Indonesia Conference Directory

Corresponding Author
Rediana Setiyani

Institutions
Faculty of Economics, Universitas Negeri Semarang

Abstract
This paper examines the student learning experience and engagement in taxation course using blended learning. Blended learning is a combination of face-to-face learning experiences and online learning experiences which aim to complement each other in order to support and enhance student learning. This paper presents the research findings questionnaire surveys of the students who currently study taxation course in Faculty of Economics, Universitas Negeri Semarang. The students find that blended learning gives greater flexibility of being able to complete assignments any place and any time. With the adoption of a wide range of delivery methods, blended learning can successfully improve learning experience and enhance their student engagement. It represents an opportunity to integrate the innovative and technological advances offered by online learning with the interaction and participation offered in the best of traditional learning (face to face). Face to face interaction with students is important as students require reassurance and on-going support from lecturers. Providing training for students to use ELENA software in order to equip them to fully utilize blended learning is also essential. Finally, allocation of internet capacity and resources for the development and maintenance of ELENA is also key to its success.

Keywords
blended learning, learning experience, student engagement, taxation

Topic
Economics Education (Accounting, Cooperative and Office Administration Education)

Link: https://ifory.id/abstract/9xGFRuP4wNrW

Corresponding Author
Yasuji Muramatsu

Institutions
University of Hyogo

Abstract
To analyze the local structure of non-benzenoid rings in graphitic carbons by soft X-ray absorption spectroscopy, CK-XANES of aromatic compounds having pentagonal or heptagonal rings were theoretically analyzed by the first principle calculations. Edge-carbon atoms split the π* peak into two peaks in CK-XANES. Pentagonal rings in polycyclic aromatic hydrocarbon structure disturb delocalization of π electrons in hexagonal rings. Hence, pentagonal rings split the π* peak into two peaks in CK-XANES. It is also confirmed that heptagonal rings play a role of a hole in hexagonal carbon layer, and the heptagonal carbon atoms can be regarded as edge carbon atoms. Hence heptagonal rings also split the π* peak into two peaks. Consequently, edge-carbon atoms and non-benzenoid rings make the π* peak wider than hexagonal rings.

Keywords
Soft X-ray, XANES

Topic
Polymer

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

Corresponding Author
fitriani reyta

Institutions
a,c ) Faculty Business and Management Widyatama University
Jalan Cikutra 204a Bandung, West Java, Indonesia
b) Faculty Information Technology Widyatama University
Jalan Cikutra 204a Bandung, West Java, Indonesia

Abstract
Getting education and entrepreneurship is a right of all citizens, the education system when it has used a computer media and information assistance technology, with this technology all levels of society participate in advancing and developing the potential that exists in them. The development and use of information facilities is now easily accessible and used as an example, information media is used as a media news search, supporting educational activities and for online sales facilities, better known as e-commerce websites. The parameters of an E-Commerce Website generally have a standard criterion which is having an attractive feature menu, providing related and up-to-date news content, for people who are physically normal they will easily use all the websites of an e-commerce website, they can buy goods online or use the media to sell merchandise, because e-commerce media has an advantage that is easy to promote goods and services and there is no need for meetings between buyers and sellers. The problem faced today is that the e-commerce website does not have a feature intended for persons with disabilities, where using standard features available in e-commerce today will be difficult, disability has the same rights in using an information media, in this journal a website system will be developed that can be used for persons with disabilities, a website will be added with a voice feature that will be used as a material to help guide media when the website is opened. The feature does not use too many menus so that it is easy to use, the voice feature is made in a button action so that the purchase process from an e-commerce website is easier.

Keywords
E-Commerce, Online Shopping, Disability

Topic
STEM EDUCATION

Link: https://ifory.id/abstract/2XfD4zRBnr8u

Corresponding Author
Ikmanda Nugraha

Institutions
International Program on Science Education, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia

Abstract
It has been noted that a positive human–nature relationship is important to prevent and counter environmental problems. Ecology and Environmental Sciences is one of the courses provided by science education program in the Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia. The course focused on knowledge and attitudinal outcomes to promote students connectedness with nature. The objective of this study to investigate whether environmental education provided by this course can help promote and sustain students connectedness with nature. With a pre- and post-test design, we assessed a comprehensive in two-day modules in a field trip framework, which included hands-on indoor (classroom) and outdoor (mangrove and marine ecosystem) using -Inclusion of Nature in Self- scale (INS) to monitor shifts in reported connectedness with nature. Twenty-three students (prospective teacher students) participated in this study. We found that participating in the course resulted in a robust short-term increase in connectedness with nature scale. Therefore, strengthening connectedness to nature is an essential factor to sustain an environmental education in the schools by providing science teachers who have a strong connectedness to nature.

Keywords
connectedness with nature, environmental education, field trips

Topic
BIOLOGY EDUCATION

Link: https://ifory.id/abstract/MKE6h23LFqkX

Corresponding Author
Wahono Widodo

Institutions
Universitas Negeri Surabaya

Abstract
Scientific literacy is an important ability for all teachers, but research on scientific literacy for non-science major prospective teachers is rarely. This study aims to obtain essential indicators of scientific literacy for non-science major prospective teachers. This research is a qualitative study, with the focus group discussion (FGD) method. The FGD panel was selected from literacy experts (scientific, linguistic, numerical) and education experts. The instrument is an initial question sheet to the panelists, which then develops in the discussion. Data were analyzed qualitatively, with the stages of data reduction and taxonomy. The results of the study show that the non-science major teacher candidates still need scientific literacy skills. This ability is mainly in the aspect of attitude (the willingness to follow the development of science) and the epistemic aspects of scientific literacy. The subjects that can be used to improve this ability are mainly Basic Natural Sciences and other relevant subjects.

Keywords
scientific literacy, non-science major prospective teacher.

Topic
SCIENCE EDUCATION

Link: https://ifory.id/abstract/hQjbkLRvxFe7

Corresponding Author
ANNA PERMANASARI PERMANASARI

Institutions
SCIENCE EDUCATION PROGRAM, SCHOOL OF POSTGRADUATE STUDIES- UNIVERSITAS PENDIDIKAN INDONESIA

Abstract
Using local indigenus in science learning is a very prospective to enhance science literacy. Indonesia has so many local indigenus related to science; those can be used as a bridge for enhancing science literacy as well as environmental literacy. The study has done to implement science learning based on local indigenus in one of district at Sumatra Island, namely Lubuak Larangan (a part of prohibition area in a river). The method used was descriptive lesson analysis followed by weak experiment method to picture the science literacy on environment perspectives. The research shows that using lubuak larangan as a theme in science learning makes student learning science more meaningful. The real phenomena makes student gave more attention to learn, easy to understand science behind the context, and make student aware to their environment. The good learning atmosphere makes the better science literacy of student. The increase of literacy was shown, from functionally literacy to operationally literacy level.

Keywords
Science learning, Local indigenus, environmental literacy

Topic
SCIENCE EDUCATION

Link: https://ifory.id/abstract/tdyURn6YzXFk

Corresponding Author
Betharia Sembiring Pandia

Institutions
English Applied Linguistics Study Program
Postgraduate School
State University of Medan

Abstract
The aim of any genre of writing is an important aspect that needs to be considered by writers. However, keeping the aim of the writing is not enough. As writing is meant to be read by readers, a writer needs to consider who their intended readers are. In line with this idea, the objective of this study is to investigate the undergraduate students ways of persuading readers in their argumentative writing. This study uses three kinds of cognitive consideration in writing argumentative text (Connor, 1991) that involve (a) readers domain knowledge and text structure; (b) readers attitude toward the subject; (c) textual cues; and (d) reasoning. The data of this study is gathered by using elicitation technique asking the subjects, the 8th semester of undergraduate students, to write under predetermined topic Social media should be banned with three intended readers, they are: Junior High School, Senior High School, and Undergraduate students. This study reveals that the subjects in EFL context only have two kinds of cognitive consideration in writing argumentative text, they are: (a) readers domain knowledge and text structure; and (b) reasoning. These kinds of consideration are applied across all intended readers. It means that the subjects do not have specific cognitive considerations for specific readers. Keywords: cognitive, argumentative, writing, persuasive

Keywords
cognitive, argumentative, writing, persuasive

Topic
Social,Language and Cultural Education

Link: https://ifory.id/abstract/GRWpZ3TnXUg8

Corresponding Author
Ahmad Fauzi

Institutions
a) Postgraduate Program
Biology Education
Universitas Negeri Medan

b) Postgraduate Program
Biology Education
Universitas Negeri Medan

c) Postgraduate Program
Biology Education
Universitas Negeri Medan

Abstract
This study aimed to determine the effect of learning models on students: (1) cognitive skill and (2) critical thinking skill in the Ecosystem topic at SMA Bhayangkari 1 Medan. The method used is quasi experiment research with a sample of 3 classes randomly determined using cluster random sampling technique. X1 class was taught by Inquiry Learning model, X2 class was taught by Group Investigation Learning model, and X3 class was taught by Conventional model. The test instruments in this study were tests of cognitive abilities in the form of multiple choices, tests of critical thinking skills in the form of essay tests. The data analysis technique used ANACOVA with SPSS 21.0 for Windows program. The results of the study showed that there were influences of learning models on: (1) students cognitive skill (F = 5.14, P = 0.01) and (2) students critical thinking skill (F = 63.49, P = 0.00). The students cognitive skill who were taught with Inquiry Learning model were not significantly different from Group Investigation Learning model and not significantly different from those taught in Conventional model. The students critical thinking skills were taught by the Inquiry Learning model differed significantly from those taught in Group Investigation Learning model, and were not significantly different from those taught by Conventional model. The follow-up of the results of this study was expected to teachers to be able to apply Inquiry learning model and Group Investigation learning model to Ecosystem topic in an effort to improve Cognitive Skill and Critical Thinking Skill of students at the schools.

Keywords
Inquiry; Group Investigation; Conventional; Cognitive Skill; Critical Thinking Skill; Ecosystem

Topic
Teachers Education Model in Future

Link: https://ifory.id/abstract/MAN9qKn8Dert

Corresponding Author
Ayyub JW Prayogi

Institutions
a) Postgraduate Program
Biology Education
Universitas Negeri Medan

b) Postgraduate Program
Biology Education
Universitas Negeri Medan

c) Postgraduate Program
Biology Education
Universitas Negeri Medan

Abstract
This study aimed to determine the effect of Guided Discovery and STAD learning models on students: (1) critical thinking skill; (2) scientific process skill in grade X of MAPN 4 Medan. The research method used was quasi-experimental with a sample of 3 classes determined by cluster random sampling. X-1 class was taught by Guided Discovery learning model, class X-3 was taught by STAD learning model and class X-2 (control) was taught by conventional learning model. The research instrument used was a test instrument for the results of critical thinking skill and scientific process skill in the form of essay tests. The data analysis technique used was Covariate Analysis (ANACOVA) at a significance level of a = 0.05 by using SPSS 21.0. The results showed: (1) there was a significant effect of the learning model on students critical thinking skill (F = 4.410; P = 0.015). The results of students critical thinking skill who were taught by the Guided Discovery learning model were not significantly different with the STAD learning model but differed significantly with conventional learning model and students critical thinking skill who were taught by the STAD learning model were not significantly different with conventional learning model. (2) there was a significant effect of the learning model on scientific process skill. The students scientific process skill who were taught by the Guided Discovery learning model were not significantly different with the STAD learning model but differed significantly with the conventional learning model and the students scientific process skill who were taught by STAD learning model differed significantly with the conventional learning model. As a follow-up of the results of this study it was expected that teachers can apply Guided Discovery and STAD learning models to environmental pollution topic in an effort to improve the results of students critical thinking and scientific process skill.

Keywords
Guided Discovery; STAD; Critical Thinking Skill; Scientific Process Skill

Topic
Teachers Education Model in Future

Link: https://ifory.id/abstract/kNQ4bZxqfgJP

Corresponding Author
Nova Yanti Sinaga

Institutions
a) Mathematics Education, State University of Medan
Jl. Willem Iskandar/ Pasar V, Medan 20221, Indonesia
*novaysinaga[at]gmail.com
b) Faculty of Mathematics, State University of Medan
Jl. Willem Iskandar/ Pasar V, Medan 20221, Indonesia

Abstract
The purpose of this study was to find out: (1) Differences in mathematical problem solving ability of students who are given guided discovery learning and cooperative learning STAD type, (2) Interactions between learning models (guided discovery learning and cooperative learning STAD type) with students gender on mathematical problem solving ability. The population in this study was all eighth grade students of SMP Negeri 13 Medan academic year 2018/2019. The sample was taken randomly in two selected classes which were class VIII-1 as experimental class-1 and class VIII-2 as experimental class-2, each amounting to 32 students. The research instrument used was a test of problem solving ability. Data was analyzed with two-way Anova. The results of this study show that (1) There are differences in mathematical problem solving abilities between students who are given with guided discovery learning and those who are given with cooperative learning STAD type, (2) There is interaction between learning models (guided discovery learning and cooperative learning STAD type) with students gender on students mathematical problem solving ability.

Keywords
Mathematical Problem Solving Ability; Guided Discovery Learning; Cooperative Learning STAD Type

Topic
Mathematics,Science and Nursing Education

Link: https://ifory.id/abstract/N8cWLZaBp7KC

Corresponding Author
Bambang Dwi Hasto S

Institutions
Faculty of Law
Borobudur University

Abstract
In various cases of health service disputes, medical records have a very important role in the aspect as evidence in court. The better the medical record, the more legal protection will be given to patients, doctors and hospitals. Medical records are often used as a basis for defense / legal protection for doctors. Medical records are files containing records and documents about patients identities, examination result, treatment program and other medical measures in health care facilities. Legal problems often arise that are directly related to the management / treatment of their Medical Record. The value of Medical Record are called as "ALFRED VALUES" which is interpreted: Adrministrative value, Legal value, Financial value. Reseach value, Eduvation value and Documentation value. Medical record can function as a legal document, namely as a valuable evidence as an expert witness but its depend on judge decision. Sometimes, Medical Record can be use as a key witness to dispute resolution in health services both in hospitals and in individual clinics. Medical record can be used as a basic data to prove the presence or absence of errors. The position of the medical record is very dependent on the judges judgment. The judge greatly determines the relevance and position of the medical record at the trial. Medical records are also very important for evaluating health services and evaluating staff performance in order to reduce morbidity and prevent mortality.

Keywords
Keywords : Medical Record, Medical disputes

Topic
Administratif Law

Link: https://ifory.id/abstract/2vKQ8LEdHaMc

Corresponding Author
Muhammad Anif Afandi

Institutions
Student at Master of Islamic Economics and Finance, Study Program of Islamic and Middle East Studies, School of Strategic and Global Studies, Universitas Indonesia, Salemba Raya Street Number 4, Central Jakarta, Indonesia
afandianif[at]gmail.com

Abstract
Islamic economic principles, well-being, is in accordance with Sustainable Development Goals (SDGs) program which is not only concerning on commercial aspects but also social aspects. Islamic banking as one of the parts of Islamic economic should carry out its operational activities based on that principle. Then, this paper aims to examine the effects of Islamic bank financing on quality of life measured by Human Development Index (HDI) in the provinces on Java Islands, Indonesia. To examine of that then used panel data regression using random effects model. The results showed that Islamic bank financing consisting by working capital, investment and consumption provide non-significant effects on HDI. However, dummy SDGs provides significant effects on HDI or in other word SDGs program starting on 2015 can trigger improving quality of life as big as 0.029 point. In addition, each independent variable can explain their dependent variable as big as 70.9 percent and the remaining is 29.1 percent influenced other variables outside the model.

Keywords
Islamic Bank Financing, HDI, SDGs, REM, Java Islands

Topic
Islamic Finance and Banking

Link: https://ifory.id/abstract/heu2fzYxHCp3

Corresponding Author
kiki hardiansyah siregar

Institutions
a) School of Economic, International Business Management Indonesia, Medan, North Sumatera, Indonesia
* qq.hardiansyah017[at]gmail.com
b) Faculty of Economic, State University of Medan, Medan North Sumatera, Indonesia

Abstract
This research to analyze the market structure of the Islamic banking in Indonesia according to the Panzar-Rosse model and the level of competition between Islamic bank. To find out the market structure of the islamic banking it must be analyzed the effect of EAR, NPF, BOPO, FAR, FS, PL, PFF, PCE measured by ROA. The is used secondary data for a period of 6 years using the selected panel data method. The analysis model related to market structure use the Panzar-Rosse model by looking for the H-statistic value and identified the Islamic banking equilibrium test on the panel data model of the performance of islamic bank. The result found that the performance measured by ROA simultaneously affected EAR, NPF, BOPO, FAR and FS and Panzar-Rosse will produce H-Stat value which is the sum of three main coefficients of banking inputs. With H-Stat valued at 0.735 can be concluded that the islamic banking into the category of monopolistic market. The levels of the Islamic banking of Bank BNI, Bank BRI, Bank Panin and Bank Bukopin are monopolistic market while Bank Muamalat and Bank Mandiri are directed towards a joint monopoly market in the position of long-term equilibrium.

Keywords
islamic banking industry, Panzar-Rosse test, h-stat, monopolistic market

Topic
Islamic Finance and Banking

Link: https://ifory.id/abstract/mT8bZ4MHJKxD

Corresponding Author
Genta Kuno

Institutions
Graduate School of Asian and African Studies, Kyoto University, Kyoto, Japan

Abstract
Portal, the semi-permanent gate that usually closes at night is an object can be found in the corner of almost any kind of residential streets in Jakarta. One of the characteristics of these gates is that they proliferate in wealthy as well as poor neighborhoods. Although only a few have paid attention to the existence of the practice of gating itself in the city (Kim, 2002; Simone, 2014), indiscriminate spread of security zone in an urban setting is said to be caused by an increase in sense of insecurity that does not recognize class (Blakely and Snyder, 1995; Hishiyama, 2010), and particularly in Jakarta, riot in May 1998 is assumed as the trigger of the emergence of this fortress spatial patterns in all over the city (Colombijn, 2016 p. 15; Kim, 2002; Taddie, 2009). However, the emergence and the initiative behind this practice is still unclear in many aspects especially since such observation failed to recognize that the practice of gating is also closely related to neighborhood associations (RT/RW) that spread universally as a lowest administrative unit and may exercise informal authority over the matter of local security in their territories. This paper tries to shed a light on the hitherto unclarified trajectory of the proliferation of the Portals, which also predicated upon two distinctive yet parallel socio-political transformation in grassroots level, namely 1). the decentralization of local security that enable the dynamic formation of alley-level authority, and 2). the intensification of daily transportation in the city that bring the disruptive material and immaterial flows into residential realm.

Keywords
Transportation, Urban Gating, Community, Portals, Local Security

Topic
Local Politics and Decentralization

Link: https://ifory.id/abstract/cm4p7eqZPJMT

Corresponding Author
Juventus W.R Ginting

Institutions
Experimental Station for Coastal Engineering Ministry of Public Works and Housing

Abstract
Revetment Sistem Panel Serbaguna (SPS) or Schematic System Precast (SPS) Revetment is latest innovation of SPS technology. It that has been applied for various area of civil engineering such as bridge, dams and irrigation channel. For this upgrading, SPS has been tested in Hydraulic Laboratory of Experimental Station for Coastal Engineering Ministry of Public Works and Housing as revetment. SPS is tested with 14 scenarios of various wave steepness and water depth to determine the wave run-up characteristic. All hydraulic performance of SPS for each scenario is recorded with video camera. Using image processing technique, we calculate the wave run-up height for each scenario. From all scenarios, the wave run-up only happen in scenarios with water depth of 0.65 m while the rest only experience wave overtopping. Comparing to the classical Iribarren Number graph, relative wave run-up height on SPS revetment is higher than other type of revetment such as Riprap Arhens, Riprap Gunbak, Batu Pecah, Qudripod, Dolos and Tetrapod but below Sisi Miring. For Sisi Miring Revetment, the maximum relative wave run-up height (Ru/H_m0) is 2.5 for Iribarren Number (Ir) = 2.5 as for SPS revetment, it is approximately 2.4 for Ir = 11.

Keywords
wave run-up, imaging analysis, Iribarren Number, non dimensional wave run-up height

Topic
Ocean Engineering and Technology

Link: https://ifory.id/abstract/2g9YZqbvrhHF

Corresponding Author
Juventus W.R Ginting

Institutions
Experimental Station for Coastal Engineering Ministry of Public Work and Housing

Abstract
Hydraulic Test has been performed by Experimental Station for Coastal Engineering Ministry of Public Works and Housing to analyze the scouring pattern of Revetmen Sistem Panel Serbaguna (SPS) or Schematic Precast System (SPS) Revetment. There are 14 scenarios of experiment with different value of wave steepness and water depth. Scouring data is acquire through video recording which is later analyzed by image processing. In general, relative maximum scouring (Smax) and is about 0.6 of its significant wave height (Hsig). This is also the case for relative toe scouring (Stoe). For various wave steepness, Smax is no more than 0.31 of its toe depth (ht) whereas maximum scouring distance from its toe (Xmax) is no more 0.14 of the wavelength.

Keywords
, maximum scouring, maximum scouring distance, toe depth, image processing

Topic
Ocean Engineering and Technology

Link: https://ifory.id/abstract/CT9GtFxfgaUw

Corresponding Author
Sukiri Yono

Institutions
Sriwijaya University

Abstract
The aim of this study was to see the collaboration of students through the lesson study for learning community (LSLC) on circle material. The subject of this study was a eight-grade studentsat SMP 1 Palembang. The method of this study quantitative descriptive by using a survey method with the PMRI approach. Data is obtained through observation of student activities documentation of events in the classroom, in the form of photos and videos, and collection of student tasks. Stages of LSLC is Plan, See, Do and Re-Design. The learning process is carried out with two activities, each activity consists of Sharing tasks and Jumping tasks. In sharing tasks, students work on sharing activities in groups, while in jumping students do the questions individually and the problem has been raised from the previous level. The use of LSLC gave a positive impact on students of class VIII in SMP N 1 Palembang on circle material. Positive impacts that arise include raising a sense of care for friends, reducing competition and collaboration between students in learning.

Keywords
Circle material, LSLC, PMRI

Topic
Mathematics Education

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

Corresponding Author
Farid Dwi Murdianto

Institutions
Politeknik Elektronika Negeri Surabaya

Abstract
This paper shows that the design and implementation of a parallel full bridge DC-DC converter for a maximum power point tracker (MPPT) system with an incremental conductance method. This system consists of a parallel full bridge DC-DC converter that will increase the output voltage of solar panels with a power of 3x200 WP. The output voltage of the converter will be converted into AC voltage by single phase inverter by using SPWM switching. The results of this system will be used to supply the water pump loads with a power is 125 watts and a frequency of 50 Hz. The system used is able to increase the output power of solar panels with an average value of 19.68% for a 100 watt incandescent lights arranged in series, the load using a water pump with no load conditions that is equal to 35.91%, while the load using a water pump with load conditions that is equal to 21.19%.

Keywords
Incremental Conductance, MPPT, Parallel Full Bridge DC-DC Converter, Single Phase Inverter

Topic
Renewable Energy

Link: https://ifory.id/abstract/9kK38jqEPzmh

Corresponding Author
Farid Dwi Murdianto

Institutions
Politeknik Elektronika Negeri Surabaya

Abstract
Solar energy is one alternative energy that can be used as a source of electrical energy that is converted through solar panel media. The output power in the solar panel varies according to solar irradiation and ambient temperature. To optimize the performance of the Solar Panel, the Maximum Power Point Tracking (MPPT) method is used. Output voltage regulation of the solar panel will be regulated by a parallel buck converter. The algorithm used in this paper is Modified Hill Climbing (MHC) which is used to find the maximum power point quickly and accurately. With the existence of MPPT MHC, the average power is 90.16 W which shows an increase power compared to without MPPT which is equal to 55.78 W.

Keywords
Solar Panel, Parallel Buck Converter, Maximum Power Point Tracker (MPPT), Modified Hill Climbing (MHC)

Topic
Renewable Energy

Link: https://ifory.id/abstract/ykB6DL9rEFRe

Corresponding Author
- Fithriyah

Institutions
Faculty of Economics and Business-Airlangga University

Abstract
Indonesia has faced many natural disasters after the great earthquake and tsunami hit Aceh in 2004. These disasters have affected men, as well as the women. However, the impact of disasters to women and elderly are worse than to men. Indonesia has policies and information kits for earthquake and tsunami preparedness, but it is still not well disseminated to the community, especially for women and elderly. This paper is focusing in increasing the knowledge of women and elderly in earthquake and tsunami preparedness in Indonesia, in order to reduce the numbers of its victims and death tolls. This is a literature review, based on the lessons learned from Japan. The study shows that optimizing the existing self-motivated group/ community organizations would be more effective in order to increase the tsunami and earthquake preparedness for women and elderly in Indonesia.

Keywords
disaster preparedness, earthquake, tsunami, women and elderly

Topic
Sustainable Development

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

Corresponding Author
Hernani Hernani

Institutions
1Department of Chemistry Education, Indonesia University of Education

Abstract
Ionic polymer metal composite (IPMC) is one type of artificial muscle technology. This demonstration IPMC based on ionic liquid has the potential to introduce four main aspects of VNOST, such as (1) the characteristics of science and technology, (2) the aim of science and scientific research, (3) the characteristics of scientific knowledge and scientific theories, and (4) the relationship between science and technology. Like the main purpose of VNOST, the introduction of this IPMC based on ionic liquid is not only introducing technology, but introducing the link between technology and science, especially chemistry content. Context-related chemistry content that is at the stage of making chitosan sulfonate membrane involves chemistry contents in the form of solution pH, Lewis base acid theory, sulfonation reaction, substitution reaction, and conductivity. In addition, the stages of the membrane actuation mechanism involve chemistry contents in the form of electrostatic forces, electrolytes, hydrolysis and the relationship of the melting point with the molecular weight.

Keywords
Artificial muscle of Ionic Polymer Metal Composite (IPMC), ionic liquids, demonstrations, pre-service teachers-, dan VNOST (View Nature of Science and Technology).

Topic
Biology Education

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

Corresponding Author
Anwar Dolu

Institutions
1. Universitas Tadulako,
2. Institut Teknologi Bandung

Abstract
Indonesia merupakan negara yang sangat rawan bencana, baik itu bencana banjir, angin maupun gempa bumi. Untuk itu begitu penting Kajian mengenai perilaku dinamis struktur dengan fungsi pemaksa beban dinamik berupa gaya-gaya fluida (air atau angin), dan gaya gempa. Dalam kajian ini, struktur yang ditinjau merupakan balok kontinu pada struktur yang menerima beban angin dan beban gempa. Model struktur merupakan sistem dengan massa terdistribusi (distributed mass). Persamaan diferensial parsial (Partial Differential Equation) balok kontinu dengan beban dinamik diselesaikan dengan analisis mode (modal analysis). Dengan transformasi menjadi dua persamaan diferensial biasa (Ordinary Differential Equations), yang berhubungang dengan fungsi waktu f(t) dan fungsi ruang f(x). Untuk gaya gempa berdasarkan berdasar percepatan gempa El-Centro NS 1940. Persamaan diferensial biasa (ODE) tersebut diselesaikan dengan metode Runge-Kutta. Hasil analisis yang yang diperoleh berdasarkan fungsi waktu (time history) adalah Perpindahan struktur d(x,t), serta gaya-gaya dalam berupa Momen M(x,t) dan Gaya Lintang Q(x,t)

Keywords
Angin dan Gempa, Struktur Menara, Persamaan Diferensial Parsial dan Biasa, Analisis Modal, Runge-Kutta, Perpindahan dan Gaya-gaya Dalam

Topic
Komputasi dan Pemodelan

Link: https://ifory.id/abstract/4Z2bNp7PV3gJ

Corresponding Author
SHANTY OKTAVILIA

Institutions
Faculty of Economics, Universitas Negeri Semarang, Indonesia
L1 Building 1st Floor, Sekaran Campus, Gunungpati, Semarang City Central Java Province, Indonesia
oktavilia[at]mail.unnes.ac.id

Abstract
This study discusses the development of fiscal capacity in Central Java, Indonesia. The purpose of this study is to analyze internal and external factors that increase regional fiscal capacity, and formulate strategies by analyzing internal and external elements to obtain four alternative strategies namely strength - opportunity strategy, strength - threat strategy, weakness - opportunity strategy and Strategy for weaknesses - threats. This study uses secondary data to analyze indicators of regional fiscal capacity and primary data collected through focused discussions, to analyze strategies. The results of the analysis indicate that there are several main strategies to increase regional fiscal in Central Java Province, namely the program of intensification and extensification of regional taxes; improving the quality of human resources with special competencies in the field of taxation; synergy and internal coordination between regional government institutions; improvement of the supervision system for taxpayers; realizing clear and legal regional regulations, simplifying the mechanism for managing investment licenses in Central Java and optimizing regional revenues through modernizing the collection of taxes and levies by utilizing technology. Modernization of increasing regional fiscal capacity will encourage the achievement of equitable regional revenue, increase public participation, administrative efficiency, consistent law enforcement, and improve the level of public confidence in the implementation of good governance.

Keywords
Regional fiscal capacity, taxes, levies, IFAS, EFAS, Strategy

Topic
Economics

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

Corresponding Author
SHANTY OKTAVILIA

Institutions
Faculty of Economics, Universitas Negeri Semarang, Indonesia
L1 Building 1st Floor, Sekaran Campus, Gunungpati, Semarang City Central Java Province, Indonesia
oktavilia[at]mail.unnes.ac.id

Abstract
This study aims to explore economic conditions towards environmental quality, before and after the policy of regional autonomy in Indonesia. This paper analyzed by using regression, the influence of per capita income, gross domestic product (GDP) in the agricultural, industrial and manufacturing sectors on the quality of the environment in Indonesia for the period 1960-2016. The study uses time series data derived from the publication of world bank key indicators and dummy policy variables before and after regional autonomy, namely the value of 0 before 2001 and the value of 1 after 2001. The results of the study state that per capita income, GDP in the industrial sector and GDP of the manufacturing sector negatively affect the quality of the environment, while the GDP of the agricultural sector has a positive effect on the quality of the environment in Indonesia. The regression of the result of policy variable shows the difference in environmental quality in Indonesia, pre and post-regional implementation of autonomy in Indonesia.

Keywords
environmental quality, regional autonomy, GDP, regression

Topic
Sustainable development

Link: https://ifory.id/abstract/j7WBPghcmbED

Corresponding Author
Nur Afifah

Institutions
Universitas Muhammadiyah Sumatera Utara

Abstract
This research is aimed to comparing : (1) Reasoning skills and mathematical understanding of groups between Problem Based learning approaches and expository learning. (2) Reasoning skills and mathematical understanding between learning and early math ability of student mathematical learning result. (3) Seeing the influence of interaction between learning and early math ability of student mathematical learning result.This research is quasi-experiment. The subjects of this study were students of Mathematics Education Study Program who were randomly selected by two classes. Class A was treated with 32 students by Problem Based Learning approaches and Class B was treated with 32 students by Expository Learning. The instrument used was a description test from reasoning and mathematical understanding test, observations of student activities, diversity and answer patterns given by students. Data analysis was performed by t-test and Kruskal-Wallis Non-Parametric Test to see the mean difference and Anova of two Factorial 2 x 3 lines. The main result of this study is that students who study with the Problem Based Learning Approach significantly have higher reasoning and mathematical comprehension skills than students who learn with the Expository Approach. Students with high abilities significantly have higher reasoning and mathematical comprehension skills than students with moderate abilities compared to low ability students, except mathematical reasoning abilities in groups of students with expository learning. There is no interaction between learning factors and students ability factors that influence students reasoning and mathematical understanding abilities.

Keywords
Reasoning Capability,Mathematical Understanding,Problem Based Learning, Expository Approaches

Topic
STEM EDUCATION

Link: https://ifory.id/abstract/hYxb4tcuMVBX

Corresponding Author
YONG CHEE TAN

Institutions
a) Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310 UTM Johor, Malaysia
* arahimyusoff[at]kimia.fs.utm.my
b) Department of Biology, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310 UTM Johor, Malaysia

Abstract
Bacterial infection and dehydration are two dominant issues that limited the effectiveness of the available treatments in re-establishing the structure and functions of damaged skin. Currently, electrospinning, that using electrostatic forces to fabricate polymeric nanofibre, has received blooming attention in the invention of ideal skin scaffold because of its ability to produce multifunctional nanofibres that is not only prevented the problems but also mimicked the extracellular matrix to accelerate the wound healing process. In this project, two synthetic polymers, i.e. Poly(vinyl alcohol) (PVA) and Polycaprolactone (PCL), and different amount of a natural polymer, i.e. Chitosan, were blended and electrospun into nanofibre. The presence of synthetic polymers was crucial as they increased the electrospinnability of chitosan. For comparison purposes, the electrospun PVA-PCL nanofibres were also fabricated. Disc diffusion testing was conducted initially and exhibited that the blended nanofibres inhibited the growth of Staphylococcus aureus and Escherichia coli when the content of chitosan reached 1.5 wt%. The infrared spectroscopy result of both PVA-PCL-Chitosan and PVA-PCL showed typical peaks of PVA and PCL at 3327 and 1719 cm-1 represented O-H and C=O bonds, respectively. FESEM images showed that the smaller fibre and bimodal structure nanofibrous mat were obtained when the chitosan was added. Finally, the hydrophilicity of the PVA-PCL-Cs nanofibrous mat was confirmed by water contact angle which is 0° and hypothetically, it could prevent dehydration and improve cell adhesion to accelerate the wound healing process.

Keywords
Electrospinning; nanofibre; Antibacterial activity; scaffold

Topic
Biomedical Science

Link: https://ifory.id/abstract/nYGC3mbBQjPH

Corresponding Author
Willson Gustiawan

Institutions
Padang State Polytechnic

Abstract
Perception difference between male and female employees often escapes from researchers attention, since such diversity is believed plays an important role and greatly influences leaders and followers behavior, and in turn affects organizational outcomes. This study aims to verify the spiritual leadership model using 246 Indonesia employees and to reveal whether there is any difference perception between male and female employees on spiritual leadership mechanism. There was dissagreement on gender equality in organization, whether employees are equal or different on their perception in organizational behavior. This study is advocated to prove where it should stand for. Quantitative method process is used to verify the spiritual leadership model. The results show that the research variables are reliable and valid. After simplifying research construcs into spiritual leadership, spiritual well-being and organizational citizenship behavior, the whole model reaches its model goodness of fit and all hypotheses are verified. These results confirm the perspective of spiritual leadership and generalization of the theory to Indonesia setting. And, there is no different perception between male and female employees on spiritual leadership mechanism; gender has no significant effect and thus gender equality exists on the model.

Keywords
spiritual leadership theory, Indonesia, gender equality, organizational citizenship behavior

Topic
Islamic Management and Leadership

Link: https://ifory.id/abstract/muRy7QNbHUzY

Corresponding Author
Firman Kurniawansyah

Institutions
Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

Abstract
Indonesia possesses high potential to develop an advanced biorefinery system, thanks to its high richness of natural resources. Bamboo for instance, with more than 200 species, in which 5% of its global distribution is found in Indonesian archipelago, is an invaluable resource to develop many useful materials. Here in this study, bamboo has been used to produce activated carbon for catalyst material. Bamboo raw material was obtained from a city park in Surabaya, and converted to activated carbon through carbonization at 773 K, followed by activation using acidic solution treatments. The activated carbon (AC) was used as catalyst support, impregnated by nickel (Ni) as metal active. The Ni/AC was applied as catalyst for hydrogenation of glucose, conducted at 0.5 MPa and 363 – 403 K. With surface area of 125 m2/g of the carbon supported catalyst applied, glucose could be converted to polyols with overall yield of approximately 3 wt % of the total products.

Keywords
bamboo, activated carbon, catalyst, hydrogenation, glucose

Topic
Chemical Engineering

Link: https://ifory.id/abstract/7q6ratRbHZAC

Corresponding Author
MOH IVAN AZIS

Institutions
Hasanuddin University

Abstract
A boundary element method (BEM) is utilized to find numerical solutions to boundary value problems of quadratically graded media governed by a spatially varying coefficients anisotropic-diffusion convection-reaction equation. The variable coefficients equation is firstly transformed into a constant coefficients equation for which a boundary integral equation can be formulated. A BEM is then derived from the boundary integral equation. Some problems are considered. A FORTRAN script is developed for the computation of the solutions. The numerical solutions verify the validity of the analysis used to derive the boundary element method with accurate and consistent solutions. The computation shows that the BEM procedure elapses very efficient time in producing the solutions. In addition, results obtained for the considered examples show the effect of anisotropy and inhomogeneity of the media on the solutions. An example of a layered material is presented as an illustration of the application.

Keywords
Boundary element method; Diffusion-convection-reaction; Anisotropic inhomogeneous media; Incompressible flow

Topic
Applied Mathematics

Link: https://ifory.id/abstract/Urhtw6aVf2mT

Corresponding Author
MOH IVAN AZIS

Institutions
Hasanuddin University

Abstract
A boundary element method is utilized to find numerical solutions to boundary value problems of trigonometrically graded media governed by a spatially varying coefficients anisotropic-diffusion convection equation. The variable coefficients equation is firstly transformed into a constant coefficients equation for which a boundary integral equation can be formulated. A boundary element method (BEM) is then derived from the boundary integral equation. Some problems are considered. The numerical solutions justify the validity of the analysis used to derive the boundary element method with accurate and consistent solutions. A FORTRAN script is developed for the computation of the solutions. The computation shows that the BEM procedure elapses very efficient time in producing the solutions. In addition, results obtained from the considered examples show the effect of the anisotropy of the media on the solutions. An example of a layered material is presented as an illustration of the application.

Keywords
Boundary element method; Steady anisotropic-diffusion convection equation; Trigonometrically graded media; Incompressible flow

Topic
Applied Mathematics

Link: https://ifory.id/abstract/PZRAu4w3xpah