeter, area, and smoothness. By using these five indicators, the detection was carried out through a classification mechanism using the boosting method. The result had obtained an accuracy of 93.67%. The accuracy was higher than other classification methods such as Bayesian Networks and Multilayer Perceptron. Both of them only obtained an accuracy of 89.63%, and 92.79%, respectively. It showed that the ensemble method mechanism of boosting had proven to be more effective in classifying the presence or absence of breast cancer

Keywords
Breast cancer; Classification; Boosting; Bayesian Networks; Multilayer Perceptron

Topic
Computer Science

Link: https://ifory.id/abstract/TXYnCzNwg3ZP

Corresponding Author
Ricky Firmansyah

Institutions
a) AMIK BSI Bandung
Jl. Sekolah Internasional 1-2, Bandung 40282, Indonesia
*rickyapr[at]yahoo.co.id
b) AMIK BSI Bandung
Jl. Sekolah Internasional 1-2, Bandung 40282, Indonesia
masnaing[at]gmail.com
c) STIE Wikara
Jl. Jend. Ahmad Yani No.21 Purwakarta
dindaamalia.s326nus[at]yahoo.com

Abstract
The reading ability of 9-14 years children in Indonesia ranks 40th out of 40 countries studied by the Program for International Student Assessment (PISA). Reading interest must be accustomed regularly at least for yourself, efforts to increase the reading interest need to be fostered from an early age. Gerakan Literasi Sekolah (GLS) was launched to increase the reading interest for school residents, especially students. However, the implementation of GLS in schools is still not utilizing information technology. This research focuses on how to design a web-based literacy information system to increase students reading interest in junior high schools. This web-based literacy information system is designed with Unified Modeling Language (UML) architecture diagrams, implemented using the PHP language and MySQL database system. The system was tested using Black box Testing and a questionnaire for public testing. The results of this study are the literacy information system has been developed that is used to increase student reading interest, where 82.91% of respondents agreed that this system provides convenience in facilitating work and uploading book reviews made by users.

Keywords
internet; literacy; information system; reading interest; website

Topic
Computer Science

Link: https://ifory.id/abstract/7ewNfPtk4RDB

Corresponding Author
Paquita Putri Ramadhani

Institutions
Department of Computer Science, Padjadjaran
University, Sumedang 45363,Indonesia

Abstract
Breast cancer is a type of cancer that has a high mortality rate. Cancer is caused by a lump from a collection of cells that grows and attacks the surrounding tissue. Most breast lumps are benign, but the benign breast lumps can increase the risk of developing breast cancer. It is important for everyone to check for a lump in the breast. It is done to find out whether the lump is potentially cancer or not. Early detection can provide better handling. The diagnosis of breast cancer by a doctor is done by analyzing several factors. To help the doctor in diagnosing the data efficiently, this study implemented machine learning. The diagnosis was based on the features of digital image computation in the process of fine-needle aspiration (FNA) of a breast mass. The data came from 569 patients. The study used the neural networks classification method with multilayer perceptron algorithms. The results were obtained that the use of neural networks gave higher accuracy if it compared it in the ZeroR method. Their accuracies were 95.96%, and 62.74%, respectively.

Keywords
Breast cancer, Neural Network Classification, ZeroR dan Multilayer Perceptron

Topic
Computer Science

Link: https://ifory.id/abstract/BPRDZQU7E4hj

Corresponding Author
Phitsa Mauliana

Institutions
a) AMIK BSI BANDUNG
Jl. Sekolah Internasional 1-2, Bandung 40282, Indonesia
*phitsa.phu[at]gmail.com
b) AMIK BSI BANDUNG
Jl. Sekolah Internasional 1-2, Bandung 40282, Indonesia
rickyapr[at]yahoo.co.id
b) STIE Wikara
Jl. Jend. Ahmad Yani No.21 Purwakarta 41114, Indonesia
surtikadewiai[at]gmail.com

Abstract
Today in Indonesia there are still many orphanages which have many financial, facilities, and affection limitations considering the orphanage is a place where children are abandoned by their parents. Donations are needed to support the growing number of foster children such as food, foster education, and electricity/water fees and so on. One funds source for orphanages in various countries comes from several online donation sites on the internet. This research proposes the "e-Panti" web-based orphanage information system as a means of raising donations. Through this system, benefactors will be able to see profiles of orphanages, lists of orphans, orphanage activities, and how to make donations. This system was developed by the waterfall method which was designed using the Unified Modeling Language (UML) architecture diagram and implemented into the PHP web programming languages using MySQL database system. The system is tested using Black box testing to ensure system functionality and user acceptance tests using questionnaires. The results of this study are the development of the "e-Panti" web-based orphanage information system with a user acceptance rate of 77.50% based on the the questionnaire results.

Keywords
donation; information system; internet; orphanage; website

Topic
Computer Science

Link: https://ifory.id/abstract/kMG48VwtWjdQ

Corresponding Author
Wita Ratna Puspita

Institutions
Mathematics Educations, Universitas Pendidikan Indonesia, Jl. DR. Setiabudi No. 229, Isola, Sukasari, Bandung, 40154, Indonesia
*witaratna[at]upi.edu , **frenafardillah[at]upi.edu

Abstract
Abstract. The purpose of this research is to verified the effectiveness of teaching mathematics by applying learning cycle 5E and 7E model; and to find out whether those models to be more effective in terms of self-efficacy of 8th grade junior high school students in studying the plane. The research population is 8th grade students of junior high school in Yogyakarta which is derived from a high and medium-level school. The test statistic used is a two-way anova, independent sample t test, and the N-gain formula at the significance level of 5%. It shows that: 1) there is no distinction of self-efficacy between students applied LC 5E and LC 7E models; 2) self-efficacy of students whom applied LC 5E is not higher than LC 7E models in high or medium-level school; and 3) there is no interaction between learning cycle models with school level in learning the plane.

Keywords
Learning Cycle; Self-efficacy

Topic
Mathematics Education

Link: https://ifory.id/abstract/nBcM2bJVKjEw

Corresponding Author
Mulyati Mulyati

Institutions
Laboratory of Animal Physiology, Departement of tropical Biology, Faculty of Biology, Universitas Gadjah Mada, Sleman, D. I. Yogyakarta, Indonesia

Abstract
Community diet patterns that tend to be unhealthy with the consumption of fast food can cause metabolic disorders or metabolic syndromes such as diabetes mellitus. Diabetes mellitus is characterized by a chronic hyperglycemia condition that is an increase in blood glucose levels and keto-acidosis. Therapy for diabetes mellitus using synthetic chemical drugs has dangerous side effects. The otherhand there are same natural substance from plants or animals. The aims of this study examines the effect of microalgae that is suspected of being potential as an alternative medicine for the prevention or cure of diabetes mellitus. The purpose of this study was to determine the effect of administration of Arthrospira maxima and Chlorella vulgaris on the erythrocyte and platelet profiles of Wistar rats (Rattus norvegicus Berkenhout, 1769) hyperglycemia on the induction of DMT2. Twenty Wistar male rats were divided into 5 groups consisting of three control groups namely healthy controls, hyperglycemia, and drugs, and 2 treatment groups namely A. maxima and C. vulgaris. DMT2 induction uses a high carbohydrate diet and a single dose streptozotocin. Erythrocyte and platelet profiles were measured at H0, H15, and H30. Body weight and blood glucose levels are measured every 10 days. Data were analyzed using One-Way ANOVA. The erythrocyte profile was low in the control hyperglycemia rat after DM induction of H15. Erythrocyte profiles in hyperglycemia rat with this microalgae treatment, not significantly increased (p>0.05). Platelet profile in both the hyperglycemia and treatment groups was not significantly affected (p>0.05). Erythrocyte and platelet profiles in hyperglycemic rats have decreased and returned to better conditions after being given A. maxima and C. vulgaris.

Keywords
Arthrospira maxima; Chlorella vulgaris;Erithrocyte profile; Thrombocyte profile; Hyperglycemia.

Topic
Basic Health Science

Link: https://ifory.id/abstract/EVq6GFrMwAnt

Corresponding Author
Siti Khoiruli Ummah

Institutions
University of Muhammadiyah Malang

Abstract
Abstract— Blended Learning using Canvas became familiar method in 2019 because of the easiest access and the centralized system management in university. This paper aimed to describe the findings of case study focusing on the engineering students- participation and the creativity in implementation of flipped classroom method emphasizing group discussion and students- answer sheets. The findings were optimally reached from online group discussion, paper-based test, and online test using qualitative approach. The findings were surprised because the engineering students through flipped classroom were more active than in the classroom. There were more comment in group discussion and the answer from discussions- topic were vary. The discussion was more interactive because every students has different questions that must be answered by other students. The engineering graduated students could answered fluently and vary. The students- answer on paper-based test and online test were vary and all the questions was answered correctly. It could be said that flipped classroom optimally implemented so that change the students- participation and creativity significantly.

Keywords
Blended learning; Canvas; engineering students; flipped classroom; online group discussion; students- participations; creativity; mathematics engineering

Topic
Mathematics Education

Link: https://ifory.id/abstract/k3mAxzCa6GEr

Corresponding Author
Yaya Wihardi

Institutions
Universitas Pendidikan Indonesia
University of Alabama at Birmingham

Abstract
Facial action point detection is a very important task in computer vision due to various application such as in facial expression recognition, facial motion capture, and another human face analysis. This research aimed to propose a deep learning approach to identify and localize facial action points in sequences of images by using convolutional neural network. The result provide an evidence that the model can detect the points with 87% of accuracy.

Keywords
Facial Action Point, CNN, Deep Learning

Topic
Computer Science

Link: https://ifory.id/abstract/bBPm8rhytnAD

Corresponding Author
wahyudin wahyudin

Institutions
UPI.

Abstract
This research aims to determine how the application of demonstration teaching method based on multimedia animation can improve learning outcomes on subjects Computer and Basic Network at Vocational High School 11 Bandung. The aims of study are 1) Analyzing the application of Demonstration teaching method based on multimedia animation can improve learning outcomes on the subjects of Computer and Basic Network, 2) Analyzing the influence of Demonstration teaching methods implementation based on multimedia animation can improve learning outcomes on subjects Computer and Basic Network, 3) Analyzing the students response for application of Demonstration teaching method based on multimedia animation can improve learning outcomes on the subjects of Computer and Basic Network. The method used in this research is quasi experimental method with non equivalent control group design that uses 2 classes as research object. The number of sample used is 70 people taken from the students of class X MM 1 as the experiment class and X MM 2 as the control class. Based on the results of the study there are improvement from the control and experimental class as well. The improvement is categorized in low category. This is proved by the results of a gain test that shows the value of 0.13 while in the experimental class as much as 0.27. It shows that the implementation of Demonstration teaching methods based on multimedia animation can improve learning outcomes in subjects Computers and Basic Network higher by 27% compared to without using multimedia that is equal to 13%. In addition, this multimedia also has a high influence on student interest in learning. While the results of the assessment in the form of student questionnaires to the multimedia showed in the category very well by obtaining the average value of 83.73%.

Keywords
Demonstration, Multimedia, Animation, Learning Outcome

Topic
Computer Science Education

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

Corresponding Author
Arief MUTTAQIIN

Institutions
a) Department of Biology, Universitas Negeri Padang, Jl. Prof. Dr. Hamka, Air Tawar Padang 25131, Indonesia
b) Department of Science Education, Universitas Negeri Padang, Jl. Prof. Dr. Hamka, Air Tawar Padang 25131, Indonesia
*muttaqiin.a[at]fmipa.unp.ac.id

Abstract
Research in education is based primarily on the problems that have found in the field. The habit of memorizing the concept make the students- thinking skill is not developed. This research aimed to enhance the students‘ higher-order thinking skills through the Concept-Based Learning and Drill Method in The Course of Biology Learning. The concept-based learning leads students to know the basic concept and avoiding misconceptions, while the drill method is unique due to its characteristics, which make students think higher than before. Therefore, the combination of concept-based learning and drill method were applied in the course of Biology Learning Methodology as an attempt to obtain the positive effect of the strategy. A set of higher-order thinking skills questions were given at the end of the course. The implementation of concept-based learning and drill method in this course made students obtained a high score which the average classroom score was 77.87, classified as B+. Implementing the concept-based learning and drill method can be used as an alternative to help students in improving their higher-order thinking skills in Biology Learning Methodology course.

Keywords
concept, drill, higher-order thinking

Topic
Biology Education

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

Corresponding Author
Intan Nurma Yulita

Institutions
Padjadjaran University

Abstract
Autism spectrum disorder (ASD) is a developmental disorder that affects communication and behavior. ASD can be seen in children since toddlers. The knowing toddler has ASD is very important. It can anticipate as early as possible to minimize the worsening of ASD. It can be done by early detection. The mechanism is recognizing patterns form existing data to build detection models. The system can be built using machine learning mechanism. It has been widely used to help diagnose medical data. Support Vector Machine (SVM) is a method in machine learning. This study implemented it in the data which came from 1054 ASD patients. The study also compared the method to other machine learning methods. The results were obtained that SVM accuracy is higher than others. The SVM obtained an accuracy of 99.90%. It shows that SVM promising tool for the diagnosis of ASD.

Keywords
Autism Spectrum disorder, Machine Learning, Support Vector Machine, Toddler

Topic
Computer Science

Link: https://ifory.id/abstract/zer9FnxcX6gp

Corresponding Author
Nanang Hunaifi

Institutions
a) AMIK BSI BANDUNG
Jl. Sekolah Internasional 1-2, Bandung 40282, Indonesia
*masnaing[at]gmail.com
b) AMIK BSI Tasikmalaya
Jl. Tanuwijaya No.4, Tasikmalaya 46113, Indonesia
agung.abl[at]bsi.ac.id
a) AMIK BSI BANDUNG
Jl. Sekolah Internasional 1-2, Bandung 40282, Indonesia
maxsiary[at]gmail.com

Abstract
Population registration management is the government responsibility, so that each resident is registered administratively in accordance with the Act. However, to make a certificate, the people may not be directly served. The issue of extortion and complicated processes makes the people feel the data management is a complicated and make people often ignore it, this is a loss for all parties. One of the negative impacts of not recording population data is that there is a dual identity of the population that can be misused; unknown newcomers are often used for terrorism activities, obstruction of other arrangements that require a certificate of population. Currently the data processing and archiving process is still done manually. This research aims to develop a document archiving information system and online mail application at the sub-district level. This system was designed with the waterfall method and Unified Modeling Language (UML) modeling, and then implemented using the PHP MySQL web programming. Black box is used as a functional testing of information systems. The results of this study is the document archiving information systems and online mail requests have been developed with positive responses from users by 84.50% based on the user acceptance test level questionnaire.

Keywords
egoverment; information system; internet; population; website

Topic
Computer Science

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

Corresponding Author
Asep Wahyudin

Institutions
Department of Computer Science, Universitas Pendidikan Indonesia

Abstract
Aligning systems and information technology with organizational business strategies requires accurate strategic planning that can provide knowledge about the strengths that must be utilized, the shortcomings that must be minimized, opportunities that must be maximized, and what obstacles are faced by an organization. Formulating strategic planning is not easy, complex and requires a long process of time. Efforts can be made to avoid mistakes in the formulation of strategic planning and failure in its implementation is to involve all elements in the organization collaboratively. This research focuses on the process of aligning business strategies and information systems strategies carried out by promoting collaborative patterns aided by computer support systems for strategic planning as virtual media. Share vision, share viewpoints, share knowledge, active partnerships, active communication, and partnership approaches are the basic collaborative patterns of the system. The focus group discussion mechanism is used as a method in the system and is realized into work stages, namely stakeholder initiation and teamwork organized, data gathering, knowledge generated and review, and vision conference. The results of the research are useful as a virtual collaborative model in the information system strategic planning process, can be further developed involving intelligence agents, is a future development of this research.

Keywords
computer support strategic planning, collaborative, business strategy and information systems alignment, strategic information system planning

Topic
Computer Science

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

Corresponding Author
Fitri Indra Indikawati

Institutions
Universitas Ahmad Dahlan

Abstract
Stress detection is an interesting topic because of its huge impact on human health, both mentally and physically. Physiological changes on the human body can be observed and used to recognize stress. Various approaches utilize a different kind of data to detect physiological changes, i.e. visual data, audio data, interview result, textual data, or sensor data. Wearable sensors for collecting physiological data are becoming more prominent in recent years due to their functionality and non-intrusive nature. By utilizing data from wearable sensors, we have developed a personalized stress detection system. Our system performs classification on stress level based on multimodal data from Empatica E4 wearable sensor. By evaluating the performance of the system, we demonstrate that our system can perform personalized stress detection using a real multimodal dataset from wearable sensor.

Keywords
stress detection, wearable sensor, classification

Topic
Computer Science

Link: https://ifory.id/abstract/k3ZABvqU9Kpr

Corresponding Author
Tia Purniati

Institutions
1Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

2SMP Laboratorium Percontohan UPI, Jl. Dr. Setiabudi No. 229, Bandung 40154, Indonesia

3Program Studi Matematika, UNISBA, Jl. Tamansari No. 1, Bandung

Abstract
This study aims to analyze the instruments and abilities of students on material number patterns using the Rasch model. The instrument analyzed was in the form of essays and consisted of eight questions. The instrument was tested on 29 8th grade junior high school students consisting of 15 female students and 14 male students. Instrument analysis and student ability using the Rasch model based on instrument difficulty (item measure), student ability level (person measure), Wright map (person-item map), and instrument analysis. The results showed that there was one difficult question, six medium questions, and one easy question. In addition, there were five students with high abilities, sixteen students with medium abilities, and eight students with low abilities. The level of difficulty of the diversity instruments is not far adrift, but the level of student ability varies. The average level of student ability is above the average level of difficulty of the Instrument. The interaction between students and instruments as a whole is bad. The consistency of answers from students is weak, but the quality of the instrument is sufficient

Keywords
number patterns, Rasch model

Topic
Mathematics Education

Link: https://ifory.id/abstract/ZcQ3rYXawD78

Corresponding Author
Ardian Novianto

Institutions
Universitas Pembangunan Nasional Veteran Yogyakarta

Abstract
Abstract. Jambakan is a village in Bayat District, Klaten Regency, Central Java Province, Indonesia. Even though it is located ±30 km from the sea, brackish water is found in its aquifers. In light of this, scientific discussion on where this water comes from is deemed necessary. Based on the groundwater quality analysis at the local wells, brackishwater was detected in shallow aquifers at the depths of 5-8 m. The geoelectrical method using the Schlumberger and dipole-dipole electrode configurations screened for any aquifers vertically and horizontally. The results showed that aquifers were distributed discontinuously, for which they were interpreted as fan alluvial deposits in shallow seas or molasses accumulations on the land. The interpretation also revealed that the brackishwater resulted from contacts with minerals in seawater sediments that composed the aquifers in this village.

Keywords
Schlumberger,dipole-dipole,electrode

Topic
Geophysics,Geomatics and Geochemistry

Link: https://ifory.id/abstract/68cGXzxy2JPQ

Corresponding Author
Enrico Cleonardo Kiputra Budiman

Institutions
(a) Penulis
(b) Dosen Pembimbing Utama Tugas Akhir, Jurusan Arsitektur, Universitas Trisakti
֗(c) Dosen Pembimbing Pendamping Tugas Akhir, Jurusan Arsitektur, Universitas Trisakti

Abstract
Desain ruang baca pada perpustakaan yang kaku dan monoton seringkali membuat pengguna merasa tidak nyaman karena suasana yang terkesan membosankan. Kesan yang timbul dari suasana ruang baca berpengaruh terhadap psikologis dan kondisi fisik pengguna. Pada dasarnya manusia memiliki kecenderungan untuk selalu berhubungan dengan alam yang dapat memberi banyak dampak positif bagi psikologis maupun fisik manusia yang disebut sebagai biophilia. Hal ini menyebabkan munculnya pendekatan biophilic design. Terdapat 6 komponen biophilic design untuk menciptakan desain dengan sentuhan alam. Penerapan 6 komponen biophilic design pada ruang baca diharapkan dapat membantu menciptakan healing environment, yang berguna untuk meningkatkan minat baca dan proses penyembuhan psikologis pada pengguna

Keywords
biophilic design, ruang baca, perpustakaan, alam

Topic
Penerapan Konsep Desain pada Rancangan Lingkungan Terbangun

Link: https://ifory.id/abstract/ZVhb6F7wAdqG

Corresponding Author
Hayudian Pramesiwara

Institutions
a),b),c) Jurusan Arsitektur, Fakultas Teknik Sipil dan Perencanaan, Universitas Trisakti, Jakarta

Abstract
Rumah tradisional Betawi merupakan salah satu rumah tradisional yang terdapat di Indonesia. Bahkan, di masa sekarang keberadaan rumah tradisional Betawi semakin berkurang jumlahnya dikarenakan munculnya aliran arsitektur yang lebih modern yang tidak mengindahkan arsitektur tradisional. Penelitian ini bertujuan untuk mengetahui bentuk pola ruang dalam pada rumah tradisional Betawi sehingga dapat menjadi salah satu acuan dalam pelestarian rumah tradisional Betawi. Metoda yang digunakan adalah komparatif deskriptif dengan cara memaparkan hasil perbandingan bentuk-bentuk rumah tradisional Betawi berdasarkan studi literatur. Aspek yang dianalisis meliputi:organisasi ruang, bentuk, jenis, dan zonasi ruang. Hasil studi menunjukkan bahwa seluruh bentuk rumah Betawi yang distudi memiliki bentuk dasar ruang segi empat dengan organisasi ruang yang berbentuk grid dengan ukuran yang disesuaikan dengan fungsi ruang didalamnya.

Keywords
Pola Ruang Dalam, Rumah Tradisional, Betawi

Topic
Evaluasi Kualitas Komponen Lingkungan Terbangun

Link: https://ifory.id/abstract/y9uXKEq3bwQd

Corresponding Author
Tri Rini Kusparwanti

Institutions
a) Agriculture Production Department, Politeknik Negeri Jember
*tri_rini[at]polije.ac.id

Abstract
Legume litter can be used as compost with the help of bio-activator Trichoderma sp. as a decomposing microorganism. Legume compost can function as a source of organic fertilizer for plants and can reduce the use of inorganic fertilizers.This study aims to determine the best dose combination using inorganic fertilizer balanced with legume compost fertilizer. The study used non factorial randomized block design with 5 levels of treatment that were control, legume compost 20 ton/ha + 100% inorganic fertilizer, legume compost 30 ton/ha + 75% inorganic fertilizer, legume compost 40 ton/ha + 50% inorganic fertilizer, and legume compost 50 ton/ha + 25% inorganic fertilizer. Based on Anova test showed that the application of various combinations of inorganic fertilizer (Urea, SP-36, KCl) and legume compost had significant effect on the age of 2 WAP, 4 WAP and 5 WAP on the parameters of plant height, significant to the parameters cob weight, and had no significant effect on the sweetness level of sweet corn.

Keywords
Legume; Trichoderma; Fertilizer

Topic
Organic Agriculture

Link: https://ifory.id/abstract/nUGxX3Yj9cWg

Corresponding Author
Muhammad Ardiyansyah

Institutions
Departement of Agriculture Technology, Politeknik Negeri Jember

Abstract
Indonesia is one of the countries producing subtropical plants and fruits. The application of postharvest handling technology which is less reliable will change the quality of fruits. Some equipments is therefore required to know ripeness condition of fruits. Recently, many technologies can directly be used to monitor deterioration of food ingredients by using films or papers that contains colorimetric indicators called smart packaging. This research aims at detecting the freshness of climacteric fruits such as banana with the use of brazilien extracts as a colorimetric indicator. Measurements were conducted to determine the influence of pH variations on the change in color of brazilien extract, the stability of the color of the film, respiration rate and vitamin C of bananas. The results of this study indicate that the color stability of the film indicator containing sappan wood extract stored in the exicator for 6 days shows a color change from yellow to orange. Furthermore, from the observation result of banana deterioration for 6 days, it is obtained vitamin C content of 92.65 + 2.1 mg / 100 g, an increase in pH 5.1, an increase in texture profile is 10.1 mm / 10s, an increase in respiration rate is CO2 levels. It also indicates that banana deterioration is followed by color change of indicator film from yellow to dark red.

Keywords
Climateric Fruits, Smart Packaging, Sappan wood Extracts

Topic
Food Safety

Link: https://ifory.id/abstract/AzkVRCUWD8eq

Corresponding Author
Oktanita Jaya Anggraeni

Institutions
(a) Department of Agribusiness Management
Politeknik Negeri Jember
Jember 68101
Indonesia
Email : oktanita[at]polije.ac.id

Abstract
Jember batik has its own characteristics than any other batik. The charm of Jember batik is its color harmony which differentiates Jember batik from the other batik. Consumer-s purchase decision in purchasing a product and the production result of a company are inseparable. Consumer-s purchase decision is the decision in purchasing the most desirable brand than any other available alternatives, however there are two factors between the purchase intention and purchase decision. The first factor is other person-s attitude and the second is situational factor. This study aims to determine the influence of batik pattern and quality on consumer preference to increase the purchase decision of Jember batik product. This study used the Chi Square analysis method. The result showed that the value of Asymp. Sig. (2-sided) in the Pearson test of Chi Square was 0,001 and 0,000. Those were less than 0,05 which means batik pattern and quality influence the consumer-s preference and are able to increase the batik product purchase decision. It can be used as the basis to determine the strategy of Jember batik product development.

Keywords
Preference, Decisions, Purchase

Topic
Agroindustry and Agribusiness

Link: https://ifory.id/abstract/82g7bB6krcGT

Corresponding Author
Sekar Utami Putri

Institutions
Politeknik Negeri Jember

Abstract
One of horticulture commodity is tomato. The tomato production every years is fluctuating. Because of many problem on tomato cultivation. One of problem is pest controlling which use synthetic pesticide to pest control. One of effort to minimize synthetic pesticide is application organic pesticide from nature compose (in around us). This research aim to review secondary metabolite of weed to tomato pest control. This research randomized block design with fourth threatmen are Ageratum conyzoides, Cyperus rotundus, Cyperus kyllinga, Chromolaema odorata. The forth weed is cyperaceae group and broadleaves. The result showed that potential secundary metabolite whose not saponin to fourth organic pesticide

Keywords
Cyperus rotundus, Ageratum conzydii, Kirinyu, Cyperus kyllinga.

Topic
Organic Agriculture

Link: https://ifory.id/abstract/aWHPACnQ9vrc

Corresponding Author
Erlynda Kasim

Institutions
STIE EKUITAS
BANDUNG

Abstract
Abstract: The purpose of this study is to analyze the influence of earnings management, independent commissioners, audit committees on the corporate tax aggressiveness. This research was conducted in mining companies listed on the Indonesia Stock Exchange in 2015-2017. The results of panel data regression analysis show that earnings management, independent commissioners and audit committees have a significant influence on the level of corporate tax aggressiveness.

Keywords
earnings management, independent commissioners, audit committees, tax aggressiveness

Topic
Accounting

Link: https://ifory.id/abstract/pHATcJuR7CBr