Judul: Analisis Tata Niaga Usaha Pembenihan Ikan Lele Sangkuriang Pada Unit Pembenihan Rakyat Bina Tular Desa Gadog Kabupaten Bogor.
Abstrak: Sangkuriang catfish is one of aquaculture commodity which is widely cultivated in Bogor. Its production was the highest in West Jawa region. The fish has a physical characteristic of smooth body, long body, not scaly like an ordinary fish, and fused with the caudal fin. UPR Bina Tular or commonly called the People's Hatchery Units established by few farmers. At first UPR Tular is a farmer group in hatchery, but in 2007 UPR Bina Tular changed into individual businesses owned by Mr.Endang. The difference in price at the farm level and the consumer make the analysis needed to be conducted. The anlysis methods used are marketing function, marketing institution, market structure, profit and cost ratio, farmer’s share and market conduct. The results show that an efficent trading system channels are channels I and II. Efficient trading system channel is a channel that has the smallest valueof the margin’s share and the biggest value of the largest farmers.
Keyword: Efficiency, UPR BINA TULAR, Trading system

Judul: Analisis kelayakan usaha pembenihan Lele Sangkuriang di kecamatan Megamendung kabupaten Bogor
Abstrak: Sangkuriang catfish hatchery operations is one of the business carried on by Abah Nasrudin in Bogor. The decline in seed production occurs affect profits. This study was conducted to analyze the aspects that affect the feasibility and calculate how sensitive affected to increased feed costs and a decrease in the amount of seed production, so it can be anticipated immediately when this condition occurs. Aspects that influence include financial and non-financial aspects. Both financial and non-financial business is said to be viable. Influence on the decrease in the number of seed production by 36,74% greater than the increase in feed costs by 188,91% that this measure can be eligible to run. Therefore, seed production continuity must be maintained.
Keyword: Bogor Agricultural University (IPB), sensitive, non-financial aspects, financial aspects, Catfish Sangkuriang

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