Judul: Factors Influencing Consumer Behavior in the Adoption of Sustainable Consumption of Clothing Products in Jabodetabek
Abstrak: Peningkatan pertumbuhan penduduk yang diiringi dengan peningkatan pendapatan global telah mendorong konsumsi masyarakat terhadap kebutuhan pakaian. Perubahan gaya hidup akan membentuk perilaku konsumtif terhadap produk-produk fashion khususnya pakaian. Jumlah transaksi pembelian produk pakaian di e-commerce didominasi oleh generasi muda Jabodetabek berusia 18-35 tahun. Pola konsumtif di tengah gaya hidup masyarakat dapat membawa dampak buruk bagi lingkungan. Salah satu upaya yang dapat dilakukan masyarakat adalah mendorong perilaku mengonsumsi pakaian menjadi lebih bijak dengan menerapkan Konsumsi Berkelanjutan Produk Pakaian (KBPP). Hingga kini, penelitian mengenai KBPP di Indonesia masih terbatas. Penelitian ini bertujuan untuk menganalisis pola perilaku generasi muda di Jabodetabek, menganalisis persepsinya terhadap KBPP, serta mengidentifikasi faktor-faktor yang memengaruhi mereka untuk menerapkan KBPP. Metode analisis data yang digunakan yaitu analisis deskriptif, skala Thurstone, dan Regresi Logistik Multinomial. Hasil penelitian ini menunjukkan generasi muda cenderung membeli secondhand clothing dengan mayoritas telah menerapkan KBPP. Faktor utama yang memengaruhi penerapan KBPP adalah jenis kelamin, tingkat pendidikan, keterlibatan LSM lingkungan, pengetahuan terhadap KBPP, kepercayaan terhadap KBPP, dan pembelian produk pakaian.
Keyword: generasi muda, pola perilaku, secondhand clothing, sustainable clothing

Judul: The Influence of Green Marketing and
Consumer Behavior on the Repurchase Interest in Eco Fashion Buttonscarves in
Jabodetabek
Abstrak: Penelitian ini mengkaji pengaruh strategi green marketing, brand image, dan brand trust terhadap minat beli kembali konsumen pada produk fashion berkelanjutan di Indonesia, khususnya pada Buttonscarves. Dalam konteks ini, strategi green marketing dianggap sebagai pendekatan strategis yang berpotensi mempengaruhi preferensi dan keputusan konsumen terkait produk yang ramah lingkungan. Penelitian ini bertujuan untuk mengidentifikasi karakteristik konsumen Buttonscarves, mengeksplorasi pengaruh variabel environmentally friendly product, green product, green price, dan green promotion terhadap minat beli kembali produk, serta mengukur pengaruh brand image dan brand trust terhadap keputusan pembelian. Penelitian ini menggunakan data primer yang diperoleh melalui kuesioner secara online. Hasil penelitian ini menunjukkan bahwa environmentally friendly product, green product, green promotion, brand image berpengaruh terhadap minat beli kembali produk Buttonscarves., This study examines the influence of green marketing strategies, brand image, and brand trust on repeat purchase intention of consumers towards sustainable fashion products in Indonesia, specifically focusing on Buttonscarves. In this context, green marketing strategies are considered a strategic approach that potentially affects consumer preferences and decisions regarding environmentally friendly products. The research aims to identify the characteristics of Buttonscarves consumers, explore the impact of variables such as environmental friendly product, green product, green price, and green promotion on repeat purchase intention, and measure the influence of brand image and brand trust on purchasing decisions. This study uses primary data obtained through online questionnaires. The findings indicate that environmentally friendly product, green product, green promotion, and brand image significantly influence the repeat purchase intention of Buttonscarves products.
Keyword: purchasing decisions, environment friendly product, sustainable fashion

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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