Judul: Contribution of Sunge Jingkem Mangrove Forest Ecotourism to the Income of the Samudra Jaya Village Community, Bekasi Regency
Abstrak: ABSTRAK FEBY DIMAS PERDANA. Kontribusi Ekowisata Hutan Mangrove Sunge Jingkem Terhadap Pendapatan Masyarakat Desa Samudra Jaya Kabupaten Bekasi. Dibimbing oleh LETI SUNDAWATI. Ekosistem mangrove memiliki banyak manfaat langsung bagi manusia berupa produk ataupun jasa antara lain dapat menyediakan pangan dan objek wisata alam, pemanfaatan jasa ekosistem berupa ekowisata akan mendorong upaya konservasi ekosistem mangrove. Penelitian ini bertujuan untuk mengidentifikasi karakteristik masyarakat yang terlibat dalam pengelolaan Ekowisata Hutan Mangrove Sunge Jingkem, menganalisis kontribusi Ekowisata Hutan Mangrove Sunge Jingkem terhadap pendapatan masyarakat serta mengidentifikasi tingkat kesejahteraan rumah tangga masyarakat pengelola ekowisata. Pengumpulan data primer dilakukan dengan wawancara kepada masyarakat pengelola Ekowisata Hutan Mangrove Sunge Jingkem sebanyak 35 orang serta melalui studi pustaka. Hasil penelitian menunjukkan bahwa kontribusi ekowisata terhadap pendapatan total rata-rata rumah tangga masyarakat berkisar 5% sampai 100%. Responden pengelola ekowisata termasuk kategori sejahtera menurut indikator kesejahteraan Bank Dunia, namun pendapatan mayoritas responden masih di bawah Upah Minimum Kabupaten (UMK) Bekasi. Kata kunci: ekowisata, hutan mangrove, kesejahteraan, kontribusi, ABSTRACT FEBY DIMAS PERDANA. Contribution of Sunge Jingkem Mangrove Forest Ecotourism to the Income of the Samudra Jaya Village Community, Bekasi Regency. Supervised by LETI SUNDAWATI. Mangrove ecosystems have many direct benefits to people in the form of products or services, including the ability to provide food and natural attractions. The use of mangrove ecosystem services in the form of ecotourism will promote the conservation of mangrove ecosystem. This study aims to identify the characteristics of the community involved in the management of Sunge Jingkem Mangrove Forest Ecotourism in Bekasi District, analyse the contribution of Sunge Jingkem Mangrove Forest Ecotourism to community income and household welfare. Primary data was collected by interviewing 35 people who involved in management of the Sunge Jingkem Mangrove Forest Ecotourism. The research results show that the contribution of ecotourism to the average total household income ranges from 5% to 100%. Respondents who manage ecotourism are classified as prosperous category according to World Bank welfare indicators, but the majority of respondents incomes are still below the Bekasi Regency Minimum Wage (UMK). Keywords: Contribution, Ecotourism, Mangrove forest, Household welfare
Keyword: feby dimas perdana

Judul: Kajian Ekopnomi dan Ekologi Pemanfaatan Ekosistem  Mangrove Pesisir Tongke-Tongke Kabupaten Sinjai Provinsi Sulawesi Selatan
Abstrak: The ecosystem of mangrove forest at the coastal area of Tongke-Tongke, Sinjai Regency, South Sulawesi Provence, which is the result of the community’s self effort, is feared to face degradation as a result of the demand of local community for livehold, there for this research was intended to a) determine the economic value of the mangrove ecosystem at Tongke-tongke, b) analyze the suitability of the mangrove area particularly for fish pond, and c) determine the socio-economic condition of the local community. Te area suitability for fish pond was determined on the basis of the water quality, soil quality and areasupporting resources by analysis of Geografic Information System (GIS) and factorial discriminant analysis. The data of socio-economy was obtained by interviews of quistionnaires with 84 respondents. To examine the effect of socioeconomic factors, a multivariate analysis of the principal component (PCA) and linear multiple regression analysis were employed. The result of the research showed that the area was highly suitable for fish and shrimp ponds, and scenario 1 (natural condition of mangrove) was the most profitable alternative management. Result of economic benefit analysis on mangrove determine that the highest proportion for total economic value of mangrove ecosystem was indirect benefit with value Rp. 4.434.816.711,00/year or 96,67 %, furthermore the existence benefit was Rp.101.478.371,00/year or 2,21 % and the indirect benefit was Rp.46.643.904,00/year or 1,02 %, while choice benefit value was Rp.4.434.450,00 /year or only 0,10 % from total benefit value. Individuals with a big number of family numbers tended to have a big number of workers, high income and expenses, too. The family income is affected by the number of family number, independent ratio, and type of jobs; where expense is influenced by the umber of family member and independent ratio.
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Judul: Construction of Strongly Optimal Binary Linear Code with Minimum Distance 9 and 11
Abstrak: A binary linear code of length n over q F is a subspace of n q F . A code has three parameters that attached to it, namely length, dimension, and minimum distance. A code with length n, dimension k and minimum distance d is often called [n, k, d ]-code. Usually, when two parameters are given, then we want to find a code that has the best value for the last parameter. Based on Gilbert- Varshamov bound, if a [n, k, d ]-code exists and can not be expanded, we call it a strongly optimal code. In this paper, we construct strongly optimal code with minimum distance 9 and 11. In constructing the code, we created a theorem and algorithm based on Gilbert-Varshamov bound before we implement the algorithm to MAPLE programming language. Because of computational limitations, the program can only construct up to k = 10 for d = 9 and k = 12 for d = 11.
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