bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisa Kualitas Website SMK Negeri 1 Mandor Terhadap Kepuasan Pengguna Dengan Metode Webqual 4.0
Authors: Filipus Nanda Kurniawan  , Eva Zuraidah
Published: March 2024

Foreman 1 State Vocational High School currently has a website with the site address https://smkn1mandor.sch.id/ as a means of delivering academic information needed by users. However, so far there are still obstacles in the field, namely that there are still many students who cannot access the website properly because the academic consultation feature cannot be accessed optimally, there is a lot of content that is not updated, students lack enthusiasm for using website profile and basic information such as the school's complete profile has not been included in its entirety on the website. For this reason, researchers conducted an analysis of student satisfaction as users of website services using the webqual 4.0 method which focuses on 3 webqual 4.0, namely Usability Quality, Information Quality, and Interaction Service Quality. This study used a statement instrument based on the webqual 4.0, using a questionnaire distributed to 87 respondents taken based on simple random sampling from a population of 450 active students. Data processing used SPSS version 26. Based on the test results and data analysis in this study, it can be concluded that the four webqual 4.0 variables, namely Usability Quality, Information Quality, and Service Interaction Quality on the website are in a reasonably high category with satisfaction scores in the satisfied category. The results of the evaluation in this study provide input for school's service interactions website.
Implementasi Metode Artificial Neural Network Untuk Analisis Resiko Kredit Pada Sistem Peer To Peer Lending
Authors: Octaviandy Pieter , Octara Pribadi
Published: March 2024

Peer to Peer (P2P) lending is an example of implementing Financial Technology (Fintech) in the form of information technology-based lending and borrowing services. This service offers flexibility where lenders and borrowers can allocate and get capital or funds almost from and to anyone, in any amount of value, effectively and transparently, and with competitive returns. The problem with the Peer to Peer lending application is how to provide recommendations to users, especially to lenders regarding the risk of borrowing from borrowers. To solve this problem, the Artificial Neural Network method is applied. The result of this research is a web- based Peer to Peer Lending system application. The software is able to provide information on the results of recommendations to lenders regarding the type of loan. From the test results, information is obtained that the Artificial Neural Network method is suitable to be applied in a peer-to-peer lending system, with a validity level of 80%. In addition, the software is also able to provide highly reliable recommendation information to lenders regarding the type of loan, with a sensitivity level of 100% loan risk prediction, 60% positive predictive value and 100% negative predictive value.
Monitoring Notifikasi Status Services Pada Os Linux Menggunakan Bot Telegram
Authors: Steffi Adam  , Afrina  , Suryadi Agus
Published: March 2024

Currently server monitoring is still done manually, servers sometimes experience downtime and trouble, namely several services such as Apache, MySQL often down or crash themselves, network administrators cannot always monitor the network they manage as a result of the many other jobs that must be done. For this reason, this research created a script that can be used to monitor services on the server. This research was conducted by collecting data, observing and researching the library using telegram bots and bash scripts as supporting applications in monitoring service activities. This study aims to make it easier for administrators to handle servers. With this system, you can send notifications via telegram to network administrators when a service dies and this system can revive the dead service by restarting it
Perancangan Desain User Interface dan User Experience Media Pembelajaran Aksara Jawa Untuk Siswa Sekolah Dasar dengan Metode Design Thinking
Authors: Januar Adi Putra  , Muhammad Yusuf Auliya  , Fahrobby Adnan
Published: March 2024

Learning media plays a role in supporting the learning process to create variation and not boring. SDIT Bina Insani presents learning media as a means as well as a learning support. The learning media used is Javanese script card. The Javanese script card is considered sufficient to create variations in the learning experience, but it is not enough to attract students’ interest in learning and is limited to interaction with the teacher. To improve this, learning media is needed that has a user interface design and interactive user experience and able to help students make learning more fun. Design Thinking is a UI and UX design development method that focuses on extracting information and building creative ideas for solutions to encountered problems. Design thinking has five stages of the development process: Empathize, Define, Ideate, Prototype, and Test. The design of the learning media is expected to be able to provide interaction for students to understand Javanese script interactively and without being limited to learning time at school.
Algoritma Backpropagation Metode Levenberg Marquardt Dalam Memprediksi Penyakit Stroke
Authors: Solikhun  , Amalya Nanda
Published: March 2024

In Southeast Asia, stroke is the third leading cause of disability and the disease with the second highest risk of death. A stroke occurs when a blood vessel in the brain is blocked or bursts, preventing some cells or brain tissue from receiving the oxygen they need from the blood supply. This study focuses on predicting stroke using the Levenberg Marquardt algorithm. Stroke prediction data is taken from the Kaggle website which consists of 5110 records. The attributes used to predict stroke consist of 10 attributes, namely gender, age, patient hypertension, heart disease, marital status, type of work, type of residence, average glucose level, body weight, and smoking status. The results of this study are the prediction of stroke by training and testing MSE = 0.0550 at Epoch = 10000 with 10-10-1 architecture.
Penerapan Metode WASPAS dan ROC (Rank Order Centroid) dalam Pengangkatan Karyawan Kontrak
Authors: Mahdi Fahrul , Faisal  , Dwina Pri Indini  , Mesran
Published: March 2024

The important determinant factor for the success of a service company in achieving its established objectives is its workforce. The selection process for new and contract employees in the company should be objective in order for them to become permanent employees. However, many companies still lack measures to evaluate the level of objectivity in their selection process. In this study, the author observed that sometimes companies experience difficulty in determining which contract employees should be promoted to permanent employees due to the lack of objectivity in the selection process. Therefore, the author used the Simple Additive Weighting (WASPAS and ROC) method to determine the best employees who can be promoted to permanent employees with criteria such as participation, level of education, competency, workplace, knowledge, teamwork, work quality, English language skills, and others. Based on the research results, the ROC and WASPAS methods are very useful in determining the best employee candidates and solving identified problems, as well as providing better and more optimal results in decision-making. In this study, variant A2 with the highest utility value of 0.982 was chosen as the best contract employee to be employed as a permanent employee.
Penerapan Metode ARAS Dalam Menentukan Kelayakan Penerima Bantuan PKH Kelurahan Sudirejo-I Medan
Authors: Rahmadhani Adinda , Mesran  , Fau Alwin
Published: March 2024

Sudirejo-I Village, Medan City within a certain period of time determines the recipients of the Family Hope Program (PKH) assistance to its citizens. Providing cash assistance to the poor who require them to follow the requirements set by the Family Hope Program, namely sending their children to an education, and carrying out regular visits to health facilities for children aged 0 to 6 years, pregnant women and postpartum mothers. However, the provision of PKH social assistance at the Medan City Social Service is still not optimal. Because at the time of selecting the recipients of PKH assistance, there was no supporting system so that at the time of the selection process it was still using estimates and there was no calculation at the time of selecting the recipients of the assistance. So many residents protested because they should be more deserving of PKH assistance. The results of this study aim to create a Decision Support System in the provision of PKH social assistance using the ARAS method, which is one method that supports in helping to determine the eligibility of beneficiaries of the Family Hope Program (PKH), therefore a Decision Support System is needed. With this Decision Support System, it is expected to be able to minimize the occurrence of wrong targets that often arise in the selection process, the results of this study get the highest score obtained by A11 with a total value of 0.8648.
Perancangan Sistem Pendukung Keputusan Berbasis Web Untuk Menentukan Asisten Laboratorium Komputer Menggunakan Algoritma Simple Additive Weighting
Authors: Siregar Rosma , Erita Astrid  , Muhammad Dani Solihin
Published: March 2024

The computer laboratory is one of the facilities that support the learning process, therefore, a professional laboratory management system is required to assist lecturers with computer laboratory upkeep. In the process of selecting laboratory assistants it takes quite a long time, is less efficient and cannot save the history of selection results automatically. So this research will create a decision support system using the simple additive weighting method to assist lecturers in selecting computer laboratory systems efficiently. The criteria used for selection were the GPA (Cumulative Achievement Index), Hardware Installation Tests, Software Installation Tests, LAN Installation Tests, Programming Tests, and Interviews. The final results of calculations using the simple additive weighting method will choose 2 alternatives with the highest scores to become computer laboratory assistants, namely alternative 4 (X4) with a value of 0.97 and alternative 2 with a value of 0.91 (X2). The decision support system will be built based on a website and the database system will use MySql.
Data Mining Peminatan Mata Kuliah Pilihan Mahasiswa Tingkat Akhir Jurusan Informatika Menerapkan Algoritma C4.5
Authors: Ratih Nurdiyani Sari  , Imam Purwanto
Published: March 2024

Determination of elective courses in the Informatics department, especially final year students so that they are in accordance with their wishes and interests is something that is expected. However, in fact it is not easy to be able to ascertain student interest in choosing appropriate special courses due to the limited information they have. Various obstacles and factors experienced by the campus in order to know the interest of students in choosing these courses according to the criteria are indeed quite confusing. Therefore the researchers took the initiative to create a decision support system to see the decisions made by final year students in choosing this specialization based on data mining as the chosen method. The choice of specialization will later be determined from three courses which are indeed elective courses that have been provided by the campus so that later on they can evaluate which courses are most in demand by final year students. A decision support system through an interest in elective courses using the data mining method is expected to help the campus evaluate interest in elective courses as desired and can optimize student academic achievement as well as being a record for the campus in the utilization of the elective courses given as the basis for lecture success furthermore. The results of this study are a decision tree that will show which subjects are interested or not interested in the 100 samples in this study.
Optimasi Algoritma Nai?ve Bayes Untuk Klasifikasi Buah Apel Berdasarkan Fitur Warna RGB
Authors: Afriansyah M , Saputra Joni , Sa’adati Yuan , Valian Yoga Pudya Ardhana
Published: March 2024

Apples are one type of fruit that is increasingly popular in Indonesia. This fruit is not only popular because it tastes good, but is also rich in nutrients and fiber which are beneficial for the health of the body. Along with the development of the agricultural industry in Indonesia, domestic apple production is also increasing. This study aims to classify types of apples based on RGB color using research methods that include apple image data collection, RGB feature extraction, data division with k-fold cross validation, classification model with Naive Bayes. This method utilizes color features taken from apple images as input to determine the appropriate class or type of apple. The test results show that the accuracy for the sweet level has a value of 100%, for the medium level it has a value of 86.66% and for sour it has a value of 80%. The average accuracy of the Naïve Bayes method is 88.88%. Classification results using the Naïve Bayes algorithm.
Perancanagan Sistem Informasi Perpustakaan dengan Internet of Things (IoT) Menggunakan Perangkat Radio Frekwensi Identification Berbasis Nodel Mcu Pada SMKN
Authors: UC Mariance  , Irwan  , Muhammad Arief  , Salman Nasution
Published: March 2024

This research is a software research and development (software research and development) which aims to find out the results of the development of the Internet Of Thinking at SMK Negeri 9 Medan. Data was collected using interviews, questionnaires, measurements and documentation. Data were analyzed using descriptive statistical analysis techniques. The results of the research produce an e-library application that is used in library processing by utilizing the Internet of Think (IOT). The test results show very good results based on 5 aspects of ISO 25010 characteristics, namely: functional suitability in the good category, usability with the test results in the very decent category, portability with the test results running well on nine different types of Android, performance efficiency with good test results, and compatibility with test results can run well when run concurrently with other applications.
Analisis Performansi Jaringan 4G Telkomsel Menggunakan Metode Drive Test
Authors: Muhammad Harun Ashar  , Dinda
Published: March 2024

Availability and quality of the network is very important considering the needs of people who are all connected to internet services. Kuma Hamlet, which is in Sarudu District, West Celebes, has gained access to the 4G service network through the Telkomsel operator, but problems still occur such as a slow network or weak network connection. This study aims to analyze the performance of the Telkomsel 4G network in Dusun Kuma using the Drive Test Method. The research results obtained were Telkomsel's 4G network performance results using the Drive Test Method in Kuma hamlet carried out at 15 Location Points with the help of the Gnet Track Pro Application which were obtained at 3.0 (Normal), with Maximum Performance reaching 4.0 (Good), and Minimum Performance reaching 2.3 (Bad).
Komparasi Algoritma Data Mining untuk Klasifikasi Penyakit Diabetes
Authors: Ivandari  , Much. Rifqi Maulana  , Muhammad Faizal Kurniawan  , Al Karomi M. Adib
Published: March 2024

Diabetes is one of the deadly non-communicable diseases that can attack humans. According to data from the World Health Organization (WHO), diabetes has killed at least 2 million people throughout 2019. Many recordings of each phase and condition of diabetes patients are done to support research. One of the most updated records of diabetes patients is the early stage diabetes risk prediction dataset. This dataset was released by the uci repository in late 2020 by the Diabetes Hospital in Bangladesh. Classification in data mining is a science that can extract data to look for patterns or data models to gain new knowledge. Several classification algorithms that are widely used and proven to be able to handle large data include K-NN, Naïve Bayes, and Decission Tree. This study compares the three algorithms to classify early stage diabetes risk prediction dataset. From the research results, the decision tree is the best algorithm for classifying diabetes datasets with an accuracy rate of 95.96%. Next is the KNN algorithm with an accuracy rate of 92.5%. Meanwhile, naïve Bayes only produces an accuracy rate of 86.92%. From this comparison it is known that the decision tree is the best algorithm for classifying the early stage diabetes risk prediction dataset with an accuracy rate of 95.96%.
Implementasi Algoritma Line Mapping Dengan Sensor Ultrasonik Pada Robot Pengantar Makanan Berbasis Mikrokontroler
Authors: Nirwan Sinuhaji  , Br Ginting Dewi Yohana , Benar
Published: March 2024

The development Of the world of robotics at thi time in the current era of industrial technology robotics technology is able to improve the quality and quantity of production in various factories so that naby new ideas emerge about robotics technology that are useful for human life. By utilizing robotic, especially in restaurants or restaurants, it can already be done restaurants or restaurants, it can already be done without using human hands, but it has been done with robotic technology. A line follower food delivery robot which is a type of moving robot using an ATMega16 microcontroller whose mission is to detect and follow a guide line that has been made on the track field. In the research algorithm used line mapping. This robot still uses a permanent arm, and this robot cannot automatically pick up or place food at its destination
Optimalisasi Website untuk Monitoring Jaringan OPD di Dinas Kominfo Kota Medan dengan Metode Triangulasi
Authors: Andi Zulherry  , Siregar Farid Akbar , Zuli Agustina Gultom  , Elza Ahmad Raihan
Published: March 2024

This study aims to optimize the use of a website as a tool for monitoring the network of Local Government Agencies (OPD) at the Department of Communication and Informatics (Kominfo) of Medan City using the triangulation method. The triangulation method involves the use of observation, interviews, and documentation to gain a more comprehensive understanding of the effectiveness of the website as a network monitoring tool. During the observation phase, the researcher conducted direct observations of user interactions with the monitoring website and understood the dynamics of its usage. Interviews with users and network administrators were conducted to gain direct insights into the strengths and challenges in using the website. Technical data and network performance reports were also obtained from existing documentation. The results of this study illustrate how the triangulation method can provide a deeper understanding of the effectiveness of the monitoring website. Observation revealed user interaction patterns with the website interface, interviews provided user perspectives on usability and desired improvements, and documentation provided technical context. The conclusion of this study is that the use of the triangulation method yields a more comprehensive understanding of issues and opportunities in optimizing the website for OPD network monitoring. It is expected that the results of this study will provide valuable guidance for the development and enhancement of more effective website features for monitoring OPD networks. This contributes to better and more responsive information technology infrastructure management in the local government setting.
Sistem Informasi Manajemen Surat Masuk Dan Keluar (SIM-SMK) Responsif Berbasis Web Menggunakan Metode Design Thinking
Authors: Hardiansyah Putra
Published: March 2024

The web-based Entry and Exit Management Information System (SIM-SMK) has become a critical foundation in dealing with the complexity of mail management in the modern business environment. The research introduced a web-based responsive SIM-SMK, developed using the Waterfall software development methodology. The Waterfall method was chosen because of its ability to provide a structured structure and clear stages in system development. The system is designed to improve efficiency, accuracy, and speed in inbound and outbound mail management. Key features include automatic mail reception, real-time mail status tracking, and easily accessible digital archives. Simulation and testing are carried out at every stage of development to ensure system reliability and compliance with user requirements. This web-based SIM-SMK implementation demonstrates high responsiveness in responding to user requests, enabling access from a variety of devices and platforms. With integration of the latest technology, such as a user-friendly interface, cloud-based management, and encrypted data security, this SIM-SMK meets security and information availability standards.
Sistem Informasi Administrasi Surat Berbasis Web Pada Kantor Desa Menerapkan Metode Waterfall
Authors: Setiawan Aris , Rahman Kadafi Abdul
Published: March 2024

A web-based mail administration information system is used to manage the administrative service process for submitting correspondence. The process of submitting correspondence to Rojopolo Village is still done manually using the Microsoft Word application. The obstacle faced by service officers is when they need data reports on letter submissions from residents, because letter data is only in the form of archival paper which carries the risk of losing data, besides that the manual letter submission process takes a long time so that the letter administration service is less effective and efficient. To overcome this problem, a Web-based Mail Administration Information System will be built at the Rojopolo Village Office so that it can improve the performance of the village service department in processing data so that services are more effective and efficient. The system development method uses the waterfall method and system design uses unifield modeling language (UML) diagrams. Based on the results of black box testing, the features built (such as letter submission, letter list, population registration, master data, reports) work 100%. The system was built using the Visual Basic .Net programming language and MSSQL Server database.
Naïve Bayes Classifier dengan Particle Optimize Weight Forward pada Dataset
Authors: Nuranisah  , Yanti Yusman
Published: March 2024

Classification is the process of identifying and grouping objects into classes or categories based on their characteristics. In data mining, there are two processes, namely classification and clustering, which are used to group objects based on similarities. In the classification process, various methods such as K-NN, SVM, and Naïve Bayes are often used and developments are made in the method. The Naïve Bayes classifier is proven to have advantages, such as faster calculation and better accuracy. However, this method has limitations in the attribute selection process. To overcome this limitation, the Particle Optimize Weights Forward algorithm is used to improve accuracy by assigning weights to attributes in the Naïve Bayes method. This approach improves the efficiency and effectiveness of the Naïve Bayes classifier in data classification tasks.
Penerapan Metode Fuzzy Tsukamoto dalam Penilaian Kinerja Karyawan di Perusahaan Air Minum Kabupaten OKU
Authors: Joko Kuswanto  , Benny Maulana  , Ryan Vernando  , Suhendra Berta
Published: March 2024

One effective way to encourage employee motivation is to provide recognition in the form of rewards that are in accordance with their performance. The assessment process to determine the best employees needs consideration and is certainly not easy because it must be in accordance with the criteria set by the company. Seeing these conditions, the need for the application of computerized systems that can be a solution to overcome complexity in decision making. One method in decision support systems is the fuzzy method. The method used in this study is Tsukamoto's fuzzy method. The employee appraisal process is carried out based on several criteria such as performance, discipline, and ability. From the calculation results, a Z value of 57.5 was obtained. The value is included in the category considered for reward. Based on the results of the assessment, it can be concluded that Tsukamoto's fuzzy method can be applied in employee performance appraisal.
Penilaian Penggunaan Framework COBIT 2019 dalam Pengelolaan Teknologi Informasi Pada Institusi Perguruan Tinggi
Authors: Anadya Tafdhilla  , Hasna Iftinan Jihan , Azzahra Rahmadani  , Anita Wulansari
Published: March 2024

Information Technology Governance plays a very important role in managing all company needs. Especially in the world of education, technology plays a very important role in carrying out the vision and mission of all educational service needs. However, there are many problems experienced and the order of infrastructure and how to manage it that is not maximized so that it makes the order not run well. Because this can lead to various problems from the course of the education service process. Therefore, a framework such as COBIT 2019 is needed which has become the main guideline in improving the effectiveness and efficiency of information technology management in various organizations, including universities. This journal aims to assess COBIT 2019 framework users at various higher education institutions to determine the level of capability and gaps that generally occur. Through a Systematic Literature (SLR) approach, the journal details a number of significant findings, including an in-depth understanding of how COBIT 2019 is adopted and implemented in higher education settings. With Research Question (RQ) i.e. RQ1 Which domains in IT Governance are the main focus for most colleges and high schools implementing the COBIT 2019 framework, RQ2 What are the capability levels and advice provided in most higher education institutions implementing the COBIT 2019 framework. The results of this study found 13 articles that met the inclusion criteria, after identifying titles, abstracts, and conclusions from 48 articles that fell into the exclusion criteria. From the screening of these journals, the results show that the main focus of universities and colleges in implementing the COBIT 2019 framework is on the DSS05 domain. In many higher education institutions that implement the COBIT 2019 framework, the level of capability tends to depend on a strong understanding of best practices in managing IT operations, because there are many universities that have not been able to achieve the desired capability targets. As such, these institutions are required to continuously improve their capabilities in the face of dynamic IT environment changes and strengthen efforts to maintain the resilience of their operational systems.
Perancangan Sistem Pelaporan Keluhan Pelanggan Berbasis Website Menggunakan Metode Waterfall
Authors: Adnan Buyung Nasution  , Lubis Bayu Fadhli Erlangga , Nurul Amanda Khairani Lubis  , Friska Andriani
Published: March 2024

The development of information technology has created devices that can help complete work very easily. Nowadays, many agencies and organizations use technology to complete tasks and work, one of which is keeping records using technology in providing services to customers who want to make complaints. Tirtanadi Medan Regional Drinking Water Company (PDAM) is a regional company in the province of North Sumatra. PDAM's waste water marketing branch itself was established in 2019. This is in line with the issuance of Medan Mayor Regulation No. 29 of 2019. PDAM Tirtanadi's Waste Water Marketing Branch receives customer complaints every day. PDAM Tirtanadi's Waste Water Marketing Branch still operates the system. manual, namely recording all customer complaints using a book and storing the files in a cupboard. This makes it difficult for contact parties and technicians to find data which continues to increase every time. The solution to the problems that occur at PDAM Tirtanadi Waste Water Marketing Branch is building a Website-Based Customer Complaint Reporting System at PDAM Tirtanadi Waste Water Marketing Branch which is part of the objectives of this research. This system was developed using the waterfall method. The results of this research created a Website-Based Customer Complaint Reporting System which is expected to make it easier for people to find customer complaint data and help technicians to speed up the process of repairing problems that occur to PDAM Tirtanadi Waste Water Marketing Branch customers.
Analisis Kinerja Tata Kelola Teknologi Informasi pada Bank Menggunakan Framework Cobit 2019
Authors: Kurniawansyah Kevin , Marthiawati Noneng , Rohayani Hetty , Novitasari
Published: March 2024

Jambi Province Regional Development Bank or Bank Jambi is a bank in Indonesia. This bank was founded on February 12 1959 and is domiciled in Jambi City. Jambi Regional Development Bank is one of the banks that faces competition from other banks. It expects the council to use the greatest capacity accessible, to win over the opposition. One of the assistance techniques to change the implementation of data innovation that takes advantage of business goals is data innovation administration. The acceptance of innovation administration using the COBIT 2019 structure will have a huge effect in supporting the goals of the organization on the grounds that legitimate data innovation administration can help the organization in competing with different opponents. Different improvements have occurred during the modern time frame like now and have fundamentally affected various parts of society, including the business and production areas of online stores. Taking advantage of this, processes that have been recognized as significant processes, such as APO08 (Managed Relationship), APO12 (Managed Risk), APO13 (Managed Security), DSS04 (Managed Continuity), and DSS05 (Managed Security Services), must be continues to be focused on achieving the significant standards that have been set. By focusing on this cycle and continuously assessing and improving, companies can achieve better goals in using data innovation offices for corporate achievements.
Determinan Keputusan Konsumen dalam Membeli Rumah: Studi Kasus di Graha Amaris Victory
Authors: Putra Tatas Arya , Khoirudin Rifki , Khasanah Uswatun
Published: March 2024

This study was conducted to determine the factors that influence consumer decisions in buying a house at Graha Amaris Victory. The total population in this study was 162 consumers with a sample of 62 which was calculated using the Slovin formula. Data collection was carried out using a questionnaire. Then, it was analyzed using Multiple Linear Regression. The results of this study indicate that: Simultaneously, all independent variables X1 (price), X2 (income), X3 (facilities), X4 (location), and X5 (environment) have a joint and significant influence on variable Y1 (purchase decision). This is evidenced by the value of F count (25.92) > F table (2.36) with significance (0.0000) <0.05. The entire independent variable is also able to explain the model by 69.8%, this is indicated by the R-Squared value of 0.6983. Partially, variable X1 (price) has no effect on variable Y1 (purchase decision). However, variables X2 (income), X3 (facilities), X4 (location), and X5 (environment) have a significant effect on variable Y1 (purchase decision) in Graha Amaris Victory Housing. For this reason, companies must map potential customers in promoting their products, ensure that the facilities offered are complete and in accordance with consumer needs, locations that are easily accessible, and a safe, comfortable, and clean environment.
Effect of Petai Bark Extract Gel on Tyrosinase and TRP1 Gene Expression (In Vivo Experimental Study on Hyperpigmented Wistar Mice Exposed to UVB Model)
Authors:   Postgraduate student of Biomedical Sciences, Faculty of Medicine, Universitas Islam Sultan Agung, Jl Kaligawe KM 4 Semarang 50012, Hutabarat Nenny Lynda Caroline , Subchan Prasetyowati ,   Department of Biomedical Sciences, Faculty of Medicine, Universitas Islam Sultan Agung, Jl Kaligawe KM 4 Semarang 50012, Putra Agung ,   Department of Biomedical Sciences, Faculty of Medicine, Universitas Islam Sultan Agung, Jl Kaligawe KM 4 Semarang 50012
Published: March 2024

UVB irradiation can induce the formation of Reactive Oxygen Species (ROS) which causes activation of melanin synthesis through activation of tyrosinase and tyrosinase related protein-1 (TRP1). Secondary metabolites contained in petai peel extract are known to play a role in inhibiting ROS production due to exposure to UVB rays. This study aims to determine the effect of administering petai peel extract gel on the expression of the tyrosinase and TRp1 genes in mouse skin tissue exposed to UVB. The research design was posttest only control group with a completely randomized design method. The samples studied were 24 mice exposed to UVB light with a wavelength of 302 nm and an energy of 390mJ/cm2/day 3 times a week for 2 weeks. This research was carried out in four groups, namely the healthy group (K1), the negative control group (K2), treatment 1 (K3) with 10% petai peel extract gel and treatment 2 (K4) with 20% petai peel extract gel. Tyrosinase and TRP1 gene expression was analyzed using qRT-PCR. qRT-PCR analysis showed that there was a significant decrease in tyrosinase and TRP1 gene expression between groups K3 (tyrosinase 3,19±2,12 and TRP1 4,96±3,42) and K4 (tyrosinase 0,65±0,44 and TRP1 2,22±1,18) compared to group K2 (tyrosinase 17,92±3,77 and TRP1 35,91±4,52). Administration of petai peel extract gel can reduce the expression of tyrosinase and TRP1 genes in hyperpigmentation mice exposed to UVB light.
The Effect of Sapodilla Leaf Extract on IL-6 and TGF- β Levels of Skin Tissue (Experimental Study on Male White Rats of Wistar Strain Exposed to UV Light)
Authors:   Postgraduate student of Biomedical Sciences, Faculty of Medicine, Universitas Islam Sultan Agung, Jl Kaligawe KM 4 Semarang 50012, Safitri Amalia , Sarosa Hadi ,   Department of Biomedical Sciences, Faculty of Medicine, Universitas Islam Sultan Agung, Jl Kaligawe KM 4 Semarang 50012, Pertiwi Danis ,   Department of Biomedical Sciences, Faculty of Medicine, Universitas Islam Sultan Agung, Jl Kaligawe KM 4 Semarang 50012
Published: March 2024

Excessive exposure to ultraviolet light affects cell and tissue homeostasis which has a damaging effect on DNA characterized by the formation of reactive oxygen species (ROS). Inflammation due to UV rays is the main cause of oxidative stress in the skin. Healing of wounds caused by sunburn through a complex process consisting of inflammatory cell infiltration, cell proliferation, and tissue remodeling phases to restore normal skin integrity and function, rapid healing and epithelialization to prevent infection and minimize functional and aesthetic complications. The researchers aimed to see the effect of administering sapodilla leaf extract cream (Manilkara zapota) on IL-6 and TGF-β levels in Wistar rats with sunburn. Experimental study with a post test only control group design using a total of 30 mice as experimental animals, divided randomly into 4 treatment groups consisting of a control group, a placebo group, a sapodilla leaf cream group with a dose of 25% and a 50% cream group. Mouse skin tissue exposed to UV was analyzed using the ELISA method to determine the levels of IL-6 and TGF-β. There was no significant difference in the average IL-6 levels between treatment groups with the one way anova difference test, a p value of 0.25 (p0.05), there was a significant difference in the average TGF-β levels for each group with a p value of 0.005 (P0.05), Manilkara zapota leaf extract cream had a significant effect on TGF-β levels at a dose of 50%. Administration of Manilkara zapota leaf extract cream has a dose-dependent effect on IL-6 and TGF-β levels in skin tissue of mice exposed to UV.
Height, Push-Off Angle, Explosive Power: Do they Correlate with Volleyball Athlete Jumping Performance?
Authors:   Department of Sport and Health, Vocational Faculty of Yogyakarta State University, Mandung Street, Serut, Pengasih, Kec. Wates, Kulon Progo Regency, Special Region of Yogyakarta, 55651, Indonesia, Kurniawan Faidillah , Ningrum Novi Resmi ,   Department of Sport Coaching Education, Faculty of Sport and Health Science, Yogyakarta State University, Colombo Street Yogyakarta No. 1, Karang Malang, Caturtunggal, Kec. Depok, Sleman Regency, Special Region of Yogyakarta, 55281, Indonesia, Putra Martinez Edison ,   Department of Sport Coaching Education, Faculty of Sport and Health Science, Yogyakarta State University, Colombo Street Yogyakarta No. 1, Karang Malang, Caturtunggal, Kec. Depok, Sleman Regency, Special Region of Yogyakarta, 55281, Indonesia
Published: March 2024

Background and Study Aim: Jump performance is the main asset in attacking volleyball. Jump performance is influenced by various factors that affect this indicator, such as body balance, upper and lower body coordination, as well as explosive power. The purpose of this study was to investigate the relationship between height, push-off angle, explosive power, and jumping performance in volleyball student athletes. Material and Methods: The method used was a correlational, 7 male volleyball student athletes as samples (age = 21.00 ± 1.732 years, height = 167.86 ± 1.864 cm). Sampling technique used is purposive sampling, Shapiro-Wilk and Levene's test to determine normality and homogeneity. Data calculations were processed using the help of IBM SPSS version 26.0., with decision making p < 0.05. Results: Variable Push-Off Angle and Explosive Power show significant results (p < 0.05). The Pearson correlation value for Push-Off Angle is -0.781, while the correlation value for Explosive Power is 0.908. Conversely, the variable Height does not show significant results (p > 0.05), with a Pearson Correlation value of -0.334. The findings indicate that the aspect of Explosive Power provides a significant contribution with a positive relationship. This is followed by the aspect of Push-Off Angle, but the results show that this aspect provides a moderate contribution with a negative relationship. Additionally, the aspect of Height shows a negative relationship and a low contribution value. Conclusions: The Study’s findings conclude that Push-Off Angle and Explosive Power have a significant correlation and play a crucial role in enhancing Jump Performance. However, Body Height does not exhibit a significant correlation with Jump Performance. These findings also conclude that the aspect that plays a crucial role in jump performance is explosive power.
Mathematical Modelling of Inventory Costs in Supply Chains with Horizontal Cooperation
Authors: Zahara Chasna , Mardlijah Mardlijah
Published: March 2024

Efficiency in the supply chain has become very important for companies in the era of increasingly fierce business competition. This has encouraged some companies to start implementing the concept of collaboration between companies or commonly called horizontal cooperation. Horizontal cooperation is important because companies need to work together to manage complex supply chains. To manage production in a collaborative supply chain requires designing a cost-effective model. The design of this model is expected to optimise inventory costs to achieve common goals in horizontal cooperation. This model is a form of linear programme consisting of objective function and constraint function. The objective function is to minimise the inventory cost in a four-tier supply chain with horizontal cooperation on post-production final storage at the production level only. The model was tested with 3 suppliers, 3 materials, 3 factories, 4 products, 3 distributors, and 3 consumers. The model with horizontal cooperation resulted in a total inventory cost of 1,349,830. This amount is 8% lower than the total inventory cost without horizontal cooperation. Thus, horizontal cooperation in the supply chain drastically reduces inventory costs throughout the supply chain.
Yemeni and regional maritime doctrine in light of the decline of the liberal theory of freedom of navigation in EEZ
Authors: Humran Mohammed Ali
Published: March 2024

The presence of the USCENTCOM , AFRICOM Â and 34 foreign countries in the vital Yemeni, Arab, and national maritime spheres contributed to a flagrant violation of maritime laws and international political relations. Likewise, the presence and activities of the strategic and tactical military naval units of the aircraft carrier, submarines, and American and British nuclear naval destroyers in the Red Sea. The Gulf of Aden is a breach and violation of international law and agreements regulating freedom of navigation and a blatant assault on Yemeni sovereignty in its vital maritime sphere, as it is located in exclusive Yemeni economic waters, in addition to its nuclear effects in destroying the marine environment and human security. It constitutes a source of danger to food and maritime security, stability, and international peace. The study aims to clarify the influence of Western geopolitical thought and the behavior of American foreign policy in international relations and maritime laws, which is witnessing a major decline and failure in its global policy because it used the policy of American military force to achieve its own political goals and imposed the methodology of Western liberal maritime thought to control and limit the rights of the Yemeni, Arab, and Islamic coastal states. Which contradicts customs, laws, and agreements and affects historical rights and the Yemeni, Arab, and regional maritime domain. The study is expected to confirm the modern Yemeni, Arab, and Islamic hypothesis that the high seas and international maritime waters are within a distance of 200 nautical miles from the baseline and to affirm the right of Yemen and the Arab nation to be protected. The vital area of the United Arab Emirates and the Islamic and regional countries extends from the Atlantic Ocean to the Mediterranean, the Arabian Gulf, the eastern and western Indian Ocean to the Antarctic Ocean, and there is a call for holding maritime conferences in order to develop traditional Western maritime legal theories and concepts that seek to limit the rights of coastal states, establish perceptions, and reach an update to the laws regulating freedom of maritime navigation in accordance with the views of the peoples of the world and in response to global changes in multipolarity.
Analysis of Policy Strategy for Empowerment of Fisherman in Teluk Village, Labuan Sub-District, Pandeglang Regency
Authors: Jumiati Ipah Ema , Budiati Ayuning
Published: March 2024

The community empowerment approach is sought to provide guidance for the sustainability of the livelihoods and lives of the fishing communities of Teluk Village, Labuan District, Pandeglang Regency, especially after being hit by the tsunami (22/12/2018) and the Covid-19 pandemic. Ecosystem preservation also requires commitment from stakeholders. The policy strategy is the government's task that needs to be analyzed, while the community has strong social capital, as a form of survival in facing opportunities, challenges and threats in the management of marine and fishery resources. This study aims to analyze the policy strategy for empowering fishermen in Teluk Village, Labuan District, Pandeglang Regency. The key theory used is the concept of strategy according to Hunger-Wheelen (2003: 9), through observing the external environment to describe opportunities and threats, then observing the internal environment of the organization to describe strengths and weaknesses known as Strengths, Weaknesses (weaknesses). Opportunities (opportunities), and Threats (threats). The approach used in this research is descriptive qualitative. Through this approach it is intended to be able to take a full picture of various phenomena that aim to describe, summarize various conditions, various situations or various social realities of empowering the fishing community in Teluk Village, Labuan District, Pandeglang Regency. The results of the study show that the policy strategy for empowering fishermen in Teluk Village refers to strengthening the internal and external sources of the Pandeglang Regency Maritime Service organization, including efforts in the field of empowering fishermen by carrying out various fisheries business development programs, carrying out fishermen technical guidance for business groups with fishermen. Furthermore, monitoring and evaluation, as well as carrying out reports. The suggestion that the researchers put forward is to increase various efforts to empower fishermen in the Bay Village by encouraging fishermen's involvement in accessing various institutional fishermen empowerment programs and revitalizing various facilities and infrastructure that require development and repair due to the tsunami disaster.
Analgetic Effects of Kangkung (Ipomea reptans Poir) Extract on Swiss Webstesr Mice
Authors: Handayani Andi Ika Julianti , Hidayat Saepul
Published: March 2024

One of the efficacious plants as an empirical analytic is kangkung (Ipomea reptans Poir). The purpose of this study was to determine the analgesic effect of kangkung and determine the dose of kangkung extract compared to ibuprofen. The benefit of this research is to know the analgesic effect of kangkung extract. The contents of extract kangkung are flavonoids. The research method of this experimental test is divided into 5 groups, each group consisting of 5 mice with weight 20-30 grams and age 2-3 months. Group 1 Negative control (Aquadest), group II Positive control (the suspension of ibuprofen), group III, IV, and V respectively were given the ground kangkung extract dose 6 mg/30 g, 12 mg/30 g, 24 mg/30 g. The treatment is administered orally, and for the introduction of the induction using acetic acid 0.5% dose 0.2 ml/20 g mice are intraperitonial. The result of analyzed by Test homogeneity followed by a Variant analyze Test (ANOVA) one way with SPSS for window version 16. The homogenized results of the research of extract kangkung land extract (P = 0.24), a one-way test is obtained significant result 0.00, the dose I, II, III differs significantly with negative and positive control. Conclusion of the ground Kangkung extract has an analytic effect by lowering the amount of stretched. The results showed at a dose of 28 mg/30 g mice caused the best analytic effect among the variations of the dose tested.
Citronella (Cymbopogon nardus (L.) Rendle) Leaves Infusion: Sedative Activity in Swiss-Webster Strain Male Mice
Authors: Vitamia Cszahreyloren , Handayani Wahyuni Mega
Published: March 2024

Insomnia is one of the sleep disorders and more severe symptoms can culminate in the onset of stress disorder. The high threat of being affected by COVID-19 causes insomnia, so drugs such as sedatives are required to treat this disorder. Research has been carried out on the sedative activity of infusion of citronella leaves (Cymbopogon nardus (L.) Rendle) in Swiss webster strains of male mice by the traction test method. The study used twenty-five mice randomly divided into five groups. Each group was given different preparations such as negative control given Na CMC 0.5%, the positive control group was given suspension of diazepam and the infusion group of citronella leaves with concentrations of 10% w/v, 30% w/v and 50% w/v as the test groups sequentially. The results showed that citronella leaves infusion had increased sedative activity along with in conjunction with an increment in test concentration. The infusion concentration of citronella leaves that have maximum sedative activity was found at a concentration of 50% w/v in the variations tested and have significantly different results compared to the control group.