Indonesia Conference Directory

Corresponding Author
Erfinda Mustika

Institutions
Departement Sharia Economic, Faculty Economic and Business, Airlangga University

Abstract
Economic growth is one indication of increasing community welfare. This study aims to determine how much the contribution of Islamic microfinance institutions, namely Islamic Savings and Credit Cooperative (ISCC) to economic growth (GRDP) in East Java through through Micro, Small and Medium Enterprises (MSMEs). The approach used in this research is descriptive quantitative approach using path analysis techniques with four exogenous variables, namely ISCC Total Capital, ISCC Total Assets, ISCC Net Income, and ISCC Business Volume. GRDP is an endogenous variable, and MSMEs are intervening variables. This study uses saturated samples, namely ISCC data from East Java cooperative performance data obtained from the East Java Cooperative & SME Office, then East Java Constant Price GRDP data obtained from Central Statistics Agency East Java, MSMEs that use Production Index data The Micro and Small Industry (IPIMK) was obtained from the National Statistics Agency.

Keywords
Islamic Micro Finance. Cooperative. Micro, Small and Medium Enterprises. Economic Growth.

Topic
Islamic Micro finance

Link: https://ifory.id/abstract/4HtY6rMuEnB9

Corresponding Author
Marisa Ayu Andarini

Institutions
Sains Ekonomi Islam, Universitas Airlangga

Abstract
Effect of Capital Structure of Sharia Cooperative on Performance and Health of Sharia Microfinance Institution (LKMS) with the Ministry of Cooperatives standard indicator. This study aims to Determine and analyze the comparison of capital structure on the performance and health of an LKMS in Indonesia. The population in this study were four BMT or KSPPS in East Java with location distribution in Madura (BMT NU), Surabaya (BMT Muda), Bojonegoro (KSPPS As Salam) and Gresik (KSPPS MUI). The result of research shows that BMT NU has the highest level in Achieving optimal performance and health, so it can know the capital structure of BMT NU to Achieve the optimal performance and health. In the capital structure division of BMT NU there is a core capital with a share of 35% of total liabilities. Quasi Equity funds is Obtained from collecting third party funds based on the principle of mudaraba by 7% of Total Liabilities. Third party funds deposited in BMT NU are either voluntary or savings deposits amounting to 30% of Total Assets. BMT NU here Also has a large portion of debt to meet the Capital in running its business that is equal to 28% of Total Liabilities.

Keywords
Capital Structure, Sharia Cooperative Performance, Optimal performance and health.

Topic
Islamic Micro finance

Link: https://ifory.id/abstract/e2KZkgWtz4fc

Corresponding Author
Lisa Febriani

Institutions
Airlangga University

Abstract
This study aims to examine whether the Riba Free Community of the Directorate General of Taxes (Komunitas Bebas Riba Direktorat Jenderal Pajak/Kobar DJP) has criteria that are close to the Islamic Savings and Loan and Financing Cooperative (Koperasi Simpan Pinjam dan Pembiayaan Syariah/KSPPS) and whether it can finally be concluded that the Kobar DJP is a miniature of informal Islamic cooperatives at the Directorate General of Taxes (DGT). This research is a qualitative study with a case study method. Data is obtained through library research by juxtaposing the Kobar DJPs Articles of Association and By-laws with government regulations regarding cooperatives and Islamic cooperatives, as well as other electronic literature. In addition, interviews were conducted with members and administrators of the Kobar DJP to find out the business processes in it. The results show that there are many characteristic similarities between Kobar DJP and KSPPS so that it can be concluded that Kobar DJP is a miniature of informal Islamic cooperatives at the DGT.

Keywords
Riba, Cooperatives, Islamic Cooperatives, Kobar DJP, KSPPS

Topic
Islamic Micro finance

Link: https://ifory.id/abstract/nU6TcWDbeHJB

Corresponding Author
Muhammad Sanusi

Institutions
a) Master Candidate of Islamic Economic, Faculty of Economic and Business, Universitas Airlangga, Surabaya, Indonesia
*sanusiekis171[at]gmail.com
b) Departement of Islamic Economics, Faculty of Economic and Business, Universitas Airlangga, Surabaya, Indonesia

Abstract
This paper investigates the impact of bank-specific and macroeconomic variables on the profitability of Islamic rural bank (BPRS) in Indonesia. Using monthly time series data from January 2010 - December 2018. The estimation model used is a vector error correction model to analyze the long-term and short-term relationships between bank-specific and macroeconomic variables on the profitability of Islamic rural bank. The results showed that in long-run CAR and LnTA had a positive and significant relationship, while NPF, BOPO and IPI had a negative and significant relationship to the profitability of Islamic rural banks. But FDR and Inflation variables are not significantly related to the profitability of Islamic rural bank. The results leave implications for policy makers, investors and banking sector managers. Based on evidence that bank profitability is more influenced by internal banks (as specific as banks), this research can help Islamic rural banks to help them understand which factors are important to be analyzed to obtain higher profitability.

Keywords
Bank-specific, Islamic rural bank (BPRS), Macroeconomic, VECM

Topic
Islamic Micro finance

Link: https://ifory.id/abstract/2ZnBrKpz7fCX

Corresponding Author
Feby Zulkarnain

Institutions
Study Program Magister Of Petroleum Engineering
Pembangunan Nasional University Of Veteran Yogyakarta

Abstract
PT. Pertamina Hulu Energi Ogan Komering (PHE OK) Water injection began in 1998, by injecting excess water in abandoned wells in Central ASD and continued in October 2000 and January 2002, and since May 2006 the injection rate was increased above 30,000 BWPD. From the analysis carried out, one of the obstacles in the injection water process at PHE OK is the main pipe capacity of the injection water which is getting smaller and the pressure drop along the pipe is very big. The pressure drop occurs due to the solid / deposition pile on the inside of the pipe, causing obstacles in the process of transferring injection water from the Block Station to the injection wells. From the laboratory analysis, the solid deposits inside the pipe wall is consist of more than 50% organic and hydrocarbon matters (paraffin, oils, and light asphaltene) often called as “Schmoo” deposit. Some pigging activities can not be done due to pipe size, pipe geometry that does not support, pipe construction that is not designed for pigging activities. To overcome the solid deposit problem, PHE OK carried out a field trial of Schmoo Remover Chemical to clean the pipe without using pipe pig. From the field trial result, the removal of the schmoo solid deposit resulted in a significant increase in water injection rates and decrease pipe pressure drop.

Keywords
Schmoo, cleaner, solid deposit, surfactant, water injection

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/RrLJ9CkVjdE2

Corresponding Author
Veronica Sri Lestari

Institutions
Faculty of Animal Husbandry
Hasanuddin University

Abstract
The aim of this study was to determine the level of adoption of a range of standard biosecurity practices in beef cattle farmers in Soppeng Regency, South Sulawesi. Data were collected from 45 beef cattle farmers through observation and in-depth interview by using questionnaire. There was 26 questions which consisted of biosecurity practices: sanitation, isolation and traffic control. Data were analyzed descriptively using mean and percentage. The results showed that a level of partial adoption of biosecurity had been achieved by the beef cattle farmers. The implication is that beef cattle farmers could be motivated to enhance their level of biosecurity practices.

Keywords
Adoption, biosecurity practices; beef cattle farmers

Topic
Socio-economic aspects of animal farming

Link: https://ifory.id/abstract/vJtFEr8g6hzw

Corresponding Author
MOHSIN HASSAN KHAN

Institutions
1. Rashid Ali Khuhro
Lecturer, Center for Rural Development Communication, University of Sindh, Jamshoro, Sindh, Pakistan. 76080. +92229213219. rashid.khuhro[at]usindh.edu.pk
2. Ahmadi Mohiuddin
Graduate Student, Dept. of Media and Communication Studies, University of Sindh, Jamshoro, Sindh, Pakistan. 76080. iamhinaansari[at]gmail.com
3. Mohsin Hassan Khan (Corresponding Author & Presenter)
PhD Scholar Department of Media and Communication studies, University of Malaya, Kuala Lumpur Malaysia. Mohsin18516[at]gmail.com

Abstract
Political Campaign of PML-N through Press: A content analysis of Daily Dawn and Daily Times Rashid Ali Khuhro1, Ahmadi Mohiuddin2, Mohsin Hassan Khan3 The politicians and political parties are one of the leading newsmakers for all sorts of news media. In news media, most of the news stories represent politicians and political parties. During elections, the coverage gets a hype. The politicians want to disseminate their election manifestoes and the public try to get updated through media. This content analysis study examines the coverage of Pakistani Press about mainstream political party Pakistan Muslim League-Nawaz (PML-N) during the election campaign of General Elections-2018. The researcher selected samples through systematic random sampling from 6 months coverage (February-July, 2018) of leading English language newspapers, i.e., Daily Dawn and Daily Times. The findings showed that in comparison to the Daily Times, the Daily Dawn gives more attention to PML-N. The research found that during the analysis of selected content that Daily times used in favorable tone against PMLN while Dawn newspapers remained neutral about the coverage of PMLN. This kind of studies should be conducted on other mainstream political parties of the country to the coverage patterns in mainstream and local newspapers.

Keywords
PML (N), Daily Dawn, Daily Times, General Elections-2018, Pakistan

Topic
Political Party and Election

Link: https://ifory.id/abstract/cd4gu2MtxWAq

Corresponding Author
Nor Ezzatul Hanani Mohamed Rosli

Institutions
Department of Communication, Faculty of Modern Languages and Communication, Universiti Putra Malaysia, Serdang 43400 , Malaysia.

Abstract
Halal industry has gained interest all over the world from different continents. However, the public confidence towards the Halal product has shaken due to the series of high-profile Halal issues and scandals involving the top brands. A single Halal issue can easily balloon into a major crisis on a global scale. In Malaysia, food crises related with Halal issues are becoming an imperative issue among Halal consumer with organizations facing crisis that have been suspected to sell Non-Halal food products. This crisis has the potential to damage organization image and initiate intention of boycotting the organization. Therefore, the appropriate crisis response strategy needs to be adopted in order to manage the outcomes of this crisis. This article theoretically explains the crisis response strategies that most effectively accommodate the level of organization crisis responsibility perceived by the halal food consumer in order to manage image and intention of boycotting the organization. Crisis response strategy is proposed to mediate the relationship between the organization crisis responsibility and the outcomes of the Halal food crisis, and religion characteristic to moderate the relationship between organization crisis responsibility and crisis response strategy on the outcomes of the Halal food crisis.

Keywords
Boycotting Intention, Crisis Responsibility, Crisis Response Strategy, Halal Food Crisis, Organization Image.

Topic
Halal Business Management, Marketing, and Communication

Link: https://ifory.id/abstract/kJtYNqXAGMQ4

Corresponding Author
Nur Afni Halil

Institutions
Universiti Putra Malaysia

Abstract
Social media has been proved to provide tremendous benefits to the organization and enable the interface web-s content establishment, cooperation and conversation by applicants and the societies. Despite the advantageous of adopting social media, this new medium is prone to risks. Although this new medium provide opportunities to stakeholders, the organization might lose control over the dissemination of the information. Complementary to this, social media policy is needed to help the organization to monitor and observe the employees- behaviours pertaining to social media. However, the establishment of regulatory framework such as guidelines and policy are still lacking. In addition to this, research on the antecedents of social media policy adoption are still scarce. Complementary to this, this paper will explains existing studies on the area of organisation culture, knowledge and the characteristics of policy towards social media policy adoption.

Keywords
Antecedents, Social media, social media policy

Topic
Halal Business Management, Marketing, and Communication

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

Corresponding Author
Bety Miliyawati

Institutions
Universitas Subang

Abstract
This article presents the results of research on how to construct a Problem Based Learning (PBL) model with Didactical Engineering (DE) to enhance students mathematical critical thinking (MCT) ability. This study uses quasi-experimental methods of pretest-posttest. The sample involved 158 eighth grade students from two junior high schools at the high and medium levels in Subang City. The sample for the experimental group and control group was randomly selected on the basis of grades. Instruments used were tests of prior mathematical ability (PMA), MCT ability test, and mathematical disposition. Research data of students- pretest, posttest, and normalized gain scores for MCT. The results showed that there is a significant difference in the enhancement of students- MCT between the experimental and control groups. The enhancement of MCT of the experimental group students who were taught with the PBL model with DE is significantly greater in each category of their PMA both in the schools of the high and medium levels compared to the enhancement of the students who were taught with conventional learning model. In addition, there is no interaction effect between the learning model and the students PMA on the mathematical disposition.

Keywords
PBL model, didactical engineering, mathematical critical thinking ability, mathematical disposition

Topic
Mathematics Education

Link: https://ifory.id/abstract/XWb8YKxj62BC

Corresponding Author
Nita Delima

Institutions
(a) Universitas Subang, Jl. RA Kartini Km 3 Subang
(b) Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi Bandung

Abstract
The learning process of mathematics in high school now shows that it has not been able to improve students mathematics self-concepts. This is indicated by the fact that high school mathematics self-concept students are still relatively low. Therefore, there needs to be an effort to improve these variables, considering that these variables are very important in supporting students academic success, especially in mathematics. This study discusses how the implementation of the CMI model in mathematics learning can improve high school mathematics self-concept. This research is a quasi-experimental study. Samples were taken purposively from the population of high school students in Subang, West Java, Indonesia. The instruments used in the study consisted of mathematics self-concept questionnaire and observation sheets. The CMI model is a learning model that accommodates three stages namely develop, solidify and practice. CMI provides many opportunities for students to play an active role in asking questions, explaining the answers to mathematical questions they get, and transferring the knowledge they have with their classmates. The activity will indirectly build the confidence side of students in doing mathematics. The results of the study indicate that the CMI model can improve high school mathematics self-concept.

Keywords
MSC; CMI

Topic
Mathematics Education

Link: https://ifory.id/abstract/dax2j7Ppz9yR

Corresponding Author
Poppy Puspitasari

Institutions
Universitas Negeri Malang

Abstract
Conversion coating in metal material was a method to control the corrosion. It applied in parts of car, aircraft, factory installation, and other appliances. There were three types of conversion coating: phosphate conversion coating, chromate conversion coating, and oxalate conversion coating. There were several aspects to consider in controlling the corrosion fully. This research used phosphate because phosphate conversion coating had a low corrosion rate, affordable production cost, and environmentally friendly. This research aimed to find out the corrosion resistance of ST37 carbon steel using phosphate conversion coating in various immersion durations. Therefore, the result was a breakthrough in using phosphate conversion coating for the industries. This research used the weight loss method to calculate the corrosion rate and macro photos to obtain the corrosion form during the test. This research used ST37 carbon steel with 100 mm x 30 mm x 10 mm as the specimen and phosphate with various coating durations (10, 20, and 30 minutes). Each variation had three specimens, so this research had nine specimens in total. This research calculated the daily corrosion rate for seven days using 5% NaCl as the corrosion solution. The average corrosion rate in specimens with 10 minutes duration was 1.9599 mpy, specimens with 20 minutes immersion was 1.7647 mpy, whereas specimens with 30 minutes duration were 1.3287 mpy. Thus, the longer immersion duration created a smaller corrosion rate. Also, the corrosion formed during the test was pitting and uniform corrosion.

Keywords
Corrosion Resistance, ST37 Carbon Steel, Phosphate Conversion Coating, Immersion

Topic
Smart materials

Link: https://ifory.id/abstract/XRFdxk7mKrMN

Corresponding Author
Sofwan Hadi

Institutions
IAIN Ponorogo

Abstract
Adaptive reasoning is the ability of students to process thoughts received by students. It is used to solve problems that are received and share thoughts to convince acquired knowledge related to mathematics. This ability must be mastered by MI students so that mathematical concepts are mastered not only in the form of calculations but also in their application in daily life. In the era of Industry 4.0 mathematical communication can be improved by using various innovations and digital-based media, one of which is the Macromedia program. Learning Media Design is analyzed by the mix method approach. The subjects in this study were 20 MI students at MI Tarbiyatul Islam Ponorogo. Qualitative methods in this study were conducted to obtain forms of media that can improve students mathematical communication. The results of this study found that there were 4 aspects in improving communication skills, namely exercises in solving problems related to day-to-day life, understanding the material of integer counting operations, student self-confidence, and mathematical literacy writing skills. Quantitative methods of comparison are used to test the results of learning media that are made. After the results of the development there is an increase in students communication skills after using the media.

Keywords
Adaptive Reasoning; Learning Education; Madrasah Ibtidaiyah;

Topic
Mathematics Education

Link: https://ifory.id/abstract/EQ24umJYKB7T

Corresponding Author
Lia Sulistiani

Institutions
Sriwijaya University

Abstract
This study aims to generate the valid and practical PISA-like mathematics problems on uncertainty and data using Indonesian food context. It also aims to see the potential effects of the problems towards the high school students- mathematical ability. This study used a design research methodology with the type of development study which was divided into two stages, namely preliminary stage and formative evaluation stage. This study produced valid and practical PISA-like mathematics problems on uncertainty and data content which have a potential effect on the senior high school students- mathematical literacy ability. The validity was determined based on the expert review, while the practicality was determined based on one-to-one and small group assessment. Based on the students answer, it was found that the problems had potential effects that arouse the ability, communication, reasoning and argument, representation and devising strategies for problem-solving.

Keywords
PISA, Mathematical Literacy, Design Research

Topic
Mathematics Education

Link: https://ifory.id/abstract/jdrJPZKqvz7L

Corresponding Author
Yenita Roza

Institutions
Mathematics Education
Universitas Riau

Abstract
In general, teachers have a good knowledge and familiar with the stages of various learning models. This can be seen in the stages compiled in the learning implementation plan (RPP) they design. However, in the implementation the teacher has not implemented learning model according to the planned stages. This study aims to develop learning videos to be used as a reference for teachers in implementing a problem-based learning model (PBL). Video development is done by using a 4-D model with stages of Define, Design, Develop and Dissemination. The teacher as the model in this video is a mathematics teacher who has experience in teaching and being trained to implement the PBL model. The video shows the stages of learning with the PBL Model which is complemented by the text that appears as a guide at each stage carried out by the teacher. This video was shown to the teacher through the FGD, the teacher was given a questionnaire to provide responses to the videos they were watching. The teacher provides input from aspects of the format, content and language used. The average score from the results of the questionnaire is 3.8 in scale 4. All teachers stated that this video greatly helped them in preparing for the implementation of the problem-based learning model.

Keywords
PBL, Learning Model, Video

Topic
Mathematics Education

Link: https://ifory.id/abstract/FWqHLjmB6v3G

Corresponding Author
Hepsi Nindiasari

Institutions
University of Sultan Ageng Tirtayasa

Abstract
Mathematical reflective thinking skills need to be developed because it supports high-level thinking skills, but as important as it is still lacking in the availability of teaching materials, especially textbooks that develop these abilities. Innovative approaches also support ones success in understanding teaching materials. The innovative approach used is a contextual approach, Problem base Learning, and Metacognitive scaffolding. Character and culture need to be integrated in teaching books in preparation for the era of globalization. This study aims to produce textbooks to develop mathematical reflective thinking skills with innovative approaches and integrated with local character and culture for middle school students. This research uses research and development methods. The conclusions from this study have been produced teaching books to develop the ability to think reflective mathematically with a variety of innovative approaches and character-based and local culture. Based on expert testing and the small scale of the book is suitable for use.

Keywords
Textbooks, Local Culture, mathematical reflective thinking, Character.

Topic
Mathematics Education

Link: https://ifory.id/abstract/aW8hqcd9Ttj6

Corresponding Author
ismel dwi pratiwi

Institutions
Sriwijaya University

Abstract
The purpose of this study was to determine students mathematical literacy seen from students solving the PISA type problem with an Occupational context . This research is a qualitative descriptive research type . The subjects in this study were 26th grade IX students of SMP Negeri 14 Palembang. Students completing the PISA type math problem in the context of coffee processing and the results are then analyzed, supported by observations as long as students solve questions, interview students and mathematics teachers. The results of the study show that students mathematical literacy that appears when solving mathematical problems, namely communication skills , mathematical ability , choosing strategies, reasoning and arguments; and the ability to use language and symbolic, formal and technical operations .

Keywords
Mathematical Literacy, PISA, Research Descriptive Qualitative

Topic
Mathematics Education

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

Corresponding Author
Fittriyanti -

Institutions
a) Syiah Kuala University, Kopelma Darussalam, Banda Aceh 23111, Indonesia
b)Departemen Pendidikan Matematika, Sekolah Pascasarjana, Universitas Pendidikan Indonesia, Jl. Dr. Setia Budi No. 229, Bandung 40154, Indonesia

Abstract
Understanding of concepts is very important in the teaching and learning process or learning process. Fractions are stepping stone which is very important for learning mathematics to a higher level. Fractions are also often used in everyday life. However, there are still many students who are still having difficulty understanding fractions. These difficulties are often caused by a lack of understanding of concepts. The purpose of this study was to analyze the types of misconceptions about fractions experienced by elementary school students. This study used a qualitative approach. The subjects of this study were 11 grade IV elementary school students in 2018/2019 which consisted of 5 men and 6 women. The instruments used were tests and interviews.There were 8 students experienced misconceptions, while 3 students were able to understand the concept. The results showed that 8 students experienced misconceptions, while 3 students were able to understand the concept. The types of misconceptions that occur in students can be in the form of basic errors, namely students understanding of the concept is still low so students do not have knowledge of the procedures used to answer the questions.

Keywords
misconception, concepts of fraction, comparing fraction

Topic
Mathematics Education

Link: https://ifory.id/abstract/yQ6YgHTtEzhr

Corresponding Author
Supratman -

Institutions
Universitas Siliwangi

Abstract
This study aims to reveal divergent and convergent thinking due to conjecturing via analogical reasoning. Revealing divergent and convergent thinking was carried out by the exploration of 67 eighth grade students of Tasikmalaya State Middle School through problem-solving open questions of analogy. With the think-aloud method that is equipped with unstructured interviews, verbal data is obtained relating divergent thinking and convergent thinking. Students with divergent thinking are able to produce new ideas that are often associated with creativity, while people with types of convergent thinking are able to analyze ideas and be associated with their ability to solve problems (problem-solving).

Keywords
conjecturing via anlogical reasoning, divergent thinking, convergent thinking

Topic
Mathematics Education

Link: https://ifory.id/abstract/NQ8BgGFMhPwU

Corresponding Author
Meryansumayeka Meryansumayeka

Institutions
a) Doctoral Student of Mathematics Education Department, Universitas Sriwijaya, Palembang, South Sumatra, Indonesia

b) Mathematics Education Department, Universitas Sriwijaya, Palembang, South Sumatra, Indonesia

*meryansumayeka[at]fkip.unsri.ac.id

Abstract
Mathematics instructional activities, regarding to Indonesia curriculum, are emphasized to High Order Thinking Skills and the use of ICT. This article describes the review of digital mathematics tasks HOTS type which was designed. The review itself is a part of a design research purposing to produce a valid and practical digital mathematics task, and having potential effect to train students high order thinking skills. Data were gathered through expert review document. The result showed that digital mathematics tasks designed were mostly suitable with content, context, mathematical thinking process, and level of High Order Thinking Skills. For all digital mathematics tasks that have been designed, expert reviews suggested to give explanations of HOTS level category of tasks given.

Keywords
Digital Mathematics Tasks; HOTS; Design Research; Expert Review

Topic
Mathematics Education

Link: https://ifory.id/abstract/4PEkJ73HQd9g

Corresponding Author
Ulum Fatmahanik

Institutions
Ponorogo State Islamic Institute

Abstract
Students thinking ability is one of the keys to achieving skills and learning objectives in mathematics. One of the thinking skills that supports these skills is reflective thinking. Reflective thinking is active thinking, continuous, persistent, and carefully considering everything that is believed to be true by reason that supports it and leads to a conclusion. To find out how the reflective thinking skills of students need to be an activity that is solving mathematical problems, where in the process not only involves reflective thinking processes but also requires hard work and toughness (adversity quotient) to overcome difficulties in solving mathematical problems. This research is a qualitative descriptive study that aims to describe how the ability of reflective thinking of camper category students in solving problems of two-dimentional figure. The results showed that the reflective thinking ability of the camper category students was at the reflective level because in the process of thinking it was able to go through the phase of reacting, comparing and contemplating.

Keywords
Reflective Thinking, Problem Solving, Adversity Quotient, Camper

Topic
Mathematics Education

Link: https://ifory.id/abstract/4UkDVnh6QEgj

Corresponding Author
S Setiyani

Institutions
a)Universitas Swadaya Gunung Djati, Jl. Perjuangan No. 01, Cirebon 45131, Indonesia
*setiyani_0401509081[at]yahoo.com
b)Universitas Muhammadiyah Prof. Dr. Hamka, Jl. Limau II, Kramat Pela, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12130, Indonesia

Abstract
The research aims to determine the effect of the problem posing approach to students mathematical abilities. The mathematical abilities of the students studied were the ability to think creatively and ask questions. This research is a quasi-experimental study, with pretest-posttest control group design. Data collection through interview, observation and test. The statistical test used is a simple regression test analysis and t-test. The population of this study is grade VII students from a junior high school in Cirebon in the 2018/2019 academic year. The research sample was two classes as the experimental class and the control class. The instruments used included interview sheets, observation sheets, tests of mathematical creative thinking skills and the ability to ask questions. Based on the results of the study, it is known that there is an effect of the problem posing approach to students mathematical abilities. The problem posing approach gives a greater influence on the ability to think creatively than the ability to ask questions. Mathematical abilities of students from those who applied the problem posing approach were better than the scientific approach. Through the problem posing approach students will increasingly be accustomed to asking questions and thinking creatively in solving problems

Keywords
Problem Posing, Mathematical Ability, Creative Thinking Skill

Topic
Mathematics Education

Link: https://ifory.id/abstract/8hHXJLyC2jMx

Corresponding Author
Bagus Ardi Saputro

Institutions
Universitas PGRI Semarang

Abstract
This research aims to design learning materials with context of onion plantation in Brebes, Central Java, Indonesia. The research began with the observation and interview on how farmer manage and cultivate the plantation area of onions. Finding from this exploration is “gondang”, area of onion plantation made by farmer by which the area larger than that with no gondang. From this finding, designer adopt it to the class. Grid paper is chosen as mathematics tools to model the everyday situation to be mathematics. The preliminary design of the learning materials is learning design on Geometry and Measurement with the applicative domain consider on Princip-s of Realistic Mathematics Education.

Keywords
Ethnomathematics; Learning Design; Realistic Mathematics Education

Topic
Mathematics Education

Link: https://ifory.id/abstract/Mvn462ALDdTU

Corresponding Author
I Made Sutama

Institutions
Universitas Airlangga

Abstract
Knowledge Sharing (KS) is the most important component in Knowledge Management (KM) which is the main driver in creating sustainable innovation. Five-yearly leadership sucession is always followed by massive mutations so that both phenomena are become threats to the sustainability of public service innovations. This qualitative research will explore on: How does the process of innovation program knowledge sharing occur in relation to the sustainability of public service program innovations after the succession of regional heads in the Surakarta City Government? The findings shown that there has been knowledge sharing program innovation occurred after succession and massive mutation, which are influenced by four variables: role of the leader, transformation of innovative mindset, mechanism of social interaction, and external drive. In connection with these findings, further research is recommended to deepen the construct model of the proposition that can be done on local government organizations that totally fail to continue their program innovations post-succesion. Other quantitative research constructs can also be developed by testing the level of influence of the four KS variables innovation programs in both profit and non-profit organizations.

Keywords
Knowledge Management, Knowledge Sharing, Inovation Cycle, Public Service.

Topic
Sustainable Development

Link: https://ifory.id/abstract/NhE4YGrfqkUL

Corresponding Author
Indah Puspita Sari

Institutions
IKIP Siliwangi

Abstract
This study aims to design and develop learning trajectories in triangular and quadrilateral material and examine students mathematical understanding by using the local instruction theory. The research method used is design research with 3 stages, namely preliminary design, teaching experiment, and retrospective analysis. The instruments in this study were tests and non-tests. As for the subjects in this study were seventh-grade junior high school students as many as 40 people. This study describes how the learning trajectory developed can affect mathematical comprehension skills. The final result of this study is an increase in students mathematical understanding skills using the local instruction theory

Keywords
Local Instruction Theory, Design Research

Topic
Mathematics Education

Link: https://ifory.id/abstract/Hd8TEVGBhW9D

Corresponding Author
Mustika Suryaning Putri

Institutions
Faculty of Economic and Business Airlangga University

Abstract
This study was conducted to examine the effect of audit reporting lag on financial statement restatement with firm size, big four public accounting firm, loss, and auditor switching as control variabels. The population in this study are all manufacturing companies listed on the Indonesia Stock Exchange (BEI) in 2014-2016. The sample used is 253 company data. The analysis technique used in this research is logistic regression. Data type is secondary data and processed with data processing software SPSS 20.0. The results found that audit reporting lag had positif effect on financial statement restatement.

Keywords
audit reporting lag, restatement

Topic
Environmental Auditing and Compliance

Link: https://ifory.id/abstract/TyMr7PEGqW49

Corresponding Author
Sonya Fanny Tauran

Institutions
1) Departement of Mathematics Education, Universitas Advent Indonesia, Jl. Kol.Masturi No. 288 Parongpong, Bandung Barat. Indonesia. E-Mail: fanny_tauran[at]yahoo.com
2) Departement of Mathematics Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No.229, Bandung, Indonesia.
3) Departement of Mathematics Education, SPs Universitas Pasundan, Jl. Sumatera No. 41 Bandung , Indonesia.

Abstract
The purpose of this study was to determine the mathematical reasoning achievement and enhancement of students. The population was eighth grade students in West Bandung, and the sample was eighth grade students from two schools (public and private school). Even the two schools were taken as two classes as the experimental group and the control group. The two average difference -test is used in data analysis. The results showed that 1) the mathematical reasoning enhancement of students who acquire ARCS motivation model with contextual approach was better than the students who acquire conventional learning; 2) there were different enhancement of students mathematical reasoning based on the classification of type of school and gender.

Keywords
ARCS, Contextual,Mathematical Reasoning, Type of school, gender

Topic
Mathematics Education

Link: https://ifory.id/abstract/yB36KnpduAb7

Corresponding Author
Siti Nur Umami

Institutions
Airlangga University

Abstract
Foreign Direct Investment (FDI) is an important factor to bust economic development and stimulate economic growth. Rapid economic growth has an impact on environmental degradation. This study aims to determine the direct, indirect, and total effects of FDI on CO2 emissions based on GNI (Gross National Income), categorized as low income countries, lower-middle income countries, upper-middle income countries, high income countries and global panel. This research uses General Method Moment (GMM) with three least square (3SLS) GMM approach. The data used in this research is retrieved from the World Development Indicator World Bank for period 1998-2014. The estimation results conclude there is a positive direct effect of FDI on CO2 emissions for lower-middle and upper-middle income countries, but not significant for low-income, high-income countries, and global panel. FDI has a significant positive indirect effect across all groups of countries and significant positive total effect across groups.

Keywords
Keyword: CO2 emissions, Foreign Direct Investment (FDI), GMM, economic growth

Topic
Air Pollution

Link: https://ifory.id/abstract/BgN8EcqVPm9v

Corresponding Author
Dahlia Fisher

Institutions
Universitas Pendidikan Indonesia
FKIP Unpas

Abstract
This study aims to determine students mathematical reasoning abilities on systems of linear equations and aplications. This research was conducted in the odd semester of the 2018/2019 academic year. The population in this study were all students of class VIII in one of the Junior High School in Bandung with a total sample of 32 students. The research instrument used in the form of test mathematical reasoning abilities. The research method used is qualitative research design. Data were analyzed using data reduction, data presentation, and conclusion. Based on the results of the study it can be concluded that the mathematical reasoning ability of junior high school students in systems of linear equations and aplications is still low.

Keywords
mathematical reasoning ability, systems of linear equations and aplications

Topic
Mathematics Education

Link: https://ifory.id/abstract/3kAUJjKZE7Fn

Corresponding Author
Chichik Ilmi Annisa

Institutions
(a)Urban and Regional Planning Departement, Sepuluh Nopember Institute of Technology Surabaya, Indonesia
*chichikannisa[at]gmail.com

Abstract
Bojonegoro is one of the regency in East Java where the majority of its economic activities are in the agricultural sector. The Agriculture, Forestry and Fisheries Sector is the contributor to the PDRB ADHK in Bojonegoro District for the last five years (2013-2017) in the second highest after mining and processing sector. Development of the agropolitan area in Bojonegoro is not as expected in developing using the agropolitan concept, so research on the direction of food crops in the agropolitan area is needed by involving community participation, called Asset-Based Community Development. This research aims to (1) Analyze the superior commodities of food crops. (2) Identifying existing assets in the community (3) Formulating the agropolitan area development direction to be in accordance with the leading commodities of food crops based on community assets in Bojonegoro. This research using Location Quotient (LQ) analysis and Shift Share Analysis (SSA) approach to find out the superior commodities. Assets identification of agricultural assets owned by Bojonegoro is carried out by descriptive analysis of the results of data obtained through observation and secondary data. Furthermore, to find out the priority of agropolitan area development is carried out by the Analytical Hierarchy Process (ANP) tools. The results is indicate that the main commodities of food crops in Bojonegoro Regency are Rice and Soybean. The priority of agropolitan development based on superior commodities is the provision of water (0.274531), agricultural production equipment (0.188474) and basic infrastructure (0.187322).

Keywords
Agropolitan, Superior Commodities, ANP (Analytical Hierarchy Process)

Topic
Natural Resources Management

Link: https://ifory.id/abstract/XqUztKcLV3ma