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: Efficiency Analysis of Purse seine Fishing unit in Coastal Fishing Port Lampulo, Banda Aceh.
Abstrak: The fisheries production in Banda Aceh was dominantly contributed by purse seines (76%) for the last five years (2007-2011), the increase in production was due to the increasing number of purse seine fishing unit (DKP Aceh Province 2012). Catches was strongly influenced by the fishermen in using of production factors. Each purse seine in PPP Lampulo had a diversity of production factors which would affect to production result. It has caused many of the fishermen increased the used of production factors without regard to the efficiency of its use. Therefore, fishermen should be more careful and wise (efficient) in using production factors for fishing operations to keep the obtained results or maximum revenue. The objectives of this study are to analyse of productivity and effeciency of purse seine units that based in PPP Lampulo. Hopefully, this study can contribute theory of production in the fisheries sector, to provide input for fishermen as consideration of the purse seine fishery management. There were some factors that support the production catches of purse seine fishing unit such as the size of the vessel, engine power, length of nets, net height, number of crew, fuel, number of light, the amount of ice, clean water usage and supply costs were analyzed using the Cobb-Douglas approach. Productivitiy calculation had done by using the approach of purse seine catches for the year divided by amount of Gross Tonnage and catching trip. The results showed the highest productivity per trip was 1.86 tons/trip in 2012 and the highest productivity per GT was 9.97 tons/GT in 2011. Production factors which significantly affect to catch of purse seine were engine power, net height, number of crew, number of lights and supply cost. Analysis of the technical efficiency towards 54 vessel showed that the vessel engines power production factors (-0.432), the number of crew (-1.116), and number of lights (-0.148) the value of its production elasticity were inefficient (Ep <0), whereas purse seine net height (0.467) was at the rational production stage (0<Ep<1) and factor costs of production supplies (2.181) was efficient (Ep>1) which means inefficient use of production factor. Economic efficiency for the use of production factor wass inefficient because the value of NPMxi/PXI<1.
Keyword: Purse seine, production factors, productivity, efficiency.

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