Judul: Analysis of Factors Affecting Interest of Young Farmer Families to Work in Cassava Farming (Case Study: Benteng Village, Ciampea District, Bogor Regency)
Abstrak: Kabupaten Bogor termasuk dalam kawasan khusus pengembangan ubi kayu berdasarkan Keputusan Menteri Pertanian No. 03/Kpts/PD. 120/1/2015. Salah satu penghasil ubi kayu Kabupaten Bogor terletak di Desa Benteng, Kecamatan Ciampea. Ubi kayu menjadi komoditas unggulan dan sumber pendapatan bagi petani di Desa Benteng. Petani ubi kayu didominasi oleh petani berumur tua, hal ini diindikasi karena kurangnya ketertarikan generasi muda Desa Benteng terhadap usahatani ubi kayu sehingga perlunya regenerasi untuk keberlanjutan usahatani ubi kayu di Desa Benteng. Penelitian ini bertujuan untuk (1) menganalisis persepsi pemuda keluarga tani terhadap usahatani ubi kayu di Desa Benteng, (2) menganalisis pendapatan usahatani ubi kayu di Desa Benteng, (3) menganalisis faktor-faktor yang memengaruhi minat pemuda keluarga tani untuk bekerja pada usahatani ubi kayu di Desa Benteng. Metode analisis data yang digunakan adalah skala likert, analisis pendapatan, dan regresi logistik biner. Hasil penelitian menunjukkan bahwa persepsi pemuda secara keseluruhan terhadap usahatani ubi kayu memiliki persepsi positif atau setuju namun tidak setuju terhadap kategori risiko usahatani ubi kayu. Nilai R/C rasio lebih dari satu yang artinya usahatani ubi kayu di Desa Benteng menguntungkan. Faktor-faktor yang berpengaruh secara signifikan terhadap minat pemuda keluarga tani pada usahatani ubi kayu adalah jenis kelamin, pendapatan usahatani orang tua dan pengalaman usahatani., Bogor Regency is included in a special area for cassava development based on the Decree of the Minister of Agriculture No. 03/Kpts/PD. 120/1/2015. One of the centers of cassava in Bogor Regency is located in Benteng Village, Ciampea District. Cassava is a leading commodity and source of income for farmers in Benteng Village. Cassava farmers are dominated by old age farmers, this is indicated because of the lack of interest of the younger generation of Benteng Village towards cassava farming so that regeneration is needed for the sustainability of cassava farming in Benteng Village. This study aims to (1) analyze the perception of young farming families on cassava farming in Benteng Village, (2) analyze the income of cassava farming in Benteng Village, (3) analyze the factors that influence the interest of young farming families to work in cassava farming. wood in the Fort Village. Data analysis methods used are Likert scale, income analysis, and binary logistic regression. The results showed that the youth's overall perception of cassava farming had a positive perception or agreed but disagreed with the risk category of cassava farming. The value of the R/C ratio is more than one, which means that cassava farming in Benteng Village is profitable. Factors that significantly influence the interest of young farming families in cassava farming are gender, parents' farm income and farming experience.
Keyword: binary logistic regression, cassava, income analysis, perception, Likert scale

Judul: Analysis of Factors Influencing Interests of Farmer Families Youth to Work in Sweet Potato Farming (Case Study: Jatirogo District, Tuban Regency)
Abstrak: Sentra produksi ubi jalar terbesar di Kabupaten Tuban yaitu di Kecamatan Jatirogo. Ubi jalar menjadi komoditas penting sebagai sumber pendapatan petani. Usia petani di Kecamatan Jatirogo didominasi oleh petani yang berusia tua, hal ini dikarenakan rendahnya minat pemuda untuk melakukan usahatani ubi jalar. Penelitian ini bertujuan untuk: (1) menganalisis pendapatan usahatani ubi jalar di Kecamatan Jatirogo, (2) mengidentifikasi persepsi petani dan pemuda keluarga tani terhadap usahatani ubi jalar Kecamatan Jatirogo, (3) menganalisis faktor-faktor yang memengaruhi minat pemuda keluarga tani untuk bekerja di usahatani ubi jalar di Kecamatan Jatirogo. Metode analisis data menggunakan analisis pendapatan, skala likert dan regresi logistik biner. Hasil penelitian menunjukkan nilai R/C rasio lebih dari satu artinya usahatani ubi jalar menguntungkan. Persepsi petani terhadap pekerjaan di usahatani ubi jalar secara umum adalah setuju namun tidak setuju terhadap aspek ekonomi dan kestabilan harga jual ubi jalar. Hasil persepsi pemuda keluarga tani ubi jalar secara keseluruhan adalah setuju namun kurang setuju terhadap aspek pendapatan dan tingkat konsumsi ubi jalar dalam rumah tangga. Faktor-faktor yang berpengaruh secara positif terhadap minat pemuda keluarga tani untuk bekerja di usahatani ubi jalar adalah jenis kelamin, status penikahan, pengalaman usahatani dan tingkat pendapatan pertanian keluarga pemuda., The biggest sweet potato production center in Tuban Regency is Jatirogo District. Sweet potato is an important commodity as a source of income for farmers. The age of farmers in Jatirogo District is dominated by older farmers, this is due to the low interest of youth to do sweet potato farming. This study aims to: (1) analyze the income of sweet potato farming in Jatirogo District, (2) identify the perceptions of farmers and farmer families youth towards sweet potato farming in Jatirogo District, (3) analysis of factors influencing interest of farmer families youth to work in sweet potato farming in Jatirogo District. Data analysis methods used income analysis, likert scale and binary logistic regression. The result of the study shows that the R/C ratio was more than one, meaning sweet potato farming was profitable. Farmers’ perceptions of work in sweet potato farming in general are agree but disagree with aspect of economics and the stability sweet potato selling prices. The result of the perception of the youth of sweet potato farming families as a whole agree but do not agree with the income aspect and the level of consumption sweet potato in the household. Factors that have a positive effect on the interest of farmer families youth to work in sweet potato farming are gender, marital status, farming experience and the level of agricultural income of youth families.
Keyword: binary logistic regression, income analysis, likert scale, perception, R/C ratio

Judul: Peluang Partikel Plasma Berada Pada Dimensi Debye Akibat Gangguan Gelombang Elektromagnetik dengan Menggunakan Persamaan Schrödinger
Abstrak: The solution of Schrodinger equations with plasma Coulomb potential in spherical coordinat results solution wave function and energy plasma particle. Electron probability density at Debye length with thermal effect same as ion, which indicates plasma in neutral state. Electromagnetic waves perturbation of an electric field given to result wave function perturbation system. The probability density of plasma particle due to electromagnetic waves perturbation is the largest when an electromagnetic waves frequency 1.41 times the plasma frequency .
Keyword: Schrödinger, plasma, electromagnetic wave