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: 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: Analysis of Dose Distribution to the Fetus Using Monte Carlo Simulation
Abstrak: Radioterapi pada ibu hamil harus memperhatikan dosis radiasi yang diterima janin. Oleh karena itu, perlu adanya pengetahuan lebih lanjut mengenai distribusi dosis pada janin. Penelitian ini bertujuan mengetahui distribusi dosis pada janin dengan paru-paru sebagai lokasi penyinaran dengan variasi usia janin, energi, medan paparan, dan jarak janin dengan lokasi penyinaran. Percobaan dilakukan dengan metode Monte Carlo menggunakan software EGSnrc dengan fantom berukuran 40x40x40 cm3. Hasil yang didapatkan pada trimester 1 janin mendapat dosis hingga 13% pada 0,02%. Trimester 2 janin mendapat dosis hingga 100% pada 0,04% dan trimester 3 janin mendapat dosis hingga 100% pada 0,07%. Selanjutnya, ketika menggunakan energi 3 MeV janin mendapat dosis hingga 100% pada 0,03%, dan dengan energi 5 MeV janin mendapatkan dosis hingga 100% pada 0,07%. Medan paparan diatur pada ukuran 5, It is important to pay attention to the amount of radiation the fetus receives when performing radiotherapy on pregnant women. Therefore, a further study is needed regarding dose distribution to the fetus. This study aims to determine the distribution of dose to the fetus with the lungs as the radiation location with variations in fetal age, energy, exposure field, and distance of the fetus to the radiation beam. The experiment was done using Monte Carlo method using EGSnrc with a sized phantom. In the 1st trimester, the fetus received dose up to 13% at 0,02%, in the 2nd trimester, the fetus receives dose up to 100% at 0,04%, and in the 3rd trimester, the fetus receives dose up to 100% at 0,07%. Furthermore, when using 3 MeV energy the fetus gets dose up to 100% in 0,03%, and with 5 MeV energy the fetus gets dose up to 100% in 0,07%. The exposure field is set at 5×5 cm2 resulting in the fetus receiving dose up to 37% in 0,009% and with an exposure field of 8×8 cm2 the fetus receives dose up to 100% in 0,07%. At location 1, the fetus receives dose up to 12% at 0,07% and at location 2 the fetus receives dose up to 100% at 0,075%.
Keyword: Monte Carlo, dosis janin, EGSnrc, radioterapi