Judul: Analysis Comparison Fisheries of Purse Seine in Lampulo Fishing Port Banda Aceh
Abstrak: This research was realized in January - February 2013 at Lampulo Fishing Port Banda Aceh. The method was used in this study such as descriptive method and investing criteria analysis. The Respondent were determined by purposive sampling for arrest facilities ownership. The Patrons who have infrastructure (20 persons) to get repayment and clien (20 persons) also get it as a fee from their job. The purpose this study were: (1) Comparison financial feasibility of purse seine fisheries in Lampulo. (2) Analyzing profit-sharing system for every purse seine patterns in Lampulo The calculations results of the purse seine fisheries feasibility between the daily and weekly seems from the businesses criteria value respectively, there were adventages and repayment period was quickly too with ROI value is th greater than capital cost. Then, the investing feasibility calculation result in purse seine fisheries both of daily and the weekly were viewed of each investing criteria value, where NPV > 0, Net B/C > 1 and IRR> 10% than interest rate. It caused purse seine fishing businesses in Lampulo still qualified and feasible to continued. The profit-sharing traditional system in Lampulo showed unbalanced between patrons and clients income. The patrons income is greater. Moreover, profit-sharing among clients (fishing master, collector, mechanical dan ABK). Proceeds from sales of the fish (gross income) reduced by 35% (10% for treatment, 10% for Toke bangku, 10% for fishing master and 5% for the interpreter engine). Later, it was reduced with operational costs. The arrest result was shared between owners and clien based on the net income divided into 3 section, one part for the crew and the two parts to the owner.
Keyword: feasibility analisis, purse seine, patron clien, profit-sharing system

Judul: Fisheries Development Analysis of Purse Seine Fisheries Aceh Besar District
Abstrak: Purse seine is one the productive fishing gear for fishing pelagic fishes. Fishing capacity is one the important issue in sustainable fisheries. This study aimed to measure fishing capacity of purse seine in Aceh Besar district, estimated the maximum economic yield (MEY) the targeted pelagic fishes, and formulate management strategies purse seine in the district of Aceh Besar. Fishing capacity was analyzed using the data envelopment analysis (DEA) method based on fishing capacity efficiency of monthly total catch as single output, from September 2009 to August 2010. Fishing vessel was used as decision making unit (DMU). Fixed input consists gross tonnage (GT), engine horse power (HP) and length of webb. Variable input consists number of crew, lamp power (watt), hold capacity (ton), and number of trip. The result showed that fishing capasity, 17 vessels reached optimum (CU=1), and fishing capacity of purse seine was 257 ton/year/unit. Thus bioeconomic analysis of pelagic fishes showed that MEY reached at 3,753.37 ton/year and optimum effort at 8,623 trip/year with total cost Rp 34,992,314,500 year and total revenue Rp 51,643,083,629. Management strategy for purse seine fishery in Aceh Besar district is the development of technology, human resource development and the role of institutions such as institutions laot commander.
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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