This article discusses the role of the Blue Economy in increasing the income of coastal communities in North Sumatra through the utilization of fisheries resources. With great marine potential, including fishing that reaches more than 1 million tons per year, the North Sumatra region faces several challenges such as, low quality of human resources and limited access to technology. The Blue Economy offers a sustainable approach to managing marine resources, which not only promotes economic growth and community welfare, but also maintains the health of marine ecosystems. Through a qualitative method, we selected sources of articles found in databases in journals spread across various indexes and other sources. The research process began with literature mapping related to the role of the Blue Economy in increasing the income of coastal communities through optimizing fisheries resources, published in the last five years (2020-2024). Furthermore, group discussions were held to deepen the content analysis of the selected literature. The main objective of this research was to provide comprehensive information from the literature related to Blue Economy studies in economics and development. It was found that overall, the Blue Economy in North Sumatra has a significant positive impact on coastal communities. By managing fisheries resources and the environment more sustainably, opening up new opportunities through tourism, and improving the quality of fisheries products, the Blue Economy creates more equitable welfare, preserves nature, and supports the income of coastal communities in the long term.

Maintenance is one of the important aspects of married life that is regulated in Islamic law. In this context, an understanding of the maintenance of poor husbands becomes very crucial, especially in the perspective of Imam Abu Hanifah. This study aims to examine Imam Abu Hanifah's view on the obligation of maintenance for husbands who are poor and its implications for the social and economic life of the family. This research methodology uses a qualitative approach with literature analysis from various sources, including fiqh books and scientific journals. The results show that even though the husband is poor, he still has the responsibility to provide maintenance according to his ability.

Home industries such as Noga Sari, daily produce processed nuts with original and chocolate flavors. With previous research that obtained information about the composition of many units of each variant in production, as well as determining the maximum profit obtained optimally, to determine this, as a consequence of the analysis, the maximum profit of UMKM Noga Sari must be calculated. To this end, a linear program is used to calculate the maximum profit using the simplex approach through a solver. The quantitative method is applied in this research. Information gathered from talks with the UMKM Noga Sari's owner.

This study aims to determine: (1) description of adversity quotient and bravery, persistence, integrity and vitality (2) the influence of bravery, persistence, integrity and vitality on adversity quotient in high school adolescents in Tarakan City. This research is a correlation research with a quantitative approach.  The study population was public high school students in Tarakan city which amounted to 4,416. The research sample of 370 people was taken by the Slovin formula with an error rate of 5%. The sampling technique used proportionate stratified random sampling. The variables studied were Bravery (X?), Persistence (X?), Integrity (X?), Vitality (X?) and Adversity Quotient (Y). The data collection method uses an instrument in the form of a scale. Reliability test using Cronbach's alpha technique, which resulted in p=0.853 for Adversity Quotient variable and p=0.837 for bravery, persistence, integrity and vitality variable. Data analysis used descriptive analysis and multiple regression analysis with the SPSS 26 for windows program. The results showed that there is a significant relationship between Bravery, Persistence, Integrity and Vitality to Adversity Quotient (AQ) at the 5% significance level. (1). Bravery has a positive relationship with AQ (tcount = 5.695; p = 0.000). (2) Persistence has a significant effect on AQ (tcount = -27.904; p = 0.000). (3) Integrity also has a significant effect (tcount = 2.558; p = 0.011). (4) Vitality has a significant effect on AQ (tcount = 5.409; p = 0.000). Overall, bravery, persistence, integrity and vitality together affect Adversity Quotient, indicated by the Fcount value of 206.475 (greater than Ftable 2.396) with R Square 0.694. This means that these variables provide 69.4% influence on Adversity Quotient, while the remaining 30.6% is influenced by other factors.

Health is a basic right guaranteed by the Indonesian constitution, as stipulated in Article 28H of the 1945 Constitution and Article 34 paragraph (3), which states that the state is responsible for the provision of adequate health care facilities for all citizens. Nonetheless, challenges in the provision of health services in remote areas are still significant, especially related to the limitations of facilities, medical personnel, and service quality. The development of technology, particularly telemedicine, has opened up new opportunities in the delivery of health services, which can overcome geographical limitations and improve community access to medical services. The type of research in this study is normative juridical. The research results in this discussion are the protection of doctors and the regulation of telemedicine policies in Indonesia, by reviewing Law Number 17 of 2023 concerning Health regarding the implementation of telemedicine between health service facilities. Although telemedicine can expand access to health, the risks associated with remote diagnosis and treatment require special attention in terms of legal protection of health workers. Therefore, adaptive legal tools are needed to accommodate the growing development of health technology and provide legal protection for the parties involved in the implementation of online-based health services.

The distribution of ice cubes and ice blocks is a crucial aspect of business operations, particularly in tropical climates like Indonesia. Efficient distribution is directly linked to profitability. PT Prima Maesa Putra, a producer and distributor of these products, is focused on optimizing distribution costs. Transportation methods provide a valuable tool for minimizing delivery expenses from factories to their destinations. This can be achieved by, for instance, analyzing using the North-West Corner (NWC) method and Vogel's Approximation Method (VAM) to establish initial solutions. These solutions are then evaluated using the Modified Distribution Method (MODI), yielding a total Rp 14.130.000,

Learning creativity is influenced by several factors including interest, learning concentration, learning motivation, learning habits, learning style. At Kesemen Elementary School, student learning outcomes are classified as low, which is thought to be influenced by learning creativity factors and visual learning styles, as proven by observation results such as students not listening to the teacher's explanations, many students still lack enthusiasm in receiving learning, students are less able to give opinions in answering questions. given by the teacher in class, students lack creativity in developing new ideas in the learning process, lack of listening to the teacher's explanations during learning. Apart from that, students are found unable to sit still in the learning process. This type of research is correlational. The population in this study was 63 students. The sample in this study used a total sampling technique totaling 63 people. The data collection technique used was a questionnaire. Before the questionnaire was distributed to research respondents, a trial was first carried out with the aim of measuring the validity and reliability of the statements. The data analysis techniques used are descriptive data analysis, analysis prerequisite tests consisting of normality and homogeneity tests, multiple linear regression analysis tests, coefficient of determination and hypothesis testing. The tool used to test all of this is SPSS version 18.0. Based on the results of data analysis, it was found that there was a significant positive influence between learning creativity (X1) on learning outcomes (Y). For the learning creativity variable, the t-count value was 2.862 > t table of 1.670 with a significant value of 0.006 < 0.05.  Furthermore, it was also found that there was a significant influence between visual learning style (X2) on learning outcomes (Y). For the learning style variable, the tcount value was 2.254 > ttable of 1.760 with a significant value of 0.028 < = 0.05 and there was an influence of learning creativity and visual learning style on student learning outcomes together of 2.178 with a determinant result of 0.191. This means that learning creativity (X1) and visual learning style (X2) influence the learning outcome variable (Y) by 19.1%, the remaining 81.9% is influenced by other factors not included in this research. So a multiple linear regression can be formulated Y = 25,651+ 0.276X1 + 0.250X2. Apart from that, the analysis results found a TCR of 77.48%. The highest level of achievement for respondents was in the learning creativity variable with tcr, which was 80.5%. while the lowest is in the visual learning style variable with tcr which is 74.46%

This study explores the role of mathematics in economics, focusing on the application of set theory and market equilibrium models. (1) Set theory provides a framework for organizing economic data and analyzing relationships between variables, such as market segmentation and consumer behavior. Meanwhile, market equilibrium is determined by solving demand (Qd = a?bPQ_d = a - bPQd?=a?bP) and supply (Qs = c+dPQ_s = c + dPQs? = c+dP) functions, where their intersection defines the balance between supply and demand. (2) The research demonstrates how mathematical tools enhance the understanding of economic dynamics, offering precision in modeling and decision-making. The study underscores the significance of mathematics in optimizing economic analysis and contributing to effective policy formulation. This integration of theoretical mathematics and practical economics highlights its essential role in addressing real-world economic challenges.

This community service activity was held in the Darul Husna Islamic Boarding School environment in Kudus, Central Java, Indonesia. The problem found was that tax inclusion-based learning had not been implemented as a national program integrated with subjects. The solution provided was to carry out socialization to transfer knowledge about taxation to build a culture of tax awareness from an early age. The implementation method was carried out by conducting socialization. The results of the socialization activity were to provide knowledge and inspiration to students at the Darul Husna Kudus Islamic Boarding School. That providing tax knowledge from an early age to students can build awareness of the importance of taxes. This can dig deeper into the enthusiasm of students to be more aware of the importance of tax obligations. Students become more aware that their daily activities are never free from taxes. Although they have not been officially registered as taxpayers, indirectly their activities are also related to taxation.

The interest rate in the Iraqi economy represents an active and important element in the management of monetary policy in the Iraqi economy, as it is used by the monetary authority represented by the Central Bank of Iraq to influence the money supply, as well as the impact of this also by allocating the available resources for savings among foreign investments to achieve the central goal of the monetary authority of achieving stability in prices such as the interest rate and various prices and values of investments together and thus achieve balance at the economic and financial levels. This research analyzes the relationship between interest rate changes (IRC) and foreign direct investment (FDI) in the Iraqi economy during the period from (2004-2023). Multiple analytical tools were used, including descriptive statistics, correlation analysis, time series analysis, and prediction models using ARIMA and Prophet. The results showed an association between the two variables under consideration, with the ability of the ARIMA and Prophet models to provide accurate forecasts of future   FDI trends. A quantitative methodology that includes descriptive statistics, correlation analysis, time series models, and forecasting tools has been adopted to clarify the relationship between the two variables and draw conclusions that support economic decision-making.