• Magazine of the Korea Concrete Institute
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• v.8 no.3
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• pp.197-207
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• 1996

Maturity is expressed as the integral of time and temperature of concrete above a datum temperature. The maturity concept proposes that concrete of the same mix at the same maturity has the same strength, whatever combination of temperature and time makes up that maturity. In this study, the Nurse-Saul function which was proposed to account for the effects of temperature and time on strength developrnent is used in computing maturity. After existing various functions are considered to relate concrete strength to the maturity value, new strength-maturity function is proposed. Tests ;ire conducted in order to determine d datum temperature and compare prechction value with measured concrete strength. The constants in proposed prediction equation are determined from test results, and the equation is adopted to predict the strength of slab. The slab was cast in the laboratory from the same batch of mold, and cores are cut from slab in order to estimate the actual strength. These values are used to compare with predicted value. The present study allows more realistic determination of early-age strength of concrete and can be efficiently used to control the quality in actual construction.

• Journal of Korean Clinical Health Science
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• v.6 no.1
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• pp.1074-1082
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• 2018

Purpose: This study intends to understand the correlation between career satisfaction and career decision self - efficacy and career maturity of nursing students, and to examine whether career satisfaction and career decision-making self-efficacy affect career maturity. Methods: The data analyzed using IBM SPSS Statistics 20 were collected from April 1, 2016 to April 15, 2014 in 184 students at the four-year college of Nursing in J city. Results: The results of the analysis of the correlation between major satisfaction, career decision self-efficacy and career maturity of nursing college students indicate that there was a positive correlation with career maturity (r=.428, p<.001), career decision self-efficacy (R=.442, p<.001) and majors' satisfaction (r=.605, p<.001) either. likewise, career maturity and career maturity were positively correlated with career maturity and career satisfaction. Conclusions: Therefore, it is possible to enhance and improve adaptation to major through conversations in conjunction with counseling and career guidance from the entrance, and maintaining intimate and solid relationship between the students and professors, also, the students and senior of whom, leading to intensify positive implication to future career.

• Journal of the korean academy of Pediatric Dentistry
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• v.46 no.3
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• pp.247-254
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• 2019

This study aimed to investigate the correlation between maxillary canine's dental maturity and skeletal maturity of growing children. Cephalometric radiographs, hand-wrist radiographs and panoramic radiographs of 299 children aged 6 - 17 years were analyzed to measure the cervical vertebral maturation stages (CVMS), skeletal maturity indicators (SMI) and Demirjian index (DI). Spearman correlation test was used to analyze the correlation between dental maturity and skeletal maturity. There was significant positive correlation between the DI and CVMS in both boys and girls (p = 0.000). Similarly positive correlation was found between the DI and SMI (p = 0.000). The results of this study suggest that the dental maturity of maxillary canine can be used as auxiliary maturity indicator in growing children.

• International Journal of Advanced Culture Technology
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• v.9 no.4
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• pp.61-70
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• 2021

At a time when children of multicultural families have begun to enter adolescence in Korea, this study examined the effects of parental support and bicultural acceptance on the career attitude maturity of multicultural adolescents. This study tried to derive the implications related to the career path of multicultural adolescents by verifying the effects of self-esteem on the relationship between parental support, bicultural acceptance, and career attitude maturity. Using the 8th Multicultural Adolescent Panel Survey data (MAPS), the relative influence of antecedent variables on career attitude maturity was confirmed by hierarchical regression analysis of the data from 1,197 respondents. Model 1 included gender and parental support, Model 2 added bicultural acceptance to Model 1, and Model 3 added self-esteem to Model 2. As a result of the study, in Model 1, women had higher career attitude maturity than men, and the more supportive their parents were, the more positive the level of career attitude maturity. The adjusted R2 of Model 1 was .058, which did not have much influence. In Model 2, gender, parental support, and bicultural acceptance had statistically significant effects on career attitude maturity, and the amount of change in F was also significant. The adjusted R2 of Model 2 was .132. In Model 3, parental support was not statistically significant, and gender, bicultural acceptance, and self-esteem had statistically significant effects on career attitude maturity. The amount of change in F was statistically significant and the adjusted R2 was .185. That is, it was confirmed that the more the women, the more the bicultural acceptance, and the higher the self-esteem, the more prepared and determined the career path. Based on the research results, the implications related to career preparation of multicultural adolescents were presented.

• Asian-Australasian Journal of Animal Sciences
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• v.9 no.3
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• pp.247-254
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• 1996

Three stages of growth of Italian ryegrass (pre-blooming, P-B; early-blooming, E-B; and late-blooming, L-B) were used to evaluate the effect of maturity on in vitro digestion of dry matter, fiber components and gas production. The rumen digestibility and gas production values were obtained by incubation of each sample in the rumen fluid of sheep for 12, 24, 36, 48 and 72 hr, respectively. The results showed that digestibility of dry matter (DM) significantly reduced (p < 0.05) as advancing maturity of the grass. Similarly, the digestibility of neutral detergent fiber (NDF) and acid detergent fiber (ADF) also significantly decreased (p < 0.05) with advancing maturity at all incubation times. However, the effect of maturity on digestibility of cellulose and hemicellulose was only detected when the samples were incubated more than 36 hr, where L-B was lower than P-B and E-B. Potential digestibility of nutrients, the maximum digestibility attainable in the rumen theoretically, was also higher at P-B than those of E-B and L-B. The amount of gas produced by microbial fermentation was closely related to the extent of DM digestion, and it was negatively correlated with advancing maturity of the grass.

• Journal of Families and Better Life
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• v.28 no.2
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• pp.111-121
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• 2010

This study examined the variables that influence career maturity in elementary school students and tested a hypothetical structural equation model relating the variables to career maturity. The subjects were 2,771 fourth-grade children(1,494 boys and 1,277 girls) who participated in a Korea Youth Panel Survey(KYPS) in 2004. Data were analyzed through frequency, percentages, Pearson's correlations using SPSS 15.0and structural equation modeling with AMOS7.0. The findings are as follows. The proposed model, as revised, demonstrated the effectiveness of an analysis of the structural equation model, and illustrated that the socio-economic status of parents has only an indirect influence on children's career maturity via relationship with parents, children's self-image or academic work. In addition, relationship with parents, children's self-image, and academic work independently affected children's career maturity both directly and indirectly. Based on the causal relationships among these related variables, the findings reveal that the best pathway towards children's career maturity is in the order of socio-economic status, relationship with parents, children's self-image, and children's academic work.

• Journal of Family Resource Management and Policy Review
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• v.16 no.3
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• pp.53-65
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• 2012

This study analyzes the relation between family strength, self-efficacy and career maturity of college students. The results from the study are based on surveys, using a questionnaire method, undertaken by students from the Jeonnam area. Data was analyzed using the SPSS 19.0 program and the statistics used for analysis were t-Test, ANOVA, Correlation and Regression. The study found the following results. First, the family strength of the subjects was above average. Second, family strength, self-efficacy, and career maturity showed differences in terms of gender, major satisfaction, career counselling and major area. Third, the correlation among family strength, self-efficacy, and career maturity were observed positively in almost all sub-categories. Forth, the effects of family strength on self-efficacy and career maturity were significant. Based on these results, it is suggested that family strength should be enhanced to improve self-efficacy and career maturity of college students.

• Journal of Fashion Business
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• v.21 no.5
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• pp.122-135
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• 2017

The purpose of this study is to investigate the effect of career decision self-efficacy and course maturity on followership types of undergraduate students majoring in beauty and provide basic data for development of guidelines that can facilitate career decisions. Subjects are 310 students majoring at beauty colleges and universities. Results of this study were as follows. First, career decision self-efficacy was influenced by two underlying factors such as, followership of thinking Style and fatterns of behavior. Second, the effect of followership types on career maturity was significant. Both the higher followership of thinking Style and fatterns of behavior, the career maturity was more affercted. Based on this study, students majoring in cosmetology were divided into type of followership and analyzed according to organic relevance of career decision self-efficacy and course maturity. Based on this, professors or mentors may understand characteristics of college students in cosmetology in explaining characteristics of their profession related to their major. It will be beneficial to provide an opportunity for beauty students to make a reasonable course maturity and career decision self-efficacy with followership types.

• Child Health Nursing Research
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• v.14 no.3
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• pp.305-314
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• 2008

Purpose: This study was done to identify sexual maturity, sexual knowledge and sexual attitude in late elementary school children and to provide basic data to develop more concrete and practical applications for sexual education. Method: The participants were 1,959 fifth and sixth graders from 8 elementary schools in Busan and Gyungnam. Result: Sexual maturity for boys was at the $1.3{\pm}\;.6$ stage and pubic hair $1.2{\pm}\;.6$. Breast maturity for girls was at the $2.3{\pm}\;.7$ stage, and pubic hair, $1.7{\pm}\;.8$. Of the boys, 5.9% had experienced nocturnal emission, and of the girls, 20.9% had experienced menarche. Sexual knowledge was lower than the mean. They were not well informed about contraception and sexual disease. Sexual knowledge of girls and of sixth graders was higher than boys and fifth graders. The more mature students had higher sexual knowledge. Sexual attitude was generally positive but was more positive for girls than for boys. Sexual maturity, sexual knowledge, and sexual attitude were positively correlated. Conclusion: Because sexual maturity comes earlier, systematic sexual education is needed for elementary students. Institutional and economic support should continue to be given to the sexual education programs in school, home and community.

• Food Science and Biotechnology
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• v.15 no.1
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• pp.44-50
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• 2006

Contents of phenolic compounds in peel, flesh, and core of three Asian pear cultivars, Hosui, Niitaka, and Chuwhangbae, were determined at different stages of maturity. Antioxidant properties of methanol extracts of peels at various fruit maturity stages were also evaluated. Total phenolic content decreased with maturity. Arbutin, chlorogenic acid, and epicatechin were major phenolic compounds in young fruits. Catechin, 4-hydroxymethyl benzoic acid, and caffeic acid were detected in peel and core of immature and mature pears. 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging activities of methanol extracts were 16.30 and $15.73\;{\mu}g$ in peel of immature Hosui and Chuwhangbae pears, respectively, and $11.59\;{\mu}g$ in mature Niitaka pears, which was significantly higher than those of other maturity stage in the same cultivar. Inhibitory activities on lipid oxidation of methanol extracts of three cultivars at all maturity stages were similar to that of ${\alpha}$-tocopherol.