Judul: Dampak Aktivitas Produksi Tambang Semen Tonasa terhadap Perubahan Tingkat Kesejahteraan Masyarakat Kabupaten Pangkajene dan Kepulauan
Abstrak: Indonesia's population growth has increased. This increase was not followed by the addition of the amount of area available on earth. Around 237 641 326 Indonesian people now have to rely on the environment that will animate them. Became one of the industry's growth efforts for the country to be able to improve the welfare of its people. Results from this study showed that the difference Based Wilcoxon test, there were no significant differences in welfare conditions before and after the cement maker, Z = -0.089; p> 0.05, which means that the presence of these companies do not improve the welfare of the community objective. Based on the results of Spearman Rank correlation there is a significant correlation between changes in the agrarian structure and the level of prosperity in the preconstruction period (20 years), r (41) = 0,030; p <0.05, and the correlation between the two was significant (p <0.05). The condition of public welfare changes caused by changes in the agrarian structure which occurred before the company operates so as to encourage changes in the landscape and community involvement.
Keyword: Bogor Agricultural University, the level of welfare, agrarian structure, People around the mine

Judul: Dampak Industri Pertambangan Emas Tanpa Izin terhadap Kehidupan Sosial dan Ekonomi Gurandil (Kasus Desa Pangkal Jaya, Kecamatan Nanggung, Kabupaten Bogor)
Abstrak: Rural industrialization was synergy in order to promote the economic empowerment of rural farmers.Various changes that occur in response to industrial development and the accompanying impact will vary depending on a subjective definition of the affected private interests and social values of the society. The impact of the mining industry can affect people's lifestyles countryside views of change aspects activities, interests, and one person's opinion. The method used in this study is a randomized method (simple random sampling) and using the Spearman rank to analyze the relationship between variables. The results of this study is the impact of the mining industry seen from the change rate of employment become illegal miners. There is a moderate positive relationship between the impact of the mining industry to the community because the community's response to the changes lofty views of employment, the level of expenditure and income level. Likewise with the public response to the lifestyle there is a positive relationship are due to changes in lifestyle society.
Keyword: Bogor Agricultural University, community response, lifestyle, mining, industry

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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