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Biology education in high school has an important role in shaping students' science literacy and critical thinking skills. However, ecological material, particularly the topic of Ecosystem Components and their Interactions, is often considered difficult because it is abstract and not easy to observe directly. This research aims to improve student learning outcomes through the application of the Problem Based Learning (PBL) model, which emphasizes real problem-solving, collaborative discussion, and active involvement in the learning process. The research uses the design of Classroom Action Research (PTK) which was carried out in two cycles in class X of St. Rosa de Lima Catholic High School Tondano involving 10 students in the odd semester of the 2025/2026 school year. Data was collected through observation of teacher and student activities, learning outcome tests in the form of pretests and posttests, and learning documentation. The analysis was carried out descriptively, qualitatively, and quantitatively by calculating the average score, percentage of completion, and student involvement. The results of the study showed a significant increase. The percentage of teacher activity increased from 58.3% in the first cycle to 87.5% in the second cycle, while student activity increased from 45.83% to 83.33%. The average score of students also increased from 70% in cycle I to 90% in cycle II, with classical completeness reaching 90%. These findings confirm the effectiveness of PBL as a contextual Biology learning strategy, able to bridge ecological concepts with real life, and increase students' curiosity, cooperation, and critical thinking skills.

The verification and validation process for land application data at the Southwest Sumba Regency Land Office has been carried out manually, which often results in delays, data inconsistencies, and the potential for errors in decision-making. These problems impact the low efficiency of public services and the accuracy of managed data. Therefore, this study aims to develop a Decision Support Sistem (DSS) that can assist the verification and validation process for land application data sistematically, quickly, and objectively. This sistem is built using the Simple Additive Weighting (SAW) method, which functions to determine the level of eligibility of an application based on several criteria, namely completeness of documents, land status, legality of ownership, suitability of applicant data, and dispute history. The sistem design process is carried out through several stages, including needs analysis, design, implementation, testing, and evaluation. The results show that the implementation of a SAW-based DSS can increase the efficiency of the verification process by up to 65%, and increase the accuracy of validation results by up to 90% compared to manual methods. This sistem provides automatic decision recommendations, thus assisting officers in assessing the eligibility of land applications in a transparent and consistent manner. Thus, this sistem has the potential to be an effective solution to support the digitalization of public services in the land sector in Southwest Sumba Regency.

This study aims to assess the quality and impact of supporting tourism facilities at Sisingamangaraja XII International Airport in strengthening the development of Lake Toba as a Super Priority Destination. The airport holds a strategic role as the main gateway for tourists visiting the Lake Toba area, making the quality of services and the completeness of facilities crucial aspects in creating a memorable travel experience. The research employed a qualitative approach with data collected through in-depth interviews with key informants, direct field observations, and documentation. Data analysis was conducted using the (SERVQUAL) model, which evaluates five key dimensions: tangibles, reliability, responsiveness, assurance, and empathy. The findings reveal that the airport has provided several tourism-supporting facilities, including ground transportation services, food and beverage outlets, as well as souvenir and gift shops. However, the implementation of these facilities has not yet reached optimal performance. Identified challenges include the limited choice of transportation options to and from various tourist destinations, the lack of authentic Lake Toba culinary offerings at food and beverage outlets, and the insufficient promotion of local products at souvenir shops. Furthermore, the absence of essential services such as travel agencies and money changers has negatively affected convenience, particularly for international tourists who require accessible information, transactions, and travel services. These findings indicate that improving supporting facilities at Sisingamangaraja XII International Airport is an urgent necessitySuch efforts are expected to enhance the quality of airport services, increase tourist satisfaction, and ultimately reinforce Lake Toba’s position as a leading national and international tourism destination.

The background of this study is based on the importance of implementing CRM strategies in the hospitality industry, particularly in facing business competition challenges and meeting the ever-evolving needs and expectations of customers. In the context of sharia tourism, which is beginning to develop in West Sumatra, good service and long-term relationships with guests are significant added values for the sustainability of a hotel. The objective of this study was to determine how the CRM concept is implemented at Hotel Royal Denai Bukittinggi, and to what extent CRM contributes to building customer loyalty. This study uses a qualitative approach with a descriptive method. Data was collected through in-depth interviews with the Human Resource Development (HRD) department, direct observation of guest service activities, and relevant documentation studies.The research findings indicate that the implementation of CRM at Hotel Royal Denai is still not optimal. The hotel does not yet have an integrated customer data management system, and its communication strategies with guests remain conventional and lack sustainability. Additionally, certain aspects of service, such as the completeness of room facilities, the speed of response to guest complaints, and the friendly attitude of staff, still need improvement. However, the management acknowledges the importance of CRM as a key strategy for enhancing customer satisfaction and fostering long-term relationships with guests.

Procedures for Issuing Port Health Quarantine Clearance (PHQC) and Ship Health Book for the MT. Venus Ship at Kuala Tanjung Port by PT. Seroja Jaya Agensi. Every ship entering the port must be in good health, free from disease outbreaks and pests. Issuance of ship health documents is the responsibility of the Health Quarantine Agency (BKK). PT. Seroja Jaya Agensi, as the agency company, acts on behalf of the ship owner in processing ship health documents at Kuala Tanjung Port. This study aims to determine the procedures for issuing Port Health Quarantine Clearance (PHQC) and Ship Health Book for the MT. Venus Ship. The procedure begins with the ship agent submitting an application to the BKK, followed by a sanitation inspection by health officers, issuance of a Certificate of Free Practice (CoP), and recording or issuing the ship health book. These documents are the primary requirements for the ship's clearance process. The research methods used were field research and library research. The results showed that the document issuance procedure involved close coordination between the ship's agent and relevant agencies, and required careful attention to the completeness and validity of the ship's documents.

This classroom action research evaluates the effectiveness of Problem Based Learning in learning Biology on the topic of environmental change at Rosa de Lima Catholic High School Tondano, with the aim of improving the activities and learning outcomes of grade X students. The method used is two action cycles with stages of planning, implementation, observation, and reflection. The subjects are 10 students. Tools include Teaching Modules and Student Worksheets; Data was collected through observation sheets of teacher and student activities (scales 1–4) and 10-item learning outcome tests each cycle. The descriptive analysis calculates the grade average and classical completeness against the Minimum Completeness Criterion of 75. The results showed consistent improvement from cycle I to cycle II. Classical completeness increased from 66% (6 out of 9 students attended; average 76.67) to 90% (9 out of 10 students; average 81.00). The teacher's activity observation score increased from 3.75 to 3.91, while the student's activity from 3.50 to 3.60. The increase is fueled by the formulation of contextual problems, facilitation of guiding questions, individualized feedback, and more disciplined time management, which strengthens engagement, collaboration, and scientific reasoning. The findings indicate that Problem Based Learning is effective in improving Biology learning activities and outcomes on the topic of environmental change. This study adds to the empirical evidence in the context of high schools with low initial completeness and suggests further exploration of other Biology topics along with measurements of critical thinking skills and scientific attitudes for a more comprehensive picture of impact.

This study examines the mechanism of preparing loading documents for MT. Lucky Star 06 at the Ivo Mas Tunggal Private Terminal, managed by PT. Tarunacipta Kencana Dumai Branch. Loading documents are official records prepared during the liquid cargo loading process on a tanker to ensure operational smoothness, regulatory compliance, and administrative as well as legal requirements. The research methods employed were field research through direct observation during shore practice and library research to strengthen the theoretical foundation. The preparation mechanism begins with the shipping instruction (SI) from the shipper and voyage information from the shipowner, which are compiled into the bill of lading. Once received from the head office in Jakarta via email, the agent prepares a draft version to anticipate potential data changes during the loading process. Supporting documents include the shipping instruction, bill of lading, and MARPOL for pollution identification. The loading documents consist of three main components. The first is the cargo manifest, containing a complete cargo list, including vessel details, ports of loading/discharge, consignor, consignee, and cargo descriptions. The second is the mate’s receipt, serving as evidence of cargo acceptance by the vessel. The third is the statement of fact, which records all vessel activities from clearance in to clearance out based on the time sheet. Challenges identified include internet connection disruptions that hinder data input from surveyors or shippers, and errors caused by insufficient accuracy in data entry, particularly punctuation. Solutions applied involve continuous monitoring of operational emails and thorough rechecking of documents before submission to the vessel to ensure accuracy and completeness.

Prescription review is an important first step before the distribution process is carried out, where the aim of checking the prescription is to ensure that all aspects, both administrative and pharmaceutical, are appropriate. This research aims to determine the percentage of administrative completeness for electronic prescriptions and manual prescriptions, and to compare the completeness between the two for the period October to December 2023. The method used in this research is quantitative descriptive. The research results showed that the completeness of electronic prescription administration included the inclusion of the patient's name, patient's age, doctor's name, doctor's practice address, prescription date, and the room where the prescription came from for a total of 389 prescription sheets (100%). Meanwhile, the completeness of manual prescription administration includes the patient's name, doctor's name, doctor's SIP, doctor's practice address, and prescription date for a total of 337 prescription sheets (100%). Based on a comparison of the percentage of administrative completeness between electronic prescriptions and manual prescriptions in the period October – December 2023, electronic prescriptions show better completeness in terms of patient name, patient age, doctor's name, doctor's practice address, date of prescription, and room where the prescription came from (100% ), patient weight (55.78%), and doctor's SIP (87.92%). On the other hand, manual prescriptions show better completeness in terms of patient name, doctor's name, doctor's SIP, doctor's practice address, and prescription date (100%), patient's age (40.36%), patient's weight (86.35%). %), and doctor's initials (27.89%).

The development of digital technology has brought significant changes to the banking industry, particularly through the implementation of internet banking and mobile banking services that aim to support financial inclusion. In addition, corporate concern for social aspects through corporate social responsibility (CSR) spending has also become an essential factor in ensuring business sustainability and increasing public trust. This study aims to analyze the effect of internet banking, mobile banking, and CSR expenses on the financial performance of banking institutions. The research population consisted of banking companies listed on the Indonesia Stock Exchange (IDX) during the 2018–2022 period, with a total sample of 55 companies that met the data completeness criteria. The analysis method employed was multiple linear regression to determine the relationship and influence of the independent variables on financial performance as the dependent variable. The results show that internet banking has a significant positive effect on financial performance, indicating that the more optimal the use of internet banking services, the better the financial performance of banks. Similarly, CSR expenses also have a positive effect on financial performance, suggesting that effective and efficient allocation of CSR funds provides benefits not only for society but also for the long-term sustainability of the banks. On the other hand, mobile banking does not have a significant effect on financial performance, implying the need for improving service quality, enhancing technological features, and strengthening digital literacy so that mobile banking can contribute more effectively to banking performance. Therefore, the findings highlight the importance of digital innovation and integrated socio-economic strategies to strengthen the sustainability and competitiveness of the banking sector in Indonesia.

Traffic violations are one of the serious problems frequently occurring in various regions, including Binjai City. Various types of violations, such as disobeying road signs and markings, incomplete vehicle documents, and violations that threaten the safety of drivers and other road users, continue to increase despite preventive and repressive efforts carried out by the authorities. This condition indicates that handling traffic violations cannot rely solely on field enforcement but also requires the support of technology capable of analyzing data more comprehensively. This study aims to predict the level of traffic violations by applying the Naïve Bayes method through data mining techniques. The dataset used consists of traffic violation records in 2023 from the Binjai City Police Department, with the main variables including violations of traffic signs and markings, document completeness, and safety-related violations. The Naïve Bayes method was selected because of its ability to perform classification with good accuracy, simplicity, and efficiency in processing large amounts of data. The implementation of this research is realized by developing a web-based application using Visual Studio Code as the development environment and MySQL as the database system. The results of this study are expected to provide structured information regarding traffic violation patterns, support authorities in making more effective decisions, and serve as an alternative solution in the prevention and handling of traffic violations in Binjai City.

This study aims to address the low learning process and outcomes of students in mathematics in grade IV of State Elementary School 138/II Daya Murni. The type of research used is classroom action research (CAR), which is carried out in two cycles, each consisting of planning, implementation, observation, and reflection stages. The subjects in this study were 13 students, and the implementation was carried out in the second semester of the 2025 academic year. Data were collected through observation, field notes, documentation, and learning outcome tests. Based on the results of the study, the Take and Give Type Cooperative model was proven to be able to improve the learning process and outcomes of students. In the first cycle, the involvement of educators in teaching was recorded at 66.66%, while in the second cycle it increased to 73.33%. Likewise, student involvement in the learning process increased from 46.61% in the first cycle to 69.23% in the second cycle. A significant increase was also seen in the completeness of student learning outcomes. In cycle I, the learning achievement rate reached 76.92%, and in cycle II, it increased to 84.61%. The implementation of the Take and Give Cooperative Model has proven effective in improving the quality of learning, both in terms of process and outcomes. Therefore, this model can be a useful alternative for educators in increasing student engagement and learning outcomes in grade IV.  

Science education at the junior high school level demands learning strategies that encourage active student engagement as well as enhance conceptual understanding. The low learning outcomes of students in the science subject of ecosystem materials emphasizes the need for learning innovations that focus on student activities. This study aims to evaluate the effectiveness of the Problem Based Learning (PBL) learning model in improving the learning outcomes of grade VIII students of SMP Negeri 1 Tumpaan. The research was conducted in the form of Classroom Action Research with two cycles, each of which included the planning, implementation, observation, and reflection stages. The subjects of the study were 30 students of grade VIII. The research instrument is in the form of learning outcome tests given at the pre-cycle stage, post-test cycle I, and post-test cycle II. Data were analyzed using descriptive statistics and repeated measurement tests to ascertain the significance of improving learning outcomes. The results showed an increase in students' average scores from 58 in the pre-cycle to 75.33 in the first cycle, and 79.5 in the second cycle. The percentage of learning completeness also increased from 20% to 66.67% in the first cycle, and reached 80% in the second cycle. Repeated measurement analysis showed significant differences between stages with strong positive correlation values. These findings confirm that PBL is effective in improving science learning outcomes, encouraging active student involvement, and improving the equitable distribution of achievement in the classroom. This research has implications for the importance of implementing PBL as an innovative learning strategy in junior high schools to support the achievement of science literacy and 21st century skill development

This study aims to analyse the disclosure and compliance level of Sustainability Reporting based on the GRI Standards 2021 at PT. Bank Central Asia, Tbk and PT Bank Mandiri (Persero), Tbk for the 2023 period. The research employs a qualitative descriptive methodology Data collection methods unlized in this study include documentation analysis, literature review, and internet research. The data analysis techniques consist of content analysis and comparative methods. The findings indicate that both banks have disclosed sustainability information in accordance with the GRI Standards, albeit with varying degrees of completeness and detail PT Bank Mandiri (Persero), Tbk demonstrates a more comprehensive level of disclosure that is better aligned with GRI standards compared to PT. Bank Central Asia, Tbk, particularly in specific disclosures. Regarding compliance levels, PT. Bank Central Asia, Tbk achieved 100% compliance with general disclosures in its Sustainability Report, classified as "Fully Applied." while the overall compliance with specific disclosures reached 38%, categorized as "Limited Disclosure" Conversely, PT. Bank Mandiri (Persero), Tbk attained 100% compliance with general disclosures, also classified as "Fully Applied, and achieved 50% compliance with specific disclosures, categorized as "Partially Applied

Child developmental delay is a public health issue that needs to be identified early to prevent long-term impacts on children’s quality of life. In Rantau Prapat Sub-district, cases are still found among toddlers with undernutrition, incomplete immunizations, and suboptimal developmental stimulation, which may pose risks of growth and developmental delays. This study aims to apply the Naive Bayes method in identifying child developmental delays based on health data collected through medical records and questionnaires. The research method includes data collection, pre-processing (cleaning, transformation, and normalization), classification using the Naive Bayes algorithm, and model validation with the k-fold cross-validation technique. The results showed that out of 150 toddler data samples, 30.7% experienced developmental delays, with the dominant influencing factors being nutritional status and immunization completeness. The Naive Bayes algorithm achieved an accuracy rate of 87.3% with a precision of 84.1%, recall of 85.7%, and F1-score of 84.9%. These findings demonstrate that Naive Bayes can be used as a decision support system in the early identification process of child developmental delays. Therefore, the results of this study are expected to assist healthcare workers, particularly midwives, in improving the quality of early detection and delivering more targeted interventions for children in the Rantau Prapat area.

Unstable financial conditions in insurance companies can serve as an early indicator of potential bankruptcy, which may have wide-ranging impacts on policyholders, shareholders, and the overall stability of the financial sector. Therefore, early detection of bankruptcy risk is critically important. This study aims to evaluate the effectiveness of the Springate model in identifying potential bankruptcy among insurance companies listed on the Indonesia Stock Exchange during the 2022–2024 period. The Springate model was chosen due to its simplicity and its ability to provide quantitative insights into a company's financial condition. Data were collected from the annual financial statements of 16 companies selected through purposive sampling based on the completeness and consistency of their financial reporting. The model applies the S-Score calculation as the basis for classifying companies into financial distress or non-financial distress categories. The analysis revealed that six companies consistently exhibited signs of financial difficulty, with three of them identified as being in a state of financial distress for three consecutive years. Meanwhile, the other ten companies demonstrated stable and healthy financial conditions throughout the observation period. These findings indicate that the Springate model is reasonably practical as an early detection tool for bankruptcy risk, particularly in the insurance sector, which is influenced by various internal factors such as risk management, as well as external factors like economic fluctuations and government regulations. Therefore, this model can be utilized as a decision-support tool for both management and investors in making strategic financial decisions.

Background: Immunization is one of the most effective public health interventions to reduce infant morbidity and mortality from preventable diseases. However, incomplete infant immunization coverage remains a significant problem, particularly in areas with limited maternal knowledge and access to health information. The Maternal and Child Health (KIA) book serves as an educational tool designed to improve mothers’ understanding of child health services, including immunization schedules. Education using the KIA book is expected to enhance maternal awareness and support the completeness of infant immunizations.Objective: This study aimed to determine the influence of education using the KIA book on the completeness of infant immunizations. Methods: This study employed a pre-experimental design with a one-group pretest–posttest approach. Data on the completeness of infant immunizations were collected before and after the educational intervention using immunization records. The data were analyzed using the Wilcoxon signed-rank test with a significance level of p < 0.05.Results: The results showed a significant improvement in the completeness of infant immunizations after education using the KIA book. Statistical analysis revealed a Wilcoxon signed-rank test value of p = 0.000, indicating a significant influence of KIA book-based education on immunization completeness.Conclusion: Education using the KIA book has a significant positive influence on the completeness of infant immunizations. The KIA book is an effective educational medium to improve maternal knowledge and compliance with infant immunization schedules. Integrating KIA book-based education into routine maternal and child health services is recommended to enhance immunization coverage.

The high mortality and morbidity rates of infants in Indonesia remain a serious public health problem. One of the main causes of this condition is the emergence of infectious diseases that can actually be prevented through basic immunization. Diseases such as diphtheria, pertussis, tetanus, tuberculosis, poliomyelitis, measles, and hepatitis B are types of diseases that can be prevented by immunization, yet many children still have not received complete immunizations. This study was conducted to determine the relationship between maternal knowledge levels and the completeness of basic immunization status of children aged 12–24 months in RW 13 Kp. Sapan, Sumbersari Village. This study used a quantitative approach with a cross-sectional design and was conducted in August 2024. A total of 39 mothers with children aged 12–24 months became the study respondents through a total sampling technique. Data collection was carried out using a questionnaire, and the data obtained were analyzed using the Chi-square test. The results showed that the majority of mothers had a sufficient level of knowledge, namely 21 mothers (53.8%). In addition, the majority of toddlers, 28 children (71.85%), had received complete basic immunizations. The results of statistical analysis showed a significant relationship between maternal knowledge and the completeness of children's basic immunizations with a p value of 0.006 (p < 0.05). This indicates that the higher the mother's knowledge regarding the importance of immunization, the greater the likelihood of the child receiving complete basic immunizations. Therefore, it is important for mothers to continue to increase their knowledge about immunizations through various sources of information such as books, counseling, or consultations with health workers, so that efforts to prevent infectious diseases in children can be optimally achieved.

This study was conducted to examine the influence of ticket prices, facilities, and location on visitor satisfaction at Tirta Bening Swimming Pool. The approach used was quantitative with data collection through primary and secondary sources. The study population consisted of all visitors to Tirta Bening Swimming Pool. Data analysis techniques used included validity testing, reliability testing, classical assumption testing, multiple linear regression analysis, and hypothesis testing. The results of the study indicate that partially, the three variables—ticket prices, facilities, and location—influence visitor satisfaction, as indicated by the t-test results. Meanwhile, based on the F-test, all three simultaneously also have a significant influence on the level of visitor satisfaction. More specifically, the facility variable has a dominant influence on visitor satisfaction. This indicates that comfort, cleanliness, completeness of facilities, and the quality of service provided by the management significantly influence visitors' perceptions of their experience at the swimming pool. Affordable ticket prices are also a major attraction, especially for families and student groups seeking cost-effective recreational alternatives. Meanwhile, the strategic and easily accessible location is also an added value, especially for visitors from the surrounding area. The implications of these findings are the importance of regularly upgrading and maintaining facilities, as well as providing additional services such as a cafeteria, comfortable changing rooms, and responsive security personnel. Management is also advised to periodically evaluate ticket pricing to maintain competitiveness while still supporting operational and service development. Furthermore, location promotion through social media and digital platforms can also expand visitor reach. This research provides an important contribution to the development of tourism destination marketing and management strategies based on visitor needs and satisfaction.

Indonesia is a country that highly upholds the law, this is stated in the 1945 Constitution of the Republic of Indonesia. In line with these provisions, one of the important principles of a state based on law is the guarantee of equality for everyone faced with the law. The emergence of legal disputes related to land begins with objections related to claims for land rights, both regarding land status, priority and ownership, with the hope of obtaining administrative resolution in accordance with applicable provisions. The problem raised in this study is about court decision no. 148 / pdt.g / 2024 / pn in Tabanan. This study uses an empirical legal research method, namely research with field data as the main data source, such as interview results and observations. In addition, this research is also supported by normative data sourced from books and legislative studies. The purpose of this study is In general, this report aims to provide an overview of the settlement of criminal acts of court decisions in Tabanan. Based on the formulation of the problem How is the Implementation of Decision No.148/Pdt.G/2024/PN.Tab Regarding the Validity of Land Ownership Certificates, What legal remedies can be taken by legitimate heirs in the event of cancellation of the transfer of land ownership certificates. The results of the research conducted. It is known that the lack of concreteness of the Tabanan District Court's decision so that the settlement of civil cases is still ongoing, in process or ongoing, so far the parties involved are still trying to find a solution by collecting evidence and witnesses to resolve land disputes in Tabanan, the author concludes that the court has a central role in deciding cases and the author also advises all people before making land purchases and sales to check the completeness of documents, for example certificates.  

This study aims to: (1) produce e-LKPD based on problem-based learning oriented to mathematical problem-solving ability and self-confidence of high school students on the material of equations and quadratic functions and (2) describe the feasibility of PBL-based e-LKPD oriented to mathematical problem- solving ability and self-confidence of high school students on the material of equations and quadratic functions seen from the aspects of validity,  practicality, and effectiveness. This type of research is research and development using the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). The research was conducted at SMA Negeri 1 Malinau with the research subject of class X-3 students totaling 35 students. Data collection was carried out using interview techniques, observation, e-LKPD validation sheets, pretest-posttest, and questionnaires. To determine the validity, the e-LKPD assessment sheet of material and media experts was used, practicality used student and teacher response questionnaires, and effectiveness used mathematics problem solving ability test questions and student self-confidence questionnaires. Data analysis consisted of qualitative data analysis and quantitative data analysis. Qualitative data analysis was conducted by analyzing the results of interviews, observations, and comments or suggestions given to make improvements to the e-LKPD products developed. Quantitative data analysis was conducted by converting quantitative data into qualitative data in the form of certain categories, normality test using shapiro-wilk, t-test with paired samples test, and N-Gain score. The results showed: (1) PBL-based e-LKPDs oriented towards mathematical problem solving skills and self-confidence of high school students on the material of quadratic equations and functions have been produced, (2) PBL-based e-LKPDs developed meet product feasibility, namely valid with excellent categories based on material and media experts; practical with very practical categories based on teacher responses and practical based on student responses; effective on math problem solving skills with classical completeness of 77%, the t-test results obtained a significance value of 0.000 <0.05 which means that there is a difference in the average ability to solve mathematical problems before and after learning using e-LKPD, the N-Gain result is 0.65 with moderate criteria, and effective on student self-confidence with an increase in the average score of each indicator before and after learning,  the N-Gain result is 0.49 with moderate criteria, and the t-test results with a significance value of 0.000 < 0.05.