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Background: Hand grip strength is an essential indicator of physical capacity and nutritional status that can identify obesity risk. Adipose tissue accumulation in central obesity contributes to decreased hand grip strength quality through impaired muscle force transmission. Previous studies showed inconsistent results regarding the relationship between waist circumference and hand grip strength, especially in populations with high physical activity. Objective: To analyze the relationship between waist circumference and hand grip strength in male construction workers with high physical activity in Medan City. Methods: This descriptive-analytic study with cross-sectional design involved 100 male construction workers aged 30-39 years selected using purposive sampling technique. Waist circumference was measured using measuring tape, while hand grip strength was measured using handgrip dynamometer. Data analysis used Chi-Square test with significance level α=0.05. Results: The majority of respondents had normal waist circumference (64%) with mode 70 cm and normal grip strength category (53%) with mode 41.7 kg. Chi-Square test showed significant relationship between waist circumference and hand grip strength (p=0.039). Conclusion: There is a significant relationship between waist circumference and hand grip strength in construction workers. High physical activity does not completely prevent central obesity, therefore nutritional management and health education programs are needed for optimization of body composition and muscle functional capacity.

Introduction: Maximal oxygen volume (VO2max) is the capability of the cardiorespiratory system to deliver oxygen to muscle mitochondria, which is directly proportional to the level of stamina and is obtained from physical activity. Central obesity, which is characterized by excessive accumulation of visceral fat, can cause decreased stamina, so individuals with central obesity tend to have lower VO2max values. VO2max values can be determined by body composition, such as waist circumference, which is an indicator of central obesity. Methods: This study used an observational analytical design with a cross-sectional approach and involved 54 male respondents with high physical activity jobs who worked as building construction workers in Medan City, North Sumatra Province. Waist circumference measurements were carried out using a measuring tape, while VO2max was assessed using a 6-minute walk test. Statistical analysis was performed using the Spearman correlation test with a significance level of 0.05. Results: A total of 47 respondents (87%) had a normal waist circumference, 31 respondents (57.4%) had a fair VO2max, and 16 respondents (29.6%) had an average VO2max. The analysis showed a significant relationship between waist circumference and VO2max, with a P value of 0.000 (P<0.05) and R = -0.658. Conclusion: There is a strong and significant negative correlation between waist circumference and VO2max. This indicates that a larger waist circumference results in a lower VO2max, and a smaller waist circumference results in a higher VO2max.

Background: Hyperuricemia represents a medical condition marked by elevated concentrations of uric acid within the bloodstream, potentially triggering gout alongside various metabolic disorders. Central obesity has been identified as a contributing factor to rising uric acid concentrations, measurable through waist circumference assessment. Methods: An analytic observational design utilizing a cross-sectional approach was employed in this investigation, encompassing 100 male participants characterized by sedentary lifestyles who were employed as office workers in Medan City, North Sumatra Province. Waist circumference measurements were obtained using a flexible measuring tape, while uric acid concentrations were determined through Point of Care Test (POCT) devices. Statistical evaluation was conducted via the Chi-Square test, applying a significance threshold of 0.05. Results: Among all participants, 64 individuals (64%) exhibited waist circumference measurements indicative of central obesity, whereas 56 individuals (56%) demonstrated hyperuricemic conditions. Statistical evaluation revealed a significant association between waist circumference measurements and uric acid concentrations, evidenced by a p-value of 0.000 (p < 0.05). Conclusion: A meaningful correlation exists between waist circumference and uric acid concentrations among males engaged in sedentary occupations.

Beginner students often face difficulties in academic writing, such as organizing ideas, choosing correct grammar, and expressing information in their own words. Because of this, many students use QuillBot as a writing support tool. This study aims to understand how QuillBot helps beginner writers become more independent in academic writing. The research used a mixed-method approach with 30 students from the English Language and Literature Department at the State University of Medan, with data collected through a Likert-scale questionnaire and open-ended reflections. The findings show that more than 70% of the students use QuillBot frequently in their writing tasks. Most students said that QuillBot helps improve grammar accuracy, sentence clarity, and paraphrasing skills, and also increases their confidence in writing. The summarizing feature also helps students identify and restate main ideas. However, 59% of the students noted that using QuillBot too much may reduce creativity and lead to dependency. The study concludes that QuillBot is helpful as a supporting tool for writing, but it should be used in balance. Students still need to practice writing independently so they can develop their own writing style and confidence.

Beginner students often face difficulties in academic writing, such as organizing ideas, choosing correct grammar, and expressing information in their own words. Because of this, many students use QuillBot as a writing support tool. This study aims to understand how QuillBot helps beginner writers become more independent in academic writing. The research used a mixed-method approach with 30 students from the English Language and Literature Department at the State University of Medan, with data collected through a Likert-scale questionnaire and open-ended reflections. The findings show that more than 70% of the students use QuillBot frequently in their writing tasks. Most students said that QuillBot helps improve grammar accuracy, sentence clarity, and paraphrasing skills, and also increases their confidence in writing. The summarizing feature also helps students identify and restate main ideas. However, 59% of the students noted that using QuillBot too much may reduce creativity and lead to dependency. The study concludes that QuillBot is helpful as a supporting tool for writing, but it should be used in balance. Students still need to practice writing independently so they can develop their own writing style and confidence.

The digital transformation of healthcare requires hospitals to optimally implement Electronic Medical Records (EMR) in accordance with the National Hospital Accreditation Standards (SNARS). However, challenges remain related to human resource readiness and the effective use of EMR to support KARS accreditation and service quality improvement. This community service activity aimed to provide assistance in implementing SNARS-based EMR at Mitra Sejati General Hospital, Medan. A descriptive–qualitative approach was applied through education, structured training, focused group discussions, and peer group mentoring involving healthcare professionals and supporting staff. The results demonstrated an improvement in participants’ understanding of SNARS, increased compliance of EMR implementation with KARS standards, and enhanced quality and traceability of medical record documentation. The assistance also improved hospital readiness for accreditation and contributed to quality and patient safety improvement. It can be concluded that SNARS-based EMR implementation assistance is an effective strategy to support KARS accreditation and enhance hospital service quality.

Tuberculosis (TB) is a contagious disease of the respiratory system that remains a global public health problem, including in Indonesia, with high incidence rates among adolescents due to intense social activities and interactions. This community service activity aims to increase adolescents' knowledge about TB from an epidemiological perspective, including modes of transmission, symptoms, risk factors, and prevention efforts as an airborne disease. The method used was a quasi-experimental approach with a two-group pretest-posttest design, through health education provided to 149 adolescents aged 15–17 years at Darussalam High School in Medan. Data collection was conducted using questionnaires to assess the level of knowledge before and after the educational intervention. The results of the activity showed a significant increase in the level of knowledge after the education was provided, where the percentage of respondents in the high knowledge category increased from 82% in the pre-test to 93% in the post-test, accompanied by a decrease in the sufficient and low knowledge categories. This study shows that community service activities through health education have a significant effect on increasing adolescents' knowledge about tuberculosis. Health education has been proven to be effective as a promotional and preventive measure, so it needs to be implemented continuously to prevent the transmission

The use of radiation-based medical equipment such as CT Scan poses potential risks of radiation leakage that may endanger patients, medical personnel, and the surrounding environment if not properly managed. This study aims to analyze radiation safety policies in anticipating radiation leakage in the CT Scan unit of Royal Prima General Hospital Medan, covering policy frameworks, physical protection measures, implementation challenges, and supervision and evaluation systems. This research employed a qualitative approach with a case study design. Data were collected through in-depth interviews, observations, and document reviews related to radiation safety policies. The results indicate that radiation safety policies at Royal Prima General Hospital Medan have referred to BAPETEN regulations and international standards, particularly in the structural protection of the CT Scan room, which has been proven effective in maintaining radiation exposure levels below the permissible limits. However, policy implementation still faces several obstacles, including budget limitations, non-compliance of some medical staff with the use of personal protective equipment, and suboptimal discipline in adhering to standard operating procedures. Supervision and evaluation have been conducted internally by certified Radiation Protection Officers and externally through periodic inspections by BAPETEN, yet further strengthening is required in terms of staff behavior and safety culture. In conclusion, radiation safety policies have been technically effective, but continuous improvement in compliance, supervision, and safety culture among medical personnel is essential to sustainably minimize the risk of radiation leakage.

This study aims to analyze the effect of e-commerce adoption on the sales performance of Micro, Small, and Medium Enterprises (MSMEs) in Indonesia. E- commerce adoption factors are measured through the dimensions of platform usage, technology integration, and digital marketing activities. Sales performance is assessed based on sales growth, market expansion, and increase in customer numbers. The research method uses a quantitative approach by distributing online questionnaires to 250 MSME owners in five major cities (Jakarta, Surabaya, Bandung, Medan, Makassar) who have used at least one e-commerce platform (such as Tokopedia, Shopee, Bukalapak, or a standalone website) for at least one year. Data were analyzed using multiple regression analysis techniques with the help of SPSS 25 software. The results show that e-commerce adoption has a significant positive effect on the sales performance of MSMEs. Specifically, technology integration (such as the use of inventory management and digital payment tools) and digital marketing activities (advertising and promotions on social media) are the most dominant factors. These findings provide practical implications for MSME owners and policymakers to further encourage digitalization by providing training and supporting infrastructure.

The Maternal Mortality Rate (MMR) is primarily caused by pregnancy complications that are actually preventable through early detection; however, maternal understanding of the Maternal and Child Health (MCH) Handbook remains very low. This community service aims to empower pregnant women at Sarfina Primary Clinic, Medan, by enhancing their MCH Handbook literacy. The implementation utilized a Community-Based Participatory Action (CBPA) approach conducted over four weeks, involving 30 pregnant women. The activity stages included a pre-test, interactive education, self-assessment simulations, and a post-test. Evaluation results indicated a significant surge in health literacy; pregnant women's knowledge in the "Good" category drastically increased from 13.3% to 86.7%, while the "Poor" knowledge category was successfully eliminated from 50% to 0%. In conclusion, this educational and simulation intervention proved highly effective in transforming pregnant women's behavior, making them proactive individuals in the early detection of pregnancy danger signs which is expected to reduce the risk of pregnancy complications and reduce maternal mortality rates.

Rainfall is a crucial factor in the stability of the Earth's ecosystem and has a significant impact on agriculture, forestry, energy, and water management. However, increasingly unstable climate change makes rainfall patterns difficult to predict accurately using traditional methods. The city of Medan, the capital of North Sumatra Province, has a tropical rainforest climate with an average annual rainfall of approximately ±2200 mm and an average temperature of 27°C. Significant weather fluctuations in this area can trigger flooding when rainfall increases and cause water shortages when rainfall decreases (BMKG, 2021). Therefore, a prediction approach that can manage non-linear and dynamic data is needed. Artificial Neural Networks (ANN) are one of the reliable machine learning methods for detecting data patterns. By using the backpropagation algorithm, the model can gradually reduce prediction errors, making it widely used in weather forecasting applications. In this regard, this study uses ANN with the backpropagation method to forecast monthly rainfall in Medan City by utilizing data from 2022–2024 as training and testing data.

This study aims to analyze the influence of influencers and electronic word of mouth  (e-WOM) on the purchase decision of Bika Ambon Ahun in Medan City. The rapid development of social media has transformed how consumers obtain information and make purchasing decisions, making influencers and e-WOM essential components in shaping consumer perceptions and behavior. This research employs an associative quantitative method with data collected through questionnaires distributed to consumers who were familiar with the product through social media. The data were analyzed using partial (t-test) and simultaneous (F-test) analyses to examine the strength of the relationship between the independent variables and the purchase decision. The findings indicate that influencers have a positive and significant effect on purchase decisions, as consumers perceive influencer review content to be credible, engaging, and persuasive. Likewise, e-WOM demonstrates a positive and significant influence, supported by consumer trust in online reviews, comments, and recommendations that serve as strong social proof before making a purchase. Simultaneously, both influencers and e-WOM contribute 68.4% to the variation in purchase decisions, while the remaining 31.6% is influenced by other external factors. These results emphasize that the combined influence of influencers and e-WOM generates a synergistic effect that strengthens consumer interest, trust, and confidence in purchasing local products such as Bika Ambon Ahun. The study implies the importance for businesses to optimize digital marketing strategies by collaborating with credible influencers and encouraging positive online reviews as a means to reinforce consumer purchase decisions.  

This study aims to analyze the effect of product differentiation and product innovation on the competitive advantage of the Honda Beat Street motorcycle in Medan City. The research employed a quantitative method with an associative approach, involving 97 respondents who are users of Honda Beat Street. Data were collected through questionnaires and analyzed using validity tests, reliability tests, multiple linear regression, t-tests, and F-tests. The results show that product differentiation has a positive and significant effect on competitive advantage, with durability emerging as the most dominant indicator. Product innovation also has a positive and significant effect, with product design being the highest-rated indicator. Simultaneously, both differentiation and innovation significantly influence competitive advantage, as indicated by an Adjusted R Square value of 59.1%. These findings indicate that Honda’s differentiation and innovation strategies play an important role in strengthening the competitive position of Honda Beat Street in the Medan market. The study suggests that the company should enhance stylistic elements, enrich product variations, and consistently improve innovation to maintain relevance and competitiveness.  

The availability of human resources (HR) in hospitals is a key factor in ensuring quality healthcare services. A type C general hospital in Medan faces challenges in terms of limited health personnel in several service units. The Workload Indicators of Staffing Need (WISN) method by WHO is applied to calculate staffing requirements based on actual workload. This study aimed to analyze the workload and HR needs of a type C general hospital in Medan using the WISN method. A quantitative descriptive study with a WISN approach. Data were obtained from hospital management reports including patient visits, bed occupancy rate (BOR), and staff distribution across main units. Analysis was carried out by calculating available working time, workload standards, allowance standards, and HR needs per unit. The analysis indicated shortages of personnel in several units: inpatient nurses (−20), anesthetists (−2), pharmacists (−1), laboratory analysts (−5), radiographers (−5), and medical records staff (−6). Some units had surplus staff, such as maternity (+8). The type C general hospital in Medan continues to face HR shortages in critical service units. Workload-based HR planning using the WISN method is crucial to support effective recruitment and staff redistribution.

The process of extending the International Maritime Dangerous Goods (IMDG) certificate for the Pegasus 3 Barge through SIMKAPEL at the Banten Class I KSOP Office at PT. Pasmaritim Samudera Nusantara, Cilegon Branch. The IMDG Code is intended to protect ship crews and also warn them that their vessels are carrying dangerous goods. An expired International Maritime Dangerous Goods (IMDG) certificate is a crucial step in maintaining a ship's seaworthiness, particularly for vessels transporting dangerous goods. Processing the renewal of an International Maritime Dangerous Goods (IMDG) certificate for a ship is done through the Shipping and Maritime Information System (SIMKAPEL) The Director General of Sea Transportation's system facilitates digital ship certificate renewal services. SIMKAPEL simplifies renewals and saves time and effort by requiring in-person visits to the Banten KSOP office. Service users can access application status anytime and anywhere. The method used in this research was field research namely in the form of direct observation and taking pictures based on the activities of processing ship certificate extensions through SIMKAPEL as well as library research, namely through books in the POLTEK AMI Medan library as well as online books, websites and journals related to the research object.

Work engagement is a crucial factor that supports organizational effectiveness, particularly within public institutions that bear significant responsibilities in delivering public services. This study aimed to examine the relationship between Perceived Organizational Support (POS) and Work Engagement among Civil Servants (Pegawai Negeri Sipil PNS) at the Medan Center for Drug and Food Control (Balai Besar Pengawas Obat dan Makanan BBPOM). A quantitative approach with a correlational research design was employed. The study population consisted of 127 civil servants, all of whom were included as research participants using a total sampling technique. Data were collected using the Survey of Perceived Organizational Support (SPOS) and the Utrecht Work Engagement Scale (UWES). Data analysis was conducted using the Pearson Product-Moment Correlation test. The findings revealed a positive and significant relationship between Perceived Organizational Support and Work Engagement (r = 0.266; p = 0.002). These results indicate that higher levels of perceived organizational support are associated with higher levels of employee work engagement. Descriptively, the majority of respondents reported high levels of POS (66.9%) and high levels of work engagement (73.2%). The findings suggest that organizational support manifested through fairness, concern for employee well-being, supervisory support, and recognition of employee contributions plays an important role in enhancing employees’ vigor, dedication, and involvement in their work. This study provides practical implications for BBPOM Medan to continuously strengthen organizational support as a strategic effort to improve employee work engagement and optimize the performance of civil servants.

The development of information technology has significantly improved the efficiency of application-based delivery services, including Shopee Partner Driver couriers. However, several issues such as delays in information updates, system errors, and inaccurate delivery data still affect courier performance. This study aims to analyze the effect of Information Quality and System Quality on the Performance of Shopee Partner Driver Couriers in Medan City. This research used a quantitative method with a questionnaire survey distributed to 100 active couriers. The instrument applied a fivepoint Likert scale, and data were analyzed using validity and reliability tests, descriptive statistics, and multiple linear regression analysis with SPSS software. The results indicate that both Information Quality and System Quality have a positive and significant effect on Courier Performance. The coefficient of determination (R²) of 0.625 shows that these two variables explain 62.5% of courier performance variance, while the remaining 37.5% is influenced by other factors. These findings support the DeLone and McLean (2003) model of information system success, emphasizing the importance of system and information quality in enhancing user performance.

Digital media is currently the main key to public communication to convey aspirations in government policies. Medan is also one of the major cities in Indonesia that is striving to realize the concept of a smart city through digital media. The role of digital media is very important in realizing a smart city. This study aims to analyze how digital media plays a role in uniting the views of the community and the Medan city government in the effort to realize a smart city in Medan. The method used in this study is a qualitative descriptive approach with a library research approach and observation of digital communication activities, online news, and public statements from the government to the public in Medan. In realizing a smart city, optimizing digital communication is essential to strengthen the synergy between the community and the government. The results of the study indicate that digital media plays a crucial role as a means of two-way communication, information dissemination, and as a medium for public participation. However, challenges such as weak digital literacy and limited infrastructure are obstacles to the sustainability of this effort.

Breakfast and sleep quality are important factors that can influence students’ concentration and academic achievement. This study aims to analyze the relationship between breakfast consumption levels and sleep quality with the learning achievement of students at SMP Negeri 31 Medan. This research used a quantitative method with a cross-sectional design. The study population consisted of all 192 eighth-grade students, with a sample of 88 respondents selected through simple random sampling. Breakfast intake was measured using a 3x24-hour food recall (breakfast time only), sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI) questionnaire, while learning achievement was obtained from semester exam scores in Indonesian Language and Mathematics subjects. Data analysis was carried out using the Chi-Square test with a significance level of 0.05. The results showed a significant relationship between breakfast intake and learning achievement in Indonesian Language (p=0.003) and Mathematics (p=0.000). Sleep quality was also proven to be associated with learning achievement in Indonesian Language (p=0.001) and Mathematics (p=0.000). The conclusion of this study is that having breakfast with adequate nutritional intake and maintaining good sleep quality contribute positively to improving students’ learning achievement.

This study aims to analyze the role of the digital economy in increasing the competitiveness of MSMEs in Medan City. The rapidly developing digital transformation provides opportunities for MSMEs to expand their markets, improve operational efficiency, and strengthen their competitive position. However, the use of digital technology among MSMEs in Medan remains limited due to low digital literacy, limited capital, lack of training, and minimal use of digital platforms such as e-commerce, social media, and Google My Business. This study uses a descriptive qualitative method through a literature review of research conducted in 2024–2025. The results of the analysis indicate that the digital economy plays a significant role in increasing the competitiveness of MSMEs, particularly through digital marketing, technological innovation, and optimization of digital platforms that can increase visibility and interaction with customers. Based on the Resource-Based View (RBV) approach, the competitive advantage of MSMEs is determined by the quality of internal resources, especially digital literacy, innovation capabilities, and technology management. With the support of training and government policies, the implementation of the digital economy has the potential to strengthen the growth and sustainability of MSMEs in Medan City.