Judul: Feasibility for Water and Soil Quality for Cultivation in the Expansion Segment at Tegal Village, Kemang District, Bogor Regency
Abstrak: Desa Tegal, Kecamatan Kemang, Kabupaten Bogor merupakan suatu wilayah atau lokasi yang memiliki luas 4 hektar, luas tersebut sudah dan akan dijadikan untuk kolam budidaya segmentasi pembesaran. Tujuan penelitian ini adalah menganalisis kelayakan kualitas air dan tanah di Desa Tegal, Kecamatan Kemang, Kabupaten Bogor sebagai lokasi kegiatan perikanan budidaya segmentasi pembesaran. Pengambilan serta pengukuran sampel air dilakukan secara langsung (in situ) dan juga tidak langsung (ex situ) pada titik uji lokasi sejumlah 3 titik. Selain itu dilakukan juga pengambil serta pengukuran sampel tanah, pemetaan menggunakan GPS. Kualitas air yang berada pada titik uji lokasi memiliki hasil dominan pada kategori S2 (Sesuai), hasil tersebut dapat diartikan lokasi tersebut layak untuk dijadikan lokasi budidaya perairan. Kualitas tanah pada lokasi tersebut masuk ke dalam kategori tidak sesuai (N), maka perlu dilakukannya perlakuan agar kualitas tanah menjadi baik untuk budidaya perairan., Tegal Village, Kemang District, Bogor Regency is an area or location with an area of 4 hectares, which has been and will be used for the cultivation of enlargement segment ponds. The aim of this research is to analyze the feasibility of water and soil quality in Tegal Village, Kemang District, Bogor Regency as a location for the segmental enlargement aquaculture activities. Water samples were taken and measured directly (in situ) and indirectly (ex situ) at three sampling points in the location. Additionally, soil samples were also collected and measured, GPS mapping was conducted, and surveys or interviews were carried out with the cultivators. The water quality at the sampling point in the location has predominantly resulted in the S2 category (Suitable), indicating that the location is suitable for aquaculture activities The quality of the soil at this location falls into the unsuitable category (N), so treatment needs to be carried out so that the soil quality becomes good for aquaculture.
Keyword: land suitability, water quality, fish

Judul: Perencanaan pengembangan perikanan budidaya air tawar di Kabupaten Bogor Provinsi Jawa Barat
Abstrak: Bogor regency as a buffer zone of Jakarta has long been known as one of the central production of freshwater aquaculture in West Java Province. Beside for self-sufficient, Bogor regency also required to meet the needs of freshwater edible fish for the city of Jakarta. Increasing of development in Bogor regency has affect land use change, such as reducing area for freshwater aquaculture. The objectives of the study were: (1) to identify the existing condition of freshwater aquaculture in Bogor regency, (2) to analyze the role of fisheries and its lingkages with other sectors, (3) to analyze potential area for development of freshwater aquaculture, (4) to explore the perception of stakeholders about the development of freshwater aquaculture, and (5) to analyze the external and internal factors for the development of freshwater aquaculture in Bogor regency, including its strategic plan development. The results have shown that aquaculture production reached 36.007,73 tons with 6.782 farmer and productivity of 5,31 tons/farmer in 2010. Fish consumption rate is 20,95 kg/capita/year with population of 4.763.209. Input-output analysis shown that the fisheries sector has high backward with low foreward power of dispersion. From the stakeholders point of view, the most influential aspect is the economical and the utilization of fishing hatchery aspects. Moreover, further analysis shows that even though the freshwater aquaculture in Bogor regency experiencing many threats, however, at the same time it also has its internal strength. Therefore, the appropriate strategic development of aquaculture in Bogor regency, recommended are: retaining potential fisheries area and preventing land use change; utilizing fish species which are tolerant to water quality; increasing the use of technology and new discovery in cheap protein feed manufacturing; and the utilization of stem and improved seeds.
Keyword: 

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