Judul: The development of a model for improving human resource quality and family well-being in coastal area, West Java Province.
Abstrak: One of the most problems of coastal communities in Indonesia is the high of poverty level and low of human resources quality. The purpose of this research is to develop a model for improving the quality of human resource and family well-being in coastal area. The study involved 280 families randomly selected from four districts of West Java. The results show that the quality of human resources in northern coastal tend to be lower than that of families in southern coastal area. Fisherman families tend to have lower quality of human resources rather than non-fisherman families. According to World Bank and BPS indicators, families in northern coastal area are wealthier than families in southern. Meanwhile, in terms of BKKBN and socio-metric indicators, it shows that families in southern coastal area tend to have higher family well-being than families in northern coastal area. Based on the analysis of structural equation model shows that family well-being in a coastal area can be improved by increasing family income, assets, gender relation in family decision making process, education and health conditions of family’s member, and reducing family size.
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Judul: Welfare refinement model for fishermen through improvement of fishery business sector at the regency of rokan hilir, Riau Province.
Abstrak: Fishery sector has not significantly given a denotable economic contribution in improving fishermen’s welfare, as shown by fishermen’s poverty headcount index (PHI) of 0.32 which falls in “poor” category. This research was carried out to develop a welfare improvement model for fishermen based on both internal and external factors affecting the fishery sector in Regency of Rokan Hilir. The study was conducted by applying Structural Equation Model (SEM) method which considers some external and internal factors in fishery business, activities in fishery industry, capture fishery activities, aquaculture activities, fish processing activities, central government, regional government, and fishermen welfare factors. The research was conducted in four coastal sub-districts in the Regency of Rokan Hilir, Riau Province and data collection was carried out in an eight-month period, from July 2008 to February 2009. Two additional analysis were simultaneously carried out for this research, i.e. fishermen welfare analysis using welfare indicators established by the Indonesian Bureau of Statistic, financial performance analysis of fishery business that calculated conventional indicators, such as net present value (NPV), net benefit-cost ratio (NB/C), internal rate of return (IRR), return on investment (RoI), and payback period (PP). SEM analysis concluded that in overall the studied factors significantly affected fishermen welfare improvement in the area. Both capture and aquaculture activities significantly promote fishermen’s welfare as they involved more labors from local work forces. The national and local fisheries authorities indirectly affected the fishery industry through their regulation while the local authorities significantly promoted the expansion on some fisheries activities and fishermen’s welfare. The fishery businesses with payang, bubu, serok, jaring insang hanyut and handline are worth developing as indicated by satisfactory financial indicators, i.e. values of both NPV and NB/C > 0, IRR was greater than 8.65% (the interest rate of the time of data collection) and the ROI and PP were considerably shorter or faster. On the other hand, the fishery businesses with jaring insang lingkar, pukat udang and pukat pantai are not worth due to unsatisfactory performance, i.e. both NPV and NB/C < 0, and IRR was considerably lower than 8.65%) and the ROI and PP were longer or slower.
Keyword: Financial Performance Analysis, Rokan Hilir, Fishermen’s Welfare, Structural Equation Modeling, Riau

Judul: Closed Knight’s Tour pada Papan Catur Berbentuk Persegi Panjang dengan Ukuran Maksimal 8 × 8
Abstrak: Closed Knight’s Tour merupakan langkah kuda yang mengunjungi setiap kotak pada papan catur tepat satu kali dengan langkah kuda berawal dan berakhir pada kotak yang sama. Graf yang terbentuk dari closed knight’s tour dinotasikan sebagai graf G(m,n), dengan m adalah banyaknya baris dan n adalah banyaknya kolom. Graf tersebut memuat Hamiltonian cycle. Sebuah graf terhubung G adalah graf bipartite jika dan hanya jika graf tersebut tidak memiliki cycle dengan panjang ganjil. Papan catur yang memenuhi syarat cukup untuk memiliki closed knight’s tour adalah papan catur berukuran 5 × 6, 5 × 8, 6 × 6, 6 × 7, 6 × 8, 7 × 8, dan 8 × 8.
Keyword: bipartite, closed knight’s tour, hamiltonian cycle, knight’s tour, teori graf