Judul: The Contribution of Ecotourism of Petengoran Mangrove Forest to the Income of the Gebang Village Community
Abstrak: Berbagai tipe hutan memiliki potensinya masing-masing seperti halnya hutan mangrove yang berpotensi menjadi ekowisata guna memberikan manfaat ekonomi bagi masyarakat sekitar. Penelitian ini bertujuan menganalisis kontribusi Ekowisata Hutan Mangrove Petengoran terhadap pendapatan masyarakat, menganalisis persepsi pengunjung ekowisata serta mengidentifikasi tingkat kesejahteraan rumah tangga masyarakat pengelola ekowisata. Pengumpulan data dilakukan dengan wawancara terhadap 28 responden masyarakat yang menjadi pengelola ekowisata dan 30 pengunjung ekowisata serta studi pustaka. Hasil penelitian menunjukkan kontribusi ekowisata terhadap pendapatan total rata-rata rumah tangga masyarakat sebesar 32,04%, mayoritas pengunjung merasa puas dengan fasilitas, pengelolaan dan harga tiket masuk ekowisata dan kesejahteraan masyarakat pengelola berada pada tingkat cukup hidup layak., Various types of forests have their own potential, such as mangrove forests which have the potential to become ecotourism in order to provide economic benefits for the surrounding community. Data were collected by interviews to 28 respondents which are ecotourism management communities and 30 visitors as well as literature study. The results showed that the contribution of ecotourism to the average total income of the community's household was 32.04%, and the majority of visitors were satisfied with the facilities, management, and ticket prices for ecotourism and the welfare of the managing community was at a decent level of living.
Keyword: Kontribusi, Kesejahteraan, Hutan Mangrove, Ekowisata

Judul: Kontribusi Pengelolaan Hutan Rakyat Terhadap Pendapatan Rumah Tangga Petani dan Analisis Kelayakan Usaha Hutan Rakyat. (Studi di Desa Babakanreuma, Kecamatan Sindangagung, Kabupaten Kuningan, Propinsi Jawa Barat)
Abstrak: According to Hardjanto (2000), income of community forest farmers in Java are still positioned as a by product and incidental. Range of income is not more than 10 % of total revenue and sought simply. It shows that the contribution of community forest have not become the foundation of households subsistence, so it is necessary to conduct a study about how is the contribution of community forests management to total household income and it’s feasibility, especially in the Village Babakanreuma, District Sindangagung, Kuningan Regency, West Java Province. The purpose of this study was to identify the system of community forests management and marketing, knowing the contributions community forests management to households total income as well as examine the linkage of effectiveness of community forests area to the households total income and to determine the feasibility of it’s businesses. Determination of the respondents conducted using stratified random sampling method in which the respondents were 36 people obtained from the slovin formula. This study uses a qualitative approach that conducted by survey method using questionnaire and supported by quantitative techniques. The results shows that the contribution of community forests management to the households income has been very visible, reinforced by the magnitude of the contribution value that become higher and increasing in strata. So that the farmers land area of community forest significantly affected their household income. From the data obtained, in 1st strata , the resulting contribution is Rp. 2,208,333.00 per year (7.79%), 2nd strata is Rp 3.800.000,00 per year (11.98%), and 3rd strata is Rp 5.500.000,00 per year (13.00%). Management of community forests is feasible to run on all three strata. These statements are based on the amount of NPV (Net Present Value) that is not negative, BCR (Benefit Cost Ratio) is greater than one and the IRR (Internal Rate of Return) is greater than the prevailing rates. NPV values in strata I, II and III is Rp 6.378.880,00; Rp 14.134.803,00 and Rp 3.985.918.00. Community forests management systems at the sites are still modest. The harvesting is still based on needs and not according to the Sengon plant cycle which is the staple in this village. The timber marketing is only done by a contract system or the middleman (tengkulak) / buyer and furthermore become the responsibility of the middleman / buyer it self.
Keyword: 

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.
Keyword: