Advances in Science and Technology Vol. 112

Abstract: The Opak Fault (OF) system is the most widely known active fault system in Yogyakarta, Indonesia. This active fault system became increasingly recognized especially after the 2006 Yogyakarta earthquake. Although the 2006 Yogyakarta earthquake caused a lot of damage and casualties, seismogenic fault responsible for the event is still a matter of debate. GNSS-based observation studies suggested that the 2006 event occurred along the OF. However, seismic-based observation studies showed that this event might occurred several kilometers to the east of the OF. A better understanding of the active seismogenic fault is important to assess geohazards in the region. In this paper, Interferometric Synthetic Aperture Radar (InSAR) data from Sentinel-1 satellite, which has a wavelength of 5.6 cm and operates in Terrain Observation by Progressive Scan (TOPS) mode, was used to image deformation rates of the OF. The result showed that there is a significant surface deformation along the OF. This surface deformation could be driven by postseismic effect following the 2006 Yogyakarta earthquake or the aseismic creep. Displacement discontinuity, which indicates the location of the OF, could be recognized using InSAR technique. These finding confirm the capability of SAR observation in providing high spatial resolution of surface deformation data.

Abstract: Since the beginning of 2020, the Covid-19 pandemic has emerged in Indonesia and affected how people live, including the learning process. Schools and education institutions have been forced to move online. In addition, the places to support learning activities were closed as a precautionary measure against the spread of the virus, such as museums and historical sites. The education sector needs to rapidly develop and deploy a robust digital framework in dealing with the pandemic's effect. The 4.0 technological sophisticated development starts to pervade the learning process, such as augmented reality (AR). AR, which supports inclusive learning with interactive and attractive performance, can play an essential role in delivering profound understanding for students. This article presents the 3D historical enriched model of the Pawon temple derived from close range photogrammetry's point clouds that blends real and virtual environments. The 3D model of Pawon temple, which reached Level of Detail 3 (LoD3), can be accessed and perceived by users with augmented reality technology via Android-based devices.

Abstract: Soybean for tempeh preparation is generally peeled by wet milling of cooked soybean seeds. This technique is time consuming and requires a lot of water. Instead, peeling can be done by dry milling prior to cooking to save processing time and water usage. This research aims to evaluate the characteristics of tempeh prepared from local Indonesian soybean as influenced by peeling techniques. The characteristics of peeled and unpeeled-soybean were also evaluated. Characterization of tempeh was done on proximate composition, textural properties, color, and organoleptic acceptances. The proximate characteristics of tempeh made from dry-peeled and wet-peeled soybean had no significant differences. Tempeh prepared by dry peeling had a softer texture (1.79 N) than that prepared by wet peeling (2.04 N). The color of tempeh with dry-peeled soybean was lighter than that with wet-peeled soybean, both its outer and inner part. Tempeh prepared by dry peeling had a better sensory acceptance in chewiness (4.3) than that by wet peeling (3.0), and no differences in taste, cohesiveness, aroma, and color. These results provide an alternative of a more environmentally friendly tempeh preparation with a dry peeling technique.

Abstract: Endophytic bacteria have a great potential to be applied as biofertilizers and biopesticides, but their information as a source of antibiotics still needs to be developed and explored. The aim of this study was to investigate the potential sources of antibiotics in endophytic bacteria isolated from the stems of Setigi, Wahong, Bongko, Kalimosodo, Dewandaru, and Legundi plants on Karimunjawa Island. Molecular approaches were performed to isolate, characterize, and identify bacterial endophytes as potential antibiotic sources by plate assay and 16S rRNA gene sequence analysis. Dewandaru isolate was identified as gram-negative bacteria, whereas; gram-positive bacteria were detected in other isolates. Moreover, Setigi and Dewandaru isolates showed the highest level to inhibit the growth of Fusarium sp and displayed 99% similarity with antibiotic-producing bacteria, namely Bacillus pumilus and Bacillus cereus, respectively. These results indicate the possibility of antibiotic activities by Setigi and Dewandaru isolated. Therefore, it is assumed that both Setigi and Dewandaru isolates potentially appeared as new antibiotics sources from local plants. This study provides novel insight into the future production of novel antibiotics derived from plant-associated endophytic bacterial as a strategy for increasing the application of natural compounds to control plant diseases in agriculture.

Abstract: The first stage to prepare bagasse ash to be synthesized. Furthermore, it will be in a furnace at a temperature of 600°C for 4 hours, then analyzed by SEM, BET, EDX, XRF to determine the morphology, surface area, elements and compounds contained in bagasse ash. The second stage is calcined using H₂ gas stream, then TGA analysis. The third stage results from calcination, then hydrothermal with the addition of a molar variation of 10Na₂O:xAl₂O₃ 15SiO₂: 300H₂O namely mixing 3.06 grams of Al₂O₃, 3.168 grams of NaOH, 1.908 grams of silica from bagasse ash and 20.87 grams of H₂O (pH=7). Then the sample will be analyzed using XRD and SEM. The next step will be to test zeolite Y which is synthesized into a metal solution medium, namely Pb²⁺ 25 ppm. The results of the XRF of bagasse ash contained a SiO₂ content of 54% which can be used as a synthetic zeolite with a surface area of 291,761 m2/g, after being synthesized, the surface area of ​​zeolite Y is 648,178 m²/g and % adsorption 97.43% for Pb metal. While commercial zeolite has a surface area of ​​133.122 m²/g with adsorption % 98.84%.

Abstract: Armyworm (Spodoptera frugiperda) is a pest on several food crops including soybeans and corn. Armyworm control still emphasizes the use of resistant varieties and insecticides. Alternative efforts are needed to use more environmentally-friendly control methods, including the use of organic pesticides from biological materials. The control of Spodoptera frugiperda was carried out by testing the application of several types of organic pesticides at the same concentration of 50%. The purpose of this study was to determine the type of pesticide that was most effective in reducing mortality and attack from Spodoptera frugiperda. The study was started by doing mass propagation of S. frugiperda larvae, S. frugiperda larvae investment, and mortality test. The test used the Randomized Block Design (RBD) method using several organic pesticides consisting of five treatments, namely P0 (control), P1 (tobacco), P2 (shallot), P3 (garlic), and P4 (papaya leaves), P5 (blimbing wuluh leaves), P6 (Jatropa curcas fruit), P7 (lemongrass). The results of the application of organic pesticides on the mortality and attack rate of S. frugiperda had a significant effect. Organic pesticides that are most effective in reducing the mortality and attack rates of S. frugiperda are pesticides made from tobacco (Nicotiana tabacum). At a concentration of 50% organic pesticides made from tobacco can reduce the mortality of S. frugiperda up to 100%. Tobacco-based pesticides also received the lowest land attack rate at 46%. Organic pesticides applied to S. frugiperda larvae also affect the growth of S. frugiperda pupae.

Abstract: Along with the development of information technology, health care facilities in Indonesia have begun to adopt the use of electronic medical records (EMR). This adoption process needs to be documented as a best practice model for health care facilities in the transition process from paper-based medical records to electronic ones. This paper discusses specifically the adoption process of EMR in primary health care facilities. Focus group discussion, interviews, and documentation studies were carried out in one community health center and one general practitioner clinic in a Special Region of Yogyakarta, Indonesia, which is in the process of transitioning medical record management from paper-based to electronic-based. The transition process begins with the appointment of a key people leader, socialization related to EMR, comparative studies to other health facilities that have implemented EMR, determining the projected impact of EMR implementation, conducting needs analysis and design, starting the implementation of EMR, and conducting periodic evaluations. The transition process went through well by the two primary health care facilities which were the subjects of this study. There are several obstacles from the human resources and the technical side but they can be overcome in line with periodic evaluation and improvement.

Abstract: Recorded morbidity data in primary health care is different from data found in other health services. Therefore, in managing this data, ideally, a specific classification standard for primary health care services should be used, namely the International Classification for Primary Care (ICPC), where so far primary health care services in Indonesia are still using International Statistical Classification of Disease and Related Health Problems Tenth Revision (ICD-10) as a classification standard. This paper aims to integrate ICPC into an electronic medical record prototype in a family physician clinic. Focus group discussions, interviews, documentation studies, and observations were carried out with family physician clinic stakeholders regarding the need for ICPC implementation. The initial stage of implementation was carried out by data mapping between ICD-10 and ICPC. Furthermore, the data is displayed in a web-based electronic medical record where the officer only needs to do a codification with one of the classification standards and it will automatically display both the ICD-10 code and the corresponding ICPC code. Family physician clinic stakeholders welcomed the integration of ICPC in an electronic medical record prototype that made it easier for them to make disease index. Keywords: electronic medical record, ICPC, primary health care

Abstract: Indonesia was part of the first Spatial Data Infrastructures (SDIs) adopter since 1993 [8]. The motivation of SDIs development is to connect thematics spatial data among governments agencies in Local and Central Governments. Data sharing able to reduce data redundancy and allows spatial data to be used multiple times for various purposes [21, 12]. Since the issuance of Presidential Regulation No. 27 of 2014 concerning the National Geospatial Information Network, Central and Local Government develop their geoportal or web gis. This research aims to evaluate the web gis or geoportal at local level based on Perceived Ease of Use (PEU), Perceived Usefulness (PU), Attitude Toward Using (ATU), and Actual Usage (AU). The data source of this research is correspondent’s questionnaire answer. The questionnaire filled up by Development Planning Agency at Sub-National Level (Bappeda) in Indonesia. To obtain research results, the step of study is developing questionnaire, sending questionnaire, questionnaire recapitulation, hypothesis formulation, Strucured Equation Model (SEM) modeling, and Technology Acceptance Model (TAM) calculations. the questions in the questionnaire must refer to the four basic SEM models so that there is no blank value in any of the models. The benefits of this research can predict the adoption of SDIs at the local level and evaluate user respond about ease, convenience, and consistency in using geoportals at districts/cities level for sharing data. As a result of this research, TAM can evaluate the acceptance of geoportal at Local Government. In this research, TAM was able to assess the hypotheses used in this study. Among the 5 hypotheses, 3 hypotheses were accepted because they had a t-value greater than 0.05. Based on the hypothesis test results, it can be obtained that local governments can receive the convenience and benefits of geoportals or web GIS as a service for sharing spatial data.

Abstract: Determining the stimulus is the first step in experimental research to classify personality types based on electroencephalography (EEG), which is stimulated by a visual form known as visual evoked potential (VEP). Matching the personality type of workers to work activities is an organizational concern. The organization demands the concentration of workers to achieve work standards. Information system user interface is a visual form commonly seen by individuals working to carry out job descriptions. Interviews and observations were carried out on several workers as participants. The user interface design of the information systems used by them is the focus of this exploration stage. All participants involved are at the operational level. Their work activities are closely related to the processing of corporate data transactions. Activities of viewing, searching, entering, editing, and deleting data are their daily activities. Of these various activities, all agreed that the data entry process was an activity that required the highest concentration because the validity of the data was essential. Several data entry form designs come in a variety of forms. They were observed to see similarities to one another. The proposed stimulus is the general form of the overall observed data entry form design.