Judul: Produktivitas Armada Penangkapan Pancing di Sekitar Rumpon, Palabuhanratu Jawa Barat
Abstrak: Fishing line with rumpon is the most widely used by fishermen in Palabuhanratu water’s, Sukabumi. This research aims to estimated productivity of fishing line with rumpon in different season, to figure out fishing ground, and total catch of training vessel PSP 01 operated in PPN Palabuhanratu water’s. Surveys method was used in the research and collected the primer and secondary data. The analysis of catch per unit effort (CPUE) was estimated to determine the position of fishing ground of tuna. Result of the research showed that off season during December to February, normal season in March until May, October until November, and peak season from June to September. The productivity of fishing line was increased from off season to peak season. The average CPUE from 2007 to 2011 comprises of 419,88 kg/trip (off season), 582,07 kg/trip (normal season I), 734,47 kg/trip (normal season II), and 818,90 kg/trip (peak season) respectively. The fishing ground of training vessel PSP 01 is located at the southern water’s of Palabuhanratu (07035’188 – 07059’874 South dan 106018’096 – 106025’112 East).
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Judul: Penilaian Unit Penangkapan Pancing Rumpon di Palabuhanratu, Kabupaten Sukabumi, Jawa Barat
Abstrak: Tuna total production with rod fishing increase 0.73% in 2011, and total of rod fishing unit increase 1.55% in the same time. Technical and economical analysis must be done for we know how the feasibility of rod fishing unit’s business. The objective of the research is to describe the rod fishing unit, to calculate the benefit, and the investment of rod fishing unit’s business in Palabuhanratu waters. The research is case study of rod fishing unit’s business. Data analysis used description, technical and financial analysis. There are four types of rod fishing, those are troll fishing, pancing jerigen, pancing layanglayang and hand line. The rod fishing is not difficult in operation. Business of the rod fishing unit can give a profit Rp 67,245,500.00 and payback period is 4.2 years. The value of NPV is more than 0 (zero), Net B/C is more than 1 and IRR is more than value of interest rate. The business of rod fishing unit is not sensitive to the fuel’s price increasing. The decision makers can help the fishermen to improve their capital from finance institution, and do the detail technical analysis about rod fishing unit operation and its influence to stock equilibrium
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Judul: Mathematical model of Hematopoietic Stem Cell in Chronic Myelogenous Leukemia with and without Therapy
Abstrak: Leukemia or blood cancer is a diverse group of neoplastic disease, characterized by the multiplication of abnormal leukocytes or malignant transformation of blood-forming cells in bone marrow and lymphoid tissues. One of the most common types of leukemia is Chronic Myelogenous Leukemia (CML), which is usually diagnosed by the presence of certain chromosomal abnormalities, the so-called Philadelphia chromosome (Ph). One of the treatments of CML is Granulocyte Colony-Stimulating Factor (G-CSF). In this paper, we discuss two Hematopoietic Stem Cell (HSC) models, i.e. HSC without treatment and HSC with G-CSF treatment. The model of HSC without treatment included three equations representing the dynamics of HSC, leukocyte and platelet. Whereas, the model of HSC with G-CSF treatment includes the previous three equations and adds two more equations representing G-CSF injection and G-CSF circulation. The stability behavior of the system approaching the equilibrium points in the simulation study is carried out using Mathematica 7.0. The simulation results show that the G-CSF treatment can successfully decrease the number of HSC, which means reducing the CML.
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