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All Journal Jurnal Ilmiah Matematika dan Pendidikan Matematika (JMP) Abditeknika - Jurnal Pengabdian Kepada Masyarakat Journal of Marine Resources and Coastal Management
DIMAS EKA PUTRA
STMIK AMIKOM Yogyakarta
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Environmental Science Mathematics

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ANALISIS FAKTOR-FAKTOR YANG BERPENGARUH TERHADAP KINERJA PEGAWAI PT. KERETA API INDONESIA (PERSERO) DAOP 5 PURWOKERTO DENGAN PARTIAL LEAST SQUARE Jajang, Jajang; Supriyanto, Supriyanto; Putra, Dimas Eka
Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 12 No 2 (2020): Jurnal Ilmiah Matematika dan Pendidikan Matematika (JMP)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jmp.2020.12.2.3613

Abstract

ABSTRACT. In this research, PLS method is applied to analyze which factor are affect employee performance in PT. Kereta Api Indonesia (Persero) DAOP 5 Purwokerto based on employee performance, work motivation, leadership, training, work enviroment and corporate culture through the indicator which are then analyzed. From analysis using a PLS method with 6 variables of research, it was found that R-square value work of motivation variables of 77,00% with good assessments defined by construct variable of leadership, training, work enviroment and corporate culture while another 23% is described by other variables outside this research. The value of R-square on employee performance variables of 66,00% with good enough assessment criteria described by the work of motivation, whereas another 34% is described by other variables outside this research model.Keywords: partial least square, employee performance, PT. Kereta Api Indonesia, DAOP 5 Purwokerto. ABSTRAK. Pada penelitian ini, metode PLS diaplikasikan untuk menganalisis faktor-faktor yang mempengaruhi kinerja pegawai PT. Kereta Api Indonesia (Persero) DAOP 5 Purwokerto berdasarkan kinerja pegawai, motivasi kerja, kepemimpinan, pelatihan, lingkungan kerja dan budaya perusahaan melalui beberapa indikator yang kemudian dianalisis. Dari hasil analisis menggunakan metode PLS dengan 6 variabel penelitian, diperoleh bahwa nilai R-square untuk variabel motivasi kerja sebesar 77,00% dengan kriteria penilaian bagus yang dijelaskan oleh variabel konstruk kepemimpinan, pelatihan, lingkungan kerja, dan budaya perusahaan, sedangkan 23,00% lainnya dijelaskan oleh variabel diluar model penelitian ini. Nilai R-square untuk variabel kinerja pegawai sebesar 66,00% dengan kriteria penilaian cukup bagus yang dijelaskan oleh motivasi kerja, sedangkan 34% lainnya dijelaskan oleh variabel diluar model penelitian ini.Kata Kunci: DAOP 5 Purwokerto, kinerja pegawai, partial least square, PT. Kereta Api Indonesia.
Pemberdayaan Masyarakat Desa Rejoso Kidul Dalam Pengolahan Sampah Organik Melalui Maggot Dengan Pendekatan Participatory Action Research Faradesi, Nasya Amira; Sholichah, Rahmah Hidayatus; Putra, Dimas Eka; Alfaridzi, Moch Raindra
Abditeknika Jurnal Pengabdian Masyarakat Vol. 5 No. 2 (2025): Oktober
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/abditeknika.v5i2.9611

Abstract

Permasalahan pengelolaan sampah organik di Desa Rejoso Kidul, Kabupaten Pasuruan dimana masyarakat masih menerapkan pola konvensional berupa penumpukan dan pembakaran sampah yang mencemari lingkungan serta mengurangi potensi nilai ekonomi. Penelitian ini bertujuan menganalisis proses pemberdayaan masyarakat dalam pengolahan sampah organik melalui teknologi maggot (Black Soldier Fly) dengan pendekatan Participatory Action Research (PAR) untuk mengidentifikasi faktor-faktor yang mempengaruhi keberhasilan program dan dampaknya terhadap peningkatan kapasitas masyarakat. Metode penelitian menggunakan pendekatan PAR yang menempatkan masyarakat sebagai subjek aktif dalam proses penelitian selama 40 hari (16 Juni-25 Juli 2025) dengan subjek penelitian meliputi aparat desa, RW, pemuda desa, kelompok tani, dan ibu rumah tangga. Tahapan penelitian meliputi orientasi, perencanaan melalui FGD (Focus Group Discussion), implementasi berupa sosialisasi serta pengumpulan data melalui observasi partisipatif, wawancara mendalam, dan dokumentasi. Hasil penelitian menunjukkan bahwa teknologi maggot memiliki keunggulan signifikan dibandingkan metode konvensional karena dapat mengurangi volume sampah hingga 80-90 % dalam 10-15 hari, menghasilkan produk bernilai ekonomi berupa pakan ternak berprotein tinggi dan pupuk organik serta ramah lingkungan tanpa menghasilkan emisi gas berbahaya. Pendekatan PAR berhasil meningkatkan antusiasme dan kesadaran masyarakat terhadap pengolaan sampah, meskipun masih menghadapi tantangan keterbatasan pengetahuan teknis yang diatasi melalui strategi penguatan kapasitas dan pengembangan jejaring pemasaran.   The problem of organic waste management in Rejoso Kidul Village, Pasuruan Regency lies in the community's continued use of conventional methods such as waste piling and burning, which pollute the environment and diminish the potential economic value. This study aims to analyze the process of community empowerment in organic waste management through maggot (Black Soldier Fly) technology using a Participatory Action Research (PAR) approach, to identify factors influencing the program’s success and its impact on enhancing community capacity. The research method employs the PAR approach, positioning the community as active subjects in the research process over a 40-day period (June 16–July 25, 2025), involving village officials, neighborhood leaders (RW), village youth, farmer groups, and housewives as research participants. The research stages include orientation, planning through Focus Group Discussions (FGDs), implementation through socialization, and data collection through participatory observation, in-depth interviews, and documentation. The findings show that maggot technology offers significant advantages over conventional methods, as it can reduce waste volume by 80– 90% within 10–15 days, produce economically valuable products such as high-protein animal feed and organic fertilizer, and is environmentally friendly without emitting harmful gases. The PAR approach successfully increased community enthusiasm and awareness regarding waste management, although it still faces challenges such as limited technical knowledge, which are addressed through capacity-building strategies and the development of marketing networks.
Wave and current characteristics for navigation safety assessment at Kalbut Port, Indonesia Aisy, Aqila Rihadatul; Putra, Dimas Eka; Putra, Rahmatullah Hernanda; Fahmi, Muhammad Yunan
Journal of Marine Resources and Coastal Management Vol. 7 No. 2 (2026)
Publisher : UIN Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/mrcm.v7i2.2559

Abstract

Kalbut Port, located in Situbondo, East Java, Indonesia, is an important port serving small vessels operating routes to the Madura Islands and tankers transporting liquefied petroleum gas (LPG) and crude oil. Ensuring navigational safety and efficient loading and unloading operations under variable wave and current conditions requires a comprehensive understanding of the local hydro-oceanographic characteristics. This study quantitatively investigates the current and wave conditions at Kalbut Port using secondary data and Delft3D hydrodynamic and wave modeling. The simulations were conducted for the east and west monsoon seasons. The results indicate a mixed tidal regime with a predominance of semi-diurnal characteristics. Dominant winds originate from the southeast during the east monsoon and from the west during the west monsoon. Significant wave heights reach 0.5 m during the east monsoon and 0.7–0.8 m during the west monsoon, while current velocities remain relatively low, with maximum values below 0.3 m/s during the west monsoon. Within the port basin, wave heights decrease to approximately 0.1 m due to the sheltering effect of the breakwater and the progressively shallower bathymetry. Model performance was evaluated against observed tidal elevations and significant wave heights. Tidal validation yielded an RMSE of 0.013 and an MAE of 0.009, whereas wave validation produced an RMSE of 0.131 and an MAE of 0.105. These relatively low error values indicate that the model adequately represents the hydrodynamic and wave conditions in the study area. Overall, wave and current conditions at Kalbut Port remain below the applicable navigation safety thresholds, indicating a relatively low navigation risk for both small vessels and tankers. The findings provide a scientific basis for assessing and mitigating navigation risks and supporting safer maritime operations at Kalbut Port.
Co-Authors Aisy, Aqila Rihadatul Alfaridzi, Moch Raindra Fahmi, Muhammad Yunan Faradesi, Nasya Amira Jajang Jajang Putra, Rahmatullah Hernanda Sholichah, Rahmah Hidayatus Supriyanto Supriyanto