Judul: Hubungan perilaku komunikasi dengan pemahaman petani terhadap fungsi radio komunitas (kasus radio komunitas petani trisna alami. desa Kaliagung, kecamatan Sentolo, kabupaten Kulon Progo, provinsi D.I Yogyakarta)
Abstrak: Community radio plays role as advocate of social change at the community level. “Trisna Alami” community radio was one kind of radio-based or sector-specific issues, that was built by a community from the same interests about agricultural issues. Typology of Trisna Alami community radio listeners consist of the selective and a passive listener. Trisna Alami community radio broadcasted agricultural information and entertainment. The functions of community radio are not only as an entertainer and educators, but also as community empowerment. Communication behavior in this research were: interpersonal channels exposure, cosmopoliteness, contact with extension agent, the other mass media exposure, and community radio exposure. The purposes of this research were to investigate and analyze the relationship between communication behaviors and farmers understanding of the community radio’s function. The research was designed by explanatory type. The sample in this research has done by simple random sampling. The total respondents were 40 persons. Respondents was chosen by judgement sampling. Techniques of data collection were using questionnaires, interviews, and observation. The result of this research showed that community radio’s exposure consist of frequency and duration of Trisna Alami Community Radio listened connected with farmer’s understanding the functions of community radio such as: an internal communication, public education and religious facilities, and also public sphere. The indicators of communication behaviors were not all connected with the third function of community radio.
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Judul: Hubungan Perilaku Komunikasi dengan Pemahaman Petani terhadap Fungsi Radio Komunitas (Kasus Radio Komunitas Petani Trisna Alami Desa Kaliagung, Kecamatan Sentolo, Kabupaten Kulon Progo, Provinsi D.I Yogyakarta).
Abstrak: Community radio plays role as advocate of social change at the community level. “Trisna Alami” community radio was one kind of radio-based or sector-specific issues, that was built by a community from the same interests about agricultural issues. Typology of Trisna Alami community radio listeners consist of the selective and a passive listener. Trisna Alami community radio broadcasted agricultural information and entertainment. The functions of community radio are not only as an entertainer and educators, but also as community empowerment. Communication behavior in this research were: interpersonal channels exposure, cosmopoliteness, contact with extension agent, the other mass media exposure, and community radio exposure. The purposes of this research were to investigate and analyze the relationship between communication behaviors and farmers understanding of the community radio’s function. The research was designed by explanatory type. The sample in this research has done by simple random sampling. The total respondents were 40 persons. Respondents was chosen by judgement sampling. Techniques of data collection were using questionnaires, interviews, and observation. The result of this research showed that community radio’s exposure consist of frequency and duration of Trisna Alami Community Radio listened connected with farmer’s understanding the functions of community radio such as: an internal communication, public education and religious facilities, and also public sphere. The indicators of communication behaviors were not all connected with the third function of community radio.
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Judul: Sintesis Biphasic Calcium Phosphate-High Density Polyethylene Scaffold
Abstrak: Biphasic Calcium Phosphate (BCP) - High Density Polyethylene (HDPE) scaffold has been synthesized by using raw material from the shells of green mussels as a source of calcium to synthesize BCP. The shells are calcined at a temperature of 1000 °C for 5 hours to form a single phase of CaO. Ca(OH)2 is formed through the binding of H2O by CaO. CaO and Ca(OH)2 is reacted with P2O5 through milling process at a speed of 600 rpm for 6 hours and sintering process at a temperature of 900 °C for 3 h. The BCP resulted from these processes is a composition of 47,80% hydroxyapatite (HAp), 44,60% β-tricalcium phosphate (β-TCP) and 7,600% impurity of Ca(OH)2. This composition value is obtained by manual calculated using the direct comparison method based on XRD data. The lattice parameter of HAp is a = 9,436 Å and c = 6,906 Å, and lattice parameter of β-TCP is a = 10,44 Å and c = 37,45 Å. BCP has 1,244 to 2,723 of Ca/P ratio. BCP crystal grains become more homogeneous after sonication process. Milling process is performed on a rotary speed of 1325 rpm for 20 minutes result in a homogeneous BCP in the HDPE matrix. The increasing of sonication time and used BCP will increase scaffold hardness value.
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