Judul: Operational Performance Enhancement Strategy of the  Natuna Integrated Marine and Fisheries Center
Abstrak: Sentra Kelautan dan Perikanan Terpadu (SKPT) Natuna dibangun dalam bentuk Pelabuhan Perikanan di Selat Lampa yang bertujuan mengintegrasikan aktivitas pendaratan ikan, pengolahan hingga pemasaran. Namun, terjadi penurunan kunjungan kapal yang cukup signifikan pada 2019 dan aktivitas pelelangan ikan belum berjalan. Penelitian ini bertujuan mendeskripsikan jenis fasilitas dan kapasitas kepelabuhanan, menilai kinerja operasional, dan menyusun strategi peningkatan kinerja operasional. Pengumpulan data dilakukan dengan pengamatan lapang, wawancara, dan pengisian kuesioner dimana responden dipilih secara accidental sampling dan purposive sampling. Penelitian menggunakan analisis deskriptif untuk mengindentifikasi fasilitas dan kapasitas kepelabuhanan, analisis gap untuk menilai kesenjangan kinerja operasional antara kondisi existing dan kondisi standar, serta analisis SWOT untuk merumuskan strategi peningkatan kinerja operasional. Hasil penelitian menunjukkan bahwa SKPT Natuna memiliki fasilitas pokok, fungsional dan penunjang yang beroperasi dalam kondisi baik, bersih dan terawat. Terdapat gap negatif dalam kinerja operasional pada indikator produksi ikan, kunjungan kapal, dan jumlah ikan yang dipasarkan. Strategi untuk meningkatkan kinerja operasional adalah meningkatkan daya serap pasar regional dan internasional terhadap ikan dan produk hasil perikanan, membuat peraturan agar pendaratan ikan terpusat di SKPT Natuna, mengundang investor, dan mendatangkan armada penangkapan ikan dari luar Natuna., Natuna Integrated Marine and Fisheries Center (IMFC) was built as a fishing port in Selat Lampa, which aims to integrate fish landing, processing, and marketing activities. However, there was a significant decrease in ship visits in 2019 and the fish auction activity had not yet started. This study aims to describe the types of port facilities and capacities, assess operational performance, and develop strategies to increase operational performance. The data collection was carried out by field observations, interviews, and filling out questionnaires where the respondents were selected by accidental sampling and purposive sampling. The study uses descriptive analysis to identify port facilities and capacity, gap analysis to assess the operational performance gaps between existing and standard conditions, and SWOT analysis to formulate strategies to increase operational performance. The results showed that Natuna IMFC had basic, functional, dan supporting facilities that operate in good, clean, and well-maintained. There are negative gapsin indicators of fish production, ship visits, and the number of fish marketed. Strategy to improve the operational performance include increasing regional and international market absorption of fishery products, make regulations so that fish landings are centered in Natuna IMFC, attract investors, and bring in fishing vessels from outside Natuna.
Keyword: Gaps, operational performance, port facilities, strategy formulation

Judul: Strategy for Improving the Operation of the Jayanti Fish Landing Base, Cianjur Regency
Abstrak: Kegiatan operasional menjadi tolak ukur tingkat kelancaran aktivitas di suatu pelabuhan perikanan. Terdapat beberapa masalah dalam kegiatan operasional di PPI Jayanti meliputi kegiatan bongkar muat yang terkendala karena keterbatasan fasilitas, TPI yang tidak berjalan, penanganan hasil tangkapan yang belum baik, belum adanya kegiatan pengolahan hasil tangkapan, dan kegiatan pemasaran serta penyaluran perbekalan yang terkendala akses ke pelabuhan. Tujuan penelitian ini mengidentifikasi kebutuhan nelayan terhadap fasilitas, serta fakor penyebab permasalahan operasional, dan merumuskan strategi peningkatan operasional PPI Jayanti. Manfaat dari penelitian ini yaitu pemangku kebijakan terkait dapat menggunakan rumusan strategi guna meningkatkan operasional di PPI Jayanti dan menginformasikan terkait gambaran aktivitas di PPI Jayanti. Kegiatan pengambilan data menggunakan metode accidental sampling dan purposive sampling. Pengolahan data menggunakan analisis deskriptif, analisis IPA, analisis fishbone dan analisis SWOT. Hasil penelitian menggunakan analisis IPA menunjukkan bahwa nelayan merasa kebutuhannya terhadap ketersediaan fasilitas belum terpenuhi. Hasil dari identifikasi terhadap operasional di PPI Jayanti didapatkan bahwa ada beberapa faktor penyebab permasalahan disetiap kegiatan operasionalnya. Perumusan strategi peningkatan operasional di PPI Jayanti dapat difokuskan pada revitalisasi fasilitas yang berhubungan dengan kegiatan operasional terutama kegiatan pendaratan ikan, mengevaluasi serta mengedukasi nelayan tentang penanganan hasil tangkapan, membangun industri pengolahan hasil tangkapan dan memberi opsi akses ke pelabuhan perikanan., A guideline for operational activities in fishing ports is essential for activities going smoothly. Several problems of operational activities at Jayanti Fishing Landing Base included loading and unloading operations that are constrained due to limited facilities, Fish auction houses that isn’t running, catches poor handling, the unavailability of catch processing, and marketing and distribution of supplies because of lack of access to the port. The purpose of this study are to identify fishermen’s need for facilities, as well as cause of operational problems, and formulate a strategy to improve operational activities at fishing port. The benefit of the research are applicating the strategy and describing activities of fishing port for policymakers. Data were collected using accidental and purposive sampling. Data were processed using descriptive, Importance Performance Analysis, fishbone and SWOT analysis. The result concluded by Importance Performance Analysis show that fishermen felt their needs for facilities aren’t complete. For the operational activities showed several contributing factors in each problem. The strategy formulation for improving operational activities can be emphasized on related revitalizing facilities, but more focused on landing catches, evaluate and guide fishermen regarding catch handling, build fish processing industry and giving an option to access to the fishing port.
Keyword: Cianjur, Facilities, Operational, Jayanti Fishing Landing Base, Revitalization

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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