Indonesia Conference Directory

Corresponding Author
Rasyadan Taufiq Probojati

Institutions
a) Division of Ecology, Generasi Biologi Indonesia (Genbinesia) Foundation, Jl. Swadaya Barat No. 4, Gresik Regency, 61171, East Java, Indonesia
*aisyahramadani47[at]gmail.com
b) Department of Biology, Faculty of Science and Technology, State Islamic University of Maulana Malik Ibrahim, Jl. Gajayana No. 50, Lowokwaru, Malang, 65144, East Java, Indonesia
c) Department of Biology, Faculty of Mathematics and Science, State University of Malang, Jl. Semarang No.5, Lowokwaru, Malang, 65145, East Java, Indonesia
c) Division of Genetics and Molecular Biology, Generasi Biologi Indonesia (Genbinesia) Foundation, Jl. Swadaya Barat No. 4, Gresik Regency, 61171, East Java, Indonesia

Abstract
Mangga Podang is an important local mango cultivar for economical aspect, especially at Kediri Regency. Mangga Podang found at Kediri Regency which spread in five sub-districts namely Semen, Mojo, Banyakan, Grogol, and Tarokan. However, the distribution and special traits in morphological character of the local Mangga Podang on the Kediri Regency have not been widely informed. This study objectives to determine the distribution maps and identify the morphological character of local Mangga Podang in five sub-districts on the Kediri Regency. This research used purposive sampling method for collecting data. Coordinate of local mango was taken by GPS, then the data was analyzed using QGIS software version 2.18. Morphological characters are examined by observing the morphology of leaves, stems, fruits, and seeds. Microclimate factors that were measured are altitude, intensity, temperature and soil moisture, soil pH, and soil nutrient. Morphological characters from five sub-districts in Kediri Regency were analyzed for homogeneity by statistical test. The results showed that Mangga Podang distribution has spread in residential areas and has different altitude factors between 85-459 meters above sea level. The total population found in this study were Mojo with 10 (11.9%), Banyakan 17 (20.23%), Grogol with 8 (9.52%), and Tarokan with 51 (60.71%). Mangga Podang from five sub-districts of Kediri Regency generally have homogenous morphological characters, but there were the special character which differs each other, they are the number of flowers in 1 panicle, the weight of ripe fruit and exocarp color of ripe fruits. This morphological variation dependent to light intensity, altitudinal, the velocity of wind and soil nutrient factors.

Keywords
Spatial distribution, morphology character, Kediri Regency, Mangga Podang local, altitude factors

Topic
Bioconservation

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

Corresponding Author
Kharirrotun Nafiah

Institutions
Universitas Negeri Malang

Abstract
Surface fires cause loss of vegetation that covers the soil, litter layer and top layer, which is the main part of the resources and habitat soil organisms, one of which is collembola. The aim of the study was to determine the comparability of the diversity and abundance of Collembola community in post fire land, transitional land and control land in Baluran National Park Situbondo. Sampling method with randomized group design was done by line transect sampling, total 120 plots in three different locations that are post fire land, transitional land and control land and the transect based on altitude. Collembola extraction was done by Eco 12 modification barless-tullgren extraction tool. The Results of this study show that a total of 547 individuals were included 9 species Collembola. Important value index species Paralobella cassagnau dominated on both post fire land and control land. Lepidocyrtus bourlet is a species that dominated in transitional land. The conclusion of this study is differences land and elevation take affect of the important value index, biodiversity index (H), eveness index (E), and richness index (R), this can occur because differences altitude allowed differences collembola composition and fires take affect the presence of collembola

Keywords
Collembola, fire, Baluran teak forest

Topic
Bioconservation

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

Corresponding Author
Dea Ajeng Pravita Suendi

Institutions
a) Graduate School of Biotechnology, Postgraduate Program, University of Jember, Jl. Kalimantan No. 37, 68121, Kampus Tegalboto, Jember, East Java, Indonesia
**deaajeng56[at]gmail.com
b) Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
c) Center for Development of Advanced Sciences and Technology, University of Jember, Jl. Kalimantan No. 37, CDAST UNEJ, Jember 68121, East Java, Indonesia
d) Faculty of Agriculture, University of Jember, Jl. Kalimantan No. 37, Krajan Timur, Sumbersari, Jember 68121, East Java, Indonesia
e) Faculty of Dentistry, University of Jember, Jl. Kalimantan, Krajan Timur, Sumbersari, Jember 68121, East Java, Indonesia
*banun_k.fkg[at]unej.ac.id

Abstract
Cryopreservation of Bone Marrow Stromal Cells (BMSCs) is needed to maintain the biological properties and minimize isolation repeatedly. The aim of this study was to optimize cryoprotectant agents to maintain the proliferative capability of BMSCs. This study used three group of combinations; 1) 90% FBS + 10% DMEM; 2) 90% DMEM + 10% DMSO; 3) 90% FBS + 10% DMSO and Cell Banker 1 (CB1) as a positive control. The study showed cell morphology of spindle, round and flatten-shaped. The cell viability in the second combination was 69.73% and 79.74%, the third combination was 68.08% and 74.85% while CB1 was 81.5% and 85% stored at -80oC and LN2, respectively. Cell density post-thawed in the second combination was 26.5x104 cells/ml and 31.25x104 cells/ml, the third combination was 24x104 cells/ml and 32x104 cells/ml while CB1 33x104 cells/ml and 35.5x104 cells/ml at -80oC and LN2, respectively. Cell proliferation capability differed significantly was (p<0.05). Population doubling time increases as long as with increasing incubation time. The use of the second and third combinations has the ability to recover almost as close to CB1 in post-thawed of cell proliferation capability so that it can be an option for cryopreservation of cells.

Keywords
Bone Marrow Stromal Cells, Cryopreservation, Cryoprotectant Agents

Topic
Biomedical Science

Link: https://ifory.id/abstract/p3zcmHGedJny

Corresponding Author
Ahmad Hapiz

Institutions
1Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Indonesia
2Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Mataram, Indonesia
3Department of Biotechnology, Bandung Institute of Technology, Indonesia

*Corresponding Email: ahmad.hapiz01[at]gmail.com
**Corresponding Email: fatur[at]unram.ac.id
*** Corresponding Email: hendrabio[at]um.ac.id

Abstract
This research aims to characterize the edible macrofungi at Kerandangan Protected Forest & Natural Park, West Lombok Regency, Indonesia. This research was a descriptive and explorative study. This research conducted from January to June 2016. The sample of edible Mushrooms was token by Cruise method. The sample collected by folowing the tarack that have been made, the cruise was done by seeing the right and left side a long the track untill the mushroom found and after that the mushroom were documented and collected into steril and ziplock. Identification has done throughout profile matching of macroscopic characteristic with mushrooms identification book and than we also did Phylogeny Analysis Based on Similarity morphological characters and Dendogram tree was reconstructed using PAST 3.0. The result showed that there are eight species of edible mashrooms found in the study area such as Termitomyces clypeatus, Termitomyces umkowaan ,Termitomyces sp. 1, Pleorotus flabelatus, Pleurotus ostreatus, Coprinus desimenatus, Tremella fuciformis, and Polyporus sp. All of them involved of Basidiomycota. Based on characterization and identification, the species are grouped into three ordos and five families. Most of the edible macrofungi growth at soil and deadwood. Base on Phylogeny Analysis using Similarity of morphological characters showed that species in the same genus has high index of similerity and base on all species it has index similerity about 0,40.

Keywords
Edible mushrooms, Identification, Kerandangan Protected Forest & Natural Park

Topic
Bioconservation

Link: https://ifory.id/abstract/8peE3bNYzBtu

Corresponding Author
Ani Rohanah

Institutions
Economics Faculty, Semarang State University - Indonesia
*E-mail : ani.rohanah716[at]gmail.com

Abstract
The research aims to determine the role of independent commissioners in moderating the influence of executive ownership and executive compensation on tax aggressiveness. This study uses mining, agriculture, property, real estate and building construction companies listed on the Indonesia Stock Exchange (IDX) in 2013 –2017. The sample selection used a purposive sampling method and obtained 18 companies with 90 units analysis. The method of data analysis in this research uses absolute difference test analysis on moderated regression analysis The result of this research indicates that executive ownership has a significant negative effect on tax aggressiveness. Meanwhile, executive compensation cannot effect on tax aggressiveness and independent commissioners cannot moderate both the relationship of executive ownership with tax aggressiveness and also executive compensation with tax aggressiveness. The conclusion of this research is that only executive ownership has an influence on tax aggressiveness. Therefore, companies must be more pay attention to provision of stock incentives to company executive.

Keywords
Keywords: Independent Commissioners, Executive Compensation, Executive Ownership, Tax Aggressiveness

Topic
Accounting

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

Corresponding Author
Sri Wulandari

Institutions
Medan State University

Abstract
This study aims to analyze how the influence of Indonesia-China bilateral economic relations on the Indonesian economy in 2005-2018. This study uses Indonesias balance of payments variable to measure the Indonesian economy. By analyzing the theory Balance Of Payment Keynesian so variable in this study include, Indonesias balance of payments as a dependent variable and the exchange rate IDR/CNY, Indonesias gross domestic product (Indonesias GDP), Chinas gross domestic product (Chinas GDP), Indonesias interest rates, and Chinas interest rates as an independent variable. The method used in this study is the ECM method (Error Correction Model). The results showed that in the short term the exchange rate IDR / CNY, Chinas Gross Domestic Product, the BI interest rate had a positive and significant effect on the balance of payments in Indonesia while the Indonesian Gross Domestic Product and Chinese interest rate had a negative and significant effect on the balance of payments in Indonesia. In the long run the exchange rate IDR / CNY has a positive and significant effect, Chinas Gross Domestic Product has a positive but not significant effect, the BI interest rate has a negative and no significant effect, Indonesia Gross Domestic Product has a negative and significant effect and the Chinese interest rate has a negative and no significant effect on balance of payments in Indonesia.

Keywords
Keyword: Indonesia, China, Indonesias Balance of Payments, Rupiah / yuan Exchange Rates, Indonesian GDP, Chinas GDP, Indonesias Interest Rates, Chinas Interest Rates.

Topic
Economics, Business and Management Education

Link: https://ifory.id/abstract/GJXRt432AB7W

Corresponding Author
Jen Sern Tham

Institutions
Jabatan Komunikasi
Fakulti Bahasa Moden dan Komunikasi
Universiti Putra Malaysia
43400 UPM Serdang, Selangor, MALAYSIA

Abstract
Dalam dunia yang dipacu dengan kemajuan teknologi pada masa ini, imej ialah satu unsur yang memberi impak yang besar terhadap organisasi. Imej dan identiti sesebuah syarikat atau firma didakwa mempengaruhi persepsi dan pemilihan terhadap jenama produk atau perkhidmatan. Perkara yang membezakan antara syarikat perbankan di Malaysia adalah bagaimana sesebuah syarikat itu mempersembahkan imej korporat mereka dalam usaha untuk menarik perhatian pelanggan. Imej korporat yang kukuh dipaparkan dikatakan mampu mempengaruhi kepercayaan pelanggan terhadap sesuatu produk atau servis perkhidmatan. Tujuan utama kajian ini adalah untuk mengenal pasti faktor-faktor yang menyumbang kepada kepuasan pelajar Universiti Putra Malaysia (UPM) tentang perkhidmatan yang ditawarkan oleh bank-bank komersial tempatan. Kajian ini dipandukan kepada Teori Isyarat dan SERQUAL. Seramai 150 orang responden daripada Bacelor Komunikasi, Fakulti Bahasa Moden dan Komunikasi telah menyertai kajian ini. Persampelan secara rawak telah digunakan dalam kajian ini untuk mendapatkan responden dan data telah dikumpulkan melalui borang soal selidik yang ditadbir sendiri oleh responden. Keputusan menunjukkan bahawa terdapat tiga daripada enam faktor utama pendorong kepuasan tentang perkhidmatan perbankan komersial dalam kalangan pelajar UPM iaitu dimensi empati, dimensi responsif dan dimensi kebolehpercayaan. Kesimpulannya, kajian ini dapat menentukan bahawa dimensi responsif ialah peramal utama terhadap kepuasan pelajar UPM tentang perkhidmatan perbankan komersial di Malaysia.

Keywords
Identiti korporat, imej korporat, kualiti perkhidmatan, perbankan komersial, Universiti Putra Malaysia

Topic
Halal Business Management, Marketing, and Communication

Link: https://ifory.id/abstract/rfR23tbKhFqT

Corresponding Author
Rini Nur Hasanah

Institutions
1-Electrical Engineering Department, Universitas Brawijaya, Malang, Indonesia
2-Electrical Engineering Department, Cal Poly State University, San Luis Obispo, USA

Abstract
This paper presents a hybrid power controller for electrical systems that incorporates AC and DC sources and loads to power a residential house. The controller is designed to optimize power consumption to draw power primarily from DC, renewable sources as well as draw power from AC, non-renewable sources only when supply from DC sources are insufficient. The device controls power delivered to AC and DC loads and power supplied by AC and DC. The first version of the hardware of the controller was designed and constructed to demonstrate the concept. Results from hardware tests utilizing solar panel, AC grid, and battery as energy sources showed the successful operation of the hybrid controller. The hybrid controller was able to supply a total of 1600W power from pre-conditioned 24V input voltages to a hybrid house with various AC and DC with different voltage and power requirements.

Keywords
ac/dc house, hybrid controller, optimization, power consumption, power controller

Topic
Renewable Energy

Link: https://ifory.id/abstract/R8whTcQYarV3

Corresponding Author
Dahried Wahyu Herlambang

Institutions
Electronic Engineering Polytechnic Institute of Surabaya

Abstract
A Three-phase induction motor is an electric machine that is widely used in the industry and electric vehicles. An Induction motor has some advantages such as strong and simple construction, relatively cheap prices with high reliability and low maintenance costs. To adjust the rotational speed of an induction motor can be driven by adjusting the input voltage and frequency. Usually, to change the input voltage and frequency was used a three phase inverter that requires DC voltage to be converted into three-phase AC voltage. However, this method has some disadvantages including non sinusoidal output voltage waveform also can cause high harmonics. Harmonics will cause an increase in losses that can decreasing the efficiency and disturbing the power system stability. The Direct Matrix Converter with Space Vector Modulation (SVM) method has several advantages that can solve the problem to get a good quality of electrical power system and stable performance can be obtained in driving three phase induction motor speed .

Keywords
Three-phase induction motor, Matrix converter, Space Vector Modulation (SVM), Harmonics.

Topic
Smart materials

Link: https://ifory.id/abstract/knCEv7AP8V6B

Corresponding Author
Idris Mandang

Institutions
a) Department of Geophysics, Faculty of Mathematics and Natural Sciences Mulawarman University
* idris[at]fmipa.unmul.ac.id

Abstract
El Nino Southern Oscillation (ENSO) has been related to climate anomalies throughout the world including East Kalimantan-Indonesia. Extreme rainfall is one of climate anomalies that related by ENSO. This research was analysis extreme rainfall and relationship with ENSO in East Kalimantan. The data set in this research start from 1986 to 2012 but some of stations only have data set from 1993-2012 and 1999-2012. The Correlation analysis and Gumbel are methods that use in this research. Gumbel is distribution method that can be used to predicted flood and the other disaster. Two, five, ten, twenty five, fifty and one hundred years return period for extreme monthly rainfall maximum can be found using the Gumbel Method. The largest rainfall values of two years return period obtained from sta-24 (535,07 mm), five years from sta-2 (788,84 mm), ten years from sta-7 (986,84 mm), twenty five years from sta-2 (1321,65mm), fifty years from sta-2 (1570,00 mm), and one hundred years from sta-2 (1816,51 mm). For the correlation analysis, most of stations were found positive correlation between Monthly rainfall and Southern Oscillation Index. The highest of coefficient correlation is 0,4 (21,4% from all of station). The other stations have correlation coefficient 0,3 (21,4%), 0,2 (32,1%) and less than 0,2 only 21% from all of stations. The result shows that generally rainfall in East Kalimantan related by ENSO.

Keywords
Extreme Rainfall, ENSO, SOI, Gumbel Method, Correlation Analysis.

Topic
Coastal and Ocean Dynamics

Link: https://ifory.id/abstract/JAneNfvZwFj7

Corresponding Author
Agustinus Anung WIDODO

Institutions
1Center for Fisheries Research-Indonesia
2CSIRO-Australia
3Research Institute for Marine Fisheries-Indonesia

Abstract
Abstract With the primary aim of addressing information gaps on the scale and operations of Indonesia-s FAD based tuna fisheries, to aid improved fisheries management, an Indonesia - Australia research collaboration conducted a study during Nov 2013 – Dec 2015 at four key fishing ports in eastern Indonesia and western Indonesia. The full outputs from this study, involving an enumeration program with skipper interviews, biological sampling and direct observations are to be published as final report and subsequent papers. Presented here are preliminary results from research at two ports in eastern Indonesia - Kendari (SE Sulawesi) and Sorong (West Papua). All tuna FADs in Indonesian waters are anchored and are of 3 main float types: steel pontoon (ponton), bamboo with bungalow (rakit), and polystyrene block (gabus). Subsurface attractors are biodegradable materials and most commonly palm branches (nipa and coconut), and do not include netting materials. Tuna fisheries based in Kendari and Sorong include the fishing gears hand-line/troll-line (HL/TR), pole and line (PL), and purse seine (PS) and fishing areas include the Indonesian Fishing Management Areas 713, 714, 715, 716, and 717. Estimating the total number of FADs in these FMAs is difficult because of the current lack of effective systems of FAD registration and monitoring, and also because of the desire of fishing companies and vessel skippers to keep FAD position information confidential. Estimates range from several hundred to several thousand FADs. From 484 fishing trips surveyed, the average number of fishing days in trips of PL and HL/TL vessels in Kendari was 3 days and 7 days respectively, and 6 days for PL vessels in Sorong. Vessels visited up to 7 FADs in a single trip and the level of success in fishing events on FADs within a fishing trip (FAD Success Rate; FSR) varied across the fleets. In Kendari, HL/TR and PL vessels had a FSR of 64.9% and 65.9% respectively. The FSR of PL vessels in Sorong was 84.9%. The average catch rates (per trip) of HL/TL vessels in Kendari in 2013, 2014, and 2015 were 1077 kg, 1273 kg and 980 kg respectively. PL vessels in Kendari had average trip catch rates of 1593 kg (in 2013), 2490 kg (in 2014), and 4260 kg (in 2015). The average catch landings by PL vessels in Sorong in 2013, 2014, and 2015 were 6515 kg, 11,633 kg, and 13,569 kg per vessel per trip respectively. The estimated catch rate range for PS vessels based in Sorong during 14 months (Nov 2013-Dec 2014) was between 7,700 – 12,932 tonnes/set/vessel. Catch compositions included 18 species for HL/TL, 9 species for PL, and 7 species for PS. Skipjack tuna (SKJ) were the dominant species, 73% by volume, in catches of PL in Kendari and PS vessels in Sorong 76% and 81% of total catch respectively but only made up 41% of HL/TL landings and 38% of PL landings in Kendari. Yellowfin tuna (YFT) made up the largest proportion (47%) of HL/TL catches in Kendari, compared to SKJ (41%). A large proporti

Keywords
Characteristics of tuna fisheries, associated with anchored FADs, west Pacific, Indonesian archipelago

Topic
Marine Resources, Conversation and ICZM

Link: https://ifory.id/abstract/V9dGHtFAkxCM

Corresponding Author
Aprilia Restuning Tunggal

Institutions
Universitas Darussalam Gontor Indonesia

Abstract
The purpose of this research is to answer the role of diplomacy conducted by Darussalam Gontor Modern Boarding school with Al-Azhar University in Egypt as a non-state actor in the field of education. Darussalam Gontor Modern Boarding School as one of the Institutions of Islamic Education and Islamic Boarding Schools in Indonesia has had a major part in educating the lives of the people and fostering the nation. In addition, Gontor has a significant role in maintaining relations with Al-Azhar University and the Egyptian Government. In this study, the method used is Data collection by conducting direct interviews with relevant sources (primary data) and using secondary data obtained from Journals, Books and News. The results of this study show that the role of diplomacy by Darussalam Gontor Modern Boarding School and Al-Azhar University in Egypt has made relations between the two institutions very harmonious and far from tensions. Therefore, Al-Azhar University in Egypt views Darussalam Gontor Modern Boarding School as an important institution and collaborative partner in Indonesia. Therefore Al-Azhar provides an additional scholarship quota for alumni students at Darussalam Gontor Modern Boarding School to continue their studies at Al-Azhar.

Keywords
Indonesia, Egypt, Diplomacy, Darussalam Gontor Boarding School, Al-Azhar University

Topic
International Relations

Link: https://ifory.id/abstract/aVxu9RAyeBDt

Corresponding Author
Eko Fajar Cahyono

Institutions
Islamic Economics Department
Faculty Economics and Bussiness
Airlangga University

Abstract
This paper tests for the short and long-run relationship between economic growth, carbon dioxide (CO2) emissions and energy consumption, using the Environmental Kuznets Curve (EKC) by employing both the aggregated and disaggregated energy consumption data in Indonesia. The Autoregressive Distributed Lag (ARDL) methodology approach was used to test the cointegration relationship; and the Granger causality test, based on the vector error correction model (VECM), to test for causality. The study does not support an inverted U-shaped relationship (EKC) when aggregated energy consumption data was used. When data was disaggregated based on different energy sources such as oil, coal, gas and electricity, the study does show evidences of the EKC hypothesis. The long-run Granger causality test shows that there is bi-directional causality between economic growth and CO2 emissions, with coal, gas, electricity and oil consumption. This suggests that decreasing energy consumption such as coal, gas, electricity and oil appears to be an effective way to control CO2 emissions but simultaneously will hinder economic growth. Thus, suitable policies related to the efficient consumption of energy resources and consumption of renewable sources are required.

Keywords
Environmental Kuznets Curve, Fossil Fuels, Indonesia, Renewable Energy

Topic
Energy Economics

Link: https://ifory.id/abstract/k9YTnH4PFyDv

Corresponding Author
Eko Fajar Cahyono

Institutions
Islamic Economic Department
Faculty Economics and Bussiness
Airlaggga University

Abstract
This study examines how the externalities of tempe-s industrial waste management in Kampung Tempe Surabaya are reviewed from Economics of Natural Resources and Environment in Islamic Perspective. This research is conducted by using qualitative approach with case study method. Data collection conducted in this study by in-depth interviews and direct observation to the object of research. Technical analysis used in this research is by data reduction, data presentation, as well as withdrawal conclusions and verification from in-depth interviews and direct observation. The results show that there are externalities of tempe-s industrial waste management in Kampung Tempe Surabaya which is indicated by absence of unpleasant odor from waste, makes environment of Kampung Tempe more cleaner, provide jobs, increase incomes, and get a facilities and infrastructure

Keywords
Externalities, Urban Traditional Industry, Kampung Tempe Surabaya, Waste Management.

Topic
Sustainable Development

Link: https://ifory.id/abstract/2RbBHA97PrWp

Corresponding Author
Eko Fajar Cahyono

Institutions
Islamic Economics Department
Faculty Economics and Busisness
Airlangga University

Abstract
This study examines how the externalities of Kampung Unggulan Kerupuk Surabaya are viewed from Islamic Economics of Natural Resources and Environment perspectives. Kampung Unggulan Kerupuk Surabaya is a cracker industry located in the city but still using traditional methods in the production-s process. This research method uses descriptive study case method. The data collection which conducted in this study was by in-depth and direct interviews with research subjects. The analysis technique used in this study was by data reduction, data presentation, and conclusions and results from direct observation from the research-s location. The result of the study shows that there are positive externalities of the existance of Kampung Unggulan Kerupuk Surabaya, such as employment opportunity, increased revenue, and facilities establishment. There are no negative externalities such as environmental pollution, and disruption of society-s health. Environmental management is carried out properly in accordance with the principles of environmental management in Islamic perspective.

Keywords
externalities, environmental management, natural resource economics, Kampung Unggulan Kerupuk Surabaya

Topic
Environmental Economics

Link: https://ifory.id/abstract/a42XLVuhY3pq

Corresponding Author
Eko Fajar Cahyono

Institutions
Islamic Economic Department
Faculty Economics and Business
Airlangga University

Abstract
The city of Surabaya obtained the adipura trophy in Indonesia in 2019 because it has a very good performance on environmental management, especially waste. To handle the problem, the mayor made a program, one of which was the construction of a compost house in Bratang. Waste management in the Bratang Compost House has a proven positive externality from odor and the sound produced does not exceed the prescribed standards. Besides that, the existence of a compost house can help preserve the environment of Surabaya and become a source of local PLTSa (garbage power plant). This paper also proves that waste management in the Bratang Compost House is feasible to run as evidenced by NPV > 0 and BCR > 1. This research can be a reference for governments in other regions in managing waste to be something that is beneficial for the community, environment, and local government. This paper will be an additional literature for the government, the community, academics, and those who care about the environment about the impact of Islamic perspective waste management.

Keywords
Garbage management, externalities, cost benefit analysis, Islamic Resource Economics in an Islamic perspective.

Topic
Sustainable Development

Link: https://ifory.id/abstract/m6YpbzPexEvc

Corresponding Author
Hilda Yunita Sabrie

Institutions
Faculty of Law
Universitas Airlangga - Surabaya

Abstract
Urgency of Liability Insurance against Environmental Damage; Impact of Development and Use of Advanced Technology Hilda Yunita Sabrie, Rizky Amalia and Prawitra Thalib Universitas Airlangga hilda.sabrie@fh.unair.ac.id The flourishing of countrys establishment and increasingly usage development of technology in an industry also has a negative impact on the environment. For example the case of PT Merbau Pelalawan Lestari who was sentenced to pay a fine to the State of Rp. 16.2 Trillion because it has been proven to do illegal logging that damages the environment. Another case is the British company, British Petroleum, which suffered an offshore well explosion and because of this the total loss reached Rp. 1,194 Trillion. Repressive government actions for the above cases are by prosecuting and making decisions in favor of the interests of the environment and the interests of the local community. It will be a new problem if, the court ruling cannot be immediately executed, on the other hand environmental damage must be quickly restored. Finally, the State must act by providing assistance in the handling and recovery of damaged environments, such as the Lapindo mudflow case, in Sidoarjo, East Java, Indonesia. In addition to repressive measures, the government has obliged industrial companies in certain fields to cooperate with insurance companies in terms of preventing environmental damage that may arise intentionally or unintentionally. But in practice, insurance companies also experienced several obstacles related to the implementation of the agreement, monitoring up to the payment of compensation. This is the focus of this research. Hopefully that the insurance company will get a formulation in making insurance agreements until the implementation of compensation payments. To answer this issue, researchers used doctrinal research methods; where this approach will still be guided by legislation and also legal concepts that have been made by legal experts and have been widely applied.

Keywords
Keywords: Insurance; Living environment; Industrial Company

Topic
Environmental Policy, Auditing and Risk Assessment

Link: https://ifory.id/abstract/VxthzNRXe63j

Corresponding Author
Nissar Ahmad Yatoo

Institutions
*Faculty, International Open University- Gambia
**Assistant Professor, SMVD University India.

Abstract
We test whether the international crude oil markets are globalized (as proposed by Adelman, M.A. International oil agreements. The Energy Journal 1984; 5; 1-9) or regionalized (as advocated by Weiner, R. J. Is the world oil market one great pool? The Energy Journal 1991;12: 95–107). We put forth arguments in support of studying the crude oil prices at different time horizons to augment the regionalization-globalization debate. Unlike previous studies, our results indicate that both the hypothesis make sense, albeit, for different crude oil market pairs, time horizons and time periods.

Keywords
Brent, Crude Oil, WTI, Globalization, Regionalization, Wavelet

Topic
Energy Economics

Link: https://ifory.id/abstract/k8jcdBEu9RQy

Corresponding Author
Praptini Yulianti

Institutions
Management Department, Faculty of Economic and Business, Airlangga University, Indonesia

Abstract
CSR refers to organizational actions and policies to achieve financial, social environmental sustainable development. Sustainability in an organization can be achieved if an organization is not only focused on the macro level that organization profitability achievement, but also must have moral responsibility on government, society, and employees. This study objective is to examine on the micro level, in this case, is employee extra role behavior. Corporate Social Responsibility (CSR) in organizations can influence extra-role performance or Organizational Citizenship Behavior (OCB) with mediating an employee pride in organizations or Organizational Identification (OID). This study is a quantitative study with spreading questionnaire among 140 manufacturing employees in Surabaya, Indonesia. The result of this study is that CSR has significance and positively influenced to OID and OID has significance and positive influenced OCB. This study Implication is employee perceptions on CSR is considered as very important in influencing an employee to evaluate moral responsibility on organizations.

Keywords
Corporate Social Responsibility, Organizational Identification, Organizational Citizenship Behavior.

Topic
Sustainable Development

Link: https://ifory.id/abstract/Vx3ubkfjtTdU

Corresponding Author
Praptini Yulianti

Institutions
Management Department, Faculty of Economic and Business, Airlangga University, Indonesia

Abstract
Organizations can be sustainability development so it is becoming some needs to balancing between profitability and moral responsibility through Corporate Social Responsibility. This study objective is to explore external and internal CSR policy in attracting millennials employees regarding their values. Data collected with an online questionnaire and technique analyses using PLS. The result of this study states that all hypothesis is supported. External CSR is significantly influenced by P-O fit, Internal CSR is significantly influenced by P-O fit and P-O fit is significance influenced among Job Pursuit Intention. The implication of this study is organizations which have positive Internal CSR policies are more attractive to potential applicants because the organizations are seen to " care for" its employees and external CSR is viewed as a means of enhancing corporate image and organizational attraction for job seekers in competitive environments.

Keywords
Internal CSR, External CSR, P-O fit, Job Pursuit Intention

Topic
Sustainable Development

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

Corresponding Author
Praptini Yulianti

Institutions
Management Department, Faculty of Economic and Business, Airlangga University, Indonesia

Abstract
The human dimension is the key resource for maintaining organizational competitive advantage and sustainable development. This dimension is related to the processes of generating social health and enhancing employee well being, such as (organizational justice, employe-s work engagement, trust on organization, Innovative behavior) could be a key component of the human dimension of organizational sustainability. The objective of this study is to examine the influence of organizational procedural justice, work engagement, trust on the organization on innovative behavior. Sample of this study is 120 employees in television media, on marketing division, technique, program, production, and news in Surabaya. These division have become sample because of the jobs inside that division demand innovation. Data collected with questionnaire and technique analyses using PLS. The result of this study is procedural justice significance influenced to work engagement and trust in the organization. Trust on organization and work engagement are significantly influenced by innovative behavior. The implication of this study is organizations must create justice climate so employee perceives well being that they will explore innovative behavior as a human performance to generate organizational sustainability.

Keywords
Procedural justice; Work engagement; Trust on the organization; Innovative Behavior

Topic
Sustainable Development

Link: https://ifory.id/abstract/CPZB92XH6QfY

Corresponding Author
Eka Frenty Hadiningsih

Institutions
1) Midwifery Master-s Degree Program Faculty of Medicine, Brawijaya University Malang, East Java, Indonesia
2) Department of Obstetrics and Gynecology, Faculty of Medicine, Universitas Brawijaya, RSUD dr. Saiful Anwar Malang, East Java, Indonesia
3) Department of Clinical Microbiology, Faculty of Medicine, Brawijaya University Malang, East Java, Indonesia
4) Departement of Pathology Anatomy, Faculty of Medicine, Brawijaya University Malang, East Java, Indonesia
5) STIKES Wiyata Husada Samarinda, East Kalimantan, Indonesia
6) Midwifery Study Program, Faculty of Public Health, Indonesian Muslim University Makasar, South Sulawesi, Indonesia

a) Corresponding author: e.frenty.h[at]gmail.com
b) Another author: suryantisudirman[at]yahoo.com, mayasari.ardela[at]gmail

Abstract
Abstract. The Depo medroxyprogesterone acetate (DMPA) is a type of hormonal contraceptive containing progesterone that causes a hypoestrogenic response that inhibits follicle development, prevents ovulation, and causes endometrial atrophy due to suppression of epithelial and stromal cell proliferation. Natural herbs like bengkoang (Pachyrhizus erosus) can be used to reduce the negative effects of DMPA. Bengkoang is widely known as containing isoflavones with chemical properties and functional structures that resemble 17eta estradiol. This study aimed to determine the effect of bengkoang ethanol extract on the number of ovarian follicles, epithelium, and endometrial stroma in DMPA treated Rattus norvegicus. This study used 25 rats as experimental animals, which were divided into five groups consisting of one negative control group (KN) without DMPA and bengkoang extract, and four treatment groups given DMPA at 2.7 mg every three days repeated four times. After the induction period, the hypoestrogenic condition was evaluated through vaginal smear. Three groups were treated by bengkoang extract at a dose of 70 mg/200g BW/day (P1), 140 mg/200 g BW/day (P2), and 280 mg/200 g BW/day (P3). In this study, data were analyzed using a one-way ANOVA and the Least Significant Difference (LSD) test. The results showed that there were significant differences (p< 0.05) in the number of antral follicles, the amount of the epithelium, and the amount of endometrial stroma in the group treated by bengkoang extract dose of 280 mg/200g BW/day. This study suggests that bengkoang extract demonstrated a change in the number of ovarian follicles, epithelium, and endometrial stroma compared to the positive control group treated only with DMPA.

Keywords
DMPA, ovarian follicles, endometrial epithelium, endometrial stroma, Pachyrhizus erosus.

Topic
Biomedical Science

Link: https://ifory.id/abstract/uhbp7Amk6eEw

Corresponding Author
Erna Amin

Institutions
a) Midwifery Master-s Degree Program Faculty of Medicine, Brawijaya University Malang, East Java, Indonesia
*midwife_erna[at]yahoo,com
b) Department of Obstetrics and Gynecology, Faculty of Medicine, Universitas Brawijaya, RSUD dr. Saiful Anwar Malang, East Java, Indonesia
c) Department of Clinical Pathology, Faculty of Medicine, Brawijaya University Malang, East Java, Indonesia

Abstract
Postpartum blues is the most common mood disorder commonly found in postpartum period. This disorder negatively impacts on the health of these mothers and their babies which results in poor treatment. The pathophysiology of postpartum blues is known to be associated with the noradrenergic system. This study aims to determine the effect of aromatherapy oils of lavender inlahance on norepinephrine levels of mothers with postpartum blues. A quasi-experimental study with a pretest-posttest control group design was conducted from April to May 2019 in three health centers. The purposive sampling method was used to obtain data from the treatment and control groups which culminated in 28 people. Furthermore, five drops of aromatherapy lavender administered on cotton was inhaled by the groups for 15 minutes twice a week for 4 weeks. Urine was collected to measure norepinferin metabolites, the data analyzed using the Wilcoxon signed rank test. A total of 55 postpartum woman were screened, out of which 33 (60%) experienced postpartum blues. Data from norepinephrine measurement results analyzed using the Wilcoxon signed ranks test with a p value of 0.157 > 0.05, showed no significant difference in the norepinephrine levels of the control group. While in the treatment group, p value is 0.001 < 0.05 which indicates significant differences. Lavender aromatherapy effectively reduced the levels of norepinferin in woman with postpartum blues

Keywords
Postpartum blues, Lavender, Norepinephrine

Topic
Biomedical Science

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

Corresponding Author
Rina Rifqie Mariana

Institutions
Culinary Education Study Programme
Universitas Negeri Malang
Malang, Indonesia

Abstract
This study aimed at analysing the nutritional and fatty acid composition of a bowl of meatball soup sold by 5 bakso Malang restaurants in Malang, Indonesia. The analysis was performed according to the instructions for food and beverage testing outlined in the Indonesian National Standard (SNI) 01-2891-1992. The results showed that the average nutritional value of a bowl of meatball soup consists of protein: 52.42-78.97g, fat: 33.16-59.22g, water: 193.57- 285.61 g, ash: 14.76-24.15 g, carbohydrate: 73.84-84.23g, iron: 12.38-19.30 mg, calcium: 262.91-388 mg. Also, the level of unsaturated fatty acids is higher than saturated fatty acids with a ratio of 1.3:1.

Keywords
Nutrition, Fatty Acid, Bakso Malang

Topic
Biochemistry

Link: https://ifory.id/abstract/Q7kgnUPx8mMY

Corresponding Author
FAISAL HUSSIN

Institutions
a) Centre for Sustainable Nanomaterials (CSNano), Ibnu Sina Institute for Scientific and Industrial Research (ISI-ISIR), Universiti Teknologi Malaysia (UTM), 81310 UTM Johor, Malaysia
b) Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310 UTM Johor, Malaysia
c) Department of Biology, Faculty of Science, Universiti Teknologi Malaysia (UTM), 81310 UTM Johor, Malaysia
*arahimyusoff[at]kimia.fs.utm.my

Abstract
Bacterial infection and injury caused by dressing removal are two concerning issues affecting the healing process in treatment of skin damaged. Electrospun nanofiber as substrate demonstrates promising results in tissue recovery process by promotion of cell adhesion and expansion. In this study, the electrospun of polyvinyl alcohol/poly-ε-caprolactone (PVA/PCL) nanofiber coated with two different types of natural antibacterial agents, i.e. poly-L-lysine and chitosan were investigated. PVA-PCL coated antibiotic chlorhexidine gluconate (CHG) was also prepared for comparison purpose. The FESEM images showed an increase in fiber diameter with the presence of antibacterial agents. The effects of antibacterial agents were examined by Disk Diffusion Test against S.aureus and E. coli based on measurement of inhibition zone of bacterial growth. The results reveal that CHG, poly-L-lysine and chitosan started to inhibit the growth of bacteria when coating in 5, 15 and 20 min, respectively. Besides, the tensile strength values of PVA/PCL/antibacterial agents tested appear to be within the range of tensile strength values for human skin which conclude that the PVA/PCL/antibacterial agent nanofiber is suitable for regenerating human skin. Lastly, the hydrophilicity of the electrospun of PVA/PCL/antibacterial agents nanofiber was confirmed by water contact angle measurement which is 0°, thus theoretically can improve the cell adhesion and expansion onto the skin membrane.

Keywords
Electrospun; Polyvinyl alcohol; Poly-ε-caprolactone; Chitosan; Scaffold

Topic
Biomaterial Science

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

Corresponding Author
Sheilla Rachmania

Institutions
a) Graduate School of Biotechnology, University of Jember;
*sheilla.dr.fk[at]unej.ac.id
b) Faculty of Medicine, University of Jember;
c) Center for Development of Advance Science and Technology (CDAST), University of Jember,
d) Faculty of Mathematics and Natural Sciences, University of Jember

Abstract
Combatting malaria, as one of the world health burdens requires effective vaccine development, but high polymorphism in one protein vaccine candidate, Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1), is a major hurdle. One domain in its head structure, Duffy-binding like (DBL) domain, has a binding area to ICAM-1 receptor found in cerebral malaria patient, hence making this domain as a key to develop a malaria vaccine. Identify the epitopes within this protein is pivotal before formulating a peptide-based vaccine development strategy. This study aimed to identify the conserved epitopes by using an immunoinformatic approach. The protein was subjected to hydrophobicity attributes, Th-cell epitopes, and B-cell epitopes by using NN-align algorithm, Bepipred 2.0, and Kolaskar Tangaonkar methods combined with K-means clustering method to identify overlapping epitope. The result showed that the hydrophobicity value was 32.62 indicating that this protein is soluble and potentially fit into HLA alleles active site, but further NN-align algorithm showed no overlapping of Th-cell epitope positions for three Indonesian alleles. Three B-cell conserved epitopes in the position of 77-89, 236-254, and 360-377 amino acids were identified with one cluster overlapping with ICAM-1 determinant binding area. This information is valuable in constructing a subunit peptide-based malaria vaccine candidate.

Keywords
DBL2β, PfEMP1, epitope, immunoinformatic

Topic
Bioinformatics

Link: https://ifory.id/abstract/JGBtZpPF3hxK

Corresponding Author
Rahma Auri Wijayanti

Institutions
Faculty of Medicine, University of Islam Malang

Abstract
Introduction Osteoarthritis (OA) due to predispose and biomechanics factors leads to direct degradation of the cartilage. This degradation process breakdowns the lipopolysaccharide of macrophages which then increases leukotrienes- production and plasmatic leukocyte. The red ginger (Z. officinale) and cogon grass (I. cylindrica) rhizomes are known to have an anti-inflammatory and antioxidant properties. This present study evaluated the effects of Z. officinale and I. cylindrica decoction on plasmatic leukocytes and its differential count in osteoarthritic-induced Wistar rats. Materials and methods Twenty five male Wistar rats aged four months, weighed 270-300 g were grouped into five groups; control (CTL), osteoarthritic rats (OA), and 3 different doses of treatment groups (P1, P2, P3). Each rat of OA and treatment groups were given 0,1 ml right knee intraarticular complete Freund-s adjuvant (CFA) injection to induce local osteoarthritic state. All treatment groups were orally administered with 40 mg/day of I. cylindrica decoction. However, P1, P2 and P3 groups were given 9, 18 and 36 mg of Z. officinale decoction each day for 10 days, respectively. Plasmatic leukocytes and its differential count were measured using hematology analyzer. Data were statistical analyzed with One Way ANOVA test followed by post hoc test. The significant level at P less than 0.05. Results The plasmatic leucocytes was 11.46 ± 7.72, 53.84 ± 22.39, 4.44 ± 1.04, 3.76 ± 0.35, and 8.94 ± 4.66 respectively in CTL, OA, P1, P2, and P3 (103/µL). The treatment groups have lower plasmatic leucocytes in comparison with OA group (P <0.05). We then evaluated the differential types of leucocyte; granulocyte, lymphocyte and monocyte. Plasmatic granulocyte was 2.03 ± 1.42, 13.7 ± 9.05, 0.21 ± 0.08, 0.47 ± 0.74, and 0.95 ± 1.11 respectively in CTL, OA, P1, P2, and P3 (103/µL). Plasmatic lymphocyte was 7.88 ± 5.43, 30 ±13.03, 3.14 ± 0.62, 2.9 ±0.34 and 6.6 ± 3.95 respectively in CTL, OA, P1, P2, and P3 (103/µL). Plasmatic monocyte was 1.72 ± 0.78, 8.12 ± 4.14, 1.08 ± 0.43, 0.74 ± 0.13 and 1.38 ± 0.63 respectively in CTL, OA, P1, P2, and P3 (103/µL). The treatment groups have lower differential count of leucocytes in comparison with OA group (P <0.05). Conclusions Decoction extract of Z officinale and I cylindrica reduced plasmatic leukocytes and corrected its differential count in osteoarthritic-induced Wistar rats. Combination of Z officinale and I cylindrica may have potential as anti-osteoarthritis. Keywords: Zingiber officinale, Imperata cylindrica, leucocytes, osteoarthritis *Correspondence: Dr. dr. Doti Wahyuningsih, M. Kes Faculty of Medicine University of Islam Malang Address: Jl. MT. Haryono 193 Malang, East Java province, Indonesia 65145 E mail address: dotiwahyuningsih@unisma.ac.id *Correspondence: dr.Rima Zakiyah,Sp.Rad Faculty of Medicine Uniersity of Islam Malang Address : Perum. Galxy Regency,Malang, East Java province,Indonesia

Keywords
Zingiber officinale, Imperata cylindrica, leucocytes, osteoarthritis

Topic
Biomedical Science

Link: https://ifory.id/abstract/aDthL2bTEMcZ

Corresponding Author
Orchidea Rachmaniah

Institutions
1 Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
2 Halal Centre, Research-Based Community Development Program (Lembaga Penelitian dan Pengabdian Masyarakat/LPPM), Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
3 Department of Chemical, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
4 Department of Chemical Industrial Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia
5 Laboratory of Technology Medic, Polithecnic of Health, Pucang Jajar Tengah 56, Surabaya 60282, Indonesia

Abstract
High number of students of Institut Teknologi Sepuluh Nopember (ITS) of Surabaya, ca. 18,698 of registered college students in 2018/2019 academic year, make it as a potential consumers especially in food industry. The condition is also supported with two polytechnics i.e. Politeknik Elektro Negeri Surabaya (PENS) and Politeknik Perkapalan Negeri Surabaya (PPNS). Both of the polytechnics have ca. 3,855 and 2,479 respectively for PENS and PPNS. Most of them purchased food or beverages from on-campus food service, canteens. However during the Ramadhan festival, most of the canteen is closed. Therefore, many seasonal food stalls were present at “Bundaran ITS” starting at 15.00 till 20.00 WIB (West Indonesian Time Area), provided food or beverages for breaking the fast. Unfortunately, most of them is a healthy foods. Therefore, survey were conducted to check the healthiness of the food, meaning the food colorant additive especially red colorants. Moreover, this study also examined relationships among healthy food awareness, behavioural intention toward healthy foods, and actual behaviour of the ITS consumers. They were 37 samples were collected during two periods of survey, at 9-12 May 2019 and 28-29 May 2019. The collected samples were focused that samples which might had red colorant. The collected samples were classified into three categories: beverages (32.43%), ketchups (54.05%), and snacks (13.51%). Mostly, all sample contained both amaranth and rhodamine B, illegal red colorants. Only two samples of ketchup (from 20 samples) were absent in both amaranth and rhodamine B. All of the samples contain red allure, erythrosine, and ponceau 4R, legal red colorants. Though, they were legal, some were beyond the maximum allowable value, ca. >300 mg/g.

Keywords
Food Additives, Food awarness, Healthy Food, Red Colorants, Rhodhamine

Topic
Environmental Science and Engineering

Link: https://ifory.id/abstract/fpmUdLy9ngZY

Corresponding Author
Orchidea Rachmaniah

Institutions
Department of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia

Abstract
Curcuminoids have been successfully extracted from Curcuma zeodaria powder with Natural Deep Eutectic Solvents (NADES) as solvent. Ionic types of NADES such choline chloride-citric acid-water (CCCA-H2O = 1:1:18, mole ratio) and choline chloride-malic acid-water (CCMA-H2O = 1:1:18, mole ratio) gave the highest yield of extracted curcuminoids, ca. 0.270±0.025 and 0.355±0.055 mg/g respectively for CCCA and CCMA. However, the final product of the extracted curcuminoids is mixed in the NADES matrix. Hence, a separation process by means a recrystallization is mandatory. Isopropanol-n-hexane in different variance of volume (1:1, 1:1.5, 1:2, 2:1, and 2.5:1 v/v) are observed as a solvent in the proposed recrystallization process as well as the solubility of either of solely choline chloride or curcuminoids in both isopropanol and n-hexane. Unfortunately, either of CCCA-H2O (1:1:18) or CCMA-H2O (1:1:18) and curcuminoids form a new mixture of NADES with isopropanol. Therefore, all the of polar constituents of NADES, i.e. choline chloride, citric acid/malic acid, and water, should be first removed before recrystallized. Isopropanol-ne-hexane (1:2, v/v) give the highest recovery of curcuminoids ca. 55.56% by recrystallization process. Whereas solid-phase extraction (SPE) C18 resin methods seem suitable for removing the polar constituents of NADES.

Keywords
Enrichment, Curcuminoids, NADES, Recrystallization, Solid Phase Extraction

Topic
Chemical Engineering

Link: https://ifory.id/abstract/ze9mn8yGcAhD

Corresponding Author
Eka Larasati Amalia

Institutions
Malang State Polytechnic

Abstract
Forecasting the number of new student enrollments at Politeknik Negeri Malang offers the campus a good help to discover new innovations and good marketing strategies. Besides, it can be used as a reference in planning the teaching and learning process. This study used the Single Exponential Smoothing method as a forecasting method. Forecasting accuracy uses Mean Absolute Deviation (MAD), Mean Square Error (MSE), and Mean Absolute Percentage Error (MAPE). Based on the calculation results, the smoothing constant result is α = 0.9 which means it has the smallest error values for the three forecasting accuracy calculation methods.

Keywords
forecasting, registration, students, single exponential smoothing

Topic
Information Systems Technology

Link: https://ifory.id/abstract/ZQanPTpKHg8D