Indonesia Conference Directory

Corresponding Author
Agus Edi Syahputra Siahaan Siahaan

Institutions
Pendidikan Olahraga
Program Pasca Sarjana
Universitas Negeri Medan

Abstract
This study aims to determine the potential of students in sports through talent scouting. This research is a quantitative descriptive study using survey methods and data collection techniques using test and measurement techniques. The population and sample of this study involved eighth grade students at SMP Negeri 1 Silou Kahean, SMP Negeri 2 Silou Kahean and SMP Orasi Indo Silou Kahean who were aged between 12-14 years in Kabupaten Simalungun. The data analysis techniques in the study by following the norm formula that has been prepared and validated by the Ministry of Youth and Sports namely Guiding and Sports Talent Development. The results of talent scouting for junior high school students in Desa Silou Kahean showed that there were no students who had high talent in sports. This is because the work of these students after returning from school is to help their parents farm so that they do not play activities according to the needs and development of children aged 12-14 years.

Keywords
Telent Scouting, Sport, Junior High School

Topic
Vocational Education and Educational Technology

Link: https://ifory.id/abstract/cWXGkUDg4mKP

Corresponding Author
Risma Martalena Tarigan

Institutions
(a) Postgraduate Program, State University of Medan, Medan, Indonesia
*rismatarigan11[at]gmail.com
(b) Department of Indonesian Language and Literature Education, State University of Medan, Medan, Indonesia

Abstract
This research aims to (1) Analyze the value of character education in Sinar novel by Aguk Irawan Mizan, (2) Analyze internal conflict of the main figure in Sinar novel by Aguk Irawan Mizan, and (3) Know its usefulness as literary reading in senior high school. The type of this research is qualitative with descriptive method and researchers as instruments. The value of character education was analyzed with the provisions of National Education Ministry that is limited to religious values, hard work values, independence values, responsibility values, and social care values. Internal conflict was analyzed by Sigmund Freuds theory. The technique of collecting data using scrutinize and record, then analyzed using the Miles and Huberman models. Its usefulness as reading material is known through interviews with three Indonesian language teachers and questionnaires for 32 students in 4 Binjai Senior High School. Based on the research, be found 33 values of character education were obtained which included five religion values, four values of hard work, twelve values of independence, eight values of responsibility and four values of social care. Also besides, there are fifteen internal conflicts of the main characters in the novel. Based on the results of the interview was concluded that the reading material in the form of enrichment books based on this research was appropriate to be used as a companion learning book and it by following with the characteristics of senior high school students. The results of the questionnaire showed students responses to reading material is 82.2 percent with very good criteria.

Keywords
Values; Education; Character; Conflict; Internal; Novel; Literature

Topic
Social,Language and Cultural Education

Link: https://ifory.id/abstract/WJ6ydEnVwaRt

Corresponding Author
I Made Astika

Institutions
Doctoral Study Program of Engineering Science, Faculty of Engineering, Udayana University, Kampus Sudirman Denpasar, Bali 80234, Indonesia.

Mechanical Engineering Department of Udayana University, Street of Bukit
Jimbaran, Badung, Bali 80361, Indonesia.

Abstract
The rapid growth of population, economic and technology has lead to greater energy demand. At present, the building sector is the dominant energy user. The use of renewable energy, such as PCM is one alternative to reduce energy consumption in buildings. Phase change materials (PCMs) is a material that can absorb and store heat energy when there is a surplus and release it when there is a deficit using the principle of Latent Heat Thermal Energy Storage (LHTES). Phase change material has shown great potential as an alternative for future energy systems. This is because phase change materials can be applied over a wide temperature range and are suitable for various heat storage system designs. Organic, inorganic and eutectic PCM are a type of phase change material in terms of their chemical composition. Direct incorporation, encapsulation, immersion, shape-stabilization and stable form composite PCM are several methods for incorporating PCM into a construction materials and elements. This review focused on organic PCM technologies developed for the building. The review covers the thermal characteristics of various organic PCM and their applications for thermal energy storage in buildings. The main conclusions taken from the review show the organic PCM has a great potential to applications and to enhance the thermal performance of buildings

Keywords
organic phase change materials, thermal energy storage, building

Topic
Engineering

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

Corresponding Author
MOHAMMAD YUSRI

Institutions
Universitas Muhammadiyah Sumatera Utara (UMSU)

Abstract
The implementation of the abstentions countermeasure model conducted by KPUD Deli Serdang can be an effective means of political education for the success of the general election in Deli Serdang. The objectives of this research are: 1) to investigate the effectiveness of the implementation of the new model carried out by KPUD Deli Serdang ; 2) to formulate the lack of application of model of abstentions countermeasure in Deli Serdang; 3) to prove that the new model of abstentions countermeasure can increase voter participation in general elections this year in Deli Serdang. This research is a descriptive study with a case study approach to prove the effectiveness of using abstentions countermeasure model. The results showed that the application of abstentions countermeasure model conducted by KPUD Deli Serdang was proven to be able to reduce the number of abstentions in the region. In addition, it was found that the implementation of the model was carried out in conjunction with the election smart home program. Political education is done naturally by involving community leaders and religious leaders. The application of this new model shows good results where public participation in elections is increasing and the number of abstentions is decreasing in Deli Serdang Distric However, the role of political parties has not been seen in the implementation of this abstentions countermeasure model.

Keywords
political education, local election, abstentions countermeasure

Topic
Social,Language and Cultural Education

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

Corresponding Author
Hasbobi Tabrang

Institutions
HASANUDDIN UNIVERSITY

Abstract
ABSTRACT HASBOBI TABRANG. Predictors of Risk Factors for Insulin Resistance in Pregnancy (supervised by Elizabet C, Jusuf dan Himawan Sanusi) This study aims to determine the predictors of risk factors that can affect the incidence of insulin resistance in pregnancy and the total sampling used is 87 people as samples This study was an observational study with a cross sectional approach. The sample was 87 pregnant women second and third trimester. Data were analyzed using Chi-square test. The results showed that there was no significant relationship between the age of pregnant women, gestational age, nutritional status, parity, DM descent, and ethnicity which were predictors of insulin resistance in pregnancy. Of the 87 subjects of pregnant women 16 people aged over 35 years, 71 people aged under 35 years, getting insulin resistance above 35 years of age were smaller than insulin resistance at the age below 35 years, with p=0.845 but this difference was not significant. From the number of insulin resistance subjects in the third trimester was greater than insulin resistance in the second trimester subjects with p=0.463, but this difference was not significant. From the number of insulin resistance in underweight, normal and obese subjects, p=0.599 means that there is no significant relationship as a predictor factor for the risk of insulin resistance. The amount of insulin resistance in primiparous subjects was greater than multipara subjects p=0.417, but this difference was not significant, the number of insulin resistance subjects with a history of diabetes in the family was smaller than subjects with no history of diabetes in the family p=0.593, but this difference was not significant. From the number of insulin resistance in the Bugis tribal subjects is greater than the Makassar tribal subjects in getting the value of p=0.529 but also not significant.

Keywords
Age of pregnant women, gestational age, nutritional status, parity, family history of diabetes, ethnicity. Insulin resistance.

Topic
Maternal, neonatal and child health

Link: https://ifory.id/abstract/kjMdP6EJ9pxA

Corresponding Author
Eka Fitrajaya Rahman

Institutions
Universitas Pendidikan Indonesia

Abstract
One of the problems behind this research is the learning difficulties experienced by students on the structure of the repetition algorithm algorithm. Context problems (problems) that are not familiar or foreign to someone often make it difficult for them when trying to find the answer. Lack of mastery of basic concepts or lack of experience working on problems related to pseudecode, also influence the emergence of difficulties when working on the problem at hand. The emergence of difficulties in learning basic programming can also be caused by factors students who are less motivated in learning. Therefore, this study aims to develop a learning method using the Didactical Design Research (DDR) approach with multimedia assistance to help identify students difficulties and help find solutions. There are two stages in this study, namely the first one is to identify learning obstacles, and then is to build and implement interactive multimedia based on DDR to students. Based on the results of research and discussion it can be concluded that: 1) The form of interactive multimedia based on a didactic design containing the learning structure of the repetition algorithm “for”, “while do”, “do while” which is packaged in the form of interactive multimedia and contains questions and also stimulus that can guide students in understanding the structure of the repetition algorithm; 2) Almost all students show a positive attitude towards learning media by using interactive multimedia based on didactic designs. In the future, DDR will be developed for improving students- critical thinking.

Keywords
Algorithm and Programming, Learning Media, Research Methodology, Computer Science Education

Topic
Computer Science Education

Link: https://ifory.id/abstract/aeQ4rfUq2BNE

Corresponding Author
Harsa Wara Prabawa

Institutions
Universitas Pendidikan Indonesia

Abstract
The interest of Vocational High School students in learning theoretical material that is not from their field of expertise is very low. This is partly because students consider the material not directly related to the skills needed in their vocational fields. contextual material that seems absurd, because it is sometimes taught without the help of adequate media and practical activities, is another reason for the lack of student interest in this material. This research aims to build an educational game that can be used as a learning aid, especially in the material of logic and computer algorithms; and measuring the effectiveness of the use of educational games on increasing student understanding. This research is development research, in which media prototype design is tested several times to different subjects to get a media design that suits your needs. in relation to understanding, the media was tested on 103 students in one of the non-IT Vocational High Schools in the Bandung City area. From the results of this study note that in general, students gave very good responses regarding this educational game. The majority of students think that this game is interesting, and can help provide understanding and increase student motivation. however, this educational game is only able to help students understand at the low order level of thinking. for more complex problem-solving cases, other media assistance is needed in constructing student understanding to a higher level.

Keywords
Educational Game, logic and computer algorithms

Topic
Computer Science Education

Link: https://ifory.id/abstract/8dZucryWh9Ce

Corresponding Author
Ririn Sispiyati

Institutions
Departemen Pendidikan Matematika, FPMIPA, Universitas Pendidikan Indonesia

Abstract
The use of the balance-scale model for the learning of equation topic has often been used. However, based on limited observations, the use of the model has not been systematic and less based on learning theory. This study aims to design teaching materials about linear equations in one variable with a model of balance-scales based on realistic mathematics theories intended for junior high school students. For this purpose, we used design research, particularly the preliminary design phase. First, we compiled the material based on curriculum and mathematics textbooks. This practical view was used as consideration in designing a learning sequence. Second, the practical learning sequence was revised based on the theory of realistic mathematics education. This theory was used because it gives meaningful mathematics learning to the students. Third, we organized a focus group discussion to review and improve the design intend to produce a learning sequence that can further be used for the teacher for the teaching experiment. The results included learning sequence in the form of learning materials on the topic of linear equations in one variable with a balance-scale model. We conclude that the designed learning sequence for this topic provides more meaningful than conventional learning for the students.

Keywords
Realistic Mathematics Education, Balance-Scales Model, linear equation in one variable

Topic
Mathematics Education

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

Corresponding Author
Amrullah Amrullah

Institutions
Universitas Mataram

Abstract
The metric dimension of a graph is one of the interesting problems in the research of dimensions of the graph. There are many open problems that have not been resolved until now, some of them are metrics dimension of the bridge graph and metrics dimension of the disconnected graph. This paper presents the metrics dimension of the bridge graph in several classes of graphs namely circle, complete, and star graphs. We know that the metric dimensions of the complete, circle or star graph have been obtained. The bridge graph B (G_1,G_2,e) is a graph which is obtained from the operation of adding edge e to graphs G_1 and G_2. To obtain the metric dimension of the bridge graph from the graphs G_1 and G_2 on edge e, pd(B (G_1,G_2,e)), we used the graph structure of G_1, G_2 and the properties of the bridge graph based on the endpoint on the edge e. The results, we have show the metric dimension of the bridge graph B(G_1,G_2,e) for the circle, complete, or star graphs.

Keywords
metric dimension, bridge graph, circle graph, complete graph, star graph

Topic
Mathematics

Link: https://ifory.id/abstract/UK4LVcCkGNrZ

Corresponding Author
Arrival Rince Putri

Institutions
a,b) Department of Mathematics, Andalas University, Kampus Unand Limau Manis, Padang, 25163, Indonesia
*arrivalputri[at]gmail.com

Abstract
Mathematical modeling is a tool used for the mechanism of strategy in controlling epidemics. In this paper, a basic model for bird flu epidemic is developed. Vaccination treatment of bird flu is a common method used to control disease. The bird flu model is reformulated by taking into account vaccination. Those models are system of ordinary differential equations. Stability of both the models are discussed and associated with the threshold number stating population is free of disease or infected. Numerical solutions are given on phase plane to confirm the analytical results.

Keywords
Epidemic model; Vaccination; stability; Threshold number; Numerical solutions

Topic
Mathematics

Link: https://ifory.id/abstract/YFcnMVD3h7pk

Corresponding Author
Asyifa Rizqi Utami

Institutions
a) Laboratory of Analytical Chemistry, Bandung Institute of Technology, Jalan Ganesha 10, Bandung 40132, Indonesia
asyifarizqi[at]students.itb.ac.id
b) Analytical Chemistry Research Division, Bandung Institute of Technology, Jalan Ganesha 10, Bandung 40132, Indonesia
zulfikar[at]chem.itb.ac.id
c) Organic Chemistry Research Division, Bandung Institute of Technology, Jalan Ganesha 10, Bandung 40132, Indonesia
deana[at]chem.itb.ac.id

Abstract
A novel magnetic molecularly imprinted polymer (MMIP) was prepared for the recognition of di(2-ethylhexyl) phthalate, using methacrylic acid as a functional monomer, ethylene glycol dimethacrylate as a crosslinker and benzoil peroxide as an initiator. MMIP was characterized using Scanning Electron Microscope and infrared spectrophotometer. IR spectrum show successfull preparation of MMIP. The peak at 586 cm-1 is a typical vibration of Fe-O. The strong peaks at 1728 cm-1, 1261 cm-1 and 1153 cm-1 correspond to the C=O stretching vibration and C-O vibration of methacrylic acid and DEHP. The peak at 1462 cm-1 corresponds to C-C aromatic vibration of DEHP. A broad absorption band at 3468 cm-1 correspond to the stretching vibration of O-H bonds. Experimental results show the potential of magnetic molecularly imprinted polymer for selective recognition of di-(2-ethylhexyl) phthalate.

Keywords
di(2-ethylhexyl) phthalate, imprinted polymers, magnetite

Topic
Chemistry

Link: https://ifory.id/abstract/YvJpfDPZ2jAm

Corresponding Author
Arrival Rince Putri

Institutions
a,b) Department of Mathematics, Andalas University, Kampus Unand Limau Manis, Padang, 25163, Indonesia
*arrivalputri[at]gmail.com

Abstract
The Susceptible Infected and Removed (SIR) model is extended by considering three treatments, without vaccination, vaccination in susceptible individuals, and mutation in disease viruses. Equilibrium points of those models were determined. Stability of those models was analyzed and associated with threshold parameters. Analytical result was confirmed by numerical result showing plot solution and behaviour of the system in phase plane. The results of this study inform parameters that affect stability of the system so that the best policy to prevent endemic can be proposed.

Keywords
Epidemic model; Vaccination; Mutation; Stability; Numerical

Topic
Mathematics

Link: https://ifory.id/abstract/DBxn6baHGLYT

Corresponding Author
Lilit Rusyati

Institutions
UPI

Abstract
The needs of developing competent human resources on 21st Century Skills nowadays are become an issue. One of the skills is creative thinking skill. In this research, STEM-based E-Module can be an option. Investigate the effect of implementing STEM-based E-Module, investigate the differences between the female and male groupon on their creative thinking, and determine students- impression on STEM-based E-Module are the objectives that have to be reached. The pre-experiment method with one group pre-test and post test was conducted through a research subject of 8th-grade students at a private school in Bandung that taken from a purposive sampling. Creative thinking was determined by a test of Verbal Torrance Test of Creative Thinking (TTCT) in Oxygen for Life topic, while students- impression obtained by a questionnaire. The result of this research stated that there is a significant difference between post-test of Verbal TTCT and minimum criteria of mastery learning that has been decided as standard, which is 65. The analysis was using t-paired test using SPSS. In differentiating between female and male group on their creative thinking, independent t-test was conducted. But there is no significant differences between female group and male group on their creative thinking.

Keywords
STEM-based e-module, students- creative thinking, gender, oxygen for life

Topic
Integrated Science Education

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

Corresponding Author
Miftah Khairina Bahari

Institutions
a) Department of Science Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi 229, Bandung, 40154, Indonesia
*dita.khairina[at]yahoo.com
b) Department of Biology Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi 229, Bandung, 40154, Indonesia

Abstract
Traditionally taught classes often fail to keep the students active independently and the observed students are shown to be lacking is their metacognitive awareness. Metacognitive awareness is an important aspect to develop as metacognitive knowledge is task or domain-specific and therefore, possibly compensate low ability in concept mastery or lack of relevant prior knowledge. This study aims to investigate the effect of self-regulated learning on students- metacognitive awareness. The method used is a weak experiment method. The sample is taken from grade 7 students in one of the secondary schools in Bandung, Indonesia. The sample includes 27 students consisting of 14 females and 13 males. Self-regulated learning is also found to have N-gain value of 0.19 meaning that there is a low improvement in students- metacognitive awareness. The treatment improves the domain of procedural knowledge the highest out of eight aspects in metacognitive awareness. This research also shows that the difference in the result of the application of self-regulated learning in different gender is that it results in higher metacognitive awareness in female students. This research will be beneficial for researchers by providing them further materials and data on how self-regulated learning affects students- metacognitive awareness.

Keywords
Self-Regulated Learning, Metacognitive Awareness, Electricity

Topic
Integrated Science Education

Link: https://ifory.id/abstract/Nd32XuGMr4FA

Corresponding Author
Vidyawati Vidyawati

Institutions
UPI

Abstract
This research aims to determine 10th grade students enhancement of problem solving skill and its level to solve problems on work and energy material. This research used quasi-experimental method and pre-test post-test control group design. The participants are 60 students, picked from 350 students at one of the senior high schools in Bandung district. The samples were selected by purposive sampling technique. The instrument used in this research is in the form of essay questions based on problems in daily life. The problem solving skill is measured by pre-test and post-test, based on the Multiple-ways of Rosengrant indicators. The data analysis in this research used the average percentage gain, that is normalized and interpreted using criteria developed by Hake. Based on the research, there is an increasement in problem solving skill on each indicator. The indicators are in “moderate” level with a normalized score N-gain of 0.48. The result shows an enhancement in problem solving skill of 10th grade students at each level.

Keywords
problem solving skill, multiple ways of Rosengrant, work and energy

Topic
Physics Education

Link: https://ifory.id/abstract/H2vudpJDYk39

Corresponding Author
Abdul Latief Toleng

Institutions
1Postgraduate of Animal Production Technology, Faculty of Animal Science, Hasanuddin University
2Department of Animal Production, Faculty of Animal Science, Hasanuddin University

Abstract
Lower conception rate of cows in the tropics might be affected by low quality of semen collected from bulls consumed low quality food. This study was conducted to evaluate the conception rate of Bali cows inseminated with semen of the bulls supplemented with Moringa oleifera leaf (MOL) powder blocks. There were 26 Bali cows 3-4 years of age, non pregnant and having corpus luteum, used in this study. All animals were injected with 2 ml of PGF2α (juramate) to induce and to synchronize the estrous. They were divided into 2 groups, group 1 (P1, n=16) were inseminated with semen of bulls supplemented with MOL powder blocks. Group 2 (P0, n=10) were inseminated with commercially available semen. All cows were artificially inseminated 48 hours after the PGF injection. Pregnancy diagnosis were perfomed by rectal palpation 60 days after the insemination. The mean diffents between the two treatments were analyzed by chi-squared analysis. All animals in the two treatments came in oestrus after the PGF injection. Thirteen (13) out of 16 cows (81%) and 7 out of 10 cows (70%) detected in pregnant, respectively for P1 and P0. Although statistical analysis showed that there was not different between the two treatments (P>0.05), but economically, the treatment of P1 could increase 11% of conception rate. It can be concluded that the supplementation of MOL powder block could increase the conception rate of Bali cows.

Keywords
Bali cows, Moringa oliefera, semen quality, conception rate

Topic
Animal reproduction

Link: https://ifory.id/abstract/X7qwDkj4AebM

Corresponding Author
Vania Zhafirah

Institutions
1Departement of Science Education, Universitas Pendidikan Indonesia,
Jl. Dr, Setiabudi 229, Bandung 40154,Indonesia
2Departement of Physics Education, Universitas Pendidikan Indonesia,
Jl. Dr, Setiabudi 229, Bandung 40154,Indonesia

Abstract
Revolution industry 4.0 is really related to technology, in which the Internet and cloud computing create different opportunities and challenges for formal education systems.Blended Learning approach is one approach that combined online learning and face to face learning. The aim of this research was to investigate the effect of Blended Learning on students- motivation in learning the solar system for 7th-grade students. The method used in this research was weak experiment research.Research design in this researchis used byThe One-Shot Case Study. Participants in this research were 16 male studentssecondary schoolsat one Privat Junior High School in Bandung, Indonesia. The average score of students motivation that learning used Blended Learning is 68.88 and categorized as adequately. The percentageis93.75% of students are categorized as adequately motivated and 6.25% of students categorized as highly motivated. Based on the results showed that Blended Learning can be an alternative tool to enhance students- motivation

Keywords
Blended Learning, Students- Motivation, Solar System

Topic
Integrated Science Education

Link: https://ifory.id/abstract/LV7cZXWfAvUF

Corresponding Author
Abdul Latief Toleng

Institutions
1Postgraduate of Animal Production Technology, Hasanuddin University, Indonesia.
2Department of Animal Production, Faculty of Animal Science, Hasanuddin University, Indonesia.

Abstract
Lower milk productivity of dairy cows might be correlated with the low milk consumption in Indonesia. This problem might be adversely affected by low quality and quantity of food intake. Therefore, the purpose of this study was to evaluate the milk production of dairy cows supplemented with “Moringa oleifera leaf (MOL) powder block”. There were 40 suckling Frisient Holland dairy cows used in this study. All animals were fed with roughage of a mix of natural with elephant grasses, rice bran and soybean meal. They were divided into two groups of treatments. The first group supplemented with MOL powder block 500 g/head/day for 21 days and the second group was remained without a supplementation. Hand milking was performed twice a day. The daily milk production were compared between the two treatments by using student-s t_test. The supplementation of “Moringa oleifera leaf (MOL) powder block significantly (P<0.01) increased milk production in compared to that without supplementation (10.75 vs 8.17 litre/head/day). This study concluded that milk production could be increased by a supplementation of Moringa oleifera leaf (MOL) powder block.

Keywords
dairy, milk production, moringa oleifera

Topic
Animal reproduction

Link: https://ifory.id/abstract/dRXupgnN9tYb

Corresponding Author
Zulfa Fitri Ikatrinasari

Institutions
Industrial Engineering Department, Universitas Mercu Buana

Abstract
One of DKI Jakartas government programs is the development of a Child Friendly Integrated Public Space (RPTRA), where every urban village in DKI Jakarta will be built RPTRA. One of the urban villages in DKI Jakarta that the RPTRA is building and the leading program of the PKK activator is already running is the Meruya Selatan village. The PKK group in South Meruya Village is one of the groups of women who have played a role in improving the familys economy. Several home industry businesses have been carried out by the PKK Group in South Meruya Village, namely the food and handicraft industry. Besides food and crafts, PKK Mart RPTRA Meruya Selatan also needs to develop new superior products that have prospective market prospects. Among the products that have interesting prospects to be developed are organic homemade soap. For this reason, training was made in making organic homemade soap to increase insight and knowledge in the diversification of business products to the community around the South Meruya RPTRA, PKK Women, and Youth Organization in Meruya Selatan Village.

Keywords
organic homemade soap, RPTRA, home industy

Topic
Entrepreneurship and Innovation

Link: https://ifory.id/abstract/AFGnmC2wNpgX

Corresponding Author
kartika yulianti

Institutions
Universitas Pendidikan Indonesia

Abstract
In this paper, we present a simple modified Lax-Friedrich method for the numerical solution of shallow water equations. In the proposed method, we approximate the next-step value by applying the Lax–Friedrichs method at the half grid of space. The method were applied to simulate the wave propagation at a rest pool for non-flat topography. Based on the simulation, the proposed method is more accurate in terms of fulfill the conservation law than the classical Lax-Friedrichs method and it shows good agreement with steady analytical solution.

Keywords
Shallow water equations, Lax-Friedrichs method, Modification

Topic
Mathematics

Link: https://ifory.id/abstract/VXDv3yrZ4Wc9

Corresponding Author
Levyda Levyda

Institutions
Sahid University

Abstract
Harapan Island is one of the islands in Kecamatan Kepulauan Seribu Utara which is visited by many tourists. This condition encourages local residents to commercialize their residences as homestays. Homestay required to meet the standards. However, there are still many homestay owners who do not understand about business standards and do not have a certificate, therefore training is needed on homestay standards for owners. The purpose of the training is to increase knowledge about the standards of the homestay business and improve the attitude of the owner. The training was attended by 23% of homestay owners. Training materials include homestay products, services and management. Material refers to regulations regarding the standard of homestay business. The training method used is reading, material presentation, self-evaluation and discussion. The standard that has not been fulfilled is the provision of a kitchen for guests, guest identity recording, availability of price lists and development of human resources. The results of the training evaluation indicate an increase in knowledge and acceptance of homestay owners. Training evaluation showed that there was an increase in knowledge and changes in the attitude of the trainees. Training is still needed to improve the knowledge and improvement of the attitude of homestay owners.

Keywords
homestay, business standard, knowledge and acceptance of training participants,training evaluation

Topic
Sustainable Development

Link: https://ifory.id/abstract/z4Adj3TLBcxt

Corresponding Author
Deni Martin

Institutions
Universitas Pendidikan Indonesia

Abstract
This research study about lack of information that can be conveyed by schools about student attendance to they parents and study about conventional attendance documentation process. The purpose of this research is: (1) design and build a student attendance reporting application using whatsapp gateway for parents to control of their kids and can help users in the presence process. The development model used in this study is prototyping which consists of stages: (1) Listen to customer, (2) Build revize mock-up, (3) Customer test drive mock-up. Data collection techniques using TAM (Technology Acceptance Model) and using the rating scale as a calculation method, with the results of the research is: The level of eligibility of student attendance reporting systems reviewed by aspect perceived usefulness is 86% with a very good category, Perceived Ease of Use of 90% with very good category, Behavioral Intention is 90% with very good category, Actual use is 90% with very good category, Attitude Toward Using is 90% with very good category, with an average rating is 89%. from the result of eligibility level shows that the student attendance reporting system can help user to make a presence process and worthy for use

Keywords
student presence, presence system, Android, Technology Acceptance Model, prototyping

Topic
Computer Science Education

Link: https://ifory.id/abstract/MXBvgqAnuz9j

Corresponding Author
Ade Trisna

Institutions
Universitas Andalas (Andalas University)

Abstract
Palm oil sludge is a by-product of palm oil processing which contains nutritional value for use as a poultry feed supplement. This study aims to determine the effect of the use of palm oil sludge fermented with Pleurotus ostreatus (POSF) on cholesterol and fat content, and egg yolk index of quails feed this supplement . Two hundred 20 week old quails (Coturnix coturnix japonica) were used in this study which used completely randomized design (RAL) with 5 treatments and 4 replications. Treatment was the FPS content of the feed which varied from 0% FPS for treatment A, 6% for B, 12% for C, 18% for D, and 24% for treatment E. The parameters measured were egg yolk cholesterol (mg / 100g), egg yolk lipid content(%) and yolk index. The results of the analysis of variance showed that the use of fermented palm sludge with Pleurotus ostreatus had a highly significant effect (P <0.01) on egg yolk cholesterol but no significant effect (P> 0.05) on egg yolk fat content or yolk index . Quails fed higher levels of POSF (D,E) produced eggs with highly significantly lower (P <0.01) cholesterol levels than the control. The results of the study suggest quail feed could be supplemented with 24% POSF to effectively reduce egg yolk cholesterol up to 21% but such supplementation is unlikely to have an effect on yolk fat content or yolk index.

Keywords
Palm oil sludge, Pleurotus ostreatus, Cholesterol, Fat, Yolk Index, Quail

Topic
Environmentally Sustainable Agriculture

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

Corresponding Author
Aty Herawati

Institutions
Universitas Mercu Buana

Abstract
This training is an activity related to the economic empowerment of the community through cooperatives in partner villages. In order to support community economic empowerment, the counseling and training on managing business units in the scope of cooperatives is very precise. Cooperatives can be interpreted as a business entity that has members in which each member has the duties and responsibilities. Each member has the same voting rights in every decision to be taken. The cooperative financial management is very important in the management of cooperatives. How to manage finances on a cooperative will be delivered to this training. Therefore, this activity will give mentoring and training to the managers of cooperatives in particular and the general public so that the partner will be able to implement in the activities of managing the cooperative finances. The expected outcomes from this activity are: (1) Knowledge development in managing the finance of cooperatives in South Meruya village. (2) The formation of social groups concerned to develop cooperatives in South Meruya village.

Keywords
Cooperative finance; welfare; community

Topic
Sustainable Development

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

Corresponding Author
Ferry Cahyadi

Institutions
UPI

Abstract
Ocean literacy is an understanding of the ocean and its influences. As a maritime nation and the worlds largest archipelago country, the education systems in Indonesia should contain ocean literacy. Based on scientific publication indexes such as Google Scholar and Scopus, there is no known research on ocean literacy in Indonesia. This study tries to translate the International Ocean Literacy Survey v4 into Bahasa Indonesia and validate its content to ocean scientist. A trial was conducted on first-year college students with a science major at the high school level. Preliminary results indicate that most of them have difficulty answering ocean literacy questions.

Keywords
ocean literacy, indonesia, preliminary result

Topic
Integrated Science Education

Link: https://ifory.id/abstract/Nha2eEzjt6VP

Corresponding Author
Harfa Iskandaria

Institutions
Universitas Budi Luhur, Jalan Ciledug Raya, Petukangan Utara Jakarta 12260, Jakarta Selatan

Abstract
Abstract – High school in Indonesia has two types, specifically senior high schools and vocational schools (SMK). Vocational high schools in Indonesia have a lot of education focus which aims to provide education to their students so they can work immediately. One of the vocational schools in Indonesia is the Tangerang 4 Vocational High School which focuses on education in engineering. One of the engineering scopes at SMK Negeri 4 Tangerang is "Drawing Technique for Building" (Teknik Gambar Bangunan). "Drawing Technique for Building" is a vocational class that specializes in learning how to draw techniques for houses and buildings. As vocational students of "Building Drawing Technique", each student must learn how to draw techniques according to ISO standards complete with various etiquettes in manually, after proficient in drawing manually, students must learn AutoCAD, an software for drawing, because this becomes the main competency as students "Building Drawing Techniques". To increase the capacity and capabilities of its students at SMK 4 Tangerang, the Budi Luhur University Architecture Study Program introduces one of the software related to building drawing The software introduced is Revit Architecture version 2013. Revit Architecture 2013 is a software that aims to create building construction designs for architects and supports the concept of BIM (Building Information Modeling). The output of this socialization is that students of SMK Negeri 4 Tangerang understanding about software for drawing techniques other than AutoCAD and various conveniences when drawing with Revit Architecture 2013 software

Keywords
Revit Architecure; Engineering drawings; BIM; Vocational School

Topic
Information Communication Technology

Link: https://ifory.id/abstract/JgGP3kbuzRBE

Corresponding Author
Reni Susanti

Institutions
Universitas Muhammadiyah Malang

Abstract
This study aims to describe the application of a scientific approach using guided inquiry and see the level of critical thinking skills of students in Social Statistics courses. This type of research is descriptive with a qualitative approach. Data collection methods in This study uses observations and tests. Data obtained from 60 students. The results showed that the application of the scientific approach using guided inquiry in Social Statistics courses can be carried out following the learning steps that have been prepared with an average student activity of 80%. Student learning activities during learning are categorized as good, with details of activities observing, reasoning, trying and communicating the same category which is good, while the questioning activity is quite good. Students critical thinking skills as a whole are classified as very good, with details that are classified as high in the aspects of identifying the assumptions given, and in good categories on the indicator of revealing data/definitions/ theorems to solve problems and evaluating aspects in solving problems.

Keywords
guided inquiry, scientific approach, critical thinking

Topic
Mathematics Education

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

Corresponding Author
Harefan Arief

Institutions
a) Universitas Mercu Buana
b) Universitas Mercu Buana
c) Universitas Mercu Buana
d) Universitas Mercu Buana
e) Universitas Brawijaya
f) Universitas Brawijaya

Abstract
Often the word innovation is associated with the word invention. According to Drucker (1985), Innovation is a special tool in exploiting changes in various businesses and services. He added, this innovation can be presented as a discipline that can be learned and practiced. In other words, innovation is also said to be "an idea, practice, or object that is considered new by other individuals or adoption units" (Daugherty et al., 2011; Grawe, 2009; Rogers, 1995). Meanwhile, Tidd, Bessant, Pavitt, and Wiley (1998) define innovation as the process of turning opportunities into fresh ideas and being widely used in practice. Global Entrepreneurion Monitor (GEM), reports that entrepreneurship is now the main stage in the arena of public policy in most countries. As social, environmental and economic challenges face humanity, many people believe that business has an important role to play in transforming society in the future . Entrepreneurs are considered to have a special role in innovation and bringing social change, traditionally from a macroeconomic perspective (Bosma et al, 2012). The field of innovation is very broad. The ability to develop new ideas and innovations has become a priority for many organizations. Intense global competition and technological developments have made innovation a reality a source of competitive advantage. The ability of an entrepreneur to put forward the idea of a higher value can be a source of competitive advantage. Entrepreneur that can create competitive advantage are able to increase their activities with the experience gained, by the knowledge gained, over time, it may be a source of distinctive competence in the market.

Keywords
Competition advantage, Environmental, Entrepreneur, Innovation

Topic
Entrepreneurship and Innovation

Link: https://ifory.id/abstract/AjRXQpYn6ucH

Corresponding Author
Dian Usdiyana

Institutions
1Departemen Pendidikan Matematika, Universitas Pendidikan Indonesia,
Jl. Setiabudhi No. 229, Bandung 40154, Indonesia
Email: dianusdy[at]upi.edu

Abstract
Abstract. This research aims to design an algebra learning sequence on the topic of linear equations in one variable—which was taught in Junior High School. We used design research method to do this, and preliminary design phase in particular. First, we designed a sequence of daily life problems in order for students can be familiar with this. This sequence of problems was used for designing a learning sequence. Next, we designed a sequence of learning according to the theory of Realistic Mathematics Education because this theory provides meaningful mathematics for students. Finally, we discussed the design to obtain final learning sequence for a teaching experiment. We consider that the result of the learning design is better than the conventional learning sequence, and it is more meaningful for students.

Keywords
Realistic Mathematics Education and linear equations in one variabel

Topic
Mathematics Education

Link: https://ifory.id/abstract/FXjZTdDVbm6k

Corresponding Author
Harefan Arief

Institutions
a) Universitas Mercu Buana
b) Universitas Mercu Buana
c) Universitas Mercu Buana
d) Universitas Brawijaya

Abstract
The development of technology has not only changed the way people communicate, but also their trading methods. Where many e-commerce sites have begun to appear which are useful for becoming a place for buying and selling goods online that can be used by entrepreneurs. This opportunity was not missed by the SMEs, where this marketplace can be utilized by the creative industries. The reason is that the obstacle always faced is marketing. Now with e-commerce like a fresh breeze for them because by using the marketplace their market will likely be wider and promotions are much cheaper . E-commerce or marketplace for SMEs is actually the same as a mall or shopping place which distinguishes it online. Like a shopping center, selling on e-commerce services also requires promotion in cyberspace. Seeing how much activity is spent using the marketplace as meeting daily needs, this is what makes this marketplace hunted. Not only by users but also entrepreneurs . Enthusiastic community increased because it was supported by adequate infrastructure and easy access. The Investment Coordinating Board (BKPM) revealed the value of investment in the digital market sector in 2017 reached USD 5 billion. This makes the marketplace the most sought after economic sector (Outletz.ID, 2018).

Keywords
Digital market, E-commerce, Entrepreneurs, Marketplace

Topic
Entrepreneurship and Innovation

Link: https://ifory.id/abstract/DN4d6RTacXy3