• The Journal of Internal Korean Medicine
• /
• v.21 no.2
• /
• pp.267-274
• /
• 2000

Objectives : In order to investigate the curative effect of Daesihotang-sosunggitang-gagambang on the liver injury of rats induced by $CCl_4$ and d-galactosamine. Methods : All animals were divided into 5 groups, those were normal group(untreated), control group(administrated with 0.9% Saline solution), sample I group(65mg/kg administrated), sample II group(130mg/kg administrated), positive control group(administrated with 200mg/kg silymarine). After the liver injury of rats induced by ccl4 and d-galactosamine, and cheked the serum transaminase(GOT, GPT) alkaline phosphatase(ALP), lactic dehydrogenase(LDH) for enzyme activities and triglyceride, total cholesterol amounts for serum component were measured. Result : The inhibitory effects on the serum GOT, GPT, LDH, ALP activities, serum total cholesterol content level in liver injury of rats induced by ccl4 were noted in both sample I group and sample II group. The inhibitory effects on the serum GPT, LDH activities and serum total cholesterol content level in liver injury of rats induced by d-galactosamine were noted in both sample I group and sample II group. The inhivitory effects on the serum GOT activities and triglyceride content level in liver injury of rats induced d-galactosamine were noted in sample I group, but it is not recognizable statistically. In sample II, they were noted. Conclusions : Deesihotang-sosoonggitang-gagambang has treatment effect against liver injury in rats induced by ccl4 and d-galactosamine. So it is required to study about the actions of mutual relation of medicines and path-mechanism by experiment.

• Journal of Korean Society for Quality Management
• /
• v.46 no.2
• /
• pp.351-374
• /
• 2018

Purpose: The collective civil complaint problem is considered as important obstructive factor of the nuclear power plant construction project's success and quality. Therefore, this study demonstrate the factors which can affect the settling collective civil complaints, and also suggest the improvement of the resolution. Methods: This study collected the data of Kori Nuclear Power Division staff, local residents and Hanul Nuclear Power Division staff, local residents, and use them for analysis. Results: The results are twofold in the study: First, the 'Situation Recognition' and 'Mutual Cooperation' which are independent variables for solving collective civil complaints have proved to give positive influence on both the nuclear staff and the local residents about the complaint resolution outcome of the dependent variable. Second, the moderation variable 'Expected Benefit' on the influential relationship between the collective civil complaint resolution factor and the civil complaints resolution outcome proved to have a moderating effect only on the nuclear staff. On the other hand, moderation variables 'Time of SOC Business Implementation' and 'Time of Compensation' proved to have a moderating effect only for the local residents. Conclusion: According to the results, the staff have a positive opinion on the benefits of the nuclear power plant construction, while residents feel strongly that they do not get any benefit from the construction despite of tremendous investment and expected benefit in local area. As this results, policy implementation which is superable different understanding is required.

• Journal of the Korean Operations Research and Management Science Society
• /
• v.38 no.4
• /
• pp.35-52
• /
• 2013

Markowitz's portfolio selection model is used to construct an optimal portfolio which has minimum variance, while satisfying a minimum required expected return. The model uses estimators based on analysis of historical data to estimate the returns, standard deviations, and correlation coefficients of individual stocks being considered for investment. However, due to the inaccuracies involved in estimations, the true optimality of a portfolio constructed using the model is questionable. To investigate the effect of estimation inaccuracy on actual portfolio performance, we study the changes in a portfolio's realized return and standard deviation as the accuracy of the estimations for each stock's return, standard deviation, and correlation coefficient is increased. Furthermore, we empirically analyze the portfolio's performance by comparing it with the performance of active mutual funds that are being traded in the Korean stock market and the KOSPI benchmark index, in terms of portfolio returns, standard deviations of returns, and Sharpe ratios. Our results suggest that, among the three input parameters, the accuracy of the estimated returns of individual stocks has the largest effect on performance, while the accuracy of the estimates of the standard deviation of each stock's returns and the correlation coefficient between different stocks have smaller effects. In addition, it is shown that even a small increase in the accuracy of the estimated return of individual stocks improves the portfolio's performance substantially, suggesting that Markowitz's model can be more effectively applied in real-life investments with just an incremental effort to increase estimation accuracy.

• Asia pacific journal of information systems
• /
• v.20 no.4
• /
• pp.1-23
• /
• 2010

Some researches insist that, to participate in an e-partnership, a distributor needs a given level of trust to reduce the perceived risk of an e-partnership to his/her own threshold. However, other researches insist that if a distributor has only a given level of trust in his/her suppliers, irrelevant of the perceived risk level, he/she participates in the e-partnership. Thus, from the perspective of a distributor, this study built a trust model in which these two viewpoints were reflected. And then this study examined whether or not perceived risk mediates an influence of trust to e-partnership. The proposed trust model was tested with 265 questionnaires about a distributor-supplier e-partnership in food wholesale markets. The analysis results Indicated that perceived risk partially had a mediating effect between trust and e-partnership Intention. That is, of the two risk types, only perceived performance risk mediated an influence from competence trust to e-partnership intention. Relational risk did not play a mediating role between goodwill trust and e-partnership intention. This result Implies two managerial meanings. First, a distributor Intends to engage In e-partnership with his/her supplier, irrelevant of relational risk's level if goodwill trust level surpasses his/her own threshold. Thus, suppliers should concentrate more effort in developing goodwill trust than in reducing relational risk. To develop goodwill trust, they should endeavor to establish mutual interests and individual trust with their distributor, and to utilize institutional trust bases. Second, a distributor requires a certain competence In his/her suppliers to sufficiently reduce performance risk caused bye-partnership. Thus, to develop competence trust in e-partnership, suppliers should improve on any lack of competence and build a good reputation.

• The Journal of Industrial Distribution & Business
• /
• v.9 no.3
• /
• pp.69-79
• /
• 2018

Purpose - Competition among cities around the world are rapidly shifting from competition of production factors such as labor costs and quality of raw materials to competition between the consumption factors such as quality of life, settlement environment, culture, and place. The entry into the era of competition between consumption factors is not only attracting investment for strengthening city competitiveness, but also actively inducing urban image reconstruction and new image making. Therefore, various studies related to urban marketing are being carried out. The object of this study is to investigate the effect of city brand image on city brand recognition and city loyalty based on the questionnaire of external citizens about Changwon city. Research design, data, and methodology - The data were collected from 200 Seoul and Busan citizens. Reliability and exploratory factor analysis were conducted through the SPSS program, and confirmatory factor analysis and structural equation modeling were conducted by using the AMOS program. Results - As a result of the hypothesis test, six hypotheses were adopted among the nine hypotheses. In summary, pleasant image, dynamic image, and good administrative image have a significant positive impact on city brand recognition. The magnanimous image did not have a significant effect on city brand recognition. In the impact of city brand image on city loyalty, magnanimous image and good administrative image had significant positive impact on city loyalty. Pleasant images and dynamic images did not significantly affect city loyalty. In addition, city brand recognition positively influenced city loyalty. Conclusions - First, it is possible to say that there is an academic significance of this research in its contribution to regional revitalization by investigating mutual influences in urban aspect by combining place marketing with image, recognition, and loyalty. Secondly, kinetic images such as pleasant image and dynamic image have more influence on recognition, and static images such as magnanimous images have more influence on loyalty. So, further research will be necessary to establish theories. Finally, In order to increase city brand recognition and city loyalty to local city, efforts should be made to improve urban images such as pleasant image, magnanimous image, dynamic image, and good administrative image.

• Journal of Nutrition and Health
• /
• v.34 no.4
• /
• pp.409-416
• /
• 2001

In order to evaluate the effect of habitual Na and Ca intake on blood pressure regulation, we measured the habitual dietary intakes of Na and Ca, urinary excretion of Ca, Na and K, and plasma level of renin activity, aldosterone, and indices of Ca metabolism in 27 untreated hypertensive women and 30 age-matched normal women on a free diet. Hypertensive and total subjects were divided into four groups according to habitual dietary intakes of Na and Ca as low Na-low Ca(LNLC), low Na-high Ca(LNHC), high Na-low Ca(HNLC), and high Na-high Ca(HNHC). HNLC hypertensive group showed the lowest level of plasma renin activity, 25-(OH) Vit D$_3$, calcitonin and serum total Ca, and presented the highest level of PTH and urinary excretions of Na/K and Ca/Cr. There were no significant difference in plasma level of aldosterone and urinary excretion of Na and K among four hypertensive groups. When all subjects were divided into four groups according to the same method, HNLC group showed the highest level of blood pressure with no statistical significance and the lowest level of calcitonin and total serum Ca. The above results indicated that renin-aldosterone system and Ca regulating hormone has a mutual relationship in hypertension. Na and Ca may interact each other, rather than affecting independently blood pressure control. As a result, considering the fact that daily balance of Na and Ca intakes affects Na and Ca regulating hormones and urinary excretion of Na and Ca, it may be involved in blood pressure control. These results suggest that maintaining an adequate intake of Ca with less intake of Na may prevent from the risk of hypertension. (Korean J Nutrition 34(4) : 409~416, 2001)

• Journal of Pharmacopuncture
• /
• v.11 no.1
• /
• pp.201-209
• /
• 2008

Objectives : This study was designed to make beneficial proposal for clinical application on some of the most common disorders treated by Oriental medicine by analyzing treatment process and prognosis. Methods : Number of peculiar attributes pertaining to a specific disorder were analyzed and based on those attributes, patterns associated with process and prognosis were interpreted in reference with classical literatures. Results : 1. Factors which can influence the progression and prognosis include time of onset, intensity of symptoms, course of passage, effects of risk factors, condition of the patient's righteous qi(正氣), accuracy of differential diagnosis made by the practitioner, accuracy of treatment methods, and other unexpected external influences. 2. Correlation between the condition of disorders and treatment progression is closely associated with proper treatment procedures and performances. The time of onset and intensity play critical roles in the treatment process and prognosis and showed pattern tendency with mutual interactions. 3. When there is complication of various disorders, it is ideal to give priority to more urgent illness and take care of moderate illness later. If there isn't any correlation between disorders, treat them in the order of acute to chronic disorders. The approach is reversed when disorders are related, treating in the order of most chronic to most acute. 4. In a case of complication of various disorders, depending on the disorder being acute or chronic, intensity, and accuracy of treatments, either a domino effect or gradual fade out of symptoms were witnessed. 5. The concept of "Five Evils Theory" according to Nan Jing(Difficult Classic) is essential in grasping disease progression due to interrelationships between zangfu organs. Conclusions : Predicting of disease process and prognosis for vast array of disorders treated by Oriental medicine is a very difficult task, yet evaluating the disorder's peculiar properties and influential factors resulted in few principles which can be effectively applied into clinical applications.

• Journal of Korean Society of Industrial and Systems Engineering
• /
• v.32 no.3
• /
• pp.49-58
• /
• 2009

Healthcare organizations need mutual cooperation among various medical professionals in order to carry out the performance of their duties spite of haying a strong job specialization and independence based on license. However, spite of the importance of leadership roles, there have not been enough researches dealt with leadership effect under the complex duties' relationship of a healthcare organization. This study suggested a new model by combining characteristics of leadership style, job satisfaction, and organizational commitment using Structural Equation Model (SEM). The data were self-administered questionnaires collected in 2006 from 437 employees (nurses, medical technicians, and administrative staffs) of 5 hospitals located in Seoul. The items of questionnaire were composed as a method of choosing new leadership style based on the Bass's standardized questionnaire on a Iransactionaljtransformational leadership combining the Leader Behavior Description Questionnaire-XII (LBDQ-XII) of the Ohio State University and Graen and Uhl-Bien's LMK scale through simulation techniques responding to organizational commitment. As a result, the leadership style increasing employees' self-confidence and having continuous response relationship between managers and employees improved their discretion and empowerment as well as worthwhileness and pride. However, the leadership style emphasizing reward and a sense of duty brought about a bed result that was not able to effectively respond to employees' discretion and empowerment and even weakened their worthwhileness and pride. After all, the leadership style based on vision and change had an effect on organizational commitment but the other one based on reward and a sense of duty seemed to be unsuccessful in organizational commitment. Therefore, the desirable leadership in a healthcare organization should be based on employees' self-confidence and continuous response relationship between managers and employees.

• The Journal of Fisheries Business Administration
• /
• v.43 no.3
• /
• pp.75-87
• /
• 2012

Today, the Korean fisheries is undergoing significant hardships, both domestically and internationally. While declining amount of catch, ascending international oil prices and others pose a compelling challenge to the fishing sector, the ever strengthening influence of international institutions related to fisheries and international trade organizations also compel to bring about myriad of changes in the realm of fishery products. Against the backdrop, this study attempted to examine the fisheries catch, aquaculture, service, processing fields in terms of its rippling effect and of how the industry has been changed by analyzing the past and present through an input-output analysis. As for research methods, 168 items of the input-output tables in 2000, 2005, 2009, and 2010 were integrated to form and classify 32 sectors (28 basic sectors + catch, aquaculture, fishery service, processed fishery products) so as to generate production inducement coefficient, sensitivity coefficient, and impact coefficient. The analysis results revealed that : though the linkage effect of fishery industry was not very sizable, the impact coefficient of the processed fishery products was high; the consumption and investment coefficient sector among production inducement coefficient was on an upturn trend ; the export coefficient was tended to decline. In the future research, it is necessary to carry out a study based on the integration of detailed classification (404 sector) and a study and analysis of fishery industry by different regions through the inter-regional input-output tables. The fishery industry is one of the crucial industries in Korea. The fishery industry is not only important in its own right but also significant as it exerts influence over other industries. Therefore, it is required that there should be more investment and supports for the development of the fishery industry, and pay efforts to ensure that the investment and development could lead to mutual growth for both the fishery and other various industries.

• Journal of the Korea Convergence Society
• /
• v.11 no.7
• /
• pp.297-308
• /
• 2020

The purpose of this study is to compare and examine the understanding of the mutual relationship between the welfare attitude of the recipients and the non-recipients of the National Basic Livelihood Security. For this purpose, data from the Korea Welfare Panel Study 2016 (11th) were used and the data were analyzed by using difference analysis (DID) and structural equation AMOS after matching propensity scores (PSM) to 382 adults. The main results are as follows: First, Welfare attitudes were not significantly different for the National Basic Livelihood Security than the non- recipients. Second, Positive program welfare policy had a significant effect on welfare attitude for both the recipients and non-recipients of the National Basic Livelihood Security. Third, The value recognition government trust and social awareness did not have a significant effect on both the recipients of the National Basic Livelihood Security and the non-recipients. The results of this study provide basic data the establishment of policy directions to improve the quality of life of members of society.