Judul: (Kasus: Masyarakat Gang Cikapundung RW.08 Kampung Braga,  Kelurahan Braga, Kecamatan Sumur Bandung,  Kota Bandung, Jawa Barat)
Abstrak: Corporate Social Responsibility saat ini menjadi isu penting bagi perusahaan. Tanggung jawab sosial perusahaan atau corporate social responsibility dikenal sebagai sebuah bentuk kepekaan perusahaan kepada masyarakat untuk mendapatkan kualitas hidup yang lebih baik. Penelitian ini bertujuan menganalisis tingkat keberhasilan program corporate social responsibility, menganalisis taraf hidup masyarakat dengan adanya program corporate social responsibility, serta menganalisis hubungan tingkat keberhasilan program corporate social responsibility dengan taraf hidup masyarakat. Penelitian ini menggunakan pendekatan mix methods. Tahap kuantitatif diperoleh dengan metode survei menggunakan kuesioner kepada responden, sedangkan tahap kualitatif dilakukan dengan wawancara mendalam kepada informan dan observasi lapang. Responden dalam penelitian ini yaitu 60 responden dengan teknik stratified random sampling dan informan ditentukan menggunakan teknik snowball. Hasil dari penelitian ini menunjukkan bahwa Tingkat keberhasilan program memiliki hubungan yang berarti dan signifikan dengan taraf hidup masyarakat di Gang Cikapundung RW.08 Kampung Braga., Corporate Social Responsibility is currently an important issue for companies. Social responsibility or corporate social responsibility is known as a form of corporate sensitivity to the community to get a better quality of life. This study aims to analyze the success rate of corporate social responsibility programs, analyze living standards the community with the existence of corporate social responsibility programs, as well as analyzing the relationship between the success rates of corporate social responsibility programs and the standard of living of the community. This research uses a mixed methods approach. The quantitative stage was obtained by using a survey method using questionnaires to respondents, while the qualitative stage was carried out by in-depth interviews with informants and field observations. Respondents in this study were 60 respondents with stratified random sampling technique and the informants were determined using the snowball technique. The results of this study indicate that the success rate of the program has a significant and significant relationship with the standard of living of the people in Gang Cikapundung RW.08 Kampung Braga.
Keyword: Corporate Social Responsibility, People Standard of Living, Success Rate

Judul: The Relationship between PT Tirta Investama Subang's CSR Program Performance and the Community's Standard of Living (The Case of the Banceuy Traditional Village, Sanca Village, Ciater District, Subang Regency, West Java Province).
Abstrak: Program CSR dilaksanakan dalam pemberdayaan masyarakat, harapannya program CSR meningkatkan taraf hidup masyarakat. Salah satu perusahaan yang melaksanakan program CSR adalah PT Tirta Investama Subang. Tujuan penelitian menganalisis kinerja program CSR, menganalisis taraf hidup masyarakat setelah adanya program CSR berdasarkan lapisan sosial dan menganalisis hubungan kinerja program CSR dengan taraf hidup masyarakat, dengan pendekatan mix methods. Tahap kuantitatif diperoleh dengan metode survei menggunakan kuesioner, sedangkan tahap kualitatif dilakukan dengan wawancara mendalam. Jumlah responden penelitian 60 responden ditentukan secara purposive. Hasil penelitian menunjukan hubungan kinerja program CSR dengan taraf hidup masyarakat di Kampung Adat Banceuy memiliki hubungan yang signifikan pada kategori moderat atau cukup kuat antara kedua variabel artinya tingkat kinerja program CSR memiliki dampak cukup kuat terhadap taraf hidup masyarakat di Kampung Adat Banceuy., The CSR program is implemented in community empowerment, it is hoped that the CSR program will improve people's lives. One of the companies implementing CSR programs is PT Tirta Investama Subang. The aim of the research is to analyze the performance of the CSR program, to analyze the standard of living of the community after the CSR program is based on social strata and to analyze the relationship between the performance of the CSR program and the standard of living of the community, using a mix methods approach. The quantitative stage was obtained by survey method using a questionnaire, while the qualitative stage was carried out by in-depth interviews. The number of research respondents was 60 respondents determined purposively. The results showed that the relationship between the performance of the CSR program and the standard of living of the people in Banceuy Traditional Village had a significant relationship in the moderate category or quite strong between the two variables, meaning that the level of performance of the CSR program had a fairly strong impact on the standard of living of the people in Banceuy Traditional Village.
Keyword: CSR, performance, social division, standard of living

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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