bluuebunny/crossref_metadata_2025 huggingface dataset:
Quien la hace ¿la paga? Servidores públicos y responsabilidad personal
Authors: Rivero Ortega Ricardo
Published: April 2021

Este trabajo explica las razones para mejorar las normas sobre responsabilidad de los servidores públicos, garantizando al tiempo la seguridad jurídica y el interés general. La correcta comprensión de las diferencias entre las responsabilidades penales, administrativas y contables es muy importante para alcanzar estos objetivos y prevenir la arbitrariedad.
Public administration’s challenges in order to guarantee the fundamental right of personal data protection in the post-COVID-19 era
Authors: Dominguez Alvarez José Luis
Published: April 2021

The irruption of COVID-19 has led to a multitude of deep-seated transformations, which go beyond the purely sanitary sphere, leading to major socio-economic changes, among which the evolution of traditional forms of administrative intervention or the empowerment and/or acceleration of the advances derived from the digital (re)volution stand out for their extraordinary importance. Thereby, in recent months we have witnessed the implementation of numerous initiatives aimed to alleviate the harmful effects of the pandemic by developing technological tools based on processing categories of specially protected personal data, such as health data, which raises important questions from the perspective of privacy and digital rights. The aim of this study is to carry out a detailed analysis of some essential elements, necessary to achieve the difficult balance between the promotion of technological instruments that contribute to control the effects of COVID-19 increasing the resources available to health authorities, and safeguarding the fundamental right of personal data protection.
Improvement of Benin Patties and The Effects of Added Some Flour on Physicochemical Properties
Authors: Geraldo Nasser Farid
Published: April 2021

The residue of peanut oil extraction in Benin entered manufacture of snack locally called kluiklui. This snack was obtained after deep frying defatted dough of crushed seeds. This paper dealt with exploration and determination of patties physichochemical characteristics linked to crunchy descriptors and induced effects of adding some flour such as banana flour and glucomannan to defatted groundnut cake. Obtained results showed that, incorporating flour at reasonable percentages 5 % (mass basis) improve crunchy quality and increase the indigestible fractions. However, recorded high value of remanant moisture 6.39 to 9.3% (dry basis) and fat 26.42 to 31.95% (dry basis), in the fried snack required further drying and improved oil cooking. The addition of flour increased the indigestible fraction in the kluiklui. Sample made with de-oiled peanut paste, glucomannan and type 3 resistant starch banana flour exhibited the highest indigestible fraction values attributed to the synergistic presence of the resistant starch, dietary fiber, protein and non-starch polysaccharides. The same sample exhibited lower fracturability and higher hardness than others. Results of the sensory quality evaluation showed that incorporation of flour into the kluiklui showed no significant differences in liking scores in terms of appearance, aroma, taste and overall acceptability; whereas, the texture and the color scores were significantly different than the control kluiklui. Although the use of flour does not arouse consumer’s acceptability. Flour-enriched kluiklui was significantly higher in all the sensory attributes considered. Overall, the flour-enriched kluiklui produced, was favorably and acceptable, thus showing prospects for industrial application of the flour-enriched kluiklui. In addition, the low resistance to rupture of flour-enriched kluiklui has confirmed their crispy behavior compared to those resulting from defatted pure cake. The resistance of the texture indicated that the production conditions were unfavorable for handling and transport and Overall, banana flour and glucomannan can be successfully incorporated into kluiklui to enrich its values contents.
Cluster Analysis of Earthquake's Data Clustering in Indonesia using Fuzzy K-means Clustering
Authors: Ahmad Ayyubi , Irsalinda Nursyiva
Published: April 2021

The earthquake is shocks or vibrations in the earth's surface because of shifting layers of rock at the base of the earth's surface. This natural phenomenon is common in Indonesia because it lies between Australian, Eurasian, Pacific plates, and it location surrounded by a ring of fire precisely. Therefore, this study aims to cluster earthquake events in Indonesia and describe the characteristics of each group based on clustering results. The method used is the Fuzzy K-Means Clustering. The clustering results obtained from clustering based on the depth, longitude, and latitude. In this study, the data used is the earthquake's data, which has a magnitude greater than or equal to 5 SR and only clumped by depth. Based on the Davies-Bouldin and Dunn index, the best clustering is 2 clusters which researchers cluster earthquake data in Indonesia into deep and shallow clusters.
Design and Characterization of Resistance Sensor to Optimize the Manufacturing of Infuse Water Lemon and Sprite Water Lymon Detection System
Authors: Alfiah Fia Ismi Nur , P Dinda Salsabila , Rakhmadi Frida Agung
Published: April 2021

This research was purposed to design and characterize a resistance sensor. This research was conducted with three phases: designing, manufacturing and characterization of resistance sensor. Sensor design was done using the 3D paint software. The tools used in sensor manufacturing were PCB, resistors, and copper wire. The tools used in sensor characterization were power supply, ohmmeter and samples of infuse water lemon and sprite water lymon. Sensor characterization was done by varying samples of 50ml, 100ml, 150ml. Data acquisition for each of samples was repeated 3 times. The result of this research was showed an average and unpredictability with the repeatability resistance sensor on the sample of infuse water lemon (1,215 ± 0,723) V with repeatability 99.05% while for samples of sprite water lymon amounting to (1,12 ± 1,345) V with repeatability 99.24%. And was retrieved the value of the transfer function for sample infuse water lemon is y = (4,757-0.03542x) and for sample sprite water lymon is y = (1.40666-0.0028666x). This tool can be developed as a detection tool using resistance-based sensors.
Manufacture and Characterization of Sensors for Optimizing the Detection of Water Contaminated by Sugar Mill Effluents in Waterways Around Sugar Mill
Authors: Leksono Eguh Budi , Hanif Amar , Rakhmadi Frida Agung
Published: April 2021

Waste produced by sugar factories will affect the quality of water in the surrounding environment. The manufacture and characterization of sensors to optimize the detection of water contaminated by sugar mill effluents in waterways around sugar mills has been carried out. This study aims to create and characterize resistance sensors as an alternative tool to distinguish water polluted from sugar factory wastewater and clean water from sugar mill waste. The method used in this study is the Arduino UNO-based water resistance sensor method which is carried out in three stages, the first is the preparation of tools and materials, the second is data retrieval, and the third is data processing. This study uses a water resistance sensor, Arduino UNO as a controller, and also equipped with LED indicators. The results showed that the Arduino UNO-based water resistance sensor can be used as a tool to distinguish water contaminated by sugar mill waste and clean water from sugar mill waste.
Design of First Generation of Sunan Kalijaga’s High Power UV-LED Fluoerescence Spectroscopy System
Authors: Rakhmadi Frida Agung , Rifai Rochan , Khamidinal
Published: April 2021

Research on design of the first generation of Sunan Kalijaga’s high power UV-LED fluorescence spectroscopy system has been done. The purpose of this research was to make the first generation of Sunan Kalijaga’s high power UV-LED fluorescence spectroscopy system. This research was done in two steps, designing and manufacturing of the system. The result showed that a fluorescence spectroscopy system has been made succesfully using high power UV-LED of waveleght 365 nm as excitation source and webcam  M-Tech WB100 as sensor. The data acquisition software was successfully created using LabVIEW.
Effect of Marine Water to Ward Betta Sp. Survival
Authors: Febriani Anya Via , Khotimah Khusnul , N. Nurman Kirat Al , Luthfi Muhammad Jafar
Published: April 2021

Betta fish (Betta sp.) Is a many fish which is traded as an ornamental fish at a price that is quite affordable in Indonesia. Habitat that is often found in betta fish is freshwater such as shallow waters, rice fields or tributaries. This study aimed to determine the effect of marine water giving on the survival rate of betta fish (Betta sp.). This research conducted at the Biology Laboratory of UIN Sunan Kalijaga, Yogyakarta in October 2019 with experimental research methods. The design used is RAL (Rancangan Acak Lengkap) with 5 treatments. The dose used is treatment with a dose of treatment A 0%, treatment B 25%, treatment C 50%, treatment D 75%, and treatment E 100% with maintenance for 6 days. Measured variables include life span, behavior (ethology), and water quality. The results showed that the life span of betta fish treatment A can live for 144 hours (still alive), treatment B can live for 144 hours (still alive), C treatment 8 hours 21 minutes, treatment D 2 hours 20 minutes, and treatment E 50 minutes. The observations of the treatment behavior A was calm, treatment B was active, treatment C was active, treatment D was aggressive, and treatment E was aggressive. Water quality used in the study is in the temperature range of 29o C-30o C and pH 6-8. The conclusion of this study is betta fish can survive at 25% marine water dose, while 50% -100% (absolute) treatment cannot survive, due to several factors.
Substitution of Chemical Fertilizer Using Natural Hormone and Cow Biourine On Growth and Yield of Shallot (Allium Cepa L.)
Authors: Lagiman  , Nugraha Ihvan Mei , Suryawati Ami , Sutoto Supono Budi
Published: April 2021

The use of natural hormone of sprout extract, coconut water, and banana stem extract and application of cow biourine has been introduced as an innovation to reduce the use of chemical fertilizers to increase the productivity of shallot. This study aims to compare the growth and yield of shallot with chemical fertilizer treatment and that of shallot treated with combination of natural hormone and cow biourine. The study was conducted in Temon Wetan, Temon, Kulon Progo, Special Region of Yogyakarta using a Complete Randomized Block Design, which consists of two factors and one control (chemical fertilizer). The first factor is a natural hormone: sprout extract, banana stem extract and coconut water. The second factor is the concentration of cow biourine: 30%, 40%, and 50%. Data were analyzed using diversity at 5% level, Orthogonal Contras at 5% level and DMRT Test with 5% level. It was revealed that the control group with a combined treatments was not significantly different from the growth and yield of shallot of the group with chemical fertilizers. Types of treatments with natural hormone and cow biourine concentrations provided the same growth and yield as that of chemical fertilizer.
Effects of Culture Media on Viability of Beauveria Bassiana and Its Pathogenicity Against Coffee Bean Borer (Hyphotenemus Hampei)
Authors: Brotodjojo R.R. Rukmowati , Solichah Chimayatus , Widyaningtyas Anindita , Wicaksono Danar
Published: April 2021

Coffee bean borer (Hypothenemus hampei) attacks coffee when it is still in the plantation until it is in the storage that reduce the quality of coffee. To avoid the negative impact of chemical insecticides, biological control is carried out by using entomopathogen Beauveria bassiana. The aims of this research were to study the effects of culture media on viability of B. bassiana and its pathogenicity in controlling H. hampei. Laboratory experiment was arranged in Completely Random Design (CRD). This research used 8 (eight) treatments namely KO: Distilled water, Kk: Lamda Sihalothrin 25 EC (Chemical Insecticide), B1: 10 g/L B. bassiana cultured in rice bran media, B2: 20 g/L B. bassiana cultured in rice bran media, B3: 30 g/L B. bassiana cultured in rice bran media, B4: 10 g/L B. bassiana cultured in corn media, B5: 20 g/L B. bassiana cultured in corn media and B6: 30 g/L B. bassiana cultured in corn media. Each treatment was applied on coffee beans infested with 20 H. hampei and repeated 4 (four) times. The results showed that rice bran media produced the highest number of spores with highest viability. The application of B. bassiana could killed H. hampei. The concentration of 30 g/L of B. bassiana cultured in rice bran media resulted in the fastest mortality (Mortality time and Lethal Time 50%) of H. hampei.
Dragonfly and Damselflies at Gajahwong River in D.I. Yogyakarta Urban District
Authors: Zaman Mokhamad Nur , Purwanto Pratama Bimo , Iman Dharfan Ihlasul , Farida  , Sari Astri Martha , Maulany Siti Lathifah , Luthfika Muhamad , Rofiah Ngalimatur , Halimah Giat Siti , Cahya
Published: April 2021

Dragonflies play an important role as a bio-indicator of environmental cleanliness and controller of other insect populations in nature. This study aims to reveal the population of dragonflies in the Gajah Wong river in urban areas in Yogyakarta. The method used is an exploratory method that is by exploring the Gajahwong river which is located between the southern ring road at Giwangan to the northern ring at Catur Tunggal. The results showed that 16 types of dragonflies and 9 types of damselflies were found there. The species which has the most number is Orthetrum Sabina with 253 individuals, and the less type is Gynacantha Subinterrupta, and Zyxomma Obtusum which only found one individual for each. Whereas for Damselflies most species is Pseudagrion Rubriceps with 255 and Ischnura senegalensis is the less which only has one individual.
Thickening of The Blekok Finger Bone (Ardeola speciosa)
Authors: Tabrany Aghnia Nafi’Audi , Wijaya Monica Tasya Risma , Jannah Umi Miftakhul
Published: April 2021

Ardeola speciosa, also known as the Blekok bird, is an Aves group that has the Ardeola order. Ardeola speciosa has a size of about 46 cm, long strands of white fur on the front and back of the head to the back. The back color is blacker. Lower body and pure is white wings. It has a gray and yellow beak with a black tip. The beak is yellow with a black tip. And has yellow feet. Each leg on Ardeola speciosa has four toes consisting of segments on each finger. On this occasion we will examine the fingers of the Blekok bird. This research was used to examine the thickening of the finger bones, before being examined the finger bones were cleaned until clean and visible bones, then cut each finger in a transverse position carefully so that the part under study was not damaged. Then it is observed in each bone whether there is thickening in the bone wall.
Anatomical Study of Bat’s Phalanx Bone
Authors: Nurrizki Fani , Ristiani Hanifah Ika , Ambarwati Novita , Luthfi Muhammad Jafar
Published: April 2021

Bats (Pteropus sp) are nocturnal animals. Bats are mammal that are able to fly, actively foraging at night. During the day time bats spend time for sleeping. It aims to keep the wings membran from sunlight. The habitat of this bat is on large trees. The foot of the bat is adapted to hang upside down, that causing an action against phalanx that calls pressure. Each of phalanx receives a different pressure so that it affect the anatomical structure. This condition present a biomechanical. This study aims to know the effect of pressure on the phalanx. Observation are made by cleaning the phalanx skin and cutting the bones and then seen under the microscope with a magnification of 5x, measurement are taken. The result show that the pressure affect the phalanx anatomical structure that is different thicknesses in each phalanx.
Efficient Compost Fertilizer with Addition of Fatty Acid Results of Used Cooking Oil Saponification Reaction
Authors: Ardiyanti Aprilia Dewi , Adhitama Lukman , Wahyutiyani Rina
Published: April 2021

The development of the times accompanied by technological developments have brought humans to the Post Modern era. The industry is growing rapidly in all lines, both from the sectors of production of goods, textiles, materials and even penetrated the food sector. Food innovations have sprung up rapidly and creating waste. One of them is vegetable and fruit waste. However, this waste can be processed into compost because the content of Nitrogen, Phospor and Potassium (NPK) which is a basic need for plants to carry out photosynthesis. Processing of vegetable waste into compost is done by adding EM4, molasses and remaining rice washing water. Fermentation is carried out for four weeks to produce compost. Other waste arises from the food industry which produces foodstuffs by frying. Used cooking oil left over from the frying pan is often discharged into the environment to cause pollution. This can be more severe if the disposal is in residential areas. Saponification reaction using natrium hydroxide (NaOH) can separate glycerol and fatty acids from used cooking oil. Fatty acids from the separation of solid waste cooking oil can purify the NPK content in compost, so that when mixed with compost an efficient compost can be produced and has a high NPK percentage. The purpose of this study is to obtain accurate information from literature studies to determine the percentage of NPK in compost after adding fatty acids from used cooking oil.
Manufacture and Characterization of Sensor for Optimizing the Manufacture of Resistance Sensor for Pure Orange Drink and Unpure Orange Drink
Authors: Widyaningrum Siti Annisa , Ismawati Ratri , Rakhmadi Frida Agung
Published: April 2021

This research was purposed to design and analyze a resistance sensor. This research was done by three steps which are designing, manufacturing and characterizing of resistance sensor. Sensor design was done by using Fritzing software. The tools we used in manufacturing sensor were PCB, resistor, and copper wire. The tools we used in sensor characterizing were power supply, CRO and samples of pure orange drink and unpure orange drink. Sensor characterizing was done by varying samples of 50 ml and 100 ml. Data acquisitiom for each samples were repeated five times. Data generated from the sensor in the form of voltage. The data result of measurement were calculated by its average and its uncertainty. For pure orange drink 50 mL (2.274 ± 1.137); 100 mL (1.688 ± 0.844) and for unpure orange drink 50 mL (2.582 ± 1.291); 100 mL (1.852 ± 0.926). Therefore in the future we can make quality control system of orange drink by optimizing the manufacture of resistance sensors with high-grade characteristics.
Business Process Model Variations in Islamic Boarding Schools Using Requirements Analysis Method
Authors: Nuriyanti Fitri , Izzah Iffatul , Azizah Munajatul , Yaqin Muhammad Ainul
Published: April 2021

The business process at a boarding school is a collection of all the detailed activities that have been arranged in such a way as to solve the existing problems so that the objectives set can be met. There are development standards that can be used as a reference to build architecture and business process models at a boarding school. Every business process has planned many ways to be able to obtain goals precisely. Therefore variations are formed in the business process models. Business process models of variations are a collection of business process models that have the same goals in different ways. Variations in the business process models are needed to achieve the right goals in a variety of ways according to existing resources and needs. From all reviews of the variations, it is necessary to have a cyclomatic complexity to find out how complex the business process models is and to maintain the simplicity of the business process models. This study uses the requirements analysis method, which is the intensive interaction stage between the system analyst and the system user community (end-user), where the system development team shows its expertise to get user feedback and confidence so that it gets good participation. The results of this study are a collection of variations of business process models that have a level of complexity not much different from one variation, with another on each standard applied.
Heart Rate Monitoring System Abnormal Using a Microcontroller
Authors: Zein Fuad , Utama Shoffin Nahwa , Taufiqurrahman
Published: April 2021

The 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
Authors: Apriani Atika , Rifai Rochan , Rakhmadi Frida Agung , Khamidinal
Published: April 2021

This 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.
Deploying an Application to Cloud Platform Using Continous Integration and Continous Delivery
Authors: Albaihaqi Muhammad Fauzan , Wilda Anisa Nurul , Sugiantoro Bambang
Published: April 2021

Cloud Computing is the best way for bussiness owner deploy an application to reduce cost issue because it is implement pay as you go concept. Generally, an application on production level or deployed into cloud instance should not have any error or bug. It should be tested and maintain properly. The problem when an application have intensive development that takes more effort to test the application and deploy. So, need a strategy to deploy an application into cloud instance to make the proccess more efficient. Nowadays, Version Control System (VCS) platform provide Continous Integration and Continous Delivery (CI/CD) feature. Users can utilize that platform to perform automated test and deployment easily. This reasearch purposed to examine how to use CI/CD feature and evaluate it in case of deploying web application to Cloud Platform. Researcher use Gitlab wich is provide CI/CD feature for free and deploy the app to Amazon Web Service. The researcher also utilize docker container to accommodate all processes. The result are Continous Integration can improove application quality because most lines of codes are tested using unit or feature test scenario. Using CI/CD feature improove security issue of deployment. Deployment proccess run automatically without human intervention so it will reduce human error factors. This feature also ensure high availability of an application. Deployment proccess will take zero downtime. The application can quickly update without any downtime and configuration. Last, docker container take an important role for deployment of application into cloud instance.
Implementation of Model-View-ViewModel (MVVM) Architecture Pattern in the Sistem Informasi Akademik UNIDA Gontor Mobile Application
Authors: Arif Muhammad Syakir , Musthafa Aziz , Muriyatmoko Dihin
Published: April 2021

Software architecture primarily tuned for moderating the rising software complexities and changes. Model-View-ViewModel (MVVM) is a software architectural pattern that facilitates a separation of development of the graphical user interface from the development of the back-end logic (the data model). University of Darussalam Gontor (UNIDA Gontor) is having an Academic System called Sistem Informasi Akademik (SIAKAD) which supports the management of its college’s data administration. Currently, the SIAKAD UNIDA Gontor’s performance is still far from optimal, mainly because some of its features aren’t user-friendly yet, especially when the SIAKAD UNIDA Gontor accessed from the mobile devices. Therefore, this research aims to implement the MVVM architecture pattern in the SIAKAD UNIDA Gontor mobile application, to increase its user-friendly aspect, especially for Android device users. This research is carried out with Waterfall development method, using Kotlin programming language and utilising Android Jetpack. Results from the app testing with Black Box method show that the application is running well and have no error. Next, results from the questionnaire distributed to the users (students, lecturers and BAAK staffs) show that the application run well and satisfying. From those trial results, show that the implementation of MVVM on SIAKAD UNIDA Gontor Android application has been successful according to the scenario and ready to be applied in the even semester of 2019/2020 campus’ academic year and so on (https://play.google.com/store/apps/details?id=com.amoled.sidago). Further research and development, can be directed to the addition of new features and can support another mobile operating system, such as iOS, Tizen, Harmony OS, etc.
Identify Maths Learning Difficulties on the Set Subject
Authors: Alfiyansah Ahmad Faris , Fitriani Annisa , Narimoati Hega , Handayani Meli
Published: April 2021

In conducting students' learning activities that do not always work, there are often things that cause failure. The study aims to describe the difficulties students have experienced and to study the mistakes of the students in working on the tests in mathematics learning on the set subject. This type of research is a qualitative descriptive with a case study approach. Data collection techniques with problem instruments, interviews, and documentation. The legitimacy of data using technique triangulation. Data analysis through the data reduction phase, data presentation, and withdrawal of conclusions. The research was conducted with the subject of his research 30 students. The results showed that the type of difficulties experienced by students in the form of 1) difficulty in understanding the problem is the inability of the students to interpret the mathematical symbols on the subject of the set, 2) difficulty transforming that is the inability of students determining the set formula, 3) difficulty in the completion process is that students are not able to perform binary counting operations to solve the set problem. Then it can be concluded the types of difficulty learning mathematics that students experience in the subject of the association can be classified into 3 types, namely difficulty in understanding the problem, difficulty transforming the problem, and difficulty solving problems.
Forecasting and Effectiveness Analysis of Domestic Airplane Passengers in Yogyakarta Adisutjipto Airport with Autoregressive Integrated Moving Average with Exogeneous (ARIMAX) Model
Authors: Khairunnisa Sarah , Sa’dah Nusyrotus , Isnani  , Artika Rohmah , Prihantini
Published: April 2021

Airplane is one of the public transportations options that many people choose when traveling long distance. Nowadays, it is notes that the number of passengers domestic flight has increased from the previous months. This increase, especially occurs on the holidays, such as year-end holidays, Eid, and others. The increase of airplane passengers is inversely proportional to the number of available airplane. Forecasting the number of airplane passangers is necessary to prepare additional facilities when there is increasing passengers. This research focused on forecasting domestic airplane passengers at Adisucipto Airport, Yogyakarta using ARIMAX method to forecast the number of domestic airplane passengers and the effectiveness of domestic passengers at the international airport. The purpose of this research is to determine the best ARIMAX model and forecast airplane passengers in Adisucipto airport. The results will show the effectiveness of ARIMAX model with the effect of calendar variance on domestic airplane passenger forecasting at international airport. Based on the result of AIC and RMSE values, it shows that the ARIMAX(1,0,1) model with calendar variation is better than ARIMA(1,0,1) in predicting the number of airplane passengers at Yogyakarta Adisutjipto airport.
Teaching an Undergraduate Statistics Class in Digital Era
Authors: Rohayati Siti , Agustini Asrifatun , Abdullah Ahmad Anis
Published: April 2021

Nowadays technological developments are increasingly creative and tend to move towards digital. Technological developments have a major impact on the process of statistical learning at the University. In addition, many students lack understanding of statistical concepts and do not like statistical learning. In this paper, it is given a way of involving technology in the undergraduate class statistics teaching and what statistical concepts are needed in this digital age. Thus, it is hoped that the teaching of the undergraduate statistics class becomes something interesting and fun.
The Application of Trigonometry on Problem Solving Strategy
Authors: Ratnasari Gamarina Isti
Published: April 2021

This study aims to: (1) describe students' problem solving strategies to solve trigonometric problems using a clinometer media and (2) comparison of the strategies used against student analysis in processing the data obtained. This type of research uses qualitative research. The population of this study was all students of class X consisting of 7 classes, with 39 research subjects. Data collection is done by direct observation of the results of student work. The results showed that (1) students' problem solving strategies to solve trigonometric problems using a clinometer media were divided into two strategies: students pay attention to angular size rather than distance and students pay attention to distance than angular size to determine the height of an object and (2) the strategy used students paying attention to angles rather than distance show more accurate results when students use angles than students pay attention to distances rather than angles to determine the height of an object.
Go-Business Application: Optimization of Young Entrepreneurs as A Mobilizer of Economy
Authors: Hastanti Atika Dinna , Khusna Febriana Aminatul
Published: April 2021

This research discusses about the prototype of the Go-Business Application design for optimizing young entrepreneurs as a economic movement. In modern era, the technology have developed rapidly into various fields for instance, education, social, political, cultural, and even economic. This is a great opportunity for entrepreneurs to get their market through technological advancements. Based on data from the Central Statistics Agency (BPS), the percentage of the population using the telephone continues to increase, until 2017 reaching 59.59%. The internet usage also increased during the 2013-2017, which was agreed from a comparison with the population accessing the internet in 2013 around 14.90% to 32.34% in 2017. This is consistent with the topic that we developed by science, computer and technology Information. This research use descriptive method and questionnaire. Descriptive method is used to describe the phenomena that are taking place now or in the past, and collect data from journals and other sources. Then the questionnaire method, the implementation of this method is by asking questions to respondents about the research variables to obtain information. This was to obtain valid and targeted data, also to find out the effectiveness of the Go-Business Application for optimizing young entrepreneurs as a mobilizer of economy.
School Performance Measurement Based on Business Architecture
Authors: Shabrina Idzni , Prahastina Rista , H. Fifit Yulianti Amanah , Yaqin Muhammad Ainul
Published: April 2021

School performance measurement is the process of collecting, processing, analyzing and interpreting data about the quality of work carried out by school members in carrying out their main tasks and roles. Measuring the performance of an organization will encourage the achievement of objectives in the organization. A performance measurement system must be built so that the information obtained is as much and as accurate as possible. Business architecture is a formal representation and tools as well as information for business professionals in assessing, changing and designing a business. Business modeling will show the relationship of organizational behavior with the information needed, and the relationships that occur within the organizational structure, so that business architecture is the main thing that must be completely defined before continuing on to the next stage. To encourage schools to achieve goals and design business strategies that are in line with the objectives, this research will propose a system for measuring school performance based on business architecture.
Potentials and Challenges of Existing Plastic Pollutant Biodegradation Using Bacteria in Jakarta Bay
Authors: Nurdhy Syarifatun Nisa
Published: April 2021

Research conducted by Research Center for Marine and Fisheries Product Processing and Biotechnology in the three different locations namely Tarakan, Tanjung Balai Asahan, and Jakarta Bay, has identified that Jakarta Bay had the highest plastic debris concentration among the others. Jakarta Bay is directly connected to Thousand Island National Park sea waters, in which large parts of it are marine conservation area. Thus, plastic pollutants potentially threat Jakarta Bay and Thousand Island National Park abundant biodiversity and underwater marine ecotourism. The tools such as garbage transport barges owned by Special Region of the Capital Jakarta Province are not enough to overcome the existing plastic debris. 21 tons waste end up to Jakarta Bay every day. There should be further research about solving existing plastic waste with other technology than using machine. This literature study aims to review and investigate the potentials and challenges of utilizing bacteria to combat existing marine plastic pollution in Jakarta Bay. Established researches showed that some bacteria strains isolated from plastic debris in some sea waters and sediments around the world are capable of degrading polyethylene (PE), polypropylene (PP), and possibly polystyrene (PS). Unfortunately, reports involving plastic degrading ability of bacteria isolated from plastic wastes in Indonesian sea waters, let alone Jakarta Bay, are hard to find if any. There were only researches about isolated bacterias from Jakarta Bay, which were capable of degrading oil spill. Further research about isolated bacteria from plastic debris of Jakarta Bay, should be established. It can be used to identify bacteria strains or consortia that are able to degrade plastic debris with environmentally friendly byproducts. There will be possibilities that oil spill degrading bacteria isolated from Jakarta Bay can also degrade plastics, as both oil spill and plastics are made up from hydrocarbon chains. A recently published research has revealed that Alvoranicus borkumensis isolated from marine plastic debris in Mediterranean Sea was able to degrade PE, while previously other study has isolated it from Thousand Islands sea waters and found it able to degrade marine oil spill. The expression possibility of DNA (deoxyribonucleic acid) sequence coding extracted from wax worm Galleria mellonella into widespread indigeneous Jakarta Bay bacteria and bacteria isolated from plastic debris in Jakarta Bay, can also be taken into account.
Enhancement Technology for Electrospray Polyvinyl Alcohol (PVA) Nanoﬁber from Zuheros Nano: A Preliminary Study
Authors: Mostapha Marhaini , Gunawan Win Indra , Sutriyono  , Widayanti  , Yuniati Anis
Published: April 2021

Polyvinyl alcohol PVA nanofiber is a biocompatible material that has numerous potential in health application include as bone and tissue implant, anti-fungal, anti-microbial, air filter and waste water treatment. In this study, the electrospin fiber has successfully fabricated byusing Zuheros Nano-electrospin machine. This is a new generation of electrospin machine which offer a faster, safer, controlled spinning conditions and highly reproducible. The 6 and 8 wt % of PVA was prepare and operated at different electric field of 15 and 20 kV at different distance between tip to collector (TDC) of 15 and 17cm.The physical characteristics of electrospin fiber were observed under optical microscope. Result shows that at higher voltage 20 kV, TDC 17 cm of 8 wt % PVA has produce a smooth, fine and well arrange of fibers formation compared to other electrospin parameter. The PVA electrospin membrane was successfully formed as spray durations increased to 90 minutes. The different polymer concentration (wt%), TDC (cm) and electrospray voltage (kV) effects the PVA nano-fiber formation.
Effect of Mathematics Anxiety and Student Learning Styles on Ability to Solve Mathematics Problems of Class XI Madrasah Aliyah Negeri (MAN)
Authors: Novikasari Ifada , Pamuji Slamet , Maulana Muhammad Arsy
Published: April 2021

The ability to solve mathematics problems is an ability needed in the learning process. Mathematic anxiety and student learning styles are among the factors that influence the success of mathematics problem-solving ability. By paying attention to mathematics anxiety and learning styles possessed by students, it is expected that the ability to solve mathematics problems will increase. This research is a field research type with an Ex Post Facto method and multiple linear regression statistical data analysis techniques. Data was collected through mathematics anxiety questionnaires, student learning style questionnaires, and mathematics problem-solving skills of students at Madrasah Aliyah level. The results show that (1) there is no significant effect of mathematics anxiety on the ability to solve mathematics problems with the tcount is 1.537 and the significance level is 0.126 ≥ 0.05. (2) there is a positive and significant effect of learning styles on the ability to solve mathematics problems with the value of tcount is 2.457 and a significance level of 0.015 <0.05.
Development of Thematic Educational Game Eduklok Chemistry Based on Indonesian Local Wisdom
Authors: Cahya Iis Nilam , Astuti Ratih Dwi , Hanif Septiana
Published: April 2021

The purpose of this research is to develop a media in the form of educational games that contain local wisdom content, culture, culinary, and health, which are packaged in a snake and ladder game. In addition, this study also aims to test the quality and analyze user perceptions of the "Eduklok Chemistry" game product that has been developed. The method used in this research is to adapt the ADDIE model which includes the stages of analysis, design, and development. The quality of the developed product is tested by the expert judgment method using an expert assessment instrument to get a quality score. The study of users' perceptions of the product is carried out by the method of analyzing user responses to assess user perceptions in the form of response data. Quality test results by material experts that the product developed is included in the category of Very Good (SB) with a percentage of ideals of 100%. The results of quality tests by media experts on products developed are included in the category of Good (B) with a percentage of ideals of 76.92%. Meanwhile, the results of user perception studies show that most users respond Very Good (SB).
Development of Teaching Material of Sony Vegas Media Based with Anchored Instruction Models for Tennis Course in IKIP Budi Utomo Malang
Authors: Susanto Ratno , Riyanto
Published: April 2021

The purpose of this study is to develop teaching materials of Sony Vegas media based with anchored instruction models. The development of this teaching material used the Research and Development (R&D) method with the 4D model (Define, Design, Develop, and Dessiminate). This research was started from the define stage where at this stage identification of material concepts were carried out in the textbook. Furthermore, the design and manufacture of Sony Vegas media based teaching materials with anchored instruction models was carried out in the design phase. After the teaching materials have been designed and made, the development stage was carried out, namely product validation by experts and product trials in the lecture process. Based on the results of this develop phase, it can be stated that the product was valid and practical, so it can be continued to the dessiminate stage. Based on the results of the validation of media experts, material experts, and small group trials. As a whole the development of teaching material with Soni Vegas-based is appropriate to be used as teaching material with an average value of  96.17% and it  includes in the criteria of "Very Valid”.
The Effect of Blended Learning On Physics Learning Outcomes of Students in SMA N 1 Sewon Class XI Rotation Dynamics
Authors: Widyasari Rohmah Riya , Purwanto Joko
Published: April 2021

This study aims to determine the effect of blended learning on students' physics learning outcomes on rotational dynamics material. This research is a Quasi Experiment with Group Design Pretest-Posttest Control. The research variables include the independent variables in the form of blended learning and the dependent variable in the form of learning outcomes. The population in this study were all grade XI students of SMA N 1 Sewon in the 2019/2020 school year. Sampling was done using the Simple Random Sampling technique, selected class XII IPA 5 as an experimental class and class XII IPA 6 as a control class. Data collection techniques with the form of tests with the test instruments used are written tests in the form of multiple-choice questions. Data analysis techniques used are nonparametric statistics, Normalized-Gain, and effect size. The results showed that blended learning did not affect students' learning outcomes in rotational dynamics material. Treatment is said to be influential if there is a difference in the increase in student physics learning outcomes between the experimental class and the control class as indicated by the rejection of H0 in testing the hypothesis using the U-test. Based on the U-test analysis of the posttest data of the experimental class and the control class the significance value obtained is 0.074, which means it is greater than the significance level so that the given H0 is received or there is no influence from blended learning treatment. The average N-gain of the experimental class was 0.38 and the control class was 0.33. N-gain of both classes is in the medium classification. Effect size test results of 0.22 are in the classification of low effects so that the difference in the increase in physics learning outcomes of students in the experimental class and the control class is not significant.
Comparative Study of Paradigm on Character Education Perspective by Paulo Freire and Ki Hajar Dewantara
Authors: Putri Shafira Arifah
Published: April 2021

Nowadays, when science and technology continue to grow rapidly, character education precisely more gets eroded. It shows, there has been morals degradation in the middle global mainstreaming. The authors using of character education prespective by two phenomenal figures to be discussed, Paulo Freire and Ki Hajar Dewantara. Both give a more attention to the paradigm education that is able to answer new challenges. Freire thought to give a solution by is leaving magical and naive education, switch to concept critical education that freed humans leads to a new colour in the proggressive change. Whereas, thought Dewantara to show a concept “trilogi” that is how the role family, school, and public able to formation movers character and children mentality along through system “among” based on Ing Ngarsa Sang Tuladha, Ing Madya Karsa, and Tut Wuri Handayani. The method that is used in this research analytic comparative method, that is by to analyze in a looking for sides similarity and difference of thought. The purpose of this research is to describe character students towards the future better.
Yudicial Review of Teacher’s Certification Implementation in Magelang City
Authors: Mulyani Sri , Prabowo Wahyu
Published: April 2021

This study aims to analyze the suitability between the implementation of primary school teacher certification policies with the laws and regulations in the city of Magelang. This study used a qualitative research method by conducting in-depth interviews, observation and documentation of research objects with data analysis techniques with interactive models proposed by Milles, Huberman and Saldana. The results of the analysis show that (1) Structural analysis shows that the implementation of the Teacher Certification Policy involves many organizations from the central government to regional governments with greater authority to the central government than regional governments, 2) Substance Analysis shows that the contents and material of the policy are not entirely applicable in the regions because there are variations in the conditions of schools and teachers in each district and city. Therefore, we need policies that specifically regulate the implementation of teacher certification policies in the regions. 3) Cultural analysis shows that there is no rejection of policy implementation due to the provision of professional allowances for teachers who have received an educator certificate. However, equity is needed in determining the quota of teachers receiving education certificates in order to meet the principles of justice and equity.
Amne Gine Mafatanon (We're Brothers) “The Concept of Brotherhood Amid Religious Differences Between Gamta Village and Magei West Misool District of King Ampat”
Authors: Lisnawati Agustin , Wihel Muhammad Romli
Published: April 2021

This article aims to understand how the "Amne Gine Mafatanon" treats brotherhood amidst religious differences between Gamta village and Magei village West Misool District of King Ampat Islands. Gamta Village is a Muslim village and Magei Village is a Christian village, but both villages are adjacent to the island surrounded by oceans and forests, and the two villages are separated by a road about 300 meters. In this article there are two focus questions, first how do the people of the village of gamta and magei village understand the relationship between the brothers? Secondly, why do the people of Gamta village and Magei village maintain a brotherly bond between the two? Thirdly, how is the traditional model that embraces the brotherhood values of the village gamta and magei village ?. This article usesmethods field research by obtaining primary and secondary data as supporting data in the writing of this article. The results of this study cover the ways in which the people of Kampung Gamta and Kampung Magei engage in brotherhood amidst religious differences and look at the values inherent in the tradition shared between these two villages as a bond of brotherhood.