Judul: Strategi dan Kelayakan Pengembangan Usaha Perkebunan Kelapa Sawit Pola Kemitraan PT. Anugerah Tani Bersama dengan Masyarakat (Kasus Perkebunan Kelapa Sawit di Kabupaten Banyuasin, Sumatera Selatan)
Abstrak: Komoditas kelapa sawit merupakan primadona perdagangan ekspor Indonesia sejak dekade lalu. Minyak sawit sebagai hasil pengolahan buah kelapa sawit utama merupakan minyak nabati paling berpotensi dalam perdagangan minyak nabati dunia. Permasalahan yang menjadi landasan pengembangan kelapa sawit adalah bagaimana menemukan sinergi yang saling menguntungkan antara petani dan perusahaan di dalam pengusahaan perkebunan kelapa sawit dengan pola kemitraan. Tujuan penelitian ini adalah untuk mengevaluasi prospek kemitraan antara PT Anugerah Tani Bersama (PT ATB) dengan petani ‘pemilik’ lahan, menganalisis kelayakan pengusahaan perkebunan kelapa sawit dengan pola kemitraan bagi PT ATB dan petani, dan menentukan prioritas stratejik pengembangan kemitraan pengusahaan perkebunan kelapa sawit dengan pola kemitraan antara PT ATB dengan petani.
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Judul: Perkebunan Kelapa Sawit Pola Kemitraan PT. Anugerah Tani Bersama dengan Masyarakat (Kasus Perkebunan Kelapa Sawit di Kabupaten Banyuasin, Sumatera Selatan)
Abstrak: Problems that become the base of oil palm development is how to find a mutually beneficial synergy between farmers and companies in the cultivation of oil palm plantation with the partnership pattern. Goal of this research is to evaluate the prospects of partnership between PT Anugerah Farmers Co (PT ATB) with ‘owner’ land farmers, to analyze the feasibility of cultivation of oil palm plantation partnership for PT ATB and farmers, and determine strategic development priorities of partnerships by the oil palm plantation partnership between PT ATB with the farmers. Types of data used in this study the data in the form of investment costs, operating costs, and organizational management, partnership and farmers' income. The data in this study include primary and secondary data. Analysis carried out on various aspects relating to the strategy and the feasibility of developing oil palm plantations with the partnership developed, the partnership model, the analysis of plasma farmers' income, financial feasibility analysis, internal and external analysis. PT. ATB implement core-plasma partnership pattern with the farmers. Partnership core-plasma system that is applied is 60:40 partnership system. The results of the analysis indicate that the development plan of plantation and factory, in the technical assumptions and economic can be met, then the standard can be met quite feasible in all feasibility criteria. Total project investment will be recovered (PBP) in 9.87 years and net cash value (NPV) projects amounted to Rp 446.039 billion. Cash value of this project is equivalent to the internal exchange rate (IRR) of 34.15% (before interest), or 27.55% (after interest). Internal factors that became the strength of the partnership are the land, marketing, finance, credibility to access capital, government relations and public relations. While the factors that are considered to be the weaknesses are experience to build plantation, research and development, and management information system. External factors that become opportunity for partnership is local government support, availability of farmers land, banking support, and the prospects of oil palm. While the factors considered as a threat is political and security situation of the world. According to the results of QSPM analysis matrix, the prior alternative strategies is the SO (strengths and opportunities) based strategy is maximize cooperation partnerships with the potential of land owned by the community.
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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