Judul: Analisis Faktor-Faktor yang Mempengaruhi Keputusan Pembelian Sayuran Organik di All Fresh Cilandak dan Total Buah Segar Thamrin
Abstrak: Ketersediaan produk sayuran organik di Jakarta yang bisa ditemui pada pasar modern, dapat menyadarkan masyarakat dalam mengkonsumsi sayuran organik untuk meningkatkan pola hidup yang lebih sehat. Tujuan dari penelitian ini adalah menganalisis karakteristik konsumen, menganalisis proses keputusan pembelian, dan menganalisis faktor-faktor yang mempengaruhi keputusan pembelian sayuran organik di All Fresh Cilandak dan Total Buah Segar Thamrin. Metode yang digunakan dalam penelitian ini adalah analisis deskriptif dan analisis faktor dengan bantuan software IBM SPSS Statistics for Windows 21. Analisis deskriptif digunakan untuk menggambarkan karakteristik konsumen dan proses keputusan pembelian. Analisis faktor digunakan untuk menganalisis faktor-faktor yang mempengaruhi keputusan pembelian. Penelitian ini menghasilkan enam faktor baru yang mempengaruhi keputusan pembelian konsumen sayuran organik di Jakarta yaitu kualitas produk, gengsi, kesan terhadap produk, kondisi individu, daya tarik toko, dan pengaruh kerabat.
Keyword: analisis deskriptif, analisis faktor, keputusan pembelian, sayuran organik

Judul: Analisis Faktor dan Proses Pengambilan Keputusan Pembelian Sayuran Organik di Yogya Bogor Junction
Abstrak: Healthy lifestyles be sensitive issues in the food industry. People realize that the use of chemicals non-natural, in agricultural production turns out to have a negative impact on human health and the environment. A factor of health being one of the reasons why consumers, consume organic food one of them by ingestion of organic vegetables. Research aimed at analyzing characteristic of consumers, the process of a decision to buy organic vegetables and factors that affects consumers in buying vegetables organic in yogya bogor junction. A method of a base on this research using descriptive analysis and factor analysis. Based on research, in the process of a decision to buy organic vegetables consumers motivated because it has rich benefit and not have to worry about the chemical content. A source of information obtained from relation good friends and family. An attribute that considered namely freshness organic vegetables. Purchase in a planned and most consumers after consume organic vegetables in yogya bogor junction satisfied. There are five groups of factors in the purchasing decision of organic vegetables namely physical factors, environmental factor, individual background factors, the appeal of the product and external factors
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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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