Judul: Modal Sosial Kelompok Tani Hutan Rakyat (Studi Kasus di Desa Damarwulan, Kecamatan Keling, Kabupaten Jepara)
Abstrak: Community-based forest management has been proved to be able to prevent forest degradation at some locations. So that, to sustain community forest it is important to consider social capital of community in forest management. The purpose of this study is to find out the farmer group activity and the management organization also to identify and assess individual characteristics and social capital of farmer group. This study was conducted at the Damarwulan Village, Keling District, Jepara Regency on April 2014 using survey methods from 30 farmers. Data collected using observation, interview, documentation, and technics analyzed descriptively. Based on the assessment, the individual characteristics of farmers was in the medium category, while the social capital was at the high level. Individual characteristics that significantly correlated to the elements of social capital based on Spearman correlation were non-formal education, formal education, land area, and period of residential. Individual characteristics that significantly correlated to the social capital level were formal and non-formal education, period of residential.
Keyword: social capital, individual characteristics, farmer group, community forest management

Judul: Modal sosial Petani dalam pengelolaan hutan rakyat Koperasi Wana Lestari Menoreh (Desa Pagerharjo, Kabupaten Kulon Progo, D.I. Yogyakarta)
Abstrak: This study aimed to find the information about social capital elements that were owned by the private forest farmers of Wana Lestari Menoreh cooperative members. These elements of social capital comprised of trust, social networking, and social norms. The data used in this study were (1) The system of community forest management, (2) The institutional role of the cooperatives, (3) The social capital from the member of farmers. Family-based land management was an important aspect that determined the private forest management at Pagerharjo. The respondents’ trust indicated the level of an average score of 8.37 (high category). The basis of the respondents’ trust was the ability and intention of cooperative as an institution in managing and marketing wood product of the members. In addition, a cooperation between the Wana Lestari Menoreh cooperative and credit union Kharisma Taliasih could help farmers to get a creditloan with tree ownership as collateral. The social networking of respondents indicated a score in an average of 8.43 (high category). The ability of the respondent farmers to build a number of associations and social networks was shown by the existence of social relations, broadness, and openness. The mean score of social norms was 8.10 (high category). The high score of social norms was due to the relationship of trust and cooperation rules among the society to realize the forest land management.
Keyword: Bogor Agricultural University (IPB), social capital, private forest, forest cooperative institution

Judul: Approximation of the Median of Poisson Distribution Using the Relation of Poisson-Gamma Distribution
Abstrak: A major drawback of median is that median cannot usually be defined in closed form, even in the cases where their distribution functions are known. This study gives an approximation of the closed form for the median of the Poisson distribution by using the relation of Poisson-Gamma distribution. The approximation uses elementary techniques based on the monotonicity of certain sequences involving tail probabilities of the Poisson distribution and the Central Limit Theorem. Furthermore, a closed form expression for the mean absolute deviation 􀜧|􀜰􀰒 􀵆 􀜯􀝁􀝀􁈺􀜰􀰒􁈻| is also studied. The median is relevant because of the fact that it minimizes the mean absolute deviation of a Poisson random variable (􀜰􀰒􁈻 by considering median as central tendency.
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