UIN (Universitas Islam Negeri) Sunan Kalijaga, Yogyakarta: E-Journal Fakultas Sains dan Teknologi
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Secure Naïve Bayes Classification without Loss of Accuracy with Application to Breast Cancer Prediction
No full textThe classification and prediction accuracy of Machine Learning (ML) algorithms, which often outperform human experts of the related field, have enabled them to be used in areas such as health and disease prediction, image and speech recognition, cyber-security threats and credit-card fraud detection and others. However, laws, ethics and privacy concerns prevent ML algorithms to be used in many real-case scenarios. In order to overcome this problem, we introduce a few flexible and secure building blocks which can be used to build different privacy preserving classifications schemes based on already trained ML models. Then, as a use-case scenario, we utilize and practically use those blocks to enable a privacy preserving Naïve Bayes classifier in the semi-honest model with application to breast cancer detection. Our theoretical analysis and experimental results show that the proposed scheme in many aspects is more efficient in terms of computation and communication cost, as well as in terms of security properties than several state of the art schemes. Furthermore, our privacy preserving scheme shows no loss of accuracy compared to the plain classifier
Effect of Maize Flour and Lactobacillus acidophilus Towards Save Tempe Soybean
No full textTempe is a traditional Indonesian food product made from soybeans (Glycine max) which is processed through the process of fermentation by mold. Tempe has constraints in its utilization, namely in its short shelf life and has a perishable nature. The purpose of this study was to determine the effect of corn flour on the storability of tempe by the addition of Lactobacillus acidophillus. This research method uses true experimental with two factors. The first factor was Lactobacillus acidophillus 1.5% (v / w) as treatment and 0% (v / w) as control. The second factor is the concentration of corn flour (w / w) respectively 0% (w / w) (T0), 0.4% (w / w) (T1), 0.8% (w / w) (T2) and 1.2% (w / w) (T3). The results showed that the addition of 1.5% Lactobacillus acidophillus and 0.8% corn flour to soybean tempeh was able to increase the shelf life of soy tempeh for a maximum among others 4 days
Addition of Illuminator Fiber Optic to Produce 3 Dimension Effects in Micrographic Observation Using Upright Microscope
No full textMicroscope is one of the tools used in practicums with high intensity. The use of a microscope adjusts to the object to be observed in order to obtain optimal micrographic results. Stereo microscopes are used to observe three-dimensional objects. Upright microscopes are used to observe two-dimensional objects. This study aims to combine the two advantages of stereo microscopy that can produce three-dimensional micrography with the advantages of an upright microscope that has a high total magnification. The method used in this study is an experimental method by adding an optical fiber illuminator in the use of an upright microscope and then applying it in various observations. The conclusion of this research is the addition of an optical fiber illuminator in observations using an upright microscope can replace the function of a stereo microscope; can produce three-dimensional effects and increase magnification in Daphnia magna micrographic observations
Analysis Student’s Mathematical Connection Ability of Class XII MIPA SMA N 1 Ngawen on Statistical Material
No full textThe material in mathematics relates to each other and also relates to daily life. Likewise with statistics is one of the materials on the subject of mathematics that also has a relationship with other sciences, and has been widely used in daily life. This research explains the ability of the mathematic connections of the grade XII students of MIPA SMA N 1 Ngawen on the statistical material. With the aim to know the student\u27s mathematic connection ability. The methods used are qualitative descriptive with research instruments in the form of tests and interviews. The research subject consists of 10 students with an analysis model on this research based on its mathematical connection indicators. From this research gained ability on the indicator linking between concepts on a mathematical material and indicators linking between mathematical concepts with daily life belonging to the high, and low category for indicators The mathematical concept with other sciences
The Effect of Peer-Support to Students’ Academic Stress in Boarding School with House System
No full textThe purpose of this research is to describe the level of academic stress and peer-support among students; in boarding school with house system; and to analyze the role of peer-support to students’ academic stress in boarding school with house system. Peer-support is measured by Child and Adolescent Social Support Scale-Academic (CASSS-A) with Cronbach α =. 97 (Sonia, 2014) as an independent variable and academic stress is measured by Educational Stress Scale for Adolescents (ESSA) with Cronbach α =.82 (Sun, 2012) as a dependent variable. Data collection was carried out at SMAN Sumatera Selatan as one one of boarding school that implements a house system in Indonesia with 60 out of 300 students as a sample in this research. Researchers use a cluster sampling technique. The result of this research shows that peer-support is on an average level; academic stress is on an average level that analyze by descriptive analysis technique. Simple linear analysis techniques are used as inferential analysis which shows that there is no effect of peer-support to students’ academic stress in a boarding school with house system, in other words, Ha in this research is accepted. As the researcher evaluated the result of this research, self-efficacy found as a mediator variable between social support (peer support, parent support, and teacher support) to students’ academic stress in a boarding school with house system and become a recommendation for upcoming research
Analysis Students Mistakes of Mathematics Major of IAIN Jember in Trigonometry Operations Precondition Calculus Courses
No full textNot a few students mathematics education of IAIN Jember experience obstacles in studying Calculus courses. This can be seen from many students who say that calculus courses are difficult and the results of the student calculus pretest. The lack of mastery in trigonometric operations which is a prerequisite for calculus courses is one reason. Therefore, error analysis is needed to identify the types of errors and the tendency of errors experienced by students in working on trigonometric problems which are the prerequisite material for calculus courses. Data collection in this study was carried out by the method of tests and interviews, meanwhile the data analysis used descriptive analysis. Through data analysis, it can be concluded that the errors experienced by students in working on trigonometric operations as a prerequisite for calculus courses are errors of fact, concept errors, and skills errors. Of the three errors, what turns out to be a tendency to error is a fact error. In addition, the cause of the error was the very lack of understanding of the concepts that exist in the material trigonometric operations
PREDICTING PLANE TRAFFIC WHILE TAKEOFF AND LANDING USING QUEUE MODEL AS THE MEASUREMENT OF ATC SERVICE LEVEL AT ADISUTJIPTO INTERNATIONAL AIRPORT YOGYAKARTA
No full textThis research aims to know the number of air plane traffic increase at Adisutjipto International Airport Yogyakarta until 2025, to know the average number of air plane traffic during rush hour at Adisutjipto International Airport Yogyakarta, and to know the service level of Air Traffic Control towards the air plane when takeoff and landing at Adisutjipto International Airport Yogyakarta. The researcher used Microsoft Excel and manual calculation in processing the data. The research results showed that the estimation of the number of plane traffic at Adisutjipto International Airport Yogyakarta experienced increase in 2018 with total plane traffic 78376 until 2025 it will increase with total plane traffic reaching 103209. The average number of air plane traffic when takeoff and landing at Adisutjipto International Airport Yogyakarta reach 9 planes in one hour. The service level of ATC at normal condition obtained result 15% while during rush hour reach 80%. The average number of air plane queueing at normal condition is 1 air plane per hour while during rush hour is 3 air planes per hour. The average number of air plane in the system during normal condition is 1 air plane per hour, while during rush hour is 4 air planes. The average time spent for waiting for the queue at normal condition is 4,57 minutes/air plane, while during rush hour reached 16 minutes/air plane. The average time spent for waiting in the system during normal condition is 8,57 minutes/air plane, while during rush hour is 20 minutes/air plane.Kata Kunci : Queue, Takeoff, Landing, Air Traffic Control, Air Plane
HALAL PRODUCT REVIEW BASED ON TOTAL QUALITY MANAGEMENT AND A SUPPLY CHAIN MANAGEMENT PERSPECTIVE
No full textHalal products are produced through toyyib processes so that they can be used and consumed by consumers, especially Muslims. Toyyib,which isa prerequisite for halal products, is translated asaform of guarantee of the procurement process, material handling, products, and transportation in accordance with Islamic law. The collaboration betweenproducers andsuppliers, distributors, and consumers is the key to implementing supply chain management (SCM) of halal products. Then, the participation of all business actors in the supply chain network to engage in continuous improvement is an articulation of the implementation of total quality management (TQM). The previous literature shows that research that examines halal products from the perspective of TQM and SCM is still limited. Therefore, this paper investigates halal products from the viewpoint of TQM and SCM. Both perspectives are used with the consideration that the toyyib process is not only the responsibility of the producer, but also the responsibility of the supplier, distributor, and consumer. The combination of TQM and SCM is expected to produce a production process for halal products that conformswith Islamic la
Heart Rate Monitoring System Abnormal Using a Microcontroller
No full textThe heart is an organ of the human body that plays an important role in blood circulation and is one of the bases for knowing the physical health of every human being. The heart rate monitoring system used by health institutions is quite good but it costs a lot of usages. In the design carried out by researcher produced a tool that can detect all ages process for 60 seconds. The results after heart rate detection provide condition information and BPM (Beat Per Minute) of the heart. This tool uses a pulse sensor as a heart rate detector with a 3x4 keypad as input for age data and is displayed on a 16x2 LCD with the results of heart conditions and BPM. During testing, the researcher tested approximately 20 respondents as counted tests to put their data in a comparison table. From the results of tests that have been done are classified into two systems testing. The final result of manually testing produces a relative error percentage of 2.40%. While testing, by comparison, using a stethoscope produces a relative error percentage of 1.65%
USB 2.0 Digital Camera Characterization for Optimizing the Making of High Power RGB-LED Fluorescence Imaging System
No full textThis research aims to obtain the focal length and radial and tangential distortion of a USB 2.0 digital camera. This research was conducted in three stages namely preparation of tools and materials, camera characterization, and data processing. The tools used in this study include a USB 2.0 digital camera and MATLAB R2013a software, while the object is a collimator board. Characterization of digital cameras is done through data collection with a distance variation of 3 cm until 15 cm, then the data obtained is processed using MATLAB R2013a software to obtain the focal length and radial distortion and tangential distortion values. The USB camera that used has the characteristic focal length and radial distortion and certain tangential distortion for each distance.