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Sari, Citra Arum
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Agriculture, Biological Sciences & Forestry Computer Science & IT Electrical & Electronics Engineering Engineering Physics

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Pemetaan Habitat Bentik Pulau Salarangan Menggunakan Metode Object-Based Image Analysis Sari, Citra Arum; Syah, Achmad Fachruddin
Rekayasa Vol 14, No 1: April 2021
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v14i1.7996

Abstract

Salarangan Island has supporting ecosystems that are seagrass and coral reefs with a high increase in biological competence. Basic information about the distribution map of benthic habitats on Salarangan Island is not yet available so that technology is needed that can provide information spatially and temporally. Citra Sentinel-2A with Lyzenga transformation in mapping benthic and shallow habitats and studying the distribution of benthic habitats on Salarangan Island, Madura. The image data used is obtained free of charge from the website earthexplorer.usgs.gov and in situ data are used for image data validation. The multiscale / OBIA classification method with the SVM algorithm is used to classify objects in the navigation column. The classification results show as many as 4 benthic habitat classes with object / OBIA classification resulting in overall certification of 69.86%. Based on the classification results, the most contrasting class is the seagrass class (48.76 ha) because it has the most extensive area than the coral class (27.31%), sand (8.94 ha) and seagrass + sand (31.85 ha).
Analisis Structural Equation Modeling (SEM) Pengaruh Transformational Leadership Terhadap Employee Performance Sari, Citra Arum; Nugroho, Sukmo Hadi
Rekayasa Vol 17, No 2: Agustus, 2024
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v17i2.27158

Abstract

Performance results in a company can increase due to the influence of the transformational leadership style supported by how job satisfaction and behavior of its employees. Job satisfaction and OCB function to have a positive impact on employee performance, if employees are satisfied with what is given by their leaders, it will affect the progress of the company and feel encouraged to work better as well as the impact of OCB and transformational leadership on them, in terms of involving employees in voluntary work which ultimately improves performance. Contributions to this research so that in the future it can expand information and new references. This research also expands the literature by examining the mediating influence of OCB and provides new directions for researchers to study transformational leadership and OCB. The sampling method is purposive. The data collection technique begins with the distribution of an initial questionnaire (pre test) to 30 respondents, then continues with a sample of 150 respondents. The research was conducted quantitatively with the SEM (Structural Equation Model) Lisrel method. The results showed that transformational leadership has a positive effect on job satisfaction, organizational citizenship behavior and employee performance directly and job satisfaction and OCB have a positive effect indirectly.
Co-Authors Nugroho, Sukmo Hadi