Judul: Communication Behavior Among Dairy Farmers of STA. Maria, Bulacan
Abstrak: The study sought to find out the communication behavior of dairy farmers in Sta. Maria Dairy Plant (SMDP). Specifically, it aimed to determine the availability and use of communication media, and to identify the communication practices of dairy farmers in order to design a communication plan that will support the cow dispersal program, increase milk production and increase farmers' income.
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Judul: Study of communication network in the implementation of milking hygiene and sanitation in dairy farmers’ group (case in Subdistrict of Pamulihan, District of Sumedang)
Abstrak: The main goal of dairy farming is to produce a high quality of milk which free from any residue and meet the minimum bacteria standard. One of the efforts to achieve it by doing milking hygiene and sanitation correctly. Dairy farmers need trusted and reliable information about milking hygiene and sanitation to increase the quality of milk. They established a communication network among them to meet their demand of milking hygiene and sanitation information. The research of Communication Network in the Implementation of Milking Hygiene and Sanitation in Dairy Farmers’ Group refered to the convergen communication model which defined communication as process of sharing dan creating information between communicant. The study area of communication network include the individual roles in communication network such as star, bridge, liason, cosmopolite and isolate in their group and communication network variables such as local centrality, global centrality and betweeness. The objectives of this research were: (1) to describe communication network among dairy farmers (2) to analyze the relationship between individual characteristics and dairy farming characteristics to the communication network (3) to analyze the relationship between individual characteristics and dairy farming characteristics to the implementation of milking hygiene and sanitation (4) to analyze the relationship between communication network and the implementation of milking hygiene and sanitation. The research was designed as a correlational and descriptive which used dairy farmers as unit of analysis. The research has been carried out from August to November 2012 at Desa Haurngombong and Mekar Bakti, Subway Pamulihan, Sumedang District which determined by purposive. There are 87 dairy farmers taken as sample by using sampling intact system. Data was analyzed by UCINET VI to calculate the communication network variabels index and Rank Spearman Correlation was applied to analyze the relationship among variables. The result of this research showed that : (1) communication network about milking hygiene and sanitation in Harapan Jaya farmer’s group was radial individual network but communication network with the same theme in Mekar Sari farmer’s group was interlocking individual network, (2) there was a significant relationship between farmers’ experience level, group involvement, cooperation involvement, cosmopolitant and dairy ownership to the local and global centrality, (3) There was also a significant correlation between cosmopolitant and dairy ownership with the implementation of milking hygiene and sanitation (4) there was a significant relationship between local centrality, global centrality and the implementation of milking hygiene and sanitation.
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Judul: Solusi Geometri Schwarzschild untuk Dimensi 4+1 dengan Invarian Rotasi Isotropik
Abstrak: Metrik Schwarzschild merupakan solusi eksak pertama dari persamaan medan Einstein dengan mangasumsikan metrik statik dan simetris. Metrik Schwarzschild yang ditemukan oleh Karl Schwarzschild masih dalam dimensi 3+1, namun seiring dengan teori-teori terbaru yang menunjukkan bahwa alam semesta tidak hanya di dimensi 3+1. Maka melalui penambahan dimensi, tujuan penelitian ini memperoleh solusi pada geometri Schwarzschild untuk dimensi 4+1 dengan memodifikasi koordinat bola yang invarian rotasi isotropik dan melalui penurunan rumus seperti koordinat bola, simbol Christoffel, dan tensor Ricci. Selain mendapatkan solusi ini, metrik Schwarzschild dimensi 4+1 dapat digunakan sebagai metrik dasar untuk memperoleh solusi blackhole dan wormhole pada dimensi 4+1. Hasil akhirnya, dengan memanfaatkan modifikasi koordinat bola, metrik Schwarzschild dapat dibentuk sehingga diperoleh solusi geometri Schwarzschild untuk dimensi 4+1.
Keyword: metrik Schwarzschild, persamaan medan Einstein, modifikasi koordinat bola, penambahan dimensi, invarian rotasi isotropik