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This study aims to test the application of teaching styles in improving the basic underhand serve in volleyball. The method used in this research is the experimental method. The sample used in this study consists of eighth-grade students from SMP Negeri 3 Tondano for the 2024/2025 academic year, totaling 20 samples, divided into two groups: the experimental group with a teaching style training consisting of 10 samples and the control group that did not receive treatment, also consisting of 10 samples. The research was conducted over one month with a frequency of three times a week. The research design used is a "Randomized control group pre-test and post-test design." The instrument used in this research is the "basic underhand serve movement test in volleyball." The data collection technique in this study is by conducting pre-tests and post-tests of the basic underhand serve movement in volleyball for both groups. The research hypothesis is "The application of teaching styles in training has an impact on the improvement of the basic movement of the underhand serve in volleyball for eighth-grade students at SMP Negeri 3 Tondano." The data analysis technique used is the t-test statistical analysis technique. Before the t-test is conducted, it is preceded by the analysis requirement tests, namely the data normality test and the variance homogeneity test. From the hypothesis testing calculations, thitung was obtained with a value of 6.45. Based on the t distribution table at 0.05 with degrees of freedom nl + n2-21010-218, the t-table value obtained is 2.101. So thitung is greater than ttabel, namely thitung = 6.45 and trabel = 2.101. Based on the testing criteria, if thitung is greater than ttabel (thitung table), then Ho is rejected, which means HA is accepted. The results of this study show that the average improvement in the mastery of the underhand serve basic movement in volleyball for the experimental group using the training teaching style is better than the average improvement in the mastery of the underhand serve basic movement in volleyball for the control group that did not receive the treatment. The conclusion of this study is that there is an influence of the application of the training teaching style on the improvement of basic underhand serve skills in volleyball among the eighth-grade students of SMP Negeri 3 Tondano

In facing fluctuations in the demand for spare parts at PT. SUN STAR MOTOR SURABAYA to avoid shortages that could disrupt its business operations, the company must ensure it can meet customer demands for specific items or orders. This means the company will lose an opportunity to earn profits. Before applying Safety Stock, Reorder Point, Economic Order Quantity, Maximum Inventory, and Total Inventory Cost, the company frequently faced spare parts stock shortages. To solve this issue, Safety Stock, Reorder Point, Economic Order Quantity, Maximum Inventory, and Total Inventory Cost are applied to determine order quantity, order time, and inventory levels for reordering. The results from inventory calculations can help determine the optimal spare parts needs for the company.

In the modern construction industry, accuracy and efficiency in volume calculations are crucial aspects of project success. This study compares two methods for calculating the volume of pile caps and reinforcement: the manual method and the Building Information Modeling (BIM)-based method. The manual method has long been used but has limitations in terms of time efficiency and a higher risk of errors. In contrast, the BIM method offers more accurate and efficient calculations through software-based digital modeling. This study employs a descriptive-comparative quantitative approach by analyzing volume calculation data using both methods. The results indicate that the BIM method has a higher level of accuracy, with a concrete volume of 1,822.87 m³ and reinforcement of 148,862.80 kg, compared to the manual method, which produced a concrete volume of 1,842.17 m³ and reinforcement of 150,279.05 kg. The comparison of pile cap volume calculations shows that the BIM method achieves 98.95% effectiveness in concrete volume calculations and 99.06% effectiveness in reinforcement calculations compared to the manual method. Additionally, the BIM method has proven to be more efficient in reducing calculation time and minimizing input errors. Thus, BIM is more recommended for large-scale projects that require high accuracy and efficiency in construction volume calculations. However, the manual method remains relevant as a validation tool and for small projects with technological limitations. This study highlights the importance of adopting digital technology in the construction industry to enhance productivity and project planning effectiveness.    

This study aims to analyze the financial performance of PT. Adaro Energy Tbk for the period 2021-2023 using the Index Time Series method. PT. Adaro Energy Tbk is an integrated energy company that focuses on coal mining. The data analyzed comes from the company's financial statements published on the Indonesia Stock Exchange. The research method is quantitative non-statistical with a purposive sampling technique to determine the sample. Data analysis techniques include Time Series calculations by looking at the financial performance values of the Liquidity, Solvency, and Profitability Ratios. The results of the analysis show that the financial performance of PT. Adaro Energy Tbk In the period 2021-2023, the company's Current Ratio increased from 2.08% in 2021 to 2.17% in 2022, before decreasing slightly to 2.01% in 2023. Despite the decline, the company still has sufficient liquidity. Debt to Equity Ratio dropped significantly from 83.47% in 2021 to 41.33% in 2023, signaling the end of management in reducing debt. Profitability through Net Profit Margin (NPM) increased from 23.27% in 2021 to 30.75% in 2022, but decreased to 25.22% in 2023. The results of this study provide stakeholders with insight into the dynamics of the company's financial performance, as well as provide a good foundation for making financial decisions in the future.

Managing employee payroll is a crucial aspect in agency administration, including at the Kimi Nabire Community Health Center. The manual payroll system that is still used often causes problems such as calculation errors, late payments and lack of transparency. This research aims to design and develop a website-based payroll application to increase efficiency, accuracy and transparency in payroll management. This application was developed using the waterfall method with PHP and MySQL-based technology, and is designed to be accessed by administration and branch heads. The main features provided include managing employee data, automatic salary calculations, creating digital pay slips, and real-time payroll reports. Test results show that this application is able to reduce calculation errors and speed up the pay slip distribution process. With this application, it is hoped that the Kimi Nabire Community Health Center can manage payroll more efficiently and accurately, as well as becoming a reference for other agencies facing similar problems. This research contributes to the development of a website-based payroll management information system, both academically and practically.

PT Ansaf Inti Resources is a company engaged in coal mining using the open pit method. In the process of mining in open pit mines, haul roads are indispensable in the process of transporting overburden and play an important role in the mining production cycle. The purpose of the study is to determine the total resistance to overburden production of the LGMG CMT96 conveyance based on the haul road segment that has been determined from the overburden loading point to the disposal of the material, then a calculation is made based on the standard number of good total resistance to the actual haul road. After calculating all segments of the haul road, the results of plotting the total obstacle graph against the speed, travel time, and production of the haul. So every 1% increase in total resistance will reduce the speed of the conveyance 1.346 km / h, while every 1% increase in total resistance will reduce the travel time of the conveyance 0.0464 minutes. The production results of the CMT96 conveyance before the improvement of the total obstacle to the road surface amounted to 55 lcm and 49 lcm, while after the improvement of the total obstacle to the road surface there was an increase in the production of the conveyance of 68 lcm and 62 lcm. So every 1% increase in total resistance will reduce the production of conveyance by 4.7429 lcm.

The suboptimal crew change plan results in inappropriate crew changes, the crew's work contract does not comply with the Sea Work Agreement (PKL). From this, the author is interested in researching: 1) Delays in the crew change plan 2) The crew's work contract period exceeds the Sea Work Agreement (PKL) 3) Insufficient standby crew at PT MCS Internasional. This study aims to determine the influence of the crew change plan on the incompatibility of the work contract at PT MCS Internasional. The study was conducted for 3 months from February 2023 to May 2023 at PT MCS Internasional. The author uses a quantitative research method with calculation analysis in the form of simple linear regression analysis, t-test and coefficient of determination test. The data collection techniques used are by means of observation, questionnaires, and documentation studies. The respondents who were the subjects of the study were the crew of the Humpus Transportasi Kimia (HTK) tanker totaling 50 respondents. The collected data was processed using the Statistical Package For The Social Sciences (SPSS) version 27. The results of this study are: 1) Crew change plan is a process to determine the replacement/transfer of ship crews who have passed the work contract time limit. 2) The ship's crew at PT MCS Internasional experienced a mismatch in the work contract time because the contract time exceeded the Sea Work Agreement (PKL). 3) Based on a simple linear regression test, there is an influence of variable (X) on variable (Y) with a significance value of 0.000 <0.05 and the regression equation Y = 5.518 + 1.138 (X) is obtained, based on the t test, the results of t count = 8.117> t table = 2.0484 and a determination coefficient of 57% is obtained. It can be concluded that

The risk of falls in the community in Kapuk Cengkareng Village, especially the elderly, is a health problem that can have a serious impact on quality of life. Balance examination and education are important preventive measures in reducing the risk of falls. This study aims to analyze the effectiveness of balance examinations using the Single Leg Stance (SLS) and Time Up and Go (TUG) methods and provide appropriate education to improve postural stability. The method used in this study involved balance tests with SLS and TUG in community groups with various age ranges. The data obtained were analyzed to see the relationship between balance test results and fall risk factors. In addition, balance education interventions were carried out including physical exercise and fall prevention strategies. There were 30 Respondents Involved in This Activity after the Task was completed The success measurement method was used to evaluate the pre- and Post-Test methods and N-Gain with a value of 0.9 indicating that the strength or category in this study was at a High Level. The calculation results showed a 70% increase from the Pre-test and Post-test results. This shows that respondents experienced positive changes after participating in the activity and that the Technique used could significantly improve the Results. The results showed that individuals with low scores on the SLS and longer travel times on the TUG had a higher risk of falling. The balance education provided was shown to improve balance ability and public awareness of fall risk factors. Thus, balance examination using the SLS and TUG methods and balance education can be an effective strategy in preventing the risk of falling in the community.

Human Resource Management (HRM) is a very important part of an organization. In the digital era, HRM can be done more efficiently through mobile applications that allow access to employee data, HRM processes, or online attendance. However, the ability of an HRM mobile application to succeed depends on the usability factor or ease of use by users.  Talenta is one of Mekari's business platforms that provides a complete solution for all Human Resources (HR) and payroll management issues. Talenta is an application that will be used for Usability Testing using Cognitive Walkthrough. The initial stage in starting Usability Testing on the mobile-based Talenta application with the Cognitive Walkthrough method begins with conducting a literature study, learning the system or application, then making scenario questions based on the system. Then, respondents will be asked to complete the scenario questions. The scenario data collected includes; data on success in completing the scenario, data on errors in completing the scenario, and data on the time required to complete the scenario. Finally, the interview stage will be continued with the respondents on the scenarios that have been carried out. The scenario and interview data will be analyzed to calculate the effectiveness and efficiency aspects of the Talenta application. After the analysis stage, users will be given a System Usability Scale (SUS) questionnaire to be answered using Google Form using a Likert scale. The results of the questionnaire will be analyzed using SUS calculations, and then suggestions and conclusions will be given in the aspect of user learning ability. After usability testing of Talenta mobile application using Cognitive Walkthrough and SUS methods, the following results were obtained: 78% effectiveness; 0.10 seconds efficiency; and 67 learning ability level. Talenta has met the usability criteria for mobile applications in general, including effectiveness and efficiency in using the ISO 9241-11 model. However, there are still shortcomings in the user learnability level. To improve the usability of this application, it is recommended to change the layout, menu, add features, as well as clarify some display features.

This research proposes a time-based dynamic port knocking technique on Mikrotik routers to enhance SSH access security. The system uses an algorithm for port calculation that changes according to the server’s time, requiring a different knocking sequence for each access session. The technique involves three consecutive knocking stages, where each stage must be passed in order for SSH access to be granted. The results show that this method is effective as a two-factor authentication mechanism, limiting access only to clients who understand the port calculation algorithm. Moreover, this system helps prevent brute-force attacks more efficiently by changing the port every minute, making it more difficult for unauthorized parties to launch an attack. Therefore, this method offers a more dynamic, adaptive, and flexible SSH security solution that can effectively address modern cybersecurity threats.

Self-medication is the process of recognizing symptom complaints to obtaining medication and carrying out treatment independently. Diarrhea is a disease that causes feces to come out more than three times a day with a liquid consistency that can be accompanied by blood or mucus and the frequency is more frequent than normal. This research aims to determine the relationship between the level of maternal knowledge and self-medication for diarrhea in children in Sidakarya Village. The research method uses descriptive quantitative with a cross sectional study with accidental sampling technique. The number of respondents to this research was 35 people based on calculations using the Slovin formula. The research results showed that the level of self-medication knowledge for diarrhea was categorized as high at (91.4%) and self-medication for diarrhea was categorized as appropriate at (97.1%). Based on the chi-square test, the P-value was 0.001 and the calculated r value was 0.361, indicating that there was a relationship between the level of diarrhea self-medication knowledge and diarrhea self-medication actions.    

Dams are structures designed transversally across rivers and play a role in increasing water elevation. This study discusses whether the construction of dams in Krimun Village , Indramayu has met the feasibility. The results of surveys and interviews with local communities were collected as primary data, while information from various sources such as literature , government documents, and climatology data are secondary data. The researcher chose a research method through literature studies, as well as data analysis. The finalization of this study showed that the CPM method adapted as the construction method for the Kali Tuan Dam obtained a time difference of 29 days. The calculation starts from the initial planning time with the CPM time. Initially, the estimated duration of this project was 120, but it turned out to be shortened to only 91 days. On the other hand, this accelerated duration has an impact on the project calculation costs which have increased from IDR 1,476,703,244.59 to IDR 1,523,841,512.45.

Road maintenance is a strategic effort to support community mobility and economic development. This study aims to determine the optimal duration and analyze the cost impacts of implementing the Time Cost Trade Off (TCTO) method. The method is applied through critical path analysis and adding overtime hours to reduce the project duration. Data is collected from project documents such as daily reports, S-curves, and cost budget plans, then analyzed using Microsoft Project software. The results show that the project duration can be shortened to 117 days with an additional cost of IDR 176,614,724.00, which is lower than the potential delay penalty of 1% per day. This adjustment leads to a time savings of 8.6% without causing significant changes to the project's organizational structure. The TCTO method proves to be a practical solution for addressing delays while maintaining a balance between time and cost.

The problem that the researcher encountered was that the process of memorizing students still used their own methods, such as memorizing by repeating the verses to be memorized. This results in students memorizing the Qur’an but not knowing what they are memorizing, then many things happen to forget and exchange almost the same words, often missing a few words or letters in a verse, it is difficult to distinguish verses that are almost the same reading and the memorized memorization does not last long. Therefore, the researcher applies the tarjim method to overcome these problems. The tarjim method is a method of memorizing the Qur'an by emphasizing the use of translation and translation of words so as to help students quickly memorize, understand the verses that are memorized, reduce missing words and letters in the memorized verses, reduce the confusion of words or verses that are almost the same and make memorization last a long time. The purpose of this study is to determine the effectiveness of the tarjim method on the memorization of the Qur'an of MTsS DMP Diniyyah Puteri Padang Panjang students. This type of research is an experimental research with a Posttest Only Control Design, samples are selected using the Purposive Sampling technique. This study uses two sample classes, namely the control class and the experimental class. This research was carried out in the even semester of the 2023/2024 academic year, namely halaqoh class A as an experimental class and halaqoh B as a control class. To take data from the sample, a final test in the form of an oral test is used. The implementation of the tarjim method for the memorization of the Qur'an by MTsS DMP Diniyyah Puteri Padang Panjang students has gone very well. This is evident from the results of the learning implementation supervision instrument whose value is 85.68. The students' memorization results also increased after applying the tarjim method, this is evident from the average of the experimental class of 83.61. And from the results of the hypothesis test, the result of t calculation was 6,310 > t table, which is 1,692, so it can be concluded that h1 is accepted. This means that the implementation of the Tarjim method is effective in the memorization of the Qur'an of MTsS DMP Diniyyah Puteri Padang Panjang students

Delays in project implementation are caused by a lack of good control so that it affects the cost and completion time. The purpose of the study is to determine or predict how much a project will cost at the time of implementation and to determine the effectiveness of project control using the Earned Value Method. Aspects of project implementation time in weeks 2,4,5,9,11,13,16,17, 18,20,21,24 are slower than the planned schedule, this is indicated from the Schedule Variant (SV) indicator. While the performance of the project implementation time in week 3,6,7,8,10,12,14,15,19,22 is faster than the plan schedule, this is indicated by the Schedule Variant (SV) is positive. While the cost performance aspects of project implementation from week 6,9,11,13,17,19,22,23 incurred costs greater than the plan cost, this is indicated from the Cost Variant (CV) indicator is negative. Whereas in weeks 7,8,10,12,14,15,16,18,20,21, 24 incurred costs less than the plan cost, this is indicated by a positive Cost Variance (CV) indicator. The calculation results obtained from the effectiveness value of 1.603 for controlling the cost and time of the project using the Earned Value Method. In other words, the results of the effectiveness value greater than 1 (one) can be said to control the construction project of the Situbondo Regency bagor bridge very effectively using the Earned Value method.