Judul: The Effect of Individual factor on the adoption of record keeping in Koperasi Peternak Sapi Cianjur Utara
Abstrak: Pemerintah berupaya meningkatkan ketahanan pangan masyarakat. Melalui pemenuhan kebutuhan pangan masyarakat dapat meningkatkan kesejahteraan masyarakat. Pemenuhan kebutuhan pangan dan gizi yang baik dapat dicapai dengan peningkatan konsumsi susu. Namun, produksi dalam negeri masih belum bisa mencukupi kebutuhan susu dalam negeri. Peningkatan produksi susu dalam negeri dapat dicapai dengan penggunaan teknologi. Penggunaan teknologi pencatatan data peternakan dapat membantu peternak meningkatkan produksi susu sapi. Penelitian ini bertujuan untuk menganalisis pengaruh karakteristik sosial ekonomi terhadap penerapan pencatatan data peternakan dan menganalisis faktor yang mempengaruhi adopsi teknologi pencatatan data peternakan di KPS Cianjur Utara. Metode yang digunakan berupa analisis deskriptif dan regresi logistik dengan menggunakan data dari kuesioner dengan 71 responden. Kondisi karakteristik sosial ekonomi di KPS Cianjur Utara menunjukan responden yang mengadopsi teknologi adalah responden pada usia produktif, memiliki pendidikan rendah, memiliki jumlah tanggungan sedikit, dan skala usaha menengah. Hasil dari penelitian ini menunjukan bahwa variabel umur, pendidikan informal, dan tanggungan keluarga berpengaruh negatif signifikan terhadap penerapan pencatatan data peternakan. Selain itu, jumlah sapi, luas kandang sapi, dan bahan konstruksi atap memiliki pengaruh positif signifikan terhadap penerapan pencatatan data peternakan., The government is trying to improve the food security of the community. By fulfilling the community's food needs, it can improve the community's welfare. Meeting good food and people can achieve nutrition needs by increasing milk consumption. However, domestic production is still unable to meet the domestic demand for milk. Increasing domestic milk production can be achieved by using technology. The use of livestock data recording technology can help farmers increase cow's milk production. This study aims to analyze the effect of socio-economic characteristics on the application of livestock data recording and the factors that influence the adoption of livestock data recording technology in North Cianjur KPS. The method used is descriptive analysis and logistic regression using data from a questionnaire with 71 respondents. The socio-economic characteristics in North Cianjur KPS show that respondents who adopt technology are of productive age, have low education, have few dependents, and are of medium-scale business. The results of this study indicate that the variables of age, informal education, and family dependents significantly negatively affect the application of livestock data recording. In addition, the number of cows, the area of the cowshed, and roof construction materials significantly positively affect the application of livestock data recording.
Keyword: Technology Adoption, Logistics Regression, Livestock Data Recording, Adopsi Teknologi, Regresi Logistik, Pencatatan data peternakan

Judul: The Effect of Government Support Program on The Adoption of Improved Feed Technology in Koperasi Peternak Sapi Cianjur Utara
Abstrak: Peranan subsektor peternakan dalam PDB tahun 2021 memberikan kontribusi positif sebesar 1,58 persen dengan pertumbuhan sebesar 0,34 persen (yoy) bagi perekonomian nasional. Peningkatan konsumsi susu dalam memenuhi kebutuhan susu dalam negeri dapat meningkatkan jumlah impor susu di Indonesia. Ketergantungan terhadap impor mendorong pemerintah melakukan upaya pengembangan usaha dengan kebijakan yang membantu peternak mengadopsi teknologi. Penggunaan teknologi pakan kualitas tinggi dapat meningkatkan produksi serta kualitas susu. Penelitian ini bertujuan menganalisis pengaruh program bantuan pemerintah terhadap adopsi teknologi pakan kualitas tinggi di KPS Cianjur Utara. Penelitian ini menggunakan metode analisis deskriptif, regresi logistik dan data primer yang diperoleh dengan wawancara dan kuesioner terdiri dari komponen adopsi teknologi, karakteristik sosial ekonomi, program bantuan pemerintah yang diakses peternak dari tahun 2019 hingga 2022. Hasil penelitian ini menunjukkan karakteristik peternak dalam kategori umur produktif, sebagian besar tamatan SD, peternak turut aktif dalam pendidikan informal, jumlah tanggungan lebih besar, jumlah sapi yang dimiliki kategori skala usaha kecil, luas kandang yang dimiliki sempit, peternak mendapatkan hijauan dari menanam sendiri dan pendapatan dalam kategori tinggi. Faktor tanggungan keluarga, sumber hijauan, program bantuan sapi, skema bantuan kredit dan kemudahan akses bantuan berpengaruh positif dan signifikan sementara faktor lahan kandang dan frekuensi bantuan berpengaruh negatif dan siginfikan terhadap adopsi teknologi., The role of the livestock subsector in GDP in 2021 contributed positively by 1.58 persen with growth of 0.34 persen (yoy) to the national economy. Theincrease in milk consumption in meeting domestic milk needs can increase the number of impor milk in Indonesia. Dependence on imports encourages the government to make efforts to develop dairy businesses with government policies that help farmers adopt technology to increase milk production. This study analyses the government support program's effect on adopting improved feed technology in the KPS Cianjur Utara. The method used is descriptive analysis, logistic regression and primary data obtained by interviews and questionnaires accessed by farmers from 2019-2022. The results of this study showed that farmers in the productive age category, primarily elementary school, actively participated in informal education, the number of dependents and the number of cows were more significant, the area of the stalled land was narrow, and forage food sourced from self-growing, and income was high. Factors of family dependents, forage sources, cattle support programs, credit support schemes and Support frequency has positive and significant. While the area of stall land and the frequency of government support have a negative and significant impact on technology adoption.
Keyword: Government Support, Improved Feed, Logistic Regression, Technology Adoption

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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