Judul: Arahan pengembangan hutan rakyat untuk pemenuhan bahan baku industri primer hasil hutan kayu di Provinsi Jawa Timur
Abstrak: The shortage of raw materias is a major problem for primary timber industry in Indonesia. In order to fulfill of industrial raw materials and provide both ecological and economic benefits, it is required a comprehensive direction in planning process to develop private forest in East Java. The purpose of this study was to develop a plan for meeting sustainable raw material supply for primary timber industry through the development of private forests. The specific objectives of this research was to make the direction of developing private forest in East Java through: (a) Identify the type of plants that are potentially (b) Identify the potential of appropriatness and availability of land for development of private forest in East Java (c) Identify the pattern of institutional and partnership between the timber industry with the community. According to IPHHK production capacity in 2011, wood industries need 7,412,558 m3 logs, meanwhile forest, both natural and production, can only meet 47% of IPHHK requirements. The potential species to be developed in East Java according to the research of industry needs, preferences and the potential of private forests are Teak, Albizia and Jabon. Based on the suitability of the land available for forest development, the potential land for development is an area of 649 433 hectares of teak and Sengon is an area of 773 892 ha with the largest development area covers Sumenep and Sampang. Jabon potential land development is an area of 412 119 ha in area with the greatest potential is Pacitan and Malang. To support the sustainable development of forests in East Java, it is necessary to build partnerships between IPHHK and farmers. For this partnership requires an institutional bridge the industry and farmers form cooperatives. The role of government is needed not only as facilitators and supervisors but also as policy decision maker to endorse the community in forest management.
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Judul: The Economic Impact Analysis of Forest Products Industries in the Java Region and Its Development Strategy A Regional Development Study
Abstrak: Penelitian ini dilakukan pada industri-industri pengolahan hasil hutan Perum Perhutani yang tersebar di wilayah Propinsi Jawa Tengah, Jawa Timur dan Jawa Barat. Tujuan penelitian ini adalah untuk (1) menganalisis keragaan dan efisiensi mikro dari industri pengolahan hasil hutan di lingkungan Perum Perhutani (2) menganalisis peranan atau kontribusi sektor industri pengolahan basil butan Perum Perbutani terbadap pertumbuhan ekonomi wilayah, penciptaan lapangan kerja, penyebaran pendapatan masyarakat, (3) meriganalisis prospe k pe ngem bang an ind u stri-ind u stri pe ngolahan basil hutan, dan (4) merumuskan strategi pengembangan industri pengolahan basil hutan yang dianggap optimum dari segi jenis, kapasitas, teknologi dan lokasinya, dalam rangka mencapai tujuan pembangunan wilayah secara optimal., This study is concerned with the forest product industries in Java which is managed under Perum Perhutani located in three provinces of Java. The study was conducted using the base year of 1980 - 1986. The objectives of the study are: ( 1) to evaluate the microeconomic efficiency of the forest products industries (2) to analyze the contribution of the forest products industries to the regional economic growth and its impact on the employmet as well as income distribution, (3) to analyze the development prospects of the forest products industries, and (4) to formulate a development strategy of the industries, which is expected to give optimum benefits to the regional development and Perum Perhutani income earning as well. With respect to the development objective of the forest sector in Indonesia, it has been noticed that this sector has undergone a systematic change in its orientation. The change in the orientation has been from the narrow emphasis as foreign exchange earner to a direction of achieving a more broader objective of regional development. The latter objective in fact, is more in line with the national development policy which aims at increasing the level of regional income, better employment opportunities and more equitable income distribution which enhances a better living standard of the rural living environment. Perurn Perhutani, as one of the state-owned enterprises in the forestry sector, accordingly has an obligation to support those basic regional development objectives.
Keyword: Wood industry, Regional development, Forest products industries

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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