Indonesia Conference Directory

Corresponding Author
Inayah Swasti Ratih

Institutions
a) Fakultas Ekonomi dan Bisnis, Universitas Airlangga
Jl. Airlangga No.4 - 6, Surabaya 60115, Indonesia
*inayah.swasti.ratih-2018[at]pasca.unair.ac.id

b) Fakultas Ekonomi dan Bisnis, Universitas Airlangga
Jl. Airlangga No.4 - 6, Surabaya 60115, Indonesia
*iswati[at]feb.unair.ac.id

c) Fakultas Ekonomi dan Bisnis, Universitas Airlangga
Jl. Airlangga No.4 - 6, Surabaya 60115, Indonesia
*tamimah-2018[at]pasca.unair.ac.id

Abstract
The tourism industry which continues to experience development now has new innovations in its fields, namely Halal Tourism. Halal tourism is a form of tourism based on Islamic ideology. Now several countries have begun to develop this industry. This study aims to explain the management characteristics of the halal tourism industry in several countries, Malaysia, Indonesia, and Thailand. The three countries have their own characteristics which are adjusted to the culture and system of government of each country. At present, the three countries have a large role in the development of halal tourism in the world. In addition, the three countries have models and innovations to increase visitor interest in their country. The research method used is literature study, that whose data and information are obtained from library sources originating from books, research results, journals and other reading materials that still have relevance to the topic of this research. The halal tourism industry developed by the three countries will be taken into consideration in the selection of tourist destinations besides it will be an example of other countries to develop halal tourism models in their countries.

Keywords
Halal Tourism, Halal Industry, Islamic Economic

Topic
Social and Economic Issues

Link: https://ifory.id/abstract/8LTW6Ccq4h9R

Corresponding Author
Tamimah -

Institutions
a) Fakultas Ekonomi dan Bisnis, Universitas Airlangga
Jl.Airlangga No 4-6, Surabaya 60115, Indonesia
*tamimah-2018[at]pasca.unair.ac.id

) Fakultas Ekonomi dan Bisnis, Universitas Airlangga
Jl.Airlangga No 4-6, Surabaya 60115, Indonesia
*sri.herianingrum[at]feb.unair.ac.id

c)Fakultas Ekonomi dan Bisnis, Universitas Airlangga
Jl.Airlangga No 4-6, Surabaya 60115, Indonesia
*inayah.swasti.ratih-2018[at]pasca.unair.ac.id

Abstract
In achieving sustainable development goals in a country, the role of each institution must be optimal, one of the roles of social institutions that currently has considerable potential in improving the SDGs, namely the existence of productive waqf models. Productive waqf is a scheme of donating endowments for the ummah, namely by producing these donations to produce a sustainable surplus. This study aims to analyze the models of the application of productive waqf carried out by social institutions in Indonesia and their influence on the SDGs. The research method used is the observation of waqf institutions and study of relevant literature. The implication of this research is as an evaluation material for waqf institutions to develop productive waqf models and as a reference for the government and other institutions in synergizing to achieve the SDGs goals.

Keywords
waqf productive, Sustainable Development Goals (SDGS)

Topic
Social and Economic Issues

Link: https://ifory.id/abstract/MD8b9gUPEVQY

Corresponding Author
Intashofal Laili

Institutions
Postgraduate School, Universitas Airlangga
intashofal.laili-2018[at]pasca.unair.ac.id

Abstract
Adherence is a condition where the patient adheres to his treatment on the basis of his own consciousness, not merely obeying the doctors orders. Compliance is an important factor in the success of ARV therapy. This research uses the design of Mann Whitney test. The variables in this study consisted of dependent variables namely medication adherence and independent variables of CD4 increase in HIV AIDS. The population in this study were people with HIV AIDS in Syarifah Ambami Hospital Rato Ebu Bangkalan. Samples were taken by PLHIV who conducted CD4 examinations and within the same time period with a total sample of 61 people. Data collection using a questionnaire. Data is analyzed using the Mann Whitney test and the results showed that adherence to taking medication for CD4 levels was obtained a P value = 0,000 (α: 0.05). This shows that there are differences in CD4 that are obedient and non-adherent taking medication in people with HIV AIDS in Syarifah Ambami Hospital Rato Ebu Bangkalan. Adherence to taking antiretroviral drugs is needed in people with HIV AIDS to increase self-esteem, through involvement in peer support activities.

Keywords
Drug compliance, CD4

Topic
Health and Medicine

Link: https://ifory.id/abstract/aqbPdypmYL3G

Corresponding Author
Darmawan Darmawan

Institutions
Magister of Science, Law and Development Post Graduated School Airlangga University

Abstract
In the implementation of the Regional Government, Civil Service Police Unit (later called Satpol PP) has a strategic role related to the implementation of the obligations of regional government. Generally, Satpol PP has three function are : 1) Implementation of Public Peace and Order; 2) Enforcement of Regional Regulations; and 3) Community Protection. On the basis of the implementation of their duties, the Satpol PP has a formative foundation to establish Law Number 23 of 2014 concerning Regional Government; Government Regulation Number 16 of 2018 concerning Satpol PP; Minister of Home Affairs Regulation Number 54 of 2011 concerning Satpol PP Operating Standards, as well as regional regulations related to implementation technical tasks in each field. The implementation of duties in enforcement of regional regulations area, Satpol PP carried out activities such as first to provided guidance to the community and legal entities that violated regional regulations; second they conducted non-judicial control ; third they did enforce the law regarding the judiciary and the last are to supervise violation. Enforcing local regulations done by Satpol PP in Gresik Regency is carried out through pre-emptive, preventive, persuasive and represive approaches to the community without selective objectives with the aim of achieving the Regent-s vision and mission and to increase the locally-generated revenue.

Keywords
Satpol PP; function; law enforcement

Topic
The Role of Law in Supporting Sustainable Cities

Link: https://ifory.id/abstract/Lf4RB6gbCpet

Corresponding Author
Aletheia Threskeia

Institutions
a) Post Graduate School, Universitas Airlangga, Surabaya, Indonesia
*aletheia.threskeia-2018[at]pasca.unair.ac.id
b) Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia

Abstract
Background: Enterotoxigenic Escherichia coli (ETEC) has been found as common cause of diarrhea in developing country. According to previous research by Jayakumari and friends in India, the leaf extract of Pisonia grandis has antimicrobial compounds. Therefore, researcher examines the use of Pisonia grandis leaf extract against ETEC. Objective: To determine whether the leaf extract of Pisonia gradis can be used as antimicrobial agent against Escherichia coli and ETEC. Methods: This was a true experimental research, which is done in the laboratory. The bacteria used is Escherichia coli and ETEC. Pisonia grandis leaves extracted with ethanol 70% is divided in eight different concentrations. Antimicrobial activity performed by broth dilution method to determine the Minimum Inhibitory Concentration (MIC). Results: There was turbidity changes at all test tubes up to fifty percent concentration , including the positive control tube, but there was no change in turbidity in the negative control tube. Growth of bacteria colonies was obtained when the tubes were planted in Nutrien agar. Conclusion: It can be concluded from the results that there was no antimicrobial activity in ethanol extract of Pisonia grandis leaves up to fifty percent concentration against Escherichia coli and ETEC.

Keywords
Pisonia grandis, Escherichia coli, Enterotoxigenic Escherichia coli, ethanol extract

Topic
Health and Medicine

Link: https://ifory.id/abstract/2kLm7fDuvVnJ

Corresponding Author
sudirman sudirman

Institutions
a) Universitas Wiralodra, Jln. Ir. H. Juanda Km 3 Indramayu 45211, Indonesia
*sudirman[at]unwir.ac.id
b) Universitas Pasundan, Jl. Sumatera No.41, Babakan Ciamis, Sumur Bandung, Kota Bandung, Jawa Barat 40117, Indonesia

Abstract
This study integrated ethnomathematics into augmented reality technology (AR) with the aim of assisting mathematics pre-service teachers- learnin geometry technology. The research used was ADDIE (Analysis, Design, Development, Implementation, and Evaluation) approach. The stages used in this study consisted of (1) exploration; (2) design, (3) development; and (4) implementation. This study used two data analysis techniques: (1) qualitative was conducted for exploration studies, describing the design and development process; (2) quantitative was conducted to investigate the result of the use of integrated ethnomathematics AR technology implementation to 56 Mathematics pre-service teachers- at Indramayu, Indonesia. The results showed that (1) ethnomathematics values in the form of uma lengge traditional house, ethnic karo houses, wa rebo traditional house, demak grand mosque, kaghati kolape kite can be used as marker objects on augmented reality technology and to explain geometry concept;. (2) The design stages consist of designing integration concepts, AR interfaces, and learning system development;. (3) The results of implementation analysis can (a) help to increase learning interaction activities (b) improve the understanding of concepts and geometry visualization, (c) provides information to Mathematics pre-service teachers-related to ethnomathematics and local wisdom in Indonesia.

Keywords
Ethnomathematics; Augmented Reality (AR) Technology; Geometry Learning; Mathematics pre-service teachers-

Topic
Mathematics Education

Link: https://ifory.id/abstract/EHM7CYZVxNQq

Corresponding Author
YULI FITRIANTI

Institutions
a) Department of Mathematics Education Raden Fatah State Islamic University of Palembang, Indonesia
*yulifitrianti_uin[at]radenfatah.ac.id
b) Department of Mathematics Education, Universitas Pendidikan Indonesia
c) Department of Mathematics Education, Universitas Pendidikan Indonesia

Abstract
Knowing students difficulties in using the concept of division and divisibility is one of the basic needs to design genetic decomposition of that concept. This article is a report from qualitative research that discusses conceptual issues about the idea of division and divisibility given by prospective mathematics teacher students who use the APOS theory. The data for the study were collected from an interview conducted on 3 pre-service mathematics teachers in their second year and who have attended and completed a test on the division and divisibility in an elementary number theory course. These participants were selected based on their performance in the test. However, the interview conducted showed that there are five difficulties involved and they include solving the divisibility problem on integers, algebraic manipulation and structure sense, distinguishing between variables and parameters on division problem presented in algebraic expression, associating between division algorithm and definition, and application of divisibility properties and theorems.

Keywords
Difficulties, Division Concept, Divisibility Concept, APOS Theory

Topic
Mathematics Education

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

Corresponding Author
Muhammad Asfar

Institutions
Department of Food Science and Technology, Agricultural Faculty of Hasanuddin University, Makassar 90245, Indonesia

Abstract
Homogenization of the stator motor has the working principle of stirring, homogenizing, and grinding materials. Ultrasonication also has a working principle of breaking the particles with ultrasonic waves that have an acoustic cavitations effect, potentially developed into a method for producing nano-FPC. Therefore, the combination of both methods was developed to produce nanometer-scale FPC materials. The combined method of ultrasonication (5, 10, 15) min and various long-acting homogenization (5, 10, 15) minutes with homogenization speed (6,500, 9,500, 13,500, 17,500, 21,500) rpm using ultra turax T 25 basic. The results showed that with 5-minute ultrasonication able to break down the size of FPC half of its original size. The best combination of homogenization-ultrasonication treatment is the homogenizing speed of 6500 rpm for 5-minutes, and ultrasonication for 5-minutes produces nano FPC. The best homogenization-ultrasonication method is capable of producing FPC with size <100 nm.

Keywords
Homogenization, ultrasonication, Nanotechnology, Nano FPC, Nano Scale

Topic
Postharvest and food engineering

Link: https://ifory.id/abstract/GTMj7Rz4WAXh

Corresponding Author
Putri Agustina Karokaro

Institutions
Agricultural Engineering Department, Universitas Gadjah Mada, Jl. Flora 1, Bulaksumur, Yogyakarta

Abstract
This study aimed to determine the effect of manipulated cicada sound frequency on evapotranspiration and growth rate of cayenne pepper (Capsicum annum L.). The manipulated cicada sound was exposed with a frequency of 3000Hz, 4000Hz, 5000Hz and untreated under a completely randomized design. The exposure is performed every day in 60 minutes in the coldframe chamber for 43 days. Evapotranspiration, plant height and number of leaves are parameters that can be used as indicators of plant growth. The calculation of reference evapotranspiration was done using the Penman Mointeith method. From this study, it was found that the reference evapotranspiration on in the research site had met the standard of cayenne pepper cultivation. The results showed that the actual optimal evapotranspiration of cayenne pepper occurred in plants that were exposed to a frequency of 5000Hz which was equal to a 4,95 mm/day. While the most optimal growth in plant height and number of leaves occurred in plants that were exposed to a frequency of 5000Hz with an average height growth of 3,02 cm and the number of leaves increasing by 1-2 strands within 3 days. Statistically, the exposure of manipulated cicada sound has a significant influence on the actual evapotranspiration and the growth of cayenne pepper.

Keywords
Frequency of manipulated cicada sound, cayenne pepper, growth, evapotranspiration

Topic
Other Agricultural and biosystems topic

Link: https://ifory.id/abstract/93NQJXA8fdnE

Corresponding Author
Patriasia Hesti Tri Nugraheni

Institutions
Faculty of Agricultural Technology, Universitas Gadjah Mada, Flora No. 1, Bulaksumur, Yogyakarta 55281

Abstract
Precision Farming (PF) has been developed in many countries. It is need an appropriate and integrated technology to achieve the goals, such as global positioning system (GPS) to mark the geographical coordinate, ArcGIS to map the spatial data, Variable-rate Application (VRA) to show the variability of soil properties on the field and Decision Support System (DSS) to establish the best management practices for the field operation. The objective of this research was to develop a decision support system for mapping VRA of precision fertilizing on soybean cultivation. The system generates a VRA map and shows the amount of required fertilizer for soybean according to the field and soil properties data. The DSS was developed using web application to facilitate the flexibility, and scalable access via internet. To execute the application, user requires to select the coordinates of the field and soil sample points and fertilizer dose data. The friendly user of DSS program was successfully produced with the VRA map showed the data of recommendation fertilizer as the decision support system. The outcome from this study was the application mapping VRA. Further steps are needed in order to apply this application to the farmers.

Keywords
Decision Support System; Variable-rate Application (VRA); Soil Nutrient Map; Variable-rate Application Map

Topic
Energy and agricultural machinery

Link: https://ifory.id/abstract/HQKNJ2GAuVZR

Corresponding Author
Burhanuddin Rasyid

Institutions
1Department of Soil Science, Faculty of Agriculture, Hasanuddin University, Makassar, South Sulawesi
2Department of Dry Land Agriculture Management, National Agriculture Polytechnic of Kupang, East Nusatenggara
E-mail: burrasyid[at]unhas.ac.id

Abstract
Soil-water interactions and its management is serious issue in water availability for plant cultivation especially in the water scarce area. The objective of this study is to determine water use efficiency of maize which is cultivated in vertisol soil with different water content and biochar application. The experiment was designed in four level water content of field capacity (FC) vis., 100%, 90%, 80%, 70%., and three treatments of soil amendment (control, biochar, and zeolith addition). Data was collected in terms of water content dynamics (water use efficiency, crop water consumption), and dry matter weight. Results found that biochar application had significant effect in all parameters evaluated compare to control and zeolith. In combination treatments, there is no significant effect of soil amendment and control with 70% and 80% FC treatments to plant dry weight. Various value was also observed in crop water consumption with significant effect in soil amendment on 100% and 70% FC, conversely there is no different effect in 80% and 90% FC. Water use efficiency was affected by soil amendment but it shown differences in treatment of water content level. All results of this study therefore concluded that soil amendment and water content management need to be combine in support plant growth on the area with water limiting factor.

Keywords
soil-water, soil amendment, water use efficiency, crop water consumption

Topic
Land and water resources engineering

Link: https://ifory.id/abstract/JjE6CBGekbZ7

Corresponding Author
Siti Nur Aisyah

Institutions
Indonesia Center For Agricultural Post Harvest Research and Development

Pakuan University, Bogor

Abstract
The fermentation technology for processing nata de coco can be used by using coconut water waste sources and the use of acetobacter xylinum bacteria. The purpose of this study is to analyze the physico-chemical quality of nata de coco produced by using a combination of sources of raw materials and their concentration on the quality of the nata de coco produced. The methodology for making the basic formula used 5 grams of nitrogen, ammonium sulfate and acetic acid in coconut water. The treatment used is in the form of using a variety of carbon sources in the form of granulated sugar, pineapple honey, tapioca and molasses with variations in concentrations of 3, 6 and 9%. The data obtained is then analyzed using IBM SPSS Statistics 23. Software. Based on the results of analysis, the results show that the different uses of source types and carbon concentrations significantly affect physical characteristics such as thickness, weight, residual water volume, color, hardness, frequency and value of TPT from nata de coco produced. The highest levels of crude fiber and cellulose were obtained from the treatment of 3% tapioca flour carbon sources of 0.68% and 0.78%. SEM observations of the treatment of 3% tapioca flour with a magnification of 10,000 times the actual size with cellulose tape sizes ranging from 120.8 nm to 155.5 nm with irregular shapes and uneven surface texture. The results of the FTIR spectrum of cellulose nata de coco treatment of 3% tapioca flour there was a group absorption peak at wave number 3392.17 cm-1, vibration was at wave number 1402.55 cm-1, 1052.86 cm-1, 1110.02 cm- 1 1629.47 cm-1.

Keywords
influence, type, concentration, characteristics, nata de coco

Topic
International Conference on Sustainable Agriculture

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

Corresponding Author
Dimas Sandy Dary Rahmadhanni

Institutions
Department of Agricultural and Biosystems Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia

Abstract
Maintaining freshness and functional quality of the fruit is a challenge in the food industry since consumers demand of fresh pineapple is high. Thus, it is important to know the effect of external factors on products during the respiration to controlling the quality and extends the shelf-life. The respiration rate (RR) was studied over a period of storage time by treating the full crown pineapple in the room storage of 7C, 15C and 25C. A closed system method was used to measure the respiration rate at 2, 4, 12, 24 hours intervals over 7,5-14,5 days of storage. Three temperature variations and three replications were carried out to observe the respiration rate. Respiration rate based on the O2 consumption at 7C is 2,05 ml.kg-1.h-1, at 15C is 6,45 ml.kg-1.h-1 and at 25C is 22,33 ml.kg-1.h-1, while based on CO2 produce at 7C is 5,90 ml.kg-1.h-1, at 15C is 20,83 ml.kg-1.h-1 and at 25C is 67,91 ml.kg-1.h-1. Furthermore, the modelling was conducted using Michaelis-Menten (MM) uncompetitive inhibition. The storage temperature of 7C resulted MM constant value Vmo is 4,28 and Vmc is 29,04 at the 15C Vmo is 59,18 and Vmc is 200 and at the 25C Vmo is 140 and Vmc is 805,10 with SSE ranged from 0,000378 to 0,0295. The Vmo-constant activation energy (Ea) is 132,42 kJ/mol and frequency factor (A) is 3E+25, while Vmc-constant Ea is 132,94 kJ/mol and A is 1,7E+26 with R2 ranged from 0,82 to 0,99. The result of Arrhenius analysis used to predict the respiration rate in storage temperature of 10C, 12C, 18C, 20C and 22C. The storage temperature recomendation with 30 days delivery time should at 12-18C.

Keywords
Arrhenius, Michaelis Menten, Respiration Rate, Pineapple

Topic
Postharvest and food engineering

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

Corresponding Author
Murtiningrum Murtiningrum

Institutions
a) Faculty of Agricultural Technology, Universitas Gadjah Mada
* tiningm[at]ugm.ac.id
b) National working Group on Indonesia Modernization of Irrigation
c) Ministry of Agriculture
d) Faculty of Civil and Environment Engineering, Institut Teknologi Bandung
d) National Development Planning Agency

Abstract
In the last decades before entering 21fts century, many countries of the world have been facing critical issues of less in food production, lack energy availability and weak water recourses management as well. Beside of these issues another phenomenon dealing with climate change also is coming up and treating peoples in some respects. In the developing country such as Indonesia environmental load in term of increasing population rate occur tremendously. More peoples mean more resources have to be provided. However, some recourse is scares and others are not available every time. Better water resources management even this aspect was considered as critical one, but it was could be used as a tool to solve the problems properly. Increasing water users in the river basin would also create competition among of them. Recently about 80 % of water use in the world goes to irrigation purposes and most of them are managed inefficient and less effective way. Changing of government policy and change of ecology may made irrigation water management getting worst. Irrigation management could not implement by using conventional method. A new approach to make irrigation management running better must be setting up. The Ministry of public works and Housing to represent Government of Republic of Indonesia launched irrigation modernization of Indonesia program in year of 2011. This paper aims to present concept and implementation progress of the Program.

Keywords
modernization, irrigation, Indonesia, concept, implementation

Topic
Land and water resources engineering

Link: https://ifory.id/abstract/ZfAtR7v9GHQp

Corresponding Author
Daniel Useng

Institutions
Dept. of Agric. Engineering, Hasanuddin University
Makassar
Indonesia, 90245

Abstract
The rice production estimation in Indonesia conducted by several government agencies, among others: Central Statistics Agency (BPS), Director General of Food Crop Production and Horticulture, Ministry of Agriculture, and the Logistics Affairs Agency (BULOG). The approach used to predict rice production from each of these institutions is different from one another. Because of the different approaches the information obtained varies, making it difficult for users of information to utilize existing data. The estimation are based on the plot sampling prior to the harvest. This technique are not only laborious but also time consuming and need large funding support. In order to overcome these limitations, we applied the oblique photographic analysis technique to cover large area to predict the potential yield. Oblique Photographic Image skews in the air. This photograph done by shooting the near-mature rice crops with unmanned aircraft carrying the carrying camera that has a slightly angled. This skewing aerial photography has the character of the aerial photograph that looks slightly tilted but covering larger area compared to the vertical shooting. The yield prediction conducted by image processing software applying Neural Network method of MLP (Multi-Layer Perceptron). The result shows the neural network classification technique on oblique image can determined the rice field productivity especially for low productivity plots with overall accuracy of 69.23 percent.

Keywords
oblique image, unmanned aerial vehicle (UAV), image processing

Topic
Biophysics engineering

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

Corresponding Author
Daniel Useng

Institutions
Dept. of Agric. Engineering, Hasanuddin Univ. Makassar - INDONESIA 90245

Abstract
Rice plant as staple food especially in tropical regions. One of the major problems encountered by Indonesian rice farmer is the pest and diseases infestation, causing loss of potential yield. Yield lost in Indonesia was reported annually shows more intense. The intensive pest and diseases attack on young rice plant forced farmers to invest more on plant protection measures. Farmers sometimes unaware of the symptoms of pest and diseases presence until severe lost occurred. This research aimed to analyze the pest and disease attack and dispersion on the rice field during the planting season. The method using spatial analysis to map and determine the spreading pattern of certain disease spread over the farmland. Four type of pest attack patterns analyzed i.e. rice bug, brown planthopper, rice leaf roller and stem borer. The result shows that the rice bug, brown planthopper and leaf roller have smaller spreading patterns whole the stem borer have wider spreading pattern.

Keywords
rice plant, pest infestation, spatial analysis

Topic
Other Agricultural and biosystems topic

Link: https://ifory.id/abstract/PNkRQjL289qx

Corresponding Author
Varentia Zahrah Novita

Institutions
a,b) Environmental Engineering, Faculty of Engineering, Universitas Indonesia, Depok, Indonesia
*varentiazahra[at]gmail.com

Abstract
Acid mine drainage (AMD) contains high concentration of various heavy metals and low pH levels, ranging between 2 and 4. The water samples used for this research are an artificial AMD, with varying concentration levels of copper (5 and 7 mg/l), and also an actual AMD. The pH level is designed to be 4, where the designed pH level illustrates the actual characteristics of an AMD. The data for this research (pH and copper levels) are taken for 14 days. This research shows that exposure of both the artificial AMD and actual AMD cause physiological effects to Pistia stratiotes, indicated by chlorosis of the plant starting from day 3 of the research. Furthermore, the result of this research illustrates that Pistia stratiotes is able to alter the artificial AMDs pH level from 4 to 7,3 in 14 days. This plant is also capable of reducing the copper content as much as 92,45% and 88,00% with initial concentrations of 5,3 mg/l and 7,5 mg/l respectively in 14 days, with peak removal at day 3. It can be concluded that Pistia stratiotes is able to neutralize pH level and decrease copper contents in artificial AMD.

Keywords
Acid mine drainage; Copper removal; Phytoremediation; Pistia stratiotes

Topic
Agricultural structures and environmental engineering

Link: https://ifory.id/abstract/TH8LjEdbMe9m

Corresponding Author
Dira Alifa

Institutions
Environmental Engineering, Faculty of Engineering, University of Indonesia, Jakarta, Indonesia

Abstract
Under present investigation, Eichornia crassipes (water hyacinth) has been tested in knowing the applicability of this macrophyte as phytoremediator of Acid Mine Drainage (AMD). Atomic Absorption Spectrophotometer (AAS) is utilized in analysing the accumulation of important heavy metal zinc (Zn) within plant tissues parallel with adaptive responses due to physiological and biochemical matters during exposure of actual AMD and artificial AMD having different concentrations (10, 20, and 30 mg/L of Zn) and extreme pH (3.0). There is slow-but-steady significant increase in pH along with no morphological symptoms in exposure of artificial AMD. Conversely, in 2-weeks exposure of actual AMD there is critical morphological symptoms due to its toxicity in exposure of multi-metals along with immediate increase in the first 3-days and slow decrease in 11-days after for pH value. The decreasing in Zn concentration for both actual and artificial AMD is occurred even in high level concentration. The final concentration of Zn didn not meet the quality standard, so it needs to be a serial treatment with each treatment has 1 week in retention time. Overall this methodology is applicable for the removal of Zn in AMD that has single-metal or various-metals in any amounts that is negligible or under its lethal dosage.

Keywords
AMD, Adaptive Response, Eichornia crassipes, Zinc Removal

Topic
Agricultural structures and environmental engineering

Link: https://ifory.id/abstract/FAyeJc2nDKYt

Corresponding Author
Jonni Firdaus

Institutions
Central Sulawesi Assessment Institute for Agricultural Technology, Indonesian Agency for Agricultural Research and Development
Jl. Lasoso, 62, Sigi Biromaru, Sigi, Sulawesi Tengah

Abstract
The duration of the VCO oil extraction process affects the oil quality. The centrifugation method produces high VCO quality but requires expensive in investment and operational costs. The acidification method with solar heat was produced VCO but it taken quite a long time (8-12 hours) with the success rate depending on the weather. This study aims to increase the success rate of acidification using solar heat method through the use of greenhouse effect type heaters and compare them with the standard of coconut oil quality requirements in SNI 01-2902-2001. The study was conducted in Malonas Village involving 15 women farmers. The VCO were analyzed at the BB Pascapanen Laboratory, Bogor. The acidification/ chemistry method of VCO was tested in greenhouse effect type heaters and without it. The incubation process is carried out by observing the temperature, yield and heating time. VCO was tested for the percentage content of free fatty acids (FFA), yield, visual and aroma test. The result was a decrease incubation time separation amoung water, blondo and oil, that occurred from 8 hours 30 minute (without the use of the tool) to 3 hours 45 minute (using tools). Oil yield increases by 0.9% from the previous method. VCO oil have FFA levels that are in accordance with SNI and APCC standards.

Keywords
virgin coconut oil, acidification, greenhouse effect heater, solar heater

Topic
Postharvest and food engineering

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

Corresponding Author
Nadya Andriyani Rahmadi

Institutions
1) Universitas Gadjah Mada
Bulaksumur Yogyakarta 55281
info[at]ugm.ac.id
2) Faculty of Technology Agricultural
Jl. Flora No. 1 Bulaksumur, Sleman, Yogyakarta 55281

Abstract
This research was aimed to measure actual evapotranspiration, to determine of water requirement and crop coefficient (Kc) of longan (Dimorcapus longan Lour.) was cultivated in Longan Nawungan orchard, Selopamioro Village, Imogiri Sub-district. Plot scale of water balance was applied to determine ETa, with input components were rainfall and irrigation, while output were ETa, water storage (&

Keywords
crop water requirements;water balance;reference evapotranpiration;crop coefficient

Topic
Land and water resources engineering

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

Corresponding Author
Murtiningrum Murtiningrum

Institutions
a) Faculty of Agricultural Technology, Universitas Gadjah Mada
*tiningm[at]ugm.ac.id

Abstract
One effort to achieve food self-sufficiency in Indonesia is by developing and rehabilitating irrigation infrastructures. The physical development will perform well when it is accompanied by the human resources with appropriate capacity to manage the irrigation system. The previous research stated that there were knowledge gaps between importance and understanding of some knowledges of irrigation operation. The objective of this research was to determine method of knowledge gap reduction using TOPSIS and ELECTRE methods. The alternatives offered were face-to-face training, sharing groups, internet learning, video module and book module. The criteria to decide among alternatives were available expert, duration, available equipment, and learning habit. The opinions about the alternatives based on the criteria were selected based on respondents response. The analysis using both TOPSIS and ELECTRE methods showed that provision of book module or printed materials the best option to reduce knowledge gaps of irrigation manager in Colo Irrigation System.

Keywords
Knowledge gaps, TOPSIS, ELECTRE, alternative, criteria

Topic
Land and water resources engineering

Link: https://ifory.id/abstract/UbMkf4vgQEZ3

Corresponding Author
Muhammad Burhanuddin Fauzi

Institutions
a) Faculty of Agricultural Technology, Universitas Gadjah Mada, Jl. Flora No. 1, Bulaksumur, Caturtunggal, Depok, Sleman, Yogyakarta 55281, Indonesia
*burhanuddin.fauzi[at]mail.ugm.ac.id

Abstract
Fish farmers in the Yogyakarta area mention problem main cultivation fish is expensive cost commercial feed, so that independent-feed will be chosen as solution. Independent-feed still causes problems such as low stability and feed buoyancy. To do enhancement quality independent-feed with giving edible coating. Solution edible coating made with basic waste skin cassava remember production cassava in Indonesia (2018) reached 21 million tons, so more than 4 million tons of skin cassava is waste. There is starch amounting to 44-59% of the skin cassava could used as solution edible coating. Method coating used that is spraying. Data taken covering stability, power buoyancy, and texture feed on treated water use equation mathematical and t-test at 5% level with SPSS26 software. The value of t arithmetic is 4.03 which has a value greater than t table with a value of 1.717 which results in higher stability in the feed treatment than the control feed. The Texture analysis value shows the treatment feed has a lower pressure compared to the control feed because of the effect of the plasticizer layer. both of these causes the pellets to last longer in water.

Keywords
cultivating, coating, fish, feed, cassava

Topic
Other Agricultural and biosystems topic

Link: https://ifory.id/abstract/xC6vFnyQUuTk

Corresponding Author
Mohamad Soleh Hidayat

Institutions
Universitas Gadjah Mada

Abstract
Increasing the quality and quantities of agricultural products can be optimized with an environmental monitoring system, to determine the plants condition and as a reference in caring for plants. Wireless Sensor Network (WSN) is widely used in field monitoring recently, because of its ease of use and being able to monitor in real-time. Indonesia is an agricultural country with more than 16,5 million of farming land, most of the farming land are located in the rural area. The problems that occurs when implementing IoT to environmental monitoring in rural area is the limited signal and energy. In this study, we study and research the use of LoRa as a Long Range Low Power data transmitter for environmental monitoring in agricultural systems in the rural areas. The location of this research was conducted in Bulaksumur Universitas Gadjah Mada. This research was focused on system design and performance test. There are four zones with variuous obstacles. The Zone D (LOS) is the best scenario to optimizing data transmission. This Zone can reach over 800 m distance with only 20% packet loss.

Keywords
LoRa, Environmental Monitoring System, Rural Area

Topic
Energy and agricultural machinery

Link: https://ifory.id/abstract/TGLJYn2PAyv6

Corresponding Author
RHUSHALSHAFIRA ROSLE

Institutions
a) Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia

b) Institute of Tropical Agriculture and Food Security (ITAFoS),
Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia
*Corresponding author: niknorasma[at]upm.edu.my

Abstract
Remote sensing is a tool to gather the information about an object or any phenomenon without direct contact or damaging the objects. This technology had numerous application and one of it is in agriculture. Unlike tradition agriculture practiced that difficult to execute and required a large number of man power, implementing this technology will increase the production yield of the crops and improved the agriculture sector in managing and controlling. Remote sensing were able to forecast the crop production, identified the crop type, assess the crop damage and monitoring its progress. Therefore, this research was conducted in order to monitor the early stage of growth of rice crop planted by the farmers in the paddy field using remote sensing. To do so, popular empirical vegetation index known as Normalized Difference Vegetation Index (NDVI) generated from unmanned aerial vehicle (UAV) was selected to monitor the changes of rice crop starting from the day it been planted until eleventh day of planted. Early stage of monitoring the crop growth using NDVI is a best approach to practice. Any damages that occur during this stage will affect the yield production and economy. Result from image analysis shown that NDVI were able to observe the rice crop growth and able to locate the damage part in the paddy plot. Fast action can be made by the farmers to counter attack the damage and treat the problematic points.

Keywords
Remote sensing; precision agriculture; NDVI; vegetation index; Unmanned Aerial Vehicle

Topic
Agricultural structures and environmental engineering

Link: https://ifory.id/abstract/CMV4L8bukmzN

Corresponding Author
Nofias Fajri

Institutions
(a) Magister of System Engineering, Faculty of Engineering, Gadjah Mada University

(b) Industrial Engineering, Faculty Of Engineering, Gadjah Mada University

(c)Department of Agro-Industrial Technology, Faculty of Agricultural Technology, Gadjah Mada University

Abstract
Food and beverages (Small Medium Enterprises) SMEs are complex industry. Many factors involve cooperation between operator, technolgy and method. Human and technology collaboration has opened new realm industry in real-world settings. in such applications, human and technology interaction plays a critical role on the overall system peformance. Digital technology is one of many technology adoptions in 4.0 era. Trust in technology is main factor that makes succesfully technology adoption. This study aims to explore individual trust factors affecting the use and adoption of digital technology in food and beverage SMEs. The constructs identified in this study are related to theories of propensity trust, technology trust and information technology trust. The study attempted to develop a model and validated it in SME digital technology adoption. The model used SEM that was undertaken using a sampel of 200 participants. the model showed the validity and the reability of the constructs which are positively correlated with individual trust for digital technology adoption in SMEs. General linier model analysis proporsed a model or trust factors that had significant releationships with adoption of digital technology in SMEs.

Keywords
Individual Trust, Propensity Trust, Technology Trust, Information Technology Trust, Human Factor

Topic
Other Agricultural and biosystems topic

Link: https://ifory.id/abstract/KcneEy3fFPhx

Corresponding Author
MUHAMMAD TRY HARTONO

Institutions
Universitas Gadjah Mada

Abstract
Pineapple is the fruit that ranks the fourth largest production in Indonesia. Pineapple fruit is a non-climacteric fruit that is easily damaged, so the effort to extend the shelf life of the fruit can be done by storing it in cold temperatures. This study aims to analyze the pineapple kinetics with crowns during storage with temperature variations. The research sample was in the form of pineapple Smooth Cayenne varieties stored at low temperatures (7 and 15C), and the control treatment was stored at room temperature (25C). Changes in the physical quality of pineapple during storage were observed with shell color parameters, weight loss, and texture. Observations were carried out at intervals ranging from 2-3 days to 16-20 days of storage depending on storage temperature. Fruit damage rates based on measured parameters were analyzed using the Arrhenius and kinetic model approaches. The results showed changes in low temperature storage are: shell color 0,00-10,67 %, weight loss 0,00-3,70 %, firmness 3,955-3,062 kg.cm-2. Control treatment: shell color 0,00-100 %, weight loss 0,00-13,89 %, firmness 3,898-1,982 kg.cm-2. Constant (k) kinetics at low temperature are: shell color 0,4921-5,6901 %.day-1, weight loss 0,1939-0,2683 %.day-1, firmness (-0,0679)-(-0,1013) kg.cm-2.day-1. Control treatment: shell color 7,7994 %.day-1, weight loss 0,7837 %.day-1, firmness -0,1276 kg.cm-2.day-1. The values of A and Ea (in J.mol-1.K-1) Arrhenius are: shell color 1,997x1019 and -1,0427x105, weight loss 2,554x109 and -5,454x104, firmness 2,213x103 and -2,411x104.

Keywords
Arrhenius, kinetics, quality, pineapple, storage

Topic
Postharvest and food engineering

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

Corresponding Author
Pahrudin HM

Institutions
* Faculty of Law, Universitas Jambi.
** Faculty of Social and Political Sciences, Universitas Jambi

Abstract
Law Number 6 of 2014 about Villages states that the purpose of village regulation is to create an independent village. As an effort to achieve this goal, village management in Indonesia is carried out using a self-governing community system that requires apparatus that has good capacity. On the other hand, the existence of village officials in Indonesia still does not have the capacity needed to organize the government to become an independent village. Therefore, it is necessary to do a legal political reconstruction to find a solution to the inequality of expectations of village regulation and the reality of the quality of village officials like this. Political law functions as a bridge to the goals to be achieved and is strongly influenced by the social reality of society. This research was conducted using a qualitative approach with the type of library research by reviewing data related to villages in Indonesia, especially village government. The results of this study revealed that only 5,606 (7.43%) were independent villages. This of course requires a solution through a series of solution policies so that the objectives of village regulation towards independent villages can be achieved so that the prosperous community can be achieved.

Keywords
Village, Independent, Political Law, Government.

Topic
Local Politics and Decentralization

Link: https://ifory.id/abstract/A9eHZm3YvTtf

Corresponding Author
Rio Yusri Maulana

Institutions
a. Government Science Program, Faculty of Social and Political Sciences, Universitas Jambi.
b. Government Science Program, Faculty of Social and Political Sciences, Universitas Jambi.
c. Government Science Program, Faculty of Social and Political Sciences, Universitas Jambi.
d. Political Science Program, Faculty of Social and Political Sciences, Universitas Jambi.
e. Government Science Program, Faculty of Social and Political Sciences, Universitas Jambi.
f. Government Science Program, Faculty of Social and Political Sciences, Universitas Jambi.

Abstract
The discourse on traditional leadership can be seen in the second decade post-reform in Indonesia, with the strengthening of regional autonomy the dominance of traditional power is even more powerful and widespread. The cultural capital used by traditional leadership is substantial. The Kerinci community, for example, does not only function as far as maintaining and caring for ancestral traditions, but can further influence the direction of government policy in presenting peoples welfare. Democratic mechanisms that provide equal rights for all citizens to aspire to become a means to legitimize the dominance of traditional power. Therefore, this article places traditional leadership as a variable that greatly determines the implementation of non-formal and formal government institutions. Indigenous peoples are decisive in initiating local government policies. They are involved in regional development planning, then develop policy issues within local communities, and can even make changes to policies in the formal government itself. So that the models and concepts in the local elite leadership are very much needed to look deeper into this study. This study uses a qualitative approach with techniques for collecting field observation data and interviews with indigenous communities and traditional leaders in Kerinci.

Keywords
Traditional Leadership, Indigenous Peoples, Welfare, Local Government.

Topic
Local Politics and Decentralization

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

Corresponding Author
Nur Solikin S.Pd.,M.MA

Institutions
1) Faculty of Animal Husbandry, Universitas Nusantara PGRI Kediri
2,3,4) Faculty of Animal Husbandry, Universitas Brawijaya Malang

Abstract
Developing the livestock sector in Kediri, East Java Province requires an investigation on the social capital of beef cattle farmers to observe the actual condition and the strategies. The research is aimed to describe the social capital that includes the kinship, behaviours, norms and interactions and to analyse the correlation between social capital and economic income of beef cattle farming in Kediri Regency. The study was conducted from January to June 2018, collecting data from a survey and questionnaire. A multistage sampling method was applied to collect 150 farmers in eight sub-districts in Kediri. Data were subject to descriptive analysis. The result showed that the social capital of beef cattle farmers in Kediri is at the medium level as observed from the farmers- ability to collaborate in achieving group objectives. The average annual income of beef cattle farmers in Kediri was IDR 2.700.000. The result showed a significant correlation (0,426) between the social capital and the income of beef cattle farmers in Kediri. It indicated that the higher the social capital, the higher the income. Some efforts to increase social capitals included a social gathering and farmers upskill through intensive training on technology mastery.

Keywords
Social Capital, Beef Cattle Farmer, Kediri Regency

Topic
Socio-economic aspects of animal farming

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

Corresponding Author
Pudjo Sugito

Institutions
University of Merdeka Malang

Abstract
This research intends to analyze the linkage of migratory culture and entrepreneurship through information acquisition. The research population are migrant Madura entrepreneurs in East Java, Indonesia, with a sampling technique using a proportional random sampling technique at three locations: Surabaya City, Malang City and Jember Regency. The number of respondent are 170 Madura migrant respondents. The consideration is that there are relatively many Madura migrants in those cities. This research was carried out by designing questionnaires first and then validity dan reability test of the research instrument. Further, the questionnaire was broadcasted to Madura migrant entreprenuers who were randomly selected. The primary data was analyzed by structural equation model with the Partial Least Square (PLS) data processing program. The research result demonstrate that migratory culture significantly effect entrepreneurship and information acquisition mediates the effect of migratory culture toward entrepreneurship. It means that information acquisition plays an important role to encourage entrepreneurship of madura migrants.

Keywords
Migratory Culture, Information Acquisition, Entrepreneurship

Topic
Strategic Management, Entrepreneurship and Contemporary Issues

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