Indonesia Conference Directory

Corresponding Author
Haikal Haikal

Institutions
Faculty of Mechanical Engineering, Akademi Teknologi Warga Surakarta
Jalan Raya Solo-Baki Km. 2, Kwarasan , Solo Baru, Sukoharjo 57552, Indonesia
*basalamahhaikal3[at]gmail.com

Abstract
Friction welding is one of the solid-state welding processes that is capable of producing high quality joints for dissimilar materials. This study aims to determine the effect of pressure and welding time on the physical and mechanical properties of friction welding joints of AISI 316 and AISI 4140. The physical are microstructure on interface joint and dimension of flash was investigated. The variation of friction pressure used is 50 kg/cm², 70 kg/cm² and 90 kg/cm², while the time variations used are 35 seconds, 50 seconds and 65 seconds. The results of this study indicate that the greater the friction pressure and friction time applied, the greater the tensile strength achieved is 27.31 KN/mm². The effect of increasing friction pressure variations can reduce the value of weld joint hardness, but conversely if the friction time increases, the hardness value in the weld joint area will also increase. It was proven that in the variation of the minimum friction pressure the hardness achieved was 530.5 HVN but the maximum friction pressure variation only reached 352.2 HVN. The greater the friction pressure and friction time applied, the greater flash produced, which is 8.9 mm.

Keywords
Friction welding; Dissimilar metals; AISI 316 austeitic stainless steel; AISI 4140 steel; Physics; Mechanical properties

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/mMXDt8rQqbhL

Corresponding Author
Ari Suryawan

Institutions
a,b) FKIP Universitas Muhammadiyah Jakarta
c,d) FKIP Universitas Muhammadiyah Magelang

Abstract
Effect of Tourism Environment on Student Character Education. Education is a planned effort in the process of mentoring and learning for individuals to develop and grow into independent, responsible, creative, knowledgeable, healthy, and noble people both in physical and spiritual aspects. Humans who have a noble character, who have high morality are very required to be formed or built. The Indonesian people do not merely exude the importance of education, but also how the Indonesian people can realize the concept of education by coaching, training and empowering Indonesian human resources sustainably and equitably. With and through education, Indonesian children can seize opportunities that can empower life. One of them is a good understanding of the Tourism Environment.

Keywords
Tourism Environment, Character Education Students

Topic
Education

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

Corresponding Author
Ni Luh Putu Lilis Sinta Setiawati

Institutions
a) Industrial Engineering, Bandung Institute of Technology
Jalan Ganesha 10, Bandung 40132, Indonesia
*dwitaastari.p[at]gmail.com

Abstract
Virtual Reality (VR) is a technology that has been widely used for various industrial purposes in recent days. Despite the potential benefits, VR usage may impose adverse effects that can prevent users reaching their goals of using VR safely and comfortably. One potential adverse effect is the disruption of the postural stability during VR usage. This study aimed to evaluate the effect of using VR on postural stability. A number of 14 participants involved in the experimental set up playing a simulated game with Samsung Gear Head Mounted Display (HMD) for 30 minutes with standing posture. During the experiment, center of pressure (COP) data were obtained every 10 minutes using an AMTI® forceplate to calculate postural stability using three parameters including mean distance (MD), mean velocity (MV), and sway area (SA). The results showed that longer duration of VR usage significantly increased MD and SA. Meanwhile, MV remained constant throughout the experiment. These indicated the use of VR may worsen users postural stability. Thus, caution should be used to develop future guideline to increase VR safety.

Keywords
Virtual reality, Head-mounted display, Postural stability

Topic
Industrial Engineering

Link: https://ifory.id/abstract/dyJxeWpA4u3G

Corresponding Author
norman iskandar

Institutions
(a) Department of Mechanical Engineering, University of Diponegoro
Jl. Prof. Sudharto SH, Tembalang Semarang 50275, Indonesia
*norman.undip[at]gmail.com
(b) Department of Mechanical Mechanical Engineering, Semarang State University
Jalan Taman Siswa Sekaran, Gunungpati Semarang, 50229

Abstract
Rice husk is a waste that has a very high amount every year and is spread in several islands in Indonesia. The use of rice husk as a source of energy raw materials is still very low. Rice husk itself in terms of potential amount and distribution has the potential to become a renewable energy source for rural areas so that it can overcome the problem of rural energy needs. By modifying rice husks into bio-pellets, rice husks can be a source of energy for the daily needs of rural communities and it is possible to support the industrial sector in rural areas so that the reach of rice husk waste can be increased and economic functions also increase. The bio-pellet quality reference standard made refers to the SNI standard. To make bio-pellets, flat die mill type machines are used with speeds of 1660 rpm. As an adhesive used cassava flour with a variation of 10% and 20% and a variation of water 15%; 20% by weight of rice husk. Compaction pressure varies by adjusting the gap between the roller and die with a distance of 0.5mm, 1mm and 1.5mm. From the results of testing the characteristics of bio-pellets that have been carried out, the best bio-pellet is obtained from bio-pellets which are processed from a mixture of rice husk with the addition of water by 20% with a roller and die gap of 1.5 mm and an adhesive of 20% where the calorific value is 4182 cal/gram. Of the five SNI standard parameters, for the ash standard, the product made cannot meet the maximum value of the ash standard, namely ash content ≤ 1.5%. For other standards such as having a calorific value of more than 4000 cal/gram, the bonded carbon value is ≥ 14%. Volatile content is less than ≤ 80% and has a density of ≥ 0.8 already fulfilled.

Keywords
biomass; bio-pellets; cassava starch; renewable energy;rice husks; SNI

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/pZRG6tM82HyF

Corresponding Author
DPPJ UMMagelang

Institutions
Universitas Muhammadiyah Magelang,
*astiwi14[at]ummgl.ac.id

Abstract
Student who has high self-confidence will seem to be confident in their own abilities and have measurable expectations, even when their expectations are not realized. They still stay positive and can accept the situation in him. The phenomenon that occurred at Muhammadiyah Senior High School 1 showed us some students who lacked their self-confidence. They looked shy when entered and met teachers. They were not eager to speak to their friends. Besides, they often cheated during the tests. It indicated that they were not sure of their abilities. While the guidance and counseling program did not provide optimal services. This prior study aimed to determine the effectiveness of guidance and counseling services using monopoly media to improve their self-confidence. It employed experimental method with AOD (After Only Design) Design. It covered preparation, planning, conducting research, and display. the score of the experimental group was higher than the control one. The statistical calculation showed that the sig. 0.001 <0.05. Hence, the results revealed that it was assumed to be effective in increasing students- self-confidence.

Keywords
Guidance; counselling; monopoly; self-confidence

Topic
Education

Link: https://ifory.id/abstract/qDa2nA3KvedJ

Corresponding Author
DPPJ UMMagelang

Institutions
(a) Doctoral Program in Environmental Science, Graduate Program, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A, Kentingan, Surakarta, 57126, Indonesia.
(a) Department of Industrial Engineering, Universitas Muhammadiyah Magelang. Jl. Bambang Soegeng, Mertoyudan, Magelang 56172, Indonesia.
(b) Faculty of Agriculture, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A, Kentingan, Surakarta, 57126, Indonesia.
(c) Departement of Economic Development, Faculty of Economic and Business. Universitas Sebelas Maret, Jl. Ir. Sutami 36 A, Kentingan, Surakarta, 57126, Indonesia.
(d) Faculty of Geography Universitas Gadjah Mada. Bulaksumur, Yogyakarta 55281, Indonesia.

*Corresponding author, e-mail : m_imron_rosyidi[at]ummgl.ac.id

Abstract
This study aims to determine the effectiveness of the implementation of an ISO 9001-based quality management system in the childrens toy industry which already has the Indonesian National Standard (SNI) certification in the Yogyakarta region of Indonesia, including motives that encourage the industry to implement a quality management system, implementation obstacles encountered and impacts on company performance. The research methodology was carried out through a survey of the childrens toy industry in the Yogyakarta region which was SNI certified. Industries are determined based on the categories of large, small and medium industries. The results found that the motives of the childrens toy industry in implementing an ISO 9001-based quality management system were not the same. The big category of childrens toy industry in implementing an ISO 9001-based quality management system was identified to control process activities effectively and efficiently, as well as to comply with applicable government regulations. The category of medium and small industries are the motive for implementation because there are mandatory government regulations. Issues of management responsibility, human resources, and certification costs are identified as obstacles to the effective implementation of the quality management system. The study also found that the certified childrens toy industry had not yet reached the expected level of company performance.

Keywords
Childrens toy industry; Quality Management System; ISO 9001; Company performance.

Topic
Industrial Engineering

Link: https://ifory.id/abstract/Cep47Z9yzHwa

Corresponding Author
Devi Permata Sari

Institutions
(a) Muhammadiyah Klaten Health and Science College

Abstract
Background: The postpartum period was a critical transitional time for a woman, because it undergoes significant changes in the body, physically and physiologically. Likewise, complications and problem related to delivery such as pain and healing of episiorraphy. The main goals in postpartum care is to assist and support the woman-s recovery to the prepregnant state and educate the mother about her own self care. Methods: The design of this research was pretest and posttest nonequivalent control group. The sample was 15 participant for intervention group using lavender sitzbath therapy and 15 participant for control group using sitzbath therapy only. The instrument using REEDA scale. Bivariate statistical test using Wilcoxon and Mann Whitney. Results : The experiment group using lavender sitzbath therapy in pretest “slightly healed” on the effectiveness of the lavender sitzbath theraphy in terms of healing process of episiorraphy on primiparous mother with the weighted mean 8.87 and the posttest “fully healed” with the weighted means 1.37. The result of pretest and posttest had p value of 0.001. it was interpreted that the lavender sitzbath therapy had a significant relationship in healing process of primiparous mother Conclussion: Lavender sitzbath therapy was effective on episiorraphy among postpartum mother

Keywords
Lavender, Sitzbath Therapy, Episiorraphy

Topic
Health Science

Link: https://ifory.id/abstract/gfEvCZQ2b4MT

Corresponding Author
Nuniek Nizmah Fajriyah

Institutions
Midwifery Department, University of MuhammadiyahPekajanganPekalongan, Central Java

khuzaiyahpenulis[at]gmail.com

Abstract
Background. Breast Milk (ASI) is the most complete, safe, hygienic and inexpensive nutritious food. However, the culture of food restriction in the community is often a barrier to improving nutrition for both the mother and her baby. Various efforts have been made by the government, especially the Health Office, both strategic approaches and tactical approaches. Cultural aspects tend to be difficult to remove from society. Alternative improvement of postpartum nutrition by supplementation was tested in this study, namely by giving Moringa leaf extract to postpartum mothers who abstain from food as an effort to improve maternal nutrition and breastmilk quality. Objectives. The purpose of this study was to determine the effectiveness of giving Moringa leaf extract in increasing the productivity of breast milk in postpartum mothers who abstain from several kinds of food. Method. This was a quasi experimental with pre-test and post-test control group design approach. The samples were postpartum mothers abstaining food in the work area of Pekalongan District health center, the sampling technique was purposive sampling in the area of community health center of Kedungwuni I and Kedungwuni I, Pekalongan Regency. Breast milk production is measured based on the babys weight gain. The data was analyzed by using paired t-test and Mann Whitney test. Results and Discussion. There were significant differences before and after giving Moringa extract with p value 0,000 and CI (-1308,934) - (-814,595). Analysis in the control group contained a significant difference in mean before and after giving Moringa extract with p value 0,000 and CI (-1098,988) - (-751,012). There was a mean difference between those given Moringa extract and which were only monitored without giving Moringa extract with a p value of 0.049. This study shows that the Moringa extract effectively increases milk production with indicators that there was a difference in weight gain in infants between the control group and the experimental group. It was expected that the results of this study can be one of the references in the implementation of midwifery care for postpartum mothers. Research with wider variables and more respondents is needed.

Keywords
breast milk production, food restriction, postpartum mothers

Topic
Health Science

Link: https://ifory.id/abstract/WNVDXgn3RxGa

Corresponding Author
Zulfikar Bagus Pambuko

Institutions
a Department of Nursing, Faculty of Health Sciences, Universitas Muhammadiyah Magelang,
Indonesia
b Department of Medical Laboratory Science, Faculty of Nursing and Health Sciences,
Universitas Muhammadiyah Semarang, Indonesia
cDepartment of Pharmacy, Faculty of Health Sciences, Universitas Muhammadiyah Magelang, Magelang, Indonesia
dDepartment of Pharmacy, Faculty of Pharmacy, Universitas Ahmad Dahlan, Yogyakarta, Indonesia
eDepartment of Pharmacy, Faculty of Medicine and Health Sciences, Universitas Muhammadiyah Yogyakarta, Yogyakarta, Indonesia
fMuhammadiyah Research Network for Plasma Medicine (M-Plasmed), Semarang, Indonesia
gResearch Center for Experimental Wound Healing, Universitas Muhammadiyah Magelang,
Indonesia
*e-mail : nasrudin[at]unimus.ac.id

Abstract
An investigation was carried out to determine the effect of plasma activated Aloe vera slice on for wound contraction in a small animal model mimicking a clinical setting. An atmospheric plasma jet using medical grade argon gas as a carrier gas was developed. Twelve experimental mouse Balb c, male, age 7-8 weeks, were classified into 4 groups, namely, Control (C), Aloe vera slice alone (A), Plasma activated Aloe vera slice with distance 10 mm (PAV-10) and Plasma activated Aloe vera slice with distance 20 mm (PAV-20). Aloe vera slices with thickness about 2 mm was prepared. They were treated by atmospheric plasma jet with distance 10 mm and 20 mm during 2 minutes before their application. Visual evaluation of wounds was conducted for 14 days. Wound contraction was calculated using a mathematic formula based on wound area measurement supported by computer software Scion. This investigation showed that wound contraction percentage in groups containing Aloe vera were higher than that in control group. This investigation was also showed that during proliferative phase, wound contraction percentage in PAV-20 was higher than that in PAV-10. On days 4-7 whilst that in the first group was slightly lower than that in the control, that in the second group was higher than that in the control. PAV-20 may have ability to accelerate wound healing, while PAV-10 may have ability to impede it. It was concluded that different characteristic of plasma activated Aloe vera slice may cause different effect on wound.

Keywords
Plasma Medicine; ROS; RONS; Aloe vera; wound contraction

Topic
Health Science

Link: https://ifory.id/abstract/qWDr98JxHa2g

Corresponding Author
ANDI LELY NURMAYA. G

Institutions
Departement of Primary Teacher Education, Faculty of Teacher Training and Education University Of Muhammadiyah Buton.

Abstract
The educational process is inseparable from the large role of educators (teachers) will succeed or not learn that takes place at school. In carrying out the task, the teacher challenges various challenges, challenges and challenges in the field, not the least number of teachers who are less able to process the learning process so it is difficult to influence students at school. The amount of research conducted by teachers is also very lacking due to the lack of knowledge and ability of teachers in carrying out a study. The solution offered to overcome the discussion discussed in the field is to conduct self-empowerment activities of teachers with the term self-empowerment which is the main key in efforts to improve professionalism in elementary schools. This research was conducted in Southeast Sulawesi Province in the Baubau City Primary School. The method in this research is descriptive qualitative using instruments in data collection. The results obtained from the study show that teacher self empowerment can provide positive results on increasing professionalism in learning activities at school, teachers will get new ideas and techniques about the teaching and learning process.

Keywords
Self Empowerment, Teacher Professionalism

Topic
Education

Link: https://ifory.id/abstract/PGd2wXTvFRVK

Corresponding Author
Pamela Hendra Heng

Institutions
Faculty of Psychology Universitas Tarumanagara, Jakarta

(a)rahmahh[at]fpsi.untar.ac.id;
(b*)pamelah[at]fpsi.untar.ac.id;
(c)naomis[at]fpsi.untar.ac.id

Abstract
One of factual condition is when observing changes in the attitude of nationalism that occurs in society. The role of nationalism and empathy has been examined from various research studies and representing a variety of perspectives. This study was conducted on 43 individuals who are at the stage of emerging adulthood age. This study uses two measuring instruments, heroism measurement tools, one of which is nationalism (Hastuti & Budiarto, 2015). Next, the empathy measurement tool was adapted from The Interpersonal Reactivity Index on the Emphatic Concern Scale dimension (Davis, 1980). The results of the analysis using the Spearman correlation, prove that there is a positive correlation between nationalism and empathy variables with a correlation score r = 0.491, p = 0.01 <0.05. That is, the higher nationalism in individuals shows the higher empathy in individuals. Empirical findings from this study that nationalism and empathy of the participants are classified as high.

Keywords
nationalism, empathy, emerging adulthood

Topic
Psychology

Link: https://ifory.id/abstract/ZXGMCvzHc2J8

Corresponding Author
Fatiatun Fatiatun

Institutions
1 Department of Physics Education, Faculty of Education and Teaching, Universitas Sains Al-Qur-an, Mojotengah, 56351, Wonosobo, Central Java, Indonesia
2 Department of Physics, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Tanjung Malim, 35900, Perak, Malaysia
3 Department of Physics, Faculty of Mathematics and Natural Science, Universitas Negeri Semarang, Sekaran, Gunungpati, 50229, Semarang, Indonesia
4 Department of Electrical Engineering, Faculty of Industrial Technology, Universitas Islam Sultan Agung, 50112, Semarang, Indonesia

Abstract
The fluorine-doped tin oxide (FTO) was utilized as a substrate in counter electrode (CE) fabrication using spray coating method. Hybrid of reduced graphene oxide (rGO) assisted by custom-made triple-tail sodium 1,4-bis(neopentyloxy)-3-(neopentyloxycarbonyl)-1,4-dioxobutane-2-silphonate (TC14) and commercially available single-tail sodium dodecyl sulphate (SDS) surfactants with multiwalled carbon nanotubes (CNTs) were developed as CE in dye sensitized solar cells (DSSCs) application. The rGO was fabricated by using reduction process from GO solution synthesized by electrochemical exfoliation method. During the reduction process, the reducing agent of hydrazine hydrate was used to reduce the oxygen functional group in synthesized GO solution. Hybrid of TC14-rGO and MWCNTs presented better structural and electrical properties than pure TC14-rGO. Higher electrical properties of TC14-rGO/MWCNTs hybrid was believed makes faster electron transport for the dye regeneration in DSCCs measurement. Therefore, the TC14-rGO/MWCNTs hybrid CE thin film showed suitable to be applied and developed in DSSCs application.

Keywords
Counter electrode, Triple-tail TC14 surfactant, Multiwalled carbon nanotubes, Reduced graphene oxide, Electrical properties

Topic
Physics

Link: https://ifory.id/abstract/vdgtu2T9nGPX

Corresponding Author
Agus Ulinuha

Institutions
a) Department of Electrical Engineering, Universitas Muhammadiyah Surakarta
A. Yani ST Pabelan, PO Box 1, Kartasura, Surakarta, 57102 Indonesia
* Agus.Ulinuha[at]ums.ac.id

Abstract
The voltage generated by solar photovoltaic depends on sunlight intensity. Since the direction of sunlight changes during a day, it causes changing of sunlight intensity leading to voltage reduction. To maintain the voltage, the panel must be directed so that it stays facing toward the sun to get maximum light intensity. The algorithm of Hill Climbing is employed to search the most optimal panel position that enables providing maximum voltage. This algorithm explores and saves the most optimal condition and updates it if new situation takes place. The algorithm is implemented in a Maximum Power Point Tracking (MPPT) system that continuously directs the panel to generate maximum voltage. An Arduino Microcontroller is employed to interpret the algorithm that instructs DC Motor to set the most optimal panel position. A set of current and voltage sensors are used to measure and provide feedbacks to the controller. The system is implemented on a 50 WP solar panel that enables providing higher voltage compared with that without MPPT. Since the microcontroller and actuator also consume power, this should also be taken into account. However, inclusion of this additional power still makes the system provide higher power compared with that without MPPT.

Keywords
Solar Photovoltai; MPPT; Hill Climbing; Optimisation

Topic
Electrical Engineering

Link: https://ifory.id/abstract/239bCgzKFXPp

Corresponding Author
Julius Galih Prima Negara

Institutions
(a) Master of Informatics Engineering
University of Atma Jaya Yogyakarta
Jl. Babarsari 44 Yogyakarta 55281, Indonesia
*galihprima21[at]gmail.com
(b) Master of Informatics Engineering
University of Atma Jaya Yogyakarta
Jl. Babarsari 44 Yogyakarta 55281, Indonesia

Abstract
The application of Enterprise Architecture (EA) in university is a long endeavor that must be carried out by higher education institutions. In the development of EA, challenges will be encountered even from the beginning when the initiative is raised. The solution to dealing with these challenges is good EA planning in accordance with the guiding model and making it a comprehensive view of the completion of an enterprise framework initiative. The harmony between the organizations business processes and information technology, and selection of the right EA framework will improve performance and will quickly make simple architectural development in future development in accordance with institutional needs. TOGAF ADM offers a comprehensive framework and is able to meet organizational needs related to information management needs. EA modeling in the academic process at Gunung Kidul University produced blueprints of business architecture, data, applications, and technology. In this paper several stages are written in accordance with the TOGAF ADM starting from preliminary, gap analysis at each architectural stage.

Keywords
Enterprise Architecture; Information Technology; Framework; TOGAF ADM

Topic
Information Engineering

Link: https://ifory.id/abstract/KpEkhX2aPL7y

Corresponding Author
Sugeng Eko Putro Widoyoko

Institutions
Universitas Muhammadiyah Purworejo

Abstract
Entrepreneurial capacity building for persons with disabilities not only has extraordinary results for individuals and their communities, but it is also important to provide social protection principles for them. Sustainability The program depends on a capacity building framework that is considered and thought ahead that, together with initial interventions, ensure that people can live their lives to the fullest of their abilities, are less dependent on service systems and take advantage of opportunities for social and economic empowerment of persons with disabilities . This paper discusses various approaches to developing entrepreneurial capacity for persons with disabilities and reviews the benefits of an entrepreneurial capacity building program through mentoring, role models, learning while doing, and being a member of a sustainable group where capacity is built by learning from people in the same position.

Keywords
disabilities, entrepreneurship, capacity building

Topic
Education

Link: https://ifory.id/abstract/gjE2yhzDHQeL

Corresponding Author
Juniono Raharjo

Institutions
(1)Centre of Excellence, Automotive Control & System
Institut Teknologi Sepuluh Nopember Surabaya

Abstract
Battery management system(BMS) is a main component in the battery pack system for electric vehicle(EV). The function of BMS is to monitor battery cells such as; cell voltage, cell temperature, current in the battery pack. Moreover BMS also able to balance the voltage of the cells so the different in voltage of the cells can be minimized. By having many of these function, BMS can identify battery health based on these parameters. With such important function,in this paper BMS were tested to determine its reliability. The standart testing for BMS reliability is Environment test. In the environment test, some things that are conducted in the environment test are initial temperature cycling, rapid temperature change, mechanical shock and mechanical vibration. From the environment test can be generated information to asses the quality of the BMS in accordance with its function. Furthermore it can reduce the cost to inspect every battery cells in the packs. With environment test as a basis for BMS reliability tester, hopefully good quality is obtained. Future development in BMS reliability testing can also conducted to improve the reliability.

Keywords
battery management system, battery cells health, standart environment test

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/xZNrCvqm7Rky

Corresponding Author
Ni Luh Putu Lilis Sinta Setiawati

Institutions
a) Industrial Engineering, Bandung Institute of Technology
Jalan Ganesha 10, Bandung 40132, Indonesia
*khoirul.mus[at]gmail.com

Abstract
Disability due to an amputated leg affect people in Indonesia, including those with low to middle income categories. To facilitate them, Yayasan Difabel Mandiri manufactures a low-cost flexible ankle prosthetic to fix the shortcomings of the rigid ankle prosthetics available in the market. This experimental study aimed to evaluate the use of flexible ankle prosthetic for daily activities. Seven disabled people simulated a walking task with or without a backpack loaded with 10% of body mass using two prosthetic types (i.e., flexible and rigid ankle). Measures were obtained to evaluate the performance of the prosthetic including the center of pressure (COP) indicating static and dynamic stability, gait deviation indicating walking efficiencies, and subjective ratings of prosthetic evaluation questionnaire (PEQ). Results showed a significant difference in walking efficiencies and dynamic stability (i.e., COP velocity) between the rigid and flexible ankle prosthetic foot with a better performance indicated by the flexible ankle. No differences were shown for the use of backpack. Flexible ankle further improves the quality of life of disabled people specified by 12.76% higher average rating of PEQ. In conclusion, flexible ankle potentially improves the design of the prosthetic foot to meet the need and comfort of disables.

Keywords
Low-cost, Prosthetic foot, Disabled people, Stability, Walking efficiencies

Topic
Industrial Engineering

Link: https://ifory.id/abstract/vP2LAcKRrgGu

Corresponding Author
Oesman Raliby Al manan

Institutions
Muhammadiyah Magelang University

Abstract
Indonesia is a country with very high potential for disasters, not even a few people live in disaster-prone areas. The threat of extreme natural hazards will not only cause damage to infrastructure, but also the loss of human lives. The high number of human fatalities is partly due to the low facilitation of services provided. This study aims to develop an ergonomic intervention model in mitigation to apply within the scope of disaster management, so that the number of casualties can be minimized. The method used in this study is Adaptation models based on Human Factor Engineering to improve situations that are not ideal and implement ergonomic interventions in mitigation. The results obtained through the study of Ergonomic Mitigation Model (Ergomitigation) are a facility design that is more accessible to disaster victims with special needs, thereby reducing the severity of the victims. The conclusion of this research study is that the risk and severity of fatalities can be reduced by providing adequate and easily accessible facilities in emergency situations.

Keywords
Ergomitigation, victim, accessibility

Topic
Industrial Engineering

Link: https://ifory.id/abstract/YQ2LZkWh7TtR

Corresponding Author
Andi Daramusseng

Institutions
a,b) Environmental Health Department, Faculty of Health and Pharmacy, Universitas Muhammadiyah Kalimantan Timur,
Jl. Ir.H.Juanda No. 15, Samarinda 75124,Indonesia
*andidaramusseng[at]umkt.ac.id

Abstract
Water is a basic need for human life and other living things that must be maintained so as not to degrade water quality. Rivers as the biggest water supplier are often unavoidable from pollution problems. Karang Mumus River is one example of a river that has pollution. River pollution is caused by the many activities of the community around the river so that increasing pollutants entering the river body. Communities in the area have limited access to clean water so they have no choice but to use river water for bathing, washing clothes and washing kitchen utensils. This is very worrying because it can cause health impacts on the community. The method in this research are observation, interview, and measurement of water samples. Water Sampling was taken for 8 points. The determination of sample points is based on potential sources of pollutants, which is densely populated areas. The results of measurement of Escherichia Coli in all water samples showed that the content of Escherichia Coli was the lowest <30 CFU / 100 ml and the highest was 2400 CFU / 100 ml. The content of Escherichia Coli in all water samples has exceeded the water quality standard for hygiene sanitation.

Keywords
Escherichia coli, River, Karang Mumus

Topic
Public Health

Link: https://ifory.id/abstract/aRxEFd7v4zbt

Corresponding Author
Purwono Hendradi

Institutions
Universitas Muhammadiyah Magelang

Abstract
E-learning systems have evolved with the rise of the Massive Open Online Course (MOOC) model and also the influence of Industry 4.0 in the world of education with the term era education 4.0. Both students and teachers/lecturers can organize and manage the learning process independently according to their needs. In the learning cycle in the e-learning system requires an assessment process to ensure learning achievement. Currently there are many assessment systems, but no one has used the essay model, because it is usually difficult to make corrections to score. In this research, an examination system with an essay model is proposed that can later be used to complement the e-learning system in the era of education 4.0, which is to adopt a plagiarism checker system by using the fuzzy method approach in automating score gives.

Keywords
essay exam, e-learning, plagiarism checker, fuzzy, scoring

Topic
Information Engineering

Link: https://ifory.id/abstract/zknFZT6uBVMa

Corresponding Author
Widarika Santi Hapsari

Institutions
Universitas Muhammadiyah Magelang

Abstract
Staphylococcus aureus is a bacterial pathogen that causes bacteremia and infections in several organs of the body as well as infections that are transmitted through medical equipment. In the case of bacterial infections, the data shows an increase in the amount of resistance and changes in the spectrum of disease. This study aims to evaluate the activity of the ethyl hexane fraction of landep leaves ethanol extract against Staphylococcus aureus bacteria. The method used is an experimental method where the ethyl hexane fraction of landep leaves ethanol extract was tested on 5 groups of mice at a dose of 0.3 mg /kg; 0.6 mg /kg; 1.2 mg /kg; 2.4 mg /kg and 4.8 mg /kg. We are using NaCl as a negative control group and Amoxicillin 500 mg/kg as positive control group. Intravenous fluids from mice that have been treated are cultured on agar media and counted bacterial colonies. The results showed that the fraction of landep leaves gave an antibacterial effect at a dose of 2.4 mg / kg BW and 4.8 mg / kg BW but it was not significant compared to Amoxicillin administration

Keywords
barleria prionitis L, antibacterial activity, fraction of barleria prionitis, staphylococus aureus

Topic
Pharmaceutical

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

Corresponding Author
Ida Widaningrum

Institutions
Universitas Muhammadiyah Ponorogo

Abstract
The unethical behavior of plagiarism acts has been a disgrace in the educational realm. Using the internet, people can easily find articles or documents that are fitted with their current works, and simply duplicate the sentences or paragraphs without doing the paraphrasing and giving the citation correctly. This action falls into the plagiarism. In order to minimize plagiarism act especially in the educational realm, it is necessary to develop the plagiarism detection application. The algorithm employed in the application plays an important role in obtaining the accurate result of plagiarism detection. To the best of our knowledge, there are three algorithms commonly used in the plagiarism detection applications, viz. Winnowing, Rabin Karp, and Knuth Morris Pratt algorithms which are used in our application. To specify the accuracy of each algorithm, the percentages of the plagiarism detection results are then compared to the result from the examination by a human expert. From our results, we found that the Winnowing algorithm exhibit the highest accuracy with only 1.19% difference to the examination by a human expert.

Keywords
Winnowing Algorithm, Rabin Karp Algorithm, Knuth Morris Pratt Algorithm, Plagiarism

Topic
Information Engineering

Link: https://ifory.id/abstract/7wjCVcZFxaA4

Corresponding Author
Emilya Ully Artha

Institutions
Universitas Muhammadiyah Magelang

Abstract
Muhammadiyah as one of the social organizations engaged in religious, social, education and health has a very strategic and important role in society. One of the assets managed by Muhammadiyah is waqf, the existence of waqf has become very strategic because besides being an Islamic philanthropic institution, waqf also plays an important role in providing endowment for the Ummah. Waqf which is managed by Muhammadiyah Regional Leadership (PDM) Magelang also has constraints that cause the power of the role of waqf to be limited. One of them is the majority of waqf is consumptive and in the form of land with minimal financial resources in its development. The main problem is the lack of fundraising of endowment funds. Currently only fundraising information system models have been made but it has not been investigated whether this information system can obtain economic value so that productivity can be increased in the management of waqf assets. The method used in this research is to use the HOT-FIT method which aims to see the relationship between Human, Organization and Technology of the Net Benefit (benefits or benefits) from the application of waqf fundraising information systems obtained from quantitative data collection in PDM Magelang.

Keywords
fundrising, waqf, information system, hot-fit, Muhammadiyah

Topic
Information Engineering

Link: https://ifory.id/abstract/T9b7AxqMVKgd

Corresponding Author
Esri Rusminingsih Rusminingsih

Institutions
Institute of Health Science Muhammadiyah Klaten
,Central Java. Indonesia

Abstract
Exclusive breast milk and milk Formula : How is the difference in the decrease in bilirubin after administration of phototherapy to neonates with hyperbilirubinemia? Esri Rusminingsih(a*), Romadhani T.P (a), Winarni (c), Marwanti (a), Ambar Winarti (a), Supardi (a), Chori Elsera (b) (a*) Departement of Medical Surgical Nursing,Institute of Health Science Muhammadiyah Klaten , Central Java. Indonesia Email : esrirusminingsih@yahoo.co.id (a) Departement of Medical Surgical Nursing,Institute of Health Science Muhammadiyah Klaten , Central Java. Indonesia (a) Departement of maternity Nursing,Institute of Health Science Muhammadiyah Klaten , Central Java. Indonesia. (c) Division of Neonatology, Muhammadiyah Hospital of Delanggu, Central Java, Indonesia Background: Increased hemolysis in neonates after birth increases the amount of unconjugated bilirubin. Low levels of glucoronyl transferase cause the baby cannot metabolize an increase in the load of unconjugated bilirubin resulting in hyperbilirubinemia. High levels of bilirubin can cause acute enchelopathy and in extreme conditions can cause Kern Jaundice. Hyperbilirubinemia in neonates requires medical treatment with phototherapy. Objective: To determine differences in bilirubin levels in neonates who received exclusive breastfeeding with neonates who received formula after phototherapy. Study design: This study used a retrospective study to look at changes in Total Serum Bilirubin (TSB) before and after phototherapy for 2 x 24 hours in neonates who exclusively breastfed and neonates with formula milk. Data was obtained from medical records during 2017. The number of samples was 23 neonates with ASI and 22 neonates with formula milk. Results: The results showed that the average age of the neonate was 5.22 days, the average TSB in neonates with ASI 17.01 mg / dl, and neonates with formula milk 16.22 mg / dl. After phototherapy, the average TSB in neonates with breast milk was 10.19 mg / dl, while neonates with formula milk 5.19 mg / dl. There were differences in TSB in neonates with breast milk and formula milk who received phototherapy (p <0.05). Conclusions: There was a significant reduction in TSB in exclusive breastfeeding neonates and neonates with formula milk. However, in neonates who received formula milk, a decrease in TSB was higher compared to neonates who exclusively breastfed. Keywords: Hyperbilirubinemia, Phototherapy, Total bilirubin serum, Exclusive breastfeeding, Formula milk, Neonates

Keywords
Hyperbilirubinemia, Phototherapy, Total bilirubin serum, Exclusive breastfeeding, Formula milk, Neonates

Topic
Health Science

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

Corresponding Author
naeila rifatil muna

Institutions
Department of Psychology, Padjadjaran University, Jl. Km.21 Jatinangor, Bandung, West Java, Indonesia.

naeila13001[at]mail.unpad.ac.id, ratna[at]unpad.ac.id, urip.purwono[at]gmail.com, jukesiregar[at]yahoo.co.id

Abstract
The purpose of this article is to understand the basic neuroanatomy of the brain and the executive function characteristics of children with Attention Deficit and Hipectivity Disorder (ADHD). Children with ADHD are children with complex developmental disorder. ADHD is a behavior abnormality commonly seen in childhood, it includes three core symptoms inattention, hyperactivity and impulsivity. Based on a neuropsychological approach, a disorder experienced by child with ADHD due to abnormalitiees in the struktur and biochemistry of the brain. The part of the brain associated with the executive function is the frontal lobe in prefrontal area, which includes dorsolateral prefrontal cortex, anterior cingulate cortex, orbitofrontal cortex. Impairment in the executive function process in the brain includes six areas of cognitive aspects, namely organizing, prioritizing, and activating for tasks; focusing,sustaining and selective effort, and shifting attention to tasks; regulating alertness, sustaining effort and processing speed; managing frustration and modulating emotions; utilizing working memory and acessing recall; monitoring and self regulating action.

Keywords
attention deficite and hiperactivity disorder, executive fuction, brain, neuropsychology

Topic
Psychology

Link: https://ifory.id/abstract/AJM7mtpG4Lfy

Corresponding Author
Wijaya Widjanarka Natasaputra

Institutions
Bina Patria Collage Magelang

Abstract
ABSTRACT The background of this research, initially, is wireless electrical energy transfer through air, something that seems impossible. Some researchers have attempted to discover several innovative methods to solve the issue. This research aims to create Wireless Energy Transfer, a wireless electrical energy transfer, a process in which electricity is transmitted from one place to another place, with long distance, without wires connecting. The media connecting are through electromagnetic wave or magnetic induction. Today, this system has been manifested which can be utilized to transfer power to supply electrical energy of household appliances, hand phone, and many others wirelessly. This research is an experiment of Wireless Energy Transfer which is applied in an electrical motorcycle. This research used experiment method. Here, the experiment was applied in an electrical motorcycle. The principle of inverter was tested on a basic circuit. The power supply utilized solar cell with 10 Watt, 20 Watt, and 50 Watt capacities and 12 Volts of voltage. This research generated 240 milliAmpere output. The process of the research and experiment are carried out continuously.

Keywords
solar cell, wireless electric energy transfer, electromagnetic field, electrical

Topic
Electrical Engineering

Link: https://ifory.id/abstract/ztwDY762nZ4a

Corresponding Author
Nuryosuwito Nuryosuwito

Institutions
(1)Department of Mechanical Engineering, Nusantsara PGRI University, Jl.KH. Achmad Dahlan No. 76, Mojoroto Kediri, Indonesia.
(2) Department of Mechanical and Industrial Engineering, Brawijaya University, Jalan MT.Haryono 167, Malang 65145, Indonesia
*Email : suwitounp[at]gmail.com

Abstract
Global plastic production has increased over the years due to the large number of plastic applications in many sectors. Continuous demand from plastics causes the accumulation of plastic waste in landfills to spend a lot of space contributing to environmental problems. Increased demand for plastics causes the release of petroleum as part of fossil fuels that are not renewable because plastics are petroleum-based materials. Therefore, in this study conducted a study of pyrolysis products from PET plastic waste materials using natural catalyst Klaten, Central Java, Indonesia. The result of pyrolysis process shows that PET plastic waste at 350ºC produces 160 ml. The highest catalyst alloy at highest temperature is 350ºC as much as 150 ml. PET plastic waste produces higher value product then plastic waste can be used as fuel alternative.

Keywords
Pyrolysis, PET plastic waste with natural catalyst

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/8GztCHFBgYL2

Corresponding Author
Arif Hidayat

Institutions
Universitas Muhammadiyah Metro

Abstract
This study aims to determine the ability of the brain in elementary school children. This type of research is experimental research. This application user is a class teacher once a primary school student facilitator. It is very natural for teachers to want their students to grow up to be healthy, intelligent, clear-minded, and noble children. Classroom learning by the teacher is like a thought process or in other words, is the process of using and using the brain optimally. The human brain consists of two parts, the right brain, and the left brain. Each hemisphere has specialized in certain abilities. The thinking process of the left brain is logical, sequential, linear, and rational. This side is very regular. Although based on reality, the left brain is able to carry out abstract and symbolic interpretations. The way of thinking is appropriate for regular tasks of verbal expression, writing, reading, auditory associations, placing details and facts, phonetics, and symbolic

Keywords
Expert System,Brain Capability Identification

Topic
Information Engineering

Link: https://ifory.id/abstract/7LkuWzUy42JM

Corresponding Author
DPPJ UMMagelang

Institutions
Prodi Pendidikan Sekolah Dasar, Universitas Muhammadiyah Magelang
*septiyandari[at]ummgl.ac.id

Abstract
The role of the school library as the heart are not fully understood by the school community. Low literacy skills possessed information librarian and the teacher becomes a primary consideration in doing this research. Therefore, the objective of the study was to assess the management of libraries in support of the Literacy Movement Schools. The benefits of this research so that school administrators do technical efforts to improve information literacy in the management of the library, by arranging the related programs and pustakwan increase teacher collaboration in order GLS optimal impact in fostering students interest. This research was conducted in the county Magelang with a number of research subjects Primary School 5 represents a balanced characteristics: type SD (private and public), has a Library and apply the GLS program. In this research instruments used were observation, interviews, and documentation. Methods of data processing using data reduction, data presentation and conclusion. While the validity of the data using triangulation data. The results showed that the first, synergy role perspustakaan with literacy movements carried out pragmatic that move and divide the book into every classroom through reading corner, a second, manual management of libraries SNP met by the school as a liability admininstrative, third-awareness information literacy of teachers and principals in the management of the library low and fourth GLS understanding of implementation guidelines by the school community is still limited to a single stage presentation of data and drawing conclusions. While the validity of the data using triangulation data. The results showed that the first, synergy role perspustakaan with literacy movements carried out pragmatic that move and divide the book into every classroom through reading corner, a second, manual management of libraries SNP met by the school as a liability admininstrative, third-awareness information literacy of teachers and principals in the management of the library low and fourth GLS understanding of implementation guidelines by the school community is still limited to a single stage presentation of data and drawing conclusions. While the validity of the data using triangulation data. The results showed that the first, synergy role perspustakaan with literacy movements carried out pragmatic that move and divide the book into every classroom through reading corner, a second, manual management of libraries SNP met by the school as a liability admininstrative, third-awareness information literacy of teachers and principals in the management of the library low and fourth GLS understanding of implementation guidelines by the school community is still limited to a single stage

Keywords
library management, GLS, Primary School

Topic
Education

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

Corresponding Author
Karina Putri Alamanda

Institutions
Universitas Muhammadiyah Kalimantan Timur

Abstract
Employee satisfaction was a major issue affected organizational goals through the performance and achievements of its employees. Job satisfaction also affects employee-s life satisfaction and vice versa. The purpose of this research was to find out the factors that influence job satisfaction and the design a program to increase job satisfaction. The data was collected by an interview and observation through purposive sampling selection techniques to 7 employees with high, medium and low levels of job satisfaction. The results indicate that work-it-self, leadership, coworkers, advancement, salary, working conditions, customer satisfaction and individual value was the factors that influence job satisfaction. Further, forms of job satisfaction were applied in four forms behavioral (exit, neglect, voice, and loyalty). Then, the program which can be applied was interpersonal communication skills training. Interpersonal communication skills were intended to support work changes that occur and improve relations between leaders and employees. The programs provide persuasion, openness and empathy in communication skills. By paying attention to employee satisfaction and managing it, had an impact on organizational objectives and related to psychological well-being of employees.

Keywords
Qualitative research, job satisfaction, academic employee, university

Topic
Psychology

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