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 Brachioradialis Muscle Flap for Resurfacing of Sort Tissue Defect in the Hand and Forearm.
Jeong Joon PARK ; Young Wook JEON ; Jin Soo KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(3):325-329
The provision of adequate soft tissue cover for a complex hand and forearm wound-dirty, infected and exposed bone can be a challenging problem. Conventionally, a distant flap or free flap have been used, but these have been associated with several problems such as joint stiffness, risk of microsurgical procedures, negligible donor site morbidity, prolonged operation time and economic restriction. As well, fasciocutaneous flap has been the limitation of infection control. In these situations, the ipsilateral muscle flap provides the ideal cover with its rich blood supply and single operative field. Previously described by Lendrum(1980), by Lae et al.(1981), and later by McGeorge(1991), the brachioradilis muscle is the most superficial muscle on the radial side of the forearm. Its flap is based on the radial artery and venae comitantes. From August 1996 to October 1997, we performed branchioradialis muscle flap in seven patients. Despite the sacrifice of the major hand artery, brachioradialis muscle flap has many advantages including the reliability of flap survival, easy dissection, early mobilization and absence of functional and aesthetic problems at the donor site. It is a relatively simple and rapid method for resurfacing soft tissue defect in the hand and forearm. We obtained satisfactory and reliable results.
Arteries
;
Early Ambulation
;
Forearm*
;
Free Tissue Flaps
;
Hand*
;
Humans
;
Infection Control
;
Joints
;
Radial Artery
;
Tissue Donors
3.A case of reconstruction of tongue and oropharynx by RAMC flap.
Hoon Shik YANG ; Sung Joon PAIK ; Yong Wook PARK
Korean Journal of Otolaryngology - Head and Neck Surgery 1991;34(4):852-856
No abstract available.
Oropharynx*
;
Tongue*
4.Selective arterial thrombolysis with urokinase.
Jae Hyung PARK ; Kil Sun PARK ; Jin Wook CHUNG ; Joon Koo HAN ; Dae Young KIM ; Sang Joon KIM
Journal of the Korean Radiological Society 1991;27(4):441-446
No abstract available.
Urokinase-Type Plasminogen Activator*
5.Simultaneous Detection and Identification of Human Respiratory Syncytial Virus, Influenza Virus A ( H3N2 , H1N1 ) and B by One - tube Multiplex Reverse Transcription Polymerase Chain Reaction.
Yun Hyung PARK ; Young Dae WOO ; Sugn Kon KIM ; Hyung Joon BAE ; Sang Wook PARK
Journal of Bacteriology and Virology 2001;31(3):269-274
Respiratory syncytial virus (RSV) and Influenza virus are the most common pathogen for causing severe upper respiratory infection in all age groups. A multiplex reverse transcription polymerase chain reaction (RT-PCR) has been developed to detect and subtype influenza A (H3N2 and H1N1), B virus and RSV simultaneously in one tube reaction. Amplification with primers derived from conserved sequences within the nucleocapsid for RSV and hemagglutinin subunit for Influenza A (H3N2 and H1N1) and B viruses yielded a 384 bp, a 300 bp, a 236 bp and a 151 bp, respectively. Assay specificity was confirmed by pulse field gel electrophoresis and autosequencing method. Assay sensitivity was 3 PFU/ml of RSV, 22 PFU/ml, 45 PFU/ml of Influenza type A (H3N2 and H1N1) and 6.6 PFU/ml of Influenza B virus by plaque assay. A rapid and sensitive detection method of a one-tube with multiplex RT-PCR capable of identifying more than one viral template as well as synchronizing reverse transcription and PCR had the potential to produce considerable savings of time and cost effectiveness in the diagnostic laboratory.
Conserved Sequence
;
Cost-Benefit Analysis
;
Electrophoresis
;
Hemagglutinins
;
Herpesvirus 1, Cercopithecine
;
Humans*
;
Income
;
Influenza B virus
;
Influenza, Human*
;
Nucleocapsid
;
Orthomyxoviridae*
;
Polymerase Chain Reaction*
;
Respiratory Syncytial Virus, Human*
;
Respiratory Syncytial Viruses
;
Reverse Transcription*
;
Sensitivity and Specificity
6.Transscleral Diode Laser Photocoagulation for Retinopathy of Prematurity: Five Years' Experience.
Joon Woo PARK ; Hee Joon CHO ; Young Wook CHO
Journal of the Korean Ophthalmological Society 2006;47(12):1960-1965
PURPOSES: We analysed the five-year outcomes and associated complications of transscleral diode laser photocoagulation (TSDLP), used to treat acute proliferative retinopathy of prematurity (ROP), to evaluate the efficacy and safety of this therapy. METHODS: We performed a retrospective analysis of the records of 163 eyes of 82 infants with acute ROP, who were treated with TSDLP by a single surgeon. Follow-up periods ranged from 15 to 278 weeks. RESULTS: The outcome was favorable in 158 eyes (96.9%) and unfavorable in 5 eyes (3.1%) of the 163 eyes that were treated. Vitreous hemorrhage was found to be an indicator of poor prognosis. Of the complications noted, symblepharon was observed in three eyes, hyphema was observed in four eyes, and a complicated cataract was observed in one eye. CONCLUSIONS: The results suggest that TSDLP is a safe and effective in the treatment of ROP. Vitreous hemorrhage should be regarded as a sign of poor prognosis.
Cataract
;
Follow-Up Studies
;
Humans
;
Hyphema
;
Infant
;
Lasers, Semiconductor*
;
Light Coagulation*
;
Prognosis
;
Retinopathy of Prematurity*
;
Retrospective Studies
;
Vitreous Hemorrhage
7.Surgical experience of Takayasu'arteritis.
Wook Sung KIM ; Hyuck AHN ; Sang Joon KIM ; Yee Tae PARK
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(12):926-933
No abstract available.
8.Intraocular Pressure Change Following Nd: YAG Laser Posterior Capsulotomy in After Cataract.
Han Joon PARK ; Jong Wook KIM ; Yong Sik KIM
Journal of the Korean Ophthalmological Society 2000;41(11):2338-2342
Intraocular pressures (IOP)were measured following Neodymium (Nd): YAG laser posterior capsulotomy in 51 pseudophakic eyes which had been treated with phacoemulsification and intraocular lens in the bag.Group 1 was no medical treated, group 2 was treated with 0.5%apraclonidine preoperatively, group 3 was treated with fluorometholone postoperatively, and group 4 was treated with 0.5%apraclonidine preoperatively and with fluorometholone postoperatively.IOP was measured preoperatively and 1, 3, 24 hours and 1 week postoperatively.Four eyes (7.8%)had greater than 5 mmHg elevation of IOP (1 eye in group 1, 3 eyes in group 3)and all of them decreased IOP to normal level within 3 hours.In summary, there was no or little IOP elevation without any medical treatment in eyes which had been treated with phacoemulsification and intraocular lens in the bag and had intact posterior lens capsule.
Cataract*
;
Fluorometholone
;
Intraocular Pressure*
;
Lasers, Solid-State*
;
Lenses, Intraocular
;
Neodymium
;
Phacoemulsification
;
Posterior Capsulotomy*
9.Hypomelia-Hypotrichosis-Facial Hemangioma Syndrome.
Wook LEW ; Dong Kun KIM ; Nam Joon CHO ; You Chan KIM ; Hui Wan PARK
Annals of Dermatology 1995;7(4):358-360
We report a mild variant of hypomelia-hypotrichosis-facial hemangioma syndrome in a 3 month-old female. The patient showed major features of the previously reported cases including flexion deformities of both upper extremities, sparse light colored hair, mid-facial hemangioma and a characteristic facial appearance. Roentgenogram showed radio-humeral synostosis at both elbow joints by which shortening of upper limbs could be anticipated. However, intra- and extrauterine growth retardation were not remarkable and the lower limbs were not affected.
Congenital Abnormalities
;
Elbow Joint
;
Female
;
Hair
;
Hemangioma*
;
Humans
;
Hypotrichosis
;
Lower Extremity
;
Synostosis
;
Upper Extremity
10.Radiation Exposure of Operator during Various Interventional Procedures.
Jin Wook CHUNG ; Jae Hyung PARK ; Joon Koo HAN ; In Kyu YU ; Wee Saing KANG
Journal of the Korean Radiological Society 1994;30(2):265-270
PURPOSE: To investigate the levels of radiation exposure of an operator which may be influenced by the wearing an apron, type of procedure, duration of fluoroscopy and operator's skill during various interventional procedures MATERIALS AND METHODS: Radiation doses were measured both inside and outside the apron(0.5mm lead equivalent) of the operator by a film badge monitoring method and the duration of fluoroscopy was measured in 96 procedures prospectively. The procedures were 30 transcatheter arterial embolizations (TAE), 25 percutaneous transhepatic biliary drainages (PTBD), 16 stone removals (SR), 15 percutaneous needle aspirations (PCNA) and 10 percutaneous nephrostomies(PCN). To assess the difference of exposure by the operator's skill, the procedures of TAE and PTBD were done separately by groups of staffs and residents. RESULTS: Average protective effect of the apron was 72.8%. Average radiation exposure(unit:micro Sv/procedure) was 23.3 in PTBD by residents, 10.0 in PTBD by staffs, 10.0 in SR, 8.7 in TAE by residents, 7.3 in TAE by staffs, 9.0 in PCN and 6.0 in PCNA. Average radiation exposure of residents were 1.9 times greater than those of staffs. CONCLUSION: Radiation exposure was not proportionally related to the duration of fiuoroscopy, but influenced by wearing an apron, various types o[procedure and operator's skills.
Aspirations (Psychology)
;
Film Dosimetry
;
Fluoroscopy
;
Needles
;
Pregnenolone Carbonitrile
;
Proliferating Cell Nuclear Antigen
;
Prospective Studies