Judul: Kelayakan Usaha Budi Daya Rumput Laut Kappaphycus alvarezii dengan Metode Longline dan Strategi Pengembangannya di Perairan Karimunjawa
Abstrak: One of Jepara regency water locations that have the potential of land resources for the development of aquaculture is Karimunjawa waters. Seaweed is the most widely cultivated in the Karimunjawa waters is Kappaphycus alvarezii, because low venture capital, high market demand, low-cost production technology, production cycle is short, post-harvest handling is easy and simple as well as market share is still open. This study aims to (1) Evaluate the feasibility of seaweed cultivation; (2) Identify factors that influence internal and external business seaweed cultivation; (3) Develop appropriate strategies in business development efforts to the cultivation of seaweed. Financial feasibility analysis results show that seaweed cultivation efforts Kappaphycus alvarezii with longline method in Karimunjawa waters financially profitable and feasible. This is indicated by a positive NPV value of 30.81 million rupiah; B/C ratio (2.69), IRR (47.58%); PBP 1.61 years; BEP 13.23 million rupiah or sales of 1,474 kg of dried seaweed. With a total score value of the internal-external matrix of 2.52 and 2.83 shows an internal and external matrix of responses given by business seaweed cultivation to the environment considered average. The combination of these two values indicates that the position of the business lies in V cells or growth strategies. The most appropriate strategies for business development is the empowerment of members and business groups to increase their business (5.83), and increased cultivation of technical skills for the improvement of product quality (5.52). These three strategies can be implemented simultaneously as mutually supporting one another.
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Judul: Analisis Kelayakan Usaha Pembesaran Kepiting Soka di Balai Pengembangan Budidaya Air Payau dan Laut (BPBAPL) Karawang, Kabupaten Karawang
Abstrak: Fisheries and marine sector has a very important role in contributing to the development effort in creating a better social order. One of marine culture commodity good prospects for development in the fisheries sector are soft-shelled crabs. The objectives of this research are to analyze the feasibility of soft-shelled crabs enlargement business at Karawang Aquaculture Development Center Brackish and Marine based non-financial and financial aspects. All non-financial aspects and financia aspects is feasible to do.
Keyword: financial aspect., non-financial aspect, Soft-Shelled Crabs

Judul: Transisi Fasa Materi Hadronik ke Materi Kuark pada Inti Bintang Neutron.
Abstrak: Bintang neutron terdiri dari beberapa lapisan yang disusun oleh materi nuklir yang berbeda dengan kerapatan yang semakin tinggi ketika mendekati pusat bintang. Inti luar bintang neutron disusun oleh materi hadronik (nukleon, lepton, dan hyperon), sedangkan inti dalam bintang neutron disusun oleh kuark-kuark bebas (up, down, strange) yang saling berinteraksi. Tujuan penelitian ini adalah mempelajari bagaimana transisi dari inti luar ke inti dalam bintang neutron dengan menggunakan pendekatan RMF (Relativistic Mean Field) untuk materi hadronik dan CIDDM (Confined Isospin Density Dependent Mass) untuk materi kuark. Tekanan transisi diperoleh ketika potensial kimia barion materi hadronik dan materi kuark bernilai sama. Nilai tekanan transisi dengan parameter SU6-TM1 sekitar 87 MeV/fm3 dan diperoleh massa maksimum bintang neutron yaitu 1.92M dengan jari-jari sekitar 8.62 km. Nilai tekanan transisi dengan parameter SU6-G2 sekitar 53 MeV/fm3 dan massa maksimum bintang neutron yaitu 1.88M dengan jari-jari sekitar 8.16 km. Jenis transisi fasa adalah orde satu ditandai dengan diskontinuitas dalam kerapatan energi (adanya mixed phase). Parameter-parameter pada model nuklir yang digunakan menyebabkan perbedaan kekakuan persamaan keadaan (EOS) dari materi hadronik dan materi kuark sehingga nilai tekanan transisi dari fasa hadronik ke fasa kuark juga berbeda.
Keyword: bintang neutron, persamaan keadaan, transisi fasa