The main goal of this study is to create and analyze effectiveness of poster about the dangers of smoking to people in the city of Batam. The people in the city of Batam who use Instagram is the subject of this study. Multimedia Development Life Cycle (MDLC) is the method used to develop the poster and the analysis is carried by quantitative approach. Stratified Random Sampling method is the technique used in the study to collect samples. Data dissemination was carried out by distributing online questionnaires through various social media platforms. The results obtained from distributing the questionnaires were from 111 respondents. Hypotheses analysis will be carried out using the linear regression test method with the help of the SPSS 25 software. The result of this study is Performance Expectance has no significant influence on Behavioral Intention. Meanwhile Effort Expectancy, Social Influence and Facilitating Condition has influence to Behavioral Intention. The study's findings are believed to be a resource and source of knowledge for readers and academics in the future.

Sub-districts according to the composition, position, duties are regulated by government decree. As a regional body, the Camat is given power. In addition, districts also carry out public administration tasks. North Semarang Village, having its address at Jl Taman Brotojoyo No. 02 Semarang, functions related to the management of outgoing letters and receipt of incoming letters are carried out by recording them in a ledger and securing each incoming and outgoing letter by the head of the personnel department and general sub-section and stored in the existing cupboard. This again brings problems when searching for old data, because it may not know where it is stored, it may be corrupted or it may be lost from memory. This method is ineffective and has many drawbacks. Storing incoming and outgoing mail in the mailbox, for example, can easily spoil mail as more and more letters accumulate each day. Not to mention the nature of the room that is wet and insects accelerate paper damage. On the other hand, documenting incoming and outgoing letters through an agenda book also lengthens the registration process. Under these conditions, it is necessary to develop a mobile web-based filing management information system.

PT Solen System Indonesia is a company engaged in the manufacture of software. PT Solen System Indonesia has employee data containing sprint review data. Sprint review data is data per week that is inputted into the google sheets file. With the data number reaches from 24 google sheet files over a period of one year, admins have difficulty because they have to access google sheets files one by one to be able to view employee performance data. Admin cannot know the extent of the performance of each employee in completing the workload in a certain period. Thus, a website-based strategic dashboard was created using the User centered Design (UCD) method. The dashboard was then tested using usability test and SUS. Results of the dashboard test for the admin and all employees of PT Solen System Indonesia obtained an effectiveness value of 89%, efficiency of 78% and satisfaction of 85%.

Scheduling is a routine job that is carried out every semester in the college academic system. There are two schedules that are often found in universities, namely the scheduling of lectures and exams, both theoretical and practical. The scheduling process is a process for implementing events that contain components of courses, lecturers, classes and semesters in time slots that contain time and space components. Many aspects must be considered in order to process optimal class schedules and exams. The problem that occurs at this time is the process of making teaching decrees for lecturers which is automatic from the existing system. Research begins with planning, designing, coding, and testing. With the improvement of the scheduling information system using extreme programming, it is hoped that it can help make teaching decrees in the Polines Accounting department.

Changes or additions of new employee in a company is a normal thing and can be happen anytime. The process of training and introducing to new employee is the initial stage carried out by company after accepting new employee, this process is called onboarding. This research aims to designing and developing mobile application that is used to train and introduce for new employee. The application is developed with RAD (Rapid Application Development) method and using flutter framework along with firebase as the data storage. This research also doing analysis to the effectiveness usage of the mobile application developed with TAM (Technology Acceptance Model) model. Variables that is used in the analysis are Perceived Ease of Use, Perceived Usefulness, and Attitude Towards Using. Sample of this research is all workers in the Batam city. The research method is quantitative and analyze with regression using SPSS application. This research proves that mobile application can be used to conduct employee training.

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.

Mangroves are a multifunctional coastal ecosystem in coastal areas. Mangrove ecosystems can adapt to extreme coastal conditions, but are highly vulnerable to hazards such as regional degradation, species degradation, conflicts of interest, exploitation, and excessive mangrove use. Remote identification can help obtain the latest data related to the area of mangrove areas with time criteria and coverage of certain areas. The remote sensing used is Google Earth Engine (GEE). This study aims to be able to determine changes in the area of mangrove distribution and the level of density of mangrove ecosystems on Panjang Island, Serang Regency for the last 5 years from 2017 to 2021. The results of the distribution of mangrove areas in the span of 5 years from 2017 to 2021 the mangrove area on Panjang Island experienced a decrease in mangrove area by 5.47 ha. The level of mangrove density on Panjang island in the 5-year period from 2017 to 2021 is classified as a very rare mangrove density category.

Accurate weather forecasts play an important role in today's world as various sectors such as marine, navigation, agriculture and industry are basically dependent on weather conditions. Weather forecasts are also used to predict the occurrence of natural disasters. Weather forecasting determines the exact value of weather parameters and then predicts future weather conditions. In this study the parameters used are. Different weather parameters were collected from the Serang Maritime Meteorological Station and then analyzed using a neural network-based algorithm, namely Long-short term memory (LSTM). In predicting future weather conditions using LSTM neural networks are trained using a combination of different weather parameters, the weather parameters used are temperature, humidity, rainfall, and wind speed. After training the LSTM model using these parameters, future weather predictions are performed. The prediction results are then evaluated using RMSE. Prediction results show that the model is more accurate when predicting temperature data with RMSE 0.37, then RMSE wind speed 0.72, RMSE sunlight 2.79, and RMSE humidity 5.05. This means that the model is very good at studying weather data, inversely proportional to humidity data.

This study aims to find out: Implementation of incoming and outgoing mail management, obstacles encountered in managing incoming and outgoing mail and efforts that can be made to improve management of incoming and outgoing mail at the Bappeda-Su office. Letters in the North Sumatra Regional Development Planning Agency (Bappeda) are still managed manually. To overcome this problem, we need an information system that can assist in archiving incoming and outgoing letters.