Judul: Perilaku Remaja dalam Mendengarkan Radio Komunitas (Kasus Pendengar BeTe Radio di Kelurahan Tegal Gundil, Kecamatan Bogor Utara, Kota Bogor, Provinsi Jawa Barat)
Abstrak: This research aimed to analyze the relation between teenager behaviors on community radio listening activity. This research goals are (1) to identify the pattern of listening activity on community radio among teenager (2) to analyze the relation between listeners characteristics and broadcast format assessment by listening community radio (3) to analyze the relation between community radio listeners pattern with the teenager behaviors, and (4) to identify the listeners expectations towards community radio. The main method of this research is quantitative approach, and qualitative approach as supporting. Research and observationshow that the teenagers who are listening to the BeTe community radio have low level of listening activity pattern. Affective level and social network were also relatively low. Related to the listeners characteristics, the research result showed that gender does not have any relation with the pattern of radio listening activity. Beside that, age, media ownership, and main activities have significant relation towards pattern of radio listening activity. To assess broadcast format variable, pshycological proximity does not have any relation significantly with the pattern of radio listening activity. In the pattern of radio listening activity variable which is consist of listening frequency, listening duration, program choices, participation on the program have significant relation with to point of view, affective, and social network of BeTe Radio listeners.
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Judul: Pengaruh Program Siaran Radio Pertanian Ciawi Bagi Pendengarnya (Kasus Pendengar di Desa Cileungsi, Kecamatan Ciawi, Kabupaten Bogor)
Abstrak: This research aimed to analize the influence of radio programs towards listeners. These research goals are: (1) to analyze listeners exposure towards radio programs and it’s assessment towards radio programs (2) to analyze factors that effect radio programs exposures towards listeners and the assessment of radio programs by listeners (3) to analyze the influence of radio programs towards listeners and factors that influencing it. The result show that listeners exposure towards radio programs and it’s assessment towards radio programs were influenced by listeners characteristic. Among several variables of listeners characteristic that have significant relation towards radio programs exposure is mass media ownership with listening duration. Meanwhile, listeners characteristics which have a relation with listeners assessment towards radio programs are mass media ownership with the assessment of radio broadcasting material, the announcer, and the duration of the programs, the age of listeners and it’s assessment towards the radio programs are broadcasted, listeners occupation and it’s assessment towards radio broadcasting material and how its been presented. The results also shows that the radio programs that have been broadcasted gave several effects. The Effect of radio programs towards listeners are the increasing of cognitive and affective aspects.
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Judul: Pembuatan Glukosamin Hidroklorida (GlcN HCl) dari Kitin Karapas Udang dengan Metode Autoklaf
Abstrak: Glucosamine is one of the amino sugar compound that found in cartilage and has a very important role for the health and joint flexibility. Glucosamine is a kind of supplements that are marketed extensively in the form of chloride or sulfate. Glucosamine produces sinovyal fluid and prevents bone destruction. Production of glucosamine hydrochloride from chitin was carried out through a simple hydrolysis and depolymerization. Glucosamine was extracted at pressure 0.5 atm with the HCl concentration 10%, 15%, 20% and 25%. The best of Glucosamine was treated using 0.5 atm pressure and HCl 15% for 120 minutes. The Glucosamine from this treatment showed the greatest solubility test result 60%, yield 77.4%, LOD 1 % and the melting point is 190-195°C. FTIR results also showed that glucosamine has -OH, N-H and C-N.
Keyword: pressure, hydrolysis, HCl, glucosamine, chitin