A Study on the Effects of Factors on the Efficiency Changes of Korean Fishery

This paper is a study on the factors affecting the change in measured annual fishing efficiency and effectiveness of Korea. In summary, the results are as follows. Fishing industry can be divided into fishery capture and Marine Aquaculture. In case of fishery capture efficiency is that 1990-1997`s crste and vrste resulted 0.938 and 0.969, another value of scale is 0.968. It is high level than others. Crste, vrste, scale was determined to be 0.769, 0.827 and 0.931 during the period 1998-2008. Value of 0.668, 0.828, 0.808 was measured as crste, vrste, scale during 2009-2012. In case of Marine Aquaculture efficiency is that 1990-1997`s crste and vrste resulted 0.845 and 0.946, another value of scale is 0.885. It is lower level than fishery capture`s value. Crste, vrste, scale was determined to be 0.737, 0.968 and 0.757 during the period 1998-2008. Value of 0.967, 0.992, 0.975 was measured as crste, vrste, scale during 2009-2012. Take the case of fish capture of the intercept is 0.9869, seafood Producer Price Index (X1) is -0.0111, seafood import price index (X2) is 0.0075 and dummy variable (X3) is -0.0097. The independent variable (X1, X2) showed significant at the 5% significance level except for the dummy variables (X3). In case of marine aquaculture of the intercept is 0.9059, seafood Producer Price Index (X1) is 0.0111, seafood import price index (X2) is -0.0112and dummy variable (X3) is 0.1562. Three (X1, X2, X3) of the independent variable showed significant in both the 5% significance level.1. 서 론 1 2. 한국 어업 5 2.1 어업의 정의 5 2.2 어업의 산업적 특성 7 2.3 한국 어업사 9 2.4 한국 어업 현황 12 2.4.1 어항 현황 12 2.4.2 어업 종사 인구 14 2.4.3 어업 총생산 15 2.4.4 천해양식업 현황 17 2.4.5 어선세력 18 3. 연구방법론 3.1 자료포락분석 방법론 20 3.2 CCR 모형 22 3.2.1 투입지향 CCR 모형 22 3.3 BCC 모형 27 3.3.1 투입지향 BCC 모형 27 3.4 규모의 효율성(SCALE) 29 4. DEA방법론 선행연구 31 5. 실증 연구 5.1 연구자료 35 5.2 효율성 평가 37 5.2.1 포획 효율성 평가 37 5.2.2 양식 효율성 평가 40 5.2.3 포획 및 양식 효율성 비교 43 5.3 효율성 변화 원인 분석 45 5.3.1 포획 산업 효율성 변화 영향요인 분석 46 5.3.2 양식 산업 효율성 변화 영향요인 분석 48 6. 결론 6.1 연구 결과 요약 50 6.1.1 포획 산업 효율성 연구 결과 요약 50 6.1.2 양식 산업 효율성 연구 결과 요약 51 6.1.3 회귀분석결과 요약 51 6.2 정책적 함의 52 6.3 한계점 52 참고문헌 5

Prognostic serological markers of Henoch-Schönlein nephritis

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Relationship of Glomerular Basement Membrane Alterations to Epithelial Cell Structure and Clinical Parameters in Alport Syndrome

Purpose : This study was performed to evaluate the relationship between glomerular basement membrane (GBM) alterations to epithelial cell (EpC) structure and renal function in Alport Syndrome (AS) patients. Methods : Fifteen patients diagnosed with AS (4-26yrs) were examined. The GBM in AS was categorized as : C1) normal, C2) minor alterations (widening of lamina rara interna or externa without lamina densa change), C3) nonspecific splitting of lamina densa, C4) basket-weaving pattern of lamina densa splitting. The length of each GBM portion along the epithelial side was measured on the systematically obtained electron microscopic photographs. Furthermore to obtain an objective assessment of the degree of glomerular EpC foot process change, the number of slit pores along $10\;{\mu}m$ of peripheral GBM in each category was obtained. Results : The percentage of normal GBM portion (C1) correlated inversely with daily protein excretion (g/day/㎡, P<0.05) and sum of the percentage of abnormal GBM portion (C2+C3+C4) had direct correlation with daily protein excretion (g/day/㎡, P<0.05). There were no significant relationships between the percentages of other categories of GBM alterations and creatinine clearance or protein excretion. There were no significant relationships between of creatinine clearance in relation to normal GBM(C1) portion as well as that in relation to sum of the percentage of abnormal GBM portion (C2+C3+C4). GBM abnormality did not correlate with age at biopsy. Conclusion : The extent of GBM structural abnormality is related to proteinuria in AS but the epithelial response is uniform even though the GBM ultrastructural lesions are notope

Prevalence of Vesicoureteral Reflux According to the Timing of Voiding Cystourethrography in Infantile Urinary Tract Infection

PURPOSE: To evaluate the prevalence of vesicoureteral reflux (VUR) according to the timing of voiding cystourethrography (VCUG) in infantile urinary tract infection (UTI). METHODS: The data of 134 infants (1-12 months) with renal cortical defect in 99mTc-2, 3-dimercaptosuccinic acid (99mTc-DMSA) scan with a diagnosis of UTI in two hospitals from 2000 to 2010 were retrospectively analyzed. The VCUG was performed after 2 weeks from the diagnosis of UTI in Group I (n=68), and the VCUG was performed within 2 weeks from the diagnosis of UTI in Group II (n=66). RESULTS: There were no significant differences between the two groups in the duration of fever, white blood cell count, C-reactive protein levels, and abnormalities in ultrasonography (P>0.05). There was no significant difference between the two groups in the prevelence of VUR, bilateral VUR, and severe VUR. VCUG-induced UTI was detected 16 (23.5%) of patients in whom the procedure was performed 2 weeks after the diagnosis, and none of VCUG-induced UTI occurred in those in whom the procedure was performed 2 weeks within the diagnosis. CONCLUSION: We conclude that the prevalence of VUR according to the timing of VCUG did not differ between the two groups in infantile UTI with renal cortical defect in DMSA scan. We also found that performing VCUG with antibiotics can decrease risk of VCUG-induced UTIope

Comment on: A case of post-streptococcal glomerulonephritis with diffuse alveolar hemorrhage

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Pharmacokinetics of Cyclosporine A and Its Therapeutic Effect in Children with Renal Diseases

Purpose : To know the body handling properties and anti-proteinuric effect of cyclosporine A(CsA) in children with renal diseases, 34 patients with nephrotic syndrome or glomerular diseases were included to treatment trials and evaluated. Methods : Microemulsion formula CsA, 5 mg/kg/day was administered orally in two divided doses for 9.3?.6 months. Pharmacokinetic studies of CsA were done twice at beginning and closing of 12 months' CsA therapy. Results : The steady state CsA pharmacokinetic parameters of 34 patients were as follows; Tmax : 1.64?.84 hr, Cmax : 788?54 ng/dL, C12 : 58.7?3.2 ng/mL, Cavg : 246?6 ng/mL, AUC : 2,949?,156 ng hr/mL, Vd : 4.03?.45 L/kg, CL : 9.69?.27 L/hr, T1/2 : 5.31?.37 hr. C2 was the best to predict the CsA AUC(R=0.896, P<0.001). Body surface area based dosage(mg/m2/d) correlates best with AUC. Intra-individual CsA pharmacokinetic changes were not found after 12 months' therapy. Anti- proteinuric effect of CsA was considerable; 88.9% of primary nephrotic syndrome and 62.5% of secondary glomerular diseases was responsive to CsA thearpy. There was no serious complication and CsA treatment was well tolerated by the pediatric patients. Conclusion : CsA therapy for difficult renal diseases with proteinuria was effective and safe. For better AUC prediction of CsA, body surface area based dosage(mg/m2/d) and C2 monitoring are recommended in children with renal diseases.ope

The Prevalence, Physical Characteristics and Diagnosis of Nutcracker Syndrome

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A clinical study of systemic lupus erythematosus in children

Purpose Systemic lupus erythematosus (SLE) is a chronic multisystemic autoimmune disease with complex clinical manifestations. It probably involves genetic, environmental and immunologic factors. In this study, we investigated the clinical manifestations, laboratory findings and prognosis of pediatric SLE to aid clinical care of pediatric SLE. Methods The data of 45 patients who were diagnosed as pediatric SLE in Severance Children's Hospital from Jan. 1996 to Dec. 2005 were analysed retrospectively. Results The mean age at diagnosis was 10.8 (0-15) years old. And the ratio of male to female patients was 1:4. The initial manifestations were facial edema (51.1 percent), malar rash (44.4 percent), and fever (28.9 percent). The ANA (97.8 percent), anti-ds DNA antibody (82.2 percent), lupus nephritis (71.1 percent), malar rash (71.1 percent), and cytopenia (66.7 percent) were the most common findings among the classification criteria by ACR (American College of Rhematology, 1997). Conclusion Clinical manifestations and prognosis are various in pediatric SLE. Intensive studies of SLE in children should be continued for more effective treatment.ope

The Clinical Usefulness of Cystatin C in Evaluating RenalFunction in Children with Various Renal Diseases

Purpose GFR(glomerular filtration rate) is a fundamental parameter in detecting renal impairment and predicts the progression of renal disease. Because serum creatinine has several disadvantages, serum cystatin C has been recently proposed as a new endogenous marker for GFR. We compared serum cystatin C with creatinine and creatinine clearance to investigate the clinical usefulness of cystatin C. Methods We retrospectively analyzed 46 patients(60 case numbers) who had various renal diseases and classified them into 3 groups according to creatinine clearance(Group 1 : CrCl 60 mL/min/1.73m2). We measured serum creatinine, cystatin C and creatinine clearance and also analyzed the correlations among them. Results Serum cystatin C and creatinine showed a similar correlation to creatinine clearance (r=0.685, r=0.640, respectively) and showed similar diagnostic accuracy in detecting decreased GFR(AUC, cystatin C 0.829 vs. creatinine 0.826, P=0.848). Serum cystatin C showed a greater sensitivity for detecting a decreased GFR than creatinine in Group 2 and 3(Group 1 : 100% vs. 100%, Group 2 : 70% vs. 35%, Group 3 : 46% vs. 15%). Conclusion Serum cystatin C could be a useful endogenous marker for GFR and would be superior to serum creatinine in early detection of renal impairment in pediatric patients with renal diseases.ope

Current problems in the diagnosis of Henoch-Schonlein purpura according to the ACR or EULAR/PReS criteria

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