Judul: Estimasi Nilai Kerugian Ekonomi dan Strategi Adaptasi Terhadap Banjir Rob di Kampung Pondok, Pesisir Desa Pantai Harapan Jaya, Kecamatan Muara Gembong, Kabupaten Bekasi
Abstrak: Muara Gembong Sub-district is one of the northern coast Java located in Bekasi District. Muara Gembong Sub-district surrounded by the Java Sea and crossed by the Citarum river with four tributaries which end to the Java Sea. Pantai Harapan Jaya Village is the widest coastal region at Muara Gembong Sub-district which often experienced frequent tidal flood. Kampung Pondok is the worst affected area in the Pantai Harapan Jaya Village which are directly affected by tidal flood. People who live in Kampung Pondok experienced economic losses because of tidal flood. The purpose of this research were to identify perception community about the characteristics and impacts of tidal flood, to estimate economic losses by tidal flood, to identify factors that affected community’s decision to make preventive measures and to identify the adaptation strategies to minimize the impact of tidal flood. The research method that used was a case study. This research used four analysis methods, that were: (1) descriptive analysis, (2) damaged assessment method, (3) logistic regression analysis and (4) Exponential Comparison Method (ECM). The result showed that the impact of tidal flood were the disruption of daily activities and public health of the community, the decrease of income, house damage and the decreasing of housing environment condition. The total estimated of economic losses which suffered by the community of Kampung Pondok due to the tidal flood period from January to February 2013 was Rp 127.188.875. The total of prevention cost that the community Kampung Pondok issued within the last six years was Rp 22.671.570. The factors that influenced the decision of community to conduct a prevention and adaptation were the total economic losses, household income, and length of stay. There were four alternatives adaptation strategy of tidal flood based on the result of policy analysis with MPE. The alternatives were planting and maintenance mangrove, using waves breaker, develop of soil retaining wall along the river and community relocation.
Keyword: Tidal Flood, Kampung Pondok, Economic Losses, Adaptation Strategies

Judul: Estimated Value of Community Economic Losses Due to  the Cipinang River Flood (Case Study: Rambutan Village, East Jakarta)
Abstrak: Kelurahan Rambutan merupakan salah satu kelurahan di Jakarta yang rawan dilanda banjir tiap tahunnya. Penyebab banjir di kelurahan ini adalah luapan air dari Sungai Cipinang. Banjir yang terjadi menimbulkan kerugian bagi masyarakat. Tujuan dari penelitian ini adalah mengidentifikasi persepsi masyarakat mengenai banjir, mengestimasi nilai kerugian ekonomi masyarakat akibat banjir, menganalisis strategi adaptasi masyarakat terhadap banjir, dan memberikan rekomendasi alternatif program pengurangan dampak banjir di Kelurahan Rambutan. Analisis dilakukan menggunakan analisis deskriptif, skala likert, pendekatan harga pasar, cost of illness, opportunity cost, dan Preference Ranking Organization METHods for Enrichment Evaluation (PROMETHEE). Hasil menunjukkan bahwa masyarakat tetap nyaman tinggal di lokasi saat ini meskipun rawan banjir karena mereka merasa lingkungan bertetangga nyaman dan telah terbiasa terhadap bencana banjir yang terjadi tiap tahun. Berdasarkan penilaian ekonomi menunjukkan total nilai kerugian ekonomi masyarakat akibat banjir sebesar Rp 161.911.740. Masyarakat telah melakukan strategi adaptasi terhadap banjir dengan bentuk strategi adaptasi paling banyak yaitu meninggikan lantai rumah. Hasil analisis PROMETHEE menyimpulkan alternatif program terbaik dalam upaya pengurangan dampak banjir di Kelurahan Rambutan adalah pengerukan sedimentasi.
Keyword: cost of illness, river overflow, opportunity cost, PROMETHEE

Judul: Cycle Hamilton pada Graf Lengkap, Graf Regular, dan Graf 2-Connected 4-Regular Berorder Kurang dari Sepuluh
Abstrak: Suatu graf disebut graf Hamilton apabila graf tersebut memuat cycle Hamilton, yaitu cycle yang melewati setiap vertex tepat satu kali. Menentukan keberadaan cycle Hamilton pada suatu graf dapat menggunakan syarat cukup yang berupa teorema-teorema yang telah diperkenalkan sejak tahun 1950-an. Beberapa syarat cukup yang dibahas dalam karya ilmiah ini adalah syarat cukup yang berhubungan dengan graf lengkap dan graf regular. Suatu graf lengkap berorder 𝑛������ ≥ 3 dan graf r-regular berorder 𝑛������ ≤ 2𝑟������ + 1 merupakan graf Hamilton, Karena kedua graf tersebut memuat cycle Hamilton. Selanjutnya, syarat cukup tersebut digunakan untuk menentukan keberadaan cycle Hamilton pada graf 2-connected 4- regular berorder kurang dari 10.
Keyword: graf Hamilton, graf regular, graf lengkap, graf 2-connected 4-regular