Peer-to-peer systems nowadays are widely used because of the scalability and high reliability. File replication and consistency maintenance are widely used techniques to achieve high system performance. These techniques are connected to each other. The connection of these techniques is consistency maintenance is needed in file replication to keep the consistency between a file and the replicas. Traditional file replication and consistency maintenance methods need a high cost. The usage of IRM (Integrated file Replication and Consistency Maintenance inP2P systems) which will achieve high efficiency at a significantly lower cost can be used to solve this problem. IRM reduces redundant file replicas, consistency maintenance overhead, and unnecessary file updates.

This study aims to analyze the effect of violent content in video games related to situational factors and personal factors consisting of gender, age, aggression motivation, and aggressive personality and whether it influences aggressive behavior based on the General Aggression Model (GAM). This study has used quantitative and qualitative methods with a sampling technique that is random-stratified-proportional with the target being high school students in Batam city. In the quantitative method, as many as 400 respondents were obtained while in the qualitative method there were 30 respondents. The data analysis method used begins with a data quality test, namely the outlier test, validity test, and reliability test, then the regression test consists of the normality test, F test, T test, multicollinearity test, heteroscedasticity test, R and R2 test. The results of this study have shown that in the quantitative method the motivational factors of aggression and aggressive personality affect aggressive behavior while the results obtained from the qualitative method only that motivational factors of aggression influence aggressive behavior.

Technological developments are increasingly rapid with all the conveniences in assisting human activities both personally and in groups. From these activities get an important information stored. The customer transaction process still applies a manual system for recording all customer transactions using the cooperative ledger. This causes bank officers to find it difficult and convoluted in managing data, which is increasing day by day. The solution to the problems that occur at Bank Muamalat Medan is the application of information technology by installing an information or relevance system that allows officers to handle customer data. This research was built using PHP programming by operating PHP and MySQL as the database. The research results can be used in the process of controlling customer data at Bank Muamalat so that it can speed up the process of recording customer data.

In early 2020, the COVID-19 pandemic that swept across the world created disruption in life. COVID-19 is transmitted between people in proximity so physical (or social) distance is the main measure to reduce its spread. Lockdowns and quarantines due to the COVID-19 pandemic have led to an increase in video game players. The emergence of the trend of playing video games as one of the main ways of recreation has incited curiosity about the potential effects of playing video games on mental and physical health. The purpose of this study was to determine the correlation between video games and exercise on mental well-being during the COVID-19 pandemic in Batam city. The difference between this study and previous research is that there is yet any research that analyzes the correlation between the use of video games and exercise on health, especially mental well-being. The research used mixed quantitative and qualitative methods. The quantitative analysis used in this study was multiple regression analysis using the SPSS 26 program. The qualitative analysis was carried out by codification where the researcher categorizes answers from thematic analysis using NVivo (International QSR). Based on the results, it can be concluded that Exercise and Video Games have a positive correlation to Mental Well-Being. From the results of qualitative data, the researcher also identified a good impact from the use of Video Games towards Mental Well-Being.

TROBOS Aqua magazine is a media that contains various information about marine agribusiness and fisheries. The creation of TROBOS Aqua is a reason related to the form of commitment and also a clear manifestation of the progress of marine and fishery agribusiness. The emergence of this national media is also a form of breakthrough among other agribusiness publications. TROBOS Aqua magazine created a website to make it easier to get information related to Indonesian marine and fishery agribusiness. The purpose of the TROBOS Aqua website is to invite all readers and all parties to pay more attention, observe and provide criticism and suggestions for the benefit of advancing agribusiness development in the marine and fisheries sector in Indonesia. In using a good website, an evaluation is carried out on the website in order to find out the problems that exist on the website. The purpose of doing research on the TROBOS Aqua website is to evaluate the problems that exist on the website and redesign the evaluation results with the Heuristic Evaluation method.

This study aims to evaluate the teaching competence of Bahasa Indonesia teachers using the APKG-2 evaluation tool. This research is classified as a case study with limited data sources, namely 4 (four) learning video shows on the Youtube channel. In line with that, this research is also called ex post facto research with a descriptive evaluation approach. As a descriptive evaluation study, at the data collection stage the researcher used the APKG-2 instrument. After the data was collected, the researcher processed and analyzed the data using descriptive statistical analysis techniques. The average acquisition of the assessment in each aspect of the assessment is used by researchers to evaluate by interpreting and interpreting the data. The results of this study indicate two things. First, there are two videos, namely video 1 which is related to thematic learning focused on Bahasa Indonesia in lower grade of Elementary Schools and video 3, namely learning Bahasa Indonesia in Junior High Schools which can be categorized as Good. Meanwhile, video 2 relating to thematic learning with a focus on Bahasa Indonesia in high grade of Elementary Schools and video 4 relating to learning Bahasa Indonesia in Senior High School can be categorized as Enough. Second, based on the results of the notes in the evaluation column, the researcher noted several important things that Indonesian language teachers should pay attention to, namely apperception and delivery of learning objectives that must be effective in opening activities, feedback, interaction, use of learning methods and media that must be in harmony with the learning materials in the class, core activities, as well as the importance of reflection on closing activities.

Inductively Coupled Plasma (ICP) instrument is a tool used to measure nutrients in the soil, plants, fertilizers, and water, good measurement requires a specific extraction. This study was conducted from March to November 2013 at the Soil Testing and Research Laboratory, Indonesian Soil Research Institute. The soils were collected from the Banten, West Java, and Central Java. The experiment was carried out by the statistical method of two means. The soil used was 100 g of wind-dried soil, which was analyzed by extracting Morgan Venema, Wet Ashing HNO3 and HClO4, Morgan Wolf. The observation was made on the chemical properties of the soil with various concentrations and several extracts. The best extraction was determined based on the value of R2 and the significance of the regression equation between the results of soil analysis of several extractions with the percent yield and nutrient uptake as measured by ICP and AAS tools. The experimental results showed that the ICP-OES and AAS tools could be used with some extractions. This was indicated by the significant regression coefficient data on various extraction. The parameters K, Ca, Mg, Fe, Mn, Cu, and Zn were obtained in the HNO3 and HClO4 extraction, which could be said to be the best extractions used in ICP and AAS equipment. Morgan Wolf extract obtained insignificant results on Cu measurements. This showed that the Cu parameters in the Morgan Wolf extract were not suitable for analysis with ICP.

SMA YATPI Godong merupakan perwujudan dalam membentuk, mencerdaskan generasi muda Bangsa Indonesia. Semakin bertambahnya jumlah siswa setiap tahun, menuntut ketelitian dan ketelitian dalam memberikan informasi yang akurat dan tepat kepada siswa tanpa mengulang data yang sama atau informasi, serta tentang transparansi data keduanya nilai, kehadiran dan biaya kuliah harus dapat diakses kapan saja baik oleh siswa maupun orang tua wali. SMA YTPI Godong sangat membutuhkan a sistem yang dapat mendukung proses penyajian informasi akademik, saat ini sistem akademik diimplementasikan dengan menggunakan metode konvensional, data hanya disimpan di komputer dan tidak dapat diakses oleh seluruh civitas akademika dan orang tua. Untuk menghadapi ini masalah, sistem Informasi Akademik Berbasis Web dibutuhkan di SMA YTPI Godong sebagai amemberikan solusi yang akurat, cepat dan tepat informasi. Sistem informasi akademik ditawarkan dapat mengelola informasi akademik, baik data kehadiran siswa, absensi mengajar dan absen mengajar guru, mengelola data nilai, jadwal pelajaran, jadwal mengajar guru, dan bisa mempublikasikan informasi yang berkaitan dengan akademik. Itu pengembangan informasi akademik berbasis web ini sistem menggunakan pengembangan aplikasi cepat (RAD) metode, model pengembangan ini digunakan karena ini model dianggap model dengan mengutamakan waktu, jadi prosesnya relatif singkat sehingga dengan pengembangan sistem informasi ini dapat dilakukan bermanfaat dalam memberikan kemudahan baik bagi siswa maupun guru.

In the current era, learning adheres to the 2013 curriculum which includes HOTS (Higher Order Thinking Skills) consisting of critical thinking competencies, creativity and innovation, communication skills, collaboration skills and selfconfidence. These five things need to be trained or improved for deaf children so that they can take part in learning well. So learning media products are made that can be used to recognize letters and numbers. This Learning Media is equipped with sign language to support the understanding of deaf children in addition, it is packaged with an attractive appearance so that deaf children are interested in learning it. Often in daily teaching and learning activities students still often experience problems in remembering the material being taught both in the
introduction of letters and also the introduction of numbers and what becomes an obstacle for students learning must be done repeatedly so that they can
remember it and can really understand what it means. being taught and also they are sometimes bored and lazy in learning. From the problems that occur above,
it is necessary to have a learning media that can help children with disabilities, especially the deaf, especially for the introduction of numbers and letters
so that they can easily understand and understand letters and numbers. not bored, bored and lazy in learning. Learning media in the form of an android
application so that it can be used on smartphones which are currently very widely used by both teachers and parents of students with disabilities.

The current era is growing Live streaming which includes audio and video data. This research method collects data through the results of measuring Video Streaming latency (delay time) on variations of Local Area Network and Web-based computer networks. Based on the analysis of measurement results, the latency value (delay time) of Video Streaming on Local Area Network-based devices using Quality of Service (QoS) obtained a value of 8.58 ms and is smaller (optimal) compared to Web-based networks.
Keywords : Quality of Service, latency, LAN, Web