• Phonetics and Speech Sciences
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• 제7권3호
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• pp.175-181
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• 2015

This study aims to compare the differences between 'consonant inventory size' and 'phonological variability' in order to examine the phonological development and characteristics of the late-talkers and typically developing expressive language agematched children and to consider the correlations between them. The study participants included fifteen late-talkers and fifteen typically developing expressive language age-matched children(TED group). The results are as follows. First, as regards consonant inventory size, there was a significant difference between late-talkers and TED group. The late-talkers' consonant inventory size was less than TED group. Second, as regards phonological variability, there was a significant difference between late-talkers and TED group. The late-talkers' phonological variability was higher than TED group. Third, in the case of late-talkers, there was no significant correlation between consonant inventory size and phonological variability; however in the case of TED group, there was a significant negative correlation between consonant inventory size and phonological variability. Therefore, phonological ability should be considered in evaluation and intervention of late-talkers.

• Journal of the Semiconductor & Display Technology
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• 제15권1호
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• pp.47-51
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• 2016

Human visual system infers 3D vision through stereo disparity in the stereoscopic images, and stereo visioning are recently being used in consumer electronics which has resulted in much research in the application field. Basically, stereo vision system consists of four processes, which are cost computation, cost aggregation, disparity calculation, and disparity refinement. In this paper, we present and evaluate the existing various methods, focusing on cost aggregation for stereo vision system to comparatively analyze the performance of their algorithms for a given set of resources. Experiments show that Normalized Cross Correlation and Zero-Mean Normalized Cross Correlation provide higher accuracy, however they are computationally heavy for embedded system in the real time systems. Sum of Absolute Difference and Sum of Squared Difference are more suitable selection for embedded system, but they should be required on improvement to apply to the real world system.

• Korean Journal of Remote Sensing
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• 제17권2호
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• pp.141-153
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• 2001

A semi-empirical polarimetric backscattering model for bare soil surfaces is presented. Based on measurements by using polarimetric scatterometers and the JPL AirSAR, as well as the theoretical models, the backscattering coefficints $\sigma$$^0_w$, $\sigma$$^0_{hh}$ and $\sigma$$^0_{vh}$, and the parameters of the copolarized phase-difference probability density function, namely the degree of correlation $\alpha$ and the copolarized-phase-difference $\zeta$, are modeled empirically in terms of the volumetric soil moisture content m$_v$ and the surface roughness parameters $k_s$ and $k_l$, where k=2$\pi$f/c, s is the rms height and l is the correlation length.

• International Journal of Internet, Broadcasting and Communication
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• 제15권1호
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• pp.262-268
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• 2023

It is necessary to investigate how age or gender affects visual perception and social skills in late adolescence. A study on the relevance of visual perception in late adolescence, a period that requires social adaptation through the development of social functions, is necessary. The purpose of this study is to investigate the relationship between visual perception and social skills in adolescence. Visual perception and social skill were evaluated for 18-24-year-olds, who are in late adolescence, and were analyzed for gender differences and correlations with chronological age. This study found that there was a difference in visual perceptual function according to gender in late adolescence, and it was significantly higher in men. There was no significant difference in social skills according to gender. However, there was a significantly positive correlation between chronological age and visual perception, but there was no correlation with social skills. These findings provide novel information regarding the developmental course of visual perception and social skill in late adolescence.

• Journal of Korean Academy of Nursing
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• 제18권1호
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• pp.80-93
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• 1988

This study was planned and carried out to investigate the correlation between premenstrual syndrome and personality in order to provide informations basic to the prevention, alleviation, and care for the premenstrual syndrome. Data on premenstrual syndrome were gatherd from October 20 to 25, 1986 by questionnaire modified by the researcher based on Endicott's Premenstrual Assessment Form. Reliability of the instrument was tested by Cronbach's $\alpha$. Data on personality were gathered in March, 1986, by the high school autorities by standardized Personality Inventory Scale developed by Eung Yun Hwang were used. Subjects numbered 457, 95.2% of the first grade students of H. Girls High School located in Seoul. The correlation and difference between personality traits and premenstrual syndrome analysed by Pearson's Correlation Coefficient, and difference between groups were analysed by the t-test. Personality traits influencing premenstrual syndromal categories were analysed by the multiple regression. The results are as follows : I. The five highist categories of premenstrual syndrome among 18 categories revealed to be Social withdrawal, General discomfort, Lability, Fatigue and Hostility / Anger in rank order. II. Personality traits and Premenstrual syndrome ; 1. Tendency of Psychoneuroses(r＝0.43, p＜.001), psychoses(r＝.39, p＜.001) and anti-social behaviors (r＝0.43, p＜.001) revealed to be significantly correlated to premenstrual syndrome. Hypothesis 1 is accepted. 2. Emotional stability(r＝ -0.38, p＜.001), reflectiveness (r＝ -0.14, p＜.01), masculinity (r＝ -0.10, p＜05) and antonomy (r＝ -0.12, p＜.05) revealed significant correlation, While activity, dominance, sociability and achivement revealed no significant correlation. Hypothesis 2 is partially accepted. III. Significant models of personality traits influencing the premenstrual syndromal categories are ; 1. 5 personality traits : tendency of psychoneuroses, emotional stability, dominance, activity and autonomy revealed to influence Low mood / loss of pleasure significantly. ($R^2$＝.19) 2. 3 personality traits ; tendency of psychoneuroses, emotional stability and sociability revealed to influence Lability significantly. ($R^2$＝.15) 3. 5 personality traits ; tendency of psychoneuroses, activity, emotional stability, sociability and achievement revealed to influence Anxiety significantly.($R^2$＝.18) 4. 3 personality traits : tendency of psychoneuroses, emotional stability and sociability revealed to influence Miscellaneous mood / behavior changes significantly.($R^2$＝.18) 5. 3 personality traits : tendency of psychoneuroses, psychoses and reflectiveness revealed to influence Hysteroid features significantly.($R^2$＝.16) IV. No significant correlation between irregularity of menstruation and premenstrual syndrome was revealed. No significant difference between group of dysmenorrhea and group of non-dysmenorrhea in premenstrual syndrome was revealed.

• The Korean Journal of Emergency Medical Services
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• 제14권1호
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• pp.47-63
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• 2010

Objective : The objective of this study was to survey the job-related empowerment and job satisfaction of 119 emergency medical technicians provide emergency patients with first aid, to examine the correlation between their empowerment and job satisfaction, and to provide basic materials for developing programs to enhance 119 emergency medical technicians' empowerment and job satisfaction. Methods : The survey was conducted with 249 119 emergency medical technicians working at fire stations in an area of Gyeonggi-do during the period from June 26 to August 21, 2009. Using SPSS 14.0 program, we obtained frequencies percentages, means, and standard deviations, and performed independent two sample t-test, one way ANOVA, and Pearson correlation analysis, and Cronbach's ${\alpha}$. Results : 1) The mean score of the subjects' empowerment was 3.32, and that of their job satisfaction was 2.94. 2) As to difference according to general characteristics, no statistically significant difference was observed in empowerment but job satisfaction was statistically significantly different according to gender(t = 2.296, p = .023). 3) As to difference according to job related characteristics, empowerment was significantly different according to license type(F = 3.767, p = .011), and job satisfaction was statistically significantly different according to position(t = 3.222, p = .042), fire fighting experience(t = 2.689, p = .035), and first aid experience(t = 3.991, p = .007). 4) Empowerment was in a positive correlation with job satisfaction(r = .502, p = .000) in general, and by the sub areas of job satisfaction, the correlation with empowerment was high in order of job itself(r = .695, p = .000), interaction area(r = .493, p = .000), organizational demand area(r = .328, p = .000), working condition area(r = .153, p = .015), and wage area(r = .137, p = .031). By the sub areas of empowerment, the correlation with job satisfaction was high in order of significance(r = .424, p = .000), influence(r = .397, p = .000), competence(r = .372, p = .000), and self determination(r = .259, p = .000). Conclusion : The 119 emergency medical technicians' empowerment was in a high correlation with their job satisfaction, and had a strong effect on it. This suggests that 119 emergency medical technicians' job performance can be enhanced by improving their empowerment. These results are expected to be useful in making human resource management plans to enhance 119 emergency medical technicians' job satisfaction by empowering them.

• The Journal of the Convergence on Culture Technology
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• 제8권6호
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• pp.355-363
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• 2022

Purpose : The purpose of this study was to investigate the double mediating effect of ego-resilience and impulsivity in the effects of smartphone addiction on depression among office workers. Research design, data and methodology : The subjects of this study were office workers working in four cities: Seoul, Daejeon, Chungnam, and Chungbuk Province, and the total number of respondents was 286. Descriptive statistics, difference test (t-test, ANOVA), correlation analysis, and double-mediated effect analysis were used for statistics. Results : The results of this study are as follows. First, as a result of the difference analysis, there was no difference in depression according to the general characteristics of the subjects of this study, such as gender, age, marital status, and salary. Second, as a result of correlation analysis, smartphone addiction showed a negative correlation with ego-resilience, and a positive correlation with impulsivity and depression. Also, ego-resilience showed negative correlation with impulsivity and depression. Impulsivity showed a positive correlation with depression. Third, as a result of dual mediating effect analysis, it was found that ego-resilience and impulsivity played double-mediated role between smartphone addiction and depression. Conclusions : Based on the results of this study, theoretical measures centered on ego-resilience were discussed and presented in order to positively induce the decrease in impulsivity and depression due to smartphone addiction among office workers.

• The Journal of Korean Academic Society of Nursing Education
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• 제11권2호
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• pp.151-160
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• 2005

Purpose: The purpose of this study was to identify the levels of stress, anxiety and fatigue of nursing students in clinical practice, and the relationship among these variables. Method: Data was collected by structured questionnaires from 223 nursing students who have practiced at the hospital in Gwangju. Data was analyzed by using descriptive statistics, ANOVA, t-test and Pearson's correlation coefficient. Result: The mean score for stress was 3.87. The mean score for anxiety was 44.88. The mean score for fatigue was 30.79. There was a significant difference of stress according to student grade, practice unit, practice time, satisfaction of clinical practice. There was a significant difference of anxiety according to religion, health status, satisfaction of clinical practice, satisfaction on nursing. There was a significant difference of fatigue according to religion, health status, practice time, satisfaction of clinical practice, selective motivation on nursing, satisfaction on nursing. Conclusion: This study revealed that there was a significant correlation among stress, anxiety and fatigue of nursing students in clinical practice.

• Journal of the Korean Society of Food Culture
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• 제31권2호
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• pp.131-140
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• 2016

This study analyzed the Food Neophobia Scale (FNS) and Korean food perception status of Southeast Asian workers living in South Korea in order to build up basic data to develop a desirable diet program. From our study, we found that FNS was higher in the order of Cambodian, Myanmar, Vietnamese, and Thai workers. Influential demographic factors for FNS were cooking possibility and place of residence. The mean scores of Cambodian workers ($3.46{\pm}0.63$) regarding "positive perception of cooking method, taste & color" about Korean food were the highest among the four countries, followed by Vietnam ($3.38{\pm}0.68$), Myanmar ($3.26{\pm}0.50$), Thailand ($3.09{\pm}0.64$)workers(p<0.01). The mean scores of Myanmar workers regarding perception of "difference in cooking method, smell & texture" and "difference in taste" were the highest among the four countries. FNS had a negative correlation with the factor "positive perception of cooking method, taste & color" regarding Korean food and a positive correlation with the factors "difference in cooking method, smell & texture".

• Journal of Korean Academy of Fundamentals of Nursing
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• 제11권2호
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• pp.213-219
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• 2004

Purpose: This study was done for the purpose of comparing death orientation scores of nurses before and after a hospice training program. Method: The participants were 56 nurses who completed the hospice training program at C university in Kwang Ju city. The data were gathered from October 2001 to December 2002 by questionnaire. The data were analyzed by using frequency, paired t-test, ANOVA and Pearson's correlation coefficients. Results: The mean scores for death orientation before and after hospice training were mid range scores of 57.2 and 57.0 respectively and this difference was not significant. The death orientation score before hospice training was significantly different according to the 'work place (F=3.16, p=.033)' of nurses but after the hospice training there was no significant difference for any of the general characteristics. The death orientation scores before and after hospice training showed no correlation with the religiosity score either. Conclusion: Considering the mid range scores and the lack of significant difference after the intervention, this study shows that there is a need to analyze the content of hospice education programs and the need to change death orientation. This is especially true when the participants are professional hospice nurses who are being prepared to give care to people who are dying. In order to develop more appropriate programs there is a need to examine the process by which nurses come to view death more positively.