Judul: Kajian Ekologis dan Biologi untuk Pengembangan Budidaya Rumput Laut (Eucheume cottonii di KEcamatan Kupang Barat Kabupaten Kupang Propinsi Nusa Tenggara Timur
Abstrak: The aims of research in Kupang Barat Sub District, Kupang regency are (1) to analyze suitable ecology for sustainable development to seaweed culture, (2) to analyze capacity for sistainable development of seaweed and (3) to recommend the management plan for sustainable development of seaweed. The study methode used was survey and experimental culture. The result showed that physic, chemical and biology parameters be related to seaweed growth. the coastal area unsuitable is 14.720,97 ha, marginal suitable is about 3.940,35 ha and siutbale is about 1.840,80 ha with carrying capacity of 552.224 unit by total production of 256.075 to/year/ The strategy plans for sustaible development are 1) ecologycal environmental management, 2) Aspec technology to seaweeds culture and 3) Spatial plan for carrying capacity.
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Judul: Pengembangan Kompetensi Pembudidaya Rumput Laut Secara Polikultur di Pantai Utara Jawa : Kasus di Bekasi Jawa Barat dan Brebes Jawa Tengah
Abstrak: Seaweed is easily cultivated in polyculture, it needs less capital, small risk, the market is open but there are many challenges and obstacles for farmers successfully produce seaweed. The competence of farmers in improving productivity and income and the factors influenced them were the questions of study. The objectives of this study are : (1) to explore competence of farmer in increasing productivity and income and to identify faktors influence them, and (2) to formulate an extension strategies. Research locations were carried out in Bekasi (West Java) and Brebes (Central Java). The data were collected from July 2010 to October 2010, 200 farmers involved from 457 population with sensus sampling. Data analyzed by using descriptively and structural equations model (SEM). Saveral methods of collecting data were questionnaire, interview, observation and reviewing secondary data and related documents. The research results show that : (1) the competence of farmers at a medium category and influenced by the effectiveness of extension, individual characteristics, and the learning process, (2) Low competence affected productivity, (3) Low productivity was influenced by the institutional support, competence and effectiveness of extension, and (4) Low productivity affected low income. Strategy implemented for developing farmers competence model can be achieved by (a) increasing the effectiveness of extension, (b) increasing learning process, and (c) increasing the institutional support.
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Judul: Cycle Hamilton pada Graf Lengkap, Graf Regular, dan Graf 2-Connected 4-Regular Berorder Kurang dari Sepuluh
Abstrak: Suatu graf disebut graf Hamilton apabila graf tersebut memuat cycle Hamilton, yaitu cycle yang melewati setiap vertex tepat satu kali. Menentukan keberadaan cycle Hamilton pada suatu graf dapat menggunakan syarat cukup yang berupa teorema-teorema yang telah diperkenalkan sejak tahun 1950-an. Beberapa syarat cukup yang dibahas dalam karya ilmiah ini adalah syarat cukup yang berhubungan dengan graf lengkap dan graf regular. Suatu graf lengkap berorder 𝑛������ ≥ 3 dan graf r-regular berorder 𝑛������ ≤ 2𝑟������ + 1 merupakan graf Hamilton, Karena kedua graf tersebut memuat cycle Hamilton. Selanjutnya, syarat cukup tersebut digunakan untuk menentukan keberadaan cycle Hamilton pada graf 2-connected 4- regular berorder kurang dari 10.
Keyword: graf Hamilton, graf regular, graf lengkap, graf 2-connected 4-regular