According to data from the World Health Organization, around 90% of women experience severe dysmenorrhea, and 10-15% experience mild dysmenorrhea. Research in various countries has also shown that more than 50% of women suffer from primary dysmenorrhea. This study aims to analyze the impact of health education on how adolescent girls cope with menstrual pain at MA Alhudaebiyah, Sukabumi, in 2024. The research method used is a descriptive quantitative approach with a sample of 50 female students from grades X, XI, and XII. The results show that 88% of the respondents experience primary dysmenorrhea, and most of them employ strategies that are not very effective. The Chi-Square statistical test yielded a p-value of 0.000 (? < 0.05), indicating a significant relationship between knowledge level and efforts to reduce pain. The Odds Ratio (OR) value of 215 indicates that good knowledge greatly increases the likelihood of taking more effective actions.

This research aims to analyze the Cashless Payment System where cashless payments are available, what are the benefits, challenges and obstacles, the impact it has, implementation and case studies, as well as Recommendations and Best Practices. This research uses the Libery reasech research method or literature study. The results of this research are that cashless payments make transactions very easy, there are many challenges in making these payments, the implementation in the case study is also very effective, especially for Jakarta residents, the impact can also be good or bad in educational and social sectors, and there are many recommendations for maximizing cashless payments in order to maximize online payments.

Sharia investment is increasingly gaining attention throughout the world as an investment alternative that is in accordance with Islamic principles. This article aims to analyze whether sharia investment is the best choice or a burden in the future. By examining financial aspects, regulations and their impact on the global economy, this research evaluates the potential and challenges of sharia investment in the ever-growing global market. The main focus of this article is to understand how the Islamic investment market can develop amidst increasingly dominant conventional financial market trends, as well as identifying challenges that investors and policy makers may face. The analysis results show that although sharia investment offers significant advantages in terms of compliance with moral and ethical values, there are several obstacles that must be overcome, such as product and liquidity limitations. Thus, sharia investment could be the best choice in the future if it can overcome these challenges and adapt to increasingly complex market needs.

Hydroquinone is a compound that is often used in skin whitening beauty products. According to BPOM 2007, the use of hydroquinone at levels above 2% can cause skin disorders, namely hyperpigmentation which can lead to skin cancer. This research was conducted to qualitatively analyze the hydroquinone compound found in skin whitening soap which does not have a BPOM number. The aim of this research is to determine the presence of hydroquinone compounds contained in skin whitening soap samples and to determine the differences in Rf values ??resulting from the comparison of the concentrations of the mobile phase used. Qualitative analysis was carried out by calculating the Rf value of paper chromatography using a comparison of variations in mobile phase concentration, namely 50% ethanol: chloroform (1: 1) and 90% ethanol: chloroform (1: 1). The analysis results show that the standard Rf value of hydroquinone from the eluent of 50% ethanol and chloroform is 0.46, where this Rf value is the same as the Rf value from sample number 5, namely 0.46. Meanwhile, the Rf value using 90% ethanol and chloroform eluents in sample No. 5 is 0.67, which is not the same as the standard Rf value, namely 0.56. Of the whitening soap samples, 1 sample showed a positive result containing hydroquinone.