Indonesia Conference Directory

Corresponding Author
Catur Setyawan Kusumohadi

Institutions
Universitas Negeri Jakarta

Abstract
The aim of this project is to develop water tank that could support for firefighter motorcycle. The firefighter motorcycle was designed to be used in densely populated areas with very narrow accesses. In the process of design, the tank dimension, maneuverability, stability, and attachment method become the factor that were put into consideration. External condition in the form of motorcycle power and narrow access were the factors that also considered in choosing the criteria of water tank for fire suppression. VDI 2221 method was used to optimized the design.

Keywords
water tank , VDI 2221, firefighter motorcycle

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/LvgkEVYFNp2A

Corresponding Author
Dewa Ayu Putri Sri Masyeni

Institutions
Faculty of Medicine and Health Sciences, University of Warmadewa

Abstract
In developing countries the work-related Musculoskeletal Disorders (MSDs) is mostly occurs. The research of Indonesian Health Department in 2005 was found out most MSDs was due to worked-related disorders in their job. The aims of this study was to find out the differences of MSDs between the taxi drivers and taxi bike in Kuta District. The design of this study was cross sectional which was analyzed. There was 60 subjects were involved in this study which age ranged 25-50 years old and they had experiences more than one year. The MSDs was measured by Nordic Body Map quitionnaire with modified Likert scale. Data was analyzed by SPSS 23. The result were showed as follow: the average of MSDs of taxi drivers and taxi bike were 43,30±6,23 and 46,60±5,30, respectively. The difference of both above was significant difference (p<0,05). It was concluded that there was significant difference between MSDs of taxi drivers and taxi bike.

Keywords
Taxi driver, taxi bike, musculoskeletal disorders, Nordic body map

Topic
Biology

Link: https://ifory.id/abstract/2pW4cBfUhazZ

Corresponding Author
I Gede Suranaya Pandit

Institutions
(a,*)Faculty of Agriculture, Universitas Warmadewa, Denpasar, Indonesia
suranaya_pandit[at]yahoo.com
(b)Post Graduate Program, Universitas Warmadewa, Denpasar, Indonesia
(c) Faculty of Medicine and Health Science, Universitas Warmadewa, Denpasar, Indonesia

Abstract
Tilapia fish that is boiled with Balinese spices or it is also called by Balinese people as nila nyat nyat, exactly is one of the most popular Balinese dishes because it is very tasteful. But until now, none has done packaging and storing it at cold temperature for resale. The aim of this study is to understand the interaction among the differences in type of packaging and storage time on quality of tilapia fish that is boiled with Balinese spices. We used factorial completely random design with four replications, first factor is type of packaging, that is consisted of 2 levels: A1=Styrofoam box and A2=Plastic box, second factor is storage time, that is consisted of 3 levels: B1=0 day, B2=3 days, B3=6 days. Objective observation includes water content, protein content, total volatile bases, total plate count, whereas subjective observation or organoleptic such as appearance, texture, odour, and taste. The result of the study showed that there was no interaction between the type of packaging and storage duration on the quality of tilapia fish that is boiled by Balinese spices. Based on objective observation, storage time at cold temperature still maintain good quality of tilapia until sixth day.

Keywords
Type of packaging, storage time, tilapia, nila nyat nyat

Topic
Biology

Link: https://ifory.id/abstract/x6ZWPCctM4U8

Corresponding Author
Abdul Syukur

Institutions
*1 Postgraduate Program and Department of Sciences Education,
2 Faculty of Teacher Training and Education, Mataram University, Indonesia;
Jalan Majapahit No 56 Mataram Nusa Tenggra Barat; Phone: +62 370 623873
*12Corresponding author: Abdul Syukur - Email: syukurbiologi[at].unram.ac.id.

Abstract
Mangrove is a plant species that grow in a unique environment and serve as breeding, spawning, hatching, and nursery grounds for many marine species. However, the damage of mangrove has a negative impact on the diversity of fauna associated. This study aims to prove and evaluate mangrove replanting of fauna diversity on the South Coast of East Lombok.. Data collection were done through observation, surveys and quadrant methods The data were further analyzed to detemine Diversity Index (H) and Dominance Index (D). The analysis showed that the mangrove in Jor Bay has the highest index value of fauna diversity, is 2.762 and the lowest is Lungkak that is 2.146. The mangrove other locations such as Tanjung Luar have a value of fauna diversity index of 2,567, Kedome 2, 361 and Ekas Bay 2,457. However, the index value is highest dominance Ekas bay of 0.176 and the lowest was 0.097 Kedome. The conclusion of this study is that mangrove planting has been successful in increasing the diversity of fauna associated with mangroves on the south coast of East Lombok. Therefore, efforts to maintain the results of mangrove revegetation are a very important part of mangrove conservation.

Keywords
Replanting of Mangrove, Diversity of fauna and Maintenance of mangrove

Topic
Biology

Link: https://ifory.id/abstract/4tcmwgqAPV6r

Corresponding Author
Puji Astuti

Institutions
Universitas Pendiidkan Indonesia

Abstract
One step lunge is technique that involve both speed and accuracy of an attack to score points in a fencing competition. An effective and efficient technique in order to achieve points and victory is slightly important to be examined. The methodology used in this present study was experimental method. Fencers from Purwakarta consisting 22 people were used as the population and 4 athletes as samples. The instrument used for the study was Kuhadja Fencing Test in order to measure the attack results. Based on the result, it is found that there is no significant influence. The minimum sample is likely to be the reason of the insignificant result. However, by looking at the training process and graphical data of the average scores of the two groups, found that the influence of one step lunge technique is significant enough. Based on the analysis of statistical data, there are an average pre test 43,7 and an average post test 74,5 then the data is normal with an increase of 30,8 Based on t test analysis produces t count= 3,1 > t table= 2,353. research proves that a one-step technique is effective and efficient at attack, and increases motor coordination in attacks.

Keywords
Attack Result, Experiment, Fencing, One Step Lunge, Sport Coaching Education

Topic
Sport Science and Technology

Link: https://ifory.id/abstract/Pm9jx8uqnpeA

Corresponding Author
Havidh Pramadika

Institutions
(a)Petroleum Engineering Departemant, Univesitas Trisakti
*havidh[at]trisakti.ac.id

Abstract
Indonesian oil and gas needs continue to increase, all of which are inversely proportional to oil and gas production which is always decreasing, one of the efforts to increase production is by EOR injection, one of the EOR injections is polymer injection. In this study we will use FP3300S polymer with a concentration of 500ppm, 750ppm, 1,000ppm, 1,250ppm, 1,500ppm, 1,750ppm, 2,000ppm, 2,250ppm and 2,500ppm. The purpose and objective of this study was to determine the effect of polymer concentration on increased viscosity, determine effect of polymer concentration on polymer screening (compatibility, filtration, screen factor, thermal stability), and to find out how the results of polymer injection, the higher the study found. polymer concentration the higher the viscosity where the highest at the polymer concentration of 2,500ppm with 19,38cp, the viscosity needed by the polymer as the injection fluid is the polymer viscosity greater than 2X the oil viscosity to be injected, where the oil viscosity is 5,2cp. then while in polymer screening it is found that the higher polymer concentration is not necessarily good for screening polymers, and polymer inclusions have been shown to increase recovery factor, recovery factor obtained at 51.5% water injection and polymer injection is 23.1%, before injection really need to be on do screening first, in order to get the most optimal concentration to be injected.

Keywords
Consentration, Polymer, Injection.

Topic
Industry Engineering

Link: https://ifory.id/abstract/CeP6u7NJp4vR

Corresponding Author
Tazkiaturrizki Tazkiaturrizki

Institutions
Environmental Engineering Departement, Faculty of Landscape Architecture and Environmental Technology, Universitas Trisakti, Jalan Kyai Tapa No.1, West Jakarta 11440, Indonesia
*tazkiaturrizki13[at]trisakti.ac.id

Abstract
Granular Activated Sludge - Sequencing Batch Reactor (GAS- SBR) has the ability to treat wastewater with high organic pollutant. The aims of this study to determine the effect of aeration time to remove parameters of COD, BOD, TSS and Total Ammonia in chicken slaughterhouse wastewater using GAS-SBR. The artificial wastewater treatment used as represent of chicken slaughterhouse wastewater in this processing is artificial wastewater made from a mixture of sucrose, KNO3 and KH2PO4. GAS formation was form by reacting activated sludge with slow stirring at 20 rpm. SBR has a total work volume of 45L which is operated in 5 stages (fill – 0.25 hours, aeration time varied for 2 hours, 4 hours and 6 hours, settle - 0.25 hours, draw - 0.25 hours and idle - 6 hours). The results showed that the variation of aeration time is optimum at 2 hours with the efficiency of COD removal was 72.83% (influent of 6016 mg/L), BOD was 72.23% (influent of 3614 mg/L) and TSS was 59.8% (influent of 2.8 mg/L). For total ammonia removal, the variation of aeration time is optimum at 4 hours resulted with efficiency of 65.85% (influent of 2.29 mg/L)

Keywords
GAS-SBR, chicken slaughterhouse, wastewater, aeration time

Topic
Environmental Engineering

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

Corresponding Author
Nisa Rahmaniyah Utami

Institutions
Universitas Pendidikan Indonesia

Abstract
The background of this research is students who are less interested in the theory of making cakes, gateuxes, and tortenes. Students prefer and understand practice. The students feel bored in the theory of making cakes, gateux and torten, because there are many things students have to learn and memorize, as well as the teaching methods carried out by educators still using the old learning model so the students in the class become boring and tense. To overcome these problems, we need a learning model that is appropriate and relevant to the conditions of the students. This study aims to: (1) obtain information on differences in learning outcomes between students who use the ARIAS learning model and students taught by using a direct learning model in making cakes, gateux and torten at 3 Vocational Highschool, Bogor. This research is an experimental research with a quantitative approach, in which the research sample is divided into two classes, namely: (1) class XII Patiseri 1 which is taught using the ARIAS learning model; and (2) class XII Patiseri 2 which is taught using the direct learning model. The study found: (1) The average score of cognitive learning outcomes, students using the ARIAS learning model were 80, significantly higher than using the direct learning model was 75, in making cake, gateux and torten at 3 Vocational Highschool, Bogor. Researchers suggest: (1) the ARIAS learning model can be used as an alternative in creating an interesting learning in explaining material.

Keywords
ARIAS Learning Model, Direct Learning Model, Learning Outcomes, Cake, Gateaux and Torten,

Topic
Information Engineering

Link: https://ifory.id/abstract/NQU38mjcqrXV

Corresponding Author
Asep Rohayat

Institutions
Biology Department, Institut Pendidikan Indonesia

Abstract
Abstract Additives are chemical compounds added to preserve food. There are two types of additives; natural and artificial additives. The durability of wet noodles is relatively lower compared to other staple food. There are various methods to preserve wet noodles. One of which is the addition of natural additives. Natural additives are chosen because they are safer than artificial additives which are more precarious to human health. The natural additives used are carrots because they contain B-carotene compounds functioning as antioxidants that reduce and or deactivate free radical attacks and ROS (Reactive Oxygen Species) on food caused by microorganisms. These processes increase the durability of wet noodles. The research aimed to determine the effect of B-carotene content in carrots as a natural additive for wet noodle preservation. The method used was an experiment with B-carotene concentration variations in carrots; 0%, 20%, 40%, 60%, and 80%. From the results, it was found that at the 60% concentration of B-carotene, the durability of wet noodles reached the maximum 4 day. This fact showed that the addition of high concentration B-carotene will affect the durability of wet noodles. And carrots can be used as natural additives in preserving wet noodles.

Keywords
B-carotene, Additives, durability, wet noodles

Topic
Biology

Link: https://ifory.id/abstract/HtJAbXUKfkv6

Corresponding Author
Chevi Ardiana

Institutions
Biology Department, Institut Pendidikan Indonesia

Abstract
Abstract Bintaro fruit contains a lot of organic compounds that cause mortality of a number of insects including cockroaches. The reasearch aims to determine the effect of various concentrations of bintaro fruit (Cerberra manghas) as bioinsecticides, and to know the effective concentration to achieve mortality from Periplaneta americana cockroaches . The method used in this study is a pure experimental method that uses Completely Randomized Design (CRD) with 5 treatments and 5 repetitions, with different concentrations namely concentrations of 0%, 10%, 20%, 30%, and 40%, so that the sum of all a sample of 125 Periplaneta americana cockroaches. Based on the results of statistical tests using the ANOVA test and Scheffe further test, the treatment of the concentration of bintaro fruit extract (Cerberra manghas) 40% significantly affected the Periplaneta americana cockroach compared with other treatments and in terms of LC50 values, is the mortality rate had reached 50% in observations 5 x 4 hours and more mortality than other concentrations.

Keywords
Bintaro Fruit Extract (Cerbera manghas), Cockroach Mortality (Periplaneta americana)

Topic
Biology

Link: https://ifory.id/abstract/KP4xLfB6gjhE

Corresponding Author
Arasy Fahruddin

Institutions
a) Mechanical Engineering Department, Universitas Muhammadiyah Sidoarjo, Jl. Raya Gelam No.250, 61271, Sidoarjo, Indonesia
*arasy.fahruddin[at]umsida.ac.id

Abstract
The Indonesian region has abundant alternative energy sources that can be used to meet electrical energy needs. One potential alternative energy source is water energy that can be converted into electrical energy with a water turbine. Water turbines are generally one stage, whereas water energy on the output side is still quite large. In this study, experiments were made using a two-stage micro water turbine model with blade angle variations on the second stage turbine. The type of turbine used in this study is a crossflow turbine with a vertical shaft. The results show that the 45 degree blade angle on the second stage turbine can increase the second stage turbine rotational speed, and also increase the first stage turbine rotational speed. So that the total power of the turbine increases up to 29% compared to 15 degrees blade angle. This indicates that the appropriate selection of the second stage turbine blade angle will significantly affect the total turbine power and its efficiency.

Keywords
Blade angle; Two-stage; Water turbine; Crossflow turbine

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/VwjqkCetgn4B

Corresponding Author
Anita Eka Putri

Institutions
a) Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
*vivi[at]sci.ui.ac.id
b) Departement ofPhysicsEducation, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta Timur 12130, Indonesia

Abstract
The photocatalytic performance of Zinc oxide nanorods (ZnO NRs) still needs to be improved. One method that could be used to enhance the photocatalytic activity of ZnO NRs is by adding the noble metals nanoparticles and transition metals dopings. In this work,we synthesized nanocomposites of ZnO NRs/Au and Co-doped ZnO NRs/Au nanoparticles (NPs) by using ultrasonic spray pyrolysis and hydrothermal methods on the glass substrate. The microstructural, morphological, and optical properties of both nanocomposites were characterized by using XRD, FESEM and UV-Vis and PL spectroscopy. The photocatalytic performance was evaluated through the degradation of methylene blue (MB) under UV radiation. The results show that the pure ZnO NRs only degrades 28.8%, while the ZnO NRs/Au NPs could degrades 37.3%. Furthermore, the Co doped ZnO NRs/Au NPs also increases the degradation rate up to 46.5%. Based on these results, we conclude that the presence of Au on ZnO NR-s surface could enhance the photocatalytic activity due to its role as an electron sink that reduces the recombination rate of electrons and holes while the incorporation of Co in ZnO NRs could also enhance the number of crystal defects that beneficial for enhancing the photocatalytic activity of ZnO NRs.

Keywords
ZnO NRs/AuNPs nanocomposite; Co-doped; electron sink; photocatalytic activity; recombination

Topic
Material Science

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

Corresponding Author
Tety Sudiarti

Institutions
UIN Sunan Gunung Djati Bandung

Abstract
The study of Polyethylene Oxide (PEO) activity as a corrosion inhibitor in 1% NaCl electrolyte solution was carried out by the Wheel Test method with variations in concentration and temperature. The results showed that polyethylene oxide (PEO) had the optimum inhibitory activity at a concentration of 16 ppm, with inhibition efficiency of 80.15% at 25˚C. Polyethylene Oxide has adsorption properties which are in accordance with the Langmuir adsorption isotherm with free adsorption energy of 21.385 kJ / mol. The results of electron microscopy (SEM) analysis showed that polyethylene oxide could inhibit corrosion rates with iron surfaces that had fewer pores than without inhibitors.

Keywords
corrosion inhibitor; Polyethylene Oxide; Wheel Test; SEM

Topic
Chemistry

Link: https://ifory.id/abstract/gGpTd2Vkf3Cu

Corresponding Author
leni sri mulyani

Institutions
Biology Department, Institut Pendidikan Indonesia

Abstract
Abstract Cheese is commonly derived from cows milk by separating whey and curds through a fermentation process, involving both aerobic and anaerobic microbial activities. Cheese making is done through a process called milk coagulation with the help of rennet. However, rennet is not easily obtained and rather expensive. Fortunately, rennet can be substituted by cermai fruit extract in this milk coagulation process. The present study aims at determining the concentration of cermai fruit extract thatcan optimally speed up the clumping process of FH cattle milk in cheese making. The extracts were obtained through smooth blending, filtering, and squeezing. Five experiments were conducted using extracts with different concentrations: 50%, 60%, 70%, 80%, and 90%. The results show that 90% is the most optimum concentration of cermai fruit to help the coagulation process in cheese making. The milk coagulated in the average time of 5.4 minutes. To conclude, cermai fruit extract could determine the milk coagulation process time period and can be used as a substitute for rennet

Keywords
concentration, cermai fruit extract, cows milk.

Topic
Biology

Link: https://ifory.id/abstract/BWZh23gb7zLy

Corresponding Author
Aniesa Puspa Arum

Institutions
State University Of Jakarta, Jl Rawamangun Muka, East Jakarta
aniesa.puspa[at]gmail.com

Abstract
The purpose of this research is to find the effect of “contextual teaching and learning (CTL) model” and “achievement motivation” on student engagement in make-up artistry course. This research used experimental method with factorial design 2 x 2. The main variable of this design is CTL model which is differentiated between CTL-group model and CTL-individual model. The attribute variable is achievement motivation which is differentiated between high achievement motivation and low achievement motivation. The sample of this research were 32 students coming from two classes which were selected randomly. Then the sample were devided into 4 cells with 8 students of each from the questioner of achievement motivation measurement. The treatment used CTL model and the last treatment to find the result or change attitude, used student engagement questioner measurement. The result of the study was analyzed with two-way analysis of variance (ANAVA) and followed by Tukeys test.

Keywords
contextual teaching and learning (CTL) models, make-up artistry and achievement motivation

Topic
Sample Topic

Link: https://ifory.id/abstract/Uqg3u4bTRvjm

Corresponding Author
Apriandi Rizkina Rangga Wastu

Institutions
a) Petroleum Engineering Department, Universitas Trisakti
*apriandi.rizkina[at]trisakti.ac.id

Abstract
The function of drilling mud is to lift drill cuttings to surface while maintaining condition in drilling hole. The purpose of this study was to determine ability to lift cutting in oil drilling wells using Cutting Transport Ratio, Cutting Concentration and Cutting Carrying Index methods. In drilling operations there are two important things must be considered in the wellbore cleaning, namely pumps and drilling mud rheology. Penetration formation layer will result in cutting due to chisel that erodes the rock so that if left unchecked it can accumulate at the bottom borehole. The speed of flow of sludge fluid is flowed, the flow pattern in circulation of sludge, and ability to lift the cutting in well are affected by mud pump to determine flow rate of pump. In addition to the value of rheology of sludge such as plastic viscosity and yield point values of mud density also affect the performance of the sludge to be a medium for lifting drill bits. Provisions on the method for lifting the cutting with the Cutting Transport Ratio method must have a value of> 90%, the Cutting Concentration method has a value of <5%, and Cutting Carrying Index has a value of 1.

Keywords
Cutting, Drilling fluid, Cutting Transport Ratio, Cutting Concentration and Cutting Carrying Index

Topic
Industry Engineering

Link: https://ifory.id/abstract/mFxBWbreq29N

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 digestive value of female garut lamb. The variables are TDN (Total Digestible Nutrien) value, Crude Fiber (CF) digestive value and Crude Protein (CP) digestive 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 TDN (Total Digestible Nutrien) value, Crude Fiber (CF) digestive value and Crude Protein (CP) digestive value.

Keywords
: Garut lamb, protein and energy balances, digestive value

Topic
Biology

Link: https://ifory.id/abstract/cr2eDUGRjKJu

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
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
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
Maulina Larasati Putri

Institutions
1) Department of Communication, Universitas Negeri Jakarta, Jakarta, Indonesia
2) Department of Communication, Universitas Negeri Jakarta, Jakarta, Indonesia
3) Department of Communication, Universitas Negeri Jakarta, Jakarta, Indonesia

Abstract
Abstract. New media that are decisive in peoples lives. Research to find out the influence of new media, brand image on consumer confidence in online products. The content of new media is the content of media messages in new media in various products. Brand image is a brand on the product or image that product and image has. Consumer loyalty is a research previously conducted by previous research by Robinson, Xian Xing and Fredick. This study uses the positivistic paradigm. Respondents of this study were Medan, Cimahi, Sidoarjo and Makassar, Instagrams new media users. Descriptive of each variable of this research is positive content media in the contents of this research. Brand images on Instagram are not very important to current trends. Brand trust in this descriptive study is positive for each indicator of this research. Consumer loyalty is the respondent of this study a positive average on each indicator of this study. The results of the study were the strong influence of media, brand image, brand trust on consumer loyalty on Instagram. The results of this descriptive study lead to positive results on each indicator. Related to the predictive regression was a positive impact on Instagram respondents consumer loyalty.

Keywords
brand image, brand trust, content media, and consumer loyalty

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/Kyx7pwPWVQf6

Corresponding Author
Arasy Fahruddin

Institutions
a) Mechanical Engineering Department, Institut Teknologi Sepuluh Nopember (ITS), Jl. Raya ITS, Keputih, Sukolilo, 60111, Surabaya, Indonesia
*arasy.fahruddin[at]umsida.ac.id
b) Mechanical Engineering Department, Universitas Muhammadiyah Sidoarjo, Jl. Raya Gelam No.250, 61271, Sidoarjo, Indonesia
c) Chemical Engineering Department, Institut Teknologi Sepuluh Nopember (ITS), Jl. Raya ITS, Keputih, Sukolilo, 60111, Surabaya, Indonesia

Abstract
Leaf shape biometric design shows promising potential as a flow field to supply air reactants in Polymer Electrolyte Membrane Fuel Cell. However, studies that discuss the dimensions of biometric flow field in detail are rarely encountered. The channel width can affect the supply of reactants, the better the supply of reactants the better the cell performance can be achieved. In this study we investigated the effect of the mother channel width on the biometric flow field towards cell performance using numerical simulations. The model is composed of 9 layers with 25 cm2 of active area. The channel dimension is varied by considering Murray theory. Simulation results show that the optimal width of the mother channel can increase power density by up to 6% compared to other variations. This increase can be achieved due to a more uniform distribution of oxygen concentration.

Keywords
Mother channel width; Biometric flow field; Polymer electrolyte membrane fuel cell

Topic
Mechanical Engineering

Link: https://ifory.id/abstract/ckJ8LEHX4wgx

Corresponding Author
Asrianti yanti

Institutions
SMA N 1 MOWEWE KAB. KOLAK TIMUR PROV. SULAWESI TENGGARA

Abstract
Motivation and physical fitness of a teacher are the most important things in improving the performance of physical education teachers, even teachers who have been certified. A physical education teacher must have good fitness to improve his performance. The purpose of this study was to determine the effect of motivation and physical fitness on the performance of physical education teachers. This study uses the path analysis method (Path Analysis). Based on calculations, the influence coefficient of motivation on teacher performance is 0.194. t-count value of 2.124> t-table of 1.984. The effect of physical fitness on teacher performance is 0.376. t-count value of 4.913> t-table of 1.984. Effect of motivation on physical fitness, amounting to 0.298. t-count value of 3.349> t-table of 1.984. The results of the study concluded that certified teacher performance in dominant physical education subjects was directly influenced positively by motivation and physical fitness. But there are still other exogenous factors that directly or indirectly affect teacher performance. Therefore, the variables in this study must be used as a reference in an effort to improve the performance of high school teachers, especially in Southeast Sulawesi Province.

Keywords
Motivation and Physical Fitness

Topic
Sport Science and Technology

Link: https://ifory.id/abstract/vg69M2zJ7jPe

Corresponding Author
Gunawan Gunawan

Institutions
a) Universitas Negeri Jakarta
a)Faculty of Teacher Training and Education, University of Tadulako, St. Soekarno Hatta KM 9 Palu 94118, Indonesia *gunawan[at]untad.ac.id
b) Post-graduate, University of Jakarta, St. Rawamangun Muka, East Jakarta 13220, Indonesia

Abstract
Mastery of basic volleyball engineering skills is inseparable from the level of basic volleyball motion directed by students. The purpose of the study was to determine the differences in the understanding of the basic movements of volleyball games between students who study through multimedia with conventional. The research method used is quantitative research with a quasi-experimental approach. The design used is Pretest-Posttest Non-Equivalent Design Group Control. Respondents in the study were sports students consisting of two classes divided into experimental classes and control classes. The instrument for collecting research data in the form of questionnaires. Based on the results of data analysis comparing the average basic motion knowledge of volleyball games of experimental students and control classes, there were significant differences in the level of knowledge. Experimental class students who study using multimedia have a higher level of knowledge of volleyball basic motion compared to control class students who study conventionally.

Keywords
Multimedia; Knowledge; Volleyball

Topic
Sport Science and Technology

Link: https://ifory.id/abstract/NZHvq2u68dKj

Corresponding Author
Andika Raja Sonang Munthe

Institutions
a) Department of Civil Engineering, Sekolah Tinggi Teknologi Garut, Jalan Mayor Syamsu 1, Garut, Indonesia
*andika.rsm[at]sttgarut.ac.id
b) Department of Informatics, Sekolah Tinggi Teknologi Garut, Jalan Mayor Syamsu 1, Garut, Indonesia
c) Department of Industrial Engineering, Sekolah Tinggi Teknologi Garut, Jalan Mayor Syamsu 1, Garut, Indonesia

Abstract
Decision making is part of the process of considering, understanding, remembering and reasoning about everything. The implementation of the decision itself is more emphasized on the nature of leadership of people who make decisions and management in carrying out their functions and business activities which include Planning, Organizing, Actuating and Controlling, always need information to make decisions. Management information systems are important activities in an organization or company. Management Information System is a data processing process that will produce output in the form of information. Meanwhile the organizational structure will determine how the flow of information runs within an organization. Therefore the author intends to conduct research on the influence of organizational structure and management information systems on management decision making in finance companies using descriptive analysis and verification methods.

Keywords
Decision Making; Management Information Systems; Organizational Structures.

Topic
Information Engineering

Link: https://ifory.id/abstract/jW2MGELJt3B8

Corresponding Author
Yuliatri Sastrawijaya

Institutions
Universitas Negeri Jakarta

Abstract
This study aimed to find out the effect of training of arranging questions using moodle towards teacher-s performance in arranging test items in SMA Negeri 100 Jakarta. This study used field study as the methodology with correlational approach. The sample of the study was all the 37 people from data source. This study also used questionnaire and documentation as the research instrument. Based on the results of data testing that has been done, this study found that there was positive and significant relation between the training of arranging question with teacher-s performance in arranging test items in SMA Negeri 100 Jakarta. Based on the calculation of the normality data test, it was found the result for teachers- performance instrument data with Lhitung = 0,138 and the training of arranging question data instrument Lhitung = 0,141 with Ltabel = 0,146. The meaning of the statement before was from both instruments was normal distribution. Meanwhile for the results of testing the hypothesis was found 0.735 as the value. It could be concluded that the correlation between x variable and y variable were strong. The data showed that there was positive relation between the training of arranging questions using moodle with teacher-s performance in arranging test items in SMA Negeri 100 Jakarta.

Keywords
Training, Teacher-s Performance and Arranging Questions

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/MpAu4faDZPeJ

Corresponding Author
I Made Kawan

Institutions
a) Department of Fisheries, Faculty of Agriculture, Warmadewa University, Denpasar, Bali
*E-mail: imadekawan[at]yahoo.co.id

Abstract
This study was conducted to determine the effect of salinity which can produce the most fecundity and number of shrimp larvae (Macrobrachium rosenbergii de Man). The experiment was designed using 24 units of randomized block design (RBD) using 20-30 g (I) and 40-60 g (II) heavy parent shrimp, with differences in salinity 0 Promil (0/00), 3 Promil (0 / 00), 5 Promil (0/00), and 7 Promil (0/00) which were repeated 3 times. The results showed that differences in salinity of the parent weight group (20-30 g and 40-50 g) had a very significant effect on fecundity and the number of larvae produced. The highest fecundity and production of shrimp larvae were obtained at salinity 5 Promil (0/00) in the parent weight group 40-60 g.

Keywords
Salinity, fecundity, shrimp larvae

Topic
Biology

Link: https://ifory.id/abstract/fKVDWqNZ7PnM

Corresponding Author
cecep hidayat

Institutions
Agrotechnology Dept, UIN Sunan Gunung Djati Bandung

Abstract
Swimmer crab flour (Protunus pelagicus) which has high Ca content and Arbuscular mycorrhizal fungi (AMF) can be used to overcome acid soil. The aim of this research was to know the interaction effect of swimmer crab flour and AMF on increasing acidic dry soil productivity for the growth and yield of Japanese cucumber plant. The polybag research was conducted at Nagreg Subdistrict from May to July 2018 using Randomized Block Design with two factors and three repilactions. The first factor was swimmer crab flour doses (control, r1= 9 g 5 Kg soil-1, 12 g 5 kg soil-1,15 g 5 kg soil-1 and 18g 5 Kg soil-1) and the second factor was AMF dosage (control, 5 g crop-1 and 10 g crop-1). The results showed that there was an interaction effect of swimmer crab flour and AMF on the root infection degree , there was an independent effect of swimmer crab flour on flowering time, dry weight of fruits, and harvest index of cucumber, and there was an independent effect of AMF on the harvest index.

Keywords
acid soil, swimmer crab flour, AMF, yield, japanese cucumber

Topic
Biology

Link: https://ifory.id/abstract/WwBd8TNhvPzy

Corresponding Author
Astri Rinanti

Institutions
Universitas Trisakti

Abstract
LDPE plastics are polymers that are widely used because of their waterproof, flexible and affordable characteristics. This study aims to degrade LDPE plastic with temperature and pH variations using biotechnology by a mixed cultures of Thiobacillus sp. and Clostridium sp. bacteria. This mixed bacterial cultures are grown in the growth media of Stone Mineral Salt Solution (SMSs) with a batch system. Analysis of Gravimetric method is used to find out the difference in weight of LDPE plastics and Fourier Transform Red Infrared Spectroscopy (FTIR) is used to determine the change of functional groups. To obtain optimum conditions that produce the highest degradation, temperature variations (oC) 25, 30, 35 and pH 5, 7, 9 were done. Optimum removal of LDPE occurs at 30oC with acidity (pH) 7. It shows that mixed cultures of Thiobacillus sp. and Clostridium sp. bacteria has the ability to degrade LDPE plastics with a percent removal reached 10-15%.

Keywords
Biodegradation, Thiobacillus sp., Clostridium sp., Low Density Polyethylene (LDPE), Stone Mineral Salt Solution (SMSs).

Topic
Environmental Engineering

Link: https://ifory.id/abstract/QBr97eMHWKC4

Corresponding Author
Astri Rinanti

Institutions
Universitas Trisakti

Abstract
Chlorpyrifos is an organophosphate insecticide which has molecular formula C9H11Cl3NO3PS and toxic. Bioremediation is one of environmental friendly method to remove chlorpyrifos as a contaminant because of the microbial enzymatic activity. The aim of this study is to remove chlorpyrifos with temperature and concentration of Aspergillus fumigatus variations. Aspergillus fumigatus fungi acts as bioremedian with chlorpyrifos degradation activity in the temperature range 25-35oC and concentration of A. fumigatus 0.5-1.5%. By using Gas-Chromatography Mass Spectrometer (GC-MS), the optimum chlorpyrifos degradation was achieved at 25oC with 1% concentration of A. fumigatus for 5 days in potato dextrose broth (PDB) liquid media. It shows that A. fumigatus has the ability to remove chlorpyrifos with the efficiency of chlorpyrifos removal reached 85.7% from the initial concentration of chlorpyrifos at 100 ppm.

Keywords
bioremediation, insecticide, chlorpyrifos, Aspergillus fumigatus, potato dextrose broth (PDB)

Topic
Environmental Engineering

Link: https://ifory.id/abstract/4xv3aKrfMtZy