1.Clinical and histopathological studies on ovarian tumors.
Yeun Jin KIM ; Min Jung LEE ; Un Ik JANG ; Jung Su GOO ; Sung Hee JUNG
Korean Journal of Obstetrics and Gynecology 1993;36(7):2220-2230
No abstract available.
2.A study on osteoblast-like cell responses to surface-modified titanium.
Min ah HONG ; Yung Soo KIM ; Chang Whe KIM ; Kyung Su JANG ; Jae Il LEE
The Journal of Korean Academy of Prosthodontics 2003;41(3):300-318
STATEMENT OF PROBLEM: The success of implants depends on intimate and direct contact of implant material on bone tissue and on functional relationship with soft tissue contact. Creation and maintenance of osseointegration depend on the understanding of the tissue's healing, repairing, and remodeling capacity and these capacities rely on cellular behavior. Altering the surface properties can modify cellular responses such as cell adhesion, cell motility, bone deposition. Therefore, various implant surface treatment methods are being developed for the improved bone cell responses. PURPOSE: The purpose of this study was to evaluate the responses of osteoblast-like cells to surface- modified titanium. MATERIALS AND METHODS: The experiment was composed of four groups. Group 1 represented the electropolished surface. Group 2 surfaces were machined surface. Group 3 and Group 4 were anodized surfaces. Group 3 had low roughness and Group 4 had high roughness. Physicochemical properties and microstructures of the d iscs were examined and the responses of osteoblast-like cells to the discs were investigated. The microtopography was observed by SEM. The roughness was measured by three-dimension roughness measuring system. The microstructure was analyzed by XRD, AES. To evaluate cell responses to modified titanium surfaces, osteoblasts isolated from calvaria of neonatal rat were cultured. Cell count, morphology, total protein measurement and alkaline phosphatase activities of the cultures were examined. RESULTS AND CONCLUSION: The results were as follows 1. The four groups showed specific microtopography respectively. Anodized group showed grain structure with micropores. 2. Surface roughness values were, from the lowest to the highest, electropolished group, machined group, low roughness anodized group, and high roughness anodized group. 3. Highly roughened anodized group was found to have increased surface oxide thickness and surface crystallinity. 4. The morphology of cells, flattened or spherical, were different from ach other. In the electropolished group and machined group, the cells were almost flattened. In two anodized groups, some cells were spherical and other cells were flattened. And the 14 day culture cells of all of the groups were nearly flattened due to confluency. 5. The number of attached cells was highest in low roughness anodized group. And the machined group had significantly lower cell count than any other groups(P<.05). 6. Total protein contents showed no difference among groups. 7. The level of alkaline phosphatase activities was higher in the anodized groups than electropolished and machined groups(P<.05).
Alkaline Phosphatase
;
Animals
;
Bone and Bones
;
Cell Adhesion
;
Cell Count
;
Cell Movement
;
Edible Grain
;
Crystallins
;
Osseointegration
;
Osteoblasts
;
Rats
;
Skull
;
Surface Properties
;
Titanium*
3.The Influence of Clinical Decision-Making Ability and Role Conflict on Nursing Work Performance Ability in Emergency Room Nurses
Su Min SO ; Jeong Hyun CHO ; Seung Gyeong JANG
Journal of Korean Clinical Nursing Research 2025;31(1):59-68
Purpose:
This study aimed to examine the levels of clinical decision-making ability, role conflict, and nursing work performance ability and to identify factors influencing nursing work performance ability among emergency room nurses.
Methods:
This study emploved a descriptive correlational research design. A total of 137 emergency room nurses, were participated. Data were collected at three tertiary hospitals located in city B, from June 1 to August 25, 2024. The collected data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Scheffé test, Pearson’s correlation, and multiple regression analysis using IBM SPSS 29.0 program.
Results:
The average score of clinical decision-making ability was 3.31, while role conflict and nursing work performance ability both had an average score of 3.77. Factors influencing nursing work performance ability included clinical decision-making ability, role conflict, and annual salary, which explained 20.0% of the variance in nursing work performance ability.
Conclusion
Clinical decision-making ability and role conflict significantly impact nursing work performance among emergency room nurses. Strategies to enhance clinical decision-making skills and mitigate role conflict should be developed at the organizational level. Additionally, further research is needed to on appropriate compensation systems and institutional measures to enhance nursing work performance.
4.The Influence of Clinical Decision-Making Ability and Role Conflict on Nursing Work Performance Ability in Emergency Room Nurses
Su Min SO ; Jeong Hyun CHO ; Seung Gyeong JANG
Journal of Korean Clinical Nursing Research 2025;31(1):59-68
Purpose:
This study aimed to examine the levels of clinical decision-making ability, role conflict, and nursing work performance ability and to identify factors influencing nursing work performance ability among emergency room nurses.
Methods:
This study emploved a descriptive correlational research design. A total of 137 emergency room nurses, were participated. Data were collected at three tertiary hospitals located in city B, from June 1 to August 25, 2024. The collected data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Scheffé test, Pearson’s correlation, and multiple regression analysis using IBM SPSS 29.0 program.
Results:
The average score of clinical decision-making ability was 3.31, while role conflict and nursing work performance ability both had an average score of 3.77. Factors influencing nursing work performance ability included clinical decision-making ability, role conflict, and annual salary, which explained 20.0% of the variance in nursing work performance ability.
Conclusion
Clinical decision-making ability and role conflict significantly impact nursing work performance among emergency room nurses. Strategies to enhance clinical decision-making skills and mitigate role conflict should be developed at the organizational level. Additionally, further research is needed to on appropriate compensation systems and institutional measures to enhance nursing work performance.
5.The Influence of Clinical Decision-Making Ability and Role Conflict on Nursing Work Performance Ability in Emergency Room Nurses
Su Min SO ; Jeong Hyun CHO ; Seung Gyeong JANG
Journal of Korean Clinical Nursing Research 2025;31(1):59-68
Purpose:
This study aimed to examine the levels of clinical decision-making ability, role conflict, and nursing work performance ability and to identify factors influencing nursing work performance ability among emergency room nurses.
Methods:
This study emploved a descriptive correlational research design. A total of 137 emergency room nurses, were participated. Data were collected at three tertiary hospitals located in city B, from June 1 to August 25, 2024. The collected data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Scheffé test, Pearson’s correlation, and multiple regression analysis using IBM SPSS 29.0 program.
Results:
The average score of clinical decision-making ability was 3.31, while role conflict and nursing work performance ability both had an average score of 3.77. Factors influencing nursing work performance ability included clinical decision-making ability, role conflict, and annual salary, which explained 20.0% of the variance in nursing work performance ability.
Conclusion
Clinical decision-making ability and role conflict significantly impact nursing work performance among emergency room nurses. Strategies to enhance clinical decision-making skills and mitigate role conflict should be developed at the organizational level. Additionally, further research is needed to on appropriate compensation systems and institutional measures to enhance nursing work performance.
6.The Influence of Clinical Decision-Making Ability and Role Conflict on Nursing Work Performance Ability in Emergency Room Nurses
Su Min SO ; Jeong Hyun CHO ; Seung Gyeong JANG
Journal of Korean Clinical Nursing Research 2025;31(1):59-68
Purpose:
This study aimed to examine the levels of clinical decision-making ability, role conflict, and nursing work performance ability and to identify factors influencing nursing work performance ability among emergency room nurses.
Methods:
This study emploved a descriptive correlational research design. A total of 137 emergency room nurses, were participated. Data were collected at three tertiary hospitals located in city B, from June 1 to August 25, 2024. The collected data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Scheffé test, Pearson’s correlation, and multiple regression analysis using IBM SPSS 29.0 program.
Results:
The average score of clinical decision-making ability was 3.31, while role conflict and nursing work performance ability both had an average score of 3.77. Factors influencing nursing work performance ability included clinical decision-making ability, role conflict, and annual salary, which explained 20.0% of the variance in nursing work performance ability.
Conclusion
Clinical decision-making ability and role conflict significantly impact nursing work performance among emergency room nurses. Strategies to enhance clinical decision-making skills and mitigate role conflict should be developed at the organizational level. Additionally, further research is needed to on appropriate compensation systems and institutional measures to enhance nursing work performance.
7.A study on the hemolytic properties of Prevotella nigrescens.
Ju Seok KWAK ; Hoon Sang JANG ; Seok Woo JANG ; Su Jong LEE ; Yong Wook YU ; Kyung San MIN
Journal of Korean Academy of Conservative Dentistry 2005;30(4):335-343
Hemolytic property is a specific feature of bacteria to obtain iron which is essential for its survival in host tissues. Therefore, it is thought to be one of several factors of virulence. The purpose of this study was to investigate the hemolytic properties of Prevotella nigrescens isolated from the teeth diagnosed as pulp necrosis and apical periodontitis under the presence of hemolysin inhibitors such as NaN3 and dithiothreitol, heat, various pH and cultural conditions. The results were as follows; 1. Clinically isolated P. nigrescens strains and standard P. nigrscens ATCC 33563 showed hemolytic activity. 2. P. nigrescens showed higher hemolytic activity against human erythrocytes than sheep or horse erythrocytes. 3. NaN3 and dithiothreitol (DTT) reduced the hemolytic activity of P. nigrescens in a dose dependent manner (p < 0.05). 4. Optimal pH for the maximum hemolytic activity of P. nigrescens was 4.0 and the hemolysin was stable under the 50degrees C, but the hemolytic activity was significantly decreased at 95degrees C. 5. P. nigrescens cultured in 10% CO2 condition showed higher hemolytic activity than the bacteria cultured in the anaerobic condition.
Bacteria
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Dental Pulp Necrosis
;
Dithiothreitol
;
Erythrocytes
;
Horses
;
Hot Temperature
;
Humans
;
Hydrogen-Ion Concentration
;
Iron
;
Periapical Periodontitis
;
Prevotella nigrescens*
;
Prevotella*
;
Sheep
;
Sodium Azide
;
Tooth
;
Virulence
8.Screening Test of Cleft Palate Speech in Cleft Palate Patients
Jae Suk RIM ; Jong Jin KWON ; Hyun Seok JANG ; Young Joon PARK ; Cheol Min CHOI ; Sang Ho JEON ; Su Jeong JANG
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2001;23(6):510-515
No abstract available.
Cleft Palate
;
Humans
;
Mass Screening
9.Surgical Results of Growth Hormone-Secreting Pituitary Adenoma.
Min Su KIM ; Hyun Dong JANG ; Oh Lyong KIM
Journal of Korean Neurosurgical Society 2009;45(5):271-274
OBJECTIVE: We retrospectively analyzed the surgical outcomes of 42 patients with growth hormone (GH)-secreting pituitary adenoma to evaluate the clinical manifestations and to determine which preoperative factors that significantly influence the remission. METHODS: Forty-two patients with GH-secreting pituitary adenoma underwent transsphenoidal surgery (TSS) between 1995 and 2007. The patient group included 23 women and 19 men, with a mean age of 40.2 (range 13-61) years, and a mean follow-up duration of 49.4 (range 3-178) months after the operation. For comparable radiological criteria, we classified parasellar growth into five grades according to the Knosp classification. We analyzed the surgical results of the patients according to the most recent stringent criteria for cure. RESULTS: The overall rate of endocrinological remission in the group of 42 patients after primary TSS was 64% (26 of 42). The remission rate was 67% (8 of 12) for microadenoma and 60% (18 of 30) for macroadenoma. The remission rate was 30% (3 of 10) for the group with cavernous sinus invasion and 72% (23 of 32) for the group with intact cavernous sinus. Cavernous sinus invasion in Knosp grade III and IV was significantly correlated with the remission rate. There was a significant relationship between preoperative mean GH concentration and early postoperative outcome, with most patients in remission having a lower preoperative GH concentration. CONCLUSION: TSS is thought to be an effective primary treatment for GH-secreting pituitary adenomas according to the most recent criteria of cure. Because the remission rate in cases with cavernous sinus invasion is very low, early detection of the tumor before it extends into the cavernous sinus and a long-term endocrinological and radiological follow-up are necessary in order to improve the remission rate of acromegaly.
Acromegaly
;
Cavernous Sinus
;
Female
;
Follow-Up Studies
;
Growth Hormone
;
Growth Hormone-Secreting Pituitary Adenoma
;
Humans
;
Male
;
Pituitary Neoplasms
;
Remission Induction
;
Retrospective Studies
10.A Case of Primary Laryngeal Aspergillosis Confused with Vocal Cyst.
Young In KIM ; Byoung Chul PARK ; Jang Su LEE ; Han Ki MIN
Korean Journal of Otolaryngology - Head and Neck Surgery 2010;53(11):726-728
With a surge in the population of immunocompromised patients, the incidence of laryngeal fungal infection has also been increased. Infection by aspergillus, which is a kind of mold, or a filamentous fungus, occurs rarely in larynx. Furthermore, most aspergillosis of the upper airway is an extension of the pulmonary or systemic aspergillosis in the immunocompromised host. So, the primary laryngeal aspergillosis that occurrs as an isolated laryngeal infection of aspergillus without other aerodigestive tract extension is very rarely encountered. We present a case of primary laryngeal aspergillosis misconceived as a vocal cord cyst in a 24-year-old female who had no past history of immune deficiency, voice abuse or steroid use.
Aspergillosis
;
Aspergillus
;
Female
;
Fungi
;
Humans
;
Immunocompromised Host
;
Incidence
;
Larynx
;
Vocal Cords
;
Voice
;
Young Adult