Judul: Analisis Finansial Usaha Hutan Rakyat Jabon Pola Bagi Hasil di Unit Usaha Perhutanan Kebun Semeru Bogor
Abstrak: Wood utilization of private forest has a potential to fulfill the raw material demand of industry amid the decreasing of natural forest resources in Indonesia. One of scheme for development of private forest in Indonesia is partnership scheme. The purpose of this research is to determine the financial feasibility of partnership scheme with profit sharing mechanism in jabon (Anthocephalus cadamba Miq.) private forest management at Kebun Semeru Forestry Business Unit (UUP Kebun Semeru), Mitra Karsa Cooperative, Forestry Research and Development Agency that located in Leuwiliang District, Bogor Regency, West Java Province. Financial analysis using Discounted Cash Flow methods shows that the NPV is Rp 202.700.335, IRR is 31% and Net B/C is 1,37. It means that private forest management by UUP Kebun Semeru is financially feasible. Despite net profit that earned from this partnership scheme is less than net profit earned by self-capital or bank loan capital for private forest, this profit sharing scheme is one of profitable option in the situation of capital limitation or complex requirements to get loan from official financing sector such as bank.
Keyword: financial analysis, profit sharing scheme, private forest

Judul: Analisis finansial pengusahaan hutan rakyat pola Agroforestry di Dusun II, Desa Pangradin, Kecamatan Jasinga, Kabupaten Bogor
Abstrak: Analisis finansial hutan rakyat perlu dilakukan untuk mengetahui seberapa besar manfaat yang diperoleh petani, dengan menelaah biaya-biaya yang dikeluarkan. Analisis yang digunakan adalah Net Present Value (NPV) untuk mengetahui seberapa besar total penerimaan bersih yang diperoleh petani pada akhir daur, Benefit Cost Ratio (BCR) merupakan perbandingan antara total penerimaan total dan total biaya dan Internal Rate of Returns (IRR) menunjukkan tingkat suku bunga maksimum yang dapat dibayar oleh suatu proyek. Analisis menunjukkan nilai NPV sebesar Rp 8.890.243.820 atau sebesar Rp 5.945.244 /ha/th, BCR 2 dan IRR 37% dengan modal pengusahaan secara mandiri. Pengusahaan hutan rakyat juga layak dilakukan apabila modal berasal dari pinjaman/kredit Bank dengan tingkat suku bunga 12 % dan adanya kenaikan pajak untuk peningkatan PAD dengan nilai NPV sebesar Rp 3.959.618.968 atau sebesar Rp1.671.481/ha/tahundengan nilai BCR 2.15 dan IRR sebesar 22%. Berdasarkan hasil analisis dapat disimpulkan bahwa pengusahaan hutan rakyat layak secara finansial
Keyword: agroforestry, private forest, financial analysis

Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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