Judul: Analisis Supply Chain dan Lean Thinking Komoditas Brokoli di Kecamatan Cipanas, Kabupaten Cianjur, Jawa Barat
Abstrak: Broccoli is a vegetable that is potencial to be developed because it has a lot of nutrients that the body needs. Increasing demand of broccoli triggers competition among supply chain to fulfill consumer needs. Simply Fresh Organic (SFO) is a business firm in agribusiness sector which markets best quality of broccoli. However, SFO has not been able to meet consumer demand. Food Supply Chain Network analysis is conducted to find out existing condition and marketing efficiency of supply chain. The result of FSCN analysis is supply chain of organic broccoli is not efficient. Futhermore, Lean Thinking approach is conducted to find out the cause of supply chain inefficiencies. Then, the final result of Lean Thinking analysis is several alternative solutions. Briefly, proper condition and collaboration among supply chain actors and internal activity of each supply chain are required to improve marketing efficiency.
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Judul: Manajemen rantai pasokan brokoli organik (Studi Kasus PT Agro Lestari di Cibogo, Kabupaten Bogor, Jawa Barat)
Abstrak: komoditas unggulannya adalah brokoli dengan pangsa pasar Indonesia 15-20 persen/tahun. Namun demikian jaminan kualitas, jumlah pasokan kurang dan pengiriman yang belum tepat waktu merupakan penyebab belum efisiennya kinerja rantai pasokan brokoli. Oleh karena itu penelitian ini bertujuan untuk (1) mengidentifikasi dan mengkaji pengelolaan rantai pasokan brokoli organik pada PT Agro Lestari, (2) menganalisis kinerja rantai pasokan brokoli organik dalam hal efisiensi dan pelaksanaan kemitraan, dan (3) menganalisis alternatif kebijakan pengembangan manajemen rantai pasokan berdasarkan hasil evaluasi rantai pasokan. Penelitian akan dilakukan di PT Agro Lestari, Jl. Raya Puncak Jl. Diklat PLN No. 1 Cibogo Kabupaten Bogor dan kebun petani mitra yang berada di daerah Cisarua, Kabupaten Bogor. Penelitian mengenai manajemen rantai pasokan brokoli organik tersebut dilaksanakan pada bulan Mei hingga Juni 2011. Pengumpulan data dilakukan dengan observasi atau pengamatan langsung, kuesioner dan wawancara dengan pihak-pihak yang terkait. Responden dalam penelitian ini adalah petani brokoli organik yang berada di Desa Cisarua, PT Agro Lestari, pihak PT X , dan Lotte Mart. Penelitian dilakukan dengan metode analisis deskriptif kerangka Food Supply Chain Networking (FSCN), analisis tataniaga, dan analisis deskriptif dengan menggunakan kesesuaian atribut.
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Judul: Dynamical System of Hepatitis B in Three Groups with Vaccination
Abstrak: The aim of this study is to modify the hepatitis B transmission model in three age groups involving vaccination from the model conducted by Zhoe and Zhang.The method used is to analyze the stability of the fixed point and its basic reproduction number (R_0). Performed stability analysis and numerical simulation to see population dynamics. Next, a sensitivity analysis of the parameters was carried out to see its effect on R_0. From the analysis obtained two fixed points, namely non-endemic and endemic fixed points. Non-endemic fixed points are locally asymptotically stable if R_0 <1 Meanwhile, the endemic fixed point is locally asymptotically stable if R_0 > 1. Hepatitis vaccination affects the number of susceptible population, because the more successful the vaccination, the smaller the number of susceptible populations so that the smaller the population will be infected.
Keyword: Dynamic, Hepatitis B, Vaccine, Mathematical model