Judul: Relationship of Group Dynamics with Farm Sustainability (Case: Wanti Asih Farmers Group, Cibalung Village, Cijeruk Sub-District, Bogor District)
Abstrak: Usahatani berkelanjutan adalah kegiatan pertanian yang berorientasi pada keseimbangan dimensi ekonomi, dimensi ekologi dan juga dimensi sosial. Dinamika kelompok sangat menentukan berhasilnya keberlanjutan usahatani. Dinamika kelompok dipengaruhi oleh karakteristik petani yang akan menentukan tingkat kedinamisan kelompok. Tujuan dari penelitian ini adalah menganalisis dinamika kelompok pada kelompok tani dan hubungannya dengan karakteristik petani, menganalisis bentuk keberlanjutan usahatani dalam kelompok tani, dan menganalisis hubungan dinamika kelompok dengan keberlanjutan usahatani. Metode penelitian yang digunakan adalah metode kuantitatif melalui metode sensus dan didukung oleh data kualitatif dengan responden sebanyak 30 orang. Hasil penelitian menunjukkan tingkat dinamika kelompok dan keberlanjutan usahatani berada pada tingkat sedang kecuali indikator maksud terselubung yang berada pada tingkat rendah. Terdapat hubungan yang nyata antara tingkat pendapatan, dukungan penyuluhan, dan kemitraan dengan dinamika kelompok. Terdapat pula hubungan yang nyata antara variabel dinamika kelompok dengan keberlanjutan usahatani pada indikator keberlanjutan ekologi dan keberlanjutan sosial, namun terdapat hubungan tidak nyata pada indikator keberlanjutan ekonomi dengan dinamika kelompok. Kata kunci : dinamika kelompok, keberlanjutan usahatani, kelompok tani, Sustainable farming is an agricultural activity oriented to the balance of economic dimensions, ecological dimensions and also social dimensions. The group dynamics determine the success of agricultural sustainability. The group dynamics are influenced by the characteristics of farmers who will determine the level of dynamism of the group. The purpose of this study is to analyze the group dynamics in the farmer group and its relationship with the characteristics of farmers, analyze the form of sustainability of farming in the farmer group, and analyze the relationship of group dynamics with the sustainability of farming. The research method used is quantitative method through census method and supported by qualitative data with 30 respondents. The results showed the level of group dynamics and sustainability of farming was at a moderate level except for veiled intent indicators that were at low levels. There is a real relationship between income levels, counseling support, and partnerships with group dynamics. There is also a real relationship between the variable group dynamics and the sustainability of farming on the indicators of ecological sustainability and social sustainability, but there is an unreal relationship on the indicators of economic sustainability with the group dynamics. Keywords : farm sustainability, farmer group, group dynamics
Keyword: Dinamika Kelompok, Keberlanjutan Usahatani, Pertanian Berkelanjutan, Kelompok Tani, Group Dynamics, Farm Sustainability, Farmers Group, farm sustainability, farmer group, group dynamics

Judul: Dinamika Kelompok dan Diseminasi Informasi Urban Farming pada Kelompok Tani (Kasus di Kecamatan Pesanggrahan, Jakarta Selatan, DKI Jakarta)
Abstrak: Keterbatasan lahan merupakan salah satu permasalahan yang dihadapi oleh petani di Kecamatan Pesanggrahan, Jakarta Selatan. Oleh karena itu, terdapat upaya yang dilakukan pemerintah berupa diseminasi informasi mengenai program urban farming. Dalam menentukan keberhasilan kegiatan diseminasi informasi bergantung pada penerima informasi yaitu anggota kelompok tani. Tujuan penelitian ini yaitu untuk menganalisis hubungan dinamika kelompok dengan tingkat diseminasi informasi urban farming. Variabel dalam penelitian ini yaitu karakteristik anggota kelompok (X1), faktor-faktor dinamika kelompok (X2), dinamika kelompok (Y1), dan tingkat diseminasi informasi (Y2). Penelitian ini menggunakan tabulasi silang untuk menganalisis hubungan antar variabel. Hasil penelitian ini menunjukkan bahwa tidak terdapat korelasi antara karakteristik anggota kelompok dengan dinamika kelompok. Namun, terdapat korelasi antara faktor dinamika kelompok dengan dinamika kelompok dan dinamika kelompok dengan tingkat keberhasilan diseminasi informasi., Land limitation is one of the problems faced by urban farmers in Pesanggrahan District, South Jakarta. Therefore, there are efforts made by the government in the form of information dissemination regarding the urban farming program. In determining the success of information dissemination activities, it depends on the recipient of the information which is the member farmer groups. The purpose of this study is to analyze the relationship between group dynamics and the level of dissemination of urban farming information. The variables in this study were members characteristics (X1), group dynamics factors (X2), group dynamics (Y1), and level of information dissemination (Y2). This study used crosstab to analyze the relationship between variables. The results showed that there is no correlation between member groups characteristics and group dynamics. However, there is a correlation between group dynamics factors and group dynamics and the success rate of information dissemination.
Keyword: dissemination information, farmers group, group dynamics

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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