Judul: Efisiensi Teknis dan Ekonomis Alat Tangkap Garuk dan Peluang Pengembangannya di Desa Rawameneng Blanakan Subang Jawa Barat
Abstrak: Dredge gear is the most common fishing gear in Rawameneng Blanakan Village. This fishing gear have good productivity for catching coockles. Productivity of dredge gear is related to the ability of fishing gear to provide the profit for fishermen. The objectives of this research were to determine technical and economical efficiency of dredge gear and to determine the possibility to developed dredge gear in Rawameneng Village. Productivity of dredge gear was technically analiyzed and economically. The research showed that technical efficiency of dredge gear in Rawameneng village ranged from 0,22 to 6,41. In term of economical efficiency, dredge gear contributed the revenue which ranged from Rp 39.790.000 to Rp 108.468.000. Furthermore, Return of Investment of dredge gear, Revenue-Cost Ratio and Payback Period were 299%, 4,36 and 0,33, respectively.
Keyword: coockles Rawameneng Village., dredge gear, economical efficiency, Technical efficiency

Judul: Perbedaan Jarak Antar Gigi pada Alat Tangkap Garuk Terhadap Hasil Tangkapan Kerang Gelatik (Anadara pilula) di Perairan Blanakan, Subang, Jawa Barat
Abstrak: One of fishing gears for catching cookles in Blanakan waters is dredge gear. A factor affecting success of fishing operation on dredge gear is the use of appropriate tooth space. The objectives of this reasearch were to determine catch composition of dredge gear and to determine effect of difference tooth space on catch number, weight, and size distribution of cookles. The tooth space used in this reasearch was 1 cm, 2 cm and 3 cm. This research indicated that catch mostly, of dredge gear was by cookles which constituted 86.47%, followed by shrimp red greasiback (3.86%) and cookles (3.46%). Based on the ANOVA test on weight and catch number, it is indicated that there was no significant different with value of probability were 0.09 and 0.06, respectively. Then, ANOVA test on size distribution of cookles indicated that there was significant different with value of probability 0.00.
Keyword: tooth space, fishing gear, dredge gear, cookles, catch

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