Judul: Status Gizi Keluarga Nelayan di Kabupaten Halmahera Utara, Kaitannya Dengan Pola Konsumsi Hasil Perikanan
Abstrak: Halmahera Northern districts is an area that has the natural resources of marine source of iodine is high enough.Stock Fishery North Halmahera by 89.865 tons/year. But in reality the results of national survey of mumps since 1980 until 2003, North Halmahera including areas classifield as severe endemic Iodine Deficiency Disordes (IDD). IDD be one causes of decreased quality of human resources (HR) sector in a region. Therefore, the purpose of this study include: 1). Identification the conditions and diet of fishermen families; 2). Analyze the status (level endemism) of IDD in a family of fishermen in the district North Halmahera.; and 3). To determinine the factors (diet) most likely to be the cause of IDD in the district North Halmahera. This research was conducted in 2009 in 10 coastal district in North Halmahera. Identification of goiter or IDD conducted by Palpation/Tactile on the neck and measurement of iodine levels in urine of respondents who were purposively select (purposive sampling) 384 fishing families. Furthermore, respondents were asked to complete a questionnaire or be interviewed about the identity and level of knowledge and diet. Based on interviews or questionnaires and the information that majority of the respondents consume foods containing iodine is high (>100 μg/day) and goitrogenic substance consumption level is high (>10 mg/day), while the results of urinary iodine is obtained 0,5% higher, 84,4% of normal and 15,1% lower. Results palpability thyroid gland is known that the total goiter rate (TGR) of 11,7% at district level who fall into categories of mild endemic TGR with referente to the criteria of WHO. This value is lower than the National Goitre Survey in 1980/1982 and the results of the survey year in which the cluster 1995/1996 North Halmahera island of the West with 54,7% TGR. At district level, District Central Tobelo a district that most people with high levels of endemicity of IDD (TGR = 30%) while the lowest Kao District (TGR = 3,3%). Results Logistic regression analysis found that consumption of foods containing goitrogenic substances causing or likely to affect the IDD in fisher family of North Halmahera. Consumption of iodized salt a chance to reduce or prevent IDD or goiter by 0,027. While the consumption of foods containing goitrogenic substances likely to cause or increase the IDD or goiter of 0,101.
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Judul: Pengembangan Perikanan Tangkap Berbasis Komoditas Unggulan di Kabupaten Halmahera Utara
Abstrak: North Halmahera Regency with its sea area of 19536.02 km2 (78%) has the potential of fish resources (standing stock) accounting for 664,382.48 tons with sustainable potential fish production (the Maximum Sustainable Yield / MSY) of 347,191 tons per year, i.e., 211,590 tons of pelagic fish and 135,005 tons of demersal per year. The problem in the development of capture fish in North Halmahera is that its excellent commodities are as yet unknown and the policies in the fishery production are not based on excellent commodities. This research is to examine the superior commodities of fishery production, and the policies in capture fishing production in order to increase the income of fishermen. To determine the excellent commodities, the following analyses were made: (1) production continuity, average production, prices, processing and marketing, (2) Method of Location Quotient (LQ) and (3) SWOT Analysis. The results showed that of 38 species of fish that were analyzed, 31 species were of a continuous type and 7 species of non-continuous type. The average fish production is below the average production of all types of fish except for cakalang fish of 11,131.472 tons and flying fish of 4405.296 tons per year. The fish price is generally below average price of all types, except for the following types of fish: beronang, kerapu, lencam, kakap, and kurisi, the prices of which are higher than the average price. The fish products marketed in the local market / overseas are for example kerapu, cakalang and tuna. Fish products are always marketed in fresh form. Only julung-julung fish is marketed after it is processed by fumigation. Three kinds of fish are also exported they are kerapu, cakalang and tuna. The results of LQ calculation show that there are 12 species of fish with a value of LQ>1, namely: kuweh fish, kerapu, kerong-kerong, teri, tembang, julungjulung, tongkol, lemadang, cakalang, mackerel tuna and cucut. Based on the scoring analysis of commodities in terms of production continuity, production, pricing, processing, and marketing associated with the value of LQ, six kinds of fish as excellent commodities in North Halmahera Regency are cakalang, kerapu, anchovies, julung-julung, tuna, and tongkol. Flying fish, although its production is quite high and can be improved, has the value of LQ <1, so it can not be recommended as a superior fish species. Based on the results of the SWOT analysis, there are six government policies of North Halmahera regency related to the development of capture fisheries, increasing fishing fleet is a top priority followed by the development in the processing of captured fish. Both policies are closely related to labor absorption and economic improvement.
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Judul: Konstruksi aritmetika kurva eliptik F(2m) supersingular dan non-supersingular untuk skema kunci publik ElGamal
Abstrak: Algoritme ElGamal adalah salah satu algoritme kunci publik dengan aritmetik modular p yang mempunyai struktur grip siklik Z(p). Tingkat keanaman algoritme ini terletak pada pemecahan masalah logaritme diskret dari Z(p). Akan tetapi, tingkat keamanan tadi tahun ke tahun semakin menurun yang disebabkan kemampuan pemecahan algoritme diskret semakin meningkat. Untuk memenuhi tingkat keamanan yang memadai dibutuhkan p yang cukup besar yang menyebabkan proses enkripsi dan dekripsi menjadi lambat.
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