Indonesia Conference Directory

Corresponding Author
Rini Yudiati

Institutions
University Wiraraja

Abstract
Public education in improving the economy requires support from various parties, which of course will greatly influence the welfare of Gili Genting Island has known as Pantai Sembilan Tourism, which has asset that can be shown to all Indonesian and international communities.This research aimed to analyse the effect of buplic education on improving the economic through tourism spots in Gili Genting Island.the population which has taken in this research is Gili Genting community with 100 samples. The method used is proportional random sampling. Data collection is done by questionare and it is analyzed by using path analysis. The result showed that (1) there are significant effects between public education on improving economic; (2) there are significant effects between tourism spot on improving the economic; (3) there are significant direct effects between public education on improving the economic; (4) and there are significant direct effect between public education on improving economic through tourism spots. The conclusion is that improving the economy in the Gili Genting island depends on the education of community, especially the youth in developing tourism spots in Gili Genting Island.

Keywords
Public Education, Improving Economic, Tourism Spots

Topic
Tourism

Link: https://ifory.id/abstract/LkhzWX9TuAqc

Corresponding Author
Ratih Indri Hapsari

Institutions
1) Department of Civil Engineering, State Polytechnic of Malang
2) Department of Informatics Technology, State Polytechnic of Malang
*) ratih[at]polinema.ac.id

Abstract
Lahar disaster is a debris flow event following volcanic eruption that is triggered by intense rainfall. This disaster induces a potential losses that include casualty, damage or loss of property, and environmental disruption. In this study the system of lahar vulnerability assessment is developed. The target area is a river is Merapi volcano Indonesia. Naive Bayes Classifier Method is applied to classify areas or flood-prone zones or safe. In this study, the database and the interface is created using MySQL and PHP Hypertext Preprocessor. The determining factors are spatially distributed rainfall intensity from X-band weather radar, topographical factor, and soil type. This research has produced a flood disaster status determination system on the slopes of Merapi with an accuracy rate of 84.6%, from the results of taking 10% of the training data. The output of this system is an information system shown in vulnerability map that provides information about the status of susceptible zones to lahar flow.

Keywords
Lahar, Naive Bayes Classifier, Merapi Volcano

Topic
Civil Engineering

Link: https://ifory.id/abstract/qBX3ru6TULnC

Corresponding Author
Ronny Mardiyanto

Institutions
Institut Teknologi Sepuluh Nopember

Abstract
Research on robotic path planning based on the PSO (Particle Swarm Optimization) method has been widely researched and developed. PSO is an optimization algorithm that aims to find the best solution to find the shortest route by utilizing particle population movements. In this paper, robots are tested by obstruction and without obstruction by route (coordinates X, Y) starting from the coordinate point (1, 1) with the aim of the route at the coordinate point (5, 5). The results of the research were conducted by comparing the computation time and the shortest route distance of the robot to reach the destination point with obstacles and without obstacles.

Keywords
PSO, Robotic Path Planning, Line Follower

Topic
Mechatronics and Robotics Technologies

Link: https://ifory.id/abstract/pB3WvKD6hwHy

Corresponding Author
Lia Ardiansari

Institutions
UPI

Abstract
Relational thinking involves understanding equality and numerical relationships, thus encouraging students to reflect on the numerical relationship between structurally similar expressions promising a smooth transition from arithmetic to algebra. The distributive property provides a means of the equal sign to connect two operations, such as addition and multiplication in any field. Therefore, the distributive property is used in this study to investigate the type of familiarity with the nature of this operation so that it can be a promotion of flexibility in thinking that can lead to algebraic thinking. This study aims to investigate ways of thinking, learning, and experiences that are understood narratively. A Narrative inquiry highlights the problem and forms a new theoretical understanding of ones experience. Data was collected by distributing questionnaires and semi-structured interviews to participants as many as 53 junior high school students where 45% were male students and 55% were female students selected using purposive sampling technique. The results of the study show that generally junior high school students still have a weak understanding of the same relationship in distributive property described by the word "operational" which is a contrasting understanding with the relational viewpoint.

Keywords
algebraic thinking, distributive property, equal sign, narrative inquiry, relational thinking

Topic
Mathematics Education

Link: https://ifory.id/abstract/njJ2ZR4BAGMX

Corresponding Author
Siti Maimunah

Institutions
UPI

Abstract
vation categories, this research conducted 4 test( 3 Mathematical Abstraction test 1 Olympiad test) and 1 questionnaire on self confidence. The result showed that Mathematical abstraction tests make them aware of their own understanding state. It also gives them knowledge they can use to complete mathematics Olympiad test. Further explanation on how their opinion and self confidence changes after the whole test is revealed on the results. In conclusions, this research explain how self confidence is the first weapon students need to have to conquer any challenges including mathematics Olympiad.

Keywords
Mathematical Abstraction, Self Confidence, Mathematics Olympiad

Topic
Mathematics Education

Link: https://ifory.id/abstract/KNZx4tkGBc7F

Corresponding Author
Ferry Ferdianto

Institutions
Universitas Swadaya Gunung Jati

Abstract
Teacher Professional Education (PPG) is professional education in Higher Education after an undergraduate program that collects students in the field of work that requires special competence. The purpose of this research was to find out PPG students- mistake in learning daring process. The methode used for this research is descriptive qualitative from chat in daring learning. This research samples were students of PPG grade from one public school in Cirebon, Central Java, Indonesia. The analysis of PPG students mistake used the instrument of chat in daring learning process. The module 6 in daring learning process consists of 4 learning competencies that consist of 2 topics in learning daring process. The result showed that majority of the students have responded to the topic presented by the instructor, while few of them made mistakes in answering the topic of the problem given by the instructor. Students make reading mistakes and misunderstanding, reading stage students- cannot interpret the sentences they read well, understand problems (comprehension).

Keywords
analysis of students mistake, reading mistakes, and comprehension

Topic
Integrated Science Education

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

Corresponding Author
Ni Ketut Seminari

Institutions
Fakultas Ekonomi dan Bisnis Universitas Udayana (Unud), Bali, Indonesia

Abstract
Perkembangan teknologi menuntut pebisnis untuk berkembang dan berinovasi suatu produk yang unggul sesuai dengan kebutuhan dan selera konsumen. Produk yang sedang unggul saat ini adalah trasnportasi online salah satunya adalah Grab. Tujuan dari penelitian ini untuk membahas pengaruh kualitas layanan terhadap loyalitas pelanggan melalui kepuasan pelanggan Grab.Variabel yang diteliti pada penelitian ini adalah variabel kualitas layanan, kepuasan, dan loyalitas pelanggan. Jumlah sampel yang diambil sebanyak 120 konsumen Grab dengan metode purposive sampling yang memiliki kriteria pernah menggunakan aplikasi Grab minimal dua kali dalam sebulan, berdomisili di Kota Denpasar, dan usia minimal 18 tahun. Data dikumpulkan melalui penyebaran kuesioner. Teknik analisis yang digunakan adalah uji sobel dengan menggunakan path analysis. Berdasarkan hasil analisis ditemukan bahwa variabel kualitas layanan berpengaruh positif dan signifikan terhadap kepuasan, variabel kualitas layanan berpengaruh positif dan signifikan terhadap loyalitas pelanggan Grab, variabel kepuasan berpengaruh positif dan signifikan terhadap loyalitas pelanggan Grab, serta variabel kualitas layanan berpengaruh positif dan signifikan terhadap loyalitas pelanggan melalui kepuasan.

Keywords
Kepuasan, Kualitas Layanan, Loyalitas Pelanggan, Grab.

Topic
Manajemen Pemasaran

Link: https://ifory.id/abstract/u8kjpnbQtC7m

Corresponding Author
Irwandy Irwandy

Institutions
a). Hospital Management Department, Public Health Faculty, Hasanuddin University, Indonesia
*wandy_email[at]yahoo.co.id

b). Administration and Health Policy Department, Public Health Faculty, Hasanuddin University, Indonesia

Abstract
Objective: The purpose of this study was to assess the hospital productivity changes in South Sulawesi Province, since the implementation of the National Health Insurance policy in Indonesia from 2014-2017. Methods: The research method used was a quantitative with cross-sectional study design. The population and sample of the study were the 25 Public Hospital in South Sulawesi Province. Analysis of Hospital productivity growth is measured by the Malmquist Total Factor Productivity Index (TFPI) method. Results: During the period of 2014 to 2017, the level of productivity of hospitals grew by 4%, but the annual analysis showed that the level of productivity of hospitals decreased from year to year. In 2014-2015, hospital productivity grew by 7.4%, 2015-2016 fell to 4.1% and 2016-2017 only grew by 0.5%. Conclusion: The results showed that since the implementation of the National Health Insurance policy, the level of hospital productivity continued to decline.

Keywords
Healthcare, Data Envelopment Analysis, BLUD, Policy Implementation

Topic
Financial Management

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

Corresponding Author
Epon Nuraeni

Institutions
UPI

Abstract
The research is based on the emergence of learning obstacles of students on the topic of properties of triangles. The didactical design that the researcher designed is one of the first steps to overcome learning obstacles. The aim of the research was to develop a didactical design of the properties of triangles based on péclé traditional games for third grade students of primary school. The research was conducted in the City of Tasikmalaya, Indonesia. The study used descriptive qualitative methods. The research instrument is equipped with teaching materials in the form of Student Activity Sheets (SAS). Data collection used is interviews, tests, attitude scale questionnaires and documentation. The results of the study indicate that the design that the researcher can use by teachers and elementary students to enrich the learning design, and can be developed further to minimize the obstacle learning of students in mathematics.

Keywords
the properties of triangles, learning obstacles, péclé traditional games

Topic
Mathematics Education

Link: https://ifory.id/abstract/8wtrn4QDYB7u

Corresponding Author
Ety Istriani

Institutions
Universitas Kristen Duta Wacana

Abstract
ANALISIS PENGARUH CITRA MEREK, KUALITAS PELAYANAN, DAN PERSEPSI HARGA TERHADAP KEPUASAN KONSUMEN DALAM MENGGUNAKAN GO-RIDE DI YOGYAKARTA Nyoman Mara Purna Wijaya Ety Istriani ettyis@staff.ukdw.ac.id ABSTRAK Tujuan dari penelitian ini adalah untuk menguji pengaruh variabel citra merek, kualitas pelayanan, dan persepsi harga terhadap kepuasan konsumen dalam menggunakan Go-Ride di Yogyakarta. Data yang dianalisis berjumlah 100 orang responden, pengambilan data dengan menggunakan teknik purposive sampling. Hipotesis yang diajukan dalam penelitian ini yaitu: citra merek, kualitas pelayanan, dan persepsi harga berpengaruh terhadap kepuasan konsumen. Data dianalisis dengan menggunakan alat regresi linier berganda. Hasil penelitian menunjukkan variabel independen citra merek, kualitas pelayanan, dan persepsi harga berpengaruh secara signifikan terhadap kepuasan konsumen dalam menggunakan Go-Ride di Yogyakarta. Koefisien determinasi (adjusted Rsquare) adalah 0,750 yang berarti variabel citra merek,kualitas pelayanan, dan persepsi harga dapat menjelaskan kepuasan konsumen dalam menggunakan Go-Ride di Yogyakarta sebesar 75% dan sisanya 25% dipengaruhi oleh variabel lain yang tidak disebutkan dalam penelitian ini. Kata kunci: Citra Merek, Kualitas Pelayanan, Persepsi Harga, Kepuasan Konsumen ANALYSIS OF THE EFFECTS OF BRAND IMAGE,SERVICE QUALITY, AND PRICE PERCEPTION ON CONSUMERS SATISFACTION IN USING GO-RIDE IN YOGYAKARTA Nyoman Mara Purna Wijaya Ety Istriani ettyis@staff.ukdw.ac.id ABSTRACT The objectives of the reseach are knowing the effects of variables brand image, service quality, and the price perception of consumers satisfaction in using Go-Ride in Yogyakarta. The researcher conducted survey by using purposive sampling technique, in which there were 100 persons as respondents. The hypothesis of the research is brand image, service quality, and price perceptionrelated to the consumers satisfaction. The researcher used double linier regretion device. The results of the research showed the independent variable of brand image, service quality, and the price perception relatedsignificantly on consumers satisfactionof using Go-Ride in Yogyakarta. Determination coefficient (adjusted R square) was 0,750 indicated the variables of brand image, service quality, and price perception showed 75% of consumers satisfaction in using Go-Ride in Yogyakarta and 25% affeeted by other variables which did mentioned in this research. Keywords: Brand Image, Service Quality, Price Perception, Consumers Satisfaction

Keywords
Citra Merek, Kualitas Pelayanan, Persepsi Harga, Kepuasan Konsumen

Topic
Manajemen Pemasaran

Link: https://ifory.id/abstract/MAxGkYhL29qW

Corresponding Author
Sukri Palutturi

Institutions
1 Department of Health Policy and Administration, Faculty of Public Health Hasanuddin University, Makassar Indonesia
2 Department of Hospital Management, Faculty of Public Health Hasanuddin University, Makassar Indonesia
3 Faculty of Law Hasanuddin University, Makassar Indonesia

Abstract
Abstract Objective: Hospitals are quite complex workplaces. Health workers, patients and families of patients interact with various backgrounds and often ignore health and environmental aspects, including smoking behavior. This paper aimed to discuss effective strategies for implementing non-smoking areas in hospitals, Indonesia. Method: This research used a systematic literature review. Various references were gathered from online databases including ProQuest and journals. 5,598 dokumen yang berkaitan dengan non semoking area di rumah sakit dalam lima tahun terakhir. Jika difilter terdapat 459 artikel terutama yang berkaitan dengan scholarly journals. The articles were screened according to research objectives. Some relevant articles published by using Indonesia were added. The keywords used are non smoking area, hospital, Indonesia. Results: This study found that creating healthy behavior in the hospital is important, besides the hospital functions as a health care provider. The application of Ottawa Charter strategies consistently and sustainably is an effective way to control how the hospital community does not smoke in the hospital. Strengthening the strategy is on building Healthy Public Policy; Createing Supportive Environments; Strengthening Community Actions; Developing Personal Skills; and Reorienting Health Services. Conclusion: This paper suggests that some global strategy indicators can be adapted to local needs in hospitals in Indonesia. The evidence-based research on the challenges of applying non-smoking areas in hospitals needs to be examined further.

Keywords
Stop Smoking, Hospitals, Systematic Review, Indonesia

Topic
Public Health Issue

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

Corresponding Author
MELLIYANA NURDIN

Institutions
1Bagian Kebidanan, Sekolah Pascasarjana,Universitas Hasanuddin, Indonesia
2Bagian Farmasi, Fakultas Farmasi, Universitas Hasanuddin, Indonesia
3Bagian Bedah Onkologi, Fakultas Kedokteran, Universitas Hasanuddin, Indonesia

*risfahyulianty[at]unhas.ac.id

Abstract
Objective: This study aims to determine the effectiveness of Centella asiatica (L). Urban extraction TNF-α levels in female Sprague dawley rats induced by S. aureus. Methods: There were four treatment groups (each group consisted of five rats). Before treatment, S. aureus 0.2 mlx108 CFU was induced. Group I was only given 0.5% Na CMC, Cefadroxil group II 45 mg / kg WB, Group III Centella leaf extract 100 mg / Kg WB, and group IV combination Cefadroxil and Centella leaf extract. Each group was given treatment twice per 12 hours a day for 5 days. TNF-α levels were measured on day 3 and day 6 after induction of S. aureus tested by ELISA and analyzed by One Way ANOVA test and independent sample T test. Results: TNF-α level between groups did not have a significant on day 3 and differed significantly after day 6. On day 3, the control group had a higher TNF-α level of 25.13 pg/ml compared to the group given antibiotics and Centella asiatica. While when compared to the group given only Centella asiática the control group was more height of 17.1 pg /ml. On the 6th day this condition was changed, the biggest difference found in the group given Centella asiatica, in the control group had higher levels of TNF-α 72.34 pg / ml compared to the group receiving Centella asiática. Then, control group is higher than 66.46 pg/ml compared to those given antibiotics and Centella asiatica. Conclusion: C. asiatica leaf extract is effective in reducing TNF both given alone and given along with antibiotics. It is potential to be explored into alternative and complementary treatments in mastitis cases with human trials.

Keywords
Centella asiática L. Urban Leaf Extract, Mastitis, TNF-α, Sprague dawley

Topic
Herbal medicine

Link: https://ifory.id/abstract/GJCtfYKeDwb6

Corresponding Author
Muhammad Yudhistira Azis

Institutions

1Analytical Chemistry Research Group, Institut Teknologi Bandung,
Jl. Ganesa 10 Bandung 40132 Indonesia
2Chemical Engineering Product Design and Development Research Group
Institut Teknologi Bandung, Jl. Ganesha 10 Bandung, 40132 Indonesia

Abstract
Water contamination caused by dye industries, has caused more and more attention, since most dyes are harmful to human being and environments. Some dyes like methylene blue (MB) and their degradation products have carcinogens and toxic properties so that the removal of dyes from surface water or wastewater is very important. Physical adsorption using solid adsorbents has been a promising method for treating dyes, pigments and other colorant wastewater, owing to its advantages such as operational simplicity, low cost, availability in large amount and ability to treat pollutants in a sufficiently large scale operation. In this study, the sorption of MB from aqueous solution onto composite nanofiber under the influence of temperature has been investigated. It was observed that the amount of MB adsorbed increase with increasing temperature. Thermodynamic parameters data indicated that the MB adsorption process was non-spontaneous and endothermic under the experimental conditions, with the Gibbs free energy (?Go) in the range of 1.721-0.610 kJ mol-1, enthalpy (?Ho) and entropy (?So) of 7.24 kJ mol-1 and 18.52 J mol-1.K-1, respectively and the activation energy was 13.85 kJ mol-1.

Keywords
Effect of Temperature on Sorption of MB from Aqueous Solution using Composite Nanofiber

Topic
Chemistry

Link: https://ifory.id/abstract/A6GjpdNDzCwB

Corresponding Author
Fitriya Fauzi

Institutions
Universitas Bina Darma

Abstract
Tujuan penelitian ini adalah untuk menganalisis koordinasi yang dilakukan oleh Pejabat Pengelola Informasi dan Dokumentasi Provinsi Sumatera Selatan dalam pelayanan informasi publik dan untuk mengetahui kendala yang menjadi faktor penghambat dalam koordinasi antar PPID Provinsi Sumatera Selatan. Objek penelitian ini adalah PPID pada Dinas Komunikasi dan Informatika Provinsi Sumatera Selatan. Jenis penelitian yang digunakan adalah deskriptif kualitatif dengan data yang digunakan adalah data primier dan sekunder yang diperloleh melalui data-data instansi, literature, studi pustaka, buku-buku yang berhubungan dengan penelitian serta melakukan penelitian langsung ke lapangan. Teknik pengumpulan data dilakukan dengan observasi langsung pada objek penelitian dan wawancara terstruktur kepada informan penelitian. Hasil dari penelitian ini didapatkan bahwa koordinasi yang dilakukan antara PPID Utama maupun PPID Pembantu sudah berjalan baik pada saat ini, dimana terdapat media dalam melakukan koordinasi berupa forum whatsapp, rapat koordinasi dan adanya surat perintah yang menjadi acuan kerja dari PPID Utama ke PPID Pembantu. Kendala yang dihadapi dalam koordinasi antar PPID baik dari PPID Utama ke PPID Pembantu adalah adanya pergantian SDM yang menempati jabatan pada PPID Pembantu maupun PPID Utama, lambatnya respon dari PPID Pembantu atas permintaan oleh PPID Utama terkait dengan informasi yang dimintakan oleh masyarakat, serta Masih adanya koordinasi yang searah dimana hanya PPID Pembantu yang aktif melakukan koordinasi ke PPID Utama yang seharusnya koordinasi tersebut dilakukan dua arah yaitu koordinasi dilakukan oleh PPID Utama ke PPID Pembantu atau sebaliknya.

Keywords
Koordinasi, Informasi Publik, PPID

Topic
Manajemen Sumber Daya Manusia

Link: https://ifory.id/abstract/jqJ2hTXP9e7F

Corresponding Author
nasrayanti nurdin

Institutions
a) Midwifery Studies Program, Graduate University of
Hasanuddin
b) Department of Obstetrics and Gynecology
b) Department of Medicine

Abstract
Aim: This study aimed to determine the correlation between insulin resistance on the incidence of preeclampsia and factors - factors that influence it. Method: This study uses an observational analysis with dsain hybrid. Subjects in this study were pregnant women with gestational age> 20 weeks with a sample of 87 people selected by using total sampling technique. result: Research shows that as many as 56.7% of pregnant women with preeclampsia insulin resistance and 17.5% of pregnant women with normal pregnancy insulin resistance. Based on the statistical test by using Chi-Square test showed that the age of 20-35 years (P-Value = 0.000), parity <1 and> 3 (P-Value = 0.003), nutritional status LILA 23-33 cm (P-Value = 0.000), there was no history of hypertension (P-Value = 0.000), normal weight gain (P-Value = 0.000), proteinurine> 300mg / dL (P-Value = 0.000). It can be concluded that these characteristics are factors that could be at risk for insulin resistance that might lead to preeclampsia. Results Spearman test showed that age (P-Value = 0.706), parity (P-Value = 0.251), the nutritional status of the LILA (P-Value = 0.288), history of hypertension (P-Value = 0.796), weight gain ( P-Value = 0.469). Conclusion: Insulin resistance was significantly related to the incidence of preeclampsia. Characteristics of respondents in the 20-35 years age, parity <1 and> 3, the nutritional status of MUAC 23-33 cm, respondents with no history of hypertension, weight gain is normal and significant proteinurine be a risk factor for insulin resistance that leads to preeclampsia. No characteristics of respondents who have a correlation with insulin resistance will lead to a risk for preeclampsia.

Keywords
Insulin resistance, characteristics of pregnant women, preeclampsia.

Topic
Uncommunicable disease related to women

Link: https://ifory.id/abstract/r8yRZ6F39KW4

Corresponding Author
Vara Nina Yulian

Institutions
a) Study Program of Mathematics Education, School of Postgraduate Studies, Universitas Pendidikan Indonesia
Jl. Dr. Setiabudhi 229, Bandung, Indonesia
*varanina15[at]student.upi.edu
b)Study Program of Mathematics Education, Universitas Subang
Jl. RA Kartini Km 3 Subang, Subang, Indonesia

Abstract
The aims of this study (1) to identify differences between the application of GeoGebra-based learning and Non-GeoGebra on the spatial abilities of students in Geometry Transformation; (2) to identify difference between learning motivation categories and students spatial ability; and (3) to identify differences the effect of interaction between GeoGebra based learning and motivation on students spatial abilities. The subject in this research was 60 students from 20 classes in one of vocational high schools, in Subang, West Java, selected by applying purposive sampling technique. Data collection was carried out by taking a questionnaire for learning motivation data and spatial abilities test. The results of the study are as follows. First, there is no significant difference between GeoGebra-based learning on the spatial ability of students, although there is no positive and significant influence the average value of spatial abilities of students with GeoGebra-based learning has a better average value than students given Non GeoGebra learning. Second, there is a significant difference between students learning motivation towards the students spatial ability, students with high motivation and medium motivation have better spatial abilities than students with low motivation. Students with high motivation and medium motivation category have same influence on their spatial abilities. Third, there is no interaction between GeoGebra based learning and motivation on students spatial abilities.

Keywords
GeoGebra, motivation, spatial ability

Topic
Mathematics Education

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

Corresponding Author
Sri Mulyati

Institutions
Prodi Manajemen Fakultas Ekonomi Universitas Islam Indonesia Yogyakarata

Abstract
Penelitian ini bertujuan untuk ; (1) mengetahui pengaruh hari perdagangan terhadap return saham perusahaan LQ45 di Bursa Efek Indonesia, (2) mengetahui pengaruh Monday Effect terhadap return saham perusahaan LQ45 di Bursa Efek Indonesia, (3) mengetahui pengaruh Weekend Effect terhadap return saham perusahaan LQ45 di Bursa Efek Indonesia. Sampel yang digunakan dalam penelitian adalah perusahaan yang terdaftar dalam LQ45 di Bursa Efek Indonesia periode Agustus 2016 – Juli 2017. Teknis analisis data yang digunakkan adalah uji simultan (F-test) untuk hipotesis pertama, sedangkan hipotesis kedua dan ketiga menggunakaan uji Parsial (t-test). Hasil penelitian menunjukkan bahwa (1) terdapat pengaruh hari perdagangan terhadap return saham perusahaan LQ45 periode Agustus 2016 sampai dengan Juli 2017, (2) tidak terdapat pengaruh Monday Effect terhadap return saham perusahaan LQ45 periode Agustus 2016 sampai dengan Juli 2017, (3) terdapat pengaruh Weekend Effect pada return saham perusahaan LQ45 periode Agustus 2016 sampai dengan Juli 2017.

Keywords
day of the week, Monday effect, Weekend Effect, LQ45, return saham

Topic
Manajemen Keuangan

Link: https://ifory.id/abstract/NLgTMv3DbeAp

Corresponding Author
NI Made Rastini

Institutions
Universitas Udayana

Abstract
Kedai kopi merupakan salah satu faktor pendukung dalam pengembangan sektor pariwisata, karena budaya minum kopi telah menjadi gaya hidup tersendiri baik bagi masyarakat lokal maupun wisatawan. Tujuan dari penelitian ini untuk menjelaskan inovasi dalam memediasi pengaruh orientasi pasar terhadap kinerja bisnis pada UKM kedai kopi di Kota Denpasar. Penelitian ini melibatkan 46 manajer UKM kedai kopi sebagai responden penelitian dengan menggunakan purposive sampling melalui penyebaran kuisioner. Teknik analisis data yang digunakan adalah teknik analisis jalur dan uji sobel. Hasil analisis menunjukkan semua hipotesis diterima, artinya Orientasi pasar berpengaruh positif dan signifikan terhadap inovasi, orientasi pasar berpengaruh positif dan signifikan terhadap kinerja bisnis, inovasi berpengaruh positif dan signifikan terhadap kinerja bisnis, dan inovasi mampu memediasi secara penuh pengaruh orientasi pasar terhadap kinerja bisnis. Berdasarkan hasil penelitian, inovasi mampu memediasi secara penuh pengaruh orientasi pasar terhadap kinerja bisnis. Hal ini berarti, semakin baik inovasi maka pengaruh oreintasi pasar semakin besar terhadap peningkatan kinerja bisnis begitupula sebaliknya

Keywords
orientasi pasar, inovasi, kinerja bisnis.

Topic
Manajemen Pemasaran

Link: https://ifory.id/abstract/zApfNU3GQdCF

Corresponding Author
Dwi Septi Haryani

Institutions
STIE Pembangunan Tanjungpinang

Abstract
Tujuan penelitian ini adalah untuk mengetahui perbedaan persepsi konsumen tentang bauran ritel tradisonal dan ritel modern di kijang kota. Penelitian ini mengunakan sampel 200 orang, dengan menggunakan teknik Purposive Sampling, yaitu teknik sampling dimana peneliti menentukan pengambilan sampel dengan cara menetapkan ciri-ciri khusus yang sesuai dengan tujuan penelitian. Metode yang digunakan dalam penelitian ini adalah metode kuantitatif. Objek penelitian dari penelitian ini adalah masyarakat kijang kota khususnya masyarakat barek motor. Analisa data dalam penelitian ini mengunakan uji kualitas data dan juga uji Indenpendent Sampel t test. Hasil penelitian menunjukan bahwa dari elemen bauran ritel yaitu produk, harga, lokasi, promosi, pelayanan, dan juga suasana toko tidak terdapat perbedaan persepsi setelah dilakukan pengujian dengan tingkat signifikansi 5% atau < 0,05 dan yang terdapat persamaan persepsi hanya di bauran ritel lokasi, dengan hasil pengujian nilai signifikasi 0,635 > 0,05 untuk bauran ritel lokasi.

Keywords
Persepsi Konsumen, Bauran Ritel, Ritel Tradisional, Ritel Modern

Topic
Manajemen Pemasaran

Link: https://ifory.id/abstract/hZma32bdEWnj

Corresponding Author
Hartatiek Hartatiek

Institutions
Department of Physics, Faculty of Mathematics and Science, Universitas Negeri Malang 65145 Malang, Indonesia

Abstract
The excellent properties of hydroxyapatite (Ca10(PO4)6(OH)2) have attracted the interest of researchers and engineers for various applications. Instead of using expensive commercial raw materials, we introduced the use of natural minerals for hydroxyapatite synthesis, precisely the calcite rock from Jember, Indonesia. Our study confirmed that the calcium content in the calcite rock was 98.36%. As a bone substitution compound, hydroxyapatite needs to be composited with polymeric materials, such as polyethylene glycol to improve its mechanical properties. The XRD test results showed that variations in the composition of polyethylene glycol affect diffraction peak intensities, lattice parameters, and grain size of crystalline hydroxyapatite-polyethylene glycol nanocomposites. The density value of the nanocomposites increases with the addition of polyethylene glycol up to 4.29 g/cm3. In addition, the value of hardness also increases with the addition of polyethylene glycol up to 78.50 HVN.

Keywords
hydroxyapatite, polyethylene glycol, nanocomposite, density, hardness

Topic
Functional Materials

Link: https://ifory.id/abstract/RKAa7Xnemyfp

Corresponding Author
Moh Abduh

Institutions
a. University of Muhammadiyah Malang
b. University of Brawijaya

Abstract
The head loss in nonlinear bend caused due to the friction of the wall of bend (Li) and changes in the angle slices of bend (alpha). The elements that influence are velocity (U) number of slices (n), the average length of nonlinear walls (Li), angle changes of slices of bend (alpha), friction coefficients (f), gravitational acceleration (g) and pipes slope (I). Equation 12 gives an overview of the analysis by this research model. The results of the analysis of the equation following the hypothesis made that the discharge and diameter of the pipe are fixed and gives treatment to the number of slices the result that the more the number of slices the value of the coefficient of head loss is getting smaller. When inlet flow passes through the bend, changes in direction and collisions of water particles cause turbulence until the downstream of the bend are quite long and affected by the initial velocity. This method expected to provide optimal benefits related in piping networks, especially main networks with a large diameter of pipes. The head is measurable, fast, easy, and economical in implementation.

Keywords
nonlinear bend; flow direction change; head loss; the numbers of the slice (n)

Topic
Environmentally Sustainable Agriculture

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

Corresponding Author
Sukur Oda

Institutions
a)Regional Development and Planning Study Program Youth Leadership Management,Graduate School, Hasanuddin University Jl. Perintis Kemerdekaan KM.10 Makassar 90245
*Syukur.oda[at]gmail.com
b)Department of Marine Science and Fisheries, Hasanuddin University, Makassar
c)Department of Cultural Sciences, Hasanuddin University, Makassar

Abstract
The research aims to find out 1) the types of marine tourism found in Balobaloang Island, 2) the youth potentials that found in Balobaloang Island. This research is mixed method by using qualitative approaches and quantitative approaches with sequential exploratory models. Data were analysed by using analysis model 3 A (attraction, amenity and accessibility) tourism product offering and Self-Perception Questionnaire which was processed using descriptive statistics and in-depth interviews. The time of this study began April until July 2019 in Balobaloang Island, Pangkep Regency. Research results show 1) In terms of attractions there are 11 remote islands in the Balobaloang Village area, 5 inhabited islands and 6 uninhabited islands which are potential to be used as marine tourism such as mangroves, beaches, snorkelling and diving spots, in terms of accessibility of the island is quite far from Makassar and Pangkep Regency even though the facilities and infrastructure available are still limited in this island. 2) Since 2014 until 2019 around 50 or 20,8% of youth aged 16-30 years from a total population of 240 young people work as employees on tourism industry in tourist areas of Labuan Bajo, Lombok, Bali and Raja Ampat. From the survey results of the youth potential of Balobaloang Island in the tourism sector, most of the 56.07% have a medium potential, while 66.37% of youth have a high potential. Tourist ship competencies have a good score of 46% and 40% have a medium score. Experience has a medium score of 38% and 41% of a high score. Leader competencies have a medium score of 34% and a high score of 44%. Social competencies have a high score of 74% and a medium score of 14%.

Keywords
Tourism potential, Youth Potential, Local Government Policy

Topic
Social and Economy Framework of Energy

Link: https://ifory.id/abstract/DedFqU8YGx3Z

Corresponding Author
Hasbi Hasbi

Institutions
1Department of Animal Production, Faculty of Animal Science, Hasanuddin University, Jl. Perintis Kemerdekaan Km.10, Makassar 90245, Indonesia
2Department of Animal Husbandry, Faculty of Animal husbandry and Fisheries, Universitas Sulawesi Barat, Jl. Prof. Dr. Baharuddin Lopa, Tande Timur, Majene, 91412
*srigustinasain[at]gmail.com

Abstract
This study aims to determine the ability of in vitro embryo cleavage of Bali cattle 48 hours after the fertilization process based on different ovarian reproductive status. Ovaries from abattoirs are grouped into four categories: ovaries without corpus luteum and dominant follicles (-CL and -FD), without corpus luteum and with dominant follicles (-CL and + FD), with corpus luteum and without dominant follicle (+ CL and -FD), and with corpus luteum and dominant follicles (+ CL and + FD). After that, oocytes are collected by slicing and only oocytes with a cytoplasmic are homongent and have compact cumulus cells used in the study. The selected oocytes are then matured in an incubator of 5% CO2, a temperature of 38.5 °C for 24 hours. After maturation, in vitro fertilization was carried out using TALP media with a final concentration of spermatozoa 1.5 x 106 spermatozoa/ml. Oocytes 5-6 after fertilization were washed 3 times using CR1aa media then cultured in 5% CO2 incubator, temperature 38.5 °C for 48 hours. After 48 hours the culture was evaluated for the ability of embryo cleavage. The results showed that the number of embryos capable of cleave to stage 2 cells were not significantly different (P>0.05) in all treatments (1.64 ± 0.38% vs 8.00 ± 0.90% vs. 4.85 ± 0.96% vs. 8.22 ± 1.86%), while the number of embryos capable of cleave reached stage 4 cells (11.48 ± 0.82% vs 24.00 ± 2.64% vs. 24.27 ± 2.23% vs. 10.96 ± 0.69%), 8 cells (11.48 ± 1.15% vs 8.00 ± 1.07% vs. 26.21 ± 2.79 % vs 15.07 ± 1.40%), 16 cells (0.00 ± 0.00% vs 1.33 ± 0.38% vs. 4.85 ± 0.76% vs. 1.37 ± 0.38%), and the ability of embryos cleavage (24.59 ± 11.60% vs 41.33 ± 24.32% vs. 60.19 ± 22.45 % vs. 35.62 ± 10.83%) was significantly higher (P<0.05) in the ovaries with corpus luteum and without dominant follicles (+ CL and – FD). Conclusion, the ability of embryo division to reach 4 cells, 8 cells, and 16 cells after 48 hours culture was higher in the ovaries with corpus luteum and without dominant follicles (+ CL and – FD).

Keywords
Embryos cleavage, ovarian reproductive status, Bali cattle.

Topic
Animal reproduction

Link: https://ifory.id/abstract/R8kCHDWXp23L

Corresponding Author
Ibnu Budiman

Institutions
Wageningen University

Abstract
The use of firewood for energy sources for cooking contributes to socio-ecological issues. Alternatively, biogas is considered an environmental-friendly energy source generated from waste, forest plants and other organic sources. However, until 2015, only 1.24 percent of households utilized biogas for cooking fuel. This research aims to explore the landscape of biogas governance in Indonesia, its fragmentation, and its consequences for biodigester dissemination. This qualitative study found that there is fragmentation within small-medium scale national biogas programs in Indonesia. Seven national government biogas programs have similar governance arrangement and characteristics; scattered in different departments within the ministry, using the grant approach and vendor, coordinating with local government, and do not have proper training and M&E. Meanwhile, the NGO program-BIRU utilizes semi-commercial approach; collaborating with multiple stakeholders (governments, construction partner organizations, cooperatives, and private sectors-companies and banks); and has standardized training and after sale services. Within those biogas programs, there are multiple barriers along the supply chain process of biodigester dissemination (production and consumption-related to socio-cultural issues) and governance aspects. Barriers to production and consumption relate to the governance aspect of biogas programs. Fragmented governance affected the capability of each program to tackle barriers in biogas digester dissemination and triggered innovation in different biogas programs.

Keywords
bioenergy, biogas, governance, program, fragmentation

Topic
Renewable Energy

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

Corresponding Author
Anom Trenggana

Institutions
(a)Theoretical Physics Laboratory, THEPI Division, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung 40132, West Java, Indonesia
*anomtrengganad[at]student.itb.ac.id
(b) Indonesian Center for Theoritecal and Mathematical Physics (ICTMP), Jl. Ganesha 10 Bandung 40132, West Java, Indonesia

Abstract
We investigate the effect of quantum entanglement betwen n-causally disconnected universes by calculated the power spectrum of vacuum fluctuation. To investigate it the general and specific (GHZ and W) form of n-entangled state are used. We found that the power spectrum has the maximum value when the state is near to pure one particle state. For the specific form, the power spectrum of W state is equal to pure vacuum state when the amount of n-causally disconnected universes is near to infinite and for GHZ state the power spectrum has same value for every n-causally disconnected universes.

Keywords
Entanglement;Power Spectrum;Vacuum Fluctuation

Topic
Theoretical High Energy Physics

Link: https://ifory.id/abstract/4qWRfjmUHvbK

Corresponding Author
Mimi Arifin

Institutions
1) Urban and Regional Planning, Engineering Faculty, Hasanuddin University, Indonesia
2) Housing and Settlement Laboratorium, Engineering Faculty, Hasanuddin University, Indonesia

Abstract
It has become an international value, the importance of creating an inclusive, friendly, safe and comfortable city for everyone. This is the background of researching the level of inclusive residential real estate in Makassar City. Most of the functions of the area from a city area are settlements so if you want to measure the level of inclusiveness in a city, you can do it in residential areas in the city. The analytical method used is a combination of qualitative, quantitative and spatial. The results showed that of 272 residential real estates in the city of Makassar, 1% had a high level of inclusiveness, 11% had a moderate level of inclusiveness, and 88% had a low level of inclusiveness.

Keywords
City, Inclusive, Real Estate Housing

Topic
Urban & Transportation Sustainability

Link: https://ifory.id/abstract/HLnKBYN9XQ4w

Corresponding Author
Meqorry Yusfi

Institutions
a) Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, Indonesia
*meqorryyusfi[at]sci.unand.ac.id
b) Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung, Bandung, Indonesia
c) Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Padang, Indonesia

Abstract
The adsorption of C2H2 and C2H4 gas molecules on Ni-doped singe-wall carbon nanotubes (Ni-CNT (10,0)) was investigated using Density functional theory (DFT). To discover the highest binding energy, three Ni-CNT configurations that are bridge, hollow, and top position of Ni on CNT were calculated. The Ni on the bridge configuration was found to be the most stable configuration based on binding energy and Ni-C bond length analysis. As addition of Ni to CNT, the band gap energy of CNT becomes narrower from 0.879 eV to 0.289 eV. The C2H4 adsorption energy was acquired stronger than C2H2 which resulting a smaller band gap. Also, the geometry change of the gases/Ni-CNT was investigated in this research. This result would be useful to proposed Ni-CNT as an active material for hydrocarbon gas sensor.

Keywords
CNT, Ni, Adsorption energy, DFT, band gap

Topic
Computational Physics

Link: https://ifory.id/abstract/gTLEvpq9cu6Y

Corresponding Author
Hamja Abdul Halik

Institutions
a) Student Doctoral Program in the Postgraduate School of Hasanuddin University, Makassar, Indonesia &Lecturer Faculty of Agriculture, Andi Djemma University, Palopo, Indonesia *hamjarisda[at]gmail.com
b)Department of Agricultural Socio-Economics, Faculty of Agriculture, Hasanuddin University, Makassar, Indonesia
c)Department of Fisheries Faculty of Marine Science and Fisheries, Hasanuddin University, Makassar, Indonesia

Abstract
The livelihood strategy is fundamental in the lives of residents, including Torani fishermen as an effort to survive or improve their standard of living. The sustainability of the Torani fishermens livelihood pattern is related to the social formation in the mode of production (production power and production relations) that takes place. This research aims to analyze the relationship between the mode of production with a livelihood strategy that is carried out for the sustainability of Torani fishermen in Takalar district. This research develops a Pospositivistic paradigm of descriptive research through a qualitative method using a case study design. Data was collected and analyzed according to the instructions of qualitative research through three stages of activities, namely 1). Data reduction 2). Data exposure and 3). Conclusion and verification. The results of the study indicate that the mode of production that takes place in the torani fishing community is the capitalist mode of production and the non-capitalist mode of production, where the capitalist mode of production dominates the non-capitalist mode of production. The two modes of production provide different income results and become the basis for making a choice of livelihood strategies. Some choices of livelihood strategies that have been carried out are survival strategies, consolidation strategies, accumulation strategies and diversification strategy

Keywords
Mode of production, sustainabiity, Torani fishermens

Topic
Agriculture system

Link: https://ifory.id/abstract/6DkpAuvjz9hm

Corresponding Author
Arung Bahari Muslim

Institutions
a)Department of Physics, Faculty of Mathematics and Natural Sciences,
Institut Teknologi Bandung (ITB), Jl. Ganesha 10 Bandung, 40132, Indonesia
b)Research Center for Nanosciences and Nanotechnology (RCNN),
Institut Teknologi Bandung (ITB), Jl. Ganesha 10 Bandung, 40132, Indonesia
c)3Department of Chemistry, Universitas Pertamina,
Jalan Teuku Nyak Arief, Simprug, Jakarta, 12220, Indonesia
*ferry[at]fi.itb.ac.id

Abstract
Synthetic zeolite is one of materials that frequently use as a catalyst in aquathermolysis reaction for non conventional oil. The reason is because zeolite has pore structure, high selectivity, high stability, high specific area and has an acid Bronsted site. The mechanism of zeolite as a catalyst is by donating hydrogen from acid Bronsted site to the heteroatom (Sulfur,Nitrogen and Oxygen) bond in the non conventional crude oil which has been lysis in aquathermolysis reaction. However the hydrogen donor synthethic zeolite comes only from the acid Bronsted site. To improve the hydrogen donor in aquathermolysis reaction, we decided to cation exchanged the NaX by co-precipitation method. Cation exchanged process occurs by replacing the Na cation of the NaX with NH4, Therefore the amount hydrogen donor of the zeolite was increased for aquathermolysis reaction. The result of this research showed that NaX with 7 days of aging could increase the API Gravity heavy crude oil from 17 to 25. The composition samples and crystallinity of samples were characterized using Fourier Transform Infared (FTIR) spectroscopy and X-Ray Diffraction (XRD). The increasing amount of API Gravity of the heavy crude oil also shows that the heavy crude oil after aquathermolysis using NaX has higher quality crude oil.

Keywords
Aquathermolysis; Cation Exchanged; Enhanced Oil Recovery; Non Conventional Oil; and Zeolite

Topic
Condensed Matter Physics

Link: https://ifory.id/abstract/CMkvUL9dR4Yg

Corresponding Author
Adhitya Gandaryus Saputro

Institutions
a) Engineering Physics Program, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl.Ganesha 10, Bandung 40132, Indonesia
b) Advanced Functional Materials Research Group, Institut Teknologi Bandung, Jl.Ganesha 10, Bandung 40132, Indonesia
c) Research Center for Nanosciences and Nanotechnology, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia
d) Engineering Physics Program, Institut Teknologi Sumatera (ITERA), Jl Terusan Ryacudu, Lampung 35365, Indonesia

Abstract
Research on the reduction of carbon dioxide (CO2) level in the atmosphere has become one of major research topics worldwide. One of those researches is to convert CO2 into other valuable chemical substances such as methanol and formic acid through hydrogenation process. However, by using conventional industrial catalysts such as Cu-based catalyst as an agent for CO2 hydrogenation, the cost of reaction can be very energy taxing due to the inability of the catalyst to interact properly with CO2 molecule. Recently, many researches regarding new catalysts emerge such as Ni-based catalysts. In this study, we try to use small size Ni cluster supported on graphitic material as an alternative for CO2 hydrogenation catalyst. As an initial step, we study the ability of the supported Ni cluster to interact with CO2 molecule utilizing density functional theory-based calculations. We find that CO2 molecule can be strongly adsorbed on the Ni-Ni site of the supported Ni cluster with a bidentate adsorption configuration. The formation of this CO2 bidentate adsorption configuration will reduce the required activation energies for the subsequent CO2 hydrogenation reaction steps.

Keywords
CO2; Nickel cluster; graphene; adsorption; density functional theory

Topic
Condensed Matter Physics

Link: https://ifory.id/abstract/uRhvpP7mWyqJ