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이충규(Choong-Kyu LEE),김준석(Jun-Suk KIM) 한국항만경제학회 2002 韓國港灣經濟學會誌 Vol.18 No.2
Despite the importance and necessity, the 3PL has not been activated to date. Among many views, customers claim that logistics service provider(LSP) are not prepared or capable of offering satisfactory 3PL services, while LSP emphasize the lack of mutual trust, closed corporate culture of the customer and excessive demand for reducing the costs. With this keeping in mind, it surveyed difference of perception between users and providers of 3PL services in terms of the actual status of using 3PL services, the degree of satisfaction and key factors for selecting 3PL provider through the questionnaire.<br/> As shown in this study, 43.3% of the respondents outsourced logistics services. However, Most company outsourced only inland transportation (49.5%) which is a simple and limited scope of 3PL services, but it also indicated that the percentage of users have ranged was less then 10% in outsourcing their whole logistics sector to 3PL provider and employing other logistics functions.<br/> Among respondents, a majority of the service provider stated that they offered satisfactory cost-saving to the customers, while users felt that the degree of satisfaction for using 3PL services was evaluated as at an average level and they more highly regarded the strong partnership of their 3PL provider rather than the saving of cost and improvement of customer's services. Moreover, in contrast to the 3PL providers which regard the most important factor for selecting 3PL service provider is the logistics cost quoted, users of 3PL services felt that the quality of services was more significant than the reduction of cost, and this tendency for selecting 3PL providers was shown in more advanced countries. While users of 3PL services indicated that the main reason for not using 3PL services was to avoid disclosing information of their business and it costs much for employing 3PL providers than doing themselves, 3PL providers thought it was due to reluctancy of opening information and resistance from the logistics division engaged in logistics activities concerned.<br/> Accordingly, providers and users of 3PL services should trust each other and prepare plan to activate 3PL services under the collaborative relationships as soon as possible.
갑상선종양환자에서의 혈청 Thyroglobulin 치에 관한 임상적 고찰
이충규,유병희,이우형,유형준,이종석 대한핵의학회 1983 핵의학 분자영상 Vol.17 No.1
Serum thyroglobulin (Tg) was measured by radioimmunoassay in 81 patients with thyroid tumor who were treated in the department of Internal medicine of National Medical Center from January, 1981 to June, 1982. The results were as follows: 1) The mean serum thyroglobulin level in thyroid tumor was significantly higher than normal subjects (p〈0.001). 2) The mean serum thyroglobulin level in benign tumor was lower than malignant tumor (p〈0.05). 3) The thyroid carcinoma with metastasis had significant high level of serum thyroglobulin than without metastasis (p〈0.001). 4) The mean postoperative serum thyroglobulin level was significantly lower than preoperative level (p〈0.001). Data from our study show that serum thyroglobulin determination is useful for assessing the presence of malignant thyroid tumor, metastasis and the extent of residual or recurrent thyroid cancer after surgery.
각종 간질환에서의 B 형 간염 Virus 표식자 발현에 대한 임상적 고찰
김종화,이충규,김광일,유병희,이종석 대한핵의학회 1983 핵의학 분자영상 Vol.17 No.2
By radioimmunoassay, serologic markers of Hepatitis B Virus were studied in 44 patients with acute viral hepatitis, 10 patients with chronic persistent hepatitis, 10 patients with chronic active hepatitis, 44 patients with liver cirrhosis and 25 patients with primary hepatocellular carcinoma. The results were follows: 1) HBsAg was present in 77.2% of AVH, 40% of CPH, 80% of CAH, 55.1% of LC and 68% of PHC. In this HBsAg positive groups, all but one in liver cirrhosis had Anti-HBc. 2) Anti-HBs was most commonly detected in CPH and accompanied by Anti-HBc except one case in AVH. 3) Anti-HBc was the only marker detected in 11.4% of AVH, 20% of CPH, 20% of CAH, 16.3% of LC and 8% of PHC. 4) HBeAg was most commonly found in HBsAg-positive CPH but Anti-HBe was most frequently detected in PHC. 5) The absence of HBV markers was noted in 2.3% of AVH, 10% of CPH, 8% of PHC except CAH and LC.