Indonesia Conference Directory

Corresponding Author
Magnaz Lestira Oktaroza

Institutions
Accounting Department- Economic and Business Faculty - Bandung Islamic University

Abstract
The purpose of this research is to analyze the information system that is being implemented to identify the problems faced by Baitul Maal Unisba. The problem is the lack of use of documents in documenting the activities carried out, the lack of supervision and control of every process and procedure, and there are no adequate reports to provide accurate information. The method used in this research is descriptive analysis and case studies while the system development method used is system development with the Framework for the Application Development (FAST) method in the form of stages in system development through several phases and activities carried out. The results obtained in this study are the design of a new information system to help Baitul Maal Unisba in solving the problems , namely related to the receipt of zakat funds information systems, zakat fund distribution information systems, financial reporting information systems. The use of a new information system can help carry out operational activities well, then with an integrated system it can solve the problem of recording and calculation that is often done by humans (human error). In addition, Baitul Maals internal control can be more effective and data security more secure.

Keywords
Information Systems for receiving zakat funds, Information Systems for distributing zakat funds, financial reporting information systems

Topic
Other Related Topics

Link: https://ifory.id/abstract/LGunMqTx2PkA

Corresponding Author
Makmur Sirait

Institutions
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Indonesia

Abstract
Nano-hydroxyapatite had been synthesized by the basic ingredients of limestone using an alkaline precipitation method. Hydroxypatite synthesis was done by using H3PO4 0.3M solvent as a source of phosphate and NH4OH 1M as pH controller. The hydroxyapatite powder obtained was characterized by XRD, SEM and FTIR. The XRD test was done to determine the constituent compounds and the crystalline hydroxyapatite that had been made. From the results of the characterization of XRD powder had been formed into Calcium phosphate hydroxide (Ca10H3O27P6) compound or hydroxyapatite with hexagonal crystal form. The nanocrystalline size of the limestone hydroxyapatite powder was 66.05 nm. The SEM test was done to determine the pore size and Ca/p ratio of the limestone hydroxyapatite that had been made. From the SEM morphology test, the pore size obtained was 64.43 nm and the Ca /p ratio was 1.25.

Keywords
Hydroxyapatite; Limestone; XRD; SEM; FTIR

Topic
Nano-materials and applications

Link: https://ifory.id/abstract/Ma4hkZHQ7R6f

Corresponding Author
Zaki Suud

Institutions
1 Nuclear and Biophysics Research Div. ITB
2 Dept of Physics Lampung Univiversity
3 Dept of Physics Jember University

Abstract
UTOP Accident is among important hypothetical accident in Pb-Bi Cooled Fast Reactors. In order to investigate the inherent safety performance of a Pb-Bi Cooled fast reactor a computer code to analyze Unprotected rod run-out Transient Overpower Accident (UTOP accident) is necessary. In this study improvement and parallelization of UTOP accident analyze code for Pb-Bi cooled fast reactors has been performed. The code adopts coupling of space time kinetic and transient thermal hydraulic analysis. Adiabatic approach of space time kinetic is adopted. The mathematical equations are discreetized and implemented on cluster computers using fortran language and MPI approach. The main challenge is the parallelization of the relatively tight coupled part of the program. The space time kinetic is basically relatively tightly coupled part so that difficult to be parallelized. On the other hands multi channels analysis in the thermal hydraulic part is particularly simpler for parallelization process. In general the program can significantly accelerated in the cluster computer with up to 40 core

Keywords
UTOP accident, inherent safety, MPI, space time kinetic

Topic
Nuclear and Radiation Computation

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

Corresponding Author
Zaki Suud

Institutions
1Nuclear and Biophysics Research Divisions, Bandung Institute of Technology
2National Nuclear Energy Agency, Indonesia

Abstract
Global Warming become more important issue in the recent decade. Related to this issue, energy conversion efficiency play important role in achieving economical design of NPP and directly influences thermal pollution to the environment as for the case of gas fueled power plants which becomes very competitive with advanced high temperature gas turbine system. In this study the feasibility to develop high temperature modular gas cooled fast reactors have been investigated. In this presentation the focus is in preliminary assessment of depressurized accident case/ High Temperature Ceramic materials are intensively used for structural materials. In this analysis assessment to estimate maximum temperature in the core during depressurized accident has been performed by employing radiation as the final mechanism to ttransfer the heat from the center of the core to the outer part. The natural circulation of air is assumed to be the final heat removal mechanism from the outer part of the core. Two dimensional R-Z geomentry calculation model has been employed to simulate the heat removal mechanism during depressurized accident. The results shows that by proper adjustment of the material and core design parameter it can be obtained designs which can survive depressurized accident inherently.

Keywords
GCFR, high temperature, energy conversion efficiency, depressurized accident, radiation

Topic
Nuclear and Radiation Computation

Link: https://ifory.id/abstract/WdJCLHnP3zNv

Corresponding Author
Tarsisius Murwadji

Institutions
Faculty of Law, Padjadjaran University, Bandung

Abstract
The regulation and practice of Corporate Social Responsibility (CSR) in Indonesia is increasingly troubling for foreign companies willing to invest. This problem is formed due to the bias between the paradigm that was first published in the United States and European countries, with the already set paradigm in Indonesia. In the beginning of its history, CSR was a development of a companys business ethics initially focused on product reliability, which became a concern for all company stakeholders. Through this CSR, the companys development will be guaranteed because it is supported by all internal and external stakeholders. CSR is one of the 7 pillars of future corporate management. The CSR paradigm bias in Indonesia is triggered by the interpretation bias of the term -social- in “Corporate Social Responsibility”. In the United States, it is broadly defined as a “stake holder”, whereas in Indonesia, it is interpreted in a narrow sense, namely "sosial" or "people who needs to be helped". As a result, CSR is defined as a companys responsibility to assist the community. Capital assistance for micro and small businesses, scholarships, bridges and road development in villages are examples of the CSR implementation that are based on charity and are not related to the sustainability of a companys business. CSR in Indonesia is considered as an opportunity for the government to create a channel to attract finance from companies for the benefit of the wider community. The inaccuracy in interpreting the terminology is not merely an inaccuracy of the paradigm, but can also lead to a regulation rendering it-s requirements from voluntary to obligatory accompanied by sanctions. The hypothesis proposed in this article is: "CSR paradigms and regulations in Indonesia do not guarantee the sustainability of corporate business but rather tend to be a country risk". In the context of globalization in all sectors, particularly international investment in Indonesia, it is necessary to conduct an audit, which the author named Legal Quality Audit, to perform tests both normatively and practically. The Legal Quality Audit applied here is the original legal theory of the author which has been used as a legal theory in several dissertations in Padjadjaran University. The purpose of this Legal Quality Audit is to test the hypothesis raised above. The results of the study proves that the proposed hypothesis is proven to be correct, meaning that the regulation of CSR in Indonesia is indeed burdensome to international (foreign) investors and creates country risk. CSR in Indonesia focuses on community development and not on sustainable business. In this article, we discuss in detail the new paradigm of CSR in Indonesia as one of the pillars of future business management, which ensures the sustainability of the business of foreign investors in Indonesia and satisfies all of its stakeholders.

Keywords
corporate social responsibility, legal quality audit, country risk, sustainable business, international investment

Topic
Trade and Business

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

Corresponding Author
Detania Sukarja

Institutions
Universitas Sumatera Utara

Abstract
All business entities receiving capital from the public budget must apply Good Corporate Governance ("GCG") principles which include transparency, accountability, responsibility, independency and fairness. However, unlike the regulations relating to State-Owned Enterprises (“BUMN”) and Regionally-Owned Enterprises (“BUMD”) which explicitly regulate the obligation of the companies to implement GCG principles, the regulation on Village-Owned Enterprises (“BUM Desa”) does not specify and regulate this explicitly. BUM Desa and similar business entities need to be managed in accordance with these principles in order to reach their maximum potential and be publicly accountable. Sound and professional management of BUM Desa is particularly important because it relates to the Indonesian Government-s Village Fund program. The program aims to improve the welfare of villages, overcome development gaps between villages and strengthen rural communities as the subject of development. This paper aims to showcase the result of a research conducted covering 10 BUM Desas spread across 6 regencies in North Sumatera. The research seeks to assess the comprehension of BUM Desa managers relating the concept of GCG and document to what extent they apply the principles in the management of their business entities in conjunction with the regulations. The results showed that managers understood the urgency of managing business entities correctly in accordance with statutory regulations, but almost all of them did not understand GCG as a concept. On this basis the research emphasizes the importance of strengthening the regulatory frameworks for BUM Desa to explicitly reference application of GCG principles.

Keywords
BUM Desa; Village-Owned Enterprises; Good Corporate Governance

Topic
Trade and Business

Link: https://ifory.id/abstract/yfCcpAUKb3e4

Corresponding Author
Amriani Darman

Institutions
(a), (b) doctoral program, Faculty of medicine, UNHAS

Abstract
The aim of the research is to find out the influence of husband assistance of IMD on the length of full breast feeding The research was an observational analytic study with cohort prospective design conducted in two health center of Makassar City. The sample consistend of 354 respondents. The data were analyzed by using survival analysis and bivariate test with Kaplan Meier. The result of the research reveal that husband assistance of IMD does not influence the length of full breast feeding with the value of p > 0.1. besides, the result of further analysis indicates a significant different variable to influence the length of full breast feeding.

Keywords
Husband Assistance, IMD, full breast feeding

Topic
Maternal, neonatal and child health

Link: https://ifory.id/abstract/V6xJYXEKGzy8

Corresponding Author
ITA RIFIANI PERMATASARI

Institutions
Jurusan Administrasi Niaga Politeknik Negeri Malang

Abstract
This community service aims to improve the ability to manage the souvenir business made from ceramics and merchandise, which is located in the Ceramic Village of Malang City. They have fundamental problems like product quality and product design that are still underdeveloped, as well as obstacles in marketing field. The supplies will be given such as the concept of improving product quality, product design and on-line marketing. At the end of the program, they will be evaluated with a business simulation, as well as mentoring and monitoring to run the business for 1 month. The expectation of this activity by providing theoretical supplies, product design training and on-line marketing to ceramics and merchandise businesses in Malang Dinoyo Ceramic Village is so that their businesses will grow and be competitive.

Keywords
Product Quality, Product Design and Online Marketing.

Topic
Kewirausahaan Dan Inovasi Bisnis

Link: https://ifory.id/abstract/hN4gtRFyqjL6

Corresponding Author
Muhamad Muwidha

Institutions
Politeknik Negeri Malang (POLINEMA)

Abstract
Penelitin ini bertujuan untuk melakukan pengujian apakah ada hubungan antar kelompok variabel struktur modal dengan kelompok variabel kebijakan aktifitas investasi yang dilakukan perusahaan. Obyek penelitian adalah perusahaan yang tergabung dalam Jakarta Islamic Index (JII). Populasi sebanyak 30 peruhaan, berdasarkan teknik purposive sampling sampelnya menjadi sejumlah 24 perusahaan. Hasil penelitian menjelaskan bahwa kebijakan leverage perusahaan dalam koridor aman. Sementara kebijakan investasi masih dinilai baik. Nilai Account Receivable Ratio (ART) sebesar 10,75 kali, nilai Inventory Turn Over (ITO) sebesar 7,25 kali sedangkan Fixed Assets Turn Over (FATO) sebesar 3,76 kali dan Total Aset Turn Over sebesar 1,10 kali dimana perputarannya rendah. Hasil analisis kanonikal menghasilkan tiga persamaan. Untuk persamaan pertama memiliki koefisien korelasi paling besar yakni 65,44% sehingga persamaan dapat dianalisis lebih lanjut. Setelah dilakukann analisis interpretasi kanonikal variatnya melalui kanonik bobot, beban dan beban silang maka ditemukan bahwa variabel dependen Y (Long Term Debt) mempunyai hubungan yang paling terhadap kanonik variat independen. Adapun pada variabel independen terdapat dua variabel yang berkorelasi kuat terhadap variabel dependen. Variabel tersebut adalah perputaran persediaan (ITO) dan perputaran aktiva tetap (FATO). Berdasarkan hasil penelitian ada temuan bahwa kebijakan leverage yang memunyai hubungan terhadap aktivitas investasi aadalah Hutang Jangka Panjang (Long Term Debt). Temuan ini menjelaskan bahwa perusahaan pada kelompok JII bahwa kebijakan penggunaan hutang dalam membentuk struktur modal perusahaan menjadi lebih penting. Temuan ini mendukung teori Modiglani Miller dan Teori Agensi. Perputaran aktiva tetap berkorelasi negatip terhadap hutang jangka panjang, Maknanya semakin besar nilai aktiva tetap justru hutang jangka oanjang semakin dikurangi.

Keywords
Kebijakan Leverage, Aktifitas Investasi, Korelasi Kanonikal, JII

Topic
Manajemen Keuangan

Link: https://ifory.id/abstract/PHqK46EkAxpZ

Corresponding Author
Nonik Ningrum

Institutions
Universitas Sarjanawiyata Tamansiswa Yogyakarta

Abstract
Penelitian ini bertujuan untuk menguji pengaruh service experience pada loyalty dengan dimediasi oleh satisfaction. Hasil penelitian ini menunjukkan bahwa service experience secara positif dan signifikan berpengaruh pada loyalty dan satisfaction, namun satisfaction tidak berpengaruh pada loyalty sehingga mediasi tidak terjadi. Penelitian ini merupakan penelitian kuantitatif dengan teknik pengambilan sampel purposive random sampling. Total responden dalam penelitian ini sebanyak 118 responden. Data dianalisis dengan menggunakan structural equation modelling. Temuan dalam penelitian ini adalah bahwa konsumen industri perhotelan memiliki kecenderungan untuk berpindah atau tidak setia meskipun mereka merasa puas dengan layanan yang diberikan oleh Hotel.

Keywords
service experience, satisfaction, dan loyalty

Topic
Manajemen Pemasaran

Link: https://ifory.id/abstract/Zfhk8HCupUe6

Corresponding Author
Ari Kuntardina

Institutions
STIE Cendekia Bojonegoro

Abstract
Perawat memiliki peran besar dalam keberhasilan perawatan pasien dan keberlangsungan sebuah rumah sakit. Kurangnya jumlah perawat memengaruhi pelayanan kesehatan masyarakat. Kecukupan dalam jumlah dan kualitas perawat harus diperhatikan. Tujuan dari penelitian ini adalah untuk menguji dan menganalisis pengaruh Job Satisfaction dan Perceived Ease of Movement terhadap Turnover Intentions. Penelitian ini dilakukan pada sebuah rumah sakit kelas D. Populasinya merupakan perawat yang berjumlah 55 orang. Teknik sampling yang digunakan adalah sampling jenuh. pengumpulan data melalui kuesioner dan analisis data dalam pengujian hipotesis menggunakan Teknik korelasi Pearson Product Moment. Hasil analisis menunjukkan bahwa Perceived Ease of Movement dan Job Satisfaction memengaruhi Turnover Intentions perawat. Hasil penelitian ini diharapkan bisa memberikan masukan bagi manajemen rumah sakit dalam meningkatkan Job Satisfaction perawat sebagai upaya menurunkan Turnover intentions perawat.

Keywords
Perceived ease of movement, Job satisfaction, Turnover intentions

Topic
Manajemen Sumber Daya Manusia

Link: https://ifory.id/abstract/j8JALCxDVdG3

Corresponding Author
Ramadania Ramadania

Institutions
Fakultas Ekonomi dan Bisnis Universitas Tanjungpura

Abstract
Tujuan penelitian ini adalah untuk menyelidiki faktor-faktor yang mempengaruhi minat pembelian kembali pelanggan dari pelayanan transportasi online yaitu Gojek pada kota Pontianak. Lebih khusus lagi, penelitian ini memeriksa hubungan antara variabel kualitas layanan elektronik, kesadaran merek, kepercayaan, dan kepuasan pelanggan terhadap minat pembelian kembali pada layanan Go-Car, Go-Food, dan Go-Ride. Data dikumpulkan melalui survei dengan 170 responden. Pemodelan persamaan struktural digunakan untuk menguji hipotesis yang diajukan. Model penelitian diuji menggunakan data survei yang dianalisis dengan pemodelan persamaan struktural kuadrat terkecil parsial. Hasil temuan, untuk layanan Go-Car dan Go-Food menunjukkan bahwa adanya pengaruh yang signifikan antara kualitas layanan elektronik dan kesadaran merek terhadap kepercayaan dan kepuasan pelanggan, kemudian adanya pengaruh yang signifikan antara kepercayaan terhadap minat pembelian kembali. Sedangkan pada layanan Go-Ride ditemukan adanya hubungan tidak signifikan antara kesadaran merek terhadap kepercayaan, namun berpengaruh signifikan hubungan antara kepercayaan terhadap minat pembelian kembali. Keterbatasan penelitian/implikasi ini terletak pada penggunaan data yang terlalu kecil untuk masing-masing layanan yang menyebabkan keterbatasan hasil dan ketebatasan keterwakilan dari seluruh pengguna dikota lain, tidak adanya hubungan variabel moderasi antara kesadaran merek terhadap kepercayaan dan tidak membandingkan dengan perusahaan pesaing.

Keywords
E-Service Quality, kesadaran merek, kepercayaan, kepuasan pelanggan, minat pembelian kembali, transportasi online, Gojek

Topic
Manajemen Pemasaran

Link: https://ifory.id/abstract/VG4ajEmuZYJQ

Corresponding Author
Hanifah M. Kom

Institutions
Pendidikan Matematika FKIP UNIB

Abstract
ABSTRACT The APOS Model is a Mathematical Learning Model Based on Theory: Action, Process, Object, and Schema (APOS). The APOS Model is a refinement of the Calculus Learning Model Based on APOS Theory. The APOS Model has syntax with phases: Orientation, Practicum, Small Group Discussion, Class Discussion, Exercise or Evaluation. Development of SWSbased on APOS Model assisted on Geogebra in the subject of Riemann Sum developed using Plomp (2013) design which consists of three stages: 1) preliminary research, 2) prototyping phase, and 3) assessment phase. The purpose of this research was to find out how practicality of SWS was being developed, and how the criteria of practicing SWS based on the APOS Model assisted by Geogebra in the Riemann Sum discussion topic. The instrument used to collect data was the SWS practicality instrument in the form of a Likert scale. Research subjects were: one-to-one test conducted by a lecturer, a teacher, 3 senior students. Small group test by 3 groups of senior students with 3 students in each group. Large group test by 35 students in class B on the 3rd semester of Mathematics Study Program Faculty of Teacher Training and Education University of Bengkulu. After processing the data, the average score of practicality test of SWS was: one to one trial = 82,5%; according to the small group test = 77.63%; according to the large group test = 67,5%. The average value of practicality of SWS by users was 75,862% and belongs to the practical category.

Keywords
APOS Model, APOS Model Syntax, Practicality of SWS

Topic
Mathematics Education

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

Corresponding Author
SATRIANI S.T

Institutions
Universitas Hasanuddin
Jl. Malino, Borongloe, Bontomarannu, Kabupaten Gowa, Sulawesi Selatan 92119, Indonesia

Abstract
Abstract— The Tallo River is a drainage channel estuary in this area, in addition to being a resource provider, the Tallo River also has the potential to pose a threat of flooding because it is strongly influenced by tides. Regulatory Ponds are flood control structures built upstream from areas that will be protected from flood hazards. In this thesis the researcher analyzes the capacity of the Nipa-Nipa regulatory pool with the Ripple method. Flood tracing results obtained a maximum of 3,395,116.79 m3, while topographic conditions obtained a maximum of 3,583,270.96 m3 then optimization analysis based on the Ripple Method obtained with a volume that was accommodated during 1980-1984 was 2,508,330,462 m3, during 1985- 1989 was 2,158,594,429 m3, during 1990-1994 it was 1,721,928,984 m3, during 1995-1999 it was 2,072,035,680 m3, the volume that was accommodated during 2000-2004 was 2,526,941,033 m3, the volume that was accommodated during 2005-2009 was 1,996. 205,351 m3 and the volume that was accommodated during 2010-2014 was 1,913,798,405 m3. This shows that the capacity of the Regulated Pond storage can serve to reduce flooding in the Tallo River

Keywords
Flood, Storage Capacity, Ripple Method

Topic
Climate Change

Link: https://ifory.id/abstract/Tu72ZgKcdzUv

Corresponding Author
Meutia Farida

Institutions
a) Geological Engineering Department, Engineering Faculty Hasanuddin University, Gowa 92171, Indonesia
b) Indonesia Agency for Meteorology Climatology and Geophysics, Jakarta Pusat 10720, Indonesia
*) meutia.nugraha[at]gmail.com

Abstract
Abstract. The Walanae Formation is the youngest sedimentary rock that formed a mountainous area along the Walanae river valley. It is very interesting and challenging to prove that Walanae depression developed from the Late Miocene to the Late Pliocene. This area gradually became a marine environment and how the climatic conditions at that time were particularly on the Salo Mario section. Soppeng Regency. Measuring section on Salo Mario obtained 32 layers, consists of interbedded claystone, sandstone and conglomerate on the upper part of the outcrop. Samples from the layers are then made into smear slides and dried using a UV lamp and the preparations were analyzed under a microscope at a magnification of 1000x. The result of laboratory observations, nannofossil is only found in 11 layers consisting of coccolith and Discoaster. The nannofossils were determined namely Discoaster asymmetricus Gartner, Discoaster berggrenii Bukry, Discoaster bollii Martini and Bramlette, Discoaster brouweri Tan Sin Hok, Discoaster calcaris Gartner, Discoaster deflandrei Bramlette and Riedel, Discoaster neohamatus Bukry and Bramlette, Discoaster pentaradiatus Tan Sin Hok, Discoaster pseudovariabilis Martini and Worsley, Discoaster surculus Martini and Bramlette, Discoaster tamalis Kamptner, Discoaster triradiatus Tan Sin Hok, and Discoaster variabilis Martini and Bramlette. The occurence of Discoster indicates the warming of the lower photic zone caused by the weakening of upwelling.

Keywords
Discoaster, Lower photic zone, Measuring section, Nannofossil, Walanae depression.

Topic
Climate Change

Link: https://ifory.id/abstract/th7ZBwpRFYrE

Corresponding Author
Lucky Caroles

Institutions
University of Hasanuddin, Makassar, Indonesia

Abstract
The Light Weight Deflectometer (LWD) is a portable device that measures the onsite dynamic or resilient modulus (Evd) of subgrade soils and pavements. However, this method is time-consuming. A light-weight deflectometer (LWD) developed for evaluation of surface stiffness may be employed to estimate the degree of compaction. The application of LWD technology to compacted asphalt layers have been combined with nondestructive testing (NDT) devices to better characterize the stiffness parameters. The areas identified as less-compacted are common candidates for performing the NDT spot tests. In this study, the following tests were performed on a asphalt layer by field and laboratory LWD test. Correlation of stiffnes parameters of asphalt layer (deflection (D0), surface modulus (E) and stress (τ)) field and laboratory LWD was investigated. It was found that there are relevant correlations between the stiffnes parameters of field and laboratory LWD. When these correlations are known, laboratory LWD test can be an alternative for indirectly evaluating of stiffnes parametrs for asphalt layers. The proposed correlation was validated with independent data from other studies reported in the literature.

Keywords
stiffnes parameters, LWD, NDT

Topic
Urban & Transportation Sustainability

Link: https://ifory.id/abstract/mRbdHUVw7NfM

Corresponding Author
Gatokhasan Syamsuddin

Institutions
University of Hasanuddin

Abstract
Water that flows in channels in free conditions is water that flows in open channels and comes into contact with free air. All flows that enter the open channel system are designed to flow by gravity. The Open channels can be divided into two types, namely artificial and natural channels. Open channels encountered in technical, semi-technical, and non-prigmatic irrigation. Research is carried out in line Secondary Regional Irrigation Alitta village Bentenge Subdistrict Paleteang district Pinrang the channel reviewed is a secondary channel which has a different type of channel, namely the masonry channel, concrete lining channel, precast concrete channel, and soil channel which is influenced by 3 door openings, namely 20 cm openings, 30 cm openings and 40 cm openings.

Keywords
Door, Oppening, Flow velocity, Type channel

Topic
Waste to Energy Potential Resources

Link: https://ifory.id/abstract/TpwKgQ9nyfqd

Corresponding Author
Avinindita Nura Lestari

Institutions
a) Faculty of Medicine, Bandung Islamic University, Bandung
*avininditanl[at]gmail.com
b) Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Padjadjaran, Bandung
c) Department of Physiology, Faculty of Medicine, Bandung Islamic University, Bandung

Abstract
Obesity paradox existence-s been proposed this past decade, suggesting obese individuals may have survival benefit when there-s acute cardiovascular decompensation. Adiponectin-s known to have cardioprotective role against inflammation. We look at mitral valve stenosis (MS), feature of rheumatic heart disease (RHD), to determine relationship between body mass index (BMI) and degree of MS in RHD patients. Observational analytic study is done with cross-sectional method and consecutive sampling. 225 medical records enrolled from RHD patients at Noninvasive Diagnostic Division, Heart Service Installation, Dr. Hasan Sadikin General Hospital Bandung. Anthropometric measurement and echocardiography results taken and analyzed using Kruskal-Wallace followed by Mann-Whitney and Chi-square. Underweight, normal, overweight, and obese percentage are 16%, 52%, 15%, and 17% respectively. Severe MS distributed most in normal BMI group. In obese patients, MS distribution is moderate (6.2%), severe (5.8%), and mild (5.3%). Analysis shows the relationship between BMI and degree of MS (p<0.05). Median of mitral valve area (MVA) in obese group shows the greatest (1.2 vs 0.8-0.9) and significant (p<0.05). There-s significant relationship between BMI and degree of MS in RHD patients and greater median of MVA in obese group. Statistically, this may support the evidence of obesity paradox in RHD patients with MS.

Keywords
obesity paradox; mitral stenosis; rheumatic heart disease; body mass index; mitral valve area

Topic
Infectious and Non Infectious Diseases

Link: https://ifory.id/abstract/p9wRFPmTaVek

Corresponding Author
Wahidah Sanusi

Institutions
a) Department of Mathematics, Universitas Negeri Makassar, Parangtambung, Makassar, 90224, Indonesia
*wahidah.sanusi[at]unm.ac.id
b) Department of Statistics, Universitas Negeri Makassar, Parangtambung, Makassar, 90224, Indonesia

Abstract
A multivariate analysis on rainfall variables is needed to understand relationships among characteristics of rainfall variables. The monthly rainfall amount records from three stations during the period of 1985-2014 in Makassar are used. The Standardized Precipitation Index is employed to classify data into wet category. The aim of this study is to investigate the most appropriate joint probability distribution function of wet duration and wet severity based on bivariate Archimedean copulas. The copulas are Gumbel-Hourgaard, Frank, Joe, and Clayton. Parameter of copulas are estimated by Kendall-s tau correlation coefficient. The study result show that the Frank copula was identified as the best copula in joint modelling between wet duration and wet severity at MMP and BRP stations, meanwhile the Gumbel-Hougaard copula at BBMKG station. This results could be useful information for determining return periods of wet condition characteristics.

Keywords
Bivariate distributions; copula; wet duration; wet severity

Topic
Mathematics

Link: https://ifory.id/abstract/PtvBgbUGx8nm

Corresponding Author
Hartati Hartati

Institutions
Biology of Department, Faculty of Mathematics and Natural Sciences, Universitas Negeri Makassar

Abstract
This research that aims for antibacterial activity Lannea coromandelica extract. The klika was extracted by wet and dry method using ethyl acetate and ethanol 70% that acquired 4 types of extract they are ethanol extract 70% of wet klika Kayu Jawa (KJBE70%), extract ethanol 70% of dry klika Kayu Jawa (KJKE70%), ethyl acetate extract of dry klika Kayu Jawa (KJKEA), and extract of wet klika Kayu Jawa (KJBEA). Extracted by maceration, dan then antibacterial acivity. The results from this research shown that all extracts have antibacterial activity to inhibited bacteria test growth (Escherichia coli, Staphylococcus aureus, Pseudomonas sp., and Vibrio parahaemolyticus.

Keywords
Lannea coromandelica, antibacterial activity

Topic
Biology

Link: https://ifory.id/abstract/ApUNhD7gudqt

Corresponding Author
St. Fatmah Hiola

Institutions
a) Biology Department, Universitas Negeri Makassar
b) Environmental Education, Universitas Negeri Makassar

Abstract
Natural orchids or wild orchids are often used as the main ingredient for obtaining commercial types of hybrids, but the existence of these wild orchid species is often threatened with extinction due to narrow land, because many are used for settlements, plantations or due to natural damage. In addition, the taking of orchids in nature without considering its sustainability. The purpose of this study was to explore information about community exceptions around the study area for the preservation of natural orchids. The subjects in this study were the community around Mallawa Resort, Bantimurung Bulusaraung National Park. This type of research is descriptive using survey methods by conducting interviews and distributing questionnaires to explore information about the needs of the community related to the conservation of natural orchids. The results revealed that basically the community around the Mallawa Resort area was familiar with natural orchid plants (65.93%) but knowledge of natural orchids and their preservation was still lacking (38.27). Generally, people have a caring attitude towards the existence of natural orchids (68.52%). This can be seen from the orchids that are owned by the community generally comes from nature (50.62%) and have been able to develop them (46.91%). However, only a few people feel the benefits of developing natural orchids (22.84%), and involvement in the conservation of natural orchids carried out by the government and other parties (11-38%). The conclusion of this study illustrates the need for an activity to preserve natural orchids through the development of a training model for the community around the study area.

Keywords
Conservation, Mallawa Resort, Natural orchids, Need analysis of community

Topic
Biology

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

Corresponding Author
Hasri Hasri

Institutions
1) Chemistry, Faculty of mathematic and natural sciense , Universitas Negeri Makassar
2) Biology, Faculty of mathematic and natural sciense , Universitas Negeri Makassar
3).Alumny chemistry, Faculty of mathematic and natural sciense , Universitas Negeri Makassar

Abstract
Abstract Synthesize ZnO-Activated Carbon (ZnO-AC) use the time, concentration, pH degradation Acid Orange 7 dyes. The stages preparation of synthesize included sample preparation, making shell activated carbon candlenut, ZnO-KA characterization and degradation study.. SEM-EDX analysis results showed an uneven morphology with a percentage of ZnO mass of 58.46%. ZnO-KA degrade Acid Orange 7 for 8 hours with a concentration of 50 ppm and at pH alkali obtained percentage degrade of 96.23%. Key words: Degradation, Acid Orange 7, ZnO-KA

Keywords
fotodegradasi, Acid Orange 7, ZnO-Karbon Aktif (ZnO-KA)

Topic
Chemistry

Link: https://ifory.id/abstract/EmVfubnv4XZ6

Corresponding Author
Muhammad Junda

Institutions
Dept of Biological Science, Faculty of Mathematics and Natural Sciences, Makassar State University

Abstract
The objective of this study is to investigate the production of white leg shrimp, L vannamei by application of biofloc technology on intensive shrimp grow out ponds. This study was carried out on five of shrimp grow out ponds with different pond size and zero water exchange management strategy. These shrimps were reared with intensive systems such as shrimp seed post larvae (PL) 10, commercial feed, aeration with paddle wheels, mineral, vitamin and molasses as well as floc-forming microbes and natural herb fermentation. Shrimp grow out ponds with condition as follows : water depth, 90 – 120 cm, feeding rate four times a day, aeration 24 hours in cultured period. Water quality indicators were measured ever day such as : survival rate, average daily gain, mean body weight, and feed conversion ratio. The results of this study showed that shrimp yield were 1,250 – 6,300 kg, growth rate such as : ADG, 0,32 – 0,40; survival rate 85 – 95 %; MBW 20, 23 – 27.30 and FCR = 1.10 – 1.20. Water quality parameters : pH = 7,2 – 9.5; salinity : 15 – 25 ppt ; temperature : 28 – 31 0 C; water depth : 90 – 120; tranparancy : 25 – 40; dissolved oxygen : 3.0 – 5.2; . In conclution, Application of biofloc technology with zero water exchange increased shrimp production significantly and water quality parameters were in range suitable for shrimp cultured growth.

Keywords
application biofloc technology, intensive production, Litopenaeus vannamei, zero water exchange.

Topic
Biology

Link: https://ifory.id/abstract/F3482b6j9qcU

Corresponding Author
Army Auliah

Institutions
Universitas Negeri Makassar

Abstract
The importance of improving the quality of learning in schools is more and more recognized. Now day Green Chemistry is recommended in teaching chemistry as an effort to foster students caring attitudes towards the environment. In other hand improving teaching quality through lesson study has been done a lot. This paper contributes to the solution of problem of improving the quality of chemistry teaching that foster students caring attitudes towards the environment. The integration of the principles of green chemistry through the application of the principles of Lesson Study learning community that allows the principles of green chemistry be understood and applied by students in their daily lives, results a Teaching model called Green Chemistry Learning Comprehensive by Collaborative and Collegialities (GCLC2C) that has been developed and validated. Key words: Chemistry Teaching Model, Lesson Study, Green Chemistry

Keywords
Chemistry Teaching Model, Lesson Study, Green Chemistry

Topic
Chemistry Education

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

Corresponding Author
nadi suprapto

Institutions
Department of Physics, Universitas Negeri Surabaya
*nadisuprapto[at]unesa.ac.id

Abstract
Through a research project of exploring physics concept in Techno Park, this study was manifested. It explored the existence of the application of the physics concept as part of exhibitions in museums, technopark, and science centers. The author specified the discussion into “Gravitram”. It is a complex system in which an electric motor lifts metal balls up to the top of the gravitram system, so each ball experience the law of conservation of energy. Rationally, the author adopted the qualitative paradigm in the research methodology. Documentation study through photo-elicitation and video analysis; and content analysis of electronic resources were used in the data collection. For a clear explanation, the findings and discussion are started from the history of the gravitram system, gravitram in the world, and the physics analysis of the system itself. The discussion is also exploring further the role of this system as a part of physics leisure, outdoor learning, or both of them.

Keywords
physics; gravitram; outdoor learning

Topic
Physics Education

Link: https://ifory.id/abstract/a4bWh9ft7nBk

Corresponding Author
Agus Fany Chandra Wijaya

Institutions
Universitas Pendidikan Indonesia

Abstract
Indonesia-s Education, must admit, student-s learning achievement is one of the crucial aspect need to be improve and develope through the learning process now a day, the fact that meaningful learning process is the key of the situation (Arianto & Rubini, 2016; Bilgin & Karaduman, 2005; Rustaman, 2003). Furthermore, Education for Sustainable Development (ESD) can be infuse into the curriculum through three different strategies, which are, ESD on Curriculum or ESD provide context for the teaching and learning process, ESD in Curriculum or ESD become a part of the subject content and context, and Curriculum of ESD or ESD as a subject it selves (Wijaya, 2018). Therefore, the research aims are to describe and analize the implementation of ESD on Curriculum in Junior and Senior High School effects toward the pupil-s cognitive achievement and sustainability awareness, and also the prospective teacher student-s perception. Utilize the mixed method research, this study probe 156 junior and senior high school pupil-s from five different school and five prospective teacher student-s achievement and perception through the science teaching and learning activities. There are three different result point of view, the pupil-s cognitive achievement, the pupil-s sustainability awareness, and the student-s perception on preparing and implementaing infusing ESD on the curriculum. The first result revealed that overall student-s cognitive achivement profile improved significantly after the implementation of ESD on science curriculum in junior and senior high school level. Secondly, student-s sustainability awareness profile on the implementation of ESD on science curriculum with the dominant of hands-on teaching and learning activities achived the highest level of awareness for all of the aspects while the less dominant of hands-on teaching and learning activities only achived the highest level of awareness on emotional and behavioral aspects. Thirdly, the perception of undergraduate student-s toward their ESD on science curriculum implementation in junior and senior high school level, in general, student-s perception are on the Organization stage and the Interpretation stage which mean developed well through the implementation process.

Keywords
ESD, ESD on Curriculum

Topic
Integrated Science Education

Link: https://ifory.id/abstract/bfB7eNwLGV4H

Corresponding Author
Ikmanda Nugraha

Institutions
International Program on Science Education, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia
Jl. Dr. Setaibudhi No. 229 Bandung 40154
*ikmandanugraha[at]upi.edu

Abstract
Comic strips and videos are two popular media used in today science education. The objectives of this study were to examine the learning outcomes and to explore the contributing factors that drive students to achieve the learning outcomes. A quasi-experimental design was employed. The participants were university students in the science education major from batch 2015 and 2016. Batch 2015 was assigned as endoscopic video class while batch 2016 was assigned as comic strips class. The results showed that there was no significant difference in students learning outcomes and its highest contributing factor for the learning outcomes was personal motivation followed by the lecturer and the media. We conclude that both media were able to facilitate students learning outcomes but motivating students personal motive was also essential due to the nature of university student as the independent learner.

Keywords
learning digestion process; comic strips; endoscopic video

Topic
Biology Education

Link: https://ifory.id/abstract/6ayCuUnNp2TW

Corresponding Author
Bety Etikasari

Institutions
a) Information Technology Departement, Politeknik Negeri Jember
Jalan Mastrip PO BOX 164, Jember, Indonesia
*syamsiar_kautsar[at]polije.ac.id

Abstract
Based on the results of monitoring data conducted by the Regional Environmental Management Agency (BPLHD) on 13 rivers that crossed the Jakarta area in 2010 showed that both river water and groundwater have high organic and inorganic pollutants. To cope with pollution, the environmental service periodically in the local city or regency government takes river water sampling at the waste disposal location to examine its water content. The location point for industrial waste disposal is not always easy to reach. Under certain conditions, officers must ride an assembled boat or walk down the river to access the location. Besides taking a long time, human safety factors are also a consideration. Based on these problems, in this study, a wireless sensor network was developed in an Unmanned Aerial Vehicle (UAV / drone) using 912 MHz radiofrequency. UAV in this study is equipped with various sensors to determine water quality, namely: PH, temperature/turbidity, Dissolved Oxygen (DO), and carbon dioxide. All sensors are integrated and monitored wirelessly using Universal Asynchronous Receiver Transmitter (UART) on the ground station. The telemetry system is designed to be able to send and receive data up to a distance of 1 KM in real-time. With a UAV created, monitoring of water quality can be done efficiently and more safely.

Keywords
UAV, telemetry, WSN

Topic
IT for Agriculture

Link: https://ifory.id/abstract/cy8a7evGF3Rb

Corresponding Author
Afriza yelnetty

Institutions
Faculty of Animal Production, Sam Ratulangi University

Abstract
Abstract. Probiotic are living microorganism if consumed will provided a therapeutic effect on consumers healthy by improving the microflora balance in digesive tract. The utilization of probiotic could be implemented by using varied application which will give beneficial for either human or animal health. The aims of this study was to evaluated quality of Lactic acid bacteria (LAB) as probiotic such as Lactobacillus plantarum YN 1.3 and Lactobacillus pentosus YN 1.6 after freeze drying used Zinc and different binding agent. The binding agent used i.e maltodekstrin, rice flour and skim milk. The results of this experiment showed that LAB decrease after freeze drying where L. plantarum YN 1.3 utilizing maltodextrin decrease 1,21 (Log cfu/g), utilizing rice flour decreased 1,66 (Log cfu/g) and utilizing skim milk LAB decrease 1,04 (Log cfu/g). LAB of L. pentosus YN 1,6 utilizing maltodextrin decrease 1,25 (Log cfu/g), utilizing rice flour decrease 2.11 (Log cfu/g) and utilizing skim milk decrease 1.00 (Log cfu/g). Although total lactic acid bacteria was decreased after freeze drying but overall dried culture still better as probiotic bacteria. Anti microbial activity of starter culture showed that Probiotic bacteria has ability to inhibit all of indicator bacteria such as, Salmonella, E. coli, S. aureus and B. cereus as pathogens bacteria. Evaluation for colour and solubility showed that dry culture used maltodextrin given the best appearance. The conclution of this research that probiotic bacteria L. plantarum YN 1.3 with zinc and maltodextrin as binding agent is the best product after freeze dryng.

Keywords
Frezee drying, L.plantarum YN 1.3, L. pentosus YN 1.6, Zinc, Binding

Topic
Food Safety

Link: https://ifory.id/abstract/jn6WvJqhp8kA

Corresponding Author
Nurhayati Nurhayati

Institutions
a)Department of Agricultural Product Technology – Faculty of Agricultural Technology – University of Jember, East-Java, Indonesia
Jl. Kalimantan No. 37 FTP UNEJ Jember 68121
*) nurhayati.ftp[at]unej.ac.id
b)Faculty of Medicine - University of Jember, East-Java, Indonesia
Jl. Kalimantan No. 37 FTP UNEJ Jember 68121
c)Department of Agricultural Industry Technology, Faculty of Agricultural – University of Trunojoyo, Madura, Indonesia
Jl. Raya Telang, Kecamatan Kamal, Bangkalan, Madura 69162 Indonesia

Abstract
Detection of microbial contamination by plating methods, especially coliform bacteria and other pathogens, many still use conventional methods and take about 7 days to find out the results. RTU media is one of the selective media to determine microbes more quickly based on the color of the colonies on the agar media. This study applied the use of RTU media (ready to use) for determination of biosafety of cassava product i.e Mi Lethek. Mi Letheg or Mi Lethek, is one of the culinary noodles originating from Bendo, Srandakan, Bantul, Yogyakarta, made from cassava starch and cassava flour. Production of Lethek noodles is still using the traditional machinery and equipments. The noodle is a murky brown color and less attractive (not white or bright like general noodles), without using chemical dyes or preservatives, but dry Lethek noodles can be preserved until more durable three months. Biosafety analysis was performed on dried Lethek noodles. The presence of enteric bacteria is known by the presence of blue colonies for Eschericia coli and purple/magenta for Salmonella. 10 g of dried Lethek noodles was dissolved into a physiological solution and continued with dilution up to 106, and 1 ml of sample was placed in a sterile petri dish then plated with RTU media (35oC) and incubated at 37oC for 24 hours. The results showed that microbial contamination in dried Lethek noodles was less than 105 cfu/g. Contamination of enteric bacteria was less than 102 cfu/10g. Indonesian standart (SNI) of dried noodles was 106 cfu/g for total of microbial and 10 cfu/g for enteric bacteria (E. coli). Although Lethek quality is still in SNI quality standards, but need efforts to improve the process like advanced technology of the machinery processing.

Keywords
chromogenic agar; enteric bacteria; Eschericia coli; RTU; Salmonella

Topic
Food Safety

Link: https://ifory.id/abstract/RJ6z9h73FuxT