Indonesia Conference Directory

Corresponding Author
Muhammad Ridwan Andi Purnomo

Institutions
Department of Industrial Engineering, Faculty of Industrial Technology,
Universitas Islam Indonesia, INDONESIA

Abstract
Yogyakarta, one of the city in Indonesia, has the most active volcano in Indonesia, namely Mount Merapi. Volcanic activity of Merapi often results in earthquakes, either weak or strong earthquakes. Those earthquakes sometime are dangerous to the community; therefore early warning system for earthquakes are very necessary. This paper presents development of earthquake sensor based on internet of things (IoT) system that equipped with a well known data mining techniques for prediction called Bayesian network. A sequential data about earthquakes occurrence has been used to predict earthquake occurrence in the future. A cloud database is used to store real time earthquake occurrence data and an application for mobile device is developed to predict occurrence of earthquake and visualise the data. The mobile device application will trigger an alarm for the user if earthquakes are predicted frequently

Keywords
Bayesian network, earthquake sensor, prediction, IoT

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/8AuY3RGHfCrt

Corresponding Author
Triwiyanto Triwiyanto

Institutions
(1) Department of Electromedical Engineering,
POLTEKKES KEMENKES Surabaya, Indonesia
(2) Department of Electrical Engineering,
Universitas Muhammadiyah Yogyakarta, Indonesia

Abstract
The essential problem in the estimation of a human joint angle based on electromyography (EMG) signal is the non-linearity characteristic of the EMG feature. The non-linearity of the EMG features influence the performance of the estimation. The objective of this paper is to develop an extended Kalman filter model to predict the elbow joint angle based on the EMG signal. The EMG signal is recorded from biceps muscle using disposible electrodes (Ag/AgCl). The recording of the EMG signal was conducted when the subject was instructed to perform a flexion and extension motion. In this study, a periodic and random motion were chosen to examine the proposed method. The EMG signal was extracted using sign slope feature (SSC) to obtain the information which is related to the posisition of the elbow. The response of the features was ploted to get the function of observation state. The extended Kalman filter (EKF) was chosen to linearize and to estimate the elbow joint angle based on EMG features. The performance improvement from KF to EKF based method is 12.81% and 9.65% for periodic and random motion, respectively. We have demonstrated the effectiveness of the proposed method to improve the performance of the estimation, further it can be implemented to an assistive exoskeleton for elderly people or stroke patient for better live

Keywords
Extended Kalman filter, elbow joint angle estimation, EMG, features non- linear.

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/9n4WcKB3v2jA

Corresponding Author
yoni astuti ch mardi

Institutions
Faculty of Medical and Health Sciences of Universitas Muhammadiyah Yogyakarta

Abstract
The increasing number of elderly on these recent days demands an improved quality of health for the elderly. Independence of the elderly is important In order to be happy and not to be a burden on their families. Health monitoring continuously is an effort to prevent disruption on the health conditions of the elderly. The health status of elderly people is important to know to follow up on prevention programs for the emergence of certain diseases in the elderly. This study aims to look for potential health problems for elderly people in Gamping Sleman. The method of this research was cross sectional analysis using secondary data. Sample collection is consecutive subjects. Subjects were 58 people with a mean age of men (68.30 ± 7.75) years while women were 66.96 ± 6.55 years. The data was analyzed using the bivariate correlation test with CI 99%. The results of the analysis showed that the average body mass index with an average abdominal circumference was positively correlated (r = 0.66; p: 0.000), BMI category with an abdominal circumference (r = 0.83; p: 0.000) but did not correlate with Systole pressure (r = -0.009; p = 0.95) diastole (r = 0.093; p = 0.487), age (-0.05; p = 0.73), and gender (r = -0.146; p = 274). The conclusion of this study is that the potential health problems among the elderly is the risk of high BMI due to the larger abdominal circumference.

Keywords
Elderly, BMI, abdominal circumference

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/WXT2k4KetPmz

Corresponding Author
Ramadoni Syahputra

Institutions
(a) Department of Electrical Engineering, Universitas Muhammadiyah Yogyakarta, Indonesia, *Email: ramadoni[at]umy.ac.id
(b) Department of Electrical Engineering and Information Technology, Universitas Gadjah Mada, Indonesia

Abstract
This paper presents a study of hybrid solar photovoltaic and micro-hydro system for rural areas of Yogyakarta Special Region. The Yogyakarta region is very potential in developing renewable energy for the supply of electricity, especially in rural areas. Efforts to develop renewable energy is in line with the Indonesian government program that targets until 2025, in Indonesia the electrical system is supplied by power plants by 25% comes from renewable energy. The types of renewable energy that have the greatest potential in Yogyakarta are solar photovoltaic and micro-scale hydro energies. In this study, the potential of micro-hydro power plants was revealed by measuring the irrigation water flow, head, and the output power produced. The potential of solar photovoltaic energy is obtained from solar radiation data for the Yogyakarta region. Data on the potential of the two energy sources is then used to design a hybrid power plant for the needs of a villages electricity supply. To get the appropriate generating capacity, a survey of the villages electrical energy needs is carried out. The results of the design of the generating capacity, the required investment costs, the selling price of electricity, and the payback period are discussed in this paper.

Keywords
Solar PV, micro-hydro, renewable energy, rural area

Topic
International Symposium of Engineering, Technology, and Health Sciences

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

Corresponding Author
Ramadoni Syahputra

Institutions
(a) Department of Electrical Engineering, Universitas Muhammadiyah Yogyakarta, Indonesia
(b) Department of Electrical Engineering and Information Technology, Universitas Gadjah Mada, Indonesia

Abstract
This paper presents a study of sugarcane waste for biomass energy in the supply of electrical energy. Biomass is a renewable energy source derived from organic matter such as wood and sugarcane waste. As much as 30 percent of sugar cane raw material for sugar production is in the form of sugar cane waste. This sugarcane waste is very potential to be developed as a biomass energy raw material. In this study, an analysis of the potential of sugarcane waste at the Madukismo Yogyakarta sugar mill was carried out. Observations made to record how much cane waste is produced by sugar factory every day of the year. Furthermore, these data are analyzed using Homer Energy software to obtain the potential of electrical energy produced during a year. Analysis was also carried out on the amount of electricity demand in the sugar factory. This is done to calculate how much the contribution of electrical energy from biomass as a provider of electricity supply. The results of the analysis showed that sugarcane waste as much as 1.035 tons/day on average was able to meet all the electrical energy requirements for the operation of the Madukismo sugar factory.

Keywords
Biomass, sugarcane waste, electrical energy, renewable energy

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/nBfdkY8DhA43

Corresponding Author
absti wahyuni

Institutions
Master of Hospital Management, Postgraduate Studies, Universitas Muhammadiyah Yogyakarta

Abstract
BACKGROUND: The application of surgical safety checklist in the health service has succeeded in improving patient safety in surgical room. The use of similar tools might be useful in hemodialysis service. Safety checklist helps medical workers to conduct medical activities more orderly and sequentially in order to reduce the number of unwanted events in patients.The purpose of this research is to arrange the safety checklist in hemodialysis service. METHOD: This study uses a qualitative method with an action research approach. Data obtained from activities series of observation, interview and Focus Group Discussion in Nitipuran Hemodialysis Clinic. RESULT and DISCUSSION: On the stages of Diagnosis Action obtained that the early screening activities and the supervision along hemodialysis activities are still deficient and have a risk of increasing the morbidity and mortality of patients. It is approved to use the tool of hemodialysis safety checklist which consists by 4 assessment period namely sign in (before action starts), time out (before vascular access), intra (monitoring along dialysis) and sign out (before patient leave hemodialysis room). Tool implemented for 2 weeks. The results of the implementation are very important to provide information about the patient and be written documentary evidence about the compliance of the officer to the actions and supervision that must be performed on the patient. This tool also increases the role of general practitioners in supervising the readiness and change of the patient condition, before and during the action. CoONCLUSION: Hemodialysis safety checklist is useful for helping clinical staff to comply with initial screening activities and monitoring patients during and after the procedure. The obstacles in its implementation need a further evaluation

Keywords
Safety Checklist, hemodialysis

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/wAbkz38eBdta

Corresponding Author
Irsandi Dwi Oka Kurniawan

Institutions
Department of Chemistry, Faculty of Science, Institut Teknologi Sepuluh Nopember, 60111, Surabaya
*corresponding author: nurul_widiastuti[at]chem.its.ac.id

Abstract
This study aims to determine the CO_2 adsorption capacity of activated carbon doped with nitrogen-doped. Activated carbon is carbonized from biomass empty fruit bunches (EFB). The results of lignocellulose analysis of EFB, 42.87 wt% of hemicellulose, 27.31 wt% of lignin, 26.42 wt% of cellulose and 3.40 wt% of ash indicate the characteristics of activated carbon. Potassium hydroxide is used as an activating agent and urea as a nitrogen precursor with a mass ratio, activated carbon: urea = 1: 3 (ACP13). The modified activated carbon was characterized by Fourier-Transform Infrared (FTIR) and X-ray diffraction (XRD). The results show that activated carbon has low crystallinity and graphitization due to the activation effect of potassium hydroxide and doping nitrogen from urea. The adsorption of CO_2 on ACP13 and pristine activated carbon was performed using the gravimetric method at 30 °C and 1 bar. Results showed that the CO_2 adsorption capacity was 17.76 wt% and 8.34 wt% for ACP13 and pristine activated carbon, respectively. The adsorption process of CO_2 at 30 °C follow the pseudo-second order.

Keywords
activated carbon; nitrogen-doped activated carbon; palm oil; empty fruit bunch; CO2 adsorption; pseudo-second order

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/MW6EFTrUvfVk

Corresponding Author
Tri Wulandari Kesetyaningsih

Institutions
Universitas Muhammadiyah Yogyakarta

Abstract
Dengue Hemorrhagic Fever (DHF) is a disease that has a rapid geographical spread and the number of incidents is increasing. The disease is transmitted through the bite of Aedes aegypti or Aedes albopictus which sucks human blood during the day so that the transmission might be related to human activities. Human activities are related to age and sex. This study aims to analyze descriptively about the incidence of dengue based on age and sex. Secondary data in the form of data on DHF patients with their age and sex in the period of 2008-2013 were obtained from the Health Office of Sleman Regency, Yogyakarta, Indonesia. The results showed that (1) aspects of age group: toddlers and children 5-14 years old ranged from 23.39% - 40.20% (35.68%), and &

Keywords
dengue hemorrhagic fever, distribution, age and sex

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/RMPntV9NDWyq

Corresponding Author
Sukamta Sukamta

Institutions
Mechanical Engineering Department, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta

Abstract
The investigation of two-phase flow in mini or capillary pipes becomes very important since it is used in various applications such as x-ray, heat exchanger, geothermal piping systems, boilers, oil, and gas. Furthermore, its application in biomedicine comprising the cardiovascular system which is blood circulation that is made up of the heart, blood vessels and the blood that circulates throughout the body. Along with the widespread application of two-phase flow, more in-depth research of two-phase flow is required by performing a variety of methods to find out its effect on characteristics of the two-phase flow and its application in biomedics. The research was carried out using experimental methods, with an inner pipe diameter of 1.6 mm and length of 130 mm. The test section with a slope of 5 degrees against the horizontal position. The working fluid being used were air and water mixed with Glycerin at concentrations of 0%, 10%, 20%, 30% for each blend, and varying the superficial water and gas velocity in the range of JL = 0.033 to 4.935 m/s and JG = 0.025 to 66.3 m/s. The research was done by the method of visualization using high-speed cameras. The research found five types characteristics of flow pattern i.e.: bubbly, plug, slug annular, annular and churn. The plug flow pattern dominates the result in this study, viscosity changes effect can be seen on the bubbly and plug flows as well as on the transition flow pattern. Flow pattern formed later are mapped based on superficial velocity variation. Map of the flow pattern is also compared to the results of previous research and it has resulted the conformity.

Keywords
annular, bubbly, gas, liquid, superficial, velocity.

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/f849UYGBxrcT

Corresponding Author
Tepthai Chotchai

Institutions
Sirindhorn College of Public Health Khon Kaen, Thailand

Abstract
In 1997, WHO reported that 25% of pre-adolescents used to drink alcohol worldwide. The purpose of this cross-sectional research was to explore the alcoholic beverage consumption (ABC) behaviors among 380 primary school students in Khon Kaen Province, Thailand. Data were collected by questionnaires and analyzed by descriptive statistics. The results revealed that 68 students (17.90%) used to drink and started drinking at 8 years old. For those who were in the alcohol consumption group, the average (SD) age onset of alcohol consumption was 10.78 (1.28) ; range 8-13 years. The most common reason for the first time of their ABC behaviors was curiosity in testing alcohol (64.71%). Most of them shared the drink with friends (75.00%). There were 60.29% and 48.52% of them that consumed alcohol after finishing their final examinations and birthday parties respectively. Most students can buy alcohol at the convenience stores (66.17%). There were 69.11% who had alcohol consumption with their family members. Conclusion: Curiosity, peers, celebrating events and family members seemed to considerably influence on the students- ABC behaviors. Therefore, health-related agencies, schools and students- families may need to help together in solving this drawback behavior of young children.

Keywords
alcohol consumption; behaviors; primary school students

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/wp9u4kWLMvzZ

Corresponding Author
Evi Yuliawati

Institutions
1Department of Mechanical Engineering, Faculty of Engineering, Jalan Veteran, Malang, Indonesia 2Department of Industrial Engineering, Faculty of Engineering, Jalan Veteran, Malang, Indonesia 3Department of Industrial Engineering, Faculty of Industrial Engineering, Institut Teknologi Adhi Tama Surabaya, Jalan Arif Rahman Hakim 100, Surabaya, Indonesia

Abstract
Remanufacturing industry has transformed into a crucial business concern due to the favorable profit achieved by a corporate. The returned products caused by end-of-used and end-of-life can be traded back both on the second-hand market and remanufactured products market. Despite the utilization of secondary resources in the making of remanufactured products, these products function similarly to the new ones. Based on that consideration, this study investigates how the consumers willingness-to-pay (WTP) on remanufactured products. This research was directed on remanufactured electronic products extensively used by university students, namely gadget. The Gadget has been selected due to the increasing demands of purchasing this product among the society, as well as the availability of various brands in the market. As for the students, the selection is based on the consideration that they are capable of providing an appraisal to distinguish remanufactured products from the new ones, particularly in term of brand and pricing. The result indicates that the students put brands into considerations when making decisions to WTP for remanufactured products. This results in the urgency for the original-equipment-manufacturer (OEM) to promote their remanufactured products well publicly. The incapability of positioning remanufactured product brands will generate competition with new products market.

Keywords
gadget; product brand; remanufactured product; willingness-to-pay

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/eUVzbh4xm2wR

Corresponding Author
Dedi Dwi Saputra

Institutions
a) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*hermanto.hmt[at]bsi.ac.id
b) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*antonius.aio[at]nusamandiri.ac.id
c) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*sumpenasuhandi[at]gmail.com
d) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*stikomcki[at]stikomcki.ac.id
e) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*mrnirat[at]gmail.com
f) Master of Computer Science Postgraduate Program, STMIK Nusa Mandiri, Jakarta Indonesia
*irawanf81[at]gmail.com
g) Information System Management Department, BINUS Graduate Program - Master of Information Systems Management , Bina Nusantara University, Jakarta, Indonesia 11480
*sfenrianto[at]binus.edu

Abstract
Trial is the evaluation phase facing the National Examination indeed, readiness in the exam is very important to be done by students in grade 3, testing the practice of the final exam for students in grade 3 will take the national examination, namely, schools, teacher guidance, and counseling have important roles in providing services to students. Trial services prior to student national exams require special professional handling, because they involve the success of students in national examinations. Errors in determining the readiness of students for national examinations can be a negative influence on the process and results of the students National Examination itself. After comparison of the Naive Bayes algorithm and the Decision Tree, the prediction results are predicted to predict the readiness of students to face the national exam. It is proven that the naive bayes algorithm has an accuracy value of 82.18% and the AUC value of -0.871 is included in the fair classification, while the Decision Tree algorithm has an accuracy of 73.45% and the AUC value of 0.696 belongs to poor classification. From these results it can be concluded that the naive bayes algorithm has a higher accuracy compared to the Decision Tree algorithm, it can be seen the difference in accuracy between naive bayes while the difference between naive bayes and the Decision Tree is 8.73%. Thus the naive bayes algorithm can predict the readiness of students to face the national exam better.

Keywords
Student, National Examination, Naive Bayes, Decision Tree

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/9w2nGrmgHyXB

Corresponding Author
Bella Devi Sekar Jati

Institutions
a) Student of Master of Management, Faculty of Postgraduate Program, Universitas Muhammadiyah Yogyakarta
JalanBrawijayaTamantirtoKasihanBantul Yogyakarta 55183, Indonesia
*bellasekarjati60[at]gmail.com
b) Departement of Mechanical Engineering, Faculty of Vocational Program, Universitas Muhammadiyah Yogyakarta
JalanBrawijayaTamantirtoKasihanBantul Yogyakarta 55183, Indonesia
*rinasaanugrah[at]umy.ac.id
c) PT. Abisha Bumi Persada
Papua Barat

Abstract
There are negative impacts of social environmental impacts due to mining operations in UP. PARNO. There are some potential dangers if the social environmental impacts are not reduced and not treated properly so as to disrupt the activity of the society near the mining area. Therefore, as a responsibility of mining company in UP. PARNO, implementation of CSR (Corporate Social Responsibility) programs must be beneficial for the society and the company itself. Based on the test, this have been conducted on 48 respondents with the statement covering the implementation of CSR and the social environmental impacts received, it will have a positive impact or even a negative impact. This test is done from testing data of each questionnaire that is CSR implementation and social environmental impact. The analysis of Implementation of CSR that has been done according to the results of the study based on the respondents are valid and reliable. This means that CSR programs that have been done by UP. PARNO already running well according to its implementation.

Keywords
social environmental; CSR; negatif impact; respondents

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/xq6g2ACkyHuE

Corresponding Author
Agung Terminanto

Institutions
a,b) Computer Science, Faculty of Computer Science, Universitas Indonesia, Depok, Indonesia
* agung.terminanto[at]gmail.com
c) Industrial Engineering, Universitas Pancasila, Department of Engineering, Jakarta, Indonesia

Abstract
Industry 4.0 has changed the way of life, work and interact, creating new opportunities and challenges. One characteristic of Industry 4.0 is cloud computing. To deal with these challenges, SMEs need an application that can integrate and automate SME business processes. Cloud ERP applications can be one solution for SMEs because of the benefits that can be given such as providing information with fast response times, increasing interaction between parts of an organization, improving the management of goods ordering cycle, etc. This study aims to determine what factors influence intention adoption of Cloud ERP in SMEs using the Factor Analysis method. Determination of factors integrating the framework of TOE (Technology, Organization, Environment) and DOI (Diffusion On Innovation) which produces 17 research factors. The number of respondents is 95 SMEs. This study use extraction dan rotation phase with Varimax Method. The analysis of factors generating the value of Kaiser-Meyer Olkin (KMO) and Bartletts Test of 0.744. The results showed that there were 12 factors out of 17 factors that influenced the adoption of ERP Cloud in SMEs. With Factor Analysis, the 11 factors can be summarized into 3 main factors, namely the Companys Internal Factors (consisting of Management Support, Absorptive Capability, Employees Knowledge and Perceived Value); Supporting Factors (consisting of Size of Firm, Competitive Pressure, External Support, and Business Partners); and Technical Factors (consisting of Technical Know-How, Compatibility, Relative Advantage, and Observability).

Keywords
SMEs, Cloud ERP Adoption, TOE framework, DOI framework, Factor -Analysis.

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/ULqjE9aN4hPp

Corresponding Author
Asti Nurhayati

Institutions
Master of Hospital Management, Postgraduate Program, Universitas Muhammadiyah Yogyakarta
Brawijaya Street, Tamantirto, Kasihan, Bantul 55183, Yogyakarta, Indonesia
astynurhayati25[at]gmail.com (1)

School of Nursing, Master in Nursing Program, Universitas Muhammadiyah Yogyakarta
Brawijaya Street, Tamantirto, Kasihan, Bantul 55183, Yogyakarta, Indonesia (2)

Master of Hospital Management, Postgraduate Program, Universitas Muhammadiyah Yogyakarta
Brawijaya Street, Tamantirto, Kasihan, Bantul 55183, Yogyakarta, Indonesia (3)

Abstract
Background: Midwifery quality service is affect to quality satisfaction level and lead to a decreasing maternal mortality rate and infant mortality rate in Indonesia. Midwifery service is mostly delivered in primary health care. Therefor it is important to analyse the quality of midwifery service. Methode: A cross sectional survey, conducted in 6 primary health care and involved 75 respondents. Two questionaire were analyzed to measure perceptions of midwifery quality service and quality satisfaction level. Result: The results showed the quality of midwifery services affected the level of service satisfaction by 2.8%. The majority of respondents felt that the midwifery service they received was satisfying as many as 39 respondents (52%). But if viewed based on the frequency of service satisfaction levels, many respondents stated dissatisfaction (92%) in antenatal care. This is caused by communication factors between midwives and patients. Conclusion: Many respondents stated that communication by midwives was still poor. This can be seen from the many respondents who gave an not qualified response to item reliability on the variable quality of midwifery services. Keywords: Antenatal care, Intranatal care, Level of patient satisfaction, Postnatal care, Neonatal care, Quality of midwifery services.

Keywords
Antenatal care, Intranatal care, Level of patient satisfaction, Postnatal care, Quality of midwifery services

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/k3nJKxaqmpHz

Corresponding Author
Yuda Dian Harja

Institutions
a) Department of Information Technology Management, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, Indonesia
b) Department of Mathematics, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, Indonesia
c) Faculty of Economics and Business, Universitas Muhammadiyah Sidoarjo, Sidoarjo, Indonesia

Abstract
One of the main stages to achieve the success of the Online Learning Platform technology is the acceptance of the technology by its users. Therefore, identifying the factors that influence the success of technology acceptance is very important. This study aims to identify the usefulness of technology in the Online Learning Platform. This study uses the Unified Theory of Acceptance and Use of Technology (UTAUT2) approach which has been modified to analyze the factors of acceptance of Online Learning Platform technology. In addition, the Partial Least Square Structural Equation Modeling (PLS-SEM) method was used to test the hypothesis of the research conducted. The expected results of this study are to obtain the most influential factors in the acceptance of the Online Learning Platform technology, to be used later by providers of Online Learning Platform technology as a reference in making strategic decisions for further development.

Keywords
UTAUT2, PLS-SEM, Technology Acceptance, Online Learning

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/wQWK7jqcRUhg

Corresponding Author
Ricky Indra Alfaray

Institutions
(1)Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
(2)Faculty of Medicine, Universitas Sriwijaya, Palembang, Indonesia
(3)Faculty of Medicine, Universitas Muhammadiyah Surabaya, Indonesia

Abstract
Indonesia is the fourth most populous country in the world, with approximately 50% of the population classified as Millennial Generation and iGeneration which characteristically close to technology such as social media. Social media has many positive impacts on youth, but their negative impact such as addiction and bullying cannot be denied. This problem is, unfortunately, has not been much researched yet in Indonesia. We wanted to identify the correlation between social media addiction and feeling of being bullied in the two youngest generations in Indonesia. We conducted a nation-wide observational analytic study with a cross-sectional design. A total of 1403 Millennial Generation and iGeneration respondents were collected using purposive sampling. The online questionnaire was designed to collect comprehensive information about the variables studied which are participant-s demographic status, social media addiction status, and feel of being bullied. We found a significant correlation between social media addiction status and feel of being bullied (p=0.000). This may indicate that social media addiction is a factor related to bullying in the Millennial Generation and iGeneration. These results will provide information on the development of relevant education and information system to enhance awareness about social media addiction and bullying cases.

Keywords
Social media addiction; feel of being bullied status; Millennial Generation; iGeneration

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/gyF8Kj4tmEpa

Corresponding Author
Muhammad Nadjib

Institutions
(a) Doctoral Study Program, Department of Mechanical and Industrial Engineering, Faculty of Engineering
Gadjah Mada University, Yogyakarta, Indonesia
(b) Mechanical Engineering Study Program, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta Yogyakarta, Indonesia
* nadjibar[at]umy.ac.id
(c) Department of Mechanical and Industrial Engineering, Faculty of Engineering, Gadjah Mada University
Yogyakarta, Indonesia

Abstract
Phase change material (PCM) is known as a material that has high energy density. The integration between water and PCM in a solar water heater (SWH) system has a potential method to increase the capacity of thermal energy storage. One of important parameter in a SWH tank is a thermal stratification. This parameter can affect thermal efficiency of a SWH system. The aim of this paper is to analyze the thermal stratification of water in a SWH tank containing PCM. PCM is inserted in a cylindrical capsule. The bundles of capsules are arranged in a SWH tank. An outdoor experiment is conducted on a SWH system during charging process. The intensity of solar radiation, water and PCM temperature are recorded. The resulting data was used to make the temperature evolution of water. Stratification analysis was performed using the Richardson number calculation. Based on the evolution of water temperature, it appears that there is a temperature difference in each layer of water. The results also show that the Richardson number is greater than 1. This result confirms that thermal stratification has been formed in a tank. The addition of PCM in a SWH tank is able to maintain thermal stratification.

Keywords
phase change material, solar water heater, charging, thermal stratification, Richardson number

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/ydNLxKZTwCP2

Corresponding Author
Dewi Ayu Puspitawati

Institutions
Sekolah Tinggi Manajemen Informatika dan Komputer Nusa Mandiri (a)
Jl. Damai No.8 Warung Jati Barat (Margasatwa) Jakarta Selatan DKI Jakarta, Telp. (021-78839502)
* dewiayu.puspitawati[at]gmail.com

Information Systems Management Department, BINUS Graduate Program (b)
Master of Information Systems Management, Bina Nusantara University, DKI Jakarta 11480

Universitas Bina Sarana Informatika (c)
Jl. Kamal Raya No.18, RT6/RW.3, Ringroad Barat, Cengkareng, Kota Jakarta Barat DKI Jakarta 11730

Abstract
Website managers are required to have the ability to manage, organize, and design the website so that users feel comfortable when searching for information on the website that has been made. Likewise with PT. Pertamina is making the companys website a place for promotion and providing information to users. The performance of a website can be increased as much as possible by analyzing and evaluating the level of satisfaction of its users. The public can assess a company by looking at how the company publishes information accurately with a view that is easily understood by the user. Ratings given are usually shared into various statuses on social media owned by users such as Twitter. On Twitter everyone makes a tweet, whatever the type of tweet that only consists of fragments of words whose meaning is difficult to know. The data is getting more and more and not systematically developed, from the existing problems a method is needed to classify a tweet from Twitter into a new knowledge using the Naive Bayes classification method and Support Vector Machine. After testing, the results showed that the SVM method produced an accuracy of 89.39% while the NB method produced an accuracy of 88.02%.

Keywords
Data Mining, Text Mining, Sentiment Analysis, Support Vector Machine, Naive Bayes

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/rtHGpxUQzb9T

Corresponding Author
Muhtarom Widodo

Institutions
a) Information Technology Management Department, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, Indonesia
b) Mathematics Department, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, Indonesia
c) Management Department, Universitas Muhammadiyah Sidoarjo, Sidoarjo, Indonesia

Abstract
In recent years, digital wallets took the spotlight as an alternative payment solution in Indonesia. But based on data from the World Bank, only 3% of the Indonesian population aged over 15 years old use digital wallet service in 2017. Therefore, to create a cashless society, efforts are needed to increase the use of digital wallets in the community. This study will identify the factors that influence the adoption of digital wallet technology in Indonesia using the Unified Theory of Acceptance and Use of Technology 2 (UTAUT2) with the addition of perceived risk and trust factor. Partial Least Square Structural Equation Modeling (PLS-SEM) method is used to test the research hypothesis. The expected results of this research can show us the factors that influencing consumer adoption of digital wallets service in Indonesia. So, the digital wallet service providers can use this outcome of this study as a reference for make strategic decisions to improve digital wallet service in the future.

Keywords
Digital Wallet, E-wallet, Partial Least Square, SEM, Unified Theory of Acceptance and Use of Technology 2 (UTAUT2)

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/L36nHYGCdTQv

Corresponding Author
Muhammad Irsal

Institutions
a) Poltekkes Kemenkes Jakarata II, Jurusan Teknik Radiodiagnostik dan Radioterapi, Jl. Hang jebat III, 4 No.8, RW.8, Gunung, Kby. Baru, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12120

Abstract
The use of Computed Tomography (CT) as an imaging tool in the last few years has increased quite dramatically with this increase, so great attention is needed to patient safety for radiation doses. Radiographers are responsible for giving radiation doses that must be in accordance with ALARA principles, so optimize CT parameters to produce good image quality by pressing the radiation dose. The aim of the study was to determine the effect of CT mAs, kVp parameters on image quality and radiation dose received by pediatric patients. The research method is by processing the results of the examination image using a radiant viewer and analyzing the results of CTDIvol and DLP to determine the results of radiation doses. The results of the study obtained an average Signal noise Ratio value of 8.08 and a mean contrast Noise Ratio of 0.28, while for the mean value of CTDIvol was 26.75 mGy. This average value is still within the safe limits of Indonesia Nuclear Energy Regulatory Agency (BAPETEN) in accordance with the value of Diagnsotic Reference Level in 2018th on examinations of children 0-14 years, besides that based on this study there are several factors that influence dose and image quality parameters ; kVp, mAs, slice thickness, software processing.

Keywords
Signal to noise ratio, Contrast noise ratio, CTDIvol, DLP

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/pmanxCJPj9Le

Corresponding Author
Muhammad Fariez Kurniawan

Institutions
School of Pharmacy, Faculty of Medicine and Health Sciences, Universitas Muhammadiyah Yogyakarta

Faculty of Pharmacy, Universitas Ahmad Dahlan

Abstract
Medicine (TCM) because of the Ying (cold) element they have; This study aims to know the influence of various concentration ethanolic extract of Ficus carica and Ziziphus spina-christi leaves on cream and gel formulation to anti-inflammatory activity; This study used fifteen treatment groups; each of which consisted of six mice with balb / c strains; Fifteen groups included three control groups namely one group that received base cream and gel without extract; one group that became a positive control by giving voltaren emulgel; and one group that was induced by croton oil without healing; The other 12 groups were inflammatory-induced groups with croton oil and received tin extract cream and bidara leaves; The results of study showed the increasing concentration of ethanolic extract of FC and ZS leaves caused the decreasing of the value of COX-2; thickness of epidermis and the amount of inflammatory cell; The gel has the best antiinflammatory effect compared to cream;

Keywords
Ficus carica; Ziziphus spina-christi; Antiinflamation

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/GLN28PMm7CbB

Corresponding Author
Ratna Indriawati

Institutions
Department of Physiology, Medicine and Health Sciences Faculty, Universitas Muhammadiyah Yogyakarta, Indonesia

Abstract
Diabetes mellitus (DM) is the fourth causes of non-communicable diseases. DM is caused by an altered insulin secretion, function or both. One of the risk factor of Coronary Heart Disease for patient with DM type 2 is dyslipidemia. Dyslipidemia is a lipid profile abnormality such as the increasing of total cholesterol, triglyceride, LDL and the decreasing of HDL level. At DM condition, patients will encounter a lipid profile change such as hypercholesterolemia, hypertriglyceride and the increasing of LDL level. The aim for this study was to see the capacity of banana peel waste product in order to decrease glucose, triglyceride and LDL-Cholesterol level on streptozotocine inducted Rattus norvegicus. This study is an experimental research with pre and post-test control design. Samples included for this research were 25 Rattus norvegicus. Data were analyzed with wilcoxon test, kruskall wallis, and mann withney test. The duration for this study was 21 days. The glucose and LDL level data were taken twice during the research; before and after the experiment. Analysis result on Utilization of banana peel waste product to decrease glucose, triglyceride and LDL level on diabetic rat (p=0.025;p=0.043;p=0.043). The Banana peel have antihyperglicemic and antidyslipidemic capacity on diabetic rat.

Keywords
diabetes, glucose, Cholesterol, banana peel

Topic
International Symposium of Engineering, Technology, and Health Sciences

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

Corresponding Author
Rochmat Setiyawan

Institutions
a)Master of Computer Science Postgraduate Program STMIK NUSA MANDIRI
Jalan Kramat Raya No.18, Jakarta Pusat 10420, Indonesia
14002195[at]nusamandiri.ac.id

b)Master of Computer Science Postgraduate Program STMIK NUSA MANDIRI
Jalan Kramat Raya No.18, Jakarta Pusat 10420, Indonesia
14002193[at]nusamandiri.ac.id

c)Master of Computer Science Postgraduate Program STMIK NUSA MANDIRI
Jalan Kramat Raya No.18, Jakarta Pusat 10420, Indonesia
junday86[at]gmail.com

d)Master of Computer Science Postgraduate Program STMIK NUSA MANDIRI
Jalan Kramat Raya No.18, Jakarta Pusat 10420, Indonesia
risnandar01[at]gmail.com

e)Master of Computer Science - Postgraduate Programs
STMIK Nusa Mandiri
Jakarta, Indonesia
windu.gata [at]gmail.com

Abstract
The variety of virtual game champions Power Ranger Legacy Wars on the smartphone platform makes users confused in determining the formation of the team. But the choice of team formation during the process of playing video games requires a thorough skill and strategy that can sometimes lead to unexpected problems due to poor choices and can affect the game. In this paper, we will present the K-Means method to clustering warrior of team selection in the game, then we will discuss the results to see whether the method chosen provides the right decision that will help players choose combination the warrior ranger easily in the game.

Keywords
k-means, data mining, android, power ranger, team

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/pUmbBDfY48Z9

Corresponding Author
Mustika Astuti

Institutions
Hospital management, Post Graduate Program
Universitas Muhammadiyah Yogyakarta

Abstract
The principle of lean management is to eliminate waste and how to change flexible procedures for effective improvement to achieve standards by involving employees. Hospital Accreditation is an acknowledgment given by the government to hospital management, because it has met the standards set. Efforts are needed to achieve these standards, so that the implementation is easy and fun. It needs to keep its continuity so that it becomes a work culture. The purpose of study was to analyze the use of lean management in the implementation of hospital accreditation standards. Method of this research is a qualitative study. It is a participatory action research design in a hospital. The results of the study, the use of lean management can improve the implementation of accreditation in the Management of Communication and Education standard, specifically on proof of verification to ensure patients and families can understand the educational material provided by using visual management, by putting signs to facilitate the unit to solve problems easily and eventually become a work culture at Muhammadiyah Hospital in Yogyakarta

Keywords
lean management, accreditation, visual management, culture

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/wDh97UCuFybG

Corresponding Author
YOGI PRIYO PRADANA

Institutions
(a)(b)(c)(d)(e) Departement of Civil and Environmental Engineering, Bogor Agricultural University, Bogor, Indonesia 16680

* Corresponding Author Email: yogi_123[at]apps.ipb.ac.id (YPP); heriansyahptr[at]apps.ipb.ac.id (HP)

Abstract
This paper presented the application of gold mining waste which is called "tailing" as the substitution material of fine aggregate in the hot rolled sand sheet. Several amounts of tailing are substituted to modify the gradation of the fine aggregate. The gradation analyses are conducted to evaluate the effect of the substitution of tailing on the gradation distribution of the mixed material. The Marshall tests are also conducted to asses the impact of tailing substitution on the strength of the hot rolled sand sheet. The gradation analysis shows that the substitution of 50% tailing has a significant effect on the distribution of mixed materials. The coefficient of uniformity, Cu and coefficient of curve, Cc of 4.82 and 1.72 are obtained, respectively. The mechanical test results using the Marshall test shows that the substitution of 50% tailing brings about a significant improvement in the strength of the hot rolled sand sheet. The strength of hot rolled sand sheet increase 100% or 2-fold higher compared than those without the tailing is obtained. The results of this study have indicated that the gold mining waste of tailing may be viable as the substitution material in the hot rolled sand sheet.

Keywords
tailing. gradation analyses, hot rolled sand sheet, and strength

Topic
International Symposium of Engineering, Technology, and Health Sciences

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

Corresponding Author
Rizka fakhriani

Institutions
1Departement of Otorhinolaryngology, Faculty of Medicine and Health Sciences, Universitas Muhammadiyah Yogyakarta
2Departement of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada
Email: rizkafakhriani[at]gmail.com

Abstract
Foreign-body ingestion is a common event most often seen in children from 6 months to 6 years of age. In adults, foreign bodies are usually ingested accidentally together with food. The esophagus is the most common site for acute foreign body or food impaction in the gastrointestinal tract and 80% to 90% of swallowed objects that reach the stomach will eventually pass without intervention. We report a case of 56 years old woman who presented with difficulty swallowing (dysphagia) and odynophagia after ingested artificial denture accidentally during a meal for 3 hours. There was no respiratory distress, bleeding, chest pain or fever. There was pooling saliva in bilateral pyriform sinuses in indirect laryngoscopy. X ray neck showed artificial denture at the level of C7 vertebra. The patient was admitted for emergency rigid esophagoscopic and removal of foreign body. The artificial denture was removed successfully with minimal bleeding. No complication afterward.

Keywords
esophagus, foreign body, rigid esophagoscopic

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/uNaMpjXkc24q

Corresponding Author
Anna Nur Nazilah Chamim

Institutions
Universitas Muhammadiyah Yogyakarta

Abstract
Electrical Engineering program in Universitas Muhammadiyah Yogyakarta in recording document accreditation forms still not efficient. It can be seen from the way of conducting data collection is still manual like using Microsoft Word or Microsoft Excel are kept manually and put together in a book files because there is no system that can store documents (accreditation forms) is. This can be delays in preparing reports and process to search document. The purpose of this final project is to create web-bassed of information system entitled "Web Based Information System of Accreditation Saving Document For Undergraduate Program" which is use to process documents in the form of accreditation undergraduate programs that can be organized so as to facilitate the storage and search documents. By using SDCL waterfall method and feasibility test 79,5% through Questionnaire as well as addition of guide on user page, this website can help to better data processing of accreditation document.

Keywords
Document, Accreditation forms, Information systems, Website, Waterfall

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/F9PvkUA8ub6n

Corresponding Author
Dwi Suhartiningtyas

Institutions
Dental School of Faculty Medicine and Health Sciences, Universitas Muhammadiyah Yogyakarta

Abstract
Introduction. Benign Migratory Glossitis (BMG) is a benign condition in the lateral and dorsal of the tongue with a movable pattern. Characteristic of lesions in the form of reddish patch surrounded by white bands with elevated and irregular edges. BMG is often found accidentally during routine examination and is asymptomatic or symptomatic. Etiology is not known exactly, but is related to a number of factors such as hereditary, nutritional deficiency, allergy and others. Objective. This case report was written, a case of BMG in a 4 year old child because the mother was worried about the condition. Case. A mother with her 4 year old son came to the UMY Hospital with complain of reddish patch on the tongue, since 6 months ago, recurring with a shifting pattern. The patient mother was worried about the condition, even though there was not any pain complain by the child. Among the family members there were no similar conditions found. Good general health history, poor diet and oral hygiene habits. Intraoral examination showed red patch with elevated edges, white and irregular. Within 3 months of observation there were changes in the pattern of lesions on the first, second and third visit. Case management were provide by communication, information and education to the mother, including explanation related to BMG is not a malignancy, an infectious disease with multifactorial causes. Patient was advised to maintain oral hygiene. Conclusion. Benign Migratory Glossitis is a benign condition that does not turn malignant. There are no treatment needed, except BMG with a symptomatic.

Keywords
Benign Migratory Glossitis, Geographic tongue, Children

Topic
International Symposium of Engineering, Technology, and Health Sciences

Link: https://ifory.id/abstract/rRFw2bzUHtMy

Corresponding Author
Winny Setyonugroho

Institutions
Universitas Muhammadiyah Yogyakarta

Abstract
Background Systematic review (SR) is the highest evidence based resource in the health science area. It deals with a vast amount of data that each researcher is required to handle, therefore, managing the bibliography section in the SR project can be quite challenging. Aim The aim of this paper is to describe the management process of the bibliography collection and the data in a systematic research project using an open source software known as Zotero. Design/methodology/approach This study utilized a standalone Zotero obtained from www.zotero.orgto manage the bibliography section and other resources. This software also allowed for collaboration amongst researchers. The approach to the data and resources management is based on a previous SR study conducted by the first author and the data sample used in this study is based on current ongoing SR studies which implements four databases provided by the co-author whilst the supervision of the first author. Findings/Results Total result is2478 papers with an end process of 36 papers to be analyzed for the review. The process is divided into two main steps with a separate Zotero database for each step. The first database is specifically for collecting the search results from the four databases and removing duplicate papers. The end result of this first step is then exported into the second Zotero database, which becomes the main working area for the entire project. This two-step process is intended to keep the search results in the original state whilst keeping in mind that the main goal is to avoid losing the original data. Each collection is categorized since the first step of the SR in order to follow the multiple steps of SR process. This is to ensure that all researchers are able to keep track of the process and collaborate through the Zotero cloud storage. Practical Implication/Conclusion Using a bibliographic software is mandatory when working on SR, and the Zotero open source software has proven to be able to handle massive data in this type of research study.

Keywords
systematic review; bibliographic software; zotero

Topic
International Symposium of Engineering, Technology, and Health Sciences

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