Indonesia Conference Directory

Corresponding Author
Dhiyaul Helmi Ihsanti

Institutions
Chemical Engineering Laboratory, Department of Chemical Engineering, Faculty of Industrial Technology, Sepuluh Nopember Institute of Technology, Surabaya,60111, Indonesisa.

Abstract
Fischer-Tropsch synthesis is the process of converting hydrogen into liquid fuel through several stages, namely: polymerization of CO and H2 gases into long chain hydrocarbons. From the FT process that requires many of these steps, this research was carried out in order to be able to simplify the Fischer-Tropsch process through limited polymerization to obtain liquid fuels. By combining Co and Fe metal catalysts, it is expected to show better performance than the use of individual metals. Using a Fe-Co / HZSM-5 metal catalyst combination in a fixed bed reactor at a reaction temperature of 225oC. Fe-Co / HZSM-5 catalyst was made by wet impregnation, then Fe-Co/HZSM-5 catalyst was characterized using XRD, BET, and SEM-EDX. From the XRD results, the addition of Fe and Co did not change the crystal structure of the HZSM-5 catalyst. The surface area of the HZSM-5 was 526.03 m2/g and decreased after the addition of metal (Fe and Co) to the HZSM-5. This change indicates that Fe and Co particles were successfully dispersed on the surface of the HZSM-5 and inserted into the HZSM-5 pore. Hydrocarbon biofuel products are analyzed using GC-MS. The results of GC-MS hydrocarbon products showed the highest compounds for hydrocarbons C13 and C14 chains were 5.78% and 6.68% at 225 °C.

Keywords
Fischer-Tropsch, Fe-Co/HZSM-5, Hydrocarbon, Biofuel

Topic
Chemical Engineering

Link: https://ifory.id/abstract/ZUEbjgwQ2HaX

Corresponding Author
Alimuddin Alimuddin

Institutions
a) Department of Electrical,. University of Sultan Ageng Tirtayasa, I-CEFORY-Untirta
Jl. Jend Sudirman KM. 3 Cilegon 42435 - Indonesia
*alimuddin[at]untirta.ac.id
b) Department of Mechanical and Biosystem Engineering,. IPB University
Jl Darmaga Bogor, Indonesia
d) Department of Biology Education. University of Sultan Ageng Tirtayasa
Jl Raya Jakarta Km04, Pakupatan Serang, Indonesia
e) Department Agroecotechnology, University of Sultan Ageng Tirtayasa
Jl Raya Jakarta Km04, Pakupatan Serang, Indonesia

Abstract
The development of red chili cultivation has not been so good in the conventional way, namely farming, technology of modern cultivation systems is needed, namely microcontrollers - sensors, aeroponic systems and greenhouses, as well as observing environmental conditions including oxygen. To observe the condition of oxygen, it was necessary to experiment with integrated equipment of aeroponic and green house microcotrolers which were carried out for 3 trials in the morning, afternoon and evening. In the morning the data collection was carried out at 9:00 a.m. to 10:00 p.m. Figure 5 is the result of oxygen monitoring in the morning. The set point needed for oxygen is 15 to 20 ppm (Part Per Milion). On oxygen control less than 15 ppm, pure oxygen will be given, but if the oxygen level exceeds 20 ppm the fan will be wrong to reduce the oxygen gas content around the roots of the red chili plant.

Keywords
Monitoring System, Oxygen, Red Chili, Sensor,,Aeroponics, Green House

Topic
Electrical Engineering

Link: https://ifory.id/abstract/PZb6WQed2XND

Corresponding Author
dharmanto dharmanto

Institutions
Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia

Abstract
The comparison of porosity, oxygen and carbon concentrations in stainless steel powder particles produced from the conduit plasma atomization and the gas atomization will be discussed in this study. Where a conduit plasma atomizer can produce stainless steel particles with a more perfect spherical, there are no satellites attached to particles, but more pores than particles of stainless steel powder produced from gas atomization. On the other hand, porous stainless steel particles can be useful in making metal implants in orthopedic surgery. The modulus of elasticity and strength of stainless steel can be controlled using porous materials with various porosity to suit the strength and modulus of natural bone elasticity. SEM and EDS testing on a cross section of powder particles has been carried out to determine the characteristics of pores in 304 stainless steel powder particles. Pores of the stainless steel 304 powder particles from the gas atomization result in porosity percent, oxygen element weight percent and carbon weight percent, amounting to 6.61%, 7.4%, and 30.24% respectively, while pores on the stainless steel 304 powder particles from the conduit plasma atomization result in porosity percent, oxygen element weight percent and carbon weight percent amounting to 15.06%, 14.45%, and 28.07% respectively. So that the conduit plasma atomization is possible more suitable for producing particles with porous spherical metal powder as feed stock in metal injection molding applications compared to gas atomization.

Keywords
Porosity, Conduit Plasma atomizer, Gas Atomizer, Spherical particle, Stainless steel powder

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/TBn7vjRbQ8YF

Corresponding Author
Sugeng Triyono

Institutions
1) Department of Agricultural Engineering, College of Agriculture, University of Lampung, Bandar Lampung, Lampung Province, Indonesia
2) email: striyono2001[at]yahoo.com

Abstract
Abstract. This study aims to test three different storage tanks (mechanical cooler, Styrofoam box, and bucket) of nutrient solution to cultivate three Brassica vegetables (pak coi, mustard green, and kai lan) in a DFT system. Randomized Complete Block (RCB) used consisted of a single treatment with 3 levels (the three vegetables) and 3 blocks (the three containers). The parameters observed in this study included air (temperature and RH), nutrient solution (temperature, pH, EC, evapotranspiration), plant (height, number of leaves, plant weight, and ash content). Air temperature and relative humidity were recorded using a data logger with delay time of 15 minutes. Daily pH and EC of nutrient solution were measured by using a TDS and pH meter. Evaporation and plant height was measured by using a rule, number of leaves was counted, and the rest were measured gravimetrically at the harvest time. The results showed that temperatures of the nutrient solutions were minimum of 15C to maximum of 23-25C (stored in the mechanical cooler), minimum of 24C to maximum of 33-35C (stored in Styrofoam box), and minimum of 24C to maximum of 35C (stored in the bucket). The nutrient temperature in the cooler was practically lower than that in Styrofoam box and bare bucket. Crops cultivated with nutrient solution stored in the cooler were the best for some parameters observed, followed by the crops cultured with nutrient solution stored in Styrofoam, and the worst was crops cultured in the nutrient solution stored in the bucket. Shoot fresh weights of harvested vegetables were 148.18 g per plant from the cooler, 108.11 g per plant from the Styrofoam box and 85.07 g per plant from the bucket.

Keywords
kale, mustard, nutrient temperature, pakcoy

Topic
Land and water resources engineering

Link: https://ifory.id/abstract/hyAXZcteDjV9

Corresponding Author
Hanantyo Sri Nugroho

Institutions
Amikom Yogyakarta University
Government Equipment of Wukirsari Village, Sleman Regency, Special Province of Yogyakarta

Abstract
This article intends to provide an overview of public services in the digital era. Through a qualitative descriptive approach, this study discusses how the importance of building public trust, which apart from interacting directly or indirectly through social media. Therefore, digital-based public services are merely a medium to bring information closer to the public, but then it cannot be linear in driving community participation. The results of the study show that public services that prioritize the use of the public will build trust in the community. This can be seen from the existing data that there was an increasing trend in community participation, namely 11% in 2013, 18% in 2014, 81% in 2015, 92% in 2016, and 91% in 2017 since there have been digital-based public service innovations in the form of service for quoting a death certificate or lukadesi in 2012. The trend of increasing community participation is due to the emergence of the active role of the community in accessing the lukadesi program. Furthermore, increasing community participation is due to the opportunity to take advantage of digital-based public services, as well as the willingness and ability of the government to provide benefits from these digital-based public services. Meanwhile, this research was conducted at the Government of Wukirsari Village, Sleman Regency, Special Region of Yogyakarta. The recommendation of this study is the importance of the ability of the government to present benefits in public service innovation in the digital era, and the need for adjustments to public service innovations towards local wisdom that exist in society in the digital era.

Keywords
Digital Based Public Service, Community Active Role, Lukadesi Program

Topic
Digital Governance and Citizenship

Link: https://ifory.id/abstract/Ab4xhX8DZWj7

Corresponding Author
Nor Atiah Ismail

Institutions
Universiti Putra Malaysia

Abstract
Abstract This paper discuss on the uniqueness of traditional Rawa food namely Kelamai; one of the symbolic markers of community ethnicity in Gopeng Homestay, Perak. Kelamai is one of the Rawa-s classic dishes preserved by the community along with their native language, the Adet Bojojak ceremony and traditional dances. The Rawa ethnic minority retain some of their cultural traditions as symbols of their ethnic identity even though they have gone through a process of assimilation with the locals. Kelamai is part of Rawa signature cuisines and rarely been presented to the homestay guest, due to its tedious and complicated preparation of the ingredients and method of cooking. Thus, this study was conducted with the residents of Gopeng Homestay through qualitative research methods. Investigations include participant observations, interviews and the researcher-s field notes to understand the significance of this cultural food to the whole Rawa community in Gopeng. Findings of this study indicates that Kelamai is only famous and sought after by Rawa communities on special occasions such as Eid Mubarak and Eid Hajj. Indeed, the older generation admitted that not many of them persist in the cooking of this traditional food due to the lengthy preparation time required in addition to the insufficient help received from the family members. Hence, it is crucial for new generations of Malay Rawa in Gopeng and other parts of Malaysia to attend to this issue and ensure the continuity and safeguarding of Kelamai precious cultural tradition for the benefit of future generations.

Keywords
Kelamai, Perak Cultural Values, Cultural Tradition

Topic
Halal Food, Pharmaceutical, and Cosmetics Manufacturing

Link: https://ifory.id/abstract/vkpzHLQTyCY3

Corresponding Author
Soni Mulyawan Setiana

Institutions
Universitas Komputer Indonesia

Abstract
This study was aimed to describe the profile of Japanese Department Graduates in West Java which includes waiting period to get the first job, type of job, type of company where alumni work, Japanese Language Proficiency Test (JLPT) owned by graduates, and feedback given by alumni to the Japanese Department. This study used a descriptive evaluative method with a survey approach. Respondents in this study were graduates of the Japanese department and the head of the Japanese department from four private universities in Bandung, including Universitas Kristen Maranatha, Universitas Komputer Indonesia, Universitas Nasional Pasim, and STBA Yapari ABA. The results of this study are expected to be able to obtain comprehensive information about the profile of Japanese department graduates and feedback from alumni to improve the quality of graduates of the Japanese Department.

Keywords
Tracer Study, Japanese Department, Graduates

Topic
Digital Humanities

Link: https://ifory.id/abstract/kLMHDyfjm7zv

Corresponding Author
Nor Atiah Ismail

Institutions
Universiti Putra Malaysia

Abstract
Abstract This paper explores the uniqueness of Adet Bojojak as one of the traditional rituals and practices of Rawa community in Gopeng Homestay. Rawa community was initially migrated from Sulawesi, Indonesia and settled down in all across Malaysia. However, the majority of this population are well-known in Gopeng, the West Coast of Peninsular Malaysia. Interestingly, the present Rawa cultural practices are a mixture of Malay and Javanese influences when they married to the local people, culture and lifestyle. This study was conducted through the qualitative research using the participant observation, in-depth interviews and field notes with the residents of Gopeng Homestay. The study identified that the Adet Bojojak ceremony among the Rawa communities is slowly dying with their cultural traditions. Findings also reveal that some of the Rawa communities were struggling to maintain this ceremony, due to the current modernisation. Thus, efforts by the government and NGO-s should be increased in ensuring that this rituals and practices of Rawa remain standing in this homestay not only for the benefits of their future generation but thereby preserving the survival and viability of Adet Bojojak as exciting essential products of Gopeng Homestay.

Keywords
Adet Bojojak, Homestay,Cultural Tourism, Cultural Values, Cultural Tradition

Topic
Halal Lifestyle, Fashion, Travel and Tourism

Link: https://ifory.id/abstract/XbfAQMvWK78V

Corresponding Author
Sehatta Saragih

Institutions
1Fakultas Keguruan dan Ilmu Pendidikan, Universitas Riau, Pekanbaru Indonesia
2Sekolah Pascasarjana Universitas Pendidikan Indonesia

Abstract
This study aims to investigate the impact of applying an environment-based learning approach to the ability of elementary school students- number sense from three regions that describe the geographic topology of Riau Province, namely oil palm plantation areas, coastal areas, and watersheds. The research design used was Pree and Postest Group Design with a sample consisting of 2 elementary schools representing each region and the total number of students was 125 people. The research data was collected using by test and analyzed using descriptive and inferential statistics using a two-mean difference test. From the results of data analysis obtained by conclusions: (1) there is an increase in the number sense ability of students for each region with varying percentages; (2) overall students, there is an increase in the number sense ability of students with a significant amount of 14.9% after giving action. Based on the two results of this study, it can be concluded that the implementation of an environment-based learning approach contributes significantly to the improvement of students- number sense abilities.

Keywords
number sense ability, environment-based learning approach

Topic
Mathematics Education

Link: https://ifory.id/abstract/fd8UXuHcLNtR

Corresponding Author
Ni Made Sukartini

Institutions
Department of Economics, Faculty of Economics, Airlangga University

Abstract
This paper investigates the association of religiosity on social capital, especially social trust. Social trust is measured in eight indicators, is an important aspect of development process, since social trust related to many development outcomes, such as growth, democratic stability as well as subjective well- being. In economic terms, when people trust each other, transaction cost can be reduced, organization can performed better, government perform better and many more. Utilizing Indonesia Family Life Survey (IFLS) wave 2014 this study find the following results. Firstly, social trust closely associated with individual characteristics. Maturity, better educational and income level improve individual trust and individual participation in community activities. Secondly, individual subjective report about religiosity strongly associated with willingness to participate in various community activities. Policy relevant with this finding it is important to promote tolerance and religiosity, as these aspects can improve social trust. Social trust closely associates with more participation in community activities for accumulating public services and public goods. As more public services and public goods are available, nationally better welfare can be promoted

Keywords
IFLS, religiosity, trust, social capital

Topic
Sustainable Development

Link: https://ifory.id/abstract/a2NvFkYfuAe6

Corresponding Author
Farid Badruzzaman

Institutions
(a) Mathematics Department, Universitas Islam Bandung
Jalan Ranggamalela No. 1, Bandung 40116, Indonesia

(b) Dept. of Computer System Engineering, Universitas Tanjungpura
Jalan Jenderal Ahmad Yani, Pontianak 78115, Indonesia.

Abstract
The production process is the main problem in the production of raw materials into finished materials. The delay in settlement time will result in additional time and costs. In order to anticipate this situation, one of solution is to use network analysis. Network analysis described that the network must be run which is limited by time. The purpose of this study is to find out the network in a logical sequence, the right time to settle, and the opportunity to complete the production process of childrens Hijab, especially at the ABC Store Bandung Indonesia. The method used in this analysis is the PERT method. PERT is an analytical method designed to help in scheduling activities that must be carried out in a certain order.

Keywords
production process, veil, PERT method

Topic
Applied Mathematics

Link: https://ifory.id/abstract/6fdEP72RcXFh

Corresponding Author
Sri Iswati

Institutions
Universitas Airlangga

Abstract
This study aims to reveal the role of Financial Performance in the relationship between Sustainability Report and Value Company in Indonesia. The research population is a company going public on the Indonesia Stock Exchange that publishes a sustainability report. This study uses a quantitative approach. The sampling technique is purposive. The proxy value of the company is Q-Tobin. Proxy of Financial Performance is DER & ROE. Data processing uses Multiple Regression Analysis (MRA). The results showed that the relationship between Sustainability Report and Company Value was not significant without the role of DER and ROE. This means, significantly DER and ROE are true moderator variables. Although both variables are significant, the role of ROE is higher than that of DER. ROE is able to strengthen the relationship between Sustainability Report and Corporate Value of 82.70%, while DER strengthens the Sustainability Report relationship with the company value of 59.30%.

Keywords
Sustainability Report, Company Value, SRDI (Sustainability Reporting Disclosure Index, ROE (Return On Equity), DER (Debt to Equity Ratio)

Topic
Sustainability Reporting

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

Corresponding Author
Ferry Ferdianto

Institutions
Universitas Sswadaya Gunung Jati

Abstract
This study aims to identify learning Obstacle students in SPLTV material. this research is based on the findings of students who cannot answer or solve SPLTV problems related to daily life or contextual. The research method used in this study is a descriptive qualitative method with sampling using a purposive sampling technique. Identified Data from analyzing the results of student answers to the test questions SPLTV material in accordance with learning indicators and indicators of visualization ability. The results from this study are obstacles that often occur in students, namely 1) Learning Obstacle related to concepts in the material, and 2) related in linking a concept

Keywords
learning Obstacle, visualization ability, SPLTV

Topic
Mathematics Education

Link: https://ifory.id/abstract/VhefYmJ9gXER

Corresponding Author
A.A Gde Satia Utama

Institutions
a) Accounting Department, Faculty of Economic and Business, Airlangga University
Jalan Airlangga 4-6, Surabaya, 60286, Indonesia
*gde.agung[at]feb.unair.ac.id

b)Accounting Department, Faculty of Economic and Business, Airlangga University
Jalan Airlangga 4-6, Surabaya, 60286, Indonesia

Abstract
System of Environmental – Economic Accounting (SEEA) is a accounting information system that contain a framework for integrating economic and environment information from all resources so that can be used in the decision making process for corporation and government. Accounting information itself contains information about financial accounts and data from the corporation, that information could be used as consideration in the decision making process. SEEA divided into eight thematic areas, they are Agriculture, Forestry and Fisheries, Air Emissions Accounts, Energy, Environmental Activity Accounts, Ecosystem Accounts, Land Accounts, Material Flow Accounts, and Water. This research used qualitative with analysis system approach. This research-s purpose is to design a new system using SEEA to trace supply and use environmental asset of corporation especially Pt. Bakrie Sumatera Plantations using only its annual report and financial report. The result is that the supply and use of ecological asset information could be well integrated and more accessible to used in the decision making process

Keywords
Environmental Asset; System; Economic Accounting; SEEA

Topic
Enviromental Accounting

Link: https://ifory.id/abstract/VtrHbBLEm693

Corresponding Author
A.A Gde Satia Utama

Institutions
a) Accounting Department, Economics and Business Faculty, Airlangga University
Jalan Airlangga 4-6 Surabaya, 60286, Indonesia
* gde.agung[at]feb.unair.ac.id

b) Accounting Department, Economics and Business Faculty, Airlangga University
Jalan Airlangga 4-6 Surabaya, 60286, Indonesia

Abstract
This study aims to design a non-cash payment (e-money) system using B-CARD (Banyuwangi CARD) at tourism Website by Banyuwangi cultural and tourism service. This study uses the AIS (Accounting Information System) theory and electronic payment system (E-payment) theory. The purpose of B-CARD is as a method and payment system to be more effective and efficient. The research method use qualitative by interviews, observation and documentation. The analysis technique approach is input-process-output. The results of the study show that B-CARD can provide efficiency or saving time during tourist access transactions. In addition, B-CARD can also be used as a government effort to collect tourist fees for each tourist location with adjusted conditions. So that the B-CARD design can contribute to the effectiveness of local revenue and support green tourism sustainability in Banyuwangi.

Keywords
Effectiveness; Efficiency; B-CARD; Local Revenue; E-money

Topic
Sustainable Development

Link: https://ifory.id/abstract/y2nXTqWEjc7K

Corresponding Author
A.A Gde Satia Utama

Institutions
a) Accounting Department, Economics and Business Faculty, Airlangga University
Jalan Airlangga 4-6 Surabaya, 60286, Indonesia
* gde.agung[at]feb.unair.ac.id

b) Accounting Department, Economics and Business Faculty, Airlangga University
Jalan Airlangga 4-6 Surabaya, 60286, Indonesia

Abstract
The availability of water recently become an important issue in various parts of the world, including Indonesia. The threat of environmental pollution, limited water resources, excessive use by industry players and the development of nature-based tourism are very important to note. The writing of this article aims to evaluate the management of water availability both for individual consumption, industry and the agricultural sector. The object of this paper is Bali as a world tourist destination is also faced the problems with water resources. As is well known, the tourism sector also uses a lot of water resources for hotels, tourist attractions and nature-based tourism industries. The critical point of the issue is how the agricultural sector where subak as a Balinese agricultural irrigation system that is recognized as a world cultural heritage by UNESCO is able to compete in the use of water resources for irrigated rice fields and other agricultural sectors. The discussion model in this paper is descriptive and explores the local aspects of water resources management in Bali. The contribution of this paper is as a policy foundation for the tourism industry and the community to be wiser in managing water resources.

Keywords
Water Resources; Tourism; Subak; Management Systems; Bali

Topic
Natural Resources Management

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

Corresponding Author
Roy Setiawan

Institutions
a) Management Science Doctoral Program, Faculty of Economics and Business, Universitas Airlangga, Jalan Airlangga 4-6, Surabaya, Indonesia
* roy.setiawan-2017[at]feb.unair.ac.id
b) Sekolah Tinggi Ilmu Ekonomi Perbanas, Jalan Nginden Semolo 34-36, Surabaya, Indonesia

Abstract
In order to achieve the best performance and innovation , every organizations have to achieve its competitive advantage. The advantage which comes from the employee is the extra role behaviour (Organizational Citizenship Behaviour or OCB). As the requisite for it, the other supporting factors are needed. Those factors are Servant Leadership and Organizational Commitment. In this research, Organizational Commitment was significantly affect OCB, and Servant Leadership was not significantly affect OCB. But Servant Leadership could affect OCB, through Organizational Commitment as a intervening variable at the green campus context

Keywords
Servant Leadership, Organizational Commitment, Organizational Citizenship Behaviour

Topic
Environmental Awareness and Education

Link: https://ifory.id/abstract/B4qvGU6yeLcM

Corresponding Author
Bhre Wangsa Lenggana

Institutions
a) Faculty of Engineering, Universitas Sebelas Maret
Jl. Ir. Sutami 36A, Surakarta 57126, Indonesia
*ubaidillah_ft[at]staff.uns.ac.id
b) Faculty of Engineering, Universitas Andalas
Jl. Universitas Andalas, Kota Padang 25163, Indonesia

Abstract
This case study proposes the development of damping technology using intelligent materials as working fluids for landing gear of unmanned aerial vehicles (UAV) during the landing process. The intelligent materials to be used is magnetorheological fluids (MRF), a liquid that has variable viscosity to magnetic fields. This intelligent material can improve the performance of the damping device by allowing it to have variable damping feature through viscosity changing. The proposed UAV magnetorheological (MR) dampers design utilizes a magnetic valve that has an annular flow channel configuration with 0.5 mm gap size equipped with electromagnetic coil with adjustable current input. Both gap size and the current input selection affect the performance of the damping device. This study discusses the performance to reduce shock during landing process. The performance is evaluated by analyzing the pressure drop and damping force produced by the device with changes in the current input variation. The numerical and simulation results show that the damping characteristics of the device could be adjusted by changing the current input to the electromagnet. The obtained results are then adjusted based on the needs of the UAV in landing purpose. The study proved that the device performance is suitable to absorb shock during the landing process of the UAV.

Keywords
UAV, MR damper, MRF, vibration, damping device, landing process

Topic
Functional Materials

Link: https://ifory.id/abstract/tN839BJGn2YM

Corresponding Author
Muhamad Al Faruq Abdullah

Institutions
Universitas MercuBuana, Faculty of Economics and Business, Jakarta-Indonesia, alfaruq1602[at]gmail.com

Abstract
This study aims to discuss the effect of purchasing decisions online in the marketplace. The object of research is a seller who has a good reputation and significant transactions in selling in Bukalapak e-commerce. The independent variables obtained from the preliminary survey results to the buyer are the perception of price, service quality, and marketing communication. This study uses SEM data analysis techniques and data processing using PLS. The population is e-commerce bukalapak customers who shop at Farqi Cellular stores, with a sample of around 162 respondents. The results of testing the data using SmartPLS 3.0 software found that the perception of price has a positive relationship and no significant effect, service quality and marketing communication have a positive relationship and have a significant effect on online purchasing decisions. With the R-square value (R2) = 0.729 shows that the ability of the independent variable (perception of price, service quality, marketing communication) in explaining the dependent variable variance (online purchase decision) is 72.9%. While the remaining 27.1% is explained by other factors outside the model.

Keywords
e-commerce, price perception, service quality, marketing communication, online purchasing decisions.

Topic
Marketing Management

Link: https://ifory.id/abstract/gcMBkjHVL4RG

Corresponding Author
Tony Wijaya

Institutions
Universitas Negeri Yogyakarta

Abstract
Penelitian ini bertujuan untuk mengetahui perbedaan tingkat engagement berdasarkan tipe konten Instagram yaitu foto, video dan carousel. Penelitian bersifat ex post facto. Penelitian ini menggunakan data sekunder yaitu seluruh post pada akun perusahaan berbasis aplikasi smartphone yang paling populer di Indonesia sejumlah 18.026 post. Tingkat engagement diukur dengan nilai likes dan comments. Teknik sampling yang digunakan adalah purposive sampling dengan kriteria mengutamakan post yang baru daripada post yang lama dengan pertimbangan post yang baru cenderung memiliki engagement yang lebih tinggi sehingga data akan lebih mudah diamati. Teknik analisis data yang digunakan adalah ANOVA. Hasil penelitian menunjukkan terdapat perbedaan signifikan antara post foto dan post video ditinjau dari likes dan comments, tingkat engagement post foto lebih besar dibanding post video ditinjau dari likes dan comments, terdapat perbedaan siginifikan antara post foto dan post carousel ditinjau dari likes dan comments, tingkat engagement post foto lebih besar dibanding post carousel ditinjau dari likes dan comments, tidak terdapat perbedaan antara post carousel dan post video ditinjau dari likes maupun comments, post video dan post carousel memiliki tingkat engagement yang sama baik ditinjau dari likes maupun comments.

Keywords
engagement, likes, comments, foto, video, carousel

Topic
Manajemen Pemasaran

Link: https://ifory.id/abstract/zpQk6AyjVLZh

Corresponding Author
Albertus Tuhu Setyo Nugroho

Institutions
Universitas Negeri Yogyakarta

Abstract
Penelitian ini bertujuan untuk menganalisis hasil penelitian tentang penggunaan metode GASING (Gampang, Asyik, dan Menyenangkan) terhadap hasil belajar fisika. Pada penelitian ini data dikumpulkan dengan metode observasi terhadap komponen-komponen yang akan diteliti. Sedangkan teknis analisis data menggunakan metode statistik deskriptif. Berdasarkan hasil analisis didapat 7 (tujuh) hasil penelitian yang sesuai dengan kriteria yang telah ditentukan dan berdasarkan analisis didapat bahwa penggunaan metode GASING (gampang, asyik, dan menyenangkan) berpengaruh terhadap hasil belajar fisika

Keywords
Metode GASING, Hasil Belajar, Pembelajaran

Topic
Pembelajaran

Link: https://ifory.id/abstract/JB6wbvazjMFd

Corresponding Author
Rina Hidayati Pratiwi

Institutions
Pendidikan MIPA, Pendidikan Biologi, UNINDRA

Abstract
The use of medicinal plants to overcome diseases has been used since ancient times because in these plants contain secondary metabolites which can be used as medicine. The aim of this research is to observe the anatomical structure or form and the secretory cell density of secondary metabolite compound in the form of bioactive compounds. The sample used are Chromolaena odorata, Anredera cordifolia, Adenanthera pavonina, Vernonia amygdalina, Psidium guajava, Syzygium polyanthum, Piper ornatum, Zingiber officinale, dan Curcuma longa. Observation of anatomical structure of leaves was done by making paradermal and transversal sections, while observation of anatomical structure of rhizomes were performed by making transversal sections. Observations consisting of leaf anatomical structure of cells of the epidermis, the stomata and the secretory cells per unit area in the leaf and rhizome of nine tropical medicinal plants. The medicinal plants containing some of the secondary metabolite compounds. Microscopic observation found several types of secretory structure in leaves and rhizomes observed oil cavity cells were found in Syzygium polyanthum leaves, Psidium guajava leaves, Piper ornatum leaves, Anredera cordifolia leaves, and Zingiber officinale rhizomes. In Zingiber officinale and Curcuma longa rhizomes, they were found the idioblast cells which contained starch grains. In addition, there were found another form of secretory cells in Chromolaena odorata, Adenanthera pavonina, and Vernonia amygdalina. In epidermal cell, it showed the anatomy of stomata type from the leaf of medicinal plant are anomocytic stomata type, tertracytic type and cyclocytic type.

Keywords
medicinal plant, secretory cell, stomata

Topic
Botany

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

Corresponding Author
Nilawati Nilawati

Institutions
a) Biology Education
Postgraduate Program
Universitas Negeri Medan

b) Biology Education
Postgraduate Program
Universitas Negeri Medan

c) Biology Education
Postgraduate Program
Universitas Negeri Medan

Abstract
Descriptive of this study aimed to analyze the competencies of science / biology junior high school teachers who have passed certification in Aceh Tamiang Regency. The population and sample in this study were 58 science / biology junior high school teachers who had passed certification from all junior high schools in Aceh Tamiang Regency. The research instruments used consisted of learning observation sheets, tests and questionnaires. The data analysis technique in this study was conducted in quantitative descriptive. The results showed that the pedagogic competencies of science / biology teachers in Aceh Tamiang had a good category with the highest percentage of communication aspects with students (84.70%), while the lowest percentage was in the aspects of mastering learning theory and educational learning principles (79.86%). The results for the professional competence of teachers in the ability to solve the problem, the highest percentage in the aspect of understanding the nature of Science / Biology as a science and describing the object of the problem of Biology through the scientific method (65.3%). While the lowest percentage is in the aspect of explaining the principles of biotechnology, the application of biotechnology, the use of biotechnology in the application of food biotechnology for human life (52%).

Keywords
Pedagogic Competence; Professional Competence; Science / Biology Teachers; Certification

Topic
Teachers Education Model in Future

Link: https://ifory.id/abstract/ev2UxnTVH3GL

Corresponding Author
Januarita Ginting

Institutions
(a) Physics Education Program Postgraduate of Universitas Negeri Medan, Medan Indonesia
*januaritaginting[at]gmail.com

Abstract
This research aims to develop the objective test of conceptual knowledge on physics topic heat and temperature in Senior High School which fulfills the required qualifications (standard test) consisting of validity, reliability, level of difficulty, discrimination power, and distractor effectiveness. This research is developmental research using Borg and Gall research method development. In analyzing the data, the research used qualitative and quantitative techniques. The research result considered from qualitative analysis, the questions quality of the conceptual knowledge test is very good with 93% ideality. While from the quantitative analysis, the questions quality of the conceptual knowledge test is good. By analyzing the 75 items of the conceptual knowledge test, it was found that there were 72 approved items and 3 rejected questions. On the large group test, there were (1) 68 valid items (94.4%) and 4 invalid items (5.6%); (2) 0.950 as the good reliability of items; (3) based on the difficulty level, 3 easy items (4.2%), 63 average items (87.5%), and 6 difficult items (8.3%); (4) based on the discrimination power, 39 excellent items (54.2%), 28 good items (38.8%), 3 average items (4.2%), and 2 bad items (2.8%); 5) based on the distractor effectiveness, 68 effective items (94.4%) and 4 ineffective items (5.6%). Therefore, for the good quality items of conceptual knowledge, it was achieved that there were 65 approved items (90.2%), 3 revised items (4.2%), and 4 rejected items (5.6%).

Keywords
Conceptual Knowledge Test, Temperature and Heat, Validity, Reliability

Topic
Mathematics,Science and Nursing Education

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

Corresponding Author
Hestika Dewi Sitepu

Institutions
Program Pascasarjana Pendidikan Dasar Universitas Negeri Medan

Abstract
This research is motivated by the availability of textbooks which are not in accordance with the needs and circumstances of the childs living environment. Therefore, the introduction of science learning for early learners has not been applied optimally. The objectives of this study are: 1) to find out the level of decency in using a developing fun experiment based science textbooks for early learners (5-6 years old), 2) to find out the effectiveness of developing textbooks in improving cognitive abilities for children aged 5-6 years old. The subject in this study were group B students (amount of 36) in TK Islam Terpadu MTTQ School Kutalimbaru, academic year 2018-2019. The type of this research is Research and Development (R & D). The development of textbooks is based on a research on the development of 4-D (Four D Models) in accordance to Thiagarajan which includes 4 stages which are, defining stage, designing, developing, and disseminating. The results of the study showed that (1) the level of decency of the fun experiment-based science textbooks based on: a) the results of validation on the contents of the developing textbooks based on the material expert has been listed as Very Good. B) practical results from the teachers stating that all the teachers need a fun experiment based textbooks in the learning process because the book provided is not only for students but it also offers guides in form of teacher books. (2) the effectiveness of the developing textbooks showed that childrens cognitive skills after using the fun experiment based textbooks are higher than using only magazines and posters as learning material.The inital average score of the children were 50 and the final test result increases to 75.50. This proves that there has been an improvement in childrens score for cognitive development by 25.50.

Keywords
Textbooks; Experiment-based; Cognitive Ability

Topic
Curriculum, Research and Development

Link: https://ifory.id/abstract/Z3j7LXFAwpQ6

Corresponding Author
Budiono Hardjono

Institutions
Faculty of Economics and Business,
Universitas Binawan
Jl. Dewi Sartika- Jl. Kalibata Raya
Jakarta Timur 13630, Indonesia

Abstract
Abstract Customer purchase preferences refer to certain characteristics any consumer wants to have in a good or service to make it preferable to him/her. This could be the level of happiness, degree of satisfaction, utility from the product or service. Due to the development of digital communication, e-WoM has an important role in influencing this customer preference especially when customers need to decide what gadgets products should be bought. This research tries to analyse the implication of e-WoM components such as interpersonal ties, homophily and source credibility indirectly to the customer purchase decision through customer purchase preference of the electronic gadgets products. By using around 103 simple random samples taken from gadget users and enthusiasts around Jakarta, the data were analyzed using descriptive, correlational and multi regression statistics with the help of SPSS software. Result showed that only the source of credibility had an impact indirectly on customer purchase decision through customer preference, while the source of credibility itself also had an impact directly and partially to the consumer purchase decision of electronic gadgets products. Since electronic gadget to be more unusually or cleverly designed than normal technology at the time of their invention, so this research could be not valid for the conventional consumer products, therefore other research need to be reconfirmed whether the e-WoM has the similar influence to its purchase decision.

Keywords
E-WoM, customer preference,customer purchase decision, inter-personal ties, homophily, spource of credibilty,gadget.

Topic
Management

Link: https://ifory.id/abstract/AXUxLZj2tzRY

Corresponding Author
Nina Oktarina

Institutions
Universitas Negeri Semarang

Abstract
The study examined and analyzed empirically the influence of innovation toward the marketing performance on micro, small and medium enterprises of convection in Semarang City. Based on the research gap of the research results about the influence of entrepreneurial networking toward the marketing performance; we got a proposition that business superiority was the ability of a business to give more values than competitors; such as developing the product quality, creating more varied products, providing better services, creating customer loyalty, and determining the competitive selling price with the cooperative spirit which was beneficial and useful. The business superiority potentially improved the marketing performance. The underlying theories of the study were the social capital theory, the competitive advantage theory, and the organizational and dynamic capability approach. The population of the study was the micro, small and medium enterprises of convection in Semarang City. There were 100 respondents as the samples of the incidental sampling.The respondents were the owners / managers of convection enterprises; the samples were prioritized for enterprises which belonged to the characteristics of the cluster target program at the Office of Industry and Trade in Semarang city. The data were analyzed by multy Regrecation. The results of the study showed that generally the marketing performance through the innovation include calture innovation, technice innovation, product innovation, and administration innovation. Then; it issuggested that the marketing performance isnecessary to be built and developed on the micro, small and medium enterprises of convection.

Keywords
Innovation; Marketing Performance; Enterprises of convection

Topic
Management

Link: https://ifory.id/abstract/ehujKYFcHAQ9

Corresponding Author
Bayu Wiratama

Institutions
Universitas Negeri Semarang

Abstract
Customer loyalty in tourism sector is related to the willingness of tourists to be loyal and to revisit in the future. There are many factors affecting customer loyalty such as experiential marketing, facility, accessibility dan perceived value. However there are several research claiming otherwise. The aim of this research is to examine the direct and indirect effect of experiential marketing, facility, and accessibility on customer loyalty with perceived value as intervening variable. The population of this research is the tourists of Umbul Ponggok tourist object in Klaten Regency.The sample used is 116 respondents by purposive sampling. The data collecting method is using questionnaires analyzed by path analysis which uses variables of experiential marketing, facility, accessibility, perceived value, and customer loyalty.

Keywords
experiential marketing, facility, accessibility, perceived value, customer loyalty

Topic
Management

Link: https://ifory.id/abstract/jp3Cv7nmJMbe

Corresponding Author
Khalifah Muhamad Ali

Institutions
a) Department of Islamic Economics, Faculty of Economics and Management, IPB University, Bogor, Indonesia
*khalifahma[at]apps.ipb.ac.id
b) Department of Landscape Architecture, Faculty of Agriculture, IPB University, Bogor, Indonesia
c) Institute of Islamic Banking and Finance, International Islamic University of Malaysia, Gombak, Malaysia

Abstract
Poverty and equality are two major problems of developing countries, including Indonesia. Zakat is one of the obligatory act in Islamic teaching, specifically the third of ‘Rukun Islam-. Zakat is the act of giving out certain amount of someone-s wealth that meets several conditions. Per 31 December 2015, the potential of zakat in Indonesia was recorded to be 286 trillion rupiahs, while the actual amount of collected zakat was recorded to be only 3.75 trilion rupiahs. This fact shows that zakat management has not been optimally done. The objective of this study is to assess and evaluate the performance of zakat management including the contribution of government, contribution of society, zakat institution performance, and the impact of zakat on the society-s prosperity in Kotabaru Regency, South Borneo. This study was done by using survey method through questionnaire-interview. Sampling technique that was used was purposive sampling method. The analysis tools that was used in this study was National Zakat Index (ZNI) with the Multi-Stage Weighted Index assessment method. The result of the study showed that zakat management performance in Kotabaru Regency, South Borneo was considered to be good with the index value 0.66.

Keywords
National Zakat Index (ZNI), poverty, zakat management performance

Topic
Islamic Philantrophy

Link: https://ifory.id/abstract/mrFHCy8Pp6DZ

Corresponding Author
Mauizhotul Hasanah

Institutions
(a) Economic and Business of Faculty, Airlangga University, hasanahidzoh[at]gmail.com*
(b) Economic and Business of Faculty, Airlangga University,
siti-z[at]feb.unair.ac.id

Abstract
The financial sector in a region can spur the pace of economic movements, especially with the contribution of banks in the micro sector as an intermediary tool in channeling funds to productive investments that encourage the real sector, especially in the micro sector, which will produce aggregate output. The purpose of this study is to analyze the extent of the Islamic Peoples Financing Bank (BPRS), which is an Islamic microfinance institution for the economy on the island of Java. This study uses secondary data during the period January 2016 to December 2018. This study uses the Ordinary Least Square Data Panel method. Empirical results show that partially of Total Assets does not have a significant positive effect on GDRB. While the total financing, Third Party Funds (TPF), the number of BPRS partially has a positive and significant effect on GDRB. In addition, simultaneously the overall independent variables together have a significantly positive effect on GDRB

Keywords
BPRS, Regional Economy, Java Island

Topic
Islamic Micro finance

Link: https://ifory.id/abstract/BDY6cxGWFXQM