Judul: Analisis land rent usahatani dan marjin tataniaga pertanian hortikultura di kawasan agropolitan Kabupaten Cianjur
Abstrak: Pertanian di Kecamatan Pacet dan Cipanas didominasi oleh petani-petani kecil yang bercocok tanam tanaman hortikultura. Pada umumnya petani hanya menguasai sebidang lahan kecil dengan sistem tanam tumpangsari. Komoditas yang dipilih petani dan keuntungan yang diperoleh petani menentukan nilai land rent. Di sisi lain, tingkat keuntungan petani itu sendiri sangat ditentukan oleh rantai tataniaga pertanian. Sehubungan dengan hal tersebut, maka dilakukan penelitian yang bertujuan untuk menganalisis nilai land rent, keadaan usahatani serta pola rantai tataniaga dan pertanian di wilayah Kecamatan Pacet dan Cipanas. Data yang digunakan adalah data primer yang diperoleh dari survei lapang terhadap 44 petani dari 4 desa di kecamatan Pacet dan Cipanas, yaitu Desa Sukatani; Sindangjaya; Ciherang; dan Ciputri, dan 80 responden pedagang pengumpul dari berbagai tingkatan. Analisis yang digunakan dalam penelitian ini adalah analisis deskriptif, analisis marjin tataniaga, analisis land rent dan faktor-faktor yang mempengaruhinya dengan analisis regresi berganda (Multiple Regression Analysis). Hasil analisis menunjukkan bahwa pola tanam komoditas hortikultura yang terdapat di Kecamatan Pacet dan Cipanas sangat beragam.Pola Tanam yang menghasilkan land rent tertinggi adalah Wortel-Bawang Daun-Brokoli-Horenzo- Kailan-TangOh, Wortel-Bawang Daun-Horenzo-Pakcoy-Selada Keriting-Seledri, dan Cabe-Kol-Tomat-Sawi Putih. Petani lebih dominan menanam empat komoditas sekaligus dalam satu musim tanam. Pupuk kandang ayam adalah pupuk yang paling banyak dan sering digunakan, diikuti oleh Urea, TSP, KCL, dan NPK.
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Judul: Analisis kemampuan lahan dan manfaat ekonomi (land rent) pada berbagai tipe penggunaan lahan untuk tanaman hortikultura di kecamatan pacet Kabupaten Cianjur
Abstrak: The purpose of this research is to analyze land suitability classes on several vegetable plants and to compare land rent and financial feasibility on several land use types. Location of the research was in Pacet, Cianjur which base on Soil Research Centre and Agroclimate (1978) classification include Mediteran group. The data was analyze in Laboratory of Land Resource Development Planning, Department of Soil, Bogor Agnculturai University. The research began in February and finished by September 2002. The method which use are analysis of land suitability classes base on suitability criteria by Soil Research Centre and Agroclimate (2000), analysis of land rent base on revenue and production cost, analysis of financial feasibility with cash flow analysis (Net Present Value, Internal Rate of Return, Benefit Cot Ratio), and Break Event Point. Analysis of statistics are used T -test, best-subsets regression, and multiple regression.
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Judul: Durability of Specific Immunoglobulin (Ig) Y Againts Influenza and Covid-19 in Sunscreen
Abstrak: The benefit of specific immunoglobulin Y (Ig Y) as an active ingredient in personal care products such as sunscreen has not been properly studied. Our study aims to evaluate the reliability of specific IgY against influenza and the COVID-19 virus in a sample sunscreen product. Specific IgY influenza and COVID-19 viruses were inserted in the sample sunscreen at two concentrations of 0.1% and 0.25%. Three treatments were observed: control (C) sunscreen without IgY, treatment 1 (T1) sunscreen with 0.1% IgY, and treatment 2 (T2) sunscreen with 0.25% IgY. Organoleptic observations were carried out to monitor changes in aroma, color, and texture, and sunscreen sampling was done every week for 6 weeks. The durability of IgY was evaluated using an enzyme-linked immunosorbent assay (ELISA) and a neutralization assay. Organoleptic observation from weeks 1 to 6 showed consistency in its aroma, color, and texture. Enzyme-linked immunosorbent assay and neutralization assay (NA) results of the T1 and T2 groups showed negative results except for sample T1 at week 5, which showed a positive result in the Influenza A ELISA. Based on the results, it seems that IgY concentrations of 0.1% or 0.25% were not optimal. However, this negative result might be due to low concentration of the IgY and the presence of beeswax, which inhibits IgY and causes it to dissolve in distilled water, thus preventing it from being detected in the assay.
Keyword: Immunoglobulin Y, Sunscreen, Influenza, COVID-19, Biological Activity