bluuebunny/crossref_metadata_2025 huggingface dataset:
Penerapan Metode Haversine Formula Pada Pencarian Lokasi Fasilitas Kesehatan Terdekat
Authors: Hidayati Rahmi , Mutiah Nurul
Published: May 2022

Health facilities are places used to provide health services to the community. Types of public health facilities include hospitals, health centers, clinics, doctor's practices and pharmacies. Knowing the location of the nearest health facility is important in an emergency situation. One way to access health facility information quickly and easily is by using an application on a smartphone. This study builds a mobile application to locate the nearest health facility using the haversine formula. The use of the haversine formula allows users to search for the nearest health facility based on the user's current location. The application that was built can also display information in the form of a sequence of the nearest health facilities based on location data and the type of health facility selected. Testing on the functionality of the application interface was carried out using the black box method, and the test results were obtained based on user ratings of 82.38%, which means that the application built is in the very good category in terms of application interface functionality.
Sistem Monitoring Tekanan Pada Pipa Air Menggunakan Arduino Uno Pada Jaringan Lora 920-923 Mhz
Authors: Pramono Sigit , Yuliantoro Prasetyo , Pamungkas Savena Rinda
Published: May 2022

In everyday life water is one of the components that is very important and becomes a basic need for human life and other living things. Of course, when flowing water to all corners there are obstacles such as leaks in water pipes that can be caused by air pressure. These leaks can cause the flowing water to get dirty or even not flow all the way to the destination. Therefore, this study will be created a pressure monitoring system on water pipes that will use pressure transmitter sensors that serve to read the pressure on water pipes using LoRaWAN data communication, this communication is used because the device can communicate up to a distance of 5 to 15 kilometers. To connect or send data from the sensor to LoRa requires an Arduino uno that will process the data from the sensor to be used. To store data using the Antares platform. This research is useful for monitoring pressure on water pipes and minimizing leaks in pipes. By using the method of calculating linear regression equations obtained a very accurate value for water pressure readings on pressure sensors that are 98.9%, while the results of testing the values received signal strength indicator (RSSI), signal noise radio (SNR) and packet loss are interconnected, in the value of RSSI and SNR the smaller the packet loss the more data is lost. The use of Spreading Factor values can also be taken into account if you want a longer range with a small packet loss result.
Komparasi Performa Tree-Based Classifier Untuk Deteksi Anomali Pada Data Berdimensi Tinggi dan Tidak Seimbang
Authors: Kurniabudi Kurniabudi , Harris Abdul , Veronica Veronica
Published: May 2022

Anomaly detection is one solution to overcome the issue of data network traffic security, but is faced with the challenge of high data dimensionality and imbalanced data. High-dimensional and imbalanced data can affect the performance of the detection system. Therefore we need a feature selection technique that can reduce the dimensionality of the data by eliminating irrelevant features. In addition, the selected features need to be validated with the right classification algorithm to produce high anomaly detection performance. The purpose of this study is to produce a combination of feature selection techniques and appropriate classification algorithms to produce a system that is able to detect attacks on high-dimensional and imbalanced data. Chi-square feature selection technique was used to eliminate irrelevant features. To determine the ideal classification algorithm, in this study, a comparison of the performance of the tree-based classifer algorithm was carried out. This study also examines the performance of classification techniques in detecting traffic on high-dimensional and unbalanced data. Several Tree-based classification algorithms such as REPTree, J48, Random Tree and Random Forest were tested and compared. Testing with the best performance as a recommendation for the ideal combination of feature selection techniques and classification algorithms. This research produces an anomaly detection system that has high performance. For experimental data, the CICIDS-2017 dataset is used, which has high data dimensionality and contains unbalanced data. The test results show that Random Tree has an accuracy of 99.983% and Random Forest 99.984%.
Analisis Performa Algoritma Machine Learning pada Prediksi Penyakit Cerebrovascular Accidents
Authors: Zuama Robi Aziz , Rahmatullah Syaifur , Yuliani Yuri
Published: May 2022

Cerebrovascular Accidents (stroke) are a disease that threatens and causes death and disability and disability in the world, in Indonesia the number of people affected by stroke is increasing every year. Stroke can be prevented by adopting a healthy lifestyle, eating nutritious food, and doing physical activity. The purpose of this study is to create an effective stroke prediction model, the system uses parameters from lifestyle factors, controllable factors such as medical risk factors, and uncontrollable factors. Four classification algorithms are proposed, namely multi-layer perceptron, KNN, Decision Tree, and Random Forest. The results show that the classification algorithm can work effectively by producing a perfect score of 99.99% accuracy at the 10K-Fold Validation level of validation.
Penerapan Forward Chaining dan Certainty Factor Pada Sistem Pendeteksi Penyakit Hewan Qurban Berbasis Android
Authors: Nuraini Nabila Tiara , Aldisa Rima Tamara , Fitri Iskandar
Published: May 2022

Qurbani worship is a worship of the slaughter of livestock carried out on the feast of Eid al-Adha. In Indonesia the dominant livestock used for qurban worship is goats and cows, qurban animals that are allowed to be slaughtered also have conditions ranging from age and most importantly their health. This research is done so that goats and cows that will be slaughtered for qurban worship are free from existing diseases. Some of the problems in the system that will be built is the lack of understanding of the sellers of animals qurban about the diseases suffered by goats and cows from the symptoms experienced by these animals. This study used  the method of forward chaining  and  certaity factor in solving the problems that exist in goat and cow animals, to produce a conclusion in detecting diseases in these animals based on existing symptoms. The process of designing the application of disease detection expert systems in goat and cow animals uses the java programming language  and  uses   a text editor android  studio. The authors also tested the comparison of the combination method between forward chaining  and  certainty factor with the forward chaining  and  naïve bayes  methods  that received the highest percentage value results, namely in the  forward chaing  and  certainty factor  methods with a value of  9.553%.  in scab disease suffered by goat animals and a value of  9.509%in bloating disease suffered by cow animals. Getting the final result on the calculation of detection of goat disease by 91,264% with indicated suffering from  scab disease and also in cow animals by 90,432% indicated to suffer from bloating disease, both the final results of the calculation of the type of disease suffered by goats and cows respectively seen from the symptoms that have been inputted by the  user.
Clustering Kebutuhan Makanan untuk Meminimasi Standar Deviasi Angka Kebutuhan Gizi Menggunakan Algoritma K-Means dan K-Medoids
Authors: Anjariansyah Resha , Triayudi Agung
Published: May 2022

To prevent nutritional problems is balanced nutrition education, which consists of the four principles of a varied diet, a clean lifestyle, physical activity and regular weight monitoring. The diversity of food at each meal is visualized as the contents of my plate which consists of one third of staple foods, one third of side dishes, and one third of vegetables and fruit. In determining balanced nutrition, the principle of Fill My Plate is used, which consists of staple foods, side dishes, vegetables and fruit. This study aims to group or cluster the Indonesian Food Ingredients Table in 2017 using the k-means and k-medoids algorithms. Data from food types that have been summarized at TKPI in 2017 are divided into 4 appropriate categories, namely fruit food clustering (Klanpenres_0), staple food clustering (Klanpenres_1), side dishes clustering (Klanpenres_2), vegetable clustering (Klanpenres_3). In the results of this study the results of clustering using the k-means algorithm that there are 109 for (Klanpenres_0), 323 for (Klanpenres_1), 166 for (Klanpenres_2), 105 for (Klanpenres_3). While the results of clustering using the k-medoids algorithm are 107 for (Klanpenres_0), 325 for (Klanpenres_1), 166  for (Klanpenres_2), 107 for (Klanpenres_3). Meanwhile, for the standard deviation results from clustering using the k-means algorithm, there are 3 categories that exceed the recommended standard for the 40 percent Nutritional Adequacy Ratio, and 1 category that is less than the standard. And the results of the standard deviation of clustering using the k-medoids algorithm, there are 4 categories that are superior to the recommended standard for the Nutrition Adequacy Rate.
Analisa Usability Menggunakan Metode Heuristic Evaluation dan End User Computing Satisfaction pada Website Infobengkel
Authors: Jordan Bernardito , Triayudi Agung , Rahman Ben
Published: May 2022

Infobengkel website is a website that provides information about available workshops in a certain area. With this, users can find information about the workshop they want easily and quickly. in this study to analyze the usability of the infobengkel website assisted by the Heuristic Evaluation method and End User Computing Satisfaction. both methods are used to analyze the usability of the website and measure the level of user satisfaction of the website. from the results of the study it was stated that the website of workshop information was satisfied by the users. where the End User Computing Satisfaction method gets a value of 7.326 or 73.26% while for the Heuristic Evaluation method it gets a value of 7.204 or 72.04%. After doing the analysis, we get several recommendations for improvement that need to be considered in the website, such as the Format variable in the End User Computing Satisfaction method and the Aesthetic and Minimalist Design variable and Help and Documentation in the Heuristic Evaluation method.
Implementasi Metode First Come First Served Dalam Sistem Informasi Rental Mobil
Authors: Saputra Ilham Indra , Darusalam Ucuk
Published: May 2022

Car rental is a transportation service that offers rental services for vehicles. This business can also help the community or immigrants who need four-wheeled vehicle rental services for various purposes and needs. Car rental currently still uses the bookkeeping method and manually analyzes the data for recording the rental transaction data. Website-based information systems also have an important role in supporting progress in the application of the car rental business so that they can carry out car rental business activities optimally with progress. Website-Based Car Rental Information System is designed using Sublime tools, Notepad++ and uses a MySQL database. The system design method used is First Come First Served, which is a system that is used to make reservations by paying in advance. The method applies a system of advance payment in advance to get this car unit for rent. From this research, the First Come First Served method is very beneficial for the admin because if there is no rental status payment, it will be taken by other users with the desired car unit.
Penerapan Metode Time Charter Party Pada Sistem Informasi Penyewaan Alat Camping Berbasis Web
Authors: Hidayat Andi , Darusalam Ucuk
Published: May 2022

Sinar Adventure Store is a shop that provides camping equipment, this store has many customers who want to rent camping equipment such as tents, carril bags, stoves and sling bags. But the camping equipment rental transaction at this shop still uses the conventional process, so there are still many errors that occur in writing information and data reports on this camping equipment rental. This is the author's reference in designing a web-based camping equipment rental information system, with HTML, CSS, and PHP programming languages as the database. This system is designed using the waterfall method and the system follows the flow of the Time Charter Party method. In data processing, such as recording rental transaction data, it is still stored in a ledger storage media so that data security is not guaranteed because there is no more searching for camping equipment data at the Sinar Adventure Store who still has to wait a long time because they have to find one data person in the books. The purpose of creating this rental system is to overcome the problems that are currently happening at the Sinar Adventure Store store. The results of this study are to provide convenience in the processing of camping equipment data at the Sinar Adventure Store store such as admin data, data rental, ordering, checkout and to simplify the data search process in addition to having a more effective and larger storage media.
Sentiment Analysis of Indonesian Digital Payment Customer Satisfaction Towards GOPAY, DANA, and ShopeePay Using Naïve Bayes and K-Nearest Neighbour Methods
Authors: Maharani Anggita Putri , Triayudi Agung
Published: May 2022

The utilization of different results from the pace of technological development provides a lot of convenience, benefits, and time efficiency. Now, many related companies or organizations are engaged in technology, offering various services that they have developed to meet the needs of a highly consumptive society, with different terms and conditions. There are many descriptions related to the experience of using the platform that it developed on social media, where everyone can express their feelings and opinions about something since people commonly use Twitter. This study used sentiment analysis and opinion mining to see public satisfaction with digital payment services available in Indonesia by focusing on several available services such as GOPAY, DANA, and ShopeePay. The dataset that became the source of this research was taken from Twitter data through several preparation stages, including data crawling, data cleaning, feature selection, and classification with two machine learning approaches (K-Nearest Neighbour and Naïve Bayes). The raw data held is pre-processed until making the clean data. According to the classification algorithm, a feature search is implemented in this study so that the classification process and data modeling validation provide significant results.
Documentación de procesos de restauración ecológica asistida: Islas de cultivo y plantaciones de Melina en Guanacaste, Costa Rica
Authors: Sierra-Parra Ana María , Quijano Prieto Nicolás Enrique , Herrera-Martínez Christian G. , Villalobos Soto Roger , Delgado Diego , Gutiérrez Leitón Milena
Published: May 2022

Esta investigación recopila lecciones aprendidas de procesos de restauración asistida útiles para promover esta actividad en territorios ecológicamente similares. El objetivo fue documentar el contexto histórico y el proceso de cada tratamiento silvicultural, ejecutado por el Programa de Restauración y Silvicultura del Área de Conservación Guanacaste en el Sector San Cristóbal, con edades entre 18 y 22 años. A través de revisión de literatura, visitas y entrevistas a actores clave, esta investigación respalda el hecho de que las plantaciones de Gmelina arborea (como especie nodriza) y las islas de regeneración, son alternativas para acelerar la regeneración del bosque secundario en términos de: eliminación de pastos, recuperación de estructura y especies de bosques húmedos tropicales naturales de la zona.
Damage Parameter Variations of Breakwater Along with a Floating Wave Barrier and a Submerged Obstacle
Authors:   Department of Civil Engineering, Tabriz Branch Islamic Azad University, Tabriz, IRAN, Sorkhabi Ramin Vafaeipour , Naseri Alireza ,   Department of Civil Engineering, Tabriz Branch Islamic Azad University, Tabriz, IRAN, Alami Mohammad Taghi ,   Department of Water Recourses Management, Faculty of Civil Engineering, University of Tabriz, Tabriz, IRAN
Published: May 2022

Damage to rubble mound breakwaters (RMBs), both general and partial, causes instability and inconstancy of the structure against waves. This study aimed to investigate the effect of a submerged obstacle on the stability and damage reduction of RMBs as an innovative method and determine the optimal distance of the obstacle from the breakwater and the floating wave barrier based on the damage parameter. The waves affecting the breakwater were assumed to be random using a JONSWAP spectrum. The aggregates' movement and the RMB's exact deformation were recorded using close-range photogrammetric imaging, and the eroded area and the damage parameters were obtained at equal distances in eight cross-sections. According to the results of the tests, by analyzing the effect of the number of waves hitting the breakwater, 3000 waves were considered to bring the structure to a stable state. The results showed that increasing the relative wave height from 0.36 to 0.48 and from 0.48 to 0.6 increased the damage parameters to 39.12% and 44.44%, respectively, and increasing the relative wave period from 0.6 to 0.8 and 0.8 to 1 increased the damage parameters to 22.94% and 28.26%, respectively. Moreover, using a seaward obstacle at 0, 5, 10, 15, and 20 cm distances decreased the damage parameter. The greatest effect, a reduction of 39.15% in the damage parameter, was observed at a distance of 5 cm from the RMB. This number was reduced to 0.735 when a floating wave barrier was used without a submerged obstacle (i.e., 34.14%). Using an obstacle at 5 cm in conjunction with a wave barrier reduced the damage parameter by 54.03% and demonstrated the best function among different models. Hence, this model is proposed based on the experiments carried out in this study.
Thermal Performance and Energy Efficiency of Different Types of Walls for Residential Building
Authors:   School of Housing, Building and Planning, Universiti Sains Malaysia, Penang, 11800, MALAYSIA, Tan Ying Yi , Awang Hanizam ,   School of Housing, Building and Planning, Universiti Sains Malaysia, Penang, 11800, MALAYSIA, Mohd Isa Mohd Hafizal ,   School of Housing, Building and Planning, Universiti Sains Malaysia, Penang, 11800, MALAYSIA
Published: May 2022

Decrement factor and time lag play an essential role in determining the thermal performance of a building envelope. Building walls, which form a major part of a building, have great influences on the energy consumption and indoor environment of a room. The indoor temperature considerably increases as the outdoor temperature increases. This scenario leads to excessive reliance on the mechanical cooling system, thereby increasing energy consumption. Therefore, this study aims to investigate the thermal performance and energy efficiency of different wall types. A building with a built-up area of 387.85m2 with six different wall materials is modelled and inputted in Energy Plus simulation software as an Intermediate Data Format file. The maximum and minimum surface indoor and outdoor temperatures are then obtained to determine the thermal performance of the wall material in terms of time lag and decrement factor. The energy efficiency of the wall materials is investigated by obtaining the annual cooling energy of the building made up of different wall materials. Results show that with the time lag of 1 hour, decrement factor of 0.86, annual cooling energy load of 9.52 GJ and cost consumption of RM 608.12, aerated lightweight concrete wall is the most suitable material amongst the six wall materials.
A Comparative Study on Light Gauge Member and Castellated Beam
Authors:   Assistant Professor, Department of Civil Engineering,  PSG College of Technology, Coimbatore,641004, Tamilnadu, INDIA, Vanathi V. , Venkatraman G. ,   Assistant Professor, Department of Civil Engineering,  PSG College of Technology, Coimbatore,641004, Tamilnadu, INDIA, Gokul Balaji B. ,   PG Scholar, Department of Civil Engineering,  PSG College of Technology, Coimbatore,641004, Tamilnadu, INDIA
Published: May 2022

This research paper examines the comparative study on strength characteristics of a Cold rolled steel with castellated beam under the lateral distortional and torsional buckling modes. For studying a beam element, a STADD model is built. In the examination of cold formed steel sections, material non-linearity and geometric imperfection were taken into account. Variations in length and cross section of a finite element model were investigated. For cold formed steel sections and castellated beams, the load deflection curve is plotted and examined. To investigate the strength and behaviour of castellated steel beams, finite element modelling was used to modify the cross section. The study shows that the web distortional buckling has greatly influenced by the failure load in castellated steel beam. The failure load of the beam is influenced by the steel strength; the higher the steel strength, the higher the failure load. The high strength castellated steel beam fails due to local flange buckling, whereas the regular castellated steel beam fails due to lateral torsional buckling in the web.
PERANCANGAN SISTEM PENGAMAN MOTOR DENGAN ANDROID MELALUI BLUETOOTH DAN GPS
Authors: Sulo Bambang Dwi , Dermawan Yanis Fajar , Darwanto Agus
Published: May 2022

A motorcycle safety system is a tool integrated with a design that functions to secure motorized vehicles from all criminal acts such as robbery and motorcycle theft by breaking. The need for this security system is to maintain motorcycle security when not under the owner's supervision. The number of motorcycle theft cases or robberies today coupled with the current Covid-19 pandemic has made the crime rate high, thus making the author take the initiative to design a motorcycle safety system. We developed the tool with several features. Firstly, opening and locking the steering wheel. Secondly, ON/OFF contacts. Thirdly, a starter to turn on the motorcycle via the Bluetooth module, and an additional terrific feature is that in this application, what can use it to track the whereabouts of a bike with a GPS module installed which coordinates will be sent via SMS with the SIM800L module.Keywords: Security Device, Motorcycle, Android, Arduino, GPS, Bluetooth, SMSABSTRAKSistem pengaman sepeda motor adalah suatu alat yang terintegrasi dengan sistem yang berfungsi untuk mengamankan kendaraan bermotor dari segala tindak kriminal seperti halnya begal, pencurian sepeda motor dengan cara membobol yang mana perlunya sistem pengaman ini untuk menjaga keamanan sepeda motor ketika tidak dalam pengawasan pemilik. Banyaknya kasus pencurian atau begal sepeda motor di masa kini ditambah dengan pandemi Covid-19 yang sedang melanda membuat tingginya angka kriminalitas, sehingga membuat penulis berinisiatif untuk merancang alat sistem pengaman sepeda motor. Penulis merancang alat tersebut dengan beberapa fitur antara lain membuka dan mengunci setir, Kontak ON/OFF, starter untuk menyalakan sepeda motor melalui modul Bluetooth, dan fitur keren tambahannya adalah dalam aplikasi ini bisa digunakan untuk melacak keberadaan sepeda motor yang terpasang modul GPS yang mana koordinatnya akan dikirim melalui SMS dengan module SIM800L.Kata Kunci: Alat Pengaman, Sepeda Motor, Android, Arduino, GPS, Bluetooth, SMS
SISTEM PREDIKSI KEPRIBADIAN MANUSIA BERDASARKAN STATUS MEDIA SOSIAL MENGGUNAKAN SUPPORT VECTOR MACHINE
Authors: Ronando Elsen , Yasa Muhammad , Indasyah Enny
Published: May 2022

Currently, social media is a forum for exchanging information widely used by the public, such as Facebook and Twitter. Social media users exchange information to find out the condition of one another. Some companies use social media to explore the personality potential of prospective employees to be recruited. However, to dig up this information takes a very long time because the company has to open prospective employees' social media one by one. To dig up information automatically, a personality detection system is needed from social media users. This study develops a person's personality prediction system based on social media status using the support vector machine. The data sets evaluated in this study were 300 Facebook social media status data and 2067 Twitter social media status data. Based on the evaluation results, we obtained a high level of accuracy in detecting a person's personality based on social media status, namely 100% for Facebook user status and 99.3% for Twitter user status.Keywords: Personality, Social Media, Support Vector Machine, Facebook, Twitter ABSTRAKSaat ini, media sosial merupakan salah suatu wadah pertukaran informasi yang banyak digunakan oleh masyarakat, seperti Facebook maupun Twitter. Pengguna media sosial saling bertukar informasi untuk mengetahui kondisi satu dengan lainnya. Beberapa perusahaan memanfaatkan media sosial untuk menggali potensi kepribadian dari calon pegawai yang akan direkrut. Namun, untuk menggali informasi tersebut memerlukan waktu yang sangat lama karena perusahan harus membuka media sosial dari calon pegawai satu per satu. Agar dapat menggali informasi secara otomatis, maka diperlukan sistem deteksi kepribadian dari pengguna media sosial. Penelitian ini mengembangkan sistem prediksi kepribadian seseorang berdasarkan status media sosial menggunakan metode Support Vector Machine. Set data yang dievaluasi dalam penelitian ini yaitu 300 data status media sosial Facebook dan 2067 data status media sosial Twitter. Berdasarkan hasil evaluasi yang dilakukan diperoleh tingkat akurasi yang tinggi dalam mendeteksi kepribadian seseorang berdasarkan status media sosial, yaitu 100% untuk status pengguna Facebook dan 99,3% untuk status pengguna Twitter.  Kata Kunci: Kepribadian, Media Sosial, Support Vector Machine, Facebook,  Twitter.
PENENTUAN RUTE OPTIMAL PADA DISTRIBUSI BARANG MENGGUNAKAN ALGORITMA GREEDY (Studi Kasus : UD.XYZ)
Authors: Januantoro Ardy , Septiyanto Abdullah Faqih , Hapantenda Andrey Kartika Widhy
Published: May 2022

The distribution of goods is an important thing that must consider in the continuity of a business. The better the distribution of goods will have an impact on increasing customer satisfaction. UD XYZ is a distributor of motorcycle masks in Surabaya. The distribution route, which is carried out every day, does not have a fixed route selection reference and is constantly changing without a clear basis. The distribution process often experiences delays in the delivery of goods. For this reason, optimization is needed in determining the optimal distribution route to save time, costs, and other operations. A greedy algorithm is one of the algorithms used to determine the optimal solution. The greedy algorithm is an algorithm that follows a problem-solving heuristic making a locally optimal choice at each stage in the hope of finding a global optimal. With the implementation of the greedy algorithm, this research produces an optimal distance and can provide benefits to UD XYZ.Keywords: Distribution of goods, optimization, distribution routes, greedy algorithm ABSTRAKDistribusi barang merupakan hal penting yang harus diperhatikan pada keberlangsungan sebuah bisnis. Semakin baik distribusi barang maka akan berdampak terhadap meningkatnya kepuasan pelanggan. UD XYZ merupakan salah satu distributor masker motor di Surabaya. Rute distribusi yang setiap hari dilakukan tidak memiliki acuan pemilihan rute yang tetap dan selalu berubah – ubah tanpa ada dasar yang jelas, sehingga proses distribusi sering mengalami kendala keterlambatan pengiriman barang. Untuk itu diperlukan optimasi dalam menentukan rute distribusi yang optimal agar lebih menghemat waktu, biaya dan operasional lainnya. Algoritma greedy merupakan salah satu algoritma yang digunakan untuk menentukan solusi optimal. Algoritma greedy adalah algoritma yang mengikuti heuristik pemecahan masalah membuat pilihan optimal lokal pada setiap tahap dengan harapan menemukan optimal global Pada penelitian ini, pemilihan lokal digambarkan dengan node – node yang diterapkan sebagai lokasi distribusi barang kemudian memilih jalur terbaik antar lokasi distribusi. Dengan implementasi algoritma greedy, penelitian ini mengasilkan jarak yang optimal dan mampu memeberikan keuntungan pada UD XYZKata Kunci: Distribusi barang, optimasi, rute distribusi, algoritma greedy
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI NIAT PENGGUNA E-LEARNING (CLASSROM) DI SMK NEGERI 7 JEMBER MENGGUNAKAN MODEL UNIFIED THEORY OF ACCEPTANCE AND USE OF TECHNOLOGY 2 (UTAUT 2)
Authors: Yunita Rosiana Dwi
Published: May 2022

ABSTRACTTo measure the factors that influence the acceptance of technology, then the Unified Theory of Acceptance and Use of Technology 2 (UTAUT 2) model is used where there is a change in the moderate variable, namely the student variable previous education and gender. Testing the model in this study using software SmartPLS. The results in this study are the factors that influence user intentions in using e-learning. It was found that the influencing factors were Performance expectancy is also referred to as performance expectations which have an influence on positive and significant on behavior intention in the behavior of using e-learning by student. This factor is proven to be the influence of students' intentions in using technology at SMK Negeri 7 Jember.

Keywords: User Acceptance, E-learning, Unified Theory of Acceptance and Use of Technology 2 (UTAUT 2), Gender, Previous education Students

ABSTRAKUntuk mengukur faktor-faktor yang mempengaruhi penerimaan terhadap teknologi, maka digunakan model Unified Theory of Acceptance and Use of Technology 2 (UTAUT 2) yang dimana terdapat perubahan pada variabel moderat yakni variabel student previous education dan gender. Pengujian model dalam penelitian ini menggunakan software SmartPLS. Hasil dalam penelitian ini adalah faktor-faktor yang mempengaruhi niat pengguna dalam menggunakan e-learning. Diperoleh bahwa faktor yang berpengaruh adalah performance expectancy disebut juga sebagai ekspektasi kinerja dimana memiliki pengaruh positif dan signifikan terhadap behavior intention dalam perilaku penggunaan e-learning oleh siswa. Faktor inilah yang terbukti sebagai pengaruh niat siswa dalam menggunakan teknologi di SMK Negeri 7 Jember.

Kata Kunci: Penerimaan Pengguna, E-learning, Unified Theory of Acceptance and Use of Technology 2 (UTAUT 2), Jenis Kelamin, Pendidikan Sebelumnya Siswa
Uji Formulasi Spray Scant Diffuse Untuk Memanipulasi Bau Tubuh
Authors: Budi Setia , Melviani Melviani
Published: May 2022

Aktivitas seseorang sering terganggu dengan adanya bau badan yang dapat mempengaruhi rasa percayaan diri dan interaksi sosial. Penggunaan pengharum badan tidak bisa mengurangi atau mengatasi bau badan dan perlunya ada sediaan baru yang dapat menetralkan bau badan serta mengikat dan memecah bau. Makanan yang dikonsumsi merupakan salah satu penyebab bau badan selain dipengaruhi oleh hormon. Dimana keringat akan diproses oleh flora normal kulit dan menjadi bau Bakteri seperti kelompok Corynebacterium, kelompok Propionibacteria, dan Staphylococcus epidermidis  merupakan bakteri yang memegang peran dalam terjadinya bau badan. Bakteri lain penyebabkan bau badan seperti Staphylococcus aureus, Pseudomonas aeruginosa, dan Streptococcus pyogenes. Ketika perkebangan bakteri ini dihambat degan Formulasi sedian Scant Diffuse yang mengkombinasikan dari beberapa kandungan senyawa kimia seperti hidrogen piroksida sebagai antimikroba, karbon aktif yang mempunyai sifat mengikat bau dan natrium bikarbonat yang bisa menghambat metabolisme bakteri terhadap keringat diharapkan dapat menjadi solusi dalam permasalahan bau badan. Pengujian Spray Scant Diffuse untuk mengetahui stabilitas sedian spray yang dibuat dengan tahapan evaluasi yang nanti memungkinkan menjadi sedian yang stabil dalam penggunaan dan penyimpanan

Metode penelitian dilakukan dengan membuat sediaan Scant Diffuse dengan 3 formulasi, mengunakan tahapan uji evaluasi sediaan spray pre eksperimental laboratorium yaitu  one-shoot case study dengan parameter pengujian organoleptik, kekentalan, stabilitas penyimpanan, derajat kasaman, dan homogenitas, dan  stabilitas.

Hasil berdasarkan hasil pengujian sediaan formulasi 1 menunjukkan sediaan yang stabil, adapun formulasi 2 dan 3 pada uji organoleptik menunjukkan adanya sedimentasi dan sediaan sukar terdispersi kembali ketika dilakukan penggojokan dengan kuat. Sediaan spray Scant Diffuse yang stabil ada pada formula 1 dengan konsentrasi zat aktif yaitu  natrium bikarbonat 20 mg dan karbon aktif 2 mg.
Perbandingan Flavonoid Total dan Aktivitas Antioksidan Fraksi Etil Asetat Biji Kelor (Moringa oleifera L.) dan Biji Kecipir (Psophocarpus tetragonolobus L.)
Authors: Krisridwany Annisa , Tatra Miftah Rizkia , Sukamdi Dyani Primasari
Published: May 2022

Tanaman kelor (Moringa oleifera L.) dan kecipir (Psophocarpus tetragonolobus L.) banyak dimanfaatkan masyarakat sebagai makanan dan pengobatan tradisional. Selain bagian daun, biji kelor dan biji kecipir juga banyak digunakan oleh masyarakat. Kedua tanaman ini memiliki potensi sebagai antioksidan. Pada studi ini dilakukan pengukuran kadar total flavonoid dan aktivitas antioksidan pada fraksi etil asetat dari kedua biji secara in vitro. Studi ini diharapkan dapat memberikan informasi perbandingan kadar antioksidan antara kedua biji tersebut. 

Ekstrak etanol dari masing-masing biji dilakukan fraksinasi dengan n-hexan, etanol, dan etil asetat. Total flavonoid dari fraksi etil asetat diukur dengan pembacaan absorbansi pada Panjang gelombang 446 nm dengan quercetin sebagai pembanding. Aktivitas antioksidan dari fraksi etil asetat dilakukan dengan metode DPPH (1,1- diphenyl 2-picrilhidrazil) dan pembacaan absorbandi pada 517 nm dengan vitamin C sebagai pembanding dan diukur nilai IC50.

Total flavonoid fraksi etil asetat biji kelor sebesar 42.80 ± 1.61 mg QE/g sedangkan fraksi etil asetat biji kecipir sebesar 71.56 ± 5.50 mg QE/g. Aktivitas antioksidan fraksi etil asetat biji kelor lebih besar dari biji kecipir yang ditunjukkan oleh nilai IC50 sebesar 134.34 ppm pada biji kelor dan 179.57 ppm pada biji kecipir. Aktivitas antioksidan fraksi etil asetat biji kelor lebih besar dari biji kecipir namun total flavonoid biji kecipir lebih besar, hal ini menunjukkan kemungkinan terdapat lebih banyak senyawa antioksidan selain flavonoid pada biji kelor.

 

Kata kunci : antioksidan; DPPH; flavonoid; biji; Moringa oleifera L.; Psophocarpus tetragonolobus L.
Aktivitas Ekstrak Kasar Enzim Fibrinolitik Bakteri Bacillus cereus yang Diisolasi dari Air Hutan Mangrove Maroon Edupark Semarang secara In Vitro
Authors: HA Rizky Bimantara , Indrayati Ana , Purwaningsih Desi
Published: May 2022

Enzim fibrinolitik merupakan enzim yang bekerja dengan cara mendegradasi fibrin dalam bekuan darah. Enzim fibrinolitik dihasilkan oleh banyak organisme, salah satunya adalah bakteri Bacillus cereus yang berasal dari air hutan mangrove Maroon Edupark Semarang. Isolasi enzim fibrinolitik dari bakteri sangat penting dilakukan karena bakteri mudah ditumbuhkan, memiliki waktu generasi yang cepat, tidak memerlukan lahan yang luas untuk kultivasi, serta mudah dimodifikasi secara genetik sehingga akan lebih menguntungkan secara ekonomi. Selain itu enzim fibrinolitik dari bahan alam memiliki efek samping yang lebih kecil dibandingkan obat fibrinolitik sintetik. Penelitian ini bertujuan untuk mengetahui aktivitas ekstrak kasar enzim fibrinolitik B. cereus dari air hutan mangrove Maroon Edupark Semarang dalam melisisikan bekuan darah secara in vitro.

Penelitian diawali dengan konfirmasi keberadaan  gen  penyandi enzim fibrinolitik dari bakteri B. cereus menggunakan popular resources ‘nucleotide’ NCBI, identifikasi morfologi bakteri pada media agar darah, pewarnaan Gram, pewarnaan endospora, pengujian katalase dan koagulase. Isolasi ekstrak kasar enzim fibrinolitik B. cereus dilakukan dengan ekstraksi enzim. Kadar protein ekstrak kasar enzim ditetapkan menggunakan metode Bradford dan uji aktivitas fibrinolitik secara in vitro menggunakan media plat fibrin dengan kontrol positif nattokinase. Zona bening yang dihasilkan menunjukkan kemampuan ekstrak enzim dalam mendegradasi fibrin.

               Hasil identifikasi gen bakteri B. cereus menggunakan data base NCBI terdaftar sebagai gen AprE. Hasil identifikasi pewarnaan Gram dan endospora, B. cereus merupakan bakteri Gram positif dan mempunyai endospora. Identifikasi bakteri pada media agar darah menunjukkan bahwa B. cereus merupakan kelompok β-hemolisis. Hasil uji katalase dan koagulase menunjukkan bahwa bakteri tersebut menghasilkan enzim katalase dan koagulase. Kadar protein ekstrak kasar enzim fibrinolitik B. cereus yang didapat sebesar 19,63 mg/mL. Aktivitas fibrinolitik pada konsentrasi 20, 40, 80% berturut-turut sebesar 2,54; 6,11; dan 7,94 mm. Berdasarkan hasil diatas dapat disimpulkan bahwa ekstrak kasar enzim fibrinolitik B. cereus berpotensi untuk dikembangkan sebagai agen fibrinolitik alami.
Optimasi Formula Lotion Ekstrak Etanol Bunga Krisan (Crhysanthemum cinerariaefolium (Trevir.)Vis.) menggunakan Kombinasi Asam Stearat dan Setil Alkohol sebagai Repelan dengan Metode Simplex Lattice Design
Authors: Ginaris Rifkarosita Putri , Herowati Rina , Sulaiman TN Saifullah
Published: May 2022

Demam berdarah dengue (DBD), penyakit infeksi disebabkan oleh virus Dengue yang ditularkan dari orang ke orang melalui gigitan nyamuk dengan pengendalian vektor menggunakan repelan bahan alami. Bunga Krisan (Crhysanthemum cinerariaefolium (Trevir.) Vis.) mengandung flavonoid, saponin dan polifenol yang berkhasiat sebagai repelan terhadap nyamuk Aedes aegypti. Sediaan lotion dengan kombinasi asam stearat dan setil alkohol digunakan untuk meningkatkan daya lekat dan pengental. Tujuan penelitian ini adalah membuat sediaan lotion menggunakan kombinasi asam stearat dan setil alkohol untuk mendapatkan mutu fisik optimum serta mendapatkan konsentrasi ekstrak etanol bunga krisan yang efektif sebagai lotion repelan terhadap nyamuk A. aegypti dan efek aman pada kulit.

Ekstraksi bunga krisan dilakukan menggunakan etanol 70%. Ekstrak etanol bunga krisan kemudian dilakukan orientasi dosis dengan konsentrasi 1,2%. Formulasi lotion ekstrak etanol bunga krisan dibuat menjadi 7 formulasi dengan menggunakan basis asam stearat dan asam stearat, Formula I 9,00 : 8,00 %, Formula II 15,00 : 2,00 %, Formula III 11,00 : 6,00 %, Formula IV 15,00 : 2,00 %, Formula V 13,00 : 4,00 %, Formula VI 7,00 : 10,00 %, Formula VII 11,00 : 6,00 %. Penentuan formula optimum menggunakan metode Simplex Lattice Design menggunakan program Design Expert. Formula optimum yang didapat, kemudian diuji stabilitas fisik meliputi viskositas, daya lekat, daya sebar dan pH. Stabilitas fisik diuji menggunakan metode One Way Anova dilanjutkan dengan Tuckey HSD. Uji iritasi dengan metode Human 4 hour patch test dan uji hedonik dengan memberikan pertanyaan kepada probandus.

Hasil yang didapatkan menunjukkan aktivitas farmakologi ekstrak etanol bunga krisan sebagai daya tolak nyamuk pada konsentrasi 1,2% dengan kombinasi optimum asam stearat dan setil alkohol yaitu asam stearat 7% dan setil alkohol 10% mendapatkan mutu fisik optimum menggunakan metode Simplex Lattice Design. Dapat disimpulkan formula optimum lotion ekstrak etanol bunga krisan tidak memiliki stabilitas mutu fisik yang baik berdasarkan parameter daya lekat, daya sebar, pH dan viskositas selama penyimpanan 30 hari dan formula optimum lotion ekstrak bunga krisan tidak menyebabkan iritasi pada kulit dan cukup dapat diterima oleh probandus.
Makalah Kelembagaan dan Identitas Koperasi
Authors: K Khelvin.
Published: May 2022

Pada saat ini masih banyak orang yang kurang memahami betapa pentingnya peran koperasi sebagai salah satu sector usaha perekonomian Indonesia. Mungkin masih banyak orang yang menganggap koperasihanyalah lembaga keuangan biasa. Namun kenyataannya koperasimerupakan salah satu dari tiga sector usaha formal dalam perekonomian Indonesia. Dalam kegiatannya, selain menekankan pada kepentingan social dan ekonomi, kegiatan ekonomi juga menekankan padakepentingan moral.
Most cited papers on Economics and Business Letters
Authors: Quang-Loc Nguyen
Published: May 2022

Most cited papers on Economics and Business Letters - updated in May 2022
Review Jurnal Putri Ramadani
Authors: Astuty Tri Septy
Published: May 2022

Reviw ketiga jurnal kesehatan
RESUME EKONOMI MAKRO SYARIAH "KEBIJAKAN FISKAL PRESPEKTIF ISLAM"
Authors: Nurhayati
Published: May 2022

Kebijakan fiskal diartikan sebagai langkah-langkah pemerintah untuk membuat perubahan-perubahan dalam sistem pajak atau dalam perbelanjaannya yang bertujuan mengatasi masalah-masalah ekonomi yang dihadapi. Kebijakan fiskal mendapat perhatian serius dalam tatanan perekonomian Islam sejak awal. Dalam negara Islam, kebijaksanaan fiskal merupakan salah satu perangkat untuk mencapai tujuan syariah. Tujuan tersebut adalah meningkatkan kesejahteraan dengan tetap menjaga keimanan, kehidupan, intelektualitas, kekayaan, dan kepemilikan.
ĐÁNH GIÁ SỰ THAM GIA CỦA NGƯỜI DÂN VỀ VẤN ĐỀ XỬ LÝ RÁC THẢI SINH HOẠT NÔNG THÔN Ở MIỀN BẮC VIỆT NAM
Authors: Do Trang Thuy , Bich Ngo T.Ngoc , Quý Khúc Văn
Published: May 2022

ĐÁNH GIÁ SỰ THAM GIA CỦA NGƯỜI DÂN VỀ VẤN ĐỀ XỬ LÝ RÁC THẢI SINH HOẠT NÔNG THÔN Ở MIỀN BẮC VIỆT NAM
Kelembagaan dan Identitas Koperasi
Authors: Mirnawati
Published: May 2022

Tiga prinsip identitas (tanpa mengabaikan prinsip yang lain ) dalam koperasi adalah keanggotaan bersifat terbuka dan sukarela, adanya pembatasan atas modal dengan dasar satu orang satu suara, serta alokasi sisa hasil usaha sebanding dengan transaksi yang dilakukan oleh anggota. Makna prinsip identititas ini menuntut kesadaran anggota bahwa kelangsungan hidup koperasi sangat tergantung dari partisipasi para anggota koperasi sebagai pemilik sekaligus sebagai konsumen. Inilah yang membedakan koperasi dengan badan usaha yang lain.
Approaches to Technology-enabled Personalized and Adaptive Learning: A Brief Overview
Authors: Alrawashdeh Ghaida S.
Published: May 2022

Evidence indicates that differentiation is more effective than the traditional one-size-fits-all. Teachers, however, may not always have the time, resources, or skills to assess student performance, and provide effective feedback iteratively. Digital approaches to personalized and adaptive learning (PAL) can deliver effective individualized instruction quickly and at scale while maintaining an age-based cohort structure. However, there are divergent views among experts on what PAL is as both a paradigm and as a technology, as well as the effectiveness of the different adaptation approaches. This overview briefs regarding PAL definitions, its architecture, as well as the adaptation and algorithmic approaches.
KEKUASAAN DAN POLITIK
Authors: Ayuningtyas Defvy
Published: May 2022

Kekuasaan dan politik merupakan suatu hal yang sudah menjadi satu kesatuan dan tidak dapat dipisahkan. Di mana dalam hal ini politik merupakan salah satu bentuk dalam memperoleh kekuasaan atau how to get the power. Saat kita membicarakan tentang politik maka sebenarnya kita membicarakan suatu hal bagaimana strategi untuk mendapatkan suatu kekuasaan. Sedangkan kekuasaan merupakan suatu energi yang dimiliki oleh seseorang atau suatu kelompok untuk memuluskan tujuan yang ingin dicapai seseorang tersebut. Kekuasaan dalam politik artinya adalah menghimpun dan menempatkan suatu energi di setiap orang dalam kelompok yang gunanya memperoleh kekuatan untuk memuluskan dan mencapai tujuan yang hendak dicapai. Kekuasaan dalam politik kadang terlihat seperti sangat "kotor", karena strategi seseorang atau suatu kelompok tersebut dalam berpolitik memungkinkan mereka untuk menggunakan berbagai cara yang pada akhirnya harus mengorbankan seseorang atau kelompok lainnya. Untuk memperoleh suatu tujuan tersebut menggunakan berbagai alasan dan tidak hanya satu ideologi sampai kepada tidak sepaham secara budaya atau agama.
Ulangan Akhir Semester (UAS) Ilmu Politik dan Pendidikan IPS
Authors: Barokah Syarifah Anisa
Published: May 2022

1.Mengapa kekuasaan diperlukan untuk mempengaruhi kebijakan politik. Uraikan bagaimana pendapat Anda. 2.Jelaskan menurut pandangan anda tentang perkembangan Dinamika Demokrasi yang ada di Indonesia. 3.Uraikan bagaimana hubungan antara politik dengan pendidikan. 4.SIlakan pilih 1 tulisan di google scholar MZA Anis Anis dan Muhammad Adhitya Hidayat Putra, kemudian kutip dan korelasikan dengan materi politik disertakan contoh konkrit! 5.Sebutkan dan Jelaskan Bentuk-bentuk negara yang ada di dunia.
Interaction and Ostension: The myth of 4th order Intentionality
Authors: Sievers Christine
Published: May 2022

Research in comparative cognition on allegedly uniquely human capacities considers the identification of these human capacities in other species as one of their main points of inquiry. Capacities are applied in their theoretical descriptions to promising empirical data. The conclusion then often is that even though, on a behavioural level, the human and nonhuman cases appear related, on a cognitive level there is no relation whatsoever because the underlying cognitive states diverge in quality. This result seems dissatisfying for two reasons: (1) there is ample empirical evidence that suggests the presence of the capacities in other species, and (2) the claim that the underlying states diverge often hinges on the reference to the theoretical definitions of these capacities only. This opinion piece focuses on the capacity of ostensive intentional communication to demonstrate that the original theoretical analyses often are not befitting a comparative endeavour and should therefore not be used as pivotal reference within comparative research. An outlook will be provided on more promising approaches to identifying ostensive communication, namely an interactive approach that will allow for ostension to not be perceived as a one-turn signalling behaviour, but as interactive, with the possibility of being established in a trial-and-error manner.
A single nucleotide variant on chromosome 11 residing within OPCML distinguishes patients with luminal B breast cancer.
Authors: Mamoor Shahan
Published: May 2022

Molecular subtypes including luminal subtypes A and B drive patient outcomes in human breast cancer but the biological basis for this is not completely understood (1-4). We mined published microarray data (5, 6) to discover in an unbiased fashion the most distinguishing genetic and transcriptional features of tumors of each breast cancer molecular subtype. We identified a single nucleotide polymorphism, rs1793265, residing within OPCML, as among the most significant genetic differences in the tumors of patients with luminal B breast cancer. In a separate cohort of patients with luminal B subtype breast cancer, we observed transcriptome-wide differential expression of a OPCML transcript. Analysis of patient survival data revealed that OPCML primary tumor expression was correlated with recurrence-free survival in patients with luminal A and luminal B subtype breast cancer. Sequence variation in the OPCML gene may be important in understanding differences in genetic background that favor development of luminal B subtype human breast cancer.