• International Journal of Contents
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• v.11 no.2
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• pp.20-30
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• 2015

We propose a new method that specifies objective image quality factors by evaluating an image quality measurement model using random images. In other words, No-Reference variables are used to evaluate the quality of an original image without using any reference for comparison. 1000 portrait images were collected from a web gallery with votes constituting over 30 recommendation values. The bottom-up data collecting process was used to calculate the following image quality factors: total range, average, standard deviation, normalized distribution, z-score, preference percentage. A final grade is awarded out of 100 points, and this method ranks and grades the final estimated image quality preference in terms of total image quality factors. The results of the proposed image quality evaluation model consist of the specific dynamic range, skin tone R, G, B, L, A, B, and RSC contrast. We can present the total for the expected preference points as the average of the objective image qualities. Our proposed image quality evaluation model can measure the preferences for an actual image using a statistical analysis. The results indicate that this is a practical image quality measurement model that can extract a subject's preferred image quality.

• Journal of Korean Academy of Nursing Administration
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• v.15 no.2
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• pp.203-215
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• 2009

Purpose: In order to improve resuscitation rate of CPR through providing qualitative nursing while performing CPR in hospital ward and to enhance quality of emergency nursing in the ward, the author embarked on the research as a way of developing ventricular fibrillation protocol about CPR. Method: Collected data were analyzed by using the SPSS/PC14.0 program while the routes of final protocol developed in this research are as follows. Result: Based on analysis results of literature study and CPR electronic hospital records, a total of 22 items and 53 specific contents were confirmed through the gathering of opinions from panels, and the allotment of roles and tasks with a standard of 2 nurses was designated. As the result of specialists' verification on validity, the final protocol composed of a total of 23 items and 45 specific contents was confirmed. At the result of the pertinency evaluation of confirmed protocol, it was evaluated as relatively pertinent with its average score 2.89-3.32. Conclusion: The protocol developed in this research is seen as to contribute to nurses participating in CPR to avoid the overlapping of tasks and to develop CPR through effective teamwork of medical teams by presenting clear roles and tasks.

• Annals of Pediatric Endocrinology and Metabolism
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• v.23 no.4
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• pp.176-181
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• 2018

Noonan syndrome (NS) is an autosomal dominant disorder that involves multiple organ systems, with short stature as the most common presentation (>70%). Possible mechanisms of short stature in NS include growth hormone (GH) deficiency, neurosecretory dysfunction, and GH resistance. Accordingly, GH therapy has been carried out for NS patients over the last three decades, and multiple studies have reported acceleration of growth velocity (GV) and increase of height standard deviation score (SDS) in both prepubertal and pubertal NS patients upon GH therapy. One year of GH therapy resulted in almost doubling of GV compared with baseline; afterwards, the increase in GV gradually decreased in the following years, showing that the effect of GH therapy wanes over time. After four years of GH therapy, ~70% of NS patients reached normal height considering their age and sex. Early initiation, long duration of GH therapy, and higher height SDS at the onset of puberty were associated with improved final height, whereas gender, dosage of GH, and the clinical severity did not show significant association with final height. Studies have reported no significant adverse events of GH therapy regarding progression of hypertrophic cardiomyopathy, alteration of metabolism, and tumor development. Therefore, GH therapy is effective for improving height and GV of NS patients; nevertheless, concerns on possible malignancy remains, which necessitates continuous monitoring of NS patients receiving GH therapy.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.28 no.4
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• pp.69-81
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• 2020

Since airline safety depends significantly on the role of pilot, the importance of airlines' training qualified pilots and investing in the training program grows. This study aims to analyze the determinants of the commercial airline pilot competencies during the transition course. To this purpose, one-year training evaluation results of 215 new airline pilots in the JET transition course of Company K in 2019 are studied with correlation coefficient analysis, factor analysis, ANOVA, and regression analysis. Undergraduate major and Uljin-trained pilots show higher final-stage scores in PROC, AUTO, and CRM. Due to Uljin-trained pilots' higher first-stage scores, their score increase during the course is limited. Uljin-trained pilots' MANUAL scores in the final stage are lower than those of undergraduate major and overseas-trained pilots. Influence of trained location is found greater than English competency, undergraduate GPA, and ground school scores on commercial airline pilot competency evaluation scores during the program. The results will be useful in establishing scenario-based training focusing on different background to apply competency-based training and assessment.

• Journal of the Korean Arthroscopy Society
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• v.17 no.1
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• pp.24-30
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• 2013

Purpose: To evaluate the outcome of arthroscopic posterior cruciate ligament (PCL) augmentation using an autogenous hamstring tendon graft and the posterior-posterior triangulation technique with preservation of ligament remnant or elongated ligament. Materials and Methods: From January 2002 to December 2009, we performed PCL augmentation using an autogenous hamstring tendon graft and the posterior-posterior triangulation technique in 32 patients. The mean age was 35.2 years. Twenty two cases were male and 10 cases were female. Average follow-up period was 5 years and 5 months (range: 2-7.9). Subjective and objective parameters were utilized in analyses, such as the mean range of motion, post. drawer test, Lysholm knee score, Tegner activity score, International Knee Documentation Cominittee (IKDC) grade, and second look arthroscopic examination. Results: At last follow up posterior displacement by the Telos stress test decreased from $10.8{\pm}5.1\;mm$ to $2.8{\pm}3.7\;mm$ (p<0.05). The final Lysholm knee score improved from $60.4{\pm}5.8$ to $84.6{\pm}4.8$. Tegner activity score improved from 3.2 to 4.8. The final IKDC grade was A in 18, B in 11, C in 3. Postoperative Lysholm knee score, IKDC grades, Tegner activity scale, and posterior displacement demonstrated statistically significant improvement compared to the preoperative state (p<0.05). Conclusion: Arthroscopic PCL reconstruction using an autogenous hamstring tendon with preservation of ligament remnant showed a good clinical results and posterior stability.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.26 no.3
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• pp.65-76
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• 2013

Objective : The purpose of this study is to report the effectiveness of a long-term Korean Medicine Treatment on 511 atopic dermatitis patients. Methods : Total 511 atopic dermatitis patients, who has visited oriental medical clinics from 2011.1.9 to 2012.1.31 and continued treatment 3 month to 9 month were analyzed by Objective SCORAD Index(OSI). Subanalysis of OSI were done according to gender, age, treatment period, and intensity. Results : 1. Male and female percent was 42.5:57.5. Age percent was 0 to 11:12 to 18:above 19=30:16.6:53 and 41.9% was steroid users. 2. OSI Improvement rate was significantly higher in women than men after 3 month of treatment, but not significant after 6, 9 month of treatment. 3. There was no improvement difference of OSI among the age. 4. OSI was significantly lower after 3, 6, 9 month of treatment. Average post-treatment score was lowest in 9 month treatment group. 5. 86.7% of total patients reported decrease in OSI score at the final visit. 6. 85.9% was severe, 13.5% was moderate, and 0.6% was mild by OSI intensity assessment at initial visit. The percent changed at final visit to 37% severe, 54.2% moderate, and 8.8% mild. 7. Patient diagnosed as OSI intensity severe at first visit, their average treatment period was 6.58 months and final improvement rate was 36.27%. Conclusion : A significant percent of Atopic dermatitis patients who were treated with Korean Medicine Treatment reported decrease in OSI. There was significant decrease in OSI before and after 3, 6, 9 month treatment. The difference increased with the treatment period.

• Clinics in Shoulder and Elbow
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• v.6 no.2
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• pp.143-148
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• 2003

Objectives: To analyze the postoperative functional outcome of shoulder in patients with arthroscopically assisted repair of large to massive rotator cuff tears with or without acromioplasty and role of acromioplasty. Materials and Methods: From June 1996 to June 2002, twenty six patients with large to massive rotator cuff tears were undergone arthroscopically assisted repair. Mean follow up was over one year. Fourteen were male and twelve were female. Mean age was 51 years old(39-66). Mean duration was 9 months. Acromioplasty was done in 14 cases concomitantly. They were divided into two groups. Group I: arthroscopic cuff repair with acromioplasty(14 cases). Group II: arthroscopic cuff repair without acromioplasty(12 cases). Each shoulder was evaluated at preoperative and final follow-up with Visual Analogue Scale(VAS), University of Pennsylvania Patient self-assessment of pain, University of Pennsylvania Patient self-assessment of function, ASES standardized shoulder assessment form, Simple Shoulder Test, UCLA score and range of motion(ROM). We analyzed the differences between the two groups. Shoulder ROM and acromioplasty were determining factors. Statistics was tested by correlation analysis and repeated measure ANOVA test. Results: At the final follow up, functional outcome and pain were improved but they had no statistical significance between the two groups(p>0.05). Combined procedure, acromioplasty, didn't affect on VAS. UCLA score, University of Pennsylvania Patient self-assessment of pain, University of Pennsylvania Patient self-assessment of function, ASf:S standardized shoulder assessment form and Simple Shoulder Test(p>0.05). In group II, forward flexion and abduction were statistically improved at the final follow up than in group I(p<0.05). Conclusions: It appears that arthroscopic repair is satisfactory procedure in patients with large to massive cuff tears. Combined procedure, acromioplasty, doesn't affect on postoperative functional outcome of shoulder.

• Journal of the Korean earth science society
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• v.26 no.6
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• pp.511-523
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• 2005

The purpose of this study is to analyze the 1st and 2nd Korea Earth Science Olympiad (KESO) items, in order to find informations to enhance item quality. To do this, internal and external item classification frameworks are developed. Item difficulty (P), discrimination index (DI), correlation, and reliability are estimated by using classical test theory. Generalizability is also estimated by applying the generalizability theory. The results of item classification are as follows: (1) ‘Geology’, ‘astronomy’ and ‘data analysis and interpretation’ are dominant in content and inquiry process domain, respectively. Nearly every item has textbook context. (2) There is no difference between the preliminary and final tests in terms of their thinking skills sections. (3) As a whole, the ratio of items with pictures is high in item representation. However, multiple-choice and short answer items are more common in preliminary competition, and essay type items are found more often in final competition. The ratio of simple items is high in middle school section and preliminary competition, but composite items are dominant in high school section and final competition. The findings of item analysis are as follows: (1) In the middle school section, P is low and DI is moderate. But in the high school section, there is a considerable differences between science high schools and other high schools in general. (2) The highest correlation is reported between the scores of meteorology domain and total score in middle school, whereas in high school astronomy domain and total score show the highest correlation. (3) General high school section show the highest Cronbach $\alpha$ and generalizability. (4) General high school section show acceptable generalizability coefficient (> 0.80), but middle and science high school section should increase the number of items to reach acceptable generalizability level.

• English Language & Literature Teaching
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• v.12 no.3
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• pp.267-286
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• 2006

The purpose of the study was to investigate what kinds of learning strategies EFL learners use to learn English grammar and what is benefit from structured grammar input processing. Students of the study consisted of 48 college students who took Practical English Grammar at a university in Kyung-Gi area and were divided into two groups based on grammar scores. The students were asked to take two grammar tasks and grammar tests and complete a survey including questions on grammar strategy and input processing. The results of the study are as follows. First, learners' grammar level has an effect on use of grammar attack strategy including asking teachers, using grammar books and given contexts whereas there was no significant difference between groups in the planning strategies, Among memory strategies, using grammar exercise and linking with already known structure demonstrated a significant difference between groups. Second, with regard to input processing, high level students got higher score on how much they understood the structured grammar input compared with low level students. Third, explicit implicit instruction added to input processing seems more comprehensible and more available than structured input only, Finally, it showed that there is positive relationship between perception and score of input processing tasks and grammar tests. Especially, learners' perception of input processing correlated more with final tests and tasks. Therefore, it suggests that the more input processing task need to develop and utilize in order to facilitate learners' intake.

• The Journal of Korean Academic Society of Nursing Education
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• v.23 no.2
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• pp.205-213
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• 2017

Purpose: This study observes the degrees of perfectionism (both self-oriented and socially-prescribed perfectionism), academic resilience, and satisfaction with major in nursing students and identifies the influence of perfectionism and academic resilience on satisfaction with major. Methods: Data from 115 second or third-year students in a nursing were collected for two months at different three universities. The data were analyzed with descriptive statistics, independent t-test, one-way ANOVA, Pearson correlation coefficient, and hierarchical multiple regression. Results: Satisfaction with major was higher for second year students compared to third year students. And the satisfaction was higher for those with a higher Grade point average (${\geq}_-3.5$) compared to those with a lower. Self-oriented perfectionism had a higher score than socially-prescribed perfectionism and academic resilience based on self-control was rated the highest score of the subcategories. The degree of satisfaction was positively correlated with Self-oriented perfectionism and academic resilience. The final regression model showed that grade and academic resilience accounted for 34.2% of the variance in predicting the level of satisfaction with major. Conclusion: The results suggest that it is crucial to find a strategy that could enhance academic resilience, especially designed for upper-year university students, to improve the level of satisfaction with major.