서비스 기업에 대해 고객이 인지하는 공정성 모델에 관한 연구

유병희(Grace (Byung Hee) Yu),이동진(Dong Jin Lee) 연세대학교 경영연구소 2006 연세경영연구 Vol.43 No.2

지각된 수출업자의 보상 능력이 호혜 및 거래성과 인식에 미치는 영향에 관한 연구

유병희(Byung-Hee Yu) 한국무역연구원 2018 무역연구 Vol.14 No.1

Reciprocity in the importer-exporter relationship is one of the crucial factors of international business success towards maintaining successful longterm relationships. The purpose of this study is to investigate a possible antecedent of reciprocity, namely, importers’ perception of foreign exporter’s ability to reward. In this study, importers’ perception of foreign exporter’s ability to reward was hypothesized to be affected by satisfaction with the social and economic aspects of the relationship, and with perceived similarity. It was also hypothesized that importers’ perception of foreign exporter’s ability to reward increases reciprocity magnitude and decreases reciprocity asymmetry. Finally, it was postulated that reciprocity magnitude increases perceived performance outcomes, while reciprocity asymmetry decreases it. The research model was tested with a sample of 200 purchasing managers of industrial products from companies located in the U.S. The results showed that all the hypotheses were supported. Theoretical and managerial implications of this study are likewise discussed.

연속파 Doppler 심초음파 검사에 의한 대동맥 및 폐동맥 혈류량의 측정

주인종(In Jong Joo),김은식(Eun Sik Kim),이문철(Moon Chul Lee),김수경(Soo Kyung Kim),유병희(Byung Hee Yu),이홍순(Hong Soon Lee),이학중(Hak Choong Lee) 대한내과학회 1987 대한내과학회지 Vol.32 No.5

N/A To measure aortic and pulmonary flow, Continuous-Wave Doppler echocardiography was performed in 30 patients who admit to N.M.C, from Mar., 1986 to Sept., 1986. We compared the measurements of aortic and pulmonary flow by CW Doppler echocardiography with those by Fick method of cardiac catheterization to evaluate the accuracy of the measurements by CW Doppler echocardiography. The results were as follows; l) Aortic and pulmonary flow measured by two methods showed a significant correlation of 0.44 (P<0.025) in aortic flow and 0.72 (P<0.005) in pulmonary flow, respectively. 2) Aortic and pulmonary flow measured by CW Doppler echocardiography showed a more significant correlation in the patients with regular heart beat and CI of above 2,2 L/min/m² than in the patients with irregular heart beat and CI of below 2.2 L/min/m² 3) Therefore, a simple & nonivasive Doppler echocardiography was considered as a effective method for measurement of aortic and pulmonary flow.

연속적 한외여과와 혈액투석중 혈장 ANP 의 변화

장규만(Kyu Man Jang),하기수(Ki Soo Ha),문현창(Hyun Chang Moon),이문철(Moon Chul Lee),유병희(Byung Hee Yu),이홍순(Hong Soon Lee),문성수(Seong Soo Moon) 대한내과학회 1988 대한내과학회지 Vol.35 No.6

N/A Plasma atrial natriuretic peptide (ANP) has been known to be a kind of peptide hormone and to have actions of natriuresis, diuresis and vasodilatation. It has been suggested that plasma ANP may be secreted from the cardiac atrium in response to extracellular fluid volume expansion to maintain blood volume homeostasis, and its level may be raised in volume overloaded conditions, such as congestive heart failure, chronic renal failure and the syndrome of inappropriate antidiuretic hormone secretion. We investigated the effect of fluid removal by sequential ultrafiltration and hemodialysis on circulating plasma ANP in 14 volume overloaded patients with chronic renal failure. The results were as follows: 1) The mean dry weight of patients was 58.3±0.4 kg and the predialytic weight gain was 3.4±0.9 kg. The amount of fluid removal by sequential ultrafilt-ration was 1176±31.7 ml (about 2% of predialytic body weight) and postdialytic weight loss was 3.1±0.3 kg. Systolic and diastolic blood pressures were not significantly changed during sequential ultrafiltration and hemodialysis, Plasma osmolality, BUN and K+ levels were not significantly changed after ultrafiltration but were significantly decreased after hemodialysis. 2) Plasma ANP levels were raised in all patients (mean±SE 205.3±30.7pg/ml, n=l4) compared with healthy contro1s (40.9±4.4 pg/ml, n=16), but showed considerable interpatient variability. 3) Plasma ANP levels fell with fluid removal during ultrafiltration (123.4±4.2 pg/ml, p<0.025) and again as fluid was removed during hemodialysis (88.7±3.1 pg/ml, p<0.05). 4) There was no significant correlation between predialytic weight gain and plasma ANP levels, and between postdialytic weight loss and plasma ANP levels. In conclusion, this study showed that the plasma ANP level was raised as body fluid volume increased in patients with chronic renal failure and fell with fluid removal after dialysis. These findings suggest that changes in body fluid volume play an important role in the regulation of ANP secretion.

협심증 환자의 관동맥 조영상 근위부 관동맥 직경의 크기에 대한 연구

성상규(Sang Kyu Sung),장대환(Dae Whan Jang),김수경(Soo Kyung Kim),김종연(Jong Yeun Kim),양인석(In Seok Yang),유병희(Byung Hee Yu),이홍순(Hong Soon Lee),이학중(Hak Choong Lee) 대한내과학회 1989 대한내과학회지 Vol.36 No.3

N/A The coronary angiograms in 49 anginal patients were reviewed by measuring the coronary diameter to catheter width ratio in the proximal portion of 3 major coronary branches. 1) The subjects were composed of stable angina (20 patients), unstable angina (7 patients) and post-infarct angina (22 patients). 2) The most frequently involved vessel was the left anterior descending branch. 3) In the left anterior descending branch, coronary diameter to catheter width ratios were significantly reduced in stable angina with both <50% and 50%> obstruction and in post-infarct angina with more than 50% obstruction. Thus we thought that the reduced coronary diameter may be a contributory cause of angina.

증례 : Mixed connective tissue disease 2 예

이학중 ( Hak Choong Lee ),김화숙 ( Hwa Sook Kim ),이우형 ( Woo Hyung Lee ),이홍순 ( Hong Soon Lee ),이충규 ( Choong Kyu Lee ),유병희 ( Byung Hee Yu ) 대한내과학회 1983 대한내과학회지 Vol.26 No.11

혈액투석 환자의 동정맥루 이환

김인수(In Soo Kim),문석준(Seok Jun Moon),박현진(Hyun Jin Park),김동조(Dong Jo Kim),손행종(Haeng Jong Sohn),이무용(Moo Yong Rhee),박건욱(Keon Uk Park),최락경(Rak Kyeong Choi),유병희(Byung Hee Yu),문성수(Seong Soo Moon) 대한내과학회 1996 대한내과학회지 Vol.50 No.4

N/A Objectives: The construction and maintenance of vascular access are essential in patients with end stage renal disease(ESRD) on chronic hemodialysis. So, the complications of vascular access are significant causes of morbidity and inadequacy of hemodialysis. The current study was undertaken to provide an estimate of the magnitude of the problem of access-related morbidity and to explore the relationship of sex, age, and underlying cause of renal failure as risk factors for vascular complications. Methods: We observed vascular access-related hospitalization, access complications, and sex, age, and underlying cause of renal failure as risk factors on 167 ESRD patients who have received maintenance hemodialysis between January 1983 and June 1993 at the National Medical Center. A univariate survival analysis of time to vascular access-related hospitalization was carried out for each of the risk factors under study, that is, sex, age, and underlying cause of renal failure. Kaplan-Meier survival curves were generated for categorized levels of each variable and compared using the log rank test. Results: 1) The vascular access-related hospitalization occupied 16.5% of all hospital stays and the mean length of hospital stays was 12.4 days. 2) The thrombosis occurred in 82.8% of all access complications. The formation of new vascular access was performed in 69.0% of vascular access-related morbidity. 3) The cumulative 1 year, 2 year, 3 year, 5 year, and 10 year survival rates of vascular access were 89.2%, 83.8%, 75.5%, 67.2%, and 53.2%, respectively, The cumulative survival rate of vascular access in women was lower significantly than in men. It was also lower significantly in diabetics than in other diseases including glomerulonephritis. But, age was not statistically correlated with vascular access survival. Conclusion: The complications of vascular access cause increase in hospitalization among ESRD patients, and women and diabetics apperar to be at particularly high risk. Additional studies on the risk factors for vascular access morbidity are needed to manage vascular access more carefully in ESRD patients on chronic hemodialysis.

서비스 기업에 대해 고객이 인지하는 공정성 모델에 관한 연구

유병희,이동진 연세대학교 경영연구소 2006 연세경영연구 Vol.43 No.2

본 연구는 서비스 제공 상황에서 고객이 지각하는 공정성에 의해 형성되는 신뢰에 관한 것이다. 이 연구에서는 공정성의 세 가지 하위 차원인 분배적 공정성,절차적 공정성, 그리고 상호작용 공정성 각각에 대한 선행 변수 및 이들 세차원의 공정성이 소비자의 전반적인 신뢰 형성에 미치는 영향을 측정하였다. 소비자 조사 결과,세 가지 지각된 공정성은 관계기간에 상관없이 신뢰와 구전 의도에 유의한 영향을 미치는 것으로 드러났다. 또한 세 가지 공정성 가운데 상호작용 공정성이 가장 큰 영향을 미치는 것으로 밝혀졌다. This study develops and tests a model of customer's perceived justice in the service setting. Specifically, this study tested the effects of a set of antecedents on customer's perceived justice, namely distributive justice, procedural justice, and interactional justice. This study also examined the impact of perceived justice on customer's overall trust towards the firm, moderated by relationship duration. The results of customer survey indicated that, regardless of relationship duration, the three types of perceived justice had a significant influence on overall customer trust and Nord-of-mouth. It also has been found that, among the three types of perceived justice, interactional justice had the strongest impact on overall customer trust. Managerial implications are discussed.

Nifedipine과 Captopril이 흰쥐의 Cisplatin 신독성에 미치는 영향

유병희,하종식,김구자,경난호 이화여자대학교 생명과학연구소 1991 생명과학연구논문집 Vol.2 No.-

To investigate the effect of nifedipine, a calcium channel blocker and captopril, an angiotensin I converting enzyme inhibitor on cisplastin induced nephrotoxicity, we administered nifedipine, captopril and cisplatin to rats(Sprague-Daweley) and followed the changes in renal function, Na+, K+-ATPase activity, electrolyte concentration, renal tissue oxygen consumption and morphological changes. Results obtained were as followings. 1) As compared with control group, a marked weight loss was observed in cisplatin administered group, and the change was not prevented by the pretreatment with nifedipine or captopril. 2) Blood pressure was lowered in cisplatin, nifedipine and captopril groups at 5th day after administration of cisplatin. Blood pressure was recovered by preteatment with nifedipine or captopril at 8th day. 3) Urine flow increased drastically and urine osmolality follwing cisplatin treatment and these changes were not alliviated by the pretreatment with nifedipine or captopril. 4) In cisplatin treated animals, the urinary excretion of Na+and K+ were significantly reduced but the fractional excretions were increased. In this case, however, the nifedifine and captopril pretreatments attenuated the changes in fractional excretion. 5) In cisplatin treated animals, both the urinary excretion and fractional excretion of Mg^2+were increased drastically. These changes were not improved by nifedipine pretreatment, but were significantly attenuated by captopril. 6) In cisplatin treated animals, the glomerular filtration rate was reduced markedly and this was not corrected by pretreatment with nifedipine or captopril. 7) As compared with control group, Na+, K+-ATPase activities of the outer medullary tissues were decreased remarkably following cisplatin treatment. The decreaments were not changed by preteatment with nifedipine or captopril. 8) As compared with control group, the Na+ content of the outer medullary tissue was increased and K+ content was decreased in cisplatin treated animals. These changes were not affected by pretreatment with nifedipine or captopril. 9) Oxygen consumptions of renal tissues was decreased following cisplatin treatment, and this change was not reverted by pretreatment with nifedipine or captopril. 10) There were no changes in plasma ADH level among 4 groups, however, plasma renin activity was increased significantly following cisplatin treatment, and the increment was reduced slightly by pretreatment with nifedipine or captopril. 11) In electron micreoscopic study, a focal coagulative necrosis and mitochondrial swelling of proximal tubular cells were observed in cisplatin treated animals. These findings were persisted in animals pretreated with nifedipine or captopril. These results indicate 1) The cisplatin induced nephrotoxicity is due to an impairment of tubular reabsorption systems, particularly active Na+ transport mechanism in the ascending Henle's loop, an impairment of countercurrent multiplication system and necrosis of proximal tubule, and 2) these alteration can not be prevented by pretreatment with nifedipine or captopril.

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.