Judul: Faktor sosial ekonomi khalayak yang mempengaruhi persepsi terhadap acara siaran radio : Kasus di kelurahan Tegallega Kotamadya Bogor Propinsi Jawa Barat
Abstrak: Teknologi komunikasi massa pada masa sekarang ini sudah sangat maju berkembang, baik secara program maupun peralatan tekniknya. Informasi merupakan suatu kebutuhan yang perlu diterima oleh khalayak dalam rangka mengikuti perkembangan informasi yang semakin maju dan bervariasi. Semakin banyaknya informasi maka dituntut adanya persamaan persepsi antara pembuat program dengan penerima pesan. Berbagai media massa terlibat dalam menyebarkan beragam informasi, termasuk radio sebagai media informasi yang dimiliki oleh khalayak. Persepsi terhadap acara siaran radio yang berbeda antara individu yang satu dengan individu lainnya sesuai dengan selera yang dimilikinya. Tujuan penelitian ini adalah mengetahui persepsi masyarakat tentang acara siaran radio. Penelitian ini kasus di Kelurahan Tegallega Kotamadia Bogor Propinsi Jawa Barat pada tanggal 15 Desember 1993 sampai 12 Pebruari 1994. Penelitian ini juga ingin mengetahui faktor sosial ekonomi khalayak yang mempengaruhi bentuk persepsi khalay- ak dilihat dari keadaan sosial ekonominya. ...
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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: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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