Vitamin D deficiency is a condition that often goes unnoticed but has widespread health implications, particularly among the adult population. Through this community service activity, vitamin D levels were screened in 49 adult participants in the Danau Sunter area using serum 25(OH)D testing, accompanied by education on the importance of vitamin D, its natural sources, and strategies for preventing deficiency. The results showed variation in vitamin D levels among participants, with a mean of 59.13 ng/mL and a range of 26.6–91.8 ng/mL. A total of 3 participants (6.12%) were found to have vitamin D deficiency. Several individuals were identified as being in the deficiency category, requiring further intervention. The educational component played an important role in increasing participants’ awareness and understanding of the role of vitamin D in preventing musculoskeletal and metabolic complications. This program successfully identified individuals in the community with vitamin D deficiency and improved knowledge regarding its prevention.
 
Keywords: Early Detection, Deficiency, Vitamin D

Osha Snack UMKM faces issues related to product defects, which are suspected to arise due to a lack of quality control in the production process. This study aims to identify the causes of product defects, provide improvement suggestions, and determine effective ways to control product quality. Data were collected through interviews with relevant parties and field surveys to gather information on production volume, product defects, and production activities. The data were processed by organizing it into check sheets, performing regression calculations, and analyzing it using scatter diagrams and fishbone analysis. The Statistical Process Control (SPC) method was applied to analyze, control, and improve the production process. The results show a significant relationship between production volume and the number of defective products, with the regression equation Y = 0.0764X and a coefficient of determination R² = 0.9625. The most common type of defect is broken snacks before packaging. In addition, waste products also come from product returns by buyers, which leads to raw material waste and hinders the achievement of production targets. The analysis results suggest that the UMKM should implement quality control measures in the form of process improvements, enhancement of work skills, proper machine maintenance, implementation of SOPs, and improvement of working conditions.

This research was explanatory research with quantitative research. The variables were Brand Image (X1), Lifestyle (X2) and Purchase Decision (Y). The population in this research were the consumers who made direct purchases at Azura Coffee Malang. The Data collection was done throught observation and questionnaires to 80 respondents with the purposive sampling method. The data analysis of this research used descriptive analysis, validity test, reliability test, classical assumption test, and hypothesis test. The results of multiple linear regression analysis showed the equation Y = 4,758 + 0,261X1 + 0,547X2 + e with a coefficient of determination of 0,652. This showed that there was a significant effect of variables X1 and X2 on variable Y of 65,2%, while the remaining 34,8% was influenced by other variables not examined in this research. The results of the partial test of the Brand Image variable obtained was t count 2,146 > t table 1,66488 and Lifestyle variable was t count 5,620 > t ttable 1.66488 while the results of the simultaneous test F count was 75,119 > F table 3.12. Based on the research results, it can be concluded that Brand Image and Lifestyle variables partially or simultaneously have a positive and significant on the purchasing decisions at Azura Coffee Malang. It is suggested that Azura Coffee Malang will retain its current brand image in order that the brand image meets what the consumers want. Azura coffee is also recommended to keep café’s comfort so that it can consumer purchase decisions.

This research is motivated by the problems faced by fifth-grade students at SDN 1 Narimbang Mulia in understanding the material on forms and changes of energy in everyday life. One of the main obstacles identified is the lack of teaching aids and the unappealing nature of student worksheets, which hampers the learning process. The purpose of this study is to analyze the level of elementary students' understanding of the forms and changes of energy, as well as to identify the obstacles they face in learning the material. This research uses a qualitative approach with data collection techniques including student observations, teacher interviews, and the administration of a post-test at the end of the learning session. The research subjects are fifth-grade students of SDN 1 Narimbang Mulia. The results of the study show that most students have a fairly good understanding of the concepts of energy forms and changes. However, there are still obstacles in the learning process, including limited teaching aids and uninteresting student worksheets. This study is expected to serve as a basis for developing more effective learning strategies to improve students' understanding of the material on energy forms and changes in everyday life.

This study aims to analyze the effectiveness of  Lean Six Sigma implementation on company  performance in the manufacturing industry sector. The theory used in this study is contingency theory. Researchers examined 21 articles with a time span of 2020-2025 taken from the Scopus, PubMed and Google Scholar databases through Publish or Perish (PoP) software. The results of the study show that Lean Six Sigma with the DMAIC methodology has a significant impact on increasing operational efficiency, reducing production defects, and improving output quality in the manufacturing industry. Each stage of DMAIC uses various tools designed to identify, analyze, and resolve problems in the production process. 

Psychological assessment is an important tool in guidance and counseling practice that aims to gain an in-depth understanding of an individual's psychological state. However, its implementation can pose ethical challenges, particularly in relation to confidentiality and objectivity. This article critically examines how professionals in guidance and counseling can maintain their integrity when applying the ethical principles of their profession. It draws on theories on professional ethics and also explores the advantages and limitations of psychological assessment and its implications for counseling services. The analysis shows that maintaining professionalism depends on a high level of ethical awareness, as well as supervision and self-reflection of counselors.

This study explores how company size affects environmental costs and carbon emission transparency in Indonesia's metal and mining sector. Despite its economic importance, the industry contributes heavily to environmental harm. Analyzing secondary data from 20 listed companies, most are classified as large firms. Environmental cost reporting varies greatly, from IDR 35 million to IDR 708 billion. Five companies lack valid carbon data or fall short of OJK standards, while PT Trimegah Bangun Persada records the highest emissions. Larger companies tend to report more extensively, though not always comprehensively. The study highlights the need for stricter regulations to ensure environmental reporting transparency.

Mangroves are plants whose natural habitat is in coastal areas, they should require the role of coastal communities to manage mangroves. In Pantai Labu District, four types of mangrove plants were found that grow abundantly in the area, namely mangroves (Rhizophora), api-api (Avicennia), nipah (Nypa), and pedada (Sonneratia caseolaris). Although the types of mangroves in this area are quite diverse, unfortunately the community has not utilized them optimally. So far, the community has only taken parts of the mangrove tree trunks to be used as firewood or sold, while the fruit, especially pedada fruit, is often left alone to rot without being utilized. The method in this study uses qualitative descriptive. This study aims to describe and understand the conditions of mangrove utilization and conservation efforts by the community in Pantai Labu District in depth, based on data obtained from observations and interviews with local residents.

This study aims to determine the perspective of the Ciherang Village community on the implementation of agricultural digitalization. As the digital era develops, the use of technology in agriculture is a great opportunity to increase efficiency and production results. Through a qualitative approach, data were obtained from questionnaires with farmers and local community leaders. The results of the study showed that most people are interested in the use of agricultural digitalization, especially in terms of access to fertilizer information and marketing of crops. However, its implementation still faces obstacles such as low digital literacy, limited technological devices, and minimal digital understanding. Therefore, mentoring efforts, ongoing training, and improving digital infrastructure are needed so that agricultural digitalization can be implemented effectively and provide real benefits for farmers in Ciherang Village.

This study aims to examine the effect of Return on Assets (ROA) and Return on Equity (ROE) on stock prices of agro-industrial companies listed on the Indonesia Stock Exchange (IDX) during the post-Covid-19 economic recovery period, specifically from 2021 to 2023. The research method used is a quantitative approach with a causal associative type. The data used are secondary data from annual financial statements and year-end stock prices. Data analysis was conducted using multiple linear regression with classical assumption tests to ensure model validity. The results indicate that ROA and ROE have both simultaneous and partial effects on stock prices. ROA demonstrates a stronger influence compared to ROE, suggesting that asset management efficiency is a key determinant of stock value in agro-industrial firms during the economic recovery period.