Indonesia Conference Directory

Corresponding Author
Susilawati -

Institutions
Universitas Wijaya Kusuma Surabaya

Abstract
Rhizosphere microorganisms such as phosphate solubilizing bacteria have been widely reported as bacteria that have the ability as phosphate solvents and promote growth. The purpose of this research was to isolate the indigenous bacteria from waste Maja fruit and evaluate whether these could enhance the viability of deteriorating rice seeds. The method used in the first stage of isolation, and evaluation of germination of rice seeds using a completely randomized design. It was revealed that three isolates are isolate 1-1, isolat1-2, and isolate 1-4 were able to solubilise phosphate and produce indole. The Result showed that the three isolates were able to increase the persentage of germination by up to 39,33%, the uniformity of germination by up to 40,76% and germination rate by up 10,46%/d.

Keywords
Phosphate solubilizng bacteria; Waste maja fruit; Viability; Rice seeds

Topic
Material Science

Link: https://ifory.id/abstract/fYE3n8pZwRTX

Corresponding Author
Farid Soleh Nurdin

Institutions
1) Universitas Islam Negeri Sunan Gunung Djati, Jl. A.H. Nasution No.105, Cipadung, Cibiru, Kota Bandung
2) Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi no 229, Bandung
3) Universitas Langlangbuana, Jl. Karapitan no.116, Bandung

Abstract
In this study, we discussed the control of multivariate dispersion statistics for a single sample size. The control chart was developed from a multivariate control chart exponentially weighted mean square (MEWMS) with total variance (TV) as the multivariate dispersion size used. Although the MEWMS control chart has more advantages than MEWMA and MCUSUM control charts, it has limitations because it only applies to p = 3 variables. Therefore, the main focus in this study is to determine the L value as a determinant of the MEWMS control boundary width for the variable p = 4 through the simulation method. Based on historical data on controlling the wing component products of Airbus aircraft through simulations with vector mean parameters and covariance matrices, MEWMS Control Chart is quick in detecting changes in variance, while in detecting the average changes is very slow.

Keywords
Dispersion, Total Variance, Covariance Matrix

Topic
Mathematics

Link: https://ifory.id/abstract/VR37qNYefkAQ

Corresponding Author
Yonik Meilawati Yustiani

Institutions
Department of Environmental Engineering, Universitas Pasundan
Jl. Dr. Setiabudhi 193 Bandung 40153, Indonesia
(*) e-mail: yonik[at]unpas.ac.id

Abstract
Environmental damage that has occurred in Indonesia has severely disrupted public health. Many efforts have been made to improve the environment, both technically and non-technically. But these efforts did not show significant positive results. This condition shows that there needs to be a breakthrough in the form of innovations, especially in terms of technology to prevent and control of environmental damage. This study aims to investigate the potential for innovation in the field of environment that was generated by Indonesias young generation. In addition, this research also portrays the innovation ideas that want to be realized as well as obstacles in realizing them. The method used in this study was the distribution of questionnaires to 78 respondents randomly and a review of secondary data. The results of the study show that innovations to improve environmental conditions are not solely by making pollution control devices, but also innovations related to the use of environmentally friendly energy, organic food, waste recycling, saving natural resources, and innovations that can change the behavior of people as polluter. The results of the questionnaire dissemination also showed that only 50% of respondents felt the support of the Indonesian Government towards innovation development programs. The biggest obstacle for respondents in realizing innovation is limitation in funding and ability to start invention management. Therefore, the most needed activity is training on how to develop ideas into innovations and potential funding that can realize these innovations. The young generation of Indonesia represented by the respondents in this study stated that copyright to an innovation outcome is valuable. As many as 76% of respondents interested in applying license for their innovations in the form of patents or copyrights.

Keywords
Environmental Concervation; Innovation; Young Generation

Topic
Environmental Engineering

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

Corresponding Author
Sri Wardani

Institutions
Faculty of Medicine and Health Sciences, University of Warmadewa, Bali, Indonesia

Abstract
Abstract. Chronic Kidney disease-mineral bone disorder (CKD-MBD) are complication of patients on chronic hemodialysis therapy. This study is a cross-sectional descriptive analytic study aims to examine concentration of serum calcium as a marker of CKD-MBD. Calcium serum concentration were examined with spectrophotometer method than we computed into low, normal, and high serum calcium concentrations. This study recruited 100 chronic hemodialysis patients at Sanjiwani Gianyar Hospital and AriCanti Hospital, composed of 67 male and 33 female, mean of age is 52.52 ±12.81, duration of HD were 44,6 month. Most of the patients undergone hemodialysis 2 times a week (96 %) and performed HD 4.5 hour per session and 66% patients used AV fistula access. This study was found most of chronic hemodialysis patients (60%) has low serum calcium concentration <8.5 mg/dl. On Spearman correlation test, serum calcium concentrations in this study were significant influenced by serum creatinine concentration r = -0.461 and phosphate serum concentration r= -0.0273 on p < 0.001, respectively. Conclusions: most of the chronic hemodialysis patients in this study has low serum calcium concentration as a marker of CKD-MBD.

Keywords
CKD-MBD, hemodialysis, serum calcium concentration

Topic
Biology

Link: https://ifory.id/abstract/zh9CVb8njgud

Corresponding Author
Agus Setyo Budi

Institutions
Physics Department, Universitas Negeri Jakarta

Abstract
In this research, we analyze the conductivity properties of ZnO nanorods was grown by using a hydrothermal method. We use the I-V characteristics test to determine the conductivity properties. We apply voltage in the range of 1–30 volt. The result from the I-V characteristics shows that the greater value of the applied voltage produces a decrease of the resistance value. The resistance value obtained at a given voltage of 1 volt is 7.8 kOhm, while at a voltages of 30 volts is 0.5 kOhm. The I-V curve profile indicates that interface between ZnO nanorods and Au-electrode shows a Schottky barrier characteristics.

Keywords
zno nanorods, i-v characteristics, hydrothermal nanorods

Topic
Material Science

Link: https://ifory.id/abstract/kqej79LNpBGb

Corresponding Author
Handjoko Permana

Institutions
a) Department of Physics Education, Faculty of Mathematics and Sciences, Universitas Negeri Jakarta, Jakarta 13220, Indonesia
*handjoko[at]unj.ac.id

Abstract
Augmented Reality is a technology that can provide positive perceptions of lessons, improve learning experiences, and improve learning achievement. It visualizes the phenomenon obtained by the results of laboratory research. This research was to design and develop the marker of radioactive concepts. The stages consist of determine the instructional needs and goals, develop the markers, and evaluate from peers. We generate two markers for this concept: radioactive light penetration and radioactive light beam by electric field. The markers were developed based upon the identification of instructional needs and expected to assist in the achievement of the instructional objectives. The peer assessment results indicate that the marker design on radioactive concepts supports the physics learning through technology-rich environment.

Keywords
Augmented Reality, radioactive concepts, 3D Animation

Topic
Computer Science

Link: https://ifory.id/abstract/x8ve7B3YRHJa

Corresponding Author
Soeprijanto Soeprijanto

Institutions
Faculty of Engineering, Universitas Negeri Jakarta, Jakarta, Indonesia

Abstract
This study aims to describe the level of digital literacy, career plans and student achievements and analyze the extent of the relationship between variable digital literacy variables, and career plans with learning achievement. The research method used is descriptive correlational. The problems raised in this study are whether there is a relationship between the relationship between digital literacy variables, career plans both in the same way as together, together with student achievement. The study population was students of the Faculty of Engineering, Jakarta State University, the study sample was taken by stratified random sampling. The results showed that the digital literacy of UNJ Faculty of Engineering students was good. The results of the calculation of partial correlation between variables in the significance of 0.05 as follows: (1) between digital literacy (X1) and student achievement (Y) obtained r14 = 0.066. (T count = 2.208 ≥ T table = 1.98), and (2) between digital Career Planning (X3) and Student Learning Achievement (Y) obtained a value of r34 = 0.308 (T count = 3.488 greater than T table = 1, 98). The conclusions of this study are as follows: (1) There is a significant relationship between digital literature and student achievement; (2) There is a significant relationship between Career planning and student achievement. (4). There is a varied relationship between digital literacy, career planning between study programs in the environment, Faculty of Engineering, Jakarta State University. The implication of the findings in this research is that the software study program ensures that all students master information technology and have a clear career planning.

Keywords
Keywords: Digital literacy, information technology. carreer planning, student achievement.

Topic
Computer and Communication Engineering

Link: https://ifory.id/abstract/rL7pRaDy2X6f

Corresponding Author
RINI SETIATI

Institutions
Petroleum Engineering Faculty Of Earth Technology Trisakti University

Abstract
In this field, which has used this waterflooding technique as it goes through, there is a solid production which causes sand problems. Sand problems that occur result in increased production loss and cost lost. The purpose of this research is to find the right solution in overcoming sand problem, by studying the characteristics of the rock. Laboratory experiments were carried out using a mechanical method approach which was then used to determine the appropriate gravelpack design. The steps taken include testing the strength of the core of the three zones, The decrease of strength can conclude that the core of the three zones has begun to weaken. The results of the analysis of the grain size of the D50 then used to determine the appropriate gravelpack design in each zone. Zone A, using gravelpack 60/80, zone B using gravelpack 16/20, and zone C using gravelpack 30/50. From the gravelpack design obtained then a sand retention test is performed to determine the gravelpacks performance. With the results of the sand retention test showing good gravelpack performance for each zone, where the permeability value is good and the solid produced is not too much.

Keywords
sand problem, gravelpack, sand retention test

Topic
Material Engineering

Link: https://ifory.id/abstract/M6JXFrZuWje9

Corresponding Author
Fauzi Bakri

Institutions
a) Department of Physics Education, Faculty of Mathematics and Sciences, Universitas Negeri Jakarta, Jakarta 13220, Indonesia
*fauzi-bakri[at]unj.ac.id

Abstract
Radiation concept in Nuclear subject in Physics Learning include some devices, such as: Geiger Muller counter, Wilson cloud chamber, scintillation detector. The aim of this research is to visualizes the radiation concept from that devices using augmented reality technology. The result show the 3-D animation can: describe the mechanism of the Geiger muller counter detector to detect radiation; describe the mechanism of Wilsons fog chamber detects radiation; and describe the mechanism of the scintillation detector tool to detect radiation. All the markers developed get a decent value to be used as a medium for learning physics about radiation concept.

Keywords
Augmented Reality technology, radiotion concepts, 3D Animation

Topic
Computer Science

Link: https://ifory.id/abstract/UL6nV3Tmpu2K

Corresponding Author
Rini Puspitaningrum

Institutions
1. Department of Biology, FMIPA Universitas Negeri Jakarta
2. Human Medicine, JLU Giessen Germany
3. Medical Doctor, UIN Syarif Hidayatullah Jakarta
4. Department of Physics, Universitas Negeri Jakarta
5. Department of Biological Educational, FMIPA Universitas Negeri Jakarta

Abstract
The Bajau sea nomads as a famous tribe Indonesia. Bajau can breathe in sea water more than 3 minutes. There have been studies conducted on the Bajau tribe before, but this research will discuss the analysis of the Bajau tribes blood gas. The 20 people from the Bajau Tribe agreed, after the interview was taken, blood would be collected to find out how much PaO2 was. It was found that all the Bajau tribes had a PaO2 yield of more than 95%, which indicated that the oxygen in their blood was very high. Average depth above 3 meters.

Keywords
Bajau sea nomads tribe, diving, breathing adaptation

Topic
Biology

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

Corresponding Author
Luh Suriati

Institutions
Warmadewa University

Abstract
Abstract: Edible coating is biodegradable and eco-friendly packaging that current developments. Constituent components of edible coatings in the form of hydrocolloid (polysaccharides, proteins), lipids and composite. The edible coating serves as a protective material which is packed from outside influences also functions as a matrix of antimicrobial agents. Synthetic preservatives that many outstanding raises concerns of the community to use it, because of the high risk on health. One of the potential natural ingredients as an edible coating and also as a natural preservative is Aloe Vera gel. Aloe Vera is a polysaccharide that contains many components of bioactive, but the disadvantage easily becomes diluted. Aloe Vera gel should be kept on the proper environmental conditions. This research aims to know the influence of storage temperatures against characteristics of fillet Aloe Vera that potential as an edible coating. This study used a randomized complete design. Color fillet Aloe Vera clear white initially when stored at room temperature turns pink on day 2. While stored at cold temperatures the color change on day 4. The gel is stored at cool temperatures have pH and moisture content are relatively stable, decreased severity is also lower compared to store at room temperature

Keywords
Keywords: keyword 1; Edible coating 2; gel 3; Aloe vera 4; fillet 5; biodegradeable

Topic
Material Science

Link: https://ifory.id/abstract/Yh2TtnNzKZpM

Corresponding Author
Diah Ambarwulan

Institutions
Physics Education Department, Universitas Negeri Jakarta
Civil Engineering Department, Universitas Mercu Buana
dmuliyati[at]unj.ac.id

Abstract
This system is carried out using 2 (two) power between the power of the PLN as the main power and the generator as a backup power. This system uses a power capacity for PLN of 30KVA and Genset power of 45KVA. This observation was carried out in the Clinical Laboratory of Prodia Sunter Barat. This system relies heavily on the important role of the Motorized Change Over Switch device, because with this device, the automatic transfer system can run properly without collisions when the backup power supply is being used and when the main power supplies returns. The results of observations on two power experiments between the power of the PLN and the power of the generator when there is a blackout at the PLN. Automatically the performance of Motorized Change Over Switch works has a range of pauses of 18 seconds to be able to power the Genset capable of taking on the role of PLN to back up the Prodia Sunter Laboratory Building, and when the PLN power returns the power is held for 30 seconds by a Motorized Change The Over Switch ensures that the main power of the PLN is reconnected.

Keywords
generator operating system, Motorized Change Over Switch

Topic
Electrical Engineering

Link: https://ifory.id/abstract/9DzhGkbBZMqn

Corresponding Author
Neneng Siti Silfi Ambarwati

Institutions
1Department of Cosmetology, Faculty of Engineering, Universitas Negeri Jakarta, Jl. Rawamangun Muka, East Jakarta, 13220, Indonesia
2Department of Phytochemistry, Faculty of Pharmacy, Universitas Mulawarman, Samarinda, Kalimantan Timur, Indonesia

Abstract
Background. Pidih is a cosmetic used on Javanese bride-s foreheads called paes. Peel material that is commonly used is wax which is colored as desired and has easy sticking properties. Objective. The objective of this research is to provide an alternative use of natural ingredients for pidih that used on the brides forehead makeup. Methods. Experiment was conducted to obtain black powder made from recycled dried coconut leaves and olive oil with the appropriate composition, and then applied as paes in the Solo putri style bride. Results. The use of cosmetics with natural ingredients, the leaves of dried coconut and olive oil, produce black, shiny, easily painted on the forehead, and rather oily. The cosmetic material can be used as an alternative for pidih that is made of wax. Conclusion. Alternative boiling from the ash of dried coconut leaves can be used as a substitute for conventional pidih.

Keywords
pidih, dried coconut leaf, olive oil, forehead makeup, bride

Topic
Chemistry

Link: https://ifory.id/abstract/9yYJQVvmu8wx

Corresponding Author
Masta Hutajulu

Institutions
a)Postgraduat Departement of Mathematics Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi 229, Bandung 40154, Indonesia
b)Departement of Mathematics Education, IKIP Siliwangi, Jl. Terusan Jenderal Sudirman, Cimahi 40526, Indonesia
* masthahutajulu[at]student.upi.edu

Abstract
Abstract. This study aims to analyze the achievement of each indicators habits of mind (HoM) senior high school students. The research method used is descriptive. The population in this study were high school students in the city of Bandung. The sample was chosen by 1 class consisting of 31 students. The instrument used was the Habits of Mind questionnaire. The results showed that the habits of mind of senior high school students were positive for the 16 indicators and were at moderate to high levels. This study can be recommended to improve the habits of mind (HoM) senior high school students.

Keywords
Habits of mind, indicators

Topic
Mathematics

Link: https://ifory.id/abstract/mLQRrW7X6NA3

Corresponding Author
Dewa Ayu Putri Sri Masyeni

Institutions
Sanjiwani Hospital/Faculty of Medicine and Health Sciences, University of Warmadewa

Abstract
Abstract Background: Substitution of long-term ART exposed to HIV/AIDS patients are common due to the ART adverse event. The study aim is to describe the reason of ART substitution among HIV/AIDS patient at Sanjiwani Hospital Bali. Methods: A retrospective study has conducted to the medical records of HIV/AIDS patients at Sanjiwani hospital Bali, during 2006-1018. Clinical data retrieved from the medical records and presented as descriptive data. Results: Over a twelve-year period, 1112 HIV/AIDS patients evaluated in the study. The ART regimen were Zidovudine-based ART, Tenofovir-based ART and Stavudine-based, for 12.2%, 87.3%, 0.5%, respectively. There were 2.2 % switching of ART during the study periode. The most reason was anemia (48%), followed by reducing of kidney function (28%), allergic reaction (16%), and 4% of nausea and suspected clinically failure to ART. Conclusion: We highlight that anemia is the main reason of ART substitution among HIV/AIDS patients

Keywords
ART; substitution; HIV/AIDS

Topic
Biology

Link: https://ifory.id/abstract/qh27jCe3TwWU

Corresponding Author
Dewa Ayu Putri Sri Masyeni

Institutions
Sanjiwani Hospital/Faculty of Medicine and Health Sciences, University of Warmadewa

Abstract
Background: the increase level of serum phosphate is common due to secretion failure of the kidney on chronic kidney disease patients (CKD). The study objective is to determine the level of serum phosphorus among the CKD patient on chronic dialysis in Gianyar Bali. Methods: a prospective cross-sectional study was conducted in 100 serum of the patient visiting dialysis clinic in Sanjiwani and Arisanti Hospital on October 2018. A three mL of blood was collected and the phosphate level was measured with specthrofotometer. Results: Sixty seven of 100 samples was man with mean age was 52,52 (SD±12,811). The most cause of CKD was pyelonephritis chronic. The mean of hemodialysis duration was 44,59 (SD± 32,40). Level of the phosphate more than normal limit found as high as 69% of the samples. There was a correlation between age (p=0.001), gender (p=0.020) and phosphate level, but there was no correlation between IMT, HD duration and phosphate level, accounting for p=0.222 and p=0.264, respectively. Conclusion High finding of hyperphosphatemia that found in the study reveal the presentation of CKD-mineral and bone disorder in CKD patients. Correlation of age with higher phosphate level may relate with the deterioration of kidney function in elderly.

Keywords
CKD; phosphate level, hemodialysis

Topic
Biology

Link: https://ifory.id/abstract/TLG7AzgMaxcu

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
Ni Ketut Etty Suwitari

Institutions
Program studi Peternakan, Fakultas Pertanian Universitas Warmadewa

Abstract
The research was carried out at the Basic Laboratory of the Faculty of Agriculture, Warmadewa University with a level of use of fermented coconut pulp, namely R0 (ration that contains no fermented coconut pulp, R1 (ration containing 5% fermented coconut pulp flour), R2 (ration containing 10 % fermented coconut pulp) and R3 (rations containing 15% fermented coconut pulp). Each combination of treatments was repeated three (3) times, and each replication consisted of 4 super female free-range chickens. Variables observed included: 1). Age of chicken growth includes the weight gain and final weight of super free-range chicken, 2) Percentage of carcass and non-carcasses for super free-range chicken, 3) Feed Convertion Ratio (FCR, 4) Feed consumption, and 5) B / C ratio. From this study it was found that the giving of coconut pulp flour was fermented up to 10% (R2) significantly (P <0.05) could increase weight gain and final weight and B / C ratio of 14 weeks super female free-range chicken, and flour dregs fermented coconut to the level of 10% also decreases ration consumption and the conversion of ration for super female chicken 14 weeks old.

Keywords
Performance, Carcass, Super Free-range chicken, Coconut Dregs, Fermentation

Topic
Biology

Link: https://ifory.id/abstract/n3TQEj9rgtcU

Corresponding Author
Dewa Ayu Putri Sri Masyeni

Institutions
Faculty of Medicine and Health Sciences, University of Warmadewa

Abstract
Diabetes mellitus is one of the health problems worldwide. The prevalence of DM in Indonesia in 2013 is 12,191,564 people and is predicted to increase to 21.3 million people in 2030. Obesity is the main factor of type 2 diabetes mellitus. The measurement to diagnose obesity is the waist circumference. The aim of this study was to determine the relationship between the waist circumference on obesity among the incidence patient of type 2 diabetes mellitus in BRSU Tabanan. The design of this research was cross sectional. The subjects of this study were all adult male patients with type 2 diabetes mellitus or obesity in ambulatory clinic BRSU Tabanan, who were selected using consecutive sampling. Independent variables in this study was the waist circumference and the dependent variable was type 2 diabetes mellitus. Data were collected using instruments such as metric / meter cloth and blood glucose was measured using Easy Touch GCU. Data were analyzed by SPSS application using Chi-square. The results were as follows: the average of the waist circumference (obesity) and type 2 diabetes mellitus were 52,8% and 54,7% respectively. The relationship of both above was significant (p<0,05; r=0,396). The conclusion could be drawn that there was positive significant relationship between obesity and type 2 diabetes mellitus. It was recommended that the subject should be maintain the ideal body weight, and for the obese people were expected to reduce their body weight.

Keywords
type 2 diabetes mellitus, obesity, waist circumference

Topic
Biology

Link: https://ifory.id/abstract/tuh7MEKcdWXH

Corresponding Author
I Kadek Merta Wijaya

Institutions
a) Department of Architecture, Faculty of Engineering and Planning, Warmadewa University, Bali, Indonesia
*amritavijaya[at]gmail.com

Abstract
The orientation of luan and teben in traditional settlement layouts in Bali is characterized by directions of sacred (luan) and profane (teben) values. The orientation of luan is generally towards kaja (Mount Agung/the place of Gods) and kangin (direction of the sun rising) which is signified by sacred spaces namely the holy place (pura). While the orientation of the teben is towards kelod the direction of the sea or graveyard (setra). The traditional settlements in Pengotan Village which have settlement patterns are linear with sacred (luan) orientation towards Mount Batur (Kaja) and Gunung Abang (Kangin). The orientation towards Mount Batur and Gunung Abang is background by the history and origins of the Indigenous Village of Pengotan which is a resident who lives at the foot of Mount Abang in the Kintamani area. The pattern of Pengotan Village is extended from the kaja to the kelod which consists of three zones, namely the Utama (zone of sacred) as the space intended for shrines (pura), Madya as the space for residential housing units and the Nista zone (zone of profane) intended for the graveyard (setra). This pattern is repeats in clusters of residential housing units. This study aims to spatial study of luan and teben orientations in Indigenous Village Pengotan through an approach: (1) history of the Traditional Village Pengotan, (2) conception of the mountain as a sacred direction, (3) conception luan and teben on settlements in mountainous area, (4) general concepts of sacred and profane space and (5) conception of signifier and signified spaces in architecture. The method used is naturalistic interpretive in studying space in a conceptual (intangible) and concreate (tangible) context through empirical studies on sensual (observation), natives viewpoint, logic viewpoint (researcher-s viewpoint) and transcendental aspects. The results of this study are (1) spatial patterns based on luan and teben conception; (2) the signifier and signified system in space of luan and teben orientation and (3) the relationship between Mount Batur and Mount Abang as luan (sacred) orientation in the Pengotan Village.

Keywords
kaja and kangin, luan and teben, Mount Batur and Mount Abang, signifier and signified system, spatial patterns

Topic
Architecture

Link: https://ifory.id/abstract/beVPj24mgqkQ

Corresponding Author
Dewa Ayu Putri Sri Masyeni

Institutions
Faculty of Medicine and Health Sciences, University of Warmadewa

Abstract
The desire to create the best possible work, increased demands such as accuracy and speed of work cause employees to stay in front of the computer for long periods of work, so that it may be at risk of asthenopia disturbance. One of the occupations that are at risk for impaired asthenopia are employees who use computers at the Federal International Finance (FIF) Group Bali. This study aims to determine the percentage of asthenopia disorders based on asthenopia symptoms experienced. This research uses descriptive method with cross-sectional approach. The variables included asthenopia disorders, age, gender, VDT settings, screen filters, duration of work, and rest duration, room and angle lighting formed between the top of the monitor and the midpoint of the screen. The sample of this research is all employees who use computer in FIF Group Bali. Data collection in this study using Computer Vision Quistionnaire using Likert scale that has been validated. Data were analyzed descriptively with univariate computer aid. The result of the research showed that the most common complaint was headache as many as 38 respondents (79.16%). The incidence of asthenopia in the age group of 21-40 years was a headache of 28 respondents (58.4%), and at the age of 41-60 years was a headache of 10 respondents (20.9%). Based on sex, the prevalence of asthenopia in males is headache as much as 21 respondents (43.8%), in women is close blurry vision as much as 17 respondents (35.5%). The highest prevalence of asthenopia in room lighting settings <200 lux was headache as much as 19 respondents (39.6%), while in room lighting 200 lux-500 lux was blurred vision with as many as 10 respondents (23%).

Keywords
asthenopia, VDT operator, computer vision questionnaire, FIF Group Bali

Topic
Biology

Link: https://ifory.id/abstract/wZ8z76t9f2cL

Corresponding Author
Anny Eka Pratiwi

Institutions
Warmadewa University

Abstract
Indonesia is nominated as third country with the largest number of tuberculosis cases after India and China. This is caused by high prevalence rate of tuberculosis in Indonesia, including in Sading Village Mengwi District Badung Regency. The prevalence rate of tuberculosis 2014 in Indonesian amount to 6,47/1000 popoulation,increased when compared to the previous year amounted to 2,72/1000 population. Increased incidence of tuberculosis from 2013 to 2014 in Mengwi District ia large enough compared to other district in Badung Regency. With its incidence in 2014 is 45 cases whereas in the previous year only 26 cases. Based on report Puskesmas Mengwi III, in 2016 there are 10 new cases of tuberculosis, and 6 of them occurred in Sading Village. Depart from this issue, a study was to explore knowledge, attitude, and behavior of community to tuberculosis prevention in Sading Village Mengwi District Badung Regency. This study was designed as descriptive research with cross sectional approach. A number of 106 household were chosen as the samples using multistage random sampling. The data were collected through interview using a questionnaire. Study found that knowledge level and behavior of tuberculosis prevention are categorized not good. While the attitude level is categorized good. Hence, it is needed more intensive socialization of tuberculosis prevention to helping the community to understand more about danger of tuberculosis disease so that it can prevent transmision and reduce the prevalence rate of tuberculosis in community.

Keywords
Tuberkulosis, Knowledge, Attitude, Behavior

Topic
Management Science

Link: https://ifory.id/abstract/TGx7gtU3nCZp

Corresponding Author
Dewa Ayu Putri Sri Masyeni

Institutions
Faculty of Medicine and Health Sciences, University of Warmadewa

Abstract
Obstructive sleep apnea (OSA) is a respiratory illness with the involvement of sleep disorders that have a characteristic ofrecurrent collapse of pharynx airway during sleep. OSA has a serious physiological and psychological impact if left untreated. OSA complications can be divided into 2, namely neurocognitive dysfunction and cardiovascular disease. This will affect the quality of life of the patients, including low quality of sleep, reduced cognitive function, and decreased productivity. The purpose of this study is to determine the prevalence of high risk of OSA in employees and lecturers at Warmadewa University. This research is using descriptive research method with cross sectional design. The sample in this research is employee and lecturer of Faculty of Medicine and Health Sciences at University of Warmadewa taken at random. The independent variables were snoring, daytime sleepiness, obesity, and high blood pressure. Dependent variable is obstructive sleep apnea. The study used primary data, which the data collected by interviewing and distributing Berlin questionnaire and measuring body mass index of employees and lecturers of Warmadewa University. Data analysis used descriptive analysis with Statistical Package for The Social Science (SPSS) program. There were 12 (15.18%) employees and lecturers at high risk of OSA based on the Berlin questionnaire. It is expected that the puskesmas can optimize its role in carrying out advanced screening to detect OSA in the community.

Keywords
Obstructive sleep apnea, prevalence of obstructive sleep apnea, employee and lecturer

Topic
Biology

Link: https://ifory.id/abstract/7tyrAF3Mvmeb

Corresponding Author
Dewa Ayu Putri Sri Masyeni

Institutions
Faculty of Medicine and Health Sciences, University of Warmadewa

Abstract
Nowadays, type 2 diabetes mellitus (T2DM) is the most prevalence of diabetes mellitus disease. In Indonesia 10 millions people suffering T2DM which caused Indonesia ranked seventh in the world and predicted to increase 16.2 millions patients on 2040. The use of oral antidiabetic drugs (OAD) like metformin and gliclazide still an option on T2DM therapy. This study aims to determine the differences in the effectiveness of metformin and gliclazide to lower blood glucose in patient T2DM in the sanjiwani gianyar hospital. The variable of this study is oral antidiabetic drugs and blood glucose. The design of this study using cross sectional analitic observational approach with retrospective study. The sample of this study is patient T2DM in internal medicine policlinic of Sanjiwani Gianyar Hospital from Januari-Desember 2016 with 160 subjects who selected through consecutive sampling and fulfil the inclusion and exclusion criteria. This study using secondary data in form of medical record. The data was analyzed by chi square test (α=0.05). The results was showed that the effectiveness of each OAD to decrease blood glucose for 3 months therapy, the used of metformin showed that (70%) 56 sample achieved controlled blood glucose while the used of gliclazide showed that (52.5%) 42 sample achieved controlled blood glucose and there was a significant differences in the effectiveness of metformin and gliclazide with p value is 0.035. The conclusions of this study is metformin more effective than gliclazide to lower blood glucose in T2DM outpatient and advices who gived to hospital, health workers and community.

Keywords
Type 2 diabetes mellitus, Effectiveness, Metformin, Gliclazide, Blood glucose

Topic
Biology

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

Corresponding Author
Anny Eka Pratiwi

Institutions
Warmadewa University

Abstract
Musculoskeletal disorders (MSDs) are the most common work-related health problem among the non ergonomic work posture in work station design. Tailors at PT. Uluwatu Delod Peken Village, Tabanan District, Tabanan Regency are one many occupation that have risk of MSDs. The aim of this study was to find out the correlation between sitting posture with MSDs. The amount of the sample was 40 tailors involved in this study. Musculoskeletal disorders were measured using Nordic Body Map Questionnaire with Likert scale. While working posture was observed in Rapid Entire Body Assessment (REBA) Employee Assessment Worksheet. The data was analyzed by SPSS.23. The results of MSDs were as follow the light, the mild, heavy category, 25%, 42,5%, 32,5% respectively. The working posture were as follow ergonomic approach with low risk (22,5%) and non ergonomic with medium risk (77,5%). The correlation of both variables above was significant (p<0.05). The conclusion could be drawn that there was correlation between work posture with MSDs. It was recommended that the work posture of the tailors should be improved to reduce the risk of suffered MSDs.

Keywords
Musculoskeletal disorders, Work Posture, Ergonomic

Topic
Management Science

Link: https://ifory.id/abstract/tLGcHegY48EU

Corresponding Author
Ni Komang Alit Astiari

Institutions
a Agrotechnology Study Program, Faculty of Agriculture,Warmadewa University, Denpasar, Bali.
b Agroecotechnology Study Program, Faculty of Agriculture,Udayana University, Denpasar, Bali.
* E-mail: alit.astiari[at]gmail.com

Abstract
This study aims to improve the quality of citrus cv. Siam through fertilization and pruning. This experiment used factorial randomized block design consisting of 2 factors. The first factor is fertilization consisting of 3 levels (P0 = only fertilized with manure/control, P1 = manure,N,P,K,Ca, and P2 = manure,N,P,K,Ca,Zn,Cu). The second treatment is pruning consisting of 3 levels (M0 =without pruning, M1 =pruning young shoots, and M2 =pruning young shoots, leaves and twigs that are protected and affected by disease). Fertilization treatment with P2 improved fruit quality, which was reflected by the increase of harvested fruit weight per tree (99.79%); weight per fruit (35.69%) and total dissolved solids (30.22%). Harvested fruit weight, weight per fruit, and total dissolved solids on treatment with P2 were 3442.76g, 173.58g, and 9.48obrix, respectively, but on control that were only 1673.13g; 127.92g and 7.28obrix. In the pruning treatment, the best results were obtained in M2 which was reflected in the increase in weight of fruit harvested per tree (40.91%), weight per fruit (19.56%) and total dissolved solids (25.55%). Fruit weight per tree, weight per fruit, and total dissolved solids in M2 treatment were 3638.77g, 173.58g, and 9.63obrix respectively, but in controls only 2582.34g, 145.92g, and 7.67obrix

Keywords
fruit quality, off-season, fertilization, pruning, Citrus cv. Siam

Topic
Biology

Link: https://ifory.id/abstract/weq3vDjfG2hF

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
Prayang Sunny Yulia

Institutions
a. Petroleum Engineering Department, Faculty of Earth Technology and Energy, Universitas Trisakti-Jakarta
*prayang[at]trisakti.ac.id

Abstract
The needs of petroleum as energy, have increasing while the oil production has depleting. Due to that needs, the method of Enhanced Oil Recovery (EOR) or in other hands as tertiary recovery (after primary recovery and secondary recovery) is being developed. EOR has many methods; one of the methods is chemical injection that consists of surfactant, alkaline and polymer. In this experiment, the author is using surfactant injection. The using of surfactant is to decrease the interfacial tension between oil and water, with the result is surfactant can displace oil through rock pores. This study will be discussing about the effect of salinity, surfactant types and surfactant concentrations on surfactant injection for carbonate rock. Surfactant types that will be used are Alpha Olefin Sulfonate (AOS) and Tween 20. Each surfactant type has its concentration varieties as 0,1%; 0,25%; 0,5%; 0,75% and 1%. Salinity varieties of brine water are 10.000 ppm; 15.000 ppm; 20.000 ppm and 25.000 ppm. From this study, it will determine that how capable surfactant can displace the oil from rock pores, based on the influence of salinity, surfactant concentrations and surfactant types to recovery factor. The determination of recovery factor will be using these methods; Amott apparatus (imbibition process) and injection using core holder and syringe pump. The expectations from this study is there will be get the best result from many parameters of surfactant and brine water salinity to improve the recovery factor, especially on carbonate rock.

Keywords
EOR, surfactant, recovery factor, carbonate

Topic
Chemical Engineering

Link: https://ifory.id/abstract/DehUEn4uNw6M

Corresponding Author
Dewa Ayu Putri Sri Masyeni

Institutions
Faculty of Medicine and Health Sciences, University of Warmadewa

Abstract
Laundry services develop as one of the leading informal economic sector in Bali. Workload on laundry worker is due to monotonous process. Workloads that are not in accordance with the ability of workers could lead to excessive energy use, resulting in fatigue. The aim of this study was to find out the correlation between workload and fatigue rate among the laundry workers in Dalung Village, Kuta Utara District, Badung Regency. The method used in this study is analytical descriptive with cross-sectional approach. The subject in this study were laundry workers in Dalung Village, Kuta Utara District, Badung Regency. The amount of the sample was 40 people selected by purposive sampling method. Workload data was measured by calculating the working heart rate using pulsemeter. Fatigue data was measured by 30-item fatigue questionnaire with Likert scale. The relationship between workload and fatigue rate were analyzed by SPSS using Somers d test. The results were shown as follows the average of the working heart rate and fatigue rate : 91.6 ± 8.27bpm and 57.03 ± 9.68, respectively. The highest percentage of workload category was light workload (82,5%) and the highest precentage of fatigue category was moderate category (80%). There was positive significant relationship between workload and laundry worker fatigue rate ((p <0.05 and r=0.47). The conclusion could be drawn that there was a positive significant correlation between workload and laundry worker fatigue rate. It was suggested that the workers should be drink water and rest enough to reduce fatigue.

Keywords
workload, fatigue, laundry worker

Topic
Biology

Link: https://ifory.id/abstract/TcbhQgv28aWZ

Corresponding Author
Mirsa Umiyati

Institutions
Universitas Warmadewa

Abstract
Abstract The Ayung river basin is the largest watershed in the Bali-Penida River Region with an area of 306,149 km2 with a river length of 71,791 km. This watershed through six districts/cities. Population growth and the demands of a more viable livelihood have encouraged people to continue to strive to meet all their needs and the development of tourism in Bali which is growing rapidly, but behind that there will be negative impacts caused mainly on the river water environment and river estuary. Industrial waste and household waste transported in river waters from year to year continue to increase. For this reason, it is necessary to evaluate the environmental conditions of river estuaries and environmental arrangements to be able to support water needs and tourism activities. The aim of this research is to make a model of conservation of water resources at the River Ayung estuary with ecotourism based. The research method uses quantitative and qualitative research methods by involving the researcher in a participatory manner in the subject of the research, ie the users of water and administrators of the traditional village of Kertalangu, Kesiman. For this reason, changes are needed as follows: object changes are subject to research. The research location is the estuary of the Ayung River. Data to be taken are data on changes in land function, climate, population, topography, bathymetry, land use, river boundaries and coastal boundaries, estuary values, orientation of water sources, functions of land around the river estuary. The results of the study of conservation of water resources in the Ayung River Estuary were 15.37 m3/sec, this conservation was carried out by building reservoirs downstream, to meet the water needs of the people in Bali Province designated as raw water, tourism water and 9542 ha of irrigation water.

Keywords
Keywords: water conservation, ecotourism, river estuary

Topic
Environmental Engineering

Link: https://ifory.id/abstract/cxH3rMuFfJ79