Judul: Pengaruh In-store Promotion terhadap Tingkat Penjualan Toserba ABC Cipayung Bogor
Abstrak: Toserba ABC mengalami fluktuasi pada nilai penjualan. Bentuk promosi yang dilakukan oleh Divisi Market Toserba ABC yaitu in-store promotion berupa sales promotion, store display, dan personal selling. Tujuan penelitian ini untuk mengidentifikasi bentuk in-store promotion yang dilakukan oleh Toserba ABC dan menganalisis pengaruh in-store promotion terhadap tingkat penjualan. Jenis data yang digunakan yaitu data primer yang diperoleh dari hasil wawancara dan observasi mengenai gambaran umum perusahaan serta kegiatan in-store promotion yang dilakukan dan data sekunder diperoleh dari studi literatur, penelitian terdahulu, jurnal, internet, serta dokumen-dokumen perusahaan. Metode analisis data yang digunakan adalah analisis regresi linear berganda, Uji F dan Uji t. Hasil penelitian menunjukkan bahwa sales promotion, store display, dan personal selling secara secara simultan berpengaruh signifikan terhadap tingkat penjualan pada Divisi Market Toserba ABC Cabang Cipayung Bogor. Di sisi lain, secara parsial hanya sales promotion yang berpengaruh terhadap tingkat penjualan.
Keyword: in-store promotion, penjualan, regresi linear berganda

Judul: Pengaruh In-store Promotion terhadap Tingkat Penjualan PT. XYZ Bogor
Abstrak: Growth of electronic and furniture retail outlets in indonesia has increased rapidly. PT. XYZ Bogor is a retailer of electronics and furniture. One of the promotions conducted by PT. XYZ Bogor is in-store promotion. The purpose of this research is to identify the form of in-store promotion applied to PT. XYZ Bogor and analyze the effect of in-store promotion to the level of sales of PT. XYZ Bogor. The independent variable in this research is in-store promotion, which has three indicator variables, sales promotion, store display, and personal selling. Based on result of F test, in-store promotion has influence to levels of sales. The value of R square shows that 48,3 % diversity of independent variable (in-store promotion) can be explained by the dependent variable (sales rate). If partially tested, variables sales promotion and store display has a significant influence on the level of sales, while the personal selling do not affect significantly the level of sales. The value of the coefficient of sales promotion is 53,101, while the variables that have the greatest influence is store display with coefficients of 52,217.
Keyword: sales levels., multiple linear regression, in-store promotion

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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