Indonesia Conference Directory

Corresponding Author
Rizki Muliawan

Institutions
a,c,d) Politeknik Negeri Bandung, Jl. Gegerkalong Hilir, Ciwaruga, Kec. Parongpong, Kabupaten Bandung Barat, Jawa Barat 40559, Indonesia
*rizki.muliawan[at]polban.ac.id
b) Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia

Abstract
Propane R-290 as hydrocarbon refrigerant has more benefits from the aspect of thermophisical properties, but the only weakness from this refrigerant is flammable. The distribution prediction of R-290 leakage to an air-conditioned room was simulated using Numerical Simulation of CFD ANSYS FLUENT V.13. The distribution of R-290 with a leakage rate of 0,001kg/s and an airflow of 0,1m/s will run out after 600s, with 0,002kg/s will run out after 300s and with 0,005kg/s and 0,5m/s will run out after 120s. The mass flow rate can influence the refrigerant distribution of leakage effect flowrate. Air flow can increase the dispersion of refrigerant gas and decrease the level of refrigerant amount at any certain point in the room after the refrigerant charge was run out. This momentum effect was due to the impact of supply air initial velocity. The buoyancy effect was due to R-290 density is greater than the air makes the refrigerant flows downward, accumulated and stagnant. Make sure that the contactor relays and other electrical tools have the position of: x=0 m ≤ x ≤ 1 m on y= 0 m ≤ x ≤ 2.6 m and then y= 1 m, x= 0 m ≤ x ≤ 4 m.

Keywords
Refrigerant Distribution, Flammable, CFD Numerical Simulation, Leakage, Hydrocarbon

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/GwLjPg8tDNE6

Corresponding Author
ST KHAERATUL MUKARRAMAH

Institutions
1Jurusan Pendidikan Teknologi dan Kejuruan, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Bandung, Indonesia
2Jurusan Pendidikan Teknik Elektro, Universitas Pendidikan Indonesia,Bandung Indonesia
*Corresponding Author, e-mail: ade_gaffar[at]upi.edu, heramukarramah20[at]upi.edu

Abstract
This study aims to demonstrate a new design of low-cost and portable laboratory kit that is prospective for bending test. The kit is using hydraulic pressure tools with maximal capacity about 6 ton. Economic analysis and smaller dimension of this kit (700x100x750 mm) showed that this kit is a low-cost and adaptable to classroom. The test result obtained by calculating the maximum compressive force, moment of cross section inersia, fluxtural strength and elastic modulus of speciment. The result also compared with another test material from bending test machine with American standard testing and material and showed that there is not much different in the test result for both. Further development of this kit is potentially implemented as an experimental tool for student.

Keywords
Bending test, Hidrolik, low cost

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/LArf2aCzZt69

Corresponding Author
Anwar Sanusi

Institutions
1 Jurusan Pendidikan Teknologi dan Kejuruan, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Bandung, Indonesia
2 Jurusan Pendidikan Teknik Elektro, Universitas Pendidikan Indonesia,Bandung Indonesia

*Corresponding Author, e-mail: ade_gaffar[at]upi.edu

Abstract
The internet continues to interact with almost every aspect of life, teachers will have more choices to use the Internet in the learning process. This study aims to find out internet use by teachers in vocational high schools based on their age. The results of the study were obtained from the results of interviews with teachers. Data from interviews were processed using qualitative methods. The results of the study prove that teachers use the internet to support their learning process. The findings obtained in this study are that older teachers have conducted software development training, while young teachers have not attended training, interestingly young teachers are more skilled in internet usage than older teachers.

Keywords
use of the Internet, Learning

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/jmfP7MyJcWYT

Corresponding Author
Habibinur Habibinur

Institutions
1 Jurusan Pendidikan Teknologi dan Kejuruan, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Bandung, Indonesia
2 Jurusan Pendidikan Teknik Elektro, Universitas Pendidikan Indonesia, Bandung, Indonesia
* Corresponding Author
E-mail: habibinur[at]upi.edu, ade_gaffar[at]upi.edu

Abstract
The use of smartphones in the 21st century in the learning process has become a concern of researchers especially in the world of education. Given the many uses of smartphones in the learning process, researchers are trying to develop smartphone-based learning media to be applied to the educational environment. But the lack of knowledge on how to use a smartphone can influence students interest and motivation to learn positively. The application of smartphones in the learning process includes the use of smartphone-based Augmented Reality applications. This article discusses a literature review that focuses on the use of smartphone-based Augmented Reality in the educational environment in the last 5 years at all levels of education. The result of 25 articles that has been reviewed, the learning process using Smartphone-based Augmented Reality applications was effectively used to increase students interest and motivation to learn. This is a separate note for researchers to recommend smartphone-based Augmented Reality Applications even more applied to the world of education.

Keywords
Smartphone, Augmented Reality, Learning, Literature Review

Topic
Technical and Vocational Education

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

Corresponding Author
Elmanani Simamora

Institutions
a) Department of Mathematics of Faculty of Mathematics and Natural Sciences, State University of Medan, Jalan Willem Iskandar/Pasar V, Medan 20221, Indonesia
*elmanani_simamora[at]unimed.ac.id
b)Department of Mathematics of Faculty of Mathematics and Natural Sciences, State University of Medan, Jalan Willem Iskandar/Pasar V, Medan 20221, Indonesia

Abstract
In practice, the parameters in the kriging model are unknown, but they can be estimated based on the behavior of the observed data. Parameters in the kriging model can be estimated based on the consideration of Regression-Kriging models. Regression-Kriging models are Universal Kriging models with polynomials of degree zero (Ordinary Kriging), one (Universal Kriging with degree one), or two (Universal Kriging with degree two). A new method for estimating the parameters in the Kriging model with semiparametric bootstrapping is proposed in this paper. The semiparametric bootstrapping procedure works by combining the bootstrap method and Kriging

Keywords
Kriging; regression; Simulation; Deterministic ; Semiparametric; Bootstrapping

Topic
Applied Mathematics and statistics

Link: https://ifory.id/abstract/EuZAvp8KWjkd

Corresponding Author
Tisna Abdulah

Institutions
Universitas Pendidikan Indonesia

Abstract
The use of learning media in Building Construction Basics subject at SMKN 1 Sumedang were still not varied, it caused student learning outcomes to be not optimal. The researcher made alternative learning media that could encourage students interest in the learning process. This research was aimed to design, find out, and implement learning media in the Basic Competence of Brick Installation Procedures. Learning media designed was puzzle as educational game with problem solving work technique and memory reinforcement. The research and development method was employed in developing the learning media. A purposive sampling technique was conveyed in order to collect the data with the participants of this research were 31 tenth grade students in DPIB 3 class of SMKN 1 Sumedang. This research showed that learning media were suitable to use after being validated by media experts and material experts. The students were more enthusiastic and respond positively to the use of learning media with puzzle games because it could help them to learn independently. The student learning outcomes showed the improvement both before and after using this learning media. Thus the use of puzzle as a learning media were in the good and suitable category as an alternative media that could help the learning process and the students were able to use the puzzle well in the Basics of Building Construction subject at SMKN 1 Sumedang.

Keywords
Learning Media, Puzzle Games, Student Learning Outcomes

Topic
Research and Development in Engineering Education

Link: https://ifory.id/abstract/wVWQmzYMc9nh

Corresponding Author
RADEN RIFQI HAFIZHUDDIN AL WAFI

Institutions
1Jurusan Pendidikan Teknologi dan Kejuruan, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Bandung, Indonesia
2Jurusan Pendidikan Teknik Elektro, Universitas Pendidikan Indonesia, Bandung, Indonesia
*Corresponding Author, e-mail: radenalwafi[at]upi.edu

Abstract
Abstract. This study shows the background that occurs between industry and vocational schools. The purpose of this study is to uncover the problems that occur in bilateral relations between vocational and industrial secondary education institutions for work-based learning models that have existed before. Qualitative research with a descriptive approach was carried out in three state and industrial vocational high schools in Bandung. Semi-structured interviews, observation methods of data collection with teachers and related industry staff as subjects. The results found factors that inhibit learning do not run effectively because the industry in providing information about the latest technology used by the company is not distributed evenly so that the facilities available in each school are different, the character of student work is not in accordance with the mental needs of the industry , the lack of monitoring of the implementation of the Moment of Understanding that is overseen by a clear legal body / institution, the duration of time given is less effective in the industry because time constraints make students unable to apply the many theories obtained at school.

Keywords
Work-Based Learning, industry, Vocational education, Bilateral relation

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/MdKtcyF6eL39

Corresponding Author
Annis Kandriasari

Institutions
a)b)c)d)e) Prodi Pendidikan Tata Boga, Fakultas Teknik, Universitas Negeri Jakarta
*annis[at]unj.ac.id

Abstract
Personal hygiene awareness can be proven by making observations on food processing and serving activities, by assessing whether awareness is limited to receipt of material or can be applied. The application Personal Hygiene in food processing and service activities is required to be in accordance with personal hygiene standards such as washing hands before starting practicum, wearing proper headgear, not long nails, wearing a clean jascook, and others. To find this out, analysis of awareness of personal hygiene knowledge is carried out with its application in carrying out food processing and serving. This study aims to analyze personal hygiene awareness in food processing and service activities. This research is descriptive with a qualitative approach. The instrument used in study was observation sheet and personal hygiene knowledge instrument in the form of an objective test. Analysis of the results this study is seen descriptively based on observations made there are 53.3% of respondents who do not have the awareness in applying personal hygiene and are strengthened with qualitative approach with a value of greater than α (0.05) so that can be concluded that personal hygiene knowledge good does not affect application of personal hygiene awareness in food processing and service activities.

Keywords
Awareness Analysis; Hygiene Personal; Food Processing and Services

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/Rky6XNnE9MVd

Corresponding Author
Junaidi Saputra

Institutions
1 Jurusan Pendidikan Teknologi kejuruan, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Bandung
2 Jurusan Pendidikan Teknik Elektro, Universitas Pendidikan Indonesi, Bandung
* Corrensponding Author, email : ade_gaffar[at]upi.edu

Abstract
The purpose of this research was to describe the perceptions of automotive industrial managers about the competencies of internship student. The population of this research was the 25 automotive industrial that cooperate with one of the Vocational High School in Pekanbaru Riau. The Total Sampling Technique was used to determine the Population for this research, which makes all of the automotive industrial in Pekanbaru Riau was the sample. The respondents were 25 Automotive Industrial Managers. The data were collected through questionnaire. The Data Analysis Technique was Descriptive Quantitative Analysis Technique. The result of this research shown that there were half of the managers- have good even very good perception for the Internship students. In their perspectives, the internship students have the ability needed by the automotive industrial. Yet, there were few managers who have bad perspective for internship students. This research were meant to be input or suggestions for the school stakeholder to increase the students competencies that needed by the automotive industrial.

Keywords
Internship, Competencies, Students.

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/kUtaPyQAJ2eh

Corresponding Author
Roswina Dianawati

Institutions
a) Graduate School of Technological and Vocational Education, National Yunlin University of Science and Technology
Daxue Road 123 Sec. 3, Douliu, Yunlin, Taiwan 64002
*m10543014[at]gemail.yuntech.edu.tw
b) Department of Mechanical Engineering, State University of Malang
Semarang Road 5, Lowokwaru, Malang, Indonesia 65145

Abstract
Vocational high school students, particularly in engineering majors, are expected to have the prioritised skills to solve problems, think computationally, and use advanced technology. Computer science is a crucial course for vocational students which contains all Science, Technology, Engineering, and Mathematics (STEM) categories. However, some obstacles are discovered that vocational school students did not have adequate basic computational skills that is caused by obsolete learning system. Gamification is now increasingly being used as an important part of the learning system to involve and motivate students. This study is a developmental research which aims to develop an engaging computer game as a newfangled learning tool in computer science course to enhance students- intrinsic. The results of the feasibility assessment from experts indicate that the game categorised as good in 15 criteria; likewise, the students- responds show the game assessments- scoring as acceptable category. As a conclusion, this developed game is worthy to be played as a computer science learning tool and further improvement is expected.

Keywords
Gamification; Computer science; Vocational students

Topic
New Technologies in Education

Link: https://ifory.id/abstract/naXTADKEyW7F

Corresponding Author
NUR AHMAD BACHTIAR

Institutions
1 Department of Vocational and Technology Education, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Bandung, Indonesia
2 Department of Engineering Electricity Education, Universitas Pendidikan Indonesia,Bandung Indonesia
* Corresponding Author, e-mail: ade_gaffar[at]upi.edu

Abstract
This research was conducted to analyze the background differences in the scores of school final examinations in mathematics significantly between male and female students. Observation of final exam scores and interviews were conducted with students of class XII vocational high school in Majalengka, West Java, Indonesia, 2018/2019 academic year. The results of observations show that the female score is superior, seen from the average score of 40.9 compared to the average value of male 36.9 and is reinforced by the lowest value of male students 15.0 compared to female students 22.5 but for the highest value indicating the same value as 70.0. Interviews conducted showed that the factors influencing this difference were caused by the lack of interest of male students in subjects that needed mathematical logical thinking skills compared to subjects that required motor skills. Furthermore, this research is expected to be able to change peoples assumptions about the mathematical abilities of women and men. that not always women do not have the ability or are considered inferior in the field of mathematics, many factors can affect that ability. family background, environment, and interest in learning mathematics also affect the success of learning of male and female students.

Keywords
Gender, Mathematics Achievement

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/cLHvaBhdCQM9

Corresponding Author
Silvia Dewi Sagita Andik

Institutions
College of Vocational Studies, IPB University

Abstract
The main problem in Indonesia Education is the enhancement of unemployment rate mostly obtained from the vocational school. Thus, vocational education institution needed to develop Technical Education and Vocational Training (TVET) through increased collaboration with Industries and business. The aims of this research to describe the development of TVET programme in an educational institution, especially in the College of Vocational Studies IPB. In addition, this paper analyzes the strategies to increased cooperation with industries precisely. The method used in this research is qualitative research with SWOT analysis. The develop of TVET programme is carried out starting from strengthening collaboration with industries, developing curriculum-based industry needed, the developed infrastructure, and increased the human resources capabilities. Compliance with the industries is the essential key to link and match between human resource and industries need

Keywords
Technical Education, Vocational Education Training, Industries need

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/eDYgvjunN3Aw

Corresponding Author
Thia Ashipa

Institutions
Agroindustrial Engineering Education, Faculty of Technology & Vocational Education, Universitas Pendidikan Indonesia

Abstract
Learning models that stimulate high order thinking skills have been applied in the learning process of processing plantations and herbs but the results have not been optimal. In addition, the learning time in the class is very limited, while the material is sufficiently large so that it is difficult for teachers to guide students to improve their high-level thinking skills. One of the relevant models used based on these problems is the classroom flipped learning model. Research on the application of flipped classroom learning models by using website is needed in order to improve students high order thinking skills. This research was carried out by adapting the class action research method (CAR) by Kemmis and Mc Taggart (1998) in 3 cycles. The population and samples used were the studnet of class XI-2 APHP Vocational High School PPN Lembang which consisted of 19 people. Assessment of learning activities at home in the first cycle (83.63%) experienced an increase in the second cycle (85.38%), and in the third cycle (81.87%). The lowest N-Gain value is in the first cycle, which is 0.35 which is in the medium category. This shows that the classroom flipped learning model with website in the first cycle has a lower increase in learning outcomes compared to Cycle II and Cycle III. In the analyzing dimension (C4), the highest increase in students high order thinking ability occurs in the third cycle with N-Gain for the ability to analyze (C4) 0.50. But the increase is still included in the medium category. Likewise with the ability to evaluate (C5) and create (C6), the average increase is 0.33 and 0.38 respectively. In this study, flipped classroom is able to improve students high order thinking skills.

Keywords
flipped classroom, learning outcome, website

Topic
Engineering Education Research

Link: https://ifory.id/abstract/P3yqJnNhdcDK

Corresponding Author
Amalia Zahrin

Institutions
a) Department of Civil Engineering, University of Indonesia, Depok, Indonesia
*amalia.zachrin16[at]gmail.com

Abstract
Abstract. Building Maintenance is to maintain the reliability of buildings, infrastructure and facilities so that buildings are always worthy of function. The condition of maintenance buildings right now is generally still conventional and does not have a clear maintenance information system. As a result, the process of building maintenance tends to be slow, often overlooked, unstructured and can often result in insignificant additional costs. The purpose of this study is to improve the performance of the maintenance of green buildings in states-s buildings for architecture components. By developing information systems for maintenance, it is expected to improve the performance of maintenance in buildings. The case study examined was the State-s Building of Kementrian PU. The development method is based on Minister of Public Works Regulation No.24/2008 which are then integrated into the Information System with the WEB. The results of this study will be in the form of a web-shaped information system that is useful for State-s agencies and others in carrying out the maintenance work of government buildings, especially in the architecture component.

Keywords
Architecture Components, maintenance, ministerial regulations, state-s green building

Topic
Civil Engineering

Link: https://ifory.id/abstract/vRtACVxhnar3

Corresponding Author
Rasyid Ridho

Institutions
1Jurusan Pendidikan Teknologi dan Kejuruan, Sekolah Pascasarjana Universitas Pendidikan Indonesia, Bandung, Indonesia
2Jurusan Pendidikan Teknik Elektro, Universitas Pendidikan Indonesia, Bandung Indonesia
*Corresponding Author, e-mail : ade_gaffar[at]upi.edu

Abstract
Entrepreneurial activity is believed to be a tool to encourage economic growth and to solve other economic problems such as unemployment. Entrepreneurship has been widely applied in schools, especially in vocational schools that aim to produce graduates so they can work and be entrepreneurs. There are many learning models that exist in vocational schools at this time, but the learning model does not have an impact on students to have a soul or desire to become entrepreneurs. Therefore, we have conducted a literature review to explain an alternative learning model, which is a self-designed project learning model that is expected to trigger students to become entrepreneurs. A systematic mapping study is used as a basic method for conducting literature reviews. Various relevant journals, which are learning models that can enhance ones entrepreneurship from various circles, were selected by researchers as preliminary data for a literature review. The various learning models that currently exist do not have enough impact to foster a sense of entrepreneurship in students, whereas learning in SMK should every productive learning must make students master and can make students have a sense of entrepreneurship when learning has ended. In this study describes a self-designed project learning model that will be applied in the automotive field in light vehicle engine tune-up subjects. This alternative learning model has been used by other studies, the researcher applies this alternative learning model in the field of machining that produces an impact on students, ie students can increase or make it have the desire to become entrepreneurs.

Keywords
Entrepreneurship, Self Designed Project Learning Model, Automotive.

Topic
Technical and Vocational Education

Link: https://ifory.id/abstract/3nXEb4LfvkpT

Corresponding Author
Irma Indriani

Institutions
(a) Department of Civil Engineering, University of Indonesia, Depok, Indonesia
*irma.indriani88[at]gmail.com
(b) Department of Civil Engineering, University of Indonesia, Depok, Indonesia
*yusuflatief73[at]gmail.com
(c) Department of Civil Engineering, University of Indonesia, Depok, Indonesia
*rossyarmyn[at]gmail.com

Abstract
State-s green building maintenance is a series of structured, complicated and complex work. Refers to Minister of Public Works Regulation No. 24/2008 in Republic of Indonesia, scope of maintenance work consists of architectural, structural, mechanical, electrical, landscape and house keeping components. Maintenance of building components can support the achievement of building reliability requirements, which are safety, comfort, health and convenience. If this maintenance work is not done properly, it will cause problems and damages, such as broken and untidy power lines, electrical short circuit, to building fires. The objective of this study is to identify electrical component damages and its causes, as well as what actions are needed to overcome the problems on electrical components so that no harmful impacts occur to the states green buildings and the surrounding environment. This paper will focus on information system development for electrical component maintenance work in states green building. The research methods used are literature study, data analysis and case studies of information systems development. The result of this study is a web-based information system for the maintenance work of electrical components of the states green building. This research is expected to improve the performance of maintenance work to achieve the reliability requirements of buildings, as well as reduce the problems that often occur in state-s green buildings. This research can also be an input or suggestion for the government or institutions that own green buildings in developing information systems and guidelines for the maintenance work of the states green buildings.

Keywords
Electrical, maintenance, ministerial regulations, state-s green building

Topic
Civil Engineering

Link: https://ifory.id/abstract/AQhmxWpayF7M

Corresponding Author
HIZKIA HENDRI KADARWANTO

Institutions
Department of Civil Engineering, University of Indonesia, Depok, Indonesia

Abstract
The purpose of building maintenance is to make the function, structure, and aesthetics of the building maintained in accordance with the initial conditions. The case study was the Ministry of Public Works and Housing Building. The purpose of this study is to improve maintenance performance landscape and housekeeping components of state-s green building. The problem raised in this study is that the landscape and housekeeping components are damaged so that they do not reach the standard of landscape and housekeeping performance and cannot be used. This has an impact on 4 building interior requirements not being achieved (comfort, safety, health and convenience) and also maintenance operational costs. The problem is caused by the ineffective system of maintaining landscape and housekeeping. The research methods used are surveys, literature reviews, and case studies. The expected result of this study is to prove that the maintenance work of green buildings using Minister of Public Works Regulation No. 24/2008-based website can improve maintenance performance landscape and housekeeping components of state-s green building.

Keywords
Housekeeping; Landscape; maintenance; ministerial regulations; state-s green building.

Topic
Civil Engineering

Link: https://ifory.id/abstract/d2cwEy4WCDAx

Corresponding Author
Paula Santi Rudati

Institutions
Politeknik Negeri Bandung

Abstract
Low-cost sensor is now widely used in various application ranging from the environment to daily live application. On the other hand, the low-cost sensor signal is dealing with noises due to external disturbances, quality of sensor material, or its electronic circuit. The raw data provided by the low-cost sensor is also still in digital n-bit data, the conversion to the physical meaning is thus needed. In this paper, the low-cost sensor node as part of Wireless Sensor Network (WSN) for CO measurement based on electrochemical sensor module has been investigated. Although the measurement signal consists of noise, it could be attenuated by applying a digital IIR filter. By applying the Response Surface Method (RSM), the 10-bit data of sensor has been calibrated to the commercially CO detector and resulted in the th-square transfer function equation. The sensor node measurement performance has a strong correlation (R2=0.98) with the performance of the sensor module in the wireless sensor node system. The data has been transmitted well to a gateway with needed settling time about 5 minutes for getting stable measurement condition. The results can be used while dealing with a low-cost sensor in various application.

Keywords
Low-cost sensor;Carbone Monoxide Sensor; Wireless Sensor Network; IIR Filter; Response Surface Method

Topic
Electrical Engineering

Link: https://ifory.id/abstract/jtBfeMFX6r38

Corresponding Author
Andi Nur Insani

Institutions
a) Post Graduate Student, Faculty of Animal Science, Hasanuddin University, Makassar, Indonesia (90245)
*insaniandinur[at]gmail.com
b) Animal Nutrition Department, Faculty of Animal Science, Hasanuddin University, Makassar, Indonesia (90245)

Abstract
The study aims to identify the growth characteristics of corn crop under mixed crop planting system with Arachis pintoi. The study was carried out according to completely randomized design consisting of 4 treatments and 3 replications for each treatment. The treatments were five different mixed crop planting model, namely P0 = Corn crop 100%; P1 = Corn crop 80% + A. pintoi 20%; P2 = Corn crop 50% + A. pintoi 50%; P3 = Corn crop 20% + A. pintoi 80%. The parameters observed in this study were plant height, leaf area, and number of chlorophyll of corn crop. The results of the study indicated that the average plant height of corn crop for each treatment was P0 = 142.72 cm, P1 = 143.00 cm, P2 = 152.20 cm, P3 = 123.00 cm. The average leaf area for each treatment was P0 = 819.25 cm2, P1= 871.48 cm2, P2 = 868.44 cm2, P3 = 793.22 cm2, and the average number of chlorophyll for each treatment was P0 = 39.84 unit, P1 = 41.84 unit, P2 = 41.30 unit, and P3 = 39.63 unit, respectively. Statistical analysis showed that the treatments did not significantly affect (P>0.05) all the parameters. It can be concluded that using A. pintoi in the mixed crop planting system with corn crop had no significant benefits in terms of growth characteristics of the corn crop

Keywords
Arachis pintoi, chlorophyll, corn crop, mixed crop planting, plant height

Topic
Animal Nutrition and feed technology

Link: https://ifory.id/abstract/hcmxDj6YvWQ4

Corresponding Author
Vidyahwati Tenrisanna

Institutions
Faculty of Animal Science, Hasanuddin University, Makassar, Indonesia
Email: vidyawaty[at]unhas.ac.id

Abstract
The aim of this article is to discuss trends and forecast meat production and consumption to 2027 in Indonesia by using different statistical forecasting models. Forecasting of meat production and consumption is important to be carried out so that food security development can be planned strategically in the future. Meat production and consumption are observed in the period from 1990 to 2017. The types of meat analyze include beef, poultry, goat and pork. Based on the seasonality and trend data, the forecasting methods used are Double Exponential Smoothing and Holt-Winters Seasonal Smoothing. All data is analyzed using STATA software. The accuracy of forecasting is examined based on the root mean squared error. Accordingly, the Double Exponential Smoothing method is more accurate than the Holt-Winters Seasonal Smoothing in predicting meat production and consumption for 2027 in Indonesia. Overall, meat production and consumption are projected to increase by 4,449,286 tonnes and 5,061,993 tonnes respectively. Hence, meat consumption is higher than meat production. Therefore, livestock technology innovation should be carried out thoroughly in the fields of breeding, processing/production, marketing and increasing the capacity of human resources both farmers and extension workers in order to produce livestock products efficiently and effectively.

Keywords
Consumption; forecasting; meat; production; trend

Topic
Socio-economic of animal science

Link: https://ifory.id/abstract/zyBL7KH9TJha

Corresponding Author
Muhammad Hatta

Institutions
Hasanuddin University

Abstract
This study aims to examine the characteristics of non-carcasses, which are of economic value, and non-economically in intensive fattened male and female goats. The study was conducted at the Laboratory of Beef Cattle and Laboratory of Animal Nutrition and Food, Hasanuddin University Makassar. The material used in this study were 16 Kacang goat, 8 males and 8 females under 1-year-old (Io). The tools used in this study were machetes, shovels, buckets, basins, surgeon, scales, plastic bags, scalpels, and writing instruments. The ingredients used are forage, bran, jag n g, coconut meal, fish meal, minerals, salt, and molasses. The method used is the intensive maintenance stage, given a feed of 3% (based on the dry matter) of body weight for 3 months. The second stage is slaughtering and carving. This stage the cattle are weighed first then slaughtered. After that, the carcass is carried out and weighed all the non-carcass parts (offal). Data were analyzed using the t-test . and descriptive. Data processing using SPSS version 16 computer package program. The results of studies on pea goats showed that the percentage of the total non-carcass weight of male goats was relatively the same compared to combined.g Female beans. The non-carcass weight of male economic value is relatively higher than that of females.

Keywords
Keywords: Kacang Goat, gender, intensive, fattening, and non-carcass.

Topic
Animal production Technology

Link: https://ifory.id/abstract/2f7xrchL4KeZ

Corresponding Author
Muhammad Hatta

Institutions
Hasanuddin University

Abstract
Many factors affect the quality of milk production and dairy cattle, such as the nations fire, cowage, type of feed, months of lactation, time milking and others. The purpose of this study was to determine the differences in milk production and milk quality in the morning and evening milking of dairy cows given corn cobs fermented. The study was conducted for one month using 8 cows that were lactating, divided into two groups each consisting of 4 cows given 2 % corn cobs and 4 cows not given corn cobs. Data analysis is displayed in Grafik form, the average and standard deviations and analyzed descriptively. The results showed milk production in the morning milking treatment P1 31.03% higher than in the evening milking and P2 milking morning treatment 20.83% higher than afternoon milking or the second average morning milking treatment 25.97 % higher than afternoon milking. The group of cattle (P1) who were not given corn cobs fermented milking milk production in the morning average 8.54 ± 2.78 L / head / day higher than the afternoon milking with average milk production 5.89 ± 1.89 L / head / day , while in the cattle group (P 2) which gets fermented corn cobs in milk production milking morning 8.40 ± 1.68 L / head / day over than with the afternoon milking with an average milk production of 6, 65 ± 1.59 L /head/day. The quality of milk at p American morning seen from the protein content (3.26%) and fat (3.37%) lower than at milking afternoon with a protein content of 4.03% and 3.79% fat. In conclusion, milking in the morning produces higher milk than in the afternoon milking, whereas milk quality is higher in milk in the afternoon.

Keywords
Keywords: milking time, milk production, milk quality

Topic
Animal production Technology

Link: https://ifory.id/abstract/cVh79bAmFTty

Corresponding Author
Azmi Mangalisu

Institutions
a)Sekolah Tinggi Ilmu Pertanian Muhammadiyah Sinjai, Jl. Teuku Umar No. 8 Kelurahan Biringere, Kec. Sinjai Utara Kab. Sinjai, Sulawesi Selatan, Indonesia
*azmimangalisu[at]gmail.com
b) Fakultas Peternakan Universitas Hasanuddin, Jl. Perintis Kemerdekaan Km. 10 Tamalanrea, Makassar, Sulawesi Selatan, Indonesia

Abstract
Eggs contain antioxidants that are very beneficial to the body, but the antioxidants found on eggs consumption was still low. Increased antioxidants can be done with the utilization of fermentation technology with Lactobacillus plantarum bacteria. This research used a Complete Randomized Design (CRD) with factorial pattern, each treatment of temperature and time incubation, 243 fresh chicken eggs obtained from the same chicken farm, Lactobacillus plantarum FNCC 0027 and treatment was repeated 3 times. Parameters measured in the research were bacterial count (Log10 CFU / ml), dissolved protein (%), antioxidant activity (%) and antioxidant concentration (ml GEA / 100ml). The research results indicated that increase in the number of bacteria, dissolved proteins and antioxidant activity but decrease of the concentration antioxidants with increasing temperature and time incubation. Antioxidant activity on eggs chicken fermented of optimum at 370C incubated temperature for 96 hours of incubated time.

Keywords
eggs; fermentation; Lactobacillus plantarum; incubation; antioxidants.

Topic
Animal production Technology

Link: https://ifory.id/abstract/8BEtzf6kATGd

Corresponding Author
Fuji Astuty Auza

Institutions
1Postgraduate Student Hasanuddin University, Makassar
2 Department of Animal Science Hasanuddin University, Makassar

Abstract
In addition to its high content in protein and lipid, Black soldier fly (BSF) (Hermetia illucens. L) has antimicrobial peptides (AMP) that could inhibit the growth pathogenic microbes. Therefore BSF extract could be very potential in substituting the use of antibiotics in animal production system. This research was conducted to determine the antibacterial activity of BSF extract in vitro on the growth of Salmonella typhimurium, E. coli and Pseudomonas aureginosa. The experiment was carried out according to the Completely Randomized Design (CRD) consisting of six treatments and three replications for each treatment. The treatments were different concentration levels of BSF extract, i.e. 75, 125, 175, 225, 275 and 325 mg.ml-1. Chloramphenicol with concentration of 30 µg.discs paper-1 was used as a positive control and dimethyl sulfoxide (DMSO) as a negative control. BSF extract was made using maceration extraction method. The antibacterial activity of BSF extract was determined by measuring the diameter of inhibitory zone (mm) formed around the discs paper following the 24 h of the incubation period. The results of this study indicated that the antibacterial activity of BSF extract increased (P<0.05) in line with the increase level of BSF extract concentration. The average diameter of the inhibition zone for Salmonella typhimurium, E. coli and Pseudomonas aureginosa was 11.77 ± 0.03 mm, 11.15 ± 0.05 mm, and 11.15 ± 0.23 mm respectively, which was categorized as strong inhibition zone, even though was still lower compared to a very strong inhibiton zone of chloramphenikol, which was 14.74 ± 0.38 - 27.61 ± 0.35. In conclusion, the concentration of BSF extract of 325 mg.ml-1 is an effective concentration to inhibit the growth of the bacteria Salmonella typhimurium, E. coli and Pseudomonas aureginosa.

Keywords
BSF, antibacterial, Salmonella typhimurium, E. coli, Pseudomonas aureginosa

Topic
Animal Nutrition and feed technology

Link: https://ifory.id/abstract/WfnTcFte4g8j

Corresponding Author
Rochmat Aldy Purnomo

Institutions
Universitas Muhammadiyah Ponorogo

Abstract
This article examines the integration between Islam and culture in Reyog Ponorogo Art. The noble values ​​contained in Reyog Ponorogo art, which has been latent, it is very possible to be studied more deeply through the symbols contained in the equipment and the variety of the dance, to be actualized in the form of explicit meanings as the basis for the transformation of meaning in the community. In certain contexts, the meaning and truth of a teaching often do not appear explicitly, so that it requires cultural action to uncover it, one of which is through cultural symbols. In Bergers theory, it is explained that a symbol always has cultural significance and resonance. It has the ability to influence and also has a deep meaning.

Keywords
The Integration, Religion And Culture , Meaning, Reyog Ponorogo

Topic
Religious Studies

Link: https://ifory.id/abstract/W3atpqrYkMB2

Corresponding Author
Weny Nailul Hidayati

Institutions
1 Magister Biotechnology, University of Jember, Jln. Kalimantan 37, Jember 68121, Indonesia
2Laboratory of Molecular Biology and Biotechnology, Center for Development of Advanced Sciences and Technology (CDAST), University of Jember, Jln. Kalimantan 37, Jember 68121, Indonesia
3Department of Biology, Faculty of Mathematics and Natural Sciences, Jember University,
Jln. Kalimantan 37, Jember 68121, Indonesia

Abstract
Background: SCMV (Sugarcane Mosaic Virus) is a disease that cause reduction in growth and productivity of sugarcane. Infection of SCMV show yellowish spots symptomatic sugarcane leaves that indicates a decrease in the concentration of chlorophyll. Infection by the virus causes chloroplast damage, decreased photosynthesis and a sugar productivity loss of approximately 20–50% [1, 2]. Aims : to compare resistences of transgenic sugarcane derived from PDR and RNAi method against artificial infection of SCMV Materials and Methods: the experiment was conducted by cultivation of PDR and RNAi-transgenic sugarcane in green house for 3 weeks. Artificial inoculation of SCMV was performed on the leaves of 3 weeks transgenic sugarcane. The resistences of transgenic sugarcane against SCMV infection were observed by the presence of yellowish spot and by analysis of RT-PCR and western blot. Results: One of the efforts to overcome the SCMV infection is the development of resistance against SCMV through genetic transformation. The transgenic sugarcane resistant to SCMV was successfully developed by Pathogen Derived Resistence (PDR) and RNA interference (RNAi) approaches using coat protein mediated resistances. Both of these techniques have the ability to suppress virus infection, but there is no study on their effectiveness. In this study, the transgenic sugarcane were grown and treated with SCMV inoculation test to determine and compare the resistances. The symptomatic observation and molecular analysis such as PCR, Western blot and RT-PCR were conducted to determine the effectiveness of the transgenic sugarcane. The PCR analysis confirmed that the transgenic sugarcane were genetically stable inserted by the targeted coat protein DNA at ± 700bp. The level of expression of coat protein genes was analyzed using Western blot and showed the results of protein size ± 30 Kda. Conclusions:Artificial inoculation using SCMV virus sap fluid showed that non-transgenic sugarcane have yellowish spots symptoms on the leaves, while transgenic sugarcane did not show the symptoms. This results showed that transgenic sugarcane developed by PDR and RNAi methods inhibit the replication of the SCMV virus when it is infected. References 1. Putra LK, Kristini A, Achadian EM, Damayanti TA (2014) Sugarcane streak mosaic virus in Indonesia: distribution, characterisation, yield losses and management approaches. Sugar Tech 16:392–399. https ://doi.org/10.1007/s1235 5-013-0279-9 2. Akbar S, Tahir M, Wang M-B, Liu Q (2017) Expression analysis of hairpin RNA carrying sugarcane mosaic virus (SCMV) derived sequences and transgenic resistance development in a model rice plant. BioMed Res Int. https://doi.org/10.1155/2017/16461 40

Keywords
PDR, RNAi, Sugarcane Mosaic Virus, resistances, artificial inoculation.

Topic
Environmentally Sustainable Agriculture

Link: https://ifory.id/abstract/bThe2ruAR39j

Corresponding Author
choirul ainiyati

Institutions
1 Faculty of Agriculture, Brawijaya University, Jalan Veteran, Malang 65145, Indonesia
1Laboratory of Molecular Biology and Biotechnology, Center for Development of Advanced Sciences and Technology (CDAST), University of Jember, Jln. Kalimantan 37, Jember 68121, Indonesia, 2 Faculty of Agriculture, Brawijaya University, Jalan Veteran, Malang 65145, Indonesia

Abstract
Background: SCMV (sugarcane mosaic virus) is one of the important pathogens in sugarcane, it-s can reduce sugar production around 30-50% (Dewanti et al., 2015). Genetic engineering is one way to develop virus-resistant plants, and the SCMV-resistant sugarcane has been obtained using PDR (Pathogen Derived Resistance) techniques through genetic transformation (Apriasti et al., 2018). It has been proven that the transgenic sugarcane shows resistance to SCMV infection, but growth performance and sugar production has never been characterized. This study aims to characterize the morphological and sugar production of transgenic sugarcane and comparing to non-transgenic sugarcane. Aims : To characterize of growth performance and sugar content of transgenic sugarcane resistance against mosaic virus. Materials and Methods: This study uses bululawang as a non-transgenic sugarcane, transgenic sugarcane (SCMV-resistant sugarcane by overexpression of the gene encoding the coat protein (CP) of SCMV), and Variety of PS.864 and Ps.881 (sugarcane infected by ScMV as a source of disease). The Sugarcane plants were grown for nine months, naturally-infection of mosaic virus by grown of infected plants between transgenic plant plot. The sugarcane leaves at the age of 3 months were collected for analysis of resistance to mosaic virus using RT-PCR and Western Blot. Morphological traits of transgenic sugarcane were observed for three time at the age three, six, and nine months after planting, whereas brix on stem was measure only at the age nine months after planting Results: The morphological traits include the number of plants, plant height, stem diameter and length of internodes did not show significant difference between sugarcane transgenic compared by Non-transgenic. However, the brix in transgenic sugarcane exhibited enhance compared to non-transgenic sugarcane. Conclusion: The SCMV-resistant sugarcane have not difference of the morphological traits compared to non transgenic sugarcane, whereas the brix on stem enhanced in transgenic sugarcane. References 1. Apriasti R., Widyaningrum, S., Hidayati, W.N., Sawitri, W.D., Darsono, N., Hase, T., Sugiharto, B. 2018. Full Sequence of TheCoatProtein Gene isRequiredforTheInduction of Pathogen-DerivedResistanceAgainstSugarcaneMosaic Virus in TransgenicSugarcane, Molecular BiologyReport. Vol 45:2749-2758. 2. Dewanti, P., Widuri, L.I., Ainiyati,C., Okviandari, P., Maisaro, Sugiharto, B. 2016. Elimination of SCMV (SugarcaneMozaik Virus) and Rapid Propagation of Virus-free Sugarcane (SaccharumofficinarumL) UsingSomaticEmbryogenesis, ProcediaChemistry, Vol 18: 96-102

Keywords
PDR (Pathogen Derived Resistance), Sugarcane Mosaic Virus, SCMV-resistant sugarcane.

Topic
Environmentally Sustainable Agriculture

Link: https://ifory.id/abstract/cx3j26KpFMH4

Corresponding Author
salafudin salafudin

Institutions
Chemical Engineering Department, Institut Teknologi Nasional Bandung, Indonesia.

Abstract
Distilation is still mayor unit operation used to produce bio-ethanol. Energy intensive used in distilation make high production cost of fuel grade bio-ethanol. In low concentration solution, they are much amount of free water which do not have interaction with ethanol. The condition make study homogeneity ethanol solution under high G-force is needed in order to know probability using centrifuge as pretreatment to increase concentration of ethanol solution. The study was done in laboratorium scale with batch centrifuge, and binary water-ethanol solution. The ethanol concentration was varied from 5% mol to 20% mol. The Centrifuge was run from 1918 to 2655 G-force with duration 3 to 30 minute. The result show that the homoginity of ethanol solution under high G-force could not be mantained. Along with increase radius the concentration of ethanol was decrease. Higher G-force, longer centrifugation time, lower concentration gave more effect of gradient concentration. Based on the result, centrifuge could be one of promising methode to increase ethanol concretration specially for low concentration ethanol. Background: Bioethanol is one of renewable energy with produced from fermentation process. Bioethanol concentration from fermentation process is around 5-10%, and Fuel grade bioethanol has concentration of at least 99,5 %. Distillation coulomb is still dominated unit operation used to increase bioethanol concentration from 5-10% until azeotrope point. Distillation coulomb is one of unit operation whose high operation cost. The Alternative unit operation which can replace of reduce the operation cost of distillation is very needed in order to make bioethanol has competitiveness compare with conventional gasoline. Aims: The aims of this study is to know the homogeneity of ethanol solution under high G-force and to know opportunity to used centrifugal force to separate ethanol from water. Materials and Methods: - Material used in this research is technical bioethanol solution and aquadest. - Batch laboratorial centrifuge was used. Bioethanol solution was put in centrifuge then turn on centrifuge at certain time and speed (rpm). Results and Discussion: Centrifuge was turn of and solution sample from bottom, middle and top of viral tube was taken and analysed the concentration. The homogeneity of low concentration of bioethanol solution under high G-force was study by comparation the concentration origin bioethanol solution and concentration bioethanol solution at bottom, middle and top viral tube witch has been under gone high G force from centrifuge. Conclusion: The result show that the homoginity of ethanol solution under high G-force could not be mantained. Along with increase radius the concentration of ethanol was decrease. Higher G-force, longer centrifugation time, lower concentration gave more effect of gradient concentration.

Keywords
low Concentration, Bio-ethanol Solution, homoginity, high G-force, Upgrading

Topic
Bioenergy

Link: https://ifory.id/abstract/NZgmAP4ehwfK

Corresponding Author
ABDUL AZIS

Institutions
Universitas Negeri Makassar

Abstract
This study aims to analyze the application of learning community in learning complex procedural text writing skills. The sampling technique is purposive sampling technique (determining the sample using research in accordance with the objectives and characteristics of the study). The instruments used were observation sheets, tests and lesson plans. The technique used to collect data is a test and observation technique. Data obtained in two ways were analyzed by descriptive statistics and inferential statistics. The results showed that the learning community method was effectively applied in the learning of students complex procedure text writing skills.

Keywords
Learning community method, complex procedure text

Topic
Education

Link: https://ifory.id/abstract/maMD4pgEB7dK

Corresponding Author
NURUL HAENIAH

Institutions
Universitas Sembilan Belas November Kolaka

Abstract
Contrastive analysis is the science of language that is used to compare the two languages or more to obtain the differences or similarities. Indonesian Language (BI) and Sasak language (BS) have different characteristics and structures according to the rules of each language. To determine the structure of the two languages can be demonstrated by comparing both languages. In this study, the researchers limited the problem comparing BI and BS based on personal pronoun. The purpose of this study is, to describe differences in BI and BS based on persona. The approach used in this study include theoretical and methodological approaches. Theoretically, this study uses a synchronous approach contrastive, while methodologically this study using a comparative descriptive approach. The data source of this research is the sentence BI and BS acquired from textbooks, mass media, and the conversation in the BI and BS, data collection method in this research is to use techniques refer, engineering and technical note introspection. Analysis of the data used to compare the BI and BS based persona is descriptive contrastive. The results of this study indicate persona in the form of Pronouns BS meno-mene dialect, has a free form, phrases and bound form.

Keywords
Contrastive Analysis, personal pronoun, BS (Sasak Languange)

Topic
Language

Link: https://ifory.id/abstract/XCu2AwJM3nrQ