Indonesia Conference Directory

Corresponding Author
FITRIANY AMALIA WARDHANI

Institutions
Research and Development Division for Earth Conservation and Information, Indonesian Institute of Science (LIPI)

Abstract
Jatibungkus is one of limestone cave geosite in Karangsambung Karangbolong National Geopark, managed by Langse Pokdarwis (Kelompok Sadar Wisata). The objective of the study is to improve the economical value of geoturism as an alternative livelihood of local people in Jatibungkus through geosite development. This study used four methods, regional geological studies, field research, geosite and geomorphosite assessment analysis, and planning the geo track system inside and outside around the geosite. This research show that Jatibungkus Geosite is isolated hill with unique cave ornaments in geological features. This geosite is also related to olisostrom mechanism in Karangsambung Formation. Based on the geosite and geomorphosite assessment analysis, Jatibungkus Geosite eligible as a geotourism object with the highest feasibility values in conservation values of 87.5%. The other feasibility values are economical values of 66,6%, educational values of 62,5%, scientific and intrinsic values of 50% and added values of 50%. Geo track system in this geosite is integrating unique visual cave ornament and structural morphology in the geosite area. This geo track system is also integrated with other transportation routes and connected with other geosites in the Karangsambung Karangbolong National Geopark.

Keywords
geo track, geotourism, Karangsambung, Karangbolong, geopark, Jatibungkus

Topic
Land Management

Link: https://ifory.id/abstract/D8kGyBb2YxHZ

Corresponding Author
Dias Andris Susanto

Institutions
Universitas Negeri Semarang

Abstract
Abstract This study investigated the use of English discourse markers in students writing at Universitas PGRI Semarang, Indonesia. Fraser (2009) identifies three functional classes of EDMs; contrastive, elaborative and inferential. The problems of this study are; what are the English discourse markers use in students writing, and what are the functions realized in students writing. This is a qualitative descriptive design. The sample of the study was the EFL students writing result which have 45 essays at English education study program of Universtitas PGRI Semarang Indonesia. In analyzing the data, the writers did prior activities such as collecting and classifying. The result is that shows students used contrastive EDMs like; but 24, however 8, although 5, elaborative EDMs like; and 344, also 50, in addition 3, inferential EDMs like; as a result 4, then 10, because 13, since 39. It elaborates us that mostly students used and familiar using elaborative functions rather than contrastive and inferential. Furthermore, they have a very limitation in understanding and comprehending some words of EDMs in their writing, it has only 10 markers in all functions. The more markers they use in their writing so that the more coherence and cohesion within their writing. Conclusion of this study reflects that students are still weak in using some EDMs in their writing so that they only produce the certain familiar markers. The pedagogical implication that I can say is that students of EFL need to get some kinds of EDMs to compose their writing well organized and understood

Keywords
Keywords: English discourse markers, Students writing

Topic
Education

Link: https://ifory.id/abstract/BWa8EC7xNPrv

Corresponding Author
FILZAH FARHANA HASIBUAN

Institutions
a) LTBI, Universitas Negeri Medan
Jalan William Iskandar Pasar V, Medan Tembung,
Indonesia.

Abstract
This research was carried out to investigate the lexical creation in Iis Dahlias slang words in mamaku hits. the objective of the research is to find out the types of lexical creation used by Iis Dahlia. the subject of this research is Iis Dahlia who is the presenter in Mamaku Hits. The utterances of Iis Dahlia in Word or phrases were the data of this research. Descriptive qualitative method was used in this research. the instrument of this research was observation. the types of lexical creation were analyzed by using theory of Yule (1995). in this research found nine types of lexical creation. the types were conversion, acronym, blending, coinage, borrowing, derivation, echoism, multiple process, reduplication.

Keywords
Types of lexical creation; Slang

Topic
Social,Language and Cultural Education

Link: https://ifory.id/abstract/kdv3cPhKrQGx

Corresponding Author
Rina Sovianti

Institutions
Universitas Bhayangkara Jakarta Raya

Abstract
Researcher using the critical discourse analysis Sara Mills to analyze the text of the news. The point of concern from the perspective of Sarah Mills is showing how text bias in showing women. Women tend to be shown in the text as the wrong party and marginal compared to the male party. Siti Aisyah was released from custody that is constructed by three online media as an innocent woman and the success of the Government in lobbying the courts of Malaysia. In relation with the Governments success in lobbying the Court of Malaysia, the Government of Indonesia has a different agenda. A different agenda is the campaign about the success of the activities of the Government of President Joko Widodo. Construction the news that are shown in discourse are the woman always weak and need help in all things. With the help of the Government of Siti Aisyah successfully escaped the death penalty by the Court of Malaysia as a suspect in the murder of Kim Jong Nam. Researchers choose online media Detik.Com, Kompas.Com and Merdeka.Com because the three media is the main reference for people looking for Indonesia news. In addition, the two media are categorized as the largest online media by Alexa. Tribunnews.Com was ranked first, second place is occupied by the Detik.Com, and the third was occupied Kompas.com. Tribunnews.Com is not being sampled in this study because the Tribunnews.Com has sub sites in every province, making Tribunnews.Com as the site of the most recognized by the public. Merdeka.Com is number five popular media in Indonesia by Alexa (2015).

Keywords
Release of Siti Aisyah, Critical Discourse Analysis of Release of Siti Aisyah

Topic
Social Kultural

Link: https://ifory.id/abstract/8PqC3jMB6Vfa

Corresponding Author
Iis Sujarwati

Institutions
Program Pascasarjana, Universitas negeri Semarang, Indonesia

Abstract
Writing is often claimed as the most difficult and complex skill to be mastered by students. Moreover, compared to the other skills, writing is more thoughtful. In order to produce a good writing, the students writer needs a sufficient guidance from the teacher (lecturer). Providing feedback on students writing is one of the ways to help students become a good writer. This article aimed at exploring lecturers beliefs, lecturers practices and the possibility of their beliefs transformation regarding the provision of written corrective feedback on students writing. The participants of this study were three lecturers of English Education Department of an Islamic State University of Lampung, Indonesia who taught writing. Interviews and document analysis were employed in collecting the data. The data was analyzed by using Thematic analysis. The findings have shown that most of lecturers practices are mismatch with their beliefs. Moreover, the result of interview after some teaching practices has shown that their beliefs shifted by the time.

Keywords
Beliefs, Practices, Written Corrective Feedback, Writing

Topic
Inovasi (Administrasi, Pemerintahan, Pelayanan Publik, Pendidikan, Kebijakan)

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

Corresponding Author
Angga Dewi Anggraeni

Institutions
Politeknik Pos Indonesia

Abstract
e-Toll is an electronic card used to pay for toll road entry fees in parts of Indonesia. E-Toll users only need to attach a card to pay the toll in 4 seconds, faster than when paying in cash that takes 7 seconds. The use of e-Toll also reduces operational costs because only costs are needed to collect, deposit and transfer cash to and from the Bank. In addition to being the first step in modernizing money collection, the use of e-Toll is also intended to reduce violations because toll officers do not receive payments directly. However, the policy of using e-Toll on the toll road certainly has an impact on the number of employees at the toll booths, which are not small. The situation as described above occurs at PT. Jasa Marga Purbaleunyi branch which is engaged in services, especially Toll Road maintenance services. In this case the author is interested in knowing more about the Professional Transfer Program and its influence on employee psychology at PT. Jasa Marga Cab. Purbaleunyi. PT Jasa Marga establishes a cashless policy or the implementation of a non-cash payment system which is a direct program from the government. With the existence of this policy, Jasa Marga issued a Professional Transfer policy for employees at the Toll Gate. Based on research results, 82% of the Toll Gate employees who participated in this program felt that Professional Transfer was the right solution for employees affected by the cashless policy. So it was concluded that the Professional Transfer Policy was the right solution in dealing with cashless policies.

Keywords
Profession Transfer. Cashless Policy. e-toll

Topic
Management Science

Link: https://ifory.id/abstract/PCj9w4dQGHx6

Corresponding Author
Pri Riznaya

Institutions
Universitas Padjadjaran

Abstract
The purpose of this research was to determine the effect of energy and protein balances on the growth female Garut lamb. The variables are daily consumption, daily weight gain, and conversion ratio value. The treatments given included R1 (12% protein and 60% TDN), R2 (12% protein and 65% TDN), R3 (14% protein and 60% TDN), R4 (14% protein and 65% TDN), R5 (16% protein and 60% TDN), and R6 (16% protein and 65% TDN). The feed are arrange using field grass, fine bran, onggok, soy sauce pulp, coconut cake, and premix. The design of the room uses a Completely Randomized Design (CRD), with 4 (four) replications. Data analysis used variance analysis and Duncans multiple analysis. The results showed that various protein and energy ratio had significant effect on daily consumption (whereas R1, R3, and R5 gave better results), but did not affect the daily weight gain and feed conversion ratio value.

Keywords
rut female lamb, protein and energy balances, growth

Topic
Biology

Link: https://ifory.id/abstract/wGbJEjNV4LqW

Corresponding Author
Farid Pujiono

Institutions
Department of Biology, Faculty of Mathematics and Natural Sciences
Universitas Negeri Jakarta, Indonesia
Coresponding author: srirahayu[at]unj.ac.id

Abstract
Sugar cane is a raw material for making sugar which can only be grown in tropical regions. Sugarcane bagasse generally consist of cellulose sugar groups such as hemicellulose, lignocellulose, and lignin. other than that it contains hydroxyl groups to absorb colors and free fatty acids. The purpose of this study was to measure baggase charcoal optimation based on different concentration and immersing time to stabilize cooking oil quality. CRD (Complete Randomized Design) was applied with 3x3 factors. Baggase charcoal was activated using KMnO4 1N for 2 days. Variation of baggase charcoal concentration are (5%, 10%, 15%) and variation time to optimation for 4, 5, and 6 days. The result showed that baggase charcoal affected to decrease FFA (Free Fatty Acid). Furthermore it also affected with the turbidity of used cooking oil.

Keywords
sugar cane, cellulose, hydroxyl, free fatty acid

Topic
Biology

Link: https://ifory.id/abstract/j6uteYEfavyK

Corresponding Author
Irvan Virgian

Institutions
Universitas Pendidikan Indonesia

Abstract
The use of LED technology in street lighting systems can increase energy efficiency and uniformity. This paper presents the results of redesigning street lighting. Redesign process is carried out to conform to lighting standards. The method used in this paper is the photometric approach and for the simulation process using DIALux Evo software. SNI 7391: 2008 is used as a guide in the process of redesigning. Based on simulation results, the use of LEDs is more efficient than the SOX lamp. LED has been chosen because it had good lighting quality, energy efficient, and durable. The street lighting systems that comply with the standards will provide comfort for road users and minimize the occurrence of crime at night.

Keywords
street lighting; photometric computation; LED; energy efficiency; uniformity

Topic
Electrical Engineering

Link: https://ifory.id/abstract/mR4tLTe6Ag93

Corresponding Author
Cecep Kustandi

Institutions
Universitas Negeri Jakarta

Abstract
This study aims to describe the application of learning object virtual reality use in online learning for educational Technology students- in Higher Education at Universitas Negeri Jakarta, Indonesia. The study focus on learning theories, learning method and learning model use in technology to improving learning outcomes in the classroom. The method use explanatory sequential mixed method research. The first phase, data collected by quantitative approach through distributing instruments to 300 respondents. The second phase, analyze of the result through qualitative approach. The data conducted by observation in the class, collaboration with 30 students- in academic year 2016 and 6 lecture of Learning Theories and Learning for interview. The results shows indicate that using virtual reality can be foster motivation to learn, develop students- skill in learning model simulation and learning can be efficient and effective. Learning object virtual reality also can be improve students- to teaching practice and exercise students- to create innovation learning model use in technology.

Keywords
learning object; virtual reality; online learning; simulation

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/w9N2RjbhCz7t

Corresponding Author
Pri Riznaya

Institutions
Universitas Padjadjaran

Abstract
The purpose of the research was to know the effect of C / N balance of bioslurry fertilizer (biogas sludge) and fertilizer dose on the growth of leek (Allium fistulosum). The design used was a complete randomized design of factorial pattern. The first factor of the C and N balances are 18, 20, 30 and 40. The second factor is the composting dose of 10 tons / hectare, 20 tons / hectare and 30 tons / hectare. Each treatment was repeated three times. The observed variables were the increase in length, width and number of strands. The data obtained were analyzed variance (ANOVA). The result of ststistic analysis shows that there is C / N influence on the number of strands; there was a dose effect on the length and width of leek but no interaction between C / N and the dose of fertilization. The best onion growth occurs at a dose of 10 tons / hectare as it leads to an increase in length, the highest width which is an important indicator of onion measurements.

Keywords
C and N Balance, dose, leek, length increase, width and height.

Topic
Biology

Link: https://ifory.id/abstract/3x4L8udAYvz2

Corresponding Author
Ibnu Malik Al Hamas

Institutions
Universitas Pendidikan Indonesia

Abstract
LED lights have been widely applied to street lighting in every country, but not a few still using conventional lamps. This paper presents the results of evaluating efficiency and photometric performance from street lighting lamps. The level of illumination and uniformity ratio will be calculated to make a quantitative comparison between LED lights and conventional lamps according to Indonesian National Standards. conditions in the field will be simulated using DIALux software. the results of this paper are to find the most effective and efficient type of lamps and will be useful for the Public Works Agency in making decision on the selection of the new lamps technology for street lighting, determining the type of lamp depends on needs, light quality, and energy saving.

Keywords
Street Lighting; Energy Saving; HPS MH and LEDs; Photometric Performance;

Topic
Electrical Engineering

Link: https://ifory.id/abstract/Ac8Mxu9TdqEh

Corresponding Author
Astri Yuliawati

Institutions
a)Biology Education Department, Universitas Islam Negeri Sunan Gunung Djati, Indonesia
*astriyuliawati[at]uinsgd.ac.id
b)Departement of Forest Resource Conservation and Ecotourism,Bogor Agricultural University. Indonesia

Abstract
Three main objectives of conservation are protection, preservation and sustainable utilization. Timor deer is one of Indonesian wild animal that has many benefits and high economic value. But the current timor deer population continues to decrease with population decline rate of 10% in each generation. It caused by harvesting without considering sustainability. Therefore it is necessary to manage the population for timor deer, so it can be available for sustainable use. Optimum sustainable population is a threshold population size for sustainable harvesting. The purpose of this study is to estimate the optimum sustainable population size so timor deer can be utilized sustainably in the future. The method used was projecting the actual population by using Leslie matrix (Density Dependence) so that population growth can be seen. The optimum sustainable population is the size of the population with the highest growth rate. The time used for this population projection is 100 years. Based on the results of this research, the optimum sustainable population size for timor deer in the pananjung Pangandaran nature reserve and natural park is 751 individuals and the optimum sustainable population size will be achieved in 2047.

Keywords
Sustain Yield, Timor deer, Conservation

Topic
Biology

Link: https://ifory.id/abstract/jPuM37F24cKC

Corresponding Author
Neneng Siti Silfi Ambarwati

Institutions
Department of Cosmetology, Faculty of Engineering, Universitas Negeri Jakarta, Jl. Rawamangun Muka, East Jakarta, Indonesia, 13220

Abstract
Background: Gynura procumbens (Asteraceae family) is a medicinal plant commonly used in Asian countries such as China, Thailand, Indonesia, Malaysia and Vietnam. G. procumbens contain of flavonoids and glycosides and have bacterial activity and anti-fungal activity such as Candida albicans and Aspergillus niger. Purpose: The purpose of this study was to obtain empirical data about the effect of using the G. procumbens leaves extract on reducing dandruff on the scalp. Methods: Scalp observation by examiners by using observation sheets and grating instruments assisted by a skin and hair analyzer. Reduction of scalp dandruff was the difference between the results of the initial test and the final test (after treatment). The sample was selected using a purposive sampling technique totaling 10 people and divided into two groups (experimental group and control group). Results: The results showed that the calculation of hypothesis testing after analyzing the data obtained a value of t-count (5.817) > t-table (1.86). This showed that there was an effect of using the continued use of leaf extract as a shampoo for reducing dandruff on the scalp. Conclusion: The use of G. procumbens leaves extract as shampoo can reduce dandruff.

Keywords
Gynura procumbens leaves extract, reduction of dandruff

Topic
Pharmacology

Link: https://ifory.id/abstract/uwNW2TY7Mb4x

Corresponding Author
Dwi Ayu Oktaviani

Institutions
a) Biology Education, Faculty of Mathematics and Science, State Univesity of Jakarta
Jalan Rawamangun Muka RT 11 RW 14, Jakarta Timur, Indonesia, 13220
*rusdi[at]unj.ac.id

Abstract
The purpose of this study was to identify direct and indirect effect from hemoglobin level and working memory to learning outcome of cell subject matter. The samples of this research were 52 male students. This research was conducted at SMAN 22 Jakarta in July-August 2018. The level of hemoglobin was measured by cyanmethemoglobin method from HemoCue device, working memory was measured by questionnaire, and learning outcome by achievement test. Data was analysis with path analysis. The results showed that there was direct effect from hemoglobin level to working memory, direct effect from hemoglobin levels to learning outcome, and direct effect from working memory to learning outcome. There was indirect effect from hemoglobin levels to learning outcome through working memory. The effects were highly significant. It can be concluded there were direct effect from hemoglobin level and working memory to learning outcome.

Keywords
Hemoglobin, learning outcome, working memory

Topic
Biology

Link: https://ifory.id/abstract/2TuWBA9maD7F

Corresponding Author
Husni Husin

Institutions
a) Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia
b) Graduate School of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia
*husni_husin[at]che.unsyiah.ac.id

Abstract
Study of the mercury (Hg II) removal from aqueous solution has been investigated by adsoprtion using a low-cost bentonite nanoparticle. The nano-bentonite adsorbent was prepared by heating method at temperature of 400 Celcius. The activation was carried out by immersing natural bentonite in sodium hydroxide. The resulting powder was heated in the present of nitrogen gas as an activator agent. The bentonite sample was characterized by means of Fourier Transform Infra-Red (FTIR), Scanning Electron Microscopy (SEM), and X-Ray Diffractometer (XRD). The prepared bentonite had a heterogeneous surface with a particle size of 300 nm. The nano adsorbent was tested in the absorption of synthetic Hg(II) solution which concentration varied from 5 to 120 ppm with 0.1 gram absorbent and volume of 100 ml. The adsorbed amount of Hg(II) was analyzed using Atomic Absorption Spectroscopy (AAS). The adsorption capacities were fully fit with Freundlich and Langmuir isotherm models. It was found that the adsorption process followed the Freundlich isotherm model with and adsorption capacity of 6.086 mg/g. Therefore, we conclude that nano-bentonite can be a potential low-cost adsorbent for removal of mercury in water.

Keywords
Bentonite; Mercury solution; Adsorbent; Freundlich Isotherm

Topic
Chemical Engineering

Link: https://ifory.id/abstract/XwLJDa49NAPr

Corresponding Author
Halimatus Sadiyah

Institutions
(a) Biology Education Department, State University of Jakarta, Jalan Rawamangun muka, Jakarta 13220, Indonesia.
*adesuryanda[at]yahoo.com

Abstract
The development of learning media is inseparable from the rapid development of technology. The purpose of this study was to develop a learning media for biology practicum guides in the form of smartphone applications. This research was conducted using the ADDIE model (Analysis, design, development, implementation, and evaluation). The media feasibility test obtained an assessment of 90.28%, material experts 87.75%, biology teachers 91.37% and 88.46% students with very good interpretations. The increase in psychomotor ability test obtained a gain value of 0.49, which means there is an increase in psychomotor abilities of students with a moderate category. The conclusion obtained is that the application of the biology practicum guide has been successfully developed and is suitable for use in learning.

Keywords
smartphone, laboratory manual, learning media.

Topic
Biology

Link: https://ifory.id/abstract/6d7fXRNG8ZHD

Corresponding Author
Enung Siti Nurhidayah

Institutions
1Master Program in Computational Science, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl.Ganesha No. 10, Bandung, West Java, 40132, Indonesia
2Division of Analytical Chemistry, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung, West Java, 40132, Indonesia
3Department of Chemistry Education, UIN Sunan Gunung Djati Bandung, Jl. Cimincrang, Cimenerang, Panyileukan, Bandung, West Java, 40292, Indonesia
4Division of Physical and Inorganic Chemistry, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung, West Java, 40132, Indonesia

*corresponding author: atthar[at]compscience.itb.ac.id

Abstract
NBO and RDG analysis of inclusion complex between R/S-omeprazole (OMZ) enantiomer and β-cyclodextrin (CYD) have been carried out to elucidate the interaction between them in order to understand the performance of β-cyclodextrin for the separation of omeprazole enantiomer. NBO analysis results showed that the inclusion complex of R-omeprazole with β-cyclodextrin is more stable than the inclusion complex of S-omeprazole with β-cyclodextrin, in which the total value of the stabilization energy (E(2)) caused by hydrogen bonding in the inclusion complex of R-omeprazole with β-cyclodextrin is 150.22 kcal/mol and in the inclusion complex of S-omeprazole with β-cyclodextrin is 115.62 kcal/mol. From RDG analysis results, beside hydrogen bonding, there are also Van der Waals interaction and steric effect on the interaction between omeprazole enantiomer and β-cyclodextrin.

Keywords
NBO, RDG, inclusion complex, enantiomer, omeprazole, β-cyclodextrin.

Topic
Chemistry

Link: https://ifory.id/abstract/mwt2xkjHBCY3

Corresponding Author
Bambang Prasetya Adhi

Institutions
(1,2) Department of Informatics Education Faculty of Engineering Universitas Negeri Jakarta
*bambangpadhi[at]unj.ac.id

Abstract
The development of the research world is increasingly rapidly proven by the integration of supporting technologies, including applications for referral processes, data processing, online journals, journal indexers, and many other applications. Some of these applications certainly apply web technologies including semantic web. To find out which areas of interest and research are being or have been worked on, a biography is often made to provide explanations relating to the research area, the lecturers personal research, awards and several other things. But unfortunately the information displayed is only informative, so the data cannot be reprocessed or has more meaning and has interrelationships with one another. The results of the study were in the form of a short biography in the form of a knowledge biography using biography ontology designed and implemented into the information system. This biography information system will provide interrelated information based on both academic and personal data. The information displayed later can also be downloaded, taken on other systems using certain data formats, both for institutions, ministries and other purposes.

Keywords
Semantic Web; Knowledge Biography; Biography Ontology; Biography Information System

Topic
Computer Science

Link: https://ifory.id/abstract/nUxgd6u9DWjR

Corresponding Author
Shofiyatun Nurlaili

Institutions
1Department of Primary Education, Universitas Pendidikan Indonesia, Jl.Dr. Setiabudi 229, Bandung 40154, Indonesia
2Department of Civic Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi 229, Bandung 40154, Indonesia

Abstract
This research was conducted based on the lack of students conceptual understanding of ecology and the environment related to water cycle material. This material is considered important to be analyzed because it relates to life that occurs in the community. The purpose of this study was to give alternative an instructional need for students conceptual understanding of the water cycle that uses a Computer Aided Instruction (CAI) based on learning. The multimedia-based CAI application used by the researcher to understand the concept of the water cycle is implemented on laptops or desktop computers used Windows operating system. The subjects of this research were three students average 11-13 years old. The instruments used were observation, mini-interviews, and tests. The results of this study indicate that understanding students concepts of the water cycle are still lacked and many misconceptions can be seen from the results of student work when drawing water cycles. Furthermore, the use of CAI based learning is needed to help students conceptual understanding of the water cycle material through multiple-choice questions and drawing the water cycle correctly.

Keywords
Computer Aided Instruction, understanding students concepts, water cycles

Topic
Biology

Link: https://ifory.id/abstract/N9LQgd8rkqYH

Corresponding Author
Kebri Kein Moudy Pajung

Institutions
Universitas Pendidikan Indonesia
Bandung, Indonesia

Abstract
Expert system To analyze the professional competency standards of vocational teachers for national education quality based on industry standards and professional competence, it is necessary to evaluate each time or based on a certain period. With the existence of a system that will measure teacher competency skills with the fuzzy logic analysis method will describe the ability of the knowledge and skills of the teacher and will provide training recommendations based on the teachers weak points.

Keywords
professional competence, expert systems, high school teachers, fuzzy logic

Topic
Information Engineering

Link: https://ifory.id/abstract/7N3Lp9rJWGT4

Corresponding Author
Halimatus Sadiyah

Institutions
(a) Biology Education Department, State University of Jakarta, Jalan Rawamangun muka, Jakarta 13220, Indonesia.
*nurmasari_sartono[at]yahoo.com

Abstract
The limited information that is only in the form of text and images in the practicum guide that already exists causes various obstacles experienced by students in biology labs. The smartphone application comes with the potential to combine information in the form of text, images, videos and quizzes as a medium for student learning. This study aims to see the effect of the use of smartphone biology practical guide applications on the ability of science processes of students using quasi-experimental methods with pre-post-test control group design research design. The conclusion obtained is that the use of biological practicum guidance application has a positive influence on students scientific process abilities.

Keywords
laboratory manual, smartphone, psychomotoric, outcome.

Topic
Biology

Link: https://ifory.id/abstract/DCPqVHvkTBA6

Corresponding Author
sri widiyanesti

Institutions
telkom university

Abstract
This research object on PT. Dirgantara Indonesia is the aerospace industry that focusing on production light aircraft or remote airplane, one of product PT. Dirgantara Indonesia N212-400 that have five ordered by Phillipine and Veitnam had a delay project. In this qualitative research with research approach is case study approach in identification causative factor of project delay, with the purpose of study is descriptive research and the process data validity and reliability using triangulation method. The data analysis in this research is the productivity of project, potential failure mode of the project using FMEA (Failure Mode and Effect Analysis) and fishbone diagram to determine the cause and effect the project delay. Result of the productivity during the project N212-400 is 40% and 40% productivity in aerospace industry is in the below average of aerospace industry that are 70% - 80%. By using fishbone and FMEA is identify the cause of delay and the potential failure of delay project N212-400 the main factor of project delay based on fishbone and FMEA is machine and material process. Both of key factor have high score of RPN (Risk Priority Number) that is 810, and this process should be give priority improvement.

Keywords
Aerospace, Delay Project, Fishbone Analysis, Productivity, Failure Mode and Effect Analysis

Topic
Industry Engineering

Link: https://ifory.id/abstract/g4emk8YxbrwZ

Corresponding Author
Ratna Komala

Institutions
a) Department of Biology, Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta, Indonesia

Abstract
One group of organisms that can be used as bioindicators of water quality is benthos, these organisms are spread over several habitats and also in coastal areas, one of which is in the seagrass ecosystem on Bira Island, located in the Kepulauan Seribu Jakarta. The aim of this study was to determine the dynamics of benthic population as an illustration of the environmental conditions on Bira Island for 6 months of observation. The method used in this study was descriptive with survey design. Data collecting by purposive sampling with the transect method at 3 observation stations. The data were analyzed descriptively through the calculation of abundance, diversity and dominance. The results of the study identified 23 species of benthos included in the 3 phylum with the largest to lowest composition represented by molluscs, arthropods and echinoderms phylum. The benthic population fluctuates and shows a pattern of decreasing trends every month during observation. The abundance of the highest species of each phylum is represented by Turicula javana (Mollusc), Portunus sp (Arthropods) and Holothuria atra (Echinoderms. The Species Abundance based on the observation station shows that the highest abundance is at station 1, followed by station 2 and the lowest is station 3. Benthos diversity at each station is in the moderate category, and there is no dominant species

Keywords
Benthos; Bira Island; Seagrass; Kepulauan Seribu

Topic
Biology

Link: https://ifory.id/abstract/gKb4dhqMWTzZ

Corresponding Author
Sandey Tantra Paramitha

Institutions
Universitas Pendidikan Indonesia

Abstract
The aim of this study was to determine the effect of variations in practice and conventional exercise as well as the motivation to increased agility. Research was conducted on the athlete club futsal X-Niners Bandar Lampung. This study uses the method of treatment by level 2 x 2. The sample consisted of 28 athletes. The data analysis technique is a two-track analysis of variance (ANOVA) and then followed by Tukeys test at a significance level α = 0.05. The results of this study indicate that (1). Values increase agility in the treatment of exercise variations (A1) is higher than the conventional exercise (A2) in athletes futsal club X-Niners Bandar Lampung. (2) There are significant interaction between exercise variations (A) and motivational training (B) To increase agility athlete club futsal X-Niners Bandar Lampung. (3) Values increase agility on exercise treatment exercise motivation high variation (A1B1) is higher than the conventional exercise exercise motivation high (A2B1) in athletes futsal club X-Niners Bandar Lampung. (4) Values increase agility on exercise variation motivational exercises (A1B2) lower than the conventional exercise motivation exercise (A2B2)in athletes club futsal X-Niners Bandar Lampung.

Keywords
exercise variation and conventional exercise; motivation drills; agility

Topic
Sport Science and Technology

Link: https://ifory.id/abstract/DxwY4apfjL7A

Corresponding Author
Yusmaniar Yusmaniar

Institutions
 1Departement of Chemistry Faculty of Match and Science Universitas Negeri Jakarta, Jln Rawamangun Muka, Jakarta Timur 13220, Indonesia

Abstract
This study aims to determine the effect of Poly vinyl alcohol (PVA) and Soluble soybean polysaccharides (SSPS), and to characterize it (water resistance and biodegradation test). This research was done by blending (mixing) PVA, SSPS, acetic acid, and maleic anhydride. From the results of infrared spectrum analysis on plastic films showed peaks in the area 1000-1100 cm-1 which indicates the absorption of polysaccharides. This plastic has an optimum water resistance of in the ratio between 1:1 w/w (SSPS:PVA). Optimum biodegradation test results in the ratio of 1:1 w/w (SSPS:PVA). Based on the result of the research, it can be concluded that water resistance and biodegradation reach optimal on composition 1:1 w/w (SSPS:PVA).

Keywords
Soluble soybean polysaccharides (SSPS), poly vinyl alcohol (PVA/PVOH), biodegradable plastic

Topic
Environmental Engineering

Link: https://ifory.id/abstract/zRdg4jNJbZEn

Corresponding Author
winda setya

Institutions
a) Department of Physic Education, Faculty Tarbiyah and Teacher Training, UIN Sunan Gunung Djati Bandung
Jl. Soekarno-Hatta no. 750, Gedebage, Bandung
*suratwindasetya[at]uinsgd.ac.id

Abstract
Light Dependent Resistance (LDR) is one type of resistor whose resistance value is influenced by the intensity of light received by it. This study aims to measure the amount of resistance in each color of light measured in the LDR. The research method is carried out by making a measurement device in which a light source that is parallel to the LDR is placed, between which a color layer is inserted which will change the white light from the lamp to the color light according to the color layer used. Variation in the distance (x) between lights and LDR causes greater resistance. The results of this study indicate that when the distance of 0.52 m the amount of red resistance is 44000 ± 0.5 Ω with an error 0.00114%, yellow 48300 ± 0.5 Ω with an error 0.00114%, green 96120 ± 26.29 Ω with an error 0.02735%, blue 114910 ± 10.54 Ω with error 0.00917 %, purple 129150 ± 47.79 Ω with an error of 0.037%. These results show an inversely proportional between resistance and light intensity.

Keywords
Resistor, Light Dependent Resistance, Light Intensity, Development, Measurement

Topic
Physics

Link: https://ifory.id/abstract/VTQWGuEb3pvm

Corresponding Author
Ratna Komala

Institutions
a) Department of Biology , Faculty of Mathematics and Natural Science, Universitas Negeri Jakarta , Indonesia
b) Student of Magister Degree, Departement Biology, Bogor Agriculture University, Bogor Indonesia

Abstract
Papilio memnon memnon is one of the butterflies groups of the Papilio clan in West Java, Indonesia. This study aims were to determine the morphology, behavior, and life cycle of the P. m memnon butterfly. The research method used is descriptive with survey techniques and literature studies. This study aims to determine the morphology, behavior, and life cycle of the P. m memnon butterfly. The research method used was descriptive with survey techniques and literature studies. Data about morphology, duration of life, and behavior at each development phase during the P. m memnon butterfly life cycle were analyzed descriptively based on direct observation. The results showed the egg phase of P. m. memnon takes about 7-8 days to the phase instar1 of the larvae. The average total time needed in the larval phase is around 23 - 45 days to the pupa phase. The Pre-pupa phase lasts 1-2 days, while the pupa phase lasts 2-3 weeks. P. m. memnon performs the larval phase as many as 5 stages of instar. Food eaten by first phase instar 1 of larvae is the eggshell, which is useful for insect growth and helps eliminate evidence of eggs from parasitic attacks. At each phase of development, the larvae eat the outer skin to obtain additional energy to support growth.

Keywords
Life cycle; larvae; pre-pupae; imago; Papilio memnon

Topic
Biology

Link: https://ifory.id/abstract/Lkj9DnrJ4mqb

Corresponding Author
Anas Ahmadi

Institutions
Indonesian Language & Literature, Universitas Negeri Surabaya, Surabaya, Indonesia
anasahmadi[at]unesa.ac.id

Abstract
The current trend in the issue of writing research is interdisciplinary. Therefore, in this study linking interdisciplinary studies between the study of science, psychology, and writing. In this regard, this study aims to develop and explore the development of the Psychowriting Types Indicator (PTI) Software in creative writing. This research was initiated in 2015 by developing the book Psychowriting (2015). Furthermore, this year, software developed Psychowriting Types Indicators (PTI). This research is urgent to develop and recognize personality types in writing which have not been "touched" in research writing. The method used in this study is descriptive qualitative. The data analysis technique uses three stages, (1) the stage of developing the Psychowriting Types Indicator (PTI) Software, (2) the stage of the Psychowriting Types Indicator (PTI) practice, (3) the analysis phase, (4) the data presentation stage, and (5 ) inference stage. The research respondents were 42 students of the Indonesian Language and Literature Department who programed the Writing Skills course. The results and discussion of the study indicate that the personality type in writing is divided into (1) the type of personality of the abstractive writer is 26 percent; (2) the type of melancholis writer personality amounts to 10 percent; (3) intuitive personality types as much as 31 percent; (4) thinker personality types totaling 5 percent; (5) explanatory personality types totaling 9 percent; (6) masculine personality types totaling 7 percent; (7) feminist personality types totaling 6 percent; (8) expressive personality types totaling 6 percent. Conclusion shows that the highest personality type in writing is the intuitive category, while the lowest type is the type of thinker category

Keywords
software, psychowriting type indicators, writing

Topic
Computer Science

Link: https://ifory.id/abstract/HXzGVnZ2FgvR

Corresponding Author
Rian Andrian

Institutions
(1) Universitas Pendidikan Indonesia, Indonesia
(2) UIN Sunan Gunung Djati Bandung, Indonesia

Abstract
Pathways admissions line independent achievement sport especially badminton was held at UIN Sunan Gunung Djati in Bandung aims to help athletes who want to proceed to a higher level and change the paradigm of athletes on the importance of continuing education to a higher level in accordance with the criteria specified. The process of determining the acceptance still uses the old system with penginputan in Microsoft Excel that sometimes cause confusion. To help determine a candidate independent of badminton accomplishment line it then required a decision support system. Methods that can be used for decision support system by using Analytical Network Process (ANP), with this method of calculation is done by doing a comparison between the criteria and alternatives will then produce supermatriks, then do the weighting process will determine the athletes who deserve to go to UIN Sunan Gunung Djati in Bandung. This research uses the 9 prospective registrants (alternate) as a sample after a comparison calculation manually and the application of the methods itself then acquired a relative error of 0%. So the system has been made is said to be worth used relative error sebeb less than 50%.

Keywords
Badminton Athletes, Scholarships, Decision Support System, Analytical Network Process Method, UIN Sunan Gunung Djati Bandung

Topic
Computer Science

Link: https://ifory.id/abstract/PECJf2DcWF3L