Judul: Strategy and Livelihood Structure for Farmer Household After Agrotourism Development
Abstrak: Sektor pertanian tidak hanya digunakan untuk memproduksi pangan atau bahan mentah industri tetapi juga dimanfaatkan sebagai sarana wisata dan kegiatan edukasi. Kegiatan wisata yang memanfaatkan lahan pertanian disebut dengan agrowisata. Kehadiran agrowisata ini membawa banyak dampak positif bagi masyarakat di sekitar tempat wisata, seperti peningkatan ekonomi masyarakat sebab adanya penyerapan tenaga kerja untuk bidang wisata. Di sisi lain, adanya aktivitas wisata tersebut tentu akan memengaruhi aktivitas pertanian dan dapat berdampak pada sumber nafkah petani. Penelitian ini menggunakan pendekatan mixed-method untuk melihat hubungan antar variabel. Hubungan antar variabel ini secara statistik diolah menggunakan uji korelasi Rank Spearman dengan jumlah responden sebanyak 35 rumah tangga petani. Hasil penelitian yang diperoleh menunjukan bahwasanya setelah adanya pengembangan agrowisata terjadi perubahan kepemilikan modal nafkah pada modal alam, modal fisik, modal manusia dan modal finansial. Selain itu, perubahan juga terjadi pada strategi nafkah yang mereka lakukan. Hal tersebut menyebabkan perubahan struktur nafkah rumah tangga petani, karena adanya proposi sumber nafkah baru dari sektor pariwisata., The agricultural sector is used not only to produce food or industrial raw materials but also as a means of tourism and educational activities. Tourism activities that utilize agricultural land are called agrotourism. The presence of agro-tourism brings many positive impacts for the community around tourist attractions, such as improving the community's economy because of the absorption of labor for the tourism sector. On the other hand, the existence of tourism activities will certainly affect agricultural activities and can have an impact on farmers' livelihoods. This study uses a mixed-method approach to see the relationship between variables. The relationship between these variables was statistically processed using the Spearman Rank correlation test with the number of respondents as many as 35 farmer households. The results obtained indicate that after the development of agro-tourism there is a change in the ownership of livelihood capital in natural capital, physical capital, human capital and financial capital. In addition, changes also occur in their livelihood strategies. This causes changes in the structure of farmer household livelihoods, due to the proportion of new sources of income from the tourism sector.
Keyword: agrotourism, livelihood assets, livelihood strategy, livelihood structure

Judul: Dampak Pengembangan Ekowisata: Struktur Nafkah serta Adaptasi dan Mitigasi Perubahan Iklim Rumah Tangga.
Abstrak: Ekowisata merupakan kegiatan pariwisata yang mengandalkan kondisi alam dan lingkungan sebagai destinasi wisata. Kehadiran wisata dapat berpengaruh terhadap kondisi nafkah rumah tangga pedesaan di sekitar wilayah wisata. Selain itu, ekowisata juga dapat menjadi kegiatan untuk adaptasi dan mitigasi perubahan iklim. Tujuan dari penelitian ini adalah untuk menganalisis struktur nafkah rumah tangga pedesaan yang diakibatkan karena kehadiran ekowisata dan bagaimana kegiatan adaptasi dan mitigasi perubahan iklim yang dilakukan rumah tangga di wilayah ekowisata. Penelitian ini menggunakan metode penelitian campuran. Jumlah responden dalam penelitian ini sebanyak 60 rumah tangga dengan komposisi 30 rumah tangga pekerja wisata dan 30 rumah tangga bukan pekerja wisata. Penelitian ini menggunakan uji hubungan Rank spearman dan uji Wilcoxon signed rank test. Hasil penelitian menunjukan bahwa pengembangan ekowisata menyebabkan perubahan modal nafkah sosial, manusia, fisik, dan finansial. Penelitian ini juga menemukan sumber nafkah baru yaitu pariwisata. Kegiatan ekowisata juga dapat menjadi adaptasi dan mitigasi perubahan iklim yang sekaligus dapat menjadi kegiatan untuk melestarikan wilayah ekowisata agar lebih berkelanjutan., Ecotourism is a tourism activity that relies on natural and environmental conditions as a tourist destination. The presence of tourists can affect the livelihood conditions of rural households around tourist areas. In addition, ecotourism can also be an activity for climate change adaptation and mitigation. The purpose of this research is to analyze the livelihood structure of rural households caused by ecotourism and how climate change adaptation and mitigation activities are carried out by households in ecotourism areas. This study uses mixed research methods. The number of respondents in this study were 60 households with a composition of 30 tourist worker households and 30 non-tourist worker households. This study used the Spearman rank relationship test and the Wilcoxon signed rank test. The results of the study show that the development of ecotourism causes changes in social, human, physical and financial livelihood capital. This research also found a new source of income, namely tourism. Ecotourism activities can also be climate change adaptation and mitigation which can also be activities to preserve ecotourism areas to make them more sustainable.
Keyword: adaptation, climate change, ecotourism, livelihood structure, mitigation

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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