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The Industrial Revolution 4.0, which coincided with the presence of the Covid-19 pandemic, demanded that the world of education implement a different system. Classroom learning that involves students directly is now starting to switch to online learning. One of the learning media used is the Kahoot application. Interactive quizzes in this application can be implemented on an ongoing basis, including in face-to-face learning after the pandemic. Unfortunately, not all educational institutions know about the existence and benefits of this application. Sungai Putih High School, Kampar Regency, which is our service partner, is one of them. This dedication to introducing interactive learning through online media has had satisfactory results. From 38 respondents covering all classes and teachers at the high school, 100% of respondents felt interested in this learning and 96% of respondents agreed that learning evaluation using Kahoot was felt to be more effective than tests in general. For the continuity of implementation, the service team provided a Kahoot Usage Guide book which was designed directly by the service team.

The most noticeable impacts of the Covid-19 pandemic are school closures and online distance learning (PJJ). Online learning uses the Internet to provide teaching materials to students. Barriers to online learning are felt by both teachers and students, with streaming learning via Zoom sometimes having unstable internet connections. Another obstacle to online learning between teachers and students is the teacher-student relationship. You look nervous because you get stuck in the Zoom application. A barrier to online learning between students and parents is that it is difficult for working parents to tutor their children because they are working. The impact of online learning itself takes the form of reduced learning ability and changes in student behavior. The purpose of this non-research journal is that schools need new strategies to meet their post-pandemic educational goals. In order to overcome this, it is necessary to develop human resources by implementing education that reflects the cultural characteristics of the country. Education must respond not only to global requirements, but also to developments in digital technology.

BUMDES Lantongau is one of the Lantongau Village-Owned Enterprises whose one line of business is to distribute clean water needs in four villages, namely Lantongau Village, Morikana Village, Katukobari Village, and Lakorua Village. In order to facilitate the registration process, meter recording, payment bills, service interruption information, and customer complaints, applications that facilitate all service processes. Therefore, the most suitable application is using an Android-based application, the use of an Android-based application is an option because almost all customers have an Android device, so that services can be directly carried out quickly, easily, effectively and efficiently. With this application, it is easier for the customer and the BUMDES Lantongau in services ranging from customer registration, meter recording, billing payments, customer complaints and information on service disruptions, all can be done through the application. This application is designed using android studio with Research and Development (R&D) development method   Keywords: Android Application, Customer Service, BUMDES Lantongau

21st century learning has had a huge impact on students and teachers. Students must be guided to be able to think critically to overcome various kinds of problems that occur. Furthermore, teachers as education play an important role in honing problem solving skills in their students. The problem solving learning model is a learning model that directs students to solve problems in the learning process. In addition, the problem solving learning model is not fully capable of being applied by science teachers. Although, in the 2013 curriculum in Indonesia a teacher is required to be able to apply the problem solving model in conducting science learning. Not only that, the limited experience of teachers in applying variations of these learning models is still the main obstacle in learning science. So, teachers in Indonesia must have extensive experience in adopting problem solving learning models. This study aims to determine the effectiveness of the problem solving learning model in learning science in Indonesia. This research is a kind of meta-analysis research. The research sample came from analyzing national and international journals published from 2010-2022. The selection of data used as samples was carried out very strictly and thoroughly. Searching for this research sample through Google Scholar, Eric, Hindawi, Sage, Springer, Proquest, IEEE, DOAJ, and Wiley. The sample selection technique is a purposive sampling technique. In this technique, the data that is used as a sample must have a relationship with the research variable. In searching for sample keywords, namely problem solving learning models in learning science (Biology, Chemistry and Physics) in various schools in Indonesia. Data analysis is descriptive statistical analysis with the OpenMEE application. Data analysis was performed by calculating effect size, standard deviation (SD), average value (mean), and N-gain. The results of this study concluded that the application of the problem solving learning model was very effective in learning science in Indonesia. This learning model is able to increase student learning outcomes with an average score of 86 students in the experimental class and 65.5 in the control class, the effect size value is 1.39 in the high category and N-Gain is 0.55.

Fires doesn’t know the place and time, they can happen anywhere and anytime. Some of the causes of fires are human error, electrical short circuit, cigarettes, stoves, etc. As a result, many parties suffered losses, both property, business entities, and casualties. Based on these problems, we need a system that is able to detect fires and take preventive action, namely notifications via the internet using the Blynk application. In this study, the parameters used are the temperature sensor, the MQ-2 smoke sensor and the flame sensor. The output of the system is a buzzer, LED, LCD, and Blynk app as notifications. The Fuzzy Logic method is applied to the system to control the Buzzer, LED, LCD and notification determinants to the Blynk application.

Accounting information systems play an important role in recording a company's transactions. Because it can assist companies in working on their financial reports, so that the resulting data is well organized and can speed up the data processing process. CV. RR Wasilah Teknik is a company engaged in welding and lathe services. The main problem that occurs in this company is that it is still recording transactions manually and using Microsoft excel. This results in the system not running effectively and efficiently. So, it is necessary to make a computerized application. The research method is applied to the research phase such as data collection, system analysis, system design, system implementation, and system testing. The results of the study are cash management applications that help companies record incoming and outgoing cash transactions. This application helps the system running in the company to be more effective and efficient.

This research is motivated by the existence of one marketplace application. This study discusses the style of language in featured advertisements in the application. Advertising language style has the ability to convince readers by playing words or phrases so that readers are influenced to use the product. The purpose of this study is to analyze and describe the style of advertising language in the shopee application. The method used is descriptive qualitative method. The data in this study is the style of advertising language and the source of the data in the study is advertisements for shopee features that appear on youtube and television. The data collection technique in this study is the method of listening. Based on the results of the discussion on the analysis of the use of advertising language style on YouTube, it can be concluded that the Shopee application uses persuasive language style in the advertisements that are displayed, namely the use of repetition figurehead.

The purpose of this study was to determine whether or not the influence of customer experience, consumer confidence, prices and flight ticket purchasing decisions on the Traveloka application for UNIMAR AMNI Semarang Students. The sample in this study amounted to 52 respondents who used airline ticket services in the Traveloka application. By using probability sampling technique, namely by random sampling. Analysis of the data used in this study is descriptive analysis and quantitative analysis, the data were analyzed using multiple linear regression analysis with the help of (software) Statistical Package For Social Science (SPSS) version 26. The results of the study by partially testing the t-test hypothesis showed that Customer experience, consumer trust, and price have a positive and significant effect on purchasing decisions. Based on the research results, it can be seen that the research model of the multiple linear regression equation is Y= 0.095 + 0.484.X1 + 0.195.X2 +0.295.X3 + . From the regression equation, it can be seen that the most dominant variable affecting the increase in the number of passengers is the price variable with a regression coefficient of 0.095. And the R2 test (Adjusted R Square) obtained results of 0.780 or 78.0% which means that purchasing decisions are influenced by customer experience, consumer confidence and price variables which are 63.8% and other factors that influence passenger decisions are 36.2 % or 0.362.

This research will show how external debt and also the level of FDI affect the GRDP of case studies in the Makassar region from 2009-2013. The theory of multiple linear regression analysis is applied in quantitative research methodology. Secondary data from the Makassar Central Bureau of Statistics is used as a data source. Information only regarding the amount of Indonesian loans, the total level of realization of FDI inflows by Indonesia, but also figures regarding the degree and total local national GRDP of Makassar City were all collected using straight literary elements using figures for the period 2009 to 2013 (5 years). The quantitative approach is indeed a technique used to assess the level of guiding decisions in one component having several other characteristics using the SPSS 25 application. Thus, producing an initial model that shows a positive and beneficial effect of the independent variables external debt and FDI is relevant to the dependent variable of City GRDP Macassar. This shows that it is important to increase these two variables because the GRDP level of Makassar city will also increase.

The Tri Dharma of Higher Education requires lecturers to carry out research, teaching and community service. Therefore as a form of lecturer's moral responsibility to the community to improve knowledge through formal and non-formal education. Our team of lecturers will carry out community service in the form of making training on the internet in the form of webminars that are very suitable to reach audiences during this pandemic. The coaching material that will be delivered by the lecturer team includes the use of SEM-GSCA and the GSCA-PRO application for research for students and lecturers (S1, S2, S3). The purpose of this training is to introduce SEM (Structural Equation Modeling) Applications Generalized Structure Component Analyst and how to use and process data through the GSCA-PRO application. So far, students and lecturers are still patterned with a regression analysis, by studying SEM students and lecturers will have the freedom in making the research model. The benefit that can be taken from training on the use of SEM-GSCA and the GSCA-PRO Application for research for students and lecturers is that there are other options offered to students and lecturers in terms of doing research.

Legal certainty can be reached by good and explicit principles in a legislation, as well as its application. Investment requires legal certainty as well. On April 26, 2007, the Investment Law No. 25 of 2007 was enacted. This legislation was enacted to replace Law No. 1 of 1967 on Foreign Investment and Law No. 6 of 1968 on Domestic Investment. There are eleven factors that serve as benchmarks for gauging a country's ease of doing business. One of the indications is related to the resolution of investment conflicts, or in this case, contract enforcement and bankruptcy proceedings. According to the Doing Business 2019 report, Indonesia ranks 73rd (seventy-three) in terms of ease of doing business. Indonesia's EoDB ranking remains distant from the aim of entering the world's top 40 (forty) ranks. This is due to the fact that, among other things, dispute resolution in Indonesia still has various issues, including basic regulations, the trial procedure, and decision implementation. Meanwhile, affordable, fast, and simple conflict resolution facilities are required in the corporate world (according to EoDB indications). The results of this descriptive analytical research utilizing a normative juridical approach reveal that there is no implementing regulation of Law Number 25 of 2007 concerning Investment, which focuses on discussing investment disputes, therefore there is no strong legal certainty in investing in Indonesia. Furthermore, there are several issues concerning the resolution of bankruptcy cases, some of which stem from regulations, namely Law Number 37 of 2004 concerning Bankruptcy and Postponement of Debt Payment Obligations, some of which can result in certain interests, the length of the bankruptcy court process, and legal certainty following the bankruptcy decision. A breakthrough or update that can support EoDB is required, one of which can be done in the field of investment dispute resolution, particularly connected to contract enforcement and bankruptcy case settlement, by creating implementing regulations and updating associated regulations.

The advances in mobile technology have created a new learning method known as mobile learning technology or mobile learning. This method utilizes the use of smartphones which have become part of the daily life of people of all ages and levels of education. in this mobile learning ,android platform is selected. The reason for choosing android is that it is the most popular mobile OS. This learning is designed to run on Android with the aim that it can be used easily and can be run at any time as long as you carry an Android cellphone and there is an internet connection. This application is addressed to the Persatuan pemuda sandya karya mandiri desa reksosari kec suruh kabupaten Semarang, which is an activity of a youth group that is trying to develop and improve their video streaming channel . they need learning to improve their digital video processing skills to improve the quality of their video output. because this youth union consists of various ages and various educational backgrounds, the making of learning videos must be easy to operate, easy to display and does not require complicated equipment. The development of this application is based on usability which is the most important aspect of an application.

Gramedia Digital application itself is a good innovation in the digital era now. Even though it has been used by users but there are still some obstacles or lack of information contained on the application, therefore it requires maturity and capability assessment of the application. The COBIT 5 framework is an IT audit standard that has been issued by ISACA, COBIT 5 itself has a total of 11 domains but this time the research only focuses on 5 domains namely EDM05, APO05, BAI04, DSS01, MEA01. The results of the maturity and capability level calculations from Gramedia Digital applications resulted in an average of EDM05 with a result of 2.7, APO05 with a result of 2.8, BAI04 with a result of 2.7, DSS01 with a result of 2.7, MEA01 with a result of 2.8. And the average capability generated by these domains is rounded to 3. The conclusion in this study gramedia Digital application has not met the targeted target of 4.

Skincare are very important for facial care. There are various skin problems one of which is premature aging and dull skin. The perpose of the writer is to know and explain the process making mangosteen skin serum and white rice as anti-aging and brightening, to find out and explain the benefits of mangosteen skin and white rice as anti-aging and brightening and to explain the public acceptance of the mangosteen skin serum and the white rice as anti-aging and brightening. the methoud used is observation, documentation, experiment, interview, questionares and literature. The third experiment produced the composition are 2ml glyserin, 1,5ml mangosteen extract, 1,5ml white rice extract, 5ml aquades, 0,5ml phenoxythanol, 1gr allantoin and 0,5g hydroxtethyl cellulose. Gives off the color beige, nice smell, thick texture and a moist application. After 14 times use, the face will feel moist, bright and fine line and wrikles on the faces are camouflaged. Based on public trials, the average output of 30 panels is the third product with an average of 3,43. The second product has an average of 3,26 and the first product hasan average of 2,93. Thus, it can be concluded that products could be the innovation of problems of premature aging and dull skin