• The Journal of Korean Academy of Prosthodontics
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• v.40 no.2
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• pp.131-139
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• 2002

There have been many studies about marginal discrepancy of single restorations made by various systems and materials. But many of statistical inferences are not definite because of sample size, measurement number, measuring instruments. etc. The purpose of this study was to compare the marginal adaptations of the anterior single restorations made by different systems and to consider more desirable statistical methods in analysing the marginal fit. The in vitro marginal discrepancies of three different all-ceramic crown systems (Celay In-Ceram. Conventional In-Ceram. IPS Empress 2 layering technique) and one control group (PFM) were evaluated and compared. The crowns were made from one extracted maxillary central incisor prepared with a 1mm shoulder margin and $6^{\circ}$ taper walls by milling machine. 10 crowns per each system were fabricated. Measurements or a crown were recorded at 50 points that were randomly selected for marginal gap evaluation. Non-parametric statistical analysis was performed for the results. Within the limits of this study, the following conclusions were drawn: 1 Mean gap dimensions and standard deviations at the marginal opening for the maxillary incisor crowns were $98.2{\pm}40.6{\mu}m$ for PFM, $83.5{\pm}18.7{\mu}m$ for Celay In-Ceram, $104.9{\pm}44.1{\mu}m$ for conventional In-Ceram, and $45.5{\pm}11.5{\mu}m$ for IPS Empress 2 layering technique. The IPS Empress 2 system showed the smallest marginal gap (P<0.05). The marginal openings of the other three groups were not significantly different (P<0.05). 2 The marginal discrepancies found in this study were all within clinically acceptable standards ($100\sim150{\mu}m$). 3. When the variable is so controlled that the system may be the only one, mean value is interpreted to be the marginal discrepancy of a restoration which is made by each system and standard deviation is to be technique-sensitivity of each one. 4. From the standard deviations. the copy-milling technique (Celay/In-Ceram) was not considered to be technique-sensitive in comparison with other methods. 5. Parametric analysis is more reliable than non-parametric one in interpretation of the mean and standard deviation. The sample size of each group has to be more than 30 to use parametric statistics. The level of clinically acceptable marginal fit has not been established. Further studies are needed.

• Korean Journal of Ophthalmology
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• v.32 no.6
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• pp.488-496
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• 2018

Purpose: This study aimed to analyze the factors influencing visual field recovery after transsphenoidal approach-tumor resection (TSA-TR) in pituitary adenoma patients with visual field defects (VFDs). Methods: We retrospectively evaluated 102 eyes of 102 patients with VFDs induced by pituitary adenomas who underwent TSA-TR between January 2010 and December 2015. All patients had been observed for more than one year. The severity of the VFD in each patient was evaluated using the mean deviation (MD) and pattern standard deviation in the most-affected eye. Clinical and demographic data such as preoperative visual acuity and visual field, age, sex, tumor volume, neurological symptoms at diagnosis, duration of symptoms, patterns of the preoperative VFD, and preoperative central VFD were investigated and analyzed for association with recovery of the visual field. Results: Recovery from VFDs occurred in 71 (69.6%) eyes after a mean period of $18.36{\pm}5.21$ months. The recovery group was younger (p = 0.003), had higher preoperative MD values (p = 0.016), and had better preoperative visual acuity (p = 0.03), compared with the non-recovery group. Preoperative central VFD (p = 0.006) and preoperative bilateral VFD (p = 0.016) were significantly less frequent in the recovery group. Multivariate logistic regression revealed that age at diagnosis (odds ratio [OR], 0.962; p = 0.022), preoperative MD (OR, 1.069; p = 0.046), preoperative central VFD (OR, 0.212; p = 0.039), and preoperative bilateral VFD (OR, 0.212; p = 0.035) were associated with visual field recovery after TSA-TR. Conclusions: Younger age, higher preoperative MD, and the preoperative abscence of central VFD or bilateral VFD were favorable factors influencing visual field recovery after TSA-TR in patients with pituitary adenomas. An understanding of the associated clinical factors may help predict visual outcomes after TSA-TR in pituitary adenoma patients with VFDs.

• Journal of Families and Better Life
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• v.34 no.6
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• pp.1-14
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• 2016

The purpose of this study is to examine the relation among adolescents' perception of parental overprotection, goal-seeking orientation, self-handicapping and academic procrastination. Questionnaires were administered to 1200 male and female high school students in Gyeonggi Province. A total of 942 questionnaires were statistically analyzed through mean, standard deviation, frequency analysis, one-way analysis of variance, Pearson's correlation analysis, and multiple regression analysis. The major results of the study are as follows: First, adolescents' academic procrastination differed by school grades. Second, for the high-performing group, self-handicapping, goal-seeking orientation and parental overprotection were significant predictors of their academic procrastination. For the mid-level performing group, self-handicapping and goal-seeking orientation were significant predictors of their academic procrastination. For the low-performing group, self-handicapping was the only predictor of their academic procrastination. Third, for the high-performing group, self-handicapping meditated the relation between parental overprotection and academic procrastination. Those results provide useful information regarding proactive support or intervention for adolescents' academic procrastination.

• Journal of the Korean Home Economics Association
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• v.43 no.4 s.206
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• pp.161-172
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• 2005

The present study investigation the effect of a project approach program on children's cognitive styles. It examined closely the characteristics and processes of the project approach program to determine its impact on children's individual cognitive styles such as divergent thinking, field independence, and reflection. The subjects were 384-year-old children. Eighteen children were assigned to the experimental group and twenty to the control group. Pretest-treatment-posttest design was adopted for this study. Collected data were analyzed with SPSS Win 10.0 and processed statistically using average, standard deviation, and ANCOVA. For the children's divergent thinking, the children with the project approach program showed significant difference in fluency and flexibility, but no difference in originality and elaboration, compared to the children in the control group. Children with the project approach program showed more field independence than those in the control group. Children with the project approach program showed no difference in reflection. These results showed that the project approach pro!3ram partly influenced the children's cognitive styles.

• Journal of Families and Better Life
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• v.5 no.2
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• pp.145-162
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• 1987

The purpose of this study is to investigate the relations between Wives' marital satisfaction and Divorce attitude as a basis building in marital stability . A measurement tools used for this study are marital satisfaction scale, which was adapted and reproducted from Dyadic Adjustment Scale(DAS) developed by Spanier and Divorce attitude Scale, which was developed by researcher refer to preceding study connected with a cause of divorce. The subjects were 354 married women dwelling in Seoul. Statistical methods such as frequency, percentile. mean , standard deviation, one way ANOVA, and Pearson Correlation were used for data analysis. The results of this study are as follows; 1) there is the tendency to high marital satisfaction group rather more than low marital satisfaction group and to permissional attitude group rather more than negative attitude group about divorce attitude. 2) There was difference in marital satisfaction by number of children, wives's educational level, parents marriage happiness. While, there was no difference in marital satisfaction by length of marriage, family income, wives employments status, marriage pattern. 3) There was partially difference in wives' attitude toward divorce by wives educational level, family income. Both there was no difference in wives attitude toward divorce by the other factors. 4) wives' attitude toward divorce correlates with marital satisfaction. The correlation coefficients is 283 significantly of .001 level. The more satisfaction wife feels about her own matrimony. the more negative a attitude she has toward divorce. This menas that attitude toward divorce depends upon their matrimony. 5) The four type of marital stability are as follows; high marital stability type, high subjective unstability type, high objective unstability type, high marital unstability type.

• Journal of the Korean Society of Physical Medicine
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• v.8 no.4
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• pp.513-523
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• 2013

PURPOSE: The purpose of this study was to investigate characteristics of the forced pulmonary function test effect and abdominal muscles activation by combined complex exercise with abdominal drawing-in maneuver training of chronic stroke patients. METHODS: 14 post stroke patients(10 males and 4 females) involved voluntary this study and we divided two groups into CEG(complex exercise group) and CEAG (complex exercise and abdominal drawing-in maneuver group).(n=7, per goup). Each groups implicated the 2 times, 30minute exercises for 6 weeks a day. The CEAG performed the complex exercise 15 minutes and 15 minutes of abdominal drawing-in maneuver. For data analysis, the mean and standard deviation were estimated; non-parametric independent t-test was carried out. RESULTS: According to the study, in the combined complex exercise with abdominal drawing-in maneuver group, FVC and activation of transversus abdominis/internal oblique were statistically significant difference compared to the complex exercise group. CONCLUSION: These results indicate that the combined complex with abdominal drawing-in maneuver was efficient in enhancing abdominal muscles activation and pulmonary function of chronic stroke patients.

• The Korean Journal of Rehabilitation Nursing
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• v.7 no.2
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• pp.213-219
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• 2004

Purpose: This study was designed to explore the attitudes of physicians and nurses. Method: Attitudes were measured by using the korean version of the SADP(Scale of Attitudes toward the Disabled Persons : Choi, G. H., & Lam, C. S., 2000). A korean version SADP consist of 24-item, six-point Likert-type scale(the points are -3, -2, -1, +1, +2, +3, where -3 is disagree very much and +3 is Agree very much), measuring general attitudes toward people with disabilities. The sample included 90 physicians, 114 nurses at a university hospital in Busan. The data were collected using questionnaires, and were analyzed using frequency, percentage, mean score, standard deviation, t-test and one-way ANOVA. Result: When studying the physicians group by itself, SADP scores tended to increase with women physicians, old age, married, higher educational level, more years of experience, medical unit. When studying the nurses group by itself, SADP scores tended to increase with the age of thirty, single, educational level, more years of experience, surgical unit. But not to a statistically significant degree. Conclusion: Findings suggest that the nurses had significantly higher score than the physicians(t=-4.63, p<.001). When studying the physicians group and the nurses group by itself, not to a statistically significant degree.

• Journal of Korean Home Economics Education Association
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• v.11 no.1
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• pp.1-11
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• 1999

The purpose of this study were to analyze high school girls’sex role identity and underwear purchasing behaviors, and to provide the educational guidelines for high school girls as a underwear comsumer and the fundamental data necessary for the products planning of underwear manufacturing companies. The questionnaire was composed of questions about the types of sex role identity, pursuit factors and purchasing behaviors of underwear. The respondents were girls from 6 high schools in cities in Chonbuk Province. The questionnaires were collected from April 6th to May 12th in 1998. 510 questionnaires were used for data analysis. Frequency, percent, average, standard deviation, F-test, $$\chi$^2$-test, and Duncan’s multiple range test were followed. The results of this study were as follows：1. Among the sex role identity groups, the androgynous group was the largest, and the masculine group was the smallest among high school girls. 2. High school girls sought after practicality most when purchasing underwears, but sought after the brand least. The androgynous group recognized practicality, aesthetics, and sexual attraction most, but the undifferentiated group recognized them least. 3. The high school girls bought underwears objectively when they were worn out, made use of TV, newspaper, and radio advertisements as the information sources, and considered the size, comfort, and style. They recognized the prices of underwears as moderate. They depended on their mother most when purchasing underwears and reflected their dependents opinion on selecting underwears partially. They purchased at the underwear specialty store.

• Korean Journal of Childcare and Education
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• v.16 no.5
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• pp.27-45
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• 2020

Objective: The purpose of this study is to develop a music making program that utilizes the characteristics of the picture books medium through the ADDIE model so that teachers can easily apply it to children, and to determine whether it affects children's musical aptitude and music creativity. Methods: The Participants of the study were 42 five-year-old children attending a daycare in Seoul, of which 20 were in the experimental group and 22 in the comparative group. The experimental group participated in a music production program using picture books, and during the same period, the comparison group participated in music activities suggested by the Nuri Course. Using the SPSS 22.0 program, average, standard deviation, independent sampling t-test, and ANCOVA(Analysis of Covariance) were calculated. Results: The music making program using picture books improved children's rhythm and tone which are the sub-items of music aptitude. The music making program enhanced children's music flexibility, music creativity, music logic which are the sub-items of music creativity. Conclusion/Implications: The music making program presented systemic teaching-learning method with which teachers explained the modeling and practiced from simple activities to various activities repeatedly in order to make teachers approach music making more easily. It is recommendable to make the music making program by using I-pad and computers.

• The Journal of Korean Medicine
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• v.39 no.1
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• pp.13-21
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• 2018

Objectives: The objective of this study is to develop the diagnostic tool to distinguish between cold syndrome (CS) and heat syndrome (HS). Methods: A total of 1,753 subjects were divided into three groups, those are CS group, intemediate group, and HS group, by the mean and standard deviation of the cold heat syndrome differentiation score using 7 point scale consisting of 9 items. Demographic characteristics, diseases history, health status, Mibyeong, syndrome differentiation were analyzed. Results: CS is characterized by women, elderly, and low body mass index. CS has a history of thyroid disease, cataract, depression, osteoporosis, and HS has a history of prostatomegaly. CS receives less social psychosocial stress than HS, and the quality of life associated with health status is lower than HS. CS group has the tendency to be tired, painful, sleepless, dyspeptic and anxious. Conclusions: CS is a set of symptoms associated with decreased energy metabolism and decreased metabolic function, and is more likely to be unhealthy than HS.