Judul: Pengelolaan Sumberdaya Pulau Lingayan Untuk Pengembangan Budidaya Rumput Laut dan Ikan Kerapu
Abstrak: This research was done in Lingayan island. The aims of this research are; (1) to identify the environmental resources potencies for enhance seaweeds culture and grouper culture; (2) To analyse economic visibility effort in enhancing seaweeds and grouper in Lingayan island; and (3) develop seaweed culture and groupers culture strategy in Lingayan Island. The research used Geografis Information System Analysis, Visibility study, SWOT analysis and QSPM. The potencies of environment resources in Lingayan Island for seaweeds culture was 786,5 ha and to grouper culture was 119,2 ha. For seaweed culture, with capacity per unit is about 9.166 units, and groupers culture is about 4.985 units. Cashflow of activities of seaweed cultures analysed by R/C 2.13 and groupers cultures by R/C: 1.23; NPV: Rp.9.870.509; Net B/C: 1.07 dan IRR: 22.81%. The primary strategies of management are: (1) to facilitate a seeds supply to support seaweeds culture and groupers cultures development, (2) to facilitate the local community achievement of enhancing marine culture activity as a primary livelihood sustainable activity, (3) to facilitate local community in a fishers group and include training programs, (4) to facilitate capital adequacy effort for marine culture, (5) community empowerment and to enhancing economy of community at Lingayan island with encreasing of productivity and quality marine culture product, (6) to facilitate opening of broader market of which can be accessed by local community, (7) Build spatial planning for marine culture zone in Lingayan island.
Keyword: 

Judul: Development of ecotourism in Island Lingayan of Outer Islands
Abstrak: Lingayan island is located in the outer islands of Tolitoli in Central Sulawesi Province (PP RI No. 78 of 2005) which has the basic points of geographic coordinates that connects the islands of the sea baselines in accordance with international and national law, thus determining the boundary line of the islands of the Unitary Republic of Indonesia (NKRI). Therefore, to maintain the boundaries of the islands Homeland sustainable management needs to be done on the island of Lingayan. This study aims: (1) Assess the potential and conditions of the island Lingayan resources. (2) Review the management plan Lingayan by the beauty of the island, land suitability, carrying capacity for tourism development on the island of Lingayan. (3) formulate a form of resource management strategies on the island of Lingayan to increased prosperity and sustainable communities. The results of the research indicate that (1) Island Lingayan has the potential of natural resources both in terms of coral reefs in the category with an average of 34.72% the percentage of coral cover, which at station 6 has the highest percentage of coral cover was 75.1% with 9 types of lifeform that is ACB, ACE, ACT, CB, CF, CM, CMR, CS and CHL, reef fish that reach 64 species, there are also birds that are maleo rare bird and turtle shell that can all be used as an icon for ecotourism development on the island of Lingayan. (2) Scenic Beauty Estimation results of the analysis indicate that the respondents' interest in coral seascape by 52%, for the types of fish by 58% while for the coastal landscape, the respondent's interest as much as 75%. (3) The strategy for development of ecotourism on the island does management tailored to the designation of the development of 56.02 ha diving, snorkeling and beach resort of 121.67 ha ha 13:18 and to ensure the sustainability of tourism development is the number of visitors should be limited to the arrival of as many as 86 people per day.
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