Judul: Jaringan Komunikasi Dan Kohesivitas : Kajian Iklim Kelompok  Dan Aplikasi Pengendalian Organisme Pengganggu Tanaman  (OPT) Ramah Lingkungan Di Desa Purwasari Bogor, Jawa Barat
Abstrak: Kelompok seringkali memegang kunci penting dalam rangka fasilitasi anggota kelompok untuk berperilaku tettentu seperti aktivitas pengendalian organisme pengganggu tanaman dalam budidaya padi sawah. Penelitian ini berusaha untuk mengidentifikasi jaringan komuuikasi dau kohesivitas, mengidentifikasi iklim kelompok yang terbentuk, menjelaskan aplikasi pengendalian Organisme Pengganggu Tanaman (OPT) ramah lingkungan pada budidaya sawah oleh kelompok, meiiganalisis hubungan antara jasingan komunikasi dan kohesivitas dengan iklim kelompok, serta menganalisis hubungan antara iklim kelompok dengan aplikasi pengendalian Organisme Pengganggu Tanaman (OPT) ramah lingkungan pada budidaya sawah yang dilakukan oleh anggota Kelompok Tani Mekar Sari.
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Judul: Gaya Komunikasi Pemimpin dan Keefektifan Kelompok Tani dalam Melaksanakan Program Konservasi Tanah dan Air Kasus Di DAS Ciliwung Hulu, Kecamatan Cisarua, Bogor
Abstrak: Generally, soil and water conservation program in Indonesia generally and in Upper Ciliwung Watershed especially, put a farmers group as executor in the fields. Considering this situation, the key success factor for soil and water conservation measures is how far effectiveness of farmers group in executing these activities. The objective of this research are: (1) to identify farmers group effectiveness in executing soil and water conservation activities; (2) to analyze a relationship between communications style of farmers group leader and farmer group’s effectiveness in executing soil and water conservation measure; (3) to analyze a relationship between communication style of farmers group leader and a maturity and characteristics of farmers group members. This research was designed as descriptive co relational. Primer data was collected through interviewed to four farmers group members in four villages in Cisarua Sub District in Bogor Regency with 161 respondents. The collected data were analyzed by Correlation Spearman Test. The main results of this research show: (1) the farmer groups in Upper Ciliwung have a good effectiveness; (2) communication style of the farmers groups leader are tend to linier; and (3) farmer groups members are paternalistic performance. Convergence communication style conducive for achieving farmer groups’ effectiveness. Convergence communication style of farmer group’s leader tend to be applied in the maturity of farmer groups members. This communication style able to promote farmer groups participation in conservation activities. The farmer group leaders tend to apply convergence communication style when: (1) member of farmer groups have a good income; (2) member of farmer groups use convergence communication; and (3) member of farmer groups have several jobs, which need certain skill.
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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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