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HENGKI TAMANDO SIHOTANG
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Jurnal Mantik
Published by Institute of Computer Science
ISSN : -     EISSN : 26854236     DOI : -
Core Subject : Economy, Science, Education,
Computer Science & IT Economics, Econometrics & Finance Languange, Linguistic, Communication & Media
Jurnal Mantik (Manajemen, Teknologi Informatika dan Komunikasi) is a scientific journal in information systems/informati containing the scientific literature on studies of pure and applied research in information systems/information technology,Comptuer Science and management science and public review of the development of theory, method and applied sciences related to the subject. Jurnal Mantik Penusa is published by Institute of Computer Science (IOCS). Editors invite researchers, practitioners, and students to write scientific developments in fields related to information systems/information technology,Comptuer Science and management science). Jurnal Mantik is issued 4 (FOUR) times a year.
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Articles 2,110 Documents
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The influence of work environment on employees' work spirit study at PT. Ultimate Metal Mandala Tita Rachtawati Santanu
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i4.4567

Abstract

The purpose of this research is to determine the influence of the work environment on the work spirit of study employees at PT. ultimate metal mandala. The research methods used are descriptive and causal associative methods. Data collection techniques in this research are questionnaires, interviews, observation and literature study. Meanwhile, the data analysis techniques used are validity and reliability tests, Correlation Coefficient Test analysis, coefficient of determination and hypothesis testing. Based on the results of research by testing the correlation between Work Environment variables and Work Morale, a Spearman Rank correlation was obtained of 0.649. The correlation coefficient is in the "Strong" interval because it is located in the interval 0.600-0.799, so it can be interpreted that the influence of the Work Environment on Work Morale at PT Mandala Logam Utama has a strong influence. Meanwhile, the magnitude of the influence exerted by the Work Environment and Work Morale can be seen from the coefficient of determination of 0.499 or 49% and the remaining 51% is influenced by other factors which were not researched. Then the results of testing the hypothesis of the influence of the Work Environment on Work Morale obtained a value > equal to 7259 > 2260 and a significant value of 0.00 < 0.10, then it can be concluded that it is rejected and accepted. This means that the work environment has a positive and significant effect on work morale.
The effect of organizational justice on the quality of work life through organizational commitment as a mediating variabel Purwanti Purwanti; Sinta Sundari Heriyanti
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i4.4570

Abstract

In this research is discussed the influence of organizational justice on organizational commitment through the quality of work life as a mediating variable among employees of PT Aristek Highpolymer. The research methodology used in this study is quantitative with a causal associative approach. Primary data was collected through questionnaires using the Likert scale. The sample consists of 75 employees selected from a population of 295 employees using the Slovin formula. The data was analyzed using validity tests, reliability tests, inner model tests, and hypothesis tests using SmartPLS 0.4. The results show that organizational justice has a positive influence on organizational commitment. However, there is no relationship between the quality of work life and organizational commitment. Employees who perceive organizational justice in their company are more motivated to work well and diligently, leading to an improvement in the quality of their work. This study emphasizes the importance of developing new ways of managing human resources, including organizational justice and organizational commitment, to make human resources a competitive advantage for the company
Comparison of financial performance and dividend policy before and after merger Purwanti Purwanti; Widiastuti Widiastuti
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i4.4571

Abstract

The study aims to analyze the impact of the merger on the financial performance and dividend policy of PT Bank Syariah Indonesia Tbk, after making the 2021 merger, compared with financial performance as well as dividend policies before making the merging. The research uses descriptive quantitative research, using secondary data obtained from the official website of the Financial Services Authority (OJK) and also the official web site of PT Bank Syariah Indonesia. The variables used in the study include Return on Assets (ROA), Return On Equity (ROE), Operational Costs to Operational Income (BOPO), Financing to Deposit Ratio (FDR), Non Performing Finance (NPF), and Dividend Payout Ratio. (DPR). The analysis method used to answer hypotheses 1 to 6 uses the normality test of the data, and the differential test uses the Paired Sample T-test. The results obtained from this study showed that during the 2 years before and 2 years after the merger ROA, ROE, BOPO, and NPF had significant differences after it made merger, but for FDR and the DPR, there was no significant difference after 2 years of merger.
K-Nearest Neighbors, decision trees and random forest for diabetes prediction Sapriadi Sapriadi
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i4.4573

Abstract

Diabetes can be treated and managed by taking medications, such as insulin injections or oral drugs, that help lower the blood sugar level. However, medications alone are not enough to control diabetes. People with diabetes also need to monitor their blood sugar level regularly, follow a balanced diet, limit the intake of sugar and carbohydrates, and avoid alcohol and tobacco. They also need to check their feet, eyes, and kidneys for any signs of damage, and seek medical attention if they notice any problems. Machine learning algorithms can help predict diabetes by learning from historical data and finding patterns that are not easily detected by human experts. They can also handle high-dimensional and noisy data, such as medical images or genomic sequences, that are relevant for diabetes diagnosis. However, machine learning algorithms also have some limitations, such as requiring a lot of data and computational resources, being prone to overfitting or underfitting, and being difficult to interpret or explain. Therefore, we conclude that random forest and decision tree are the best machine learning algorithms for predicting diabetes, and we recommend using them for future research and applications.
The effect of delivery speed a nd trust on ewom through repurchase intentions at Shopee Express in Sidoarjo Ach Jainur Reo Fajar; Muhafidhah Novie
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i4.4582

Abstract

This study aims to determine the effect of delivery speed and trust on e-wom through repurchase interest in shopee express in Sidoarjo. The research method used is quantitative with a descriptive approach. The number of samples in this study were 100 respondents, and the data were collected through the use of questionnaires. Data analysis was carried out using the path analysis methsod, while the sampling technique used was non probability sampling. The results showed that 1) Delivery Speed has a positive but insignificant influence on E-Wom. 2) Delivery Speed has a positive and significant influence on Repurchase Intention. 3)Trust has a positive and significant influence on Ewom. 4) Trust has a positive but insignificant influence on Repurchase Intention. 5) E-Wom has a positive and significant influence on Repurchase Intention
Analysis of the health of Indonesian conventional and sharia BUMN Banks for the period 2020-2022 Ganang Ikhwanudin; Zulfa Irawati
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i4.4584

Abstract

This research aims to determine the health condition of conventional and Sharia state-owned banks between 2020 and 2022. This research uses the RGEC technique approach combined with quantitative descriptive methods. The RGEC method includes four factors: risk profile, good corporate governance, income, and capital. Data is taken from the annual report released by the company. The research results show that: 1) The NPL ratio of conventional and Sharia state-owned banks has a very healthy rating. 2) LDR and FDR ratios, conventional and Sharia state-owned banks have the title of healthy and relatively healthy. 3) The Good Corporate Governance ratio of conventional and Sharia state-owned banks is healthy. 4) The ROA ratio of conventional and Sharia state-owned banks is very healthy and relatively healthy. 5) The NIM ratio of conventional and Sharia state-owned banks has the title of being very sound and healthy. 6) The CAR ratio of Conventional and Sharia BUMN Banks has a very healthy title. Overall, the RGEC method assessment of the health level of conventional and Sharia state-owned banks from 2020 to 2022 shows that conventional banks have better performance and received the Very Healthy predicate than Islamic banks, which received the Healthy predicate
Classification bootstrap resnet50 for potato diseases datasets Hasanal Fachri Satia Simbolon
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i4.4587

Abstract

Potato diseases can have negative impacts on crop production, food security, income generation, trade competitiveness, consumer health, environmental sustainability, etc. Therefore, it is important to prevent, monitor, diagnose, treat, and control potato diseases using various methods such as cultural practices (e.g., crop rotation, intercropping), biological control (e.g., beneficial insects), chemical control (e.g., fungicides), physical control (e.g., pruning), etc.Classification Bootstrap ResNet50 is a topic related to image classification using a deep learning model called ResNet50. ResNet50 is a convolutional neural network that has 50 layers and can classify images into 1000 object categories, such as animals, plants, vehicles, etc. ResNet50 is based on the concept of residual learning, which means that it uses skip connections to avoid the problem of vanishing gradients and improve the performance of the network. we used classification bootstrap and ResNet50 to analyze a dataset of potato images with different diseases. We compared the performance of ResNet50 with other models, such as Inception-v3 and Xception, and used bootstrap to evaluate the accuracy and variability of the models. We also used data augmentation and dropout techniques to optimize the models and prevent overfitting. We define some functions to run training by doing Early Stop, train_steps, val_steps, predictions. In the research I conducted, I got the highest accuracy results, reaching 100% accuracy by testing epochs with a total of 0-41 epochs.
Analysis of economic management problems and challenges in increasing investment in the upstream oil and gas industry Donna Betty
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i4.4588

Abstract

Oil and gas is a very important industry in economic circulation which can contain the course of economic stability. In the oil and gas industry sector, it will really need the role of investors to provide funds in order to carry out oil and gas exploration and exploitation in accordance with the target. In this study using phenomenological qualitative research methods based on explanations related to facts that exist during the research process. The facts obtained from the analysis of problems and challenges of investment in the oil and gas industry will be presented qualitatively in accordance with the existing facts. In qualitative methods that describe related research objects that will provide meaning related to findings in the phenomenological category. This research was supported by the acquisition of data derived from focus group discussions (FGDs) conducted by the Expertise Agency with SKK Migas and the Ministry of Energy from Mineral Resources. The result of this study is that many factors that can affect upstream oil and gas investment are influenced by internal and external factors which must be overcome as a whole.
Village fund management accountability in efforts to reduce stunting in Pantai Labu Sub-district Yusri Yusri; Chairina Chairina
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to examine the accountability of village fund management in reducing stunting. Stunting is still a common health problem in various regions, especially in rural areas. Village funds are an important source of financing for health and nutrition programs at the village level. Therefore, it is important to understand the extent to which village fund management contributes to stunting reduction efforts. This research methodology used secondary data analysis and interviews with stakeholders at the village level. The results showed that accountability in village fund management plays an important role in stunting reduction efforts. Factors such as transparency, community participation, and effective oversight have a great impact on ensuring that village funds are used efficiently for nutrition and health programs. However, the study also identified several barriers to achieving the desired level of accountability. For example, a lack of community understanding and awareness of village funds, as well as weaknesses in reporting and monitoring systems. Therefore, further efforts are needed to improve the accountability of village fund management, including community education and improved monitoring mechanisms. The results of this study provided valuable input for the government and other stakeholders in their efforts to address stunting at the village level. Accountability in village fund management can be a key factor in ensuring that available resources are used effectively and sustainably to improve child nutrition in rural areas.
Transformational leadership and organizational citizenship behavior: Moderating organizational trust Wahid Sumarjo; Dedeh Kurniasih; Wahyudi Wahyudi
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i4.4594

Abstract

Human factors are critical in society's social, economic, and political development, as well as the effectiveness and efficiency of organizations. In addition, for organizations to succeed in changing conditions, they need employees who are willing to contribute to the effectiveness and development of the organization beyond what is expected without being limited to formal job descriptions. Organizational citizenship behavior is needed to achieve this. This study examines how transformational leadership can affect organizational citizenship behavior moderated by organizational trust. The method used in this research is the PLS-SEM approach, with a total sample of 165 respondents. This study found that transformational leadership can positively and significantly affect organizational citizenship behavior, but organizational trust cannot have a significant effect

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