Judul: Partisipasi masyarakat dalam program pengelolaan sampah (Kasus implementasi Corporate Social Responsibility PT Indocement Tunggal Prakarsa Tbk. di Desa Gunung Sari, Kecamatan Citeureup, Kabupaten Bogor)
Abstrak: This research wanted to see level of community participation in trash management program, the second goal is to identify the factors that determine the level of community participation in trash management program, and the last goal is to analyze the correlation of community participation with program’s effectivity. Quantitative approach that used in this research is survey method. The research populations are people at RW 4, Gunung Sari Village, district Citeureup, Bogor. Respondent of this research about 50 persons are chosen by random technique with same amount of each RT. The results showed the level of community participation at the stage of tokenism. The factors that have a significant correlation with the level of community participation is the willingness and ability, while the opportunity has no significant correlation with level of community participation in trash management. Participation level have correlation with program’s effectivity, more higher the level of participation will increasing program’s effectivity.
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Judul: Partisipasi masyarakat dalam pengelolaan sampah rumah tangga (kasus Kampung Sengked, rt 03/rw 03 Desa Babakan, Kecamatan Dramaga, Kabupaten Bogor)
Abstrak: Banyak kali aktivitas manusia menyebabkan pencemaran dan kerusakan lingkungan. Salah satu masalah lingkungan yang paling penting adalah limbah rumah tangga. Untuk mengatasi hal ini permasalahan tersebut diperlukan peran serta seluruh masyarakat. Tujuan penelitian ini adalah: 1) mengetahui partisipasi masyarakat dalam pengelolaan sampah rumah tangga, 2) mengetahui menganalisis hubungan antara tingkat partisipasi masyarakat dengan faktor individu serta hubungan antara tingkat partisipasi masyarakat dengan lingkungan hidup faktor. Penelitian ini dilakukan di Desa Sengked berdasarkan metode survei dengan jumlah 30 orang responden. Hasil penelitian menunjukkan bahwa tingkat partisipasi dalam pengelolaan rumah tangga adalah rendah pada tahap perencanaan, tahap pelaksanaan, serta tahap pembagian manfaat. Di sana tidak ada korelasi antara partisipasi masyarakat dan faktor individu, maupun hubungan antara partisipasi masyarakat dan faktor individu korelasi antara partisipasi masyarakat dan faktor lingkungan. Tampaknya tingkat partisipasi lebih ditentukan oleh kepemimpinan masyarakat.
Keyword: Community participation, Community participation, Leadership, Household waste management

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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