Judul: Identifikasi Keselamatan Kerja Nelayan pada Aktivitas Payang di Palabuhanratu, Sukabumi Jawa Barat
Abstrak: The study aimed to describe the fishing activity of the boat seine also to identify the potential hazard or the working risk on the operating of the boat seine in Palabuhanratu. A case study of safety was used on one of the boat seines in Palabuhanratu. Descriptive analysis was used to describe the activities of pre-operation, operation process until post-operation process of the boat seine. Detail description included of the fishing unit and the fishing activity on the boat seine fishery. Job safety analysis (JSA) was used to examine the working method and to determine the potential hazards at every step of the boat seine activity. Based on the result, it was known that the activity of the operation of the boat seine consisted of 13 events, which was divided into 3 stages. The first was pre-operation, which were from preparation on the fishing base, transfer to the ship, sailing to the fishing ground and the gear preparation. The second was operation process, which were setting and hauling the fishing gear. The third was post-operation, which were handling the catch, sailing towards the harbor and then transferring the equipment and the catch from the ship to the dock. JSA analysis result showed that the risk arising was the category of accident which were not severe, severe and very severe. The risk caused by the lack of safety equipment, the tool operation and the skill of the boat seine fisherman. Identified potential hazards at payang activity is 92% in the minor accident class category. Potential hazards in accident class category have a percentage of 8% and the percentage of severe accident class category is 0%. The risks of potential hazards in boat seine operation are caused by the lack of safety equipment, tools and fishermen skills.
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Judul: Fishermen work safety at fishing operation on payang in Palabuhanratu, West Java
Abstrak: The main cause of marine accidents resulting in loss of human lives is purely human error. Specifically on the capture fisheries, as many as 80 percent of marine accidents are caused by factors of human negligence (FAO, 2009). The purpose of this study is to inventory and describe all hazards and possible consequences in every aspect and stage, inventory and identify those aspects related to the management of safety of fishermen, both institutionally, existing regulations, human resources, working conditions and safety design models fishermen work at the sites. Scope of the study was limited to payang fishing activities in fishing operations in Palabuhanratu. The research was conducted in October 2011 - August 2012, in district Palabuhanratu West Java, especially in PPN Palabuhanratu. This research activity was carried out by conducting literature studies and interviews with the aim of collecting primary data in the form of direct observation and interviews/questionnaires to all the components, either directly or indirectly involved. Collection of secondary data fishery, related regulations, journals, and other related literature. Policy and institutional analysis be descriptive. The next method is the Formal Safety Assessment (FSA), the human element can be incorporated into the FSA process using human reliability analysis (HRA). HRA in this study quantitatively. To complete the picture details the development of systems analysis models to understand and make decisions related to SMK3. Activity that has a chance of failure risk was greatest in gear operating activities during setting. Consequences of accidents greatest opportunity in hauling activity. Risk control is done with the selection of a competent crew, plan fishing/sailing, designing safe work procedures, use of equipment as needed, using personal protective equipment and conditioning healthy working environment, as well as coordination among crew always do. Need to restructure relating to the management of fishing safety associated with existing policies and institutions, so that the mutually synergistic implementation. Analysis of the safety management system of the fishermen showed no systemic features and characteristics of the organization who have learning disabilities. (A) Each stakeholder tends to stand in their own point of view or interest. (B) Completion of the problems in safety management fishermen tend gradually, not structured and are regional and do not change the mindset. (C) In the safety management practices on certain aspects (control) often occurs transitional resources for the benefit of others. This transfer shows that the issue of safety management is not a priority fishermen and not something that should be addressed immediately. (D) Aimed of fishing safety management is not up to the level of implementation.
Keyword: fishermen work safety, Formal Safety Assessment (FSA)

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