• Journal of Korea Water Resources Association
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• v.38 no.12 s.161
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• pp.995-1008
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• 2005

In this study, the principal components of rainfall in Korea are extracted by a method which consists of the independent component analysis combined with the wavelet transform, to examine the spatial correlation between seasonal rainfalls and global sea surface temperatures (SSTs). The 2-8 year band retains a strong wavelet power spectrum and the low frequency characteristics are shown by the wavelet analysis. The independent component analysis is performed by using the Scale Average Wavelet Power(SAWP) that is estimated by wavelet analysis. Interannual-interdecadal variation is the dominant variation, and an increasing trend is observed in the spring and summer seasons. The relationships between principal components of rainfall in the spring/summer seasons and SSTs existed in Indian and Pacific Oceans. Particularly, the SST zones, which represent a statistically significant correlation are located in the Philippine offshore and Australia offshore. Also, the three month leading SSTs in the same region we strongly correlated with the rainfall. Hence, these results propose a promising possibility of seasonal rainfall prediction by SST predictors.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.11
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• pp.6719-6727
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• 2014

This study examined the relationships between self-control and addictive mobile phone use among nursing students. The data was collected through structured questionnaires from 293 students and analyzed using a t-test, ANOVA, Scheffe's test and Pearson's correlation coefficients on SPSS WIN v 18.0 and AMOS v 18.0. The mean scores of self-control and addictive mobile phone use were $3.42{\pm}0.45$ and $2.69{\pm}0.45$, respectively. A statistically significant negative correlation was observed between self-control and addictive mobile phone use (t=-.447, p<.01). In addition, self-control explained 28% of the addictive mobile phone use. Intervention programs to improve self-control should be developed to prevent addictive mobile phone use for nursing students.

• Plant Resources
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• v.5 no.3
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• pp.196-201
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• 2002

This study was conducted to investigate the relationships between yearly variations of climatic elements and yearly variations of productivity in sesame. In addition, correlation coefficients among yield and yield components were estimated. The data of yield and yield components were investigated for 10 years from 1992 to 2001. The meteorological data gathered at the Yeosu Weather Station for the same period were used to find out the relationships between climatic elements and productivity. Yearly variation of the amount of precipitation in July and September were large with coefficients of variation(c.v.) of 64.59, 92.47%, respectively, but the variation of the average temperature in June and August were relative small. Yield and plant height greatly with c. v. of 26.24, 23.41 %, respectively, 1, 000 grain weights show more or less c.v. of 3.83% and length capsule setting show still less variation. Correlation coefficients between maximun temperature in period of cultivation(from June to September) and yield are positively significant at the level of 5.1 %, respectively. Correlation coefficients amount the plant height, length capsule setting, number of capsules per plant, weight of 1, 000 grains and seed yield were positively significant at the level of 1 %, respectively. Simple linear regression equations by the least square method are estimated for number of capsules per plant(Y$_1$) and the maximun temperature in August(X) as $Y_1$=10.1255+0.1725X, and for yield(Y$_2$) and the maximun temperature in August(X) as $Y_2$=21.6151 + 1.3724X.

• Journal of Digital Convergence
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• v.15 no.1
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• pp.311-320
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• 2017

The purpose of this study investigates the relationships between nurses' image, professional self-concept and nursing professionalism in nursing students, and explore the plan of nursing education for the establishment of exemplary nursing professionalism in nursing students. A convenience sample of 292 subjects were recruited from one university in G city. And data were collected from November 11 to November 15, 2015. Data were analyzed using t-test, ANOVA, Pearson's Correlation, Stepwise Multiple linear regression analyses with SPSS 21.0 Program. The nursing professionalism of nursing students showed a significantly positive correlation of nurses' image(r=.821, p<.001) professional self-concept(r=.701, p<.001). Fifty-seven percentage of the variance was explained by nurses' image, professional self-concept and grade. Therefore, on the basis of this study's result, when nursing educational programs are developed to make positive professionalism, these factors need to be consider.

• Journal of Digital Convergence
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• v.14 no.7
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• pp.251-258
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• 2016

This study was to identify the relationships between activities of daily living(ADL) and stress by health characteristics in elderly living alone. A total of 260 subjects were selected through convenient sampling. Data were collected with a self-reported questionnaire from October 20 to November 20, 2014. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson Correlation Coefficients. Differences in ADL and stress according to health characteristics were as follows. ADL were significantly different according to problem of dietary habits. drinking, unsuitable health care, management groups. Stress were significantly different according to stress and availability and drug abuse. There was a negative correlation between ADL and stress. The findings of this study may be useful in understanding the health status of elderly living alone and developing more specific programs about ADL and stress control. Getting older, with the change in weight and chronic diseases, as the elderly living alone are indisposed with ADL, the applicatiom of physical activity programs and a stress management strategy is required.

• Journal of Environmental Science International
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• v.28 no.11
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• pp.935-942
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• 2019

Statistical analysis was carried out to identify the influence on environmental factors between paddy water chemical properties and Chl-a concentration (algae biomass index) using water samples collected in June for 3 years at rice paddy field. As a result of correlation analysis, there was a significantly negative relationships in DO(-0.366) and pH(-0.141). In contrast, significantly positive relationships were founded in COD(+0.431) and TOC(+0.422). According to the result of factor analysis, 3 factors were obtained and indicated that PC1 were Ca, K, Mg cation, PC2 were TOC, T-P, $PO{_4}^{3-}-P$ and DO, and PC3 were T-N and $NH_4{^+}-N$. As a result of linear regression analysis to develop a prediction model for chl-a concentration, the total amount of explanation was 20.6%, PC2 had the greatest influence on the increase of chl-a concentration and PC1 also showed a positive correlation but the PC3 has a negative correlation. In conclusion, carbon and phosporous content are the main factors for the increase algae blooms of rice paddy.

• Journal of the Korean Society of School Health
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• v.9 no.1
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• pp.69-75
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• 1996

The aim of this study is to find out the correlations between heaith behaviours of young people and the relationships with social factors, which can be helpful for the development of health promotion programmes for youths. The main socializing arenas influencing children's development of health and health behaviour are school, peers and parents. In this study, the selected social factors are based on these arenas. And the following seven health-related behaviours were selected: smoking, drinking alcohol, drinking coffee, irregularity of taking main meals, regular exercise, brushing teeth, and use of medicine for nourishment or restoratives. These health behaviours categorized into two groups; health- promotiong and health-damaging behaviours. The results were summarized as follows; Significant positive correlations were found between health damaging behaviours-drinking alcohol, coffee, smoking, irregularity of main meals, drinking alcohol. But, No consistently significant correlations were revealed among health promoting behaviours and between health promoting and health damaging behaviours. If total group were devided into four groups by gender and grade, these correlations were a little weak. Although such division, the correlations among health damaging behaviours were still significant. The result is also found that health behavious and various social factors were strongly correlated. Particulary, health damaging behaviours showed a consistent correlation with social factors. This consiatensy was simillar to the figure of other contries in Europe. In conclusion, a more comprehensive explanation on health behaviour bacame possible if the analysis on the correlations were made by dividing health behavious into "health-promotion" and "health- damaging". And the health promotion programmes can be more effective when they focus on the correlation of health behavious and inter-relationships between health behavious and various social factors, rahter than focus on individual behavious.

• Journal of Convergence for Information Technology
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• v.9 no.8
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• pp.170-179
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• 2019

This study was narrative research study to find out the effect of adolescents' social media addiction tendencies on interpersonal relationships. This research data was collected from 250 middle high school students in G city, Gyeongnam and collected data was analyzed with t-test, ANOVA, Pearson's correlation, Multiple regression coefficient using SPSS 23.0 program. SNS addiction tendency scores according to general characteristics of adolescents were gender (t= -2.25, p = .011), duration of SNS use (F= 3.15, p= .015), average usage time (F= 15.87, p=. 001), SNS media (F= 3.12, p= .027), and SNS media usage time (F= 6.58, p= .001) were statistically significant. As a result of verifying the correlation of main variables, addiction tendency of SNS had statistically significant static correlation with interpersonal relationships. Influencing factors of interpersonal relations were Addiction tendency of SNS(${\beta}=-.64$, p=.<001) Interpersonal relationship explained 37% of the total variability.

• The Journal of the Korea Contents Association
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• v.22 no.10
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• pp.392-403
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• 2022

The purpose of this study is to investigate the effect of interpersonal relationships and communication skills of nursing students who received blended learning classes on adjustment to college Life. The subjects of this study were 133 first and second year nursing students. The survey was conducted from november 22th to december 3th. 2021. The data was analyzed with the SPSS/WIN 26.0 program. Descriptive statistics and meen differences were analyzed using an t-test, ANOVA, Pearson's correlation coefficient, Multiple regression. The result adjustment to college life of interpersonal relationship, communication competence it was found that there was a significant positive correlation between. The factors of communication competence, interpersonal relationship, Nursing and admissions motivation were impact on the adjustment to college life level of nursing students. The explanatory power of this was 44.3%. In conclusion, a strategy for improving communication skills and smooth interpersonal relationships is needed so that nursing students who have received blended learning can adjustment to college life.

• Journal of Families and Better Life
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• v.26 no.4
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• pp.103-117
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• 2008

The purpose of this study was to investigate the relationships between female adolescents's relationships with their parents, psychological well-being, and attitudes towards eating. General characteristics of the subjects such as their school grades, and religion, and their parents' level of educational, marital status, and income were also analyzed in relation with the three major variables. Female adolescents' psychological well-being consisted of two indices: self-esteem and depression. The sample of this study consisted of 419 female students from 4 middle schools and 2 high schools located in Jeollabuk-Do province and the data were collected by using the method of self-administered questionnaires. The results of the analyses showed that there were significant differences in the level of parental attachment across parents' marital status, father's education level, and family income. Participants' psychological well-being levels were also different according to their grades, parents' marital status, and father's education level and income; and the level of eating attitude was different according to their school grades. The correlation analyses results indicated that parental attachment was positively related to self-esteem but negatively to a depressive mood. In addition, female students' eating attitudes were negatively associated with parental attachment and self-esteem, but positively with a depressive mood. Finally, multiple regression analysis found that a negative eating attitude was strongly influenced by a depressive mood, while parental attachment seemed to influence eating attitude indirectly through a depressive mood.