Judul: Index construction for functional relevance of information in farm magazines
Abstrak: Most of the twenty items constructed to measure functional relevance of information in farm magazines discriminated between two articles selected to represent high and low functional relevance and has a surprisingly high reliability (α=.96). However, a factor analysis not only failed to confirm the dimension of functionally relevant information but also did not yield a clearly definable factor structure. Lacking a clear factor structure, it is difficult to recommend practical use of the index without further research. Some of the research needed concerns application of the method by larger groups of respondents. With such an expansion of data gathering, replication of the statistical analysis might lead to a firmer conclusion.
Keyword: Farm according;, Reliability;, Ruber smallholder;, Bogor Agricultural University;

Judul: The Information Needs Levels and Internet-based Media Usage Levels of Urban Farmers.
Abstrak: The limited number of extension agents who guide the community in implementing urban farming encourages the community to utilize various information sources to fulfill their information needs. The current development of internet-based media provides easy access to urban farming information without being limited by space and time. This research aims to analyze the relationship between the level of information needs and the internet-based media usage level by urban farmers. This research used censuthe s method by distributing questionnaires to 33 members of the urban farming group in the "Buruan Sae" program in RW 02 and RW 04, Cipamokolan Village, Rancasari District, Bandung City. The research shows that there is a relationship between the need for urban farming information and the use of internet-based media, where the higher the need level of cultivation information, the greater the variety of internet-based media used, the higher the frequency of YouTube and the Ministry of Agriculture website usage, and the higher the duration Ministry of Agriculture website and E-commerce platform usage. In addition, the higher the need level of product processing information, the higher the duration of Facebook usage., Keterbatasan jumlah penyuluh yang membina masyarakat dalam pelaksanaan urban farming, mendorong masyarakat untuk memanfaatkan barbagai sumber guna memenuhi kebutuhan informasi dalam mendukung kegiatan urban farming yang dilakukannya. Perkembangan media berbasis internet saat ini memberikan kemudahan akses informasi urban farming tanpa terbatas ruang dan waktu. Tujuan dari penelitian ini adalah menganalisis hubungan tingkat kebutuhan informasi dengan tingkat penggunaan media berbasis internet dalam pencarian informasi urban farming. Penelitian ini menggunakan metode sensus dengan menyebarkan kuesioner kepada 33 anggota kelompok urban farming pada program “Buruan Sae” di RW 02 dan RW 04, Kelurahan Cipamokolan, Kecamatan Rancasari, Kota Bandung. Hasil penelitian menunjukkan bahwa terdapat hubungan antara kebutuhan informasi urban farming dengan penggunaan madia berbasis internet dimana semakin tinggi kebutuhan informasi budidaya, maka semakin banyak ragam media berbasis internet yang digunakan, semakin tinggi frekuensi penggunaan Youtube dan situs Kementan, serta semakin tinggi durasi penggunaan situs Kementan dan platform E-commerce. Selain itu, semakin tinggi kebutuhan informasi pengolahan hasil maka semakin tinggi durasi penggunaan Facebook.
Keyword: information needs, internet media, urban farming, kebutuhan informasi, media internet

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.
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