Indonesia Conference Directory

Corresponding Author
Satria Bijaksana

Institutions
Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132, Indonesia

Abstract
Magnetic anisotropy, particularly in the form of AMS (anisotropy of magnetic susceptibility) has been used widely for petrofabric and structural studies. It is still a popular technique in wide range of applications due to its high sensitivity as well as for its cost and time effectiveness. The technique has also been modified into various methods termed collectively as anisotropy of magnetic remanence (ARM), while the remanence could be either anhysteretic or isothermal remanences. Notable use of these methods include compaction study in sediment as well as study of flow in lavas. The variation of magnetic anisotropy methods will be compared and reviewed. New findings on the nature of magnetic anisotropy in soft and hard rocks will also be presented. This includes the the incorporation of pore distribution analyses into magnetic anisotropy studies.

Keywords
Magnetic anisotropy, sediment compaction, lava flow, pore distribution

Topic
Rock Magnetism

Link: https://ifory.id/abstract/Bqgp8GvxYL3j

Corresponding Author
Arkas Viddy

Institutions
a. Politeknik Negeri Samarinda
b. Politeknik Negeri Nunukan

Abstract
The research objectives are to create and to analyze the influence of economic risk, interest rate, and exchange rate on Indonesian non oil export and its implications for Indonesian economic growth. The are several variables are used such as economic risk, interest rates, and exchange rates as independent variables, while non oil exports and gross domestic product as dependent variables; the time series data will be taken from 1999 to 2018. The structural model path analysis is used and Partial Least Square software is used for analizing the data. The result proved that the economic risk, interest rate, and exchange rate have a significant influence on and non oil export. Another result is economic risk, exchange rate, exports have a significant influence on gross domestic product in Indonesia.

Keywords
economic risk, interest rate, exchange rate, export, and gross domestic product

Topic
Economics

Link: https://ifory.id/abstract/kaDyQGjhgP6m

Corresponding Author
Fenny Novita Meysabed Sianturi

Institutions
(a)Civil Engineering Department, State Polytechnic of Bandung,Bandung 40012, Indonesia

Abstract
Porous asphalt uses open-graded with a higher percentage of coarse aggregate than fine aggregate. Porous asphalt has low stability. One of the ways to used to improve the stability of porous asphalt mixture is adding gilsonite as an additive, which aims to improve the quality of asphalt. The use of concrete waste as coarse aggregate can also increase the stability of the mixture. In this study will use concrete waste as coarse aggregate and adding gilsonite as an additive. The proportions of regular coarse aggregates and concrete wastes are 0/100, 25/75, 50/50, and 100/0. The additive used is gilsonite, with gilsonite variations of 5.5%, 6.5%, 7.5%, and 8.5%. The goal of this step was to obtain the optimum asphalt content, optimum concrete waste proportion and optimum gilsonite content. Once the optimum asphalt content, optimum concrete waste and optimum gilsonite content are determined, the related Marshall characteristics could be determined. Based on the testing result, optimal asphalt content is 5.13%, the proportion of optimum concrete waste is 100%, and optimum gilsonite content is 8.5%. The use of 100% concrete waste and adding Gilsonite additive at ranges 8.5% improves the Marshall characteristic, particularly its stability.

Keywords
Porous Asphalt; Concrete Waste; Gilsonite; Marshall

Topic
Civil Engineering

Link: https://ifory.id/abstract/kTbhK3wm6J2N

Corresponding Author
Kholid Fathoni

Institutions
Politeknik Elektronika Negeri Surabaya

Abstract
Sunan Ampel is a religious figure and one of the legendary members of Walisongo in Surabaya even on Java. The history of Sunan Ampel is rarely known by the public or even very little information is known about him. This is because the existing references are still limited, difficult to obtain and not interactive. Therefore we need media that can describe the history of Sunan Ampel interactively and not based on textbooks. This can be overcome by developing game-based Sunan Ampel historical applications. This game is built with two-dimensional characters and the genre of Role Playing Game. There are 3 phases in the history game Sunan Ampel, namely: the phase in Wonokromo, the phase in Yellow Flower, and the phase in Ampel. Some NPCs are involved such as some wild animals, residents, Kibang Kuning and Prabu Brawijaya. The blackbox testing of interface and game design results show that all game features are running well on desktop platforms and the games storyline has illustrated some of the history of Sunan Ampel.

Keywords
History of Sunan Ampel, Surabaya, Game Applications, Role Playing Games, Desktop Platform

Topic
Computer Science and Engineering

Link: https://ifory.id/abstract/98g6GrMYFDmA

Corresponding Author
Anggita Hafsari

Institutions
Departement Biology, Faculty of Science and Technology, UIN Sunan Gunung Djati Bandung. Jl. AH. Nasution No 105 Bandung, 40614

Abstract
The purpose of this research was to obtain information about the best quality of bioplastic fruit packed using kombucha cellulose which grow in green tea media (Camellia sinensis L.). This research was carried out with a trial method of Completely Randomized Design (CRD) 5 arrangements with 4 replications and a total sample of 20. By administering 1%, 2%, 3%, 4% and 5% glycerol. The statistical analysis used is Analysis of One-way Variance (ANOVA). The characteristics of Bioplastic packaging from kombucha cellulose with the approval of glycerol concentrations of 1%-5% (v / v) produced a combined average mean value of 0.015 mm, 0.02 mm , 0.025 mm, 0.027 mm and 0.045 mm. The tensile strength values obtained were 7.22 N / mm2, 3.27 N / mm2, 2.17 N / mm2, 1.80 N / mm2 and 2.15 N / mm2. The highest percent value was 73%,. While the highest solubility values were 50%. Application of kombucha cellulose as a bioplastic packaging in tomato fruit is acceptable as an alternative packaging fruit biodegradable material for fruit.

Keywords
Bioplastic Packaging Fruit, Kombucha Celullose, Camellia sinensis L.Biodegradable

Topic
Biology

Link: https://ifory.id/abstract/E3zhRXuwUGV8

Corresponding Author
Anggita Hafsari

Institutions
Departement Biologi, Faculty of Science dan Technology, UIN Sunan Gunung Djati Bandung, Jl. A.H. Nasution No.105 Bandung. Cipadung, Cibiru, Kota Bandung, Jawa Barat 40614, Indonesia

Abstract
The purpose of this research is to determine the the best media form different seeds media for the growth of pink oyster mushroom mycelium (Pleurotus flabellatus) and the secondary metabolite composition as anti-tumor drugs. The method used was the experimental research method, one factorial Completely Randomized Design with four treatments on different seeds sources in solid and liquid media. To determine the best media we compare the weight of biomass and the secondary metabolites composition. The results showed that the growth of corn media diameter had the fastest growth rate of 86% and 82% control, 61% significantly different in soybeans and 63% in green beans. Biomass results show that the most effective media to obtain biomass is that the green beans have a weight of 26 mg and corn 25.6 mg, while potatoes are 14.7 mg and soybeans 5.9 mg. All carbohydrates media can be used as a medium for the growth of pink oyster mushroom mycelium. The secondary metabolites detected were alkaloids and saponins, while steroids and tannins were not detected in all samples, so pink oyster mushrooms have the potential to have antitumor content.

Keywords
Pink Oyster Mushroom, Pleurotus flabellatus, Metabolites Secondary, Antitumor

Topic
Biology

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

Corresponding Author
Lina Anatan

Institutions
Universitas Kristen Maranatha Bandung

Abstract
Revolusi industri 4.0 menjadi topik pembahasan penting dalam WEF (World Economic Forum) Annual Meeting di Swiss pada 2016 lalu. Revolusi yang terjadi merujuk pada teknologi artificial, alat-alat otomatis dan internet of things (IoT) telah mengubah pola hidup, pola kerja dan interaksi manusia. Kondisi ini membawa dampak signifikan dalam segala aspek kehidupan manusia, khususnya pelaku bisnis dan tak terkecuali usaha mikro kecil dan menengah (UMKM). Artikel ini membahas telaah literatur tentang peran transfer pengetahuan dalam meningkatkan kesiapan UMKM khususnya di Indonesia dalam merespon revolusi industri 4.0. Pembahasan akan dimulai dengan pemahaman revolusi industri 4.0 dan strategi Making Indonesia 4.0 yang telah dicanangkan oleh Pemerintah Indonesia sebagai suatu peta jalan yang terintegrasi untuk mengimplementasikan strategi bersaing yang telah dikembangkan. Pembahasan selanjutnya memfokuskan pada tantangan dan peluang yang dihadapi dan bagaimana kesiapan UMKM Indonesia yang di dalamnya membahas contoh kasus permasalahan yang dihadapi pengrajin Batik. Sebagai penutup akan didiskusikan bagaimana transfer pengetahuan dapat meningkatkan kesiapan dan daya saing UMKM dalam Industri 4.0.

Keywords
Revolusi Industri 4.0, Making Indonesia 4.0, UMKM

Topic
Manajemen Strategi

Link: https://ifory.id/abstract/qRBM7KZtfVku

Corresponding Author
Lena Ellitan

Institutions
Widya Mandala Catholic University Surabaya

Abstract
ABSTRACT In a competitive environment, the company is required to follow the strategies of its competitors. In order for information about competitors to be obtained quickly and then disseminated throughout the organization, the implementation of e-business needs to be done to support the creation of competitive advantage. The formulation of the problem in this study are as follows: (1). Is there any effect of knowledge management capability on e-business adoption in Medium-sized Enterprises in East Java? (2). Is there any effect of technology readiness on e-business adoption in Medium-sized Enterprises in East Java? (3). Is there an influence of the environmental context on e-business adoption in Medium-sized Enterprises in East Java? The design in this study is quantitative research. The design of quantitative research is done through the distribution of questionnaires to certain respondents according to the specified criteria. The quantitative research design used is causal research which is explanatory research. Causal research is research that aims to test the research hypotheses that are determined based on literature to answer the research problem formulation. The test results of the influence of the implementation of management practices on the performance of the company indicate that: (1). Simultaneously, shows that knowledge management technology readiness and envirimnetal context have a significant influence on e-business adoption. (2). Partially, it can be concluded that variable knowledge, variable technology readiness and environmental variables have a significant influence on e-business adoption. Based on this research, it can then be carried out further on the exploration of the types of e commerce used by MSME actors, and focusing on Small and Medium Enterprises (SMEs) who have adopted E Commerce in more complex forms. and e-business.

Keywords
Key words: Knowledge Management, technology readiness, environment context,

Topic
Kewirausahaan Dan Inovasi Bisnis

Link: https://ifory.id/abstract/t2JZwqEGy9TB

Corresponding Author
Fridawaty Rivai

Institutions
Hospital Management Departement of Public Health Faculty, Hasanuddin University

Abstract
This study aimed to compare the patient experiences of inpatient unit at Makassar District Hospital and Haji Regional Hospital. This research was a cross sectional study with descriptive approach. The study involved 118 respondents in Makassar General Hospital and 120 respondents in Haji Regional Hospital. The results showed that among 12 dimensions of patient experience, patients in Makassar district hospital had good experiences in 6 dimensions (information and communication, convenient environmental, medicine management, employee availability, respecting patient-s experience, and service assistance) and patients in Haji regional hospital experienced good service in 6 dimensions of patient experience (waiting time, emotional support, pain management, trust inservice providers, perceived nutrition care, and family and friend involvement). Both of the hospitals have the same number of good experience dimensions. The study recommended the hospital to make improvements in terms of the quality of service by paying attention to other dimensions.

Keywords
Inpatient Unit; Patient experience; Public Hospital

Topic
Quality, Safety and Service

Link: https://ifory.id/abstract/3WmcXfxRV7tr

Corresponding Author
Rika SEKINE

Institutions
Department of Chemistry, Faculty of Science, Shizuoka University
836 Ohya, Shizuoka, 422-8529, Japan

Abstract
Structure and stability of the gold cluster ions of which skeleton are synthesized as a complex was analyzed using the Hückel method based on graph theory. Hückel Energy (HE) and Topological Resonance Energy (TRE) were determined for neutral, positive ion, and negative ion clusters, where all the isomers of the gold cluster up to octamer were considered. Since some graphically designed isomers include bonds that can not be realized in three-dimensional space, the screening was carried out by a molecular force field calculation with LAMMPS (lammps.sandia.gov/.). Among the isomers thus obtained, both HE and TRE were most stable when the tetramer was Au_4^{2+} with a tetrahedral structure, and with the hexamer, Au_6^{2+} with two tetrahedrons sharing one side. The complexes with these structures have actually been synthesized. On the other hand, there is no reported synthetic example of the most stable cluster of octamer Au8 with TRE and HE.

Keywords
Graph Theory, Hückel method, Gold Cluster

Topic
DV-Xa Method

Link: https://ifory.id/abstract/43NxJGtwh9rm

Corresponding Author
Afifa Husna

Institutions
National Pingtung University of Science and Technology

Abstract
Background: Clostridium acetobutylicum is an anaerobic Gram negative bacterium known to have the ability to degrade and utilize hemicellulose as a substrate for its metabolism. In order to use carbon source other than sugar, this bacteria harbor some glycosyl hydrolase enzymes as secondary metabolites. One of the enzymes is xylanase (endo-β-1,4-xylanase) which can breakdown xylan. In industry, this enzyme could be used to produce many kind of xylan derivatives, such as xylooligosaccharides, which has high economical value. Aims: Therefore, the aim of this study is to clone xylanase gene and identify the ability of the expressed xylanase from Clostridium acetobutylicum to breakdown any kind of xylan sources. Material and Methods: Xylanase gene from Clostridium acetobutylicum ATCC 824 was amplified using Polymerase Chain Reaction (PCR) and cloned into pET 21a(+) expression vector, and then the constructs was transformed into Escherichia coli BL21 competent cells by heat shock. Protein expression was induced by the addition of 0.5 mM IPTG for 4 hours. The expressed recombinant protein was identified using SDS-PAGE and its activity towards various kind of substrates. Results: PCR amplification result showed that recombinant xylanase gene from C. acetobutylicum has 1371 bp and encodes 456 amino acids protein. BLAST analysis result showed that the recombinant gene has catalytic site and belongs to glycosyl hydrolase family 43. SDS-PAGE was then carried out to confirm the expression of the cloned gene and production of an approximately 42 kDa protein was confirmed from the cloned gene. However, the ability of the expressed protein to degrade any kind of xylan sources needs to be further evaluated. Conclusion: Xylanase gene from C. acetobutylicum was successfully cloned and expressed, resulted in approximately 42 kDa recombinant protein, but its activity to breakdown xylan substrates needs to be further investigated.

Keywords
Cloning, Clostridium acetobutylicum, overexpression, xylanase

Topic
Environmentally Sustainable Agriculture

Link: https://ifory.id/abstract/YVxCaQA7d6w3

Corresponding Author
Mirda Prisma Wijayanto

Institutions
a) Theoretical High Energy Physics and Instrumentation Research Group, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung 40132, Indonesia
*mirda.prisma.wijayanto[at]students.itb.ac.id
b) Indonesian Center for Theoretical and Mathematical Physics (ICTMP), Jl. Ganesha 10 Bandung 40132, Indonesia

Abstract
The goal of this research is to proof the wellposedness of scalar field equation on spatially compact spacetime Riemannian manifold. The first step of this work is to construct the equation of motion from lagrangian of scalar field with non-minimal coupling, where the coupling interaction of the scalar field $varphi$ is proportional to the scalar curvature of the spacetime. The equation of motion has the form like non-linear wave equation. The next step is to proof local existence of solutions. We have show that both the $k^{th}$ linear energy and energy norm are bounded for the finite time with the initial data in $H^{k+1} imes H^k$. Finally, we have prove the uniqueness and smoothness properties of the solution.

Keywords
Local Existence Solution, Scalar Field Equations, Complete Riemannian Manifold

Topic
Theoretical High Energy Physics

Link: https://ifory.id/abstract/ZNUc8GdFrBb7

Corresponding Author
Ardian Nata Atmaja

Institutions
Physics Research Center
Indonesian Institute of Sciences

Abstract
We generalize BPS Lagrangian method and rederive BPS equations for monopoles and dyons from the Lagrangian of SU(2) Maxwell-Higgs model in four dimensional spacetime. We show that in the BPS Lagrangian method the Gaussslaw constraint does not necessary to be imposed beforehand. We find that the BPS Lagrangian has non-boundary terms which in turn gives us some constraint equations. These constraint equations can be reduced by taking the standard BPS equations for Monopoles and Dyons, which turns out to be the Gausss law constraint in the BPS limit.

Keywords
Monopoles, Dyons, BPS equations, Gausss law constraint

Topic
Theoretical High Energy Physics

Link: https://ifory.id/abstract/6v9X4AwnQc2L

Corresponding Author
Hery Suyanto

Institutions
1Physics Dept, Faculty of Mathematics and Natural Sciences, Udayana University, Bukit Jimbaran, Badung, Bali 80361
2Chemistry Dept, Faculty of Mathematics and Natural Sciences, Udayana University, Bukit Jimbaran, Badung, Bali, 80361

Abstract
Abstract. The aim of this work was to classify parts of human tooth surface by laser-induced breakdown spectroscopy coupled with multivariate data analysis. The human tooth was irradiated by 110 mJ Nd-YaG laser (1064 nm) under Helium gas with flow rate of 50 ml/s to produce plasma. Photon emission of the plasma was captured by ocean optic spectrometer HR 200 and was displayed a spectra of intensities vs wavelength. The spectra data were analysed by different strategies in principle component analysis (PCA) algorithm for classifying human tooth surface. The spectra data were split into two ranges that were a full window spectra (FW) and special window spectra (SW). Before PCA analysing, the data were treated by different strategies of transformation namely baseline, area normalisation, derivative and original data. The results showed that the special window spectra using baseline transformation could both clustering and distinguishing parts of human tooth surface clearly.

Keywords
human tooth, PCA, LIBS, full window spectra (FW), special window (SW)

Topic
Physics related sciences

Link: https://ifory.id/abstract/LBRj9wayupAt

Corresponding Author
KHAIRUN NIDA RASYAD

Institutions
Poltekkes Kemenkes Jakarta II

Abstract
Penelitian sebelumnya membuktikan bahwa Extract Daun Binahong memiliki pengaruh dalam menyembuhkan luka infeksi bakteri Staphylococcus aureus dengan waktu efektif 50% (ET50) penyembuhan luka kurang dari 7 hari, lebih baik daripada komparator Chloramphenicol 2%. Telah dilakukan penelitian untuk menentukan aktivitas pemberian perasan dan krim daun binahong untuk menyembuhkan luka S.aureus pada mencit putih jantan melalui waktu efektif 50 (ET50) penyembuhan luka dan persentase panjang sisa luka. Penelitian eksperimental ini dilakukan di laboratorium Mikrobiologi dan laboratorium Farmakologi Jurusan Farmasi Politeknik Kesehatan Jakarta II. Hasilnya adalah waktu efektif 50 (ET50) penyembuhan luka kelompok perasan: 6,55 hari (6 hari lebih 13 jam 12 menit), Krim 7,25 hari (7 hari lebih 15 jam) dan kontrol negatif 8,75 hari (8 hari lebih 18 jam) . Kelompok perasan & kelompok Krim dapat menyembuhkan luka kurang dari 9 hari, sedangkan kontrol negatif 11 hari, tidak ada perbedaan signifikan dalam aktivitas antara perasan daun dan krim Binahong. Hasil penelitian menunjukkan aktivitas perasan dan krim daun binahong sebanding dalam proses penyembuhan luka infeksi Staphylococcus aureus

Keywords
krim binahong, waktu penyembuhan luka, infeksi S.aureus

Topic
Farmakognosi dan Fitokimia

Link: https://ifory.id/abstract/9XkZ3jAmthW2

Corresponding Author
Irfan Syarif

Institutions
1Pendidikan Dokter, Fakultas Kedokteran, Universitas Sebelas Maret, Surakarta
2Pascasarjana, Universitas Sebelas Maret, Surakarta

Abstract
Latar Belakang : Sindrom metabolik merupakan suatu permasalahan global saat ini dikarenakan tingginya prevalensinya di dunia. Vernonia amygdalina telah diketahui sebagai tumbuhan herbal untuk terapi dikarenakan efek antidiabetik dan antiinflamasinya. Tetapi, bagaimana Vernonia amygdalina bekerja untuk menghasilkan efek antiinflamasinya masih belum diketahui dengan pasti. Tujuan : Artikel ini mendiskusikan mekanisme Vernonia amygdalina dalam menurunkan kadar malondialdehid sebagai salah satu bentuk hasil akhir reaksi inflamasi pada sindrom metabolik. Metode : Pubmed dan Google scholar digunakan untuk mencari tinjauan artikel dengan kata kunci berikut ini: Vernonia amygdalina AND Metabolic Syndrome; Vernonia amygdalina AND Oxidative Stress; Vernonia amygdalina AND Malondialdehyde; dan Lipid Peroxidation AND Malondialdehyde. Hasil : Kandungan antioksidan pada daun Vernonia amygdalina seperti alkaloid, flavonoid, saponin, luteolin, asam klorogenat, dan polifenol memiliki efek inhibisi respon inflamasi pada sindrom metabolik melalui mekanisme radical scavenging activity, chelating agents, penghambatan sintesis sitokin inflamasi, dan inhibisi enzim pembentuk radikal bebas yang dapat menurunkan kadar malondialdehid sebagai biomarker reaksi inflamasi. Kesimpulan : Vernonia amygdalina berperan pada mekanisme antioksidan dalam menurunkan kadar malondialdehid yang merupakan salah satu indikator respon inflamasi pada sindrom metabolik.

Keywords
Vernonia amygdalina, Sindrom Metabolik, Malondialdehid, Stress Oksidatif, Peroksidasi Lipid

Topic
Farmakognosi dan Fitokimia

Link: https://ifory.id/abstract/U7PFAfjdTZh9

Corresponding Author
Primadhika Al Manar

Institutions
Laboratorium Konservasi Tumbuhan Obat, Departemen Konservasi Sumberdaya Hutan dan Ekowsiata, Fakultas Kehutanan, Institut Pertanian Bogor, Bogor 16680

primadhikaa[at]gmail.com/085726228023

Abstract
IPB University has been declared a biodiversity campus in 2016. The potential of medicinal plants on the campus of IPB Darmaga is unknown, even though this is very important in the development of science and technology in the field of conservation of medicinal plants. This study aims to identify the diversity of species and the potential benefits of medicinal plants on the campus of IPB Darmaga,. The method used in this research is exploration and literature study. The number of medicinal plants found on the campus of IPB Darmaga was 170 species from 68 families. The plant family has the most commonly found medicines which are Euphorbiaceae and Fabaceae of 11 species. Habitus from medicinal plants on the campus of IPB Darmaga was dominated by 60 species of trees (35.29%). The largest percentage of parts of plants that can be used as medicine is the leaf portion of 35.58%. In general, medicinal plants found on the campus of IPB Darmaga are cultivated plants. The diversity of medicinal plants found on campus of IPB Darmaga has the most efficacy for digestive tract diseases.

Keywords
exploration, IPB University, medicinal plants

Topic
Budidaya Tanaman Obat

Link: https://ifory.id/abstract/f2JkP7gZXYWM

Corresponding Author
Harry Budiharjo S

Institutions
1)Program Studi Teknik Perminyakan, FTM, UPN “Veteran” Yogyakarta
2)Program Studi Teknik Kimia, AKPRIN Yogyakarta

Abstract
Kawengan Field has reached the peak of its production and currently is being developed an Enhanced Oil Recovery (EOR). In this research bio-surfactants will be used as substance that will be injected into reservoir. Bio-surfactants are as surfactant from microorganisms and can work to reduce interfacial tension (IFT) so that it can be applied in EOR. The other advantages of bio-surfactant are being able to reduce oil viscosity in reservoir temperatures, higher biodegradation rates and low toxicity. This research used Kawengan Field oil samples before and after being given bio-surfactants. In laboratory test, the viscosity and IFT will be measured. Viscosity shows the phase changes and IFT shows bio-surfactants can reduce IFT between water-oil. The aim of this research is to provide an overview of the application of bio-surfactants as a good and viable alternative to expensive chemical surfactants in increasing oil recovery.

Keywords
Bio-surfactant, EOR, IFT

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/Q2N8x7gymZf9

Corresponding Author
Aulia Brilliantina

Institutions
a) Department of Food Industry, State Polytechnic of Jember, Mastrip Street PO BOX 164, Jember, Indonesia
*aulia_b[at]polije.ac.id
b) Faculty of Agricultural Technology University of Jember, Kalimantan III Street, Jember, Indonesia

Abstract
The problems of decrease in tea quality and tea productivity agroindustry have become a quite complex system problems. The dynamic system approach provides an analytical framework in order to understand the linkage of managerial policies of tea agroindustry. This research was conducted to design dynamic system model for tea agroindustry performance. It applied dynamic system model by using tool powersym studio 2005. Moreover, it started from observation, interviews, and document collection, which then be made a causal loop diagram to the simulation model creation and validation. The simulation is done in the period of 2019-2025. Furthermore, performance dynamic model of tea agroindustry consists of production process linkage, finance, and human resources. The system produces three scenarios (aggressive, moderate, and pessimistic) based on managements response to strategic planning in 2011-2016. The result of this research is the model can be used to provide insight for management to monitor dynamic behavior of tea agroindustry in order to get the best policy in the coming year. In addition, this research implication towards the improvement of tea agroindustry performance generally is a mechanical area of picking experiment as much as 20% from tea agroindustry wide area, training improvement and tea quality evaluation, and product diversification.

Keywords
Dynamic system; Performance measurement; Tea agroindustry

Topic
Agroindustry and Agribusiness

Link: https://ifory.id/abstract/rWMqubR2ZEH9

Corresponding Author
Anggi Putri Kurniadi

Institutions
a) Faculty of Economics, Universitas Negeri Padang
Jalan Prof. Dr. Hamka Air Tawar Padang, Padang 25131, Indonesia
*anggipkurniadi[at]gmail.com

Abstract
This study investigates the determinants and causality between current account balance and foreign direct investment in Association of Southeast Asian Nations (ASEAN) in lower middle income countries. This study uses time series from 2000-2017 and cross section of 6 countries, namely Indonesia, Philippines, Vietnam, Lao, Myanmar and Cambodia, which were analyzed using simultaneous equation model approach. There are three important findings in this study. First, current account balance is positively affected by financial development, government expenditure, real GDP and real exchange rate, while negatively affected by foreign direct investment. Second, foreign direct investment is positively affected by real GDP, real exchange rate, economic openness and current account balance, while negatively affected by inflation. Third, there is a causal relationship between current account balance and foreign direct investment, which the two variables significantly influence each other. Therefore, it is highly recommended for lower middle income countries in ASEAN to intervene in macroeconomic policy variables, so that the deficit conditions for current account balance and foreign direct investment can be reduced in the lower middle income countries in ASEAN.

Keywords
Current Account Balance; Foreign Direct Investment; Determinants; Causality; Lower Middle Income Countries; ASEAN

Topic
Economics, Finance, Banking, and Accounting

Link: https://ifory.id/abstract/GcKb8EaH4MDk

Corresponding Author
Rauly Sijabat

Institutions
Universitas PGRI Semarang

Abstract
Employee turnover is the problem that is often faced by many companies. Turnover effects on companies that tend to lead to losses as well as the results of inconclusive studies on variables that explain turnover intention, encourage many studies to conduct the study on turnover intention. However, studies that compare turnover intention between male and female employees on the model developed are still very limited. These empirical and theoretical findings direct this study to conduct comprehensive study by developing turnover intention model and to conduct comparative studies on male and female employees. The study was conducted on male and female employees in various industries. Interviews using questionnaires are data collection techniques used in this study. The acquisition of the data is used to test the model, the influence among variables and comparative studies using AMOS as the statistical approach. The results of the study show that turnover intention in women is higher than that of men. The high turnover intention in women is caused by the decrease in organizational commitment due to the increase in job stress.

Keywords
workload, work family conflict, job stress, organizational commitment, turnover intention

Topic
Management, Enterpreneurship, and Leadership

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

Corresponding Author
Achmad Dardiri

Institutions
Faculty of Educational Sciences, Yogyakarta State University (Universitas Negeri Yogyakarta), Karangmalang, Yogyakarta 55281

Abstract
Educational activities are activities between educator and students. In other words, educational activities are activities between humans. Therefore, an understanding of the nature of human beings is absolutely necessary, in this case the understanding of student as human beings is very important so that the direction and goals can be achieved. Understanding of education/learning processes and methods is also important because the choice of education/learning methods is not solely in accordance with a taste of the teacher. However, it is very much related to educational/learning goals, and more importantly is the reason why choosing a particular method and not others. In addition, the value that underlie the activities and at the same time become the target of educational activities should also not be ignored by an educator/teacher, because the essence of educational activities is how those values internalize in students. This is the philosophical foundation of education.

Keywords
philosophical bases of education, teachers

Topic
Education and Research Global Issue

Link: https://ifory.id/abstract/ztH7cPACRgbd

Corresponding Author
Nur Bahirah

Institutions
1Halal Products Research Institute, Universiti Putra Malaysia
2Department of Government and Civilization Studies, Faculty of Human Ecology, Universiti
Putra Malaysia
*amdaud[at]upm.edu.my
3Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia

Abstract
Alcohol is not only found in certain food and beverage products, but also most widely used in cosmetics, perfumes, skin care products and personal care products. In this regard, this study will look at the status of alcohol found in Shariah-based cosmetic products in Malaysia. Therefore, this article presents a review of the status of alcohol in Islam and science as well as to discover types of alcohol in cosmetic products. Besides that, this article will also explain the law of alcohol in cosmetics product according to Shariah. Hence, types of alcohol in cosmetic products will have implications for communities based on halal and haram.

Keywords
alcohol, cosmetic products and Shariah

Topic
Halal Science and Technology

Link: https://ifory.id/abstract/Rtp27gKj3hET

Corresponding Author
Fera Dwi Setyani

Institutions
a) Chalmers University of Technology
Chalmersplatsen 4, 412 96 Göteborg, Sweden
amien[at]student.chalmers.se
b) Universitas Pertamina
*feradwisetyani[at]universitaspertamina.ac.id
c) Institut Teknologi Bandung
rajinsihombing[at]gmail.com

Abstract
As one of the biggest maritime nation in the world, Indonesia has big advantages and potential with its long coastline. Part of the maritime industry that Indonesia can provide is the port services. The port development hoped to increase an area income by letting the business opportunity growing through the ease access of logistics, but on the other hand, the port development causing negative effects on the side, such as biodiversity risk and environmental issue such as air, water, and noise pollution. The biggest reference in this study is the Global Goals for Sustainable Development (SDGs) set by United Nation (UN) General Assembly. In this study, the vision of United Nation (UN) for the year of 2030 will be considered and compared to the current requirement of Indonesian-s port study of which already put the environmental issues to be addressed. As a result, there will be challenges and inputs for the authorities as the stakeholder in Indonesian Port Planning study.

Keywords
Port Planning, UN SDGs

Topic
Ocean Engineering and Technology

Link: https://ifory.id/abstract/zY34FWRBdJhk

Corresponding Author
Irfan Mujahidin

Institutions
Electrical Engineering
University of Merdeka Malang

Abstract
The wireless communication network system requires complex configuration component of the electromagnetic feeding network circuit, and high-cost material, especially for the electromagnetic component on a high frequency.5.8 GHz with Double 90-degree phase difference output using butler matrix feeding Network for the wireless communication network system. it is the novel shaped and configuration microstrip electromagnetic circuit with the free frequency, no complex configuration, and low-cost material at the 5.8 GHz. This system is package consists of a 5.8 GHz Microstrip antenna with the array rectangular microstrip antenna, and Butler matrix to generate double 90-degree phase difference with quad input and quad output. The Antenna has a single band and narrow bandwidth with the four-port and have a single working frequency that is 5.58 GHz under -10dB S parameter and using via hole for a transmission line to network feeding system, the radiation pattern is directional and the gain level is 6.83 dB and 50 ohms feeding impedance. The 90-degree hybrid coupler has S11 of -26.19 dB, S21 of 31.65 dB, S51 of -26.18 dB, and S61 of -32.52 dB that all is specification has a good working. And overall size of the proposed this configuration is 80 mm times 65 mm with Phenolic White Paper with a dielectric constant is 4.4 that has 50ohm.

Keywords
Microstrip antenna, Butler matrix, Array rectangular microstrip antenna.

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/GA3Zd69K4FQz

Corresponding Author
Fauzia Seftyandra Seftyandra

Institutions
University of Indonesia

Abstract
This paper aims to identify and classify the key practice indicators of effectiveness teams in project-based teams, with the intention of gaining a greater insight into how they influence team outcomes. As we all know, effective teamwork is very important in every organization. This paper was conducted with a systematic literature review to identify a set of indicators that affect team effectiveness on research into human research management and project management literature. The methodology that applied was generating data from observation of the previous studies to draw a specific conclusion. This paper has resulted in 18 key indicators of effectiveness being identified from the literature, which together form the basis for transforming the project-based team into an effective team. Although there is an element of interdependence between some of the indicators, for the purpose of determining key indicators, it is important to consider them independently because each indicator represents key practices to team effectiveness. It is hoped that the proposed framework will make a contribution by providing the necessary groundwork for further research and development in this area. This paper identifies issues to be faced in adopting a strategy to the project-based team in an organization. There is a diversity of current thinking on effective teamwork in a projects based team. This study achieves that while recognizing a complex system of interdependence between some indicators, it further extends the team effectiveness literature by providing deeper insights into the importance of exercising and improving teamwork. The research implications are discussed in this review.

Keywords
Effectiveness, Teamwork, Project-based, Teams, Key Indicators

Topic
Human Resource Management

Link: https://ifory.id/abstract/u9jhWyfYxdtn

Corresponding Author
Septriandi Wirayoga

Institutions
a)b)c)d)e)Electrical Engineering Department, Malang State Polytechnic, Jl. Soekarno Hatta 9 Malang

Abstract
Abstract. The rapid development of technology in the field of air transportation technology has made Drones a flying vehicle that has been developed to date. Drones have many uses, for example for hobbies, navigation tools, and transportation equipment. Drones were also developed to monitor environments that are difficult to reach by humans. The ability of manual control with limited distance is an obstacle. This research describes the Mission Definition System (MDS) designed to help in defining the mission of Drones easily and efficiently and to support the application of autonomous aviation. Under the direct supervision of the pilot line, the selection of Drone control will be possible if in an unsafe situation. After the user defines the mission, then it is forwarded to the Mission Calculation Engine, which is tasked with carrying out the proper calculations to obtain a compatible and predictable flight plan. A Flight Plan is a list of orders that the Drone must complete to fulfill the mission designed. Trial results and measurements of the degree of autonomic system accuracy have been carried out 10 times and experienced failed orders as much as possible due to natural factors during the trial. In terms of drone image mapping, it successfully detects objects with a success rate of 88% by mapping several target locations. To upload to the system with a success rate of around 82% due to inadequate telecommunication service factors at the testing location.

Keywords
mission definition system, machine mission calculation, mobile node, static node, automatic drone.

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/J6pkAP9uj8FY

Corresponding Author
Laras Pratiwi

Institutions
Facultyo f Economic
Perjuangan University of Tasikmalaya.
Jl. Peta No.177 Tasikmalaya

Abstract
Indonesia is abundant country in natural wealth, Indonesia has a lot of the biodiversity. Agriculture is one sector that plays an important role in the Indonesian economy. The Central Statistics Agency (BPS) states that the agricultural sector is the second sector which has the highest influence on Indonesias economic growth after the processing industry. Seeing this enormous potential, agricultural sector should be able to attract high-level investor to invest in this companies. The fact is that investor interest in agricultural sector companies is still very small. The agricultural sector has unique business risks, business risk does not only depend on economic stability but also depends on natural factors. An investor needs confidence in making investment decisions, one of these beliefs is through the going concern audit opinion. Going concern audit opinion is an opinion issued by the auditor if there is hesitaton in a company in maintaining its survival. Going concern audit opinion is able to provide an overview to investors to assess investment feasibility and provide confidence whether the company has good prospects and is able to meet the desired return of investors. This study aims to obtain empirical evidence regarding the factors that influence the going concern audit opinion on agricultural sector companies in Indonesia. The population in this study is agricultural sector companies which are listed on the Indonesia Stock Exchange in the period of 2014 - 2018. The sampling technique used is purposive sampling method. The number of companies that met the sample criteria are 10 companies. This study uses the research method of logistic regression analysis. The results of the analysis showed that the previous years financial distress and audit opinion partially influence the going-concern audit opinion and sales growth partially does not affect the going-concern audit opinion.

Keywords
Going Concern Audit Opinion; Financial Distress; Growth.

Topic
Auditing

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

Corresponding Author
Achmad Sutanto

Institutions
a) State Polytechnic of Semarang
Jalan Prof. H. Seodarto, S.H, Tembalang, Semarang, 50275, Indonesia
* achmadsutanto[at]gmail.com
b) State Polytechnic of Semarang
Jalan Prof. H. Seodarto, S.H, Tembalang, Semarang, 50275, Indonesia

Abstract
Wireless Sensor Network (WSN) is currently developing so rapidly. This can encourage the creation of many innovative and implementable products that are very useful in everyday life. One of these products is the utilization of WSN for monitoring the condition of the hen coop, caring and increasing productivity of livestock in the midst of the difficult conditions to control and know the state of the coop manually. In this study, an automated system will be designed to keep the hen coop close to ideal conditions includes the temperature of the cage, air humidity, and the chicks feeding system automatically and periodically. This research was compiled using a combination of several sensors that are arranged in a micro-controller such as the DHT11 sensor as temperature sensing, Load cell sensors as sensing the availability of residual feed and some Servo for action actuators to create the desired hen coop atmosphere. The program is connected through the WSN and using Raspberry as a communication device to the network. The expected results with this system include ease of control of hen coop for owners or workers, maintained poultry health, and maximum yields of livestock products.

Keywords
WSN; Smart farming; Smart hencoop; Livestock

Topic
Telecommunication Engineering

Link: https://ifory.id/abstract/QNGYwnMLA4ZE

Corresponding Author
Ulfa Puspa Wanti Widodo

Institutions
Faculty of Economics and Business, University of Lambung Mangkurat
Banjarmasin - South Borneo

Abstract
Background— Adoption of fair value into Indonesian GAAP (PSAK No.13) offers an alternative method, apart from the existing one; historical cost. Companies then need to consider which method suitable with the nature of their respective entity as well as the determinants of fair value adoption itself. Review of literature shows that there are determinants of the adoption: are leverage, earnings volatility, size, ownership structure, transparency commitment, and asymmetric information. Purpose and Methodology— This study aims to examine and analyze factors influencing fair value adoption using a quantitative approach. There are 89 companies as samples of this study having properties investment selected from 630 companies listing on IDX period 2015-2018. All hypotheses are tested using logistic regression. Findings— The result shows that leverage, size, and transparency commitment affect fair value adoption, while earnings volatility, ownership structure, and asymmetric information show opposite results. Research Limitation— Not all data needed by this study are available at the companies- websites, including information of property investment. As a result a half of the population of this study is excluded. Originality/value— This study captures the latest development of determinants of fair value adoption in Indonesia, specifically on listed companies having property investment on the period 2015-2018.

Keywords
fair value, investment property, leverage, size, transparency commitment.

Topic
Accounting

Link: https://ifory.id/abstract/qgxfvH6wkK9R