Judul: Development of Leading Food Crops Commodity for Supporting Regional Development in Bone Regency
Abstrak: The agricultural sector is an important sector in Bone regency as indicated by its dominancy in the Bone regency economic structure. The role of the agricultural sector to the economy of Bone is very large as compared to other sectors due its 47,73% contribution to the PDRB of Bone regency. About 55.58% of the total population is working in the agricultural sector. The potential of the agricultural sector in Bone regency is reflected by the fact that mostly area are agricultural land (rice field and agricultural drylands). Although with the very large potential of land and human resources, the productivity of food crops in Bone regency is still fluctuating relatively. Based on 2007 – 2011 BPS data, agricultural productivity sense experiencing negative trends. One of the factors affecting its productivity is the lack of agricultural infrastructure. In addition, the suitability of land for food crops has not been a major consideration in planning that impacted on the productivity and sustainability of agricultural crop products. Development of the agricultural sector can be done through leading commodity approach by considering the biophysical suitability, resources and government policy supported. This study aims to formulate the direction and strategy development leading commodity crops in Bone regency through: (1) Identify the leading food crops commodities in Bone Regency, (2) Identify availability of agricultural infrastructure and facilities, (3) Evaluate land suitability for food crops in Bone Regency, and (4) Develop guidelines and strategies for development of leading foods in Bone Regency. The analytical methods used are the LQ analysis, average area analysis, availability and consumption of food and synthesized by MCDM-TOPSIS, schallogram, land suitability, and A'WOT. To establish the leading commodity for the development of agricultural commodity crops, this research used Location Quotient analysis, average area analysis, availability and consumption of food and synthesized by MCDM-TOPSIS, schallogram, land suitability, and A'WOT. From the analysis it can be seen that the leading commodity food crops that could potentially be developed in Bone regency are paddy, corn and soybeans. Based on the analysis schallogram for the number, type and availability of infrastructure to support agriculture, most districts in Bone regency still do not have adequate infrastructure. From the analysis, there are only two districts which is the Hierarchy region I and 8 districts belong to Hierarchy II region and the remaining 17 districts belong to Hierarchy region III. Region I and II hierarchy generally have complete agricultural infrastructure while the Hierarchy III region has inadequate infrastructure. Based on the results of the analysis, the suitable and available land for development of paddy, is 95 068 ha (20.7% of the district). For the development of soybean and corn that are in the same area of land 73 317 ha (16.0%) and specific to soybean 3,934 ha (0.9% of the total area). Location development leading commodity crops of paddy, corn and soybeans are districts that in the region of Hierarchy is based on the development priorities based on analysis of LQ, availability of agricultural infrastructure and suitability and availability of land. The district includes Libureng, Kahu, Bengo, Salomekko, Ajangale, Ponre, Lappariaja, China,
Keyword: Agricultural infrastructure, Bone regency, land suitability, leading commodity.

Judul: Regional Study for Small Industry Development Based on Supreme Commodities of Agriculture in Majalengka Regency.
Abstrak: Agriculture is a basic sector in Majalengka Regency, but it still has a weak sectoral linkages with agro-processing industries. On the other hand, a region development requires the presence of a synergistic integration among economic sectors to avoid stagnation state. This study aimed to : (1) identify the comparative-competitive of agricultural leading commodities based on acreage, (2) identify the land suitability for commodity development; (3) identify the villages based for small industries agro-processing, (4) identify the villages having high level of the facilities services and accessibility for supporting industry; (5) determine the sites for small industries and its commodity development. The analytical methods used were analysis of the location quotient (LQ), shift share analysis (SSA), schallogram analysis and land suitability analysis. The study focused on commodities of agricultural i.e. corn, mango, soybean, bananas and melinjo. The results showed that corn was superior in six districts, mango was superior in 13 districts, soybean was superior in one district and bananas was superior in two districts. However, no district was superior to melinjo. There were 21,837 ha of land that phisically suitable for corn, 53,049 ha for mango, 4,074 ha for soybean and 15,837 ha for banana. There were 179 villages classified as basic for small agro-processing industries. Villages with the high level of facilities services and accessibility consisted of 44 villages. There were 7 industrial villages and 8 industrial areas (consisted of several villages), that could be developed as a small industries in the region based on agricultural supreme commodities. The priority areas for commodity development comprise 2,827 hectares for corn, 15,221 hectares for mango, 3,328 hectares for soybean and 304 hectares for bananas.
Keyword: agro-processing industry, comparative-competitive advantage, land suitability, Majalengka, regional study

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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