Judul: Keselamatan Kerja Nelayan Bagan Perahu di Pelabuhan Perikanan Nusantara Karangantu, Serang, Banten.
Abstrak: Bagan perahu menjadi salah satu pemasok ikan tertinggi di pelabuhan Karangantu. Kelancaran pengoperasian bagan perahu sangat penting bagi nelayan dan pasokan ikan di pelabuhan. Banyak hal yang menunjang dalam hal kelancaran pengoperasian bagan perahu, salah satunya adalah kesadaran akan keselamatan kerja pada saat pengoperasiannya. Kecelakaan kerja dapat terjadi saat pengoperasian bagan perahu. Hal tersebut disebabkan oleh berbagai faktor, salah satunya adalah kelalaian manusia. Tujuan penelitian ini untuk mengidentifikasi jenis bahaya, menentukan tingkat risiko nelayan, dan memberikan gambaran teknis pengendalian untuk keselamatan kerja nelayan pada pengoperasian bagan perahu. Identifikasi keselamatan kerja menggunakan metode Hazard Identification and Risk Assesment (HIRA). Identifikasi terhadap potensi kecelakaan yang bisa terjadi pada nelayan dalam pengoperasian jaring angkat melalui penilaian risiko kualitatif yaitu, tidak signifikan, minor, sedang, major dan bencana. Analisis risiko pada potensi bahaya yang terjadi pada aktivitas nelayan bagan perahu melalu analisis penilaian risiko terdapat tiga nilai risk index yaitu, significant risk, moderate risk, dan low risk. Secara keseluruhan terdapat 29 aktivitas pada pengoperasian bagan perahu, dimana terdapat empat aktivitas yang memiliki nilai risk index significant risk dan perlu adanya tindakan pengendalian pada potensi bahaya pada aktivitas tersebut, 18 aktivitas yang memilik nilai index adalah low risk dan tujuh aktivitas yang memiliki nilai index adalah moderate risk.
Keyword: bagan perahu, HIRA, keselamatan kerja, karangantu, pelabuhan perikanan

Judul: Identifikasi Keselamatan Kerja Nelayan pada Aktivitas Payang di Palabuhanratu, Sukabumi Jawa Barat
Abstrak: The study aimed to describe the fishing activity of the boat seine also to identify the potential hazard or the working risk on the operating of the boat seine in Palabuhanratu. A case study of safety was used on one of the boat seines in Palabuhanratu. Descriptive analysis was used to describe the activities of pre-operation, operation process until post-operation process of the boat seine. Detail description included of the fishing unit and the fishing activity on the boat seine fishery. Job safety analysis (JSA) was used to examine the working method and to determine the potential hazards at every step of the boat seine activity. Based on the result, it was known that the activity of the operation of the boat seine consisted of 13 events, which was divided into 3 stages. The first was pre-operation, which were from preparation on the fishing base, transfer to the ship, sailing to the fishing ground and the gear preparation. The second was operation process, which were setting and hauling the fishing gear. The third was post-operation, which were handling the catch, sailing towards the harbor and then transferring the equipment and the catch from the ship to the dock. JSA analysis result showed that the risk arising was the category of accident which were not severe, severe and very severe. The risk caused by the lack of safety equipment, the tool operation and the skill of the boat seine fisherman. Identified potential hazards at payang activity is 92% in the minor accident class category. Potential hazards in accident class category have a percentage of 8% and the percentage of severe accident class category is 0%. The risks of potential hazards in boat seine operation are caused by the lack of safety equipment, tools and fishermen skills.
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Judul: Penentuan Nilai Eigen dan Vektor Eigen dari Matriks Tridiagonal 2-Toeplitz dengan Pendekatan Polinomial Chebyshev
Abstrak: The eigenvalues and eigenvectors of a matrix can be determined by finding its characteristic polynomials. The characteristic polynomials of a tridiagonal 2-Toeplitz matrix is shown to be closely connected to polynomials which satisfy the Chebyshev recurrence relationship. If the order of the matrix is odd, then the eigenvalues are found explicitly in terms of the Chebyshev zeros and the eigenvectors are found in terms of the polynomials satisfying the recurrence relationship. For even ordered matrices, the situation is more complicated. The problem in these cases is that although the Chebyshev recurrence formula is still applied, its initial values are not generating Chebyshev polynomials
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