Judul: Dampak pengembangan pariwisata terhadap keberlanjutan sumbak embukan (studi kasus:desa Ababi, kecamatan Abang, kabupaten Karangasem)
Abstrak: The objective of this study is to see observe and analyze the impact of tourism development on the sustainability of Subak Embukan as well as its agriculture production. Subak is a Balinese indigenous irrigation management institution. The study was conducted at the Subak Embukan located at Ababi Village, Abang sub-Regency, Karangasem Regency. The qualitative data were explored through in-depth interviews and field observations. Meanwhile a survey method to 30 farmers of the Subak Embukan‟s member was applied for gathering quantitative figures. The impacts were measure through with and without (tourism) approach. The result shows that tourism that grew on Ababi Village of Bali has brought adverse impacts to Subak Embukan in terms of its paddy fields areas. In the last four years, through the permission of customary community elders, 12 out of 87 hectares of Subak Embukan land are converted for tourism facilities and infrastructure. So far, at a certain point, the decline of Subak’s paddy lands seems did not significantly influence the amount of member, institutional configuration and irrigation management capacity of the Subak. However, if the land conversion continues to grow, the sustainability of the Subak Embukan will be threatened in the future.
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Judul: Study on Landscape Structure of Subak  Suradadi Rice Terraces and its Development as Agro-Cultural Tourism in Belimbing  Village, Tabanan District, Bali
Abstrak: Desa Belimbing terletak di lereng Gunung Batukaru, Kecamatan Pupuan, Kabupaten Tabanan. Keindahan visual sawah dan lanskap desanya telah dimanfaatkan sebagai obyek wisata, namun demikian luasan sawah teras menurun akibat alih fungsi menjadi kebun, fasilitas wisata dan peruntukan yang lain. Oleh karena itu perlu diantisipasi melalui perencanaan dan pengelolaan yang holistik dan terintegrasi dengan aspek terkait sehingga tidak menimbulkan dampak negatif dengan merosotnya kualitas lingkungan, sosial budaya, dan visual sawah teras, akan tetapi diharapkan dapat meningkatkan kondisi ekonomi masyarakat dan tetap terjaganya karakter khas lanskap sawah teras. Penelitian ini bertujuan untuk menyusun konsep guna menjaga keberlanjutan lanskap sawah teras dengan melindungi struktur lanskap sawah teras dan memberdayakan fungsinya sebagai obyek wisata budaya pertanian di Desa Belimbing. Struktur sawah teras mencerminkan penerapan konsep tradisional tata ruang Hindu yang berdasarkan Tri Hita Karana, dengan Gunung Batukaru sebagai pusat orientasi arah ruang kehidupan. Komponen utama struktur lanskap sawah teras mencakup bangunan suci, sungai dan saluran irigasi, sawah teras, telajakan, jalan serta rumah petani di pemukiman. Aktivitas petani yang tergabung dalam kelompok subak menjadi penentu hubungan timbal balik struktur lanskap sawah teras. Sistem subak merupakan organisasi sosio religi masyarakat petani yang tidak hanya mengelola pemanfaatan sumber daya air untuk sawah namun juga menjamin keberlanjutan proses produksi padi dan struktur lanskap sawah teras yang ada. Nilai penting yang melekat pada lanskap sawah teras yaitu sebagai lahan produksi, media aktivitas ritual, budaya · dan interaksi petani, hasil karya leluhur berupa lanskap sawah budaya yang mencerminkan bentuk pengelolaan alam secara arif, kualitas visual, serta keseimbangan ekosistem dan keragaman hayati, merupakan alasan kuat untuk dilakukannya usaha konservasi. Konsep konservasi yang diusulkan adalah melindungi kelestarian lanskap pedesaan khususnya kawasan lanskap sawah teras Subak Suradadi, dengan menjaga kualitas sumberdaya alam dan budaya serta memberdayakan potensi yang dimiliki sehingga tercapai pemanfaatan terbaik dan berlanjut. Dalam konsep ini dibuat zonasi pengelolaan yang mencakup: (1) Zona inti (nominated property) yakni sawah teras, (2) zona penyangga (buffer) yakni telajakan, pemukiman petani, hutan dan kebun, (3) zona pengembangan yakni ruang terbuka pada pemukiman, ( 4) zona suci yakni kawasan di sekitar Pura/bangunan suci., One of beautiful unique rice terraced landscape in Bali is located in Belimbing Village, Tabanan. However, many rice terraces has been changed into plantation, tourism· facilities or other land uses. A comprehensive planning and management are needed to increase negative impacts to environment quality, socio cultural and visual quality of rice terraced landscape. The objectives of this study is to provide a concept for conservation and its development as an agro-cultural tourism object in Belimbing Village, with the specific objectives are to identify the landscape structure ofrice terraced landscape and its influence factors, especially culture and economis; to analyse the sustainability of the rice terraced landscape arid its potency for tourism; to propose conservation and agro-cultural tourism development concept. The structure of rice terraced landscape consist of Hindu temple, river and its irrigation network, rice terraces, telajakan, subak street, and farmer house in settlement, which is resulted from the interaction of biophysics, economic, socio-cultural and also its "Subak" irrigation system. The space pattern of rice terraced landscape in Belimbing Village reflects the concept of Tri
Keyword: Agro-cultural tourism, Lanscape planning

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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