Judul: A Strategy for the Development of Rubberized Coir (Sebutret) Agro industry (A Case Study in Sambas).
Abstrak: The combination of coconut coir and rubber can produce rubberized coir products (sebutret). The sebutret is very potential to be developed to gain value added and increase farmers and local government incomes. The research objectives were to assess internal and external factors that affect the product development and the implication of strengths, weaknesses, opportunities, and threats. The data obtained were analyzed descriptively and quantitatively in the form of weighted average scores and analysis strategies with SWOT analysis matrix, IFE, EFE and IE. The study shows that the main strength is the availability of sebutret product market and its main weakness is the low competitiveness, limited scope of local villages and districts. Meanwhile the main opportunity is sebutret manufacturing technology already exists and the main threat is the absence of a strong business partnership. The analysis shows the development of sebutret agro industry can be managed with market penetration strategy and product development. Implication of the analysis is formulated alternative strategy, namely: conduct accurate data collection, conduct a feasibility study, produce sebutret accordance with market demand, conduct the preparation of resources, establish processing industries, cooperate with the competent institutions, provide equipment and machinery, provide expert as facilitators, conduct promotion.
Keyword: 

Judul: Strategi Pengembangan Agroindustri Serat Kenaf di Indonesia
Abstrak: Kenaf (Hibiscus cannabinus L.) merupakan tanaman penghasilserat dari kulit batangnya. Serat kenaf dapat digunakan sebagai bahan berbagai produk, seperti kemasan hasil pertanian, kertas, pelapis dinding, interior mobil, geotekstil, soil safer, fibre drain, particle board, dan reinforcement plastics. Penelitian ini bertujuan untuk merumuskan alternatif strategi pengembangan agroindustri serat kenaf di Indonesia dan menentukan prioritas strategi yang tepat dalam pengembangannya. Metode penelitian ini menggunakan analisis StrengthsWeaknesses-Opportunities-Threats (SWOT) untuk merumuskan alternatif strategi dan metode Analytical Hierarchy Process (AHP) untuk menentukan alternatif strategi pengembangan agroindustri serat kenaf di Indonesia yang paling penting menurut para pakar. Strategi pengembangan agroindustri serat kenaf di Indonesia yang menjadi prioritas utama adalah membangun konsorsium kenaf indonesia yang terdiri atas seluruh pihak yang berkepentingan serta memperluas pengembangan pasar dan meningkatkan promosi dengan bobot AHP sebesar 0,2791.
Keyword: Agroindustry development, Analytical Hierarchy Process, Kenaf, Strengths-Weaknesses-Opportunities-Threats 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.
Keyword: