1.The Effect of Job Stress and Social Support on the Organizational Effectiveness of Hospital Employees.
Jong Wook KO ; Young Joon SEO ; Ha Young PARK
Korean Journal of Preventive Medicine 1996;29(2):295-308
The purpose of this study is to investigate the effect of job stress and social support on the organizational effectiveness of hospital employees and to examine the role of social support in the experience of job stress among the employees. Previous studies have yielded mixed results regarding the role of social support. Some studies provide supporting evidence for the buffering effect of social support, while others do not. Still others report findings about reverse buffering effects. These inconsistent findings are, in part, accounted for by methodological problems such as poor measurement, small sample size, and the existence of high multicollinearity. To examine more rigorously the role of social support in relation to the negative effects of job stress, this study was carefully designed to overcome methodolgical shortcomings found in the past research. In addition, unlike the previous studies, which were concerned mostly with health-related variables as consequences of job stress, in this study, three work-related variables (job satisfaction, organizational commitment, and intent to stay) which had close relationships with organizational effectiveness were examined as output variables. The sample used in this study consisted of 353 employees from a university hospital in the suburbs of seoul. Data were collected with self-administered questionnaires and analyzed using canonical analysis and hierarchical regression analysis. The results of this study indicate that; (l) job stress has negative main effects on job satisfaction, organizational commitment, and intent to stay; (2) social support has positive main effects on the same three output variables, (3) social support does not moderate the harmful effects of job stress on the three outcome variables, and (4) the three-way interaction effects of (social support * job stress * gender) and of (social support * job stress * education) are not supported The implications of these findings for the management of human resources are discussed.
Humans
;
Job Satisfaction
;
Surveys and Questionnaires
;
Sample Size
;
Seoul
2.The Relationship of Prostatic Urethral Obstruction of Cytourethroscopy with Voiding Symptoms and Prostate Volume in Lower Urinary Tract Symptoms Patients.
Hyung Joo KIM ; Byoung Wook SEO ; Young Ho PARK
Korean Journal of Urology 2000;41(1):47-51
No abstract available.
Humans
;
Lower Urinary Tract Symptoms*
;
Prostate*
;
Urethral Obstruction*
3.Selectivity Index of Proteinuria in Childhood Minimal Change Nephrotic Syndrome.
Cheol Ho LEE ; Young Seo PARK ; Kwang Wook KO
Journal of the Korean Pediatric Society 1989;32(10):1384-1390
No abstract available.
Nephrosis, Lipoid*
;
Proteinuria*
4.A Clinical Study of Reye`s Syndrome.
Young Seo PARK ; Hwan Jong LEE ; Sang Pok SUK ; Jeong Kee SEO ; Kwang Wook KO
Journal of the Korean Pediatric Society 1984;27(11):1088-1096
No abstract available.
5.Image Standardization and Determination of Gray Level Threshold in the Assessment of the Myocardial Fibrosis by the Computerized Image Analysis.
Nam Young LEE ; Young Sik PARK ; Jin Haeng CHUNG ; Jeong Wook SEO
Korean Journal of Pathology 1998;32(7):494-503
The computerized image analysis is a useful tool for the quantitative assessment of histopathologic findings. In contrast to the usual microscopic examination by pathologists, the computerization should be accompanied with the standardization process of the image. We developed an algorithm to standardize images and to determine the optimal gray level threshold, using a myocardial fibrosis model. Sirius red staining was more convenient for the image analysis than Masson's trichrome staining because of a better contrast with the surrounding structures. To get an optimal measurement, light intensity was standardized at each of the fibrosis, myocardium and background. In this study, the most promising method to determine the degree of fibrosis was that of revising the background without tissue to a gray level of 200, obtaining a green component of the color image, revising the myocardial fiber to 163, and defining a partial ratio as fibrosis index when the gray level threshold was 120. These threshold levels and parameters were determined after drawing the binarization index curves according to the change of the gray level threshold and by the morphological examination of the actual binarization figures overlaid to the original color image. Through these processes we could get a consistent result on the myocardial fibrosis and we expect a similar principle applies when we analyze color images in the histopathologic quantitation by computerized image analysis.
Fibrosis*
;
Myocardium
6.Value of color ultrasonography in anetnatal prediction of nuchal cord.
Young Won PARK ; Young Wook YOON ; Jae Sung CHO ; Kyeong SEO ; Chan Ho SONG
Korean Journal of Obstetrics and Gynecology 1993;36(7):2517-2522
No abstract available.
Nuchal Cord*
;
Ultrasonography*
7.Late aortic dilatation and regurgitation after Ross operation.
Kim, Moon-Young ; Na, Chan-Young ; Kim, Yang-Min ; Seo, Jeong-Wook
The Malaysian Journal of Pathology 2010;32(2):129-35
The Ross operation, a procedure of replacement of the diseased aortic valve with an autologous pulmonary valve, has many advantages such as no need for anticoagulation therapy and similar valve function and growth potential as native valves. However secondary aortic disease has emerged as a significant complication and indication for reoperation. We report a 48-year-old woman who had Ross operation in 1997 for a damaged bicuspid aortic valve and severe aortic regurgitation due to subacute bacterial endocarditis complicated by aortic root abscess. In 2009, 12 years later, progressive severe aortic regurgitation with incomplete coaptation and mild dilatation of the aortic root was shown on echocardiography and contrasted CT, while the pulmonary homograft retained normal function. She subsequently underwent aortic valve replacement. Histopathological examination of the explanted neo-aortic valve and neo-arterial wall revealed pannus formation at the nodulus Arantii area of the three valve cusps, ventricularis, and arterialis. The amount of elastic fibres in the neo-aorta media was less than usual for an aorta of this patient's age but was similar to a pulmonary artery. The pathological findings were not different from other studies of specimens removed between 7 to 12 years after Ross operation. However, the pathophysiology and long-term implications of these findings remain debatable. Considering the anatomical and physiological changes induced by the procedure, separate mechanisms for aortic dilatation and regurgitation are worthy of consideration.
Aorta/*pathology
;
Aortic Valve/*surgery
;
Aortic Valve Insufficiency/*etiology
;
Cardiovascular Surgical Procedures/*adverse effects
;
Dilatation, Pathologic
;
Heart Valve Diseases/*surgery
;
Prostheses and Implants
;
Pulmonary Valve/*transplantation
8.A Case of Metastatic Adenocarcinoma on the Scalp from the Rectum.
Hun Young JANG ; Yun Seo KANG ; Hye Kyung AN ; Chun Wook PARK ; Cheol Heon LEE
Korean Journal of Dermatology 1995;33(1):179-182
Cutaneous metastatic tumors on the scalp from the rectum are very A 66-year-old male presented a nodule and papule an his scalp three months after surgical removal of a rectal adenocarcinorna. Biopsy specien from the scalp showed adenocarcinoma which is similar to the primary rectal carcinoma.
Adenocarcinoma*
;
Aged
;
Biopsy
;
Humans
;
Male
;
Rectum*
;
Scalp*
9.A Case of Heterotopic Pregnancy in Natural Cycle.
Sung Wook SONG ; Young Whan JUNG ; Zong Soo MOON ; Soo Hyung SEO ; Yang Suh PARK
Korean Journal of Perinatology 2001;12(2):188-192
No abstract available.
Pregnancy, Heterotopic*