Judul: Layanan Pesan Pendek Sebagai Media Komunikasi Pembangunan Pertanian Di Kabupaten Karawang
Abstrak: Penerapan teknologi informasi dan komunikasi (TIK) saat ini telah terintegrasi dengan pembangunan pertanian. Teknologi informasi dan komunikasi seperti telepon seluler telah digunakan dalam kegiatan pembangunan pedesaan. LISA merupakan sebuah program inovatif yang bertujuan untuk memberikan layanan pertanian terpadu mencakup layanan tips pertanian, layanan tanya jawab interaktif, dan layanan iterasi keuangan keluarga yang berbasis layanan pesan pendek telepon seluler. Penelitian ini mempunyai tujuan utama untuk mengetahui sejauh mana efektivitas LISA sebagai media diseminasi informasi pertanian yang berbasis layanan pesan pendek berperan dalam pembangunan pertanian. Sedangkan tujuan khusus penelitian ini antara lain: 1) Mendeskripsikan keterdedahan pengguna terhadap LISA; 2) Menganalisis hubungan karakteristik petani dan faktor eksternal dengan keterdedahan terhadap LISA; 3) Menganalisis hubungan keterdedahan terhadap LISA dengan efektivitas komunikasi LISA; dan 4). Menganalisis hubungan interaksi dengan sumber informasi lain dengan efektivitas komunikasi LISA.bagaimana efektivitas LISA sebagai media penyebaran informasi pertanian Penelitian didesain sebagai penelitian survey yang bersifat deskriptif korelasional. Penelitian dilakukan di Kabupaten Karawang pada bulan Mei 2015 sampai dengan Juni 2015. Metode pemilihan sampel yang digunakan dalam penelitian ini menggunakan Multiple Stage Sampling. Tahap pertama, pemilihan kecamatan yang dijadikan subpopulasi. Kecamatan yang terpilih untuk dijadikan subpopulasi adalah Kecamatan Pangkalan, Kecamatan Jatisari, Kecamatan Karawang Timur, dan Kecamatan Pedes. Tahap kedua, pemilihan responden dilakukan secara accidental sampling. Berdasarkan perhitungan menggunakan rumus Slovin didapatkan responden sebanyak 100 orang. Analisis data dilakukan dengan menggunakan analisis deskriptif korelasional dan SEMpls. Hasil penelitian menunjukkan bahwa luas lahan budidaya responden secara signifikan mempengaruhi keterdedahan terhadap LISA. Faktor eksternal tidak berpengaruh secara signifikan terhadap keterdedahan LISA. Keterdedahan terhadap LISA berpengaruh secara nyata terhadap efektivitas komunikasi. Interaksi dengan sumber informasi lainnya tidak berpengaruh signifikan terhadap efektivitas komunikasi.
Keyword: layanan pesan pendek, keterdedahan terhadap LISA, efektivitas komunikasi

Judul: Analisis efektivitas komunikasi model prima tani sebagai diseminasi teknologi pertanian di Desa Citarik Kabupaten Karawang Jawa Barat
Abstrak: This research is aiming to know the analyze of Prima Tani model communication effectiveness as a agricultural technology disseminations in Citarik Village, Karawang Region, West Java Province. The analyze was formed to find out personal characteristics, community of farmer institutions, accessibility, essential and support factors in agricultural development, Prima Tani communication media, Prima Tani communication effectiveness in agricultural business (planting rice) development model. This research was designed as a correlated descriptive survey and using cluster random sampling method for 80 farmer respondents. The analyze of correlations were done by rank Spearman and chi-square. The results of research are: age, formal education, non-formal education, farming experience, average income, agricultural business status, land usage, interpersonal communication farming orientations, and farmer status that personal characteristics as an internal factors have a highly significant correlation with spread out technology and Prima Tani clinic in usefull of communication media. Spread out technology and Prima Tani clinic in usefull of communication media have a significant correlation with external factors. The usefull of communication media have a highly significant correlation with Prima Tani communication effectiveness in agricultural business development model, except affective. Internal factors have a significant correlation to Prima Tani communication effectiveness in agricultural business development model, except affective. External factors have a significant correlation to Prima Tani communication effectiveness in agricultural business model
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Judul: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
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