Judul: Efektivitas Komunikasi Antar Etnis Betawi-Madura
Abstrak: Urbanisasi menyebabkan terjadinya perpindahan penduduk dari desa ke kota sehingga mengakibatkan terjadinya interaksi antar etnis, salah satunya antara Etnis Betawi dan Etnis Madura yang terjadi di Kelurahan Pulo Gadung, khususnya RT 08 RW 01. Oleh karena itu penelitian ini bertujuan untuk mengidentifikasi hambatan komunikasi antara Etnis Betawi dan Etnis Madura di Kelurahan Pulo Gadung, dan menganalisis hubungan hambatan komunikasi antara Etnis Betawi dan Etnis Madura dengan efektivitas komunikasi. Metode penelitian yang digunakan adalah metode survei dengan pedekatan penelitian kuantitatif yang didukung oleh data kualitatif. Jumlah responden dari penelitian ini sebanyak 52 orang yang terdiri dari 26 orang Etnis Betawi dan 26 orang Etnis Madura. Hasil penelitian ini menunjukkan bahwa terdapat hubungan pada hambatan komunikasi yang terjadi antara Etnis Betawi dengan Etnis Madura, yaitu pada tingkat individualitas-kolektivitas, keadaan keanggotaan dalam kelompok sosial, keadaan identitas sosial, dan sikap terhadap lingkungan fisik.
Keyword: Urbanisasi, Hambatan komunikasi, Efektivitas komunikasi

Judul: Efektivitas Komunikasi Antar Etnis. Kasus: Etnis Arab Dan Etnis Sunda Di Kelurahan Empang, Bogor Selatan
Abstrak: This study is focused on the effectiveness of communication between two different ethnics: Arabic and Sundanese. The objective of the study was to determine 1) to what extent is the correlation between the communication motivation and its effectiveness in inter-ethnic communication, 2) to what extent is the correlation between communication knowledge and its effectiveness in inter-ethnic communication, and 3) to what extent is the correlation between communication skill and its effectiveness in inter-ethnic communication. The research showed that the communication motivation was related to the effectiveness of communication between the Arabic and Sundanese ethnics. The higher the motivation, the lower was the feeling of being offended and awkward during interaction. Of the four dimensions, need to avoid diffuse anxiety obtained the highest value. Both ethnics can avoid offended and awkward feeling because they feel save when communicating each others. The knowledge of communication was also correlated to the effectiveness of communication. The higher the knowledge of communication, the lower was the feeling of being offended and awkward as indicated during interaction. Of the four dimensions, the knowledge to collect or get information obtained the highest value. Both ethnics have a good knowledge of the other speakers ways of communication by looking at and interacting directly. Communication skill was also correlated to the effectiveness of communication between the ethnic groups. The higher the communication skill, the lower was the feeling of being offended and awkward as indicated during interaction. The skill to adapt behavior got the highest value. The adapted skill was seen as the Arabic and Sundanese favored to use understandable forms of language to avoid offense and awkwardness during interaction.
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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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