• 한국환경과학회지
• /
• 제31권4호
• /
• pp.311-318
• /
• 2022

In this study, we analyzed the relationships between weather factors and photosystem II activity (F_v/F_m), as a measure of photochemical efficiency, in three cool-season turfgrasses commonly planted on golf courses in Jeju, South Korea: perennial ryegrass (Lolium perenne L.), Kentucky bluegrass (Poa pratensis L.), and creeping bentgrass (Agrostis palustris Huds.). In all three turfgrasses, F_v/F_m was higher during late summer than during early summer. However, in late summer, F_v/F_m was significantly lower in perennial ryegrass than in the other two species. In early summer, F_v/F_m in perennial ryegrass and Kentucky bluegrass was positively correlated with mean low temperature and extreme minimum temperature, whereas, in late summer, this parameter in Kentucky bluegrass and creeping bentgrass was positively correlated with relative humidity, and in creeping bentgrass was negatively correlated with mean high temperature, mean low temperature, and extreme maximum temperature. These results indicate that raising low temperatures is favorable for perennial ryegrass and Kentucky bluegrass in early summer, whereas, in late summer, the lowering of high temperatures proves to be beneficial for creeping bentgrass, and raising relative humidity is conducive to the growth of Kentucky bluegrass and creeping bentgrass. These findings will contribute to improving the selection and management of turfgrasses on golf courses and sports fields.

• 한국의류학회지
• /
• 제24권3호
• /
• pp.401-411
• /
• 2000

The objectives of the thesis were to investigate the general trends of clothing conformity and clothing attitudes and to figure out the relationships between clothing conformity and clothing attitudes, and differences of clothing conformity and clothing attitudes between different genders and ages. The conformity includes clothing conformity by informational influence, by identificational influence, and by normative influence. And the clothing attitudes are fashion interests, pursuit of individuality, clothing importance. It was turned out that three types clothing conformity were closely related with variables of clothing attitudes(fashion interests, pursuit of individuality, clothing importance). Particularly, the clothing conformity by normative influence was negatively correlated with pursuit of individuality. And other clothing conformities were positively correlated with the variables of clothing attitudes. It was also turned out that school girls marked high points on the clothing conformity by informational influence and by identificational influence. Middle school students were influenced by identification idol. Most of middle and high school students were believed to recognize the importance of clothing, and they were pursueing both fashion and individuality simultaneously.

• 아동학회지
• /
• 제13권2호
• /
• pp.251-272
• /
• 1992

The purpose of this study is to investigate the relationships among the beliefs of parents and children, children's cognitive and emotional behavior based on cognitive and interreactionary approach models. The Subjects were 138 children (68 eight-year-olds and 70 eleven-year-olds) and their parents. Instruments used in this study were the modified Family Belief Interview Schedule(Alessandri & Wozniak, 1987), the Standard Achievement Test, and Harter's Perceived Competence Scale. Data analysis was by Pearson's r product moment correlation, two-way ANOVA, Fisher-Z test and Student-Newman-Keuls post-hoc test. The major findings are as follows: (1) The beliefs of parents and children has a significant influence children's perception of competence. (2) The congruence of parents' and children's beliefs was hightest in "assumed similarity". (3) Mother's positive view of their children and congruence of mother's and father's beliefs were correlated with children's academic achievement. Parents' positive beliefs and congruence of beliefs were also correlated with children's self-perception of competence.

• Environmental Analysis Health and Toxicology
• /
• 제17권1호
• /
• pp.21-27
• /
• 2002

In order to study the relationships between trace element concentrations of hair and internal organs, autopsy samples of hair, liver, kidney cortex, kidney medulla, heart, lung, spleen, cerebrum, testis and bone from 162 Korean subjects were analyzed for Cd, Hg, Pb and Zn by inductively coupled plasma atomic emission spectrometry. High significant positive correlations were found between the Cd concentration in hair and bone and Pb in hair and lung. Hair Hg levels were highly significantly correlated with organ Hg levels in the liver, kidney cortex, kidney medulla, heart, lung, spleen, cerebrum, testis and bone. And hair Zn levels were highly significantly correlated with organ Zn levels in the kidney cortex, kidney medulla, spleen, testis and bone.

• 한국지역사회생활과학회지
• /
• 제26권2호
• /
• pp.275-286
• /
• 2015

This study investigates the effects of elementary school students' parental attachment and self-control on their peer relationships and the mediating effect of their self-control ability on the relationship between their parental attachment and peer relationships. A total of 490 fifth- and sixth-graders in Andong City were surveyed. Data were collected using a questionnaire for their parental attachment, self-control ability, and peer relationships and analyzed using the t-test, Pearson's correlation analysis, the hierarchical regression analysis, and the Sobel test. The results indicate significant differences in parental attachment, self-control ability, and peer relationships according to gender. Parental attachment was significantly correlated with emotional control ability and behavioral control ability, and there were significant correlations between parental attachment and peer relationships and between self-control ability and peer relationships. Parental attachment had a significant direct effect on peer relationships, and self-control ability mediated the relationship between parental attachment and peer relationships.

• 한국직업건강간호학회지
• /
• 제20권1호
• /
• pp.65-73
• /
• 2011

Purpose: This study investigates nurses' organizational commitment, internal marketing, and occupational satisfaction depending on their age, martial status, clinical experience and income. Methods: The subjects of this study were 350 nurses from six hospitals in Jeolla-do. The t-tests were used to analyze the differences in internal marketing, occupational satisfaction, and organizational commitment depending on their age, marital status, career, and income. The relationships among internal marketing, occupational satisfaction, and organizational commitment were analyzed by the path analysis. Results: The results of this study showed that organizational commitment was correlated with age, clinical experiences, and income, but not significantly associated with martial status. Education and training policy, benefit system, and fairness of the internal marketing were influencing factors on occupational satisfaction. These factors were correlated with organizational commitment through occupational satisfaction. Conclusion: This study addressed the relationships among nurses' internal marketing, occupational satisfaction, and organizational commitment. Based on the results, it is suggested that hospital organizations introduce more diverse incentive policies to enhance nurses' occupational satisfaction and organizational commitment.

• Journal of Nutrition and Health
• /
• 제27권7호
• /
• pp.740-751
• /
• 1994

Sister chromatid exchanges(SCE) in peripheral lymphocytes is recently used as a biomarker for increased cytogenetic damage in smokers. The purpose of the investigation was to determine if there were any relationships between dietary factors and their DNA damage as measured by SCE test in a group of 62 male cigarette smokers and 36 non-smokers. As expected, smokers as compared with non-smokers had high SCE levels (10.59$\pm$0.21 versus 9.23$\pm$0.17 SCE/lymphocytes ; p<0.05). No significant relationships were observed between SCEs and age in smokers and non-smokers. In smokers, SCEs were negatively correlated with egg frequency score(r=-0.336) and total food frequency scores(r=-0.283). In non-smokers, SCEs were positively correlated with white vegetable frequency score(r=0.333) and instant food frequency score(r=0.382). There was a positive association between SCEs and the history of coffee intake of smokers(r=0.318). SCE frequency was not influenced by any other dietary factors considered ; dietary diversity and quality scores, alcohol consumption, use of processed foods and intake of burned food. No significant relationships were found between SCEs and serum cholesterol or other hematological parameters of the subjects. These results indicate that increased egg frequency score, total food frequency score which reflects dietary quality, and decreased coffee intake may reduce cancer risk by preventing smoking-induced DNA damage as reflected by sister chromatid exchanges in human lymphocytes.

• 한국과학교육학회지
• /
• 제16권2호
• /
• pp.217-225
• /
• 1996

Science-related attitudes, perceptions of science classroom environments, and their relationships were investigated for a sample of 535 primary and secondary school students. Two scales of the Test of Science-Related Attitudes and five scales of the Classroom Environment Scale(CES) were administered. Students' perceptions of preferred science classroom environments were also investigated using the same scales of the CES and compared with those of actual classroom environments. The results indicated the primary school students had the most positive attitudes on Enjoyment of Science Lesson and Career Interest in Science. They also had the highest scores on perceptions of actual classroom environments, while the high school students had the lowest scores. Regarding the relationships between science-related attitudes and perceptions of classroom environments, multiple correlations for the five scales of the CES were found to be significant(p<01). The scores of four scales-Involvement, Teacher Support, Order and Organization, Rule Clarity-are significantly correlated with the scores of Enjoyment of Science Lesson. Students' perceptions of preferred classroom environments on the four scales of the CES are significantly higher than those in actual environments. However, students' perceptions of actual environments on Task Orientation are similar to those of preferred environments, and are not significantly correlated with Enjoyment of Science Lesson. Educational implications are discussed.

• 한국의류학회지
• /
• 제10권3호
• /
• pp.63-70
• /
• 1986

The objectives of this study were to investigate the three aspects of clothing behavior of high school toys and the relationships between those of clothing behavior and sex role attitude. For clothing behavior, two types of Clothing Conformity Scales were developed for this study, and two other aspects were assessed with Won, Choi. and Kahng's questionnaires dealing with Unisex Clothing Behavior and The Interest in fashionable Styles of Clothing. Sex role attitude was measured by Choi's questionnairs which was selected from Osmond-Martins's Sex Role Attitude Scale, and from Smith, Ferree and Miller's Feminism Scale. The questionnaires were administered to a sample of 243 high school boys in Seoul. The statistical analyses used for this study included relative frequency, Pearson's correlation, stepwise multiple regression. ANOVA, and t-test. The results obtained from this research were: 1) The liberal attitude of high school boys toward sex role was, in part, negatively correlated to the clothing conformity. 2) There were no significant relationships between sex role attitude ana unisex clothing behavior, and between sex role attitude and the interest in fashionable styles of clothing. 3) The unisex clothing behavior of the students was positively correlated to their interest in fashionable styles of clothing.

• 성인간호학회지
• /
• 제17권2호
• /
• pp.230-238
• /
• 2005

Purpose: The purposes of this study were to explore the concept of uncertainty and to examine the relationships among uncertainty, appraisal of uncertainty, depression, anxiety, and perceived health status in patients with atrial fibrillation. Method: The study utilized a descriptive correlational survey design using a face to face interview method. A convenience sample of 49 subjects were recruited from K university hospital over 8 months. The data were analyzed by t-test, ANOVA, Pearson correlation and partial correlation analysis. Results: 1) Subjects perceived with moderately high uncertainty(M=65.98); moderate physical health(M=39.80), mental health(M=47.38), and general health(M=2.94); moderate anxiety(M= 44.78); and slightly low depression(M=15.33). 2) There were significant differences in uncertainty by gender and education. 3) Uncertainty and danger appraisal were significantly correlated(r=.32, p=.03) while the uncertainty was not associated with opportunity appraisal. 4) Uncertainty was significantly correlated with mental health(r=-.31, p=.04), anxiety(r=.38, p=.01), and depression(r=.37, p=.01). Conclusion: This study was the first trial to explore uncertainty and to examine the relationships among its associated factors in Korean patients with atrial fibrillation. Thus, based on the findings of this study, directions for nursing practice and further nursing research for patients with atrial fibrillation were suggested.