Judul: The Relationship between Perceived Organizational Effectiveness with Perceived Program Success (study case: Gapoktan Lestari, Bulakpacing Village, Dukuhwaru Sub-distric, Tegal District).
Abstrak: Organisasi Gapoktan Lestari adalah suatu wadah yang memfasilitasi kelompok tani Desa Bulakpacing untuk bekerjasama dalam meningkatkan usaha pertanian. Dalam menanggapi hal ini, Gapoktan Lestari telah membuat berbagai program, salah satunya Program Budi Daya Padi Sehat. Program ini telah dilaksanakan secara swadaya oleh Gapoktan untuk menekan penggunaan pupuk kimia dan peniadaan pestisida kimia serta menekan modal bagi petani. Tujuan dari penulisan ini adalah untuk menganalisis efektivitas organisasi, keberhasilan program dan hubungan antara efektivitas organisasi dengan keberhasilan program. Penelitian ini dilakukan di Desa Bulakpacing, Kecamatan Dukuhwaru, Kabupaten Tegal. Responden yang ditetapkan berjumlah 35 orang melalui metode sensus. Penelitian ini didukung dengan wawancara mendalam kepada informan dipilih secara sengaja. Analisis data dilakukan secara deskriptif dan uji korelasi Rank Spearman. Hasil penelitian menunjukkan bahwa terdapat hubungan yang nyata antara persepsi efektivitas organisasi dan persepsi keberhasilan program., The Gapoktan Lestari organization is a forum for facilitates farmer groups in Bulakpacing Village to cooperate in improving agricultural businesses. In response to this, Gapoktan Lestari has made various programs, one of which is The Healthy Rice Cultivation Program. This program has been implemented independently by Gapoktan to reduce the use of chemical fertilizers and eliminate chemical pesticides also to reduce the agricultural capital cost. The purpose of this study is to analyze organizational effectiveness, program success and the relationship between organizational effectiveness and program success. This research was conducted in Bulakpacing Village, Dukuhwaru District, Tegal Regency. The repsondents of this study number 35 people determined by census method. This research is supported by in-depth interviews with purposively selected informants. Data analysis was done descriptively and correlation test Rank Spearman. The results showed that there is a real relationship between perceived organizational effectiveness and perceived program success.
Keyword: organization, organizational effectiveness, program success, keberhasilan program, efektivitas organisasi, organisasi

Judul: Efektivitas Kepemimpinan Gapoktan Mekar Sejahtera dalam Peningkatan Kedinamisan Kelompok Tani di Desa Cipelang Bogor
Abstrak: Improving dynamics of farmer groups can be supported by various factors, includes the characteristics of the group members, the Gapoktan programs, and the leadership effectiveness. The purpose of this study is to identify the characteristics of the members, analyze what programs are implemented, analyze the level of effectiveness of Gapoktan, and the relationship with the dynamic level of the farmer group members of Gapoktan. There are three farmers groups in this studied, named Mekar Sejahtera, Mekar wangi, and Harapan Sejahtera. The technique used in this study are quantitative and qualitative. The result show that amongst the three farmers groups. The differences in terms of their speciality, horticulture (Mekar Sejahtera), processing the holticulture products (Mekar Wangi),, and rice fields (Harapan Sejahtera). However, from the corelation test shows that there is no correlation between the characteristics of member, the Gapoktan programs, and the effectiveness of leadership with the dynamic level of the farmer group members of Gapoktan.
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Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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