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The aim of this research is to find out how the European Union's complaint against Indonesia regarding the ban on nickel exports at the World Trade Organization (WTO) occurred. The biggest problem with this is the degradation of nickel in nature. Solving this problem requires nickel empowerment. This can be avoided by stopping shipments abroad, which will help anticipate the current depletion of nickel supplies. Therefore, the Indonesian government must hurry to increase nickel supplies, with activities aimed at increasing the added value of nickel in the country's natural resources.  

  The formulation of the problem raised in this community service activity is regarding the lack of knowledge of the community in Kotah Village, Kec. Jrengik Kab. Confused about women's morals that really must be understood in the study of the book Akhlāq al-Nisa', what are the virtues that women have, things that a woman must do and avoid and what threats a woman will get if she violates the Shari'a ' in the Islamic religion. To find alternative solutions to the above, a study of the Akhlāq al-Nisa' book was held in an effort to improve the quality of students and students in reading the yellow book in Kotah Village, Kec. Jrengik Kab. Lacquer. The objectives of this PKM activity are: 1. To equip students and students with knowledge in reading the yellow book 2. To improve the quality and knowledge of students and students in reading the book. The problem solving framework designed in PKM activities in the form of implementing this training activity is: 1. Periodic explanation of materials. 2. Conduct book reading exercises using the book Akhlāq al-Nisā' every Wednesday night which is weekly. Based on interviews, question and answer and direct observation during the activity, this community service activity yielded the following results: first, increasing the knowledge of students and students in reading the yellow book, second is increasing the quality and knowledge of students and students in reading the book, third is increasing knowledge and Community morals.

Study of the book Riya>d} al-S{a>lih}i>n in Guwah hamlet, Rongdurin village, Tanah Merah, Bangkalan. The formulation of the problem raised in this community service activity is related to the lack of implementation of noble morals in everyday life. To find alternative solutions to the above, a study of the Adab Ṭalibīn book was held in an effort to improve the quality of religious knowledge for young people of the Ashab Al-Suffah group and to be able to apply good morals in everyday life. The objectives of this PKM activity are: 1. To equip youth with knowledge directly from original sources. 2. Increase the knowledge and morals of youth as a nation's generation with the substance of the book being studied. The problem solving framework designed in PKM activities in the form of implementing this training activity is: 1. Periodic explanation of materials. 2. Designing a weekly study of the Adab Ṭalibīn book every Monday night. 3. Evaluation of training results. Based on interviews, questions and answers and direct observations during the activity, this community service activity yielded the following results: first, increasing youth knowledge and understanding in the religious sphere, second, increasing youth knowledge and morals and being able to implement it in everyday life.

Quantum computing has emerged as a revolutionary paradigm, holding immense potential to solve complex problems that classical computing struggles to address. This study explores the application of quantum computing in cryptography, with a specific focus on two major quantum algorithms: Shor’s algorithm for large number factorization and Grover’s algorithm for unstructured database searching. The main objective of this research is to compare the performance of these quantum algorithms with classical cryptographic methods in terms of computational efficiency and time. Shor’s algorithm, which can factorize large numbers in polynomial time, presents a significant threat to the security of public-key cryptosystems such as RSA, which rely on the difficulty of factoring large numbers. On the other hand, Grover’s algorithm offers a quadratic speedup for searching unstructured databases, making it highly relevant for symmetric key cryptography systems like AES. In this study, simulations of both algorithms were conducted using quantum simulators to assess their speed and effectiveness in solving cryptographic challenges. The results demonstrate that quantum algorithms significantly reduce the computation time compared to classical methods, with Shor’s algorithm efficiently solving factorization problems and Grover’s algorithm accelerating key searching processes. However, while these quantum algorithms show promise in improving cryptographic systems, the implementation of large-scale quantum computers remains a challenge. This research highlights the potential of quantum computing to revolutionize data security and underscores the need for further development in quantum algorithms and the transition to quantum-resistant cryptographic systems to safeguard against the threat posed by quantum computers.

This research aims to reconcile the Deli Serdang Regency Regional Revenue and Expenditure Budget Realization Report (APBD). This research uses descriptive research methods and a qualitative approach, examining the potential for solving contemporary problems using data collection, categorization and analysis methodologies. A qualitative approach to describe ongoing phenomena or determine the characteristics of data in the research period, with the aim of answering the main research questions. The results of the research, namely those affecting the APBN for the 2019–2022 Fiscal Year, show that the Deli Serdang Regency Government shows inefficiency in managing state revenues as evidenced by an efficiency ratio of only 80.86 percent. Deli Serdang Regency experienced a significant increase in revenue in the 2019–2022 budget year, in line with the regional government's success in maintaining or exceeding the revenue target from the previous budget year.  

The application of an expert system (expert system) which is very useful for the wider community is certainly very much needed by society today. Apart from that, this development also supports various human activities. Expert systems are also able to make recommendations for a series of user actions. The aim of this research is to determine the development of expert systems in management information systems. The research method used in this research is a descriptive research method with theoretical studies, namely a method that discusses several possibilities for solving actual problems by collecting data, compiling or classifying them, analyzing and interpreting them with existing theories and comparing them from literature sources. The research results show the development of expert systems in management information systems, namely knowledge bases, inference engines, and user interfaces. It can be concluded that expert systems help work and technological progress more quickly and the decision-making process is based on existing information and facts. Expert systems have also been used in various fields, from medical, legal, to financial. In developing an expert system, it is necessary to increase the level of knowledge related to the latest technology and information. So you can utilize modern technology to complete work more effectively and efficiently.

The SME empowerment policy is generally directed at supporting efforts to overcome poverty and inequality, create job opportunities and increase exports, as well as agricultural and rural revitalization, which are national development priorities. In addition, the development of small and medium enterprises (MSMEs) is directed at making a significant contribution to creating job opportunities, increasing exports and increasing competitiveness.This Community Service Activity (PKM) is focused on MSMEs in Pagerharjo Village, Kulon Progo Regency. The reason for choosing this service location is because Pagerharjo Village is an Independent Cultural Village which has implemented the Preneur Village program since 2019. The Preneur Village is currently still active and developing. The problem with MSMEs, under the management of BUMDes Binangun Pagerharjo in Pagerharjo Village, Samigaluh, Kulon Progo Regency, is the lack of entrepreneurial spirit and financial bookkeeping which, on average, is still done manually.The results of the service include responses and evaluations from participants regarding the training that has been provided. The response was given by the Director of BUMDes who was impressed with the training provided which was different from the training that had been provided previously. Previous training involved mostly listening to lectures, whereas the current training involves participants being active in solving the various problems they face. The evaluation results show that the participants' knowledge has increased and their insight into their business has also increased. It turns out that producing a business is not only based on generations, but also requires innovation so that marketing will continue to develop and financial management will also improve.

The Digital Era is a time where information can be accessed and disseminated very easily using digital technology. Globally, technology is present to help humans carry out various activities. So the era of technological disruption is something that needs to be faced. In order to continue to be able to provide the best for individuals and community groups in the business world, it is necessary to carry out various innovations and improve the quality of skills. The aim of this literature research is to find out how the era of digital disruption has affected technological development in Indonesia. The research method used is descriptive theoretical study, namely a method that discusses several possibilities for solving actual problems by collecting data, compiling or classifying them, analyzing and interpreting them with existing theories and comparing them from literature sources. The research results show that the era of digital disruption in Indonesia has developed and has entered the modern era, such as digital technology disruption in the fields of health, finance and education. It can be concluded that digital disruption is an innovation that changes people's way of life and thinking patterns, changes company work culture, or even creates new markets that have never existed before. So it has positive and negative impacts with the era of digital disruption. Therefore, if it is not faced with the right strategy, technological disruption can threaten conventional businesses and threaten industrial markets. In facing technological/digital disruption, companies need to improve the quality of more modern technology so that they are not left behind and can compete with industry and companies as well as improving the quality of human resources.

Abstract. This study aims to determine whether there is an influence of the problem based learning model integrated with video animation on the mathematical problem solving abilities of class VIII students. This research was conducted at SMP Negeri 6 Percut Sei Tuan, TA 2022/2023. The research method used is a quasi-experimental design method. The sample in this study consisted of two classes namelyclass VIII-3 as the experimental class and class VIII-4 as the control class. The experimental class uses a problem-based learning model integrated with video animation and a control class with conventional learning. Obtaining the average score of the final test (posttest) of the experimental class students is equal to 89.22, whereas in the control class the average result of the student's final test score was 72.55, in the hypothesis test, the results obtained from the average difference test (t-test) with statistical values t_hitung>t_tabel(10.56 > 1,671 ) which means there is an influence from the usea problem-based learning model integrated with video animation that is applied to the experimental class. This indicates that the mathematical problem solving abilities of the experimental class students are better than the control class.

As is known, students' active learning will grow and be visible if the classroom conditions are enjoyable for them. Furthermore, the class atmosphere will be pleasant if students are active in class. Students' active learning in class can be stimulated through the use of appropriate teaching strategies by teachers. One strategy that is appropriate to use is the Discovery Learning learning strategy, which is a strategy that involves students playing an active role in learning by training students to think critically through problem solving by formulating hypotheses, searching for information, analyzing, and arriving at conclusions. Through this strategy, the problem of students often not doing assignments, and others will be resolved. The research method used in writing this journal is the library study method, namely by collecting some information through books, journals, magazines, newspapers, and also through other sources that are relevant to the title of this journal. Keywords: active learning of students, Discovery Learning Strategy.

Optimization of the village mosque of Kajan Blega Bangkalan. The problem formulation raised in this community service activity is Concerning with the weak understanding of mosque administrators towards the concept of efforts to prosper mosques and management the al-Mubarokah Kajan Blega Bangkalan mosque which is very urgent for part of the preaching of the people Islam. To find alternative solutions to the above, training was held Efforts to optimize and manage mosques at Masjid al-Mubarokah Kajan Blega Bangkalan. The objectives of this PKM activity are: 1. To equip mosque administrators towards the knowledge of Mosque Management. 2. Equip the Mosque Management as a preacher in a better change. 3. Improve knowledge and morals of society through mosque management that touches the heart the congregation The problem solving framework designed in PKM activities in the form of implementation of this training activity is: 1. Explanation of the concept of good mosque management theory with a philosophical basis followed by practice of finding the root of the problem according to conditions. 2. Design and implement training mosque management accompanied by the supervision and guidance of the administrators of the inner mosque planning activities to be carried out in the next year. 3. Evaluation of training results. Based on interviews, question and answer and direct observation during activities take place, this community service activity provides results: first, Increased knowledge and understanding of the congregation, second is to equip the Jama'ah as a missionary interpreter, the third is to improve knowledge and morals of the community, the formation of a ready mosque management preach.

Mathematics anxiety has long been recognized as a barrier to student achievement, particularly in an era where digital technologies are reshaping education. This study aims to investigate the role of cognitive psychology in modern mathematics learning as a means of reducing math anxiety and enhancing numerical creativity among digital generation learners. Employing an experimental classroom design informed by neuroeducation principles, the research explored how interventions rooted in cognitive regulation, emotional control, and cognitive load management influence student outcomes. Data were collected through pre-test and post-test instruments measuring levels of math anxiety and creativity in numerical problem-solving. The findings demonstrate a significant reduction in mathematics anxiety following the implementation of the neuroeducation-based intervention. Simultaneously, students exhibited marked improvements in creative approaches to numerical challenges, indicating that addressing psychological factors is essential to unlocking mathematical potential. These results highlight the importance of integrating cognitive psychology into mathematics instruction, moving beyond procedural learning toward a holistic approach that considers students’ emotional and cognitive states. The implications extend to educators, curriculum designers, and policymakers, suggesting that modern mathematics education should balance cognitive development, emotional well-being, and creative problem-solving skills to prepare students for the challenges of a rapidly evolving digital world.

A This study aims to determine: (1) the effect of Blended Learning models towards Mathematical Student’s Problem Solving Abilities and Self-Regulated, (2) the improvement of student’s mathematical problem solving and self regulated learning (3) the advantages of the advantages and disadvantages of blended learning model. This type of research includes descriptive qualitative research using library research methods. The data in this study were obtained from a collection of literature such as theses and journals that are relevant to the topic of discussion, namely Mathematical Student’s Problem Solving Abilities And Self-Regulated. The results show that, 1) Blended Learning Model has a great effect on students' problem solving abilities based on the overall effect size calculation which produces an average effect size of 1.56 where this number is included in the high category and Blended Learning Model has a great effect on student’s self-regulated based on the overall effect size calculation which produces an average effect size of 1.73  2) There is an increase in  mathematical the student's problem solving abilities and self-regulated learning that are taught through blended learning models. This can be seen from the achievement of N-Gain value and indicators in the experimental class in the literature which is generally better than the control class. 3) Based on the analysis, it was found that the advantages and disadvantages of blended learning. it can be obtained that the advantages of blended learning models as follows: (a) Learning is more effective and efficient, (b) Improve accessibility. with blended learning, it is easier for learning participants to access material learning. and disadvantages of blended learning is Not evenly distributed facilities owned by students, such as computers and internet access. Even though blended learning requires adequate internet access, if the network is inadequate it will make it difficult for participants to take part in independent learning via online.

This research is a Classroom Action Research (PTK) consisting of 2 cycles, each consisting of 2 meetings. Before giving action, an initial ability test is first given and at the end of each cycle is given a problem-solving ability test. From the results of the analysis of initial ability test data, it was obtained that many students achieved learning completeness from the initial ability test, namely 18 out of 28 students or 21% with a grade average of 26,7. The results of data analysis in the first cycle after applying the Reciprocal Teaching type cooperative learning model showed that the number of students who achieved learning completeness was 13 out of 28 students or 61% with a grade average of 70,7. The results of data analysis at the end of cycle II with the same learning obtained the number of students achieving learning completeness, namely 24 out of 28 students or 86% with a grade average of 90,86. This means that there is an increase in students' mathematical problem-solving skills from cycle I to cycle II. Based on classical completeness criteria, this learning has reached the classical completeness target.

This research is a Classroom Action Research (PTK) which is carried out in 2 cycles. Before carrying out research or taking action, an initial test is given to measure students' problem-solving ability and at the end of each cycle a problem-solving ability test is given. This study aims to determine how to improve problem solving skills through the application of the Geogebra-assisted Problem Based Learning (PBL) learning model. Students experienced an increase in problem-solving skills, in the initial test the average problem-solving ability was 42.19%. In the first cycle, the test results showed an increase of 57.81%. From the results of the second cycle test also increased to 88.50%. The test results showed an increase in students' problem-solving abilities. Thus, it can be concluded that the application of the Geogebra media-assisted PBL model can improve students' problem-solving abilities.

This study aims to describe students' mathematical problem solving skills in solving word problems.  The population in this study were all fourth grade students at SD 4 Dersalam with a total sample of 24 students.  The research method used is a qualitative approach with descriptive methods.  The research instrument used was in the form of test questions (essays) and interview for mathematical problem-solving abilities in diagrammatic material.  The data collection technique in this study has three stages of procedure namely;  1) preparation stage, 2) implementation stage, 3) final stage.  Based on the results of the tests that have been given, the ability to solve mathematical problems in the good category is 14 students (58.3%), the medium category is 4 students (16.6%) and the low category is 6 students (25%).  Based on the categories of mathematical problem solving abilities, namely good, sufficient and insufficient, it can be described as follows: 1. Students' Mathematical Problem Solving Ability in the Good Category 2. Students' Mathematical Problem Solving Ability in the Enough Category 3. Students' Mathematical Problem Solving Ability in the Poor Category.

This research was conducted with the aim of producing digital learning media using the Smart Apps Creator through a Realistic Mathematics Education approach that is valid, effective, and able to improve students' mathematical problem solving abilities in the matter of a system of two-variable linear equations. This type of research is Research and Development (R&D) with the ADDIE model. From the research results, it was obtained that the media and material validity values were 93.6% and 93% with very valid categories. The practicality of the media through the results of the teacher's response questionnaire obtained a practicality value of 97.3% in the very practical category and the results of the student response questionnaire for the small group test and large group test obtained values of 90.9% and 91.4% in the very practical category. Then the value of effectiveness is seen through the mastery of classical learning and the results of the student response questionnaire obtained percentages of 87.5% and 94.05% with very effective categories. Improving problem solving abilities in students, the results obtained are that the level of students' problem solving abilities is at a percentage of 92% with a very high category, while based on the N-Gain test the average value obtained by students is 0.6473 which means there is an increase in problem solving abilities in students medium category. So based on the results obtained it can be concluded that the learning media developed in this study are valid, practical, effective, and able to improve students' mathematical problem solving abilities.

Cost of goods manufactured (COGM) is an important component of making a product, because knowing the COGM of a product can be used as a reference to determine the profit margin of a product. Without knowing the COGM of a product, we will be confused in determining the selling price. The COGM calculation is very influential for the sale of a product whether the product is experiencing a profit or loss. This study aims to determine the COGM calculations that have been carried out by MSMEs are in accordance with COGM accounting calculations or are still only limited to manual calculations. In addition, the main objective of this study is to design an accounting system for determining COGM in the Tempe Chips Industry in determining the cost of production and to apply a variable costing method to determine the cost of goods manufactured in SMEs so that the correct cost of production can be presented. The results of this study indicate that based on Cost of goods manufactured calculations carried out by MSME actors it is still very low so it is necessary to revamp the HPP calculations in accordance with accounting standards. Based on the evaluation of the old system, the author wishes to offer a new system, namely the Information System for Determining the Cost of Production of Tempe Chips SMEs which is expected to be an alternative in solving problems that are being faced by business owners. This new system makes it easy for users related to the process of recording data into the database, so that related parties can easily operate.  

The implementation of a realistic mathematical approach to learning the material of Pythagoras's theorem is carried out to encourage students to understand the material through everyday life so that the problems in the classroom gradually end in the secondary school. A realistic mathematical approach is an approach to learning mathematics that involves students to be more active by discussing in solving a problem or issue by connecting to daily life. The subjects in this study were 32 students of class VIII-3 SMP Negeri 2 Medan. This research is a Class Action Research (PTK) consisting of 2 cycles, with each cycle consisting from 2 meetings. after learning on cycle II by performing improvements from cycle I. Improvement is the planning of the student activity sheet that emphasizes the solution of issues with steps or indicators of problem-solving ability, because there are still many students who are not accustomed to the steps to solve problems. As for other improvements, namely planning activities in real life, in the 2nd cycle students solve the real problems of everyday life that students do. The researchers also provide motivation and reinforcement in learning to students to be active in group discussions and presentation of group work results to other groups, so that the interest of students in learning mathematics increases.  

Laptops are very necessary for students in lectures. However, choosing a laptop for student needs is not easy. A way to help college students decide which laptop is right for their needs is to use a decision support system. The process used by DSS is the Analytical Hierarchy Process or AHP. shows that the Asus Vivobook Ultra 15 laptop is the first priority for students with a total score of 0.1243, the HP 250 G8 laptop is the second priority with a total score of 0.0951, and the Lenovo V14 G2 laptop is the last priority with a total score of 0.0823 for students. Based on the review and assessment of the previous chapter, the following conclusions can be drawn:1. Making DSS for laptop selection can be pursued with an analytical Hiarakiya process that ensures the criteria and weights are calculated systematically. 2. The process of analytic hierarchy, which is a decision support procedure for solving various multi-criteria decision problems, can also be used to solve the laptop selection problem.