Judul: Difusi inovasi telepon seluler di perdesaan (kasus desa Kemang Bojongpicung, kabupaten Cianjur, provinsi Jawa Barat)
Abstrak: By referring to the diffusion of innovation theory, this study found that the adoption rates of mobile phone among the adopters in the two hamlets are low; it is about 28 per cent and 17 per cent for Beber and Cikupa hamlets respectively. Although the mobile phone exposure of Kemang Village community started about 15 years ago, the majority of people in Kemang Village adopted the mobile phone since the Base Transceiver Stations (BTS) of XL and Telkomsel were constructed in this village, in 2008 and 2010 respectively. The plot result of mobile phone adopter of the two hamlets was in S Curve shape. On the other hand, as not all the mobile phone adopters of the two hamlets were surveyed, the mobile phone adopters’ categories are not in normal distribution. It caused the plot of adopters categories is not in Bell-shaped curve. Therefore, the distribution of the mobile phone adopter categories did not support the theory of adopters’ category as stated by Rogers and Shoemaker (1971). However, this study supported another Rogers and Shoemaker’s generalization with regard to the fact that the individual characteristic of innovator category is higher than that of the other adopters’ categories. There are each four independent variables which significantly related to the rate of innovativeness as well as adoption rates at the significance level of 0.05. The independent variables which related to innovativeness rate were the level of relative advantage, the individual integration level, the formal educational level and the level of individual need toward the mobile phone innovation, while for the adoption rate were the level of observability, the interpersonal communication individual level, the meeting frequency, and the promotion of mobile phone agency/seller. There were five of nine mobile phone use patterns which developed dominantly by the adopters in the two hamlets, especially phone call/text messages to: the nucleus family (22,67 per cent) peer group and the combination of peer group and business partner, and distance relatives (each 17,33 per cent), only distance relatives (16 per cent), as well as phone call/text messages to business partner only, and the combination of nucleus family and peer group (each 9,33 percent). It seems that this mobile phone use patterns caused the irrational over adoption of mobile pone is dominant, especially for those who used the mobile phone only for consumptive activities.
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Judul: The  Relationship  between  The  Driving  Factors  of Adoption  with  Adoption  Level  of  internet  usage  methods (Case: Implementation of Desa Broadband Terpadu in Hanura Village, Teluk Pandan Subdistrict , Pesawaran Regency)
Abstrak: Banyak keuntungan yang ditawarkan oleh era revolusi industri 4.0 namun pada nyatanya masih terjadi kesenjangan digital antara pedesaan dan kota. Salah satu upaya pemerintah Indonesia untuk mengatasi hal tersebut dapat dilihat pada implementasi Desa Broadband Terpadu (DBT) di Desa Hanura. Penelitian ini bertujuan untuk mendeskripsikan faktor-faktor pendorong adopsi dan tingkat adopsi serta menganalisis hubungan faktor-faktor pendorong adopsi dengan tingkat adopsi cara penggunaan internet di pedesaan. Metode yang digunakan adalah metode penelitian survei dengan jumlah sampel sebanyak 30 warga desa yang memanfaatkan cara penggunaan internet dari implementasi DBT. Hasil uji korelasi menunjukkan pada karakteristik warga desa bahwa usia dan tingkat pendidikan yang berhubungan sedangkan jenis kelamin dan tingkat pendapatan tidak memiliki hubungan dengan tingkat cara penggunaan internet. Pada karakteristik inovasi hanya tingkat kemungkinan dicoba yang tidak memiliki hubungan sedangkan tingkat keuntungan relatif, tingkat kesesuaian, tingkat kerumitan dan tingkat kemungkinan diamati memiliki hubungan sangat nyata dengan tingkat cara penggunaan internet. Semua variabel dalam saluran komunikasi dan sistem sosial memiliki hubungan nyata dengan tingkat cara penggunaan internet. Kata kunci : Adopsi, Desa Broadband Terpadu, Inovasi, Internet, Pedesaan., Many advantages offered by industrial revolution 4.0 era but there is still a digital divide between rural and urban areas. One of the Indonesian government's efforts to address can be seen in the implementation of the Desa Broadband Terpadu (DBT) in Hanura Village. This study aims to describe the driving factors for the adoption level and the adoption level and to analyze the relationship between the driving factors and the adoption level of how to use the internet in rural areas. The method used is a survey research method with a total sample of 30 villagers who use the internet from the implementation of DBT. The results of the correlation test show that the characteristics of the villagers are that age and education level are related, while gender and income level have no relationship with the level of internet use. In the characteristics of innovation, only the level of probability of being tested has no relationship, while the level of relative advantage, the level of conformity, the level of complexity and the level of probability are observed to have a very real relationship with the level of internet usage methods. All variable of communication channels and social system has a real relationship with the level of internet usage methods. Keywords : Adoption, Desa Broadband Terpadu, Innovation, Internet, Rural Area
Keyword: Adoption, Desa Broadband Terpadu, Innovation, Internet, Rural Area

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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