Judul: aringan Komunikasi Kelompok Tani di Desa Benteng Jawa Barat Indonesia
Abstrak: Communication network analysis is one of method that can be used to identify the interaction of individuals with each other in particular group or with other parties outside the group, This method not only focused on the individuals and the social unit but also the quality of the relationship between social units. The aims of this study were, (1) Describe communication networks among farmers groups markets in Benteng Village, (2) Describe the communication network which formed among farmer groups in Benteng village and the role of the individual in the network structure, (3) analyze the correlation between individual characteristics and communication network, (4) Analysis the role of communication networks and the markets of crop collectors in improving the agricultural production of farmers in Benteng Village, and analyze the relationship between the communication networks and farmers marketing to their products. This study was conducted by utilizing qualitative and quantitative methods through semi-structured questionnaire and interviews for all farmers' groups members in Benteng Village, the analysis unit consisted of individuals which total 107 people, distributed into three groups of farmers who are member Gapoktan in Benteng Village, Ciampea, Bogor regency. In order to identify the communication networks, UCINET VI software was used in farmer network analysis, as well as correlation analysis using the Microsoft Excel through SPSS reinforced by data from SPSS 20 statistical tests. The results showed that the structure of communication network in the Gapoktan Tani Benteng form the structure of the wheel, and variable of individual characteristics such as age, the scale of business, are significantly related to the degree centrality. Relationship between farmer’s characteristics and communication network was a significant correlation at the level of 10% of the respondents with the communication networks and the value of -0.186, Thus, it can be said that the younger members of Gapoktan are the most centralized in the system and interested in using communication networks to communicate with other members of the other groups, while the older members are less he or she will interest in communication networks, on the other hand, members of old Gapoktan, or older than 65 years do not contribute much to activities of farming. The result showed that the correlation between communication network (Y1) and marketing (Y2) are significant, so, the coefficient between communication network and marketing Showing that, whenever were the communication rate highly among farmers, whenever were the marketing rate high., Analisis jaringan komunikasi merupakan salah satu metode yang digunakan untuk mengidentifikasi interaksi antarindividu dalam kelompok tertentu atau dengan pihak lain di luar kelompok tersebut. Metode ini tidak hanya berfokus pada individu dan unit sosial tetapi juga kualitas hubungan antarunit sosial. Penelitian ini bertujuan untuk: (1), mendeskripsikan jaringan komunikasi pemasaran kelompok petani di Desa Benteng, (2), mendeskripsikan jaringan komunikasi yang terbentuk di antara kelompok petani di desa Benteng dan peran individu dalam struktur jaringan, (3), menganalisis korelasi antara karakteristik individu dan jaringan komunikasi, (4), menganalisis peran jaringan komunikasi dan pasar pengumpul (tengkulak) dalam meningkatkan produksi pertanian di Desa Benteng, dan menganalisis hubungan antara jaringan komunikasi dan pemasaran produk pertanian oleh petani. Penelitian ini dilakukan dengan menggunakan
Keyword: Agricltural Marketing, Communication Network, Farmers Group, Market Efficiency, Farmer Network Analysis

Judul: Analisis Jaringan Komunikasi pada Gabungan Kelompok Tani
Abstrak: Gapoktan merupakan suatu gabungan kelompok tani yang menjadi wadah bagi setiap anggotanya untuk semakin mandiri dan berdaya dalam bertani. Jaringan komunikasi yang terbentuk dalam gapoktan dapat dianalisis untuk mengetahui derajat sentralitas, tingkat kedekatan, dan tingkat keperantaraan. Penelitian ini dilakukan dengan menggunakan pendekatan kuantitatif didukung data kualitatif. Pendekatan kuantitatif dilakukan dengan menggunakan kuesioner dan dengan metode free recall. Unit analisis dalam penelitian ini adalah individu. Jumlah responden dalam penelitian ini berjumlah 90 orang. Pemilihan responden pada penelitian ini dilakukan dengan metode sensus. Hasil penelitian ini menunjukkan, dengan menggunakan uji statistik Rank Spearman tidak terdapat hubungan antara variabel karakteristik individu petani dengan jaringan komunikasi, namun pada tingkat penerimaan informasi budidaya dan pemasaran terdapat hubungan yang signifikan antara variabel tersebut dengan jaringan komunikasi. Tidak ditemukan adanya hubungan antara jaringan komunikasi dengan pendapatan usahatani yang diperoleh individu dalam gapoktan.
Keyword: gapoktan, jaringan komunikasi, petani

Judul: Hydrothermal Synthesis of Biphasic Calcium Posphate
Abstrak: Biphasio calsium phosphate (BCP), which was a mixture of hydroxypatite (HA) and tricalcium phosphate (TCP), was synthesized by hydrothermal method followed by sintering process. Hydroxyapatite was produced by using natural calcium source CaO from hen's eggshell and (NH4)2HPO4 as phosphate souce, other hydroxyapatite sample was produce by using synthetic calcium source Ca(OH) and H3PO4 as phosphate source.
Keyword: