Judul: Kajian Ekonomi Pelestarian Penyu Sebagai Obyek Wisata Berbasis Jasa Lingkungan (Studi Kasus Turtle Conservation and Education Center (TCEC) Pulau Serangan, Bali)
Abstrak: Turtle conservation is important activity for sustaining turtle resources. Turtle Conservation and Education Center (TCEC) in Pulau Serangan, Bali, which plays a significant role in conservation of turtle. TCEC has the potential for tourism activities, whereas the economic assessment is required for their sustainability. Research objectives of this study were to assess the turtle resource management system in TCEC, to identify the characteristics of turtle conservation in TCEC, to analyze the economic value of ecotourism in TCEC and to assess feasibility of the development of TCEC. The research method that used was survey. This research used data analysis method, that were (1) descriptive analysis, which used to assess the management system on turtle resources and to identify the characteristics of tourists, (2) Travel Cost Method (TCM), (3) Contingent Valuation Method (CVM), and (4) Cost Benefit Analysis (CBA). The result showed that were some differences in the characteristics of foreign and domestic tourists respondents viewed from age, educational background, income level, number of dependents and the frequency of their visits. TCEC has a high economic value, amounting to Rp 518.656.568.627. WTP values of domestics tourists respondents was Rp 10.661,76 per visit and the value of foreign tourists respondents was reach to Rp 55.333,33 per visit. Feasibility analysis of TCEC during 2008-2013 showed that financial sustainability of turtle conservation is limited, therefore the financial management of TCEC needs to be improved. Analysis of TCEC development plan from 2014-2023 indicated that TCEC will be feasible based on some criteria such as NPV> 0, Net B / C ≥ 1 and IRR ≥ discount rate. TCEC activities in turtle conservation is important for sustainability of turtle resource
Keyword: Ecotourism, Travel Cost Method, Contingent Valuation Method, Cost Benefit Analysis, Turtle conservation

Judul: Potensi Penyu Hijau (Chelonia mydas L.) sebagai Daya Tarik Ekowisata di Kawasan Pantai Sindangkerta Kabupaten Tasikmalaya
Abstrak: Sindangkerta beach is one of the spreading locations of green turtles (Chelonia mydas) in Indonesia. The existence of the green turtles can potentially become one of the ocean ecotourism objects. The purpose of the research is investigating the potential of green turtles (environment, habit, spreading of nest, and laying eggs period), knowing the interest of visitors to the green turtle and arranging the planning of development of ocean tourism program based on green turtles to the organizer of wildlife reserve and the organizer around it. The data collection includes of green turtles potential data, data of visitors, community around Sindangkerta Beach, and the supporting data (accessibility, accommodation, and supporting instruments). The collected data will be tabulated and analyzed descriptively to get the information about the development and potential of green turtles and the activities of the tourism that have been done. For the development of tourism plan will be done by SWOT analysis. The green turtles which get off on the beach every year will be different in amount and will fluctuate. It can be influence by the weather (speed of wind). The potential of green turtles which can become the activity of ocean tourism based on the interest of the visitors is seeing the habit of green turtles in finding food and laying eggs, the activity of maintenance, and releasing the small green turtles. Most of the visitors are students (including students of colleges). Development of the ocean tourism is also supported by the local community. Visitors and local community hope that the development of ocean tourism can preserve the green turtles and increase the economic level for the local community by involving them in managing the program. Ocean tourism based on green turtles program can be done such as introducing and informing the visitors about characteristic of environment and the habit of green turtles at Sindangkerta Beach. Increasing the corporation with all stakeholders is needed in order to preserve the green turtles and to make a continuity of ocean tourism object.
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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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