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All Journal Math Didactic: Jurnal Pendidikan Matematika JPMP Jurnal Pengabdian Masyarakat dan Riset Pendidikan Port Management and Maritime Administration Journal
Dedy Kristiawan
Universitas Hang Tuah
Humanities Education Engineering Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Social Sciences Other

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Development of business mathematics learning media based on macromedia flash Ari Sriantini; Dedy Kristiawan
Math Didactic: Jurnal Pendidikan Matematika Vol 8 No 2 (2022)
Publisher : STKIP PGRI Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33654/math.v8i2.1816

Abstract

Media pembelajaran merupakan sarana penunjang pembelajaran untuk membantu merangsang pikiran, serta memudahkan menyampaikan informasi dari dosen ke mahasiswa atau sebaliknya. Dengan adanya media pembelajaran yang interaktif, dapat meningkatkan motivasi dan minat belajar mahasiswa, sehingga proses belajar mengajar dapat berjalan lebih efektif. Tujuan dari penelitian yang dilakukan adalah mengembangkan media pembelajaran matematika bisnis berbasis macromedia flash yang interaktif agar nantinya mampu meningkatkan hasil belajar mahasiswa. Media pembelajaran yang dikembangkan dibatasi pada materi fungsi linier dan penerapannya di bidang bisnis, khususnya bisnis pelayaran. Penelitian ini termasuk dalam penelitian dan pengembangan (Research and Development), yang mempergunakan model pengembangan Borg & Gall yang telah dimodifikasi. Subyek penelitian ini adalah mahasiswa semester I Program Studi Manajemen Pelabuhan, Program Diploma Pelayaran-Universitas Hang Tuah Surabaya. Media yang dikembangkan memuat tentang layer judul, petunjuk penggunaan, capaian pembelajaran, materi, latihan, evaluasi, profil pengembang. Hasil media pembelajaran yang telah dikembangkan layak untuk digunakan, serta mampu meningkatkan hasil belajar siswa. Media pembelajaran yang dikembangkan hanya pada pokok bahasan penerapan fungsi linier, khususnya dibidang bisnis pelayaran, sehingga perlu dikembangkan media pembelajaran untuk mata kuliah dan pokok bahasan yang lainnya. Perlu juga ditambahkan video dan audio, sehingga mahasiswa dapat belajar secara mandiri.
PELATIHAN TEKNIK KESELAMATAN PELAYARAN BAGI MASYARAKAT DESA KAMAL, MADURA S. Teguh Wiyono; Kuncowati; Djamaludin Malik; Mudiyanto; Supangat; Dedy Kristiawan; Maulana Alghivary
Jurnal Pengabdian Masyarakat Pesisir VOLUME 2 NOMOR 2
Publisher : Universitas Hang Tuah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jpmp.v2i2.103

Abstract

Keselamatan pelayaran di Indonesia masih merupakan masalah yang perlu diperhatikan. Berdasarkan penelitian, bahwa masalah keselamatan pelayaran di Indonesia masih tinggi. Hal yang paling memperhatinkan adalah di Indonesia banyak orang yang bekerja dengan profesi sebagai nelayan. Kegiatan ini ditujukan sebagai program pelatihan Teknik keselamatan pelayaran khususnya didaerah pesisir laut dengan target peserta adalah orang yang berprofesi sebagai nelayandi Desa Kamal, Madura. Hasil pengabdian masyarakat ini adalah berupa kegiatan pelatihan teknik keselamatan pelayaran yang memberikan hasil yang positif bagi para nelayan untuk meningkatkan keselamatan pada saat bekerja dan juga untuk mengubah kebiasaan nelayan dalam menjaga keselamatan saat bekerja.
Analisis Pengaruh Penataan Muatan terhadap Stabilitas Kapal dan Keselamatan Operasional Kapal di MV. Hanglima Freddy Nicholus Kandou; Mudiyanto Mudiyanto; Dedy Kristiawan
Port Management and Maritime Administration Journal Vol. 2 No. 2 (2026): July: Port Management and Maritime Administration Journal
Publisher : Indonesian Maritime Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65428/portman.v2i2.109

Abstract

This study was conducted based on the importance of implementing proper cargo stowage procedures to maintain ship stability and improve operational safety during voyages on board MV. Hanglima. Improper cargo stowage may alter the ship's center of gravity, thereby increasing the risk of rolling, pitching, and cargo shifting, which may endanger navigational safety. This study aims to analyze the effect of cargo stowage on ship stability and operational safety aboard MV. Hanglima. The research employed a quantitative method with an explanatory research design. The study involved 31 respondents selected using a saturated sampling technique. Data were collected through questionnaires distributed to the ship's crew and analyzed using validity tests, reliability tests, descriptive statistical analysis, classical assumption tests, and simple linear regression analysis with the assistance of SPSS software. The results indicate that cargo stowage has a positive and significant effect on ship stability, with a significance value of 0.000 and a coefficient of determination (R²) of 0.787. Furthermore, cargo stowage also has a positive and significant effect on ship operational safety, with a significance value of 0.000 and a coefficient of determination (R²) of 0.637. Therefore, the better the implementation of cargo stowage procedures, the better the ship's stability and operational safety. The findings of this study are expected to provide valuable input for shipping companies and ship crews in optimizing the implementation of cargo stowage procedures in accordance with maritime safety standards.
Analisis Dampak Cuaca Ekstrem di Samudra Hindia terhadap Kerusakan Mainmast pada Kapal MV Isa Golden Hoyrol Fatah; Mudiyanto Mudiyanto; Dedy Kristiawan
Port Management and Maritime Administration Journal Vol. 2 No. 2 (2026): July: Port Management and Maritime Administration Journal
Publisher : Indonesian Maritime Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65428/portman.v2i2.110

Abstract

This study, entitled "Analysis of the Impact of Extreme Weather in the Indian Ocean on Mainmast Damage Aboard MV ISA GOLDEN," examines the effects of extreme weather conditions on the Mainmast, which serves as a vital structural component supporting the vessel's navigation and communication systems. The study aims to analyze the impact of extreme weather on Mainmast damage and identify the most dominant factor contributing to its structural failure. A qualitative research method with a descriptive case study approach was employed. Data were collected through field observations, semi-structured interviews with the Captain, Chief Officer, Second Officer, and Boatswain, as well as document analysis, including operational records, incident reports, damage reports, the Planned Maintenance System (PMS), and technical documentation. The findings reveal that extreme weather conditions, characterized by strong winds, high waves, heavy rainfall, and continuous rolling and pitching motions, generated repetitive dynamic loads acting on the Mainmast. The most dominant factor contributing to the damage was the deterioration of structural strength caused by corrosion and material fatigue, which was further exacerbated by dynamic loading during the voyage, ultimately resulting in the structural failure of the Mainmast. This study provides empirical evidence of the relationship between extreme weather, dynamic loading, and ship structural reliability, while serving as a reference for improving inspection systems, preventive maintenance, and risk mitigation strategies to enhance maritime safety.
Analisis Efisiensi Waktu Bongkar Muat Semen pada MV. Dian Prosperity Moh. Fatrit Emboma; Mudiyanto Mudiyanto; Dedy Kristiawan
Port Management and Maritime Administration Journal Vol. 2 No. 2 (2026): July: Port Management and Maritime Administration Journal
Publisher : Indonesian Maritime Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65428/portman.v2i2.115

Abstract

This study was conducted in response to the suboptimal efficiency of cement unloading operations on board MV. Dian Prosperity, which has contributed to extended port stay and increased operational costs. The study aims to identify the factors contributing to unloading delays, analyze the efficiency of unloading operations based on actual voyage data, and formulate strategies to improve the vessel's operational efficiency. This research employed a qualitative method with a descriptive approach. Data were collected through field observations, interviews with the Master, deck officers, and crew members, as well as documentation studies involving voyage records, logbooks, Standard Operating Procedures (SOPs), and other operational documents. Data analysis was carried out through data reduction, data presentation, triangulation, interpretation, and conclusion drawing. The findings indicate that the cement unloading operations on MV. Dian Prosperity have not been performed efficiently or consistently. Of the 18 voyages analyzed, most experienced delays caused by valve leakage, pressure drop, delayed readiness of the receiving silo, as well as inadequate operational coordination and inconsistent implementation of Standard Operating Procedures. Therefore, operational efficiency can be improved through preventive maintenance of the pneumatic unloading system, stronger coordination between the vessel and port authorities, adequate availability of critical spare parts, and enhanced crew competence in handling operational disruptions, thereby enabling the unloading process to be carried out more effectively, efficiently, and sustainably.
Penguatan Budaya Keselamatan Pelayaran melalui Edukasi dan Simulasi Keselamatan bagi Nelayan Tradisional di Desa Tajungan, Kecamatan Kamal, Kabupaten Bangkalan: Pengabdian Ari Sriantini; Elva Febriana; Nyoman Ardiana; Dedy Kristiawan; Supangat
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 5 No. 1 (2026): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 5 Nomor 1 (Juli 2026 -
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v5i1.7579

Abstract

Keselamatan pelayaran masih menjadi tantangan bagi nelayan tradisional akibat rendahnya pemahaman mengenai budaya keselamatan, penggunaan alat keselamatan, serta kesiapsiagaan menghadapi kondisi darurat di laut. Permasalahan tersebut berpotensi meningkatkan risiko kecelakaan pelayaran yang dapat berdampak pada keselamatan jiwa dan keberlanjutan aktivitas penangkapan ikan. Kegiatan Pengabdian kepada Masyarakat ini bertujuan untuk meningkatkan pengetahuan dan kesadaran nelayan mengenai budaya keselamatan pelayaran melalui edukasi dan simulasi keselamatan. Metode yang digunakan meliputi penyuluhan interaktif, demonstrasi penggunaan alat keselamatan, simulasi prosedur keadaan darurat, serta evaluasi menggunakan pre-test dan post-test terhadap 35 nelayan tradisional di Desa Tajungan, Kecamatan Kamal, Kabupaten Bangkalan. Hasil evaluasi menunjukkan bahwa nilai rata-rata pengetahuan peserta meningkat dari 58,4 pada pre-test menjadi 86,9 pada post-test atau mengalami peningkatan sebesar 48,8%. Persentase peserta yang memiliki kategori pengetahuan baik meningkat dari 31,4% menjadi 88,6%, sedangkan pemahaman mengenai penggunaan alat keselamatan meningkat dari 37,1% menjadi 91,4%. Selain itu, 94,3% peserta menyatakan lebih siap menerapkan prosedur keselamatan sebelum dan selama pelayaran setelah mengikuti kegiatan. Hasil tersebut menunjukkan bahwa pendekatan edukasi yang dipadukan dengan simulasi efektif dalam meningkatkan pengetahuan, keterampilan, dan kesadaran nelayan terhadap pentingnya budaya keselamatan pelayaran. Kegiatan ini diharapkan dapat menjadi model pembinaan berkelanjutan bagi masyarakat pesisir untuk mendukung terciptanya pelayaran yang lebih aman serta mengurangi risiko kecelakaan di laut.
Co-Authors Elva Febriana Anggraeny Freddy Nicholus Kandou Hoyrol Fatah Kuncowati Malik, Djamaludin Maulana Alghivary Moh. Fatrit Emboma Mudiyanto, - Nyoman Ardiana S. Teguh Wiyono Sriantini, Ari supangat, supangat