Judul: Perkembangan Daya Dukung Sumberdaya Ikan di Indonesia Tahun 2005-2010
Abstrak: Indonesia mempunyai potensi sumber daya ikan untuk memenuhi pangan hewani. Penelitian ini untuk mempelajari tren sumber daya perikanan di Indonesia Tahun 2005-2010. Studi deskriptif. Jenis data yang dikumpulkan dan digunakan dalam penelitian ini adalah data sekunder data, terdiri dari data total produksi ikan, produksi ikan berdasarkan ekosistem dan cara produksi, produksi ikan yang didaratkan di pelabuhan, impor dan ekspor, jumlah dan laju pertumbuhan penduduk, penggunaan ikan, dan ketersediaan ikan pada tahun 2005-2010. Hasil ini menunjukkan bahwa laju pertumbuhan produksi ikan rata-rata sebesar 9%. Total produksi ikan dipengaruhi oleh produksi dan penangkapan ikan budidaya. Produksi perikanan budidaya rata-rata meningkat 19,19%, sedangkan produksi penangkapan rata-rata meningkat 2,63%. Tingkat produksi penangkapan di laut (2,62%) lebih baik dibandingkan lainnya (-2,31%). Produksi perikanan budidaya di laut lebih besar dibandingkan yang lain (2,01 juta ton) (tambak, kolam, keramba, jaring apung, sawah). Tingkat pertumbuhan ekspor dan impor rata-rata sebesar 4% dan 13%. Sumber daya ikan di Indonesia mempunyai potensi daya dukung kebutuhan protein. Tingkat rata-rata protein kontribusi sumber daya ikan yang tersedia > 100%.
Keyword: Fish resources, Production, Availability, Carrying capasitya, Indonesia

Judul: Analisis keragaan konsumsi ikan di Indonesia tahun 2005 - 2011
Abstrak: The objective of this study was to analyze fish consumption in Indonesia 2005–2011. The design of this study was the descriptive study. Data used in this study was secondary data based on national social and economic survey (SUSENAS). The study showed average national actual fish consumption 26,04 kg/capita/year, average rural actual fish consumption 25,69 kg/capita/year and average urban actual fish consumption 26,51 kg/capita/year. Average growth rate of national fish consumption is 0,05% per year. Average growth rate of rural fish consumption is -0,05% per year. Average growth rate of urban fish consumption is 0,37% per year. The group of fish that consumed the most is fresh fish (62%) and the less is cooked food (10%). Average national fresh fish consumption is 16,16 kg/capita/year. Average rural fresh fish consumption is 15,74 kg/capita/year. Average urban fresh fish consumption is 16,71 kg/capita/year. Fish consumption from prepared fish is higher in rural (32%) tahunan urban area. Average national prepared fish consumption is 7,25 kg/capita/year. Average rural prepared fish consumption is 8,30 kg/capita/year. Average urban prepared fish consumption is 6,39 kg/capita/year. Fish consumption from cooked food is higher in urban (14%) than rural area. Average national fish consumption from cooked food is 2,63 kg/capita/year. Average rural fish consumption from cooked food is 1,65 kg/capita/year. Average urban fish consumption from cooked food is 3,71 kg/capita/year. Low expenditure group consumed fish lower than high expenditure group. Ideal fish consumption is 32,7 kg/capita/ year or 12,9 gram protein/capita/day.The sufficiency of fish is projected 8,10 million tons at 2015.
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Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology