Judul: Faktor-Faktor yang Memengaruhi Produksi Hortikultura di Indonesia
Abstrak: Horticulture is one of the agricultural subsectors which contributes the Indonesian GDP because of its role as source of livelihood for rural communities. The largest production quantities of horticultural commodities which spread throughtout the whole provinces in Indonesia are bananas, papayas, oranges, pineapples, tomatoes, peppers and potatoes. In addition, Indonesian climate supports its fruit and vagetable crops with unique characteristics and certain position to domestic and foreign consumers. However, every province in Indonesia has distinct characteristic that differs the crops production in each region. The purpose of this research is to analyze the Indonesian horticulture production and the affecting factors by using panel data method in 2003-2012 period. The result shows that West Java is a production center of bananas, tomatoes, peppers and potatoes. While the North Sumatera province as main producer for oranges, Lampung province is a production center of pineapples and East Java is a production center of papayas. Whereas, horticulture production is mostly affected by some factors, which are producer prices (HP), wage (UPAH), fertilizer (PUPUK) and labor (TK).
Keyword: Production., Horticulture, Panel data

Judul: Daya Saing Ekspor Komoditi Hortikultura Indonesia di Pasar ASEAN
Abstrak: Horticulture is one of agricultural sub sector of Indonesia which has quite good potential in international market, such as ASEAN. The objectives of this research are to analyze condition and the competitiveness position of Indonesian horticultural commodities in ASEAN’s market, also to formulate strategy which leads to increase the export competitiveness of Indonesian horticulture. The export competitiveness of Indonesian horticulture is analyzed using Revealed Comparative Advantages, Export Competitiveness Index, and Acceleration Ratio methods. The examined commodities in this research are cut flowers, mangoes, mangosteens, guavas, avocadoes, watermelons, potatoes, tomatoes, gingers, and curcumas. Considering the classification based on the analysis, we can coclude that commodities which have export competitiveness are mangoes, mangosteens, guavas, avocadoes, watermelons, potatoes, gingers, curcumas, and cut flowers, whereas tomatoes have less export competitiveness in ASEAN’s market
Keyword: horticulture., export competitiveness, ASEAN

Judul: Solusi Geometri Schwarzschild untuk Dimensi 4+1 dengan Invarian Rotasi Isotropik.
Abstrak: Metrik Schwarzschild merupakan solusi eksak pertama dari persamaan medan Einstein dengan mangasumsikan metrik statik dan simetris. Metrik Schwarzschild yang ditemukan oleh Karl Schwarzschild masih dalam dimensi 3+1, namun seiring dengan teori-teori terbaru yang menunjukkan bahwa alam semesta tidak hanya di dimensi 3+1. Maka melalui penambahan dimensi, tujuan penelitian ini memperoleh solusi pada geometri Schwarzschild untuk dimensi 4+1 dengan memodifikasi koordinat bola yang invarian rotasi isotropik dan melalui penurunan rumus seperti koordinat bola, simbol Christoffel, dan tensor Ricci. Selain mendapatkan solusi ini, metrik Schwarzschild dimensi 4+1 dapat digunakan sebagai metrik dasar untuk memperoleh solusi blackhole dan wormhole pada dimensi 4+1. Hasil akhirnya, dengan memanfaatkan modifikasi koordinat bola, metrik Schwarzschild dapat dibentuk sehingga diperoleh solusi geometri Schwarzschild untuk dimensi 4+1.
Keyword: metrik Schwarzschild, persamaan medan Einstein, modifikasi koordinat bola, penambahan dimensi, invarian rotasi isotropik