Judul: Kajian Pengembangan Sentra Markisa Di Kabupaten Gowa
Abstrak: Passion fruit (Passiflora edulis f. edulis) is one of the best commodities in Gowa. As a regional producer of passion fruit, which spread it in more region in Gowa such as Tompo‟ bulu, Tompo‟ pao, Tinggi moncong, Parigi and Bontolempangan, Gowa regency supplies passion fruit to major industries in Makassar and processing it. However, The manufacturing products which is done have a low competitiveness due to the lack of additional value of products, unvariety products, unattractive product designs, and market access. In addition, the stakeholders who concerned with passion fruit agro-industry development don‟t shown an integrate activity for development of the upstream to downstream. The low competitiveness of passion fruit in Gowa made the local society as suppliers and farmers of passion fruit in order areas and it gives no more advantages. It is also made Gowa regency as a passion fruit center not be known in markets. This study aim was to get the development strategy of passion fruit center in Gowa regency, South Sulawesi which joint the actors in a series of activity of passion fruit center which could make the additional value. Occurred the increase of competitiveness which gives effect for the economic increase of local society. The study was done in Gowa regency based on specific criteria which used in-depth interview methods, observations and secondary data to get the information which was needed in this study. The data, which was obtained from the actors of passion fruit agro-industry in Gowa regency, was analyzed used the qualitative chain-value analysis which to identify the actors who was involved, their connections, and the needs of the actors of passion fruit center. Diamon Porter was used to analyze the competitiveness which had by the passion fruit center in Gowa regency. Furthermore, Internal and external analysis was done which will use to formulate the development strategies by using SWOT analysis. The result showed that not all of passion fruit center in Gowa regency had interaction of the upstream to downstream and had SMEs passion fruit processors which were strongly influenced by availability of raw materials, the ability of society to process and utilize the potential of area which had it and the government‟s role. For developing of passion fruit to compete, so the activity was focused on integration of the upstream to downstream of the agro-industry chain-value of passion fruit in each passion fruit center. It focused on increased profit of actors especially for the farmer and processors of passion fruit. Increasing human source creativity, so it could compete with the other businesses. The development strategy center to increase the competitiveness could be done whith the cooperation between the passion fruit center in Gowa regency such as Parigi and Bontolempangan regency as the most cultivation centers in Gowa regency. They became suppliers of passion fruit raw material to Tombolo‟ pao and Tinggi Moncong, so the production process of many passion fruit processed products in their center could operate continuously. The exiting of cooperation between passion fruit center in Gowa reduced the external pressures (competitor), so the additional value was obtained by the actors
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Judul: Mangosteen Development Strategy for Export Destination in the Perspective of Regional Development in Bogor Regency
Abstrak: Kabupaten Bogor adalah salah satu sentra terbesar manggis berkualitas ekspor. Produksi manggis nasional sebagian besar berasal dari Jawa Barat dan Kabupaten Bogor menyumbang 15,49 % manggis Jawa Barat pada tahun 2018. Akan tetapi, produksi manggis tersebut mengalami beberapa kendala seperti penurunan jumlah tanaman produktif, fluktuasi produksi dan kebun manggis yang belum tertata dengan baik. Selain itu, beberapa permasalahan pengembangan manggis di bagian hilir berupa rendahnya kualitas manggis dan lemahnya penanganan panen. Di sisi lain, kabupaten ini memiliki posisi strategis dan memiliki tanah non produktif luas yang dapat dimanfaatkan dengan lebih baik. Tujuan penelitian ini adalah menganalisis wilayah unggulan; ketersediaan dan kesesuaian lahan; rantai pasok; dan arahan serta strategi rencana pengembangan komoditas manggis tujuan ekspor di Kabupaten Bogor. Lokasi wilayah unggulan manggis dianalisis menggunakan metode Location Quotient- Dynamic Location Quotient (LQ-DLQ). Potensi ketersediaan dan kesesuaian lahan dianalisis menggunakan software sistem informasi geografis. Keragaan dan efisiensi rantai pasok manggis diuraikan menggunakan kerangka Food Supply Chain Network (FSCN), margin pemasaran, rasio keuntungan-biaya dan farmer’s share. Arahan wilayah pengembangan ditentukan menggunakan metode Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). Sementara itu, strategi pengembangan manggis tujuan ekspor dipilih menggunakan metode Strength, Weakness, Opportunities, Treatment (SWOT). Hasil penelitian menunjukkan bahwa Kabupaten Bogor memiliki potensi besar untuk pengembangan manggis. Kabupaten ini memiliki empat kecamatan unggulan dan empat kecamatan prospektif bagi komoditas manggis. Arahan wilayah unggulan terdiri dari Cigudeg, Leuwisadeng, Leuwiliang dan Klapanunggal. Arahan wilayah prospektif terdiri dari Jasinga, Nanggung, Sukamakmur dan Babakan Madang. Ketersediaan lahan untuk manggis seluas 70.097,5 ha dan didominasi oleh penggunaan lahan pertanian kering, hutan tanaman serta perkebunan. Kesesuaian lahan kelas S3(sesuai marginal) memiliki luas 54.925 ha dan kesesuaian lahan kelas S2 (cukup sesuai) memiliki luas 6.056,9 ha. Rantai pasok manggis terdiri dari saluran satu (petani–pedagang pengumpul kecil– pedagang pengumpul besar–eksportir); dan saluran dua (petani–pedagang pengumpul besar–eksportir). Kinerja rantai pasok secara kuantitatif menunjukkan bahwa saluran dua lebih efisien dibandingkan saluran satu. Parameter margin pemasaran dan rasio keuntungan–biaya termasuk efisien. Sementara itu, bagian yang diterima petani pada seluruh saluran pemasaran sebesar 22,4 sampai 33 % dan masih belum efisien. Strategi pengembangan manggis menggunakan alternatif pendekatan SO (Strength Opportunity) dan WO (Weakness Opportunity) melalui pertumbuhan produksi dan peningkatan kualitas komoditas manggis tujuan ekspor., Bogor Regency is one of the largest centers of export-quality mangosteen. Most of the national mangosteen production came from West Java, and Bogor Regency contributed 15,49 % of West Java mangosteen in 2018. However, the mangosteen production experienced several obstacles, such as a decrease in the number of productive plants, fluctuations in production, and mangosteen gardens that were not well organized. Some of the problems in developing mangosteen downstream are the low quality of the mangosteen and the weak handling of the harvest. On the other hand, this district has a strategic position and has a large area of non-productive land that can be utilized for mangosteen development. This study aims to analyze the leading areas, availability, suitability of land, supply chain, and strategy for developing mangosteen commodities for export in Bogor Regency. The location of the mangosteen seed area was analyzed using the Location Quotient-Dynamic Location Quotient (LQ-DLQ) method. Potential land
Keyword: development direction, development strategy, land suitability, mangosteen commodity, supply chain

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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