Judul: Adoption of E-Commerce in Marketing Agricultural Products Among Farmers (Case: Sweet Potato Farmers in Cikarawang Village, Dramaga, Bogor District)
Abstrak: E-commerce mendukung dan mempermudah petani dalam memasarkan produk pertanian. Namun demikian, tidak banyak petani yang memanfaatkan e-commerce dalam usahataninya. Penelitian ini mendalami faktor penentu adopsi e-commerce di kalangan petani ubi jalar di Desa Cikarawang, Dramaga, Bogor. Lebih spesifik, penelitian ini mendalami keterkaitan antara karakteristik petani dan persepsi terhadap keputusan adopsi e-commerce tersebut. Untuk itu, penelitian ini menggunakan metode mixed method, yaitu kombinasi pengumpulan data kuantitatif dan kualitatif. Teknik simple random sampling digunakan dalam memilih responden (40 petani ubi jalar) untuk dilakukan wawancara terstruktur. Sementara itu, informan dipilih secara sengaja berdasarkan pemahaman mereka tentang adopsi e-commerce di kalangan petani ubi jalar. Meskipun persepsi petani terhadap e-commerce pada umumnya positif, namun regresi logit mendapatkan hanya petani yang berumur muda yang berpeluang mengadopsi e-commerce. Hal ini terkait dengan kerumitan e-commerce sehingga kurang menarik bagi mereka yang berusia lanjut. ADRIANSYAH NUR FAKHRI. Adopsi E-Commerce Pemasaran Produk Pertanian di Kalangan Petani (Kasus: Petani Ubi Jalar di Desa Cikarawang, Kecamatan Dramaga, Kabupaten Bogor). Dibimbing oleh IMAN K NAWIREJA. E-commerce mendukung dan mempermudah petani dalam memasarkan produk pertanian. Namun demikian, tidak banyak petani yang memanfaatkan e-commerce dalam usahataninya. Penelitian ini mendalami faktor penentu adopsi e-commerce di kalangan petani ubi jalar di Desa Cikarawang, Dramaga, Bogor. Lebih spesifik, penelitian ini mendalami keterkaitan antara karakteristik petani dan persepsi terhadap keputusan adopsi e-commerce tersebut. Untuk itu, penelitian ini menggunakan metode mixed method, yaitu kombinasi pengumpulan data kuantitatif dan kualitatif. Teknik simple random sampling digunakan dalam memilih responden (40 petani ubi jalar) untuk dilakukan wawancara terstruktur. Sementara itu, informan dipilih secara sengaja berdasarkan pemahaman mereka tentang adopsi e-commerce di kalangan petani ubi jalar. Meskipun persepsi petani terhadap e-commerce pada umumnya positif, namun regresi logit mendapatkan hanya petani yang berumur muda yang berpeluang mengadopsi e-commerce. Hal ini terkait dengan kerumitan e-commerce sehingga kurang menarik bagi mereka yang berusia lanjut., E-Commerce supports and facilitates farmers in marketing agricultural products. However, not many farmers use e-commerce in their farming. This study explores the determinants of e-commerce adoption among sweet potato farmers in Cikarawang Village, Dramaga, Bogor. Specifically, this study explores the relationship between farmer characteristics and perceptions of e-commerce to the adoption decision. For this purpose, this research used a mixed method, a combination of quantitative and qualitative data collection. Simple random sampling was used to select respondents (40 sweet potato farmers) for a structured interview. Meanwhile, informants were selected deliberately based on their understanding of the e-commerce adoption among sweet potato farmers. Although farmers generally have positive perceptions of e-commerce, the logit regression indicates that adoption of e-commerce is more likely among younger farmers. This can be attributed to the complexity of e-commerce, which makes it less appealing to older farmers.
Keyword: sweet potato farmers, Cikarawang Village, e-commerce adoption

Judul: Efektivitas Komunikasi Pemasaran Digital Produk Olahan Pertanian "Perkedel Kentang" Pada E-commerce Aslina Fresh
Abstrak: Perkembangan teknologi informasi dan komunikasi yang pesat telah mengubah perilaku dan gaya hidup masyarakat menjadi lebih praktis dan ekonomis. Memasuki era industri 4.0 dengan konsep Internet of Things (IoT), segala jenis pekerjaan dapat diselesaikan secara otomatis melalui perangkat digital serta dapat membuka peluang untuk melakukan bisnis secara online atau yang biasa disebut dengan e-commerce. Di Indonesia e-commerce berkembang sangat cepat karena dianggap efektif dalam pemasaran produk dan sebagai pilihan untuk memenuhi kebutuhan pembelian secara cepat. Maka dari itu, tujuan dari penelitian ini adalah menganalisis hubungan karakteristik konsumen, komunikasi pemasaran digital dengan efektivitas komunikasi pemasaran digital produk pertanian UMKM Aslina Fresh. Penelitian melalui pendekatan kuantitatif dengan metode survei yang menggunakan instrumen kuesioner dan didukung oleh data kualitatif dengan wawancara mendalam dan studi literatur. Hasil penelitian menunjukkan bahwa terdapat hubungan signifikan antara karakteristik konsumen pada indikator jenis kelamin dan pekerjaan dengan efektivitas komunikasi pemasaran digital aspek afektif dan usia dengan efektivitas komunikasi pemasaran aspek kognitif., The rapid development of information and communication technology has changed people’s behavioue and lifestyle to be more practical and economical. Entering the industrial era 4.0 with the concept of the Internet of Things (IoT), all types of work can be completed automatically through digital devices and can open up opportubities to do business online or commonly reffered to as e-commerce. In Indonesia, e-commerce is growing very fast because it is considered effective in product marketing and as an option to meet purchasing needs quickly. Therefore, the purpose of this study is to analyse the relationship between consumer characteristics, digital marketing communications and the effectiveness of digital marketing communications for agricultural products of UMKM Aslina Fresh. Research through a quantitative approach with a survey using a questionnaire instrument and is supported by qualitative data with in-depth interviews and literature studies.The results showed that there was a significant correlation between the consumer characteristics on the indicators of gender and occupation with the effectiveness of digital marketing communications in affective aspects an age with the effectiveness of marketing communications in cognitive aspects.
Keyword: Digital Marketing Communication, E-commerce, Processed Agricultural Product

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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