• Korean Journal of Medicinal Crop Science
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• v.17 no.6
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• pp.421-426
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• 2009

The purpose of this study was to identify soil physical characteristics as guideline for high yield potential in ginseng cultivated field which produced 6 years root. Harvest yields of ginseng to be divided by parent rock was in order of phyllite and red shale 3.1 kg/$3.3\;m^2$ > granite and gneiss schist 3.0 kg > basalt 2.6 kg > porphyry 2.2 kg in upland and forest soil. Also, with classified by topography, it was in order of foot slope and alluvial fan 3.2 kg/$3.3\;m^2$ > valley 3.0 kg > low hill 2.9 kg > hill, lave flow and dilluvial terrace 2.8 kg in survey tilth. Class determination of soil texture, it was in order of sandy loam 3.1 kg/$3.3\;m^2$ > loam and silt loam 3.0 kg > clay loam 2.9 kg > silt clay loam 2.8 kg in survey tilth. Slope condition of farming land, in case of sloping (2~7%), it was 3.1 kg/$3.3\;m^2$ but deep sloping (15~30%) caused decreasing harvest yield. In drainage classes (excessively, well and moderately well), there was no significantly different in harvest yields. Relationship between harvest yield and soil series, Production sites as yielding 3.0 kg/$3.3\;m^2$ were seven sites, also it was contained 14 soil series. Production sites as yielding 2.5~3.0 kg/$3.3\;m^2$ were eleven sites, it was contained 16 soil series. Production sites as yielding 2.0~2.5 kg/$3.3\;m^2$ were 10 sites, it was contained 4 soil series.

• Convergence Security Journal
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• v.14 no.1
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• pp.33-41
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• 2014

The purpose of this study is to establish the relationship of empowerment and organization attachment with the organization culture of security organization. This study is based by setting the security organization employed in security firms in the capital area(Seoul) in 2012 as the parent population and using the purposive sampling method to analyze a total amount of 280 examples. The frequency analysis, analysis on primary factors, reliability analysis, multiple regression analysis, path analysis methods using SPSSWIN 18.0 were used in analysis. The reliability of the survey showed a Cronbach's ${\alpha}$ value of over 0.690. The results are like the following. First, the organization culture of security organization affect empowerment. Thus, the more a practical development culture is settled, the more the capability of self-determinism, meaningfulness, and effect is amplified. Moreover, the more a consensual culture is established, the more the capability of self-determinism is enhanced, and the more a hierarchical culture is established, the more the meaningfulness is enhanced. Second, the organization culture of security organization affect organization attachment. Thus, the continuous normative attachment is enhanced when a more hierarchical culture is established. Moreover, emotional attachment is enhanced when a more practical development culture is established. Third, the empowerment of security organization affects organization attachment. Thus, the continuous normative attachment is decreased when one's capability of self-determinism is more lacking. However, the continuous normative attachment is higher when the meaningfulness and effect is enhanced. Moreover, emotional attachment is enhanced when meaningfulness is increased. Fourth, the organization culture of security organization directly/indirectly affects empowerment and organization attachment. Thus, empowerment is an important mediating factor between organization culture and organization attachment.

• Horticultural Science & Technology
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• v.33 no.5
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• pp.712-721
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• 2015

To improve the breeding efficiency of oriental pear, heritability, correlation and frequency distribution of fruit ripening date were analyzed using 4,035 seedlings obtained from 15 families between 13 parental cultivars. Although variation of fruit ripening time was higher in most early-ripening parental cultivars than in late-ripening parental cultivars, according to analysis of average, standard deviation, and coefficient of ripening variation for ten years, fruit ripening time obtained from all parental cultivars was inherited narrower and more stable variation than others fruit trait, with 0.92-3.41 in coefficient of variation. The heritability of fruit ripening time was calculated to be over 0.8 in almost all crosses and average fruit ripening time of seedlings from cross combinations could be predicted based on that of the parental cultivars due to its superior heritability relative to other fruit traits. The average ripening time was earlier than the mid-parental value in families obtained from cross combinations using at least one late-ripening cultivar as parent, indicating that the early-ripening trait was more likely to be dominant compared to the late-ripening trait. By contrast, average ripening time was clustered in families of crosses not only between mid-season and early-season cultivars, but also between mid-season and mid-season cultivars. There was highly significant relationship (at 0.68) between mid-parental and progeny mean fruit ripening time. The correlation between fruit ripening time and fruit weight was also highly positive and thus, the mid-parental fruit ripening time could be a potent criterion for indirect selection of fruit weight.

• Korean Journal of Comparative Education
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• v.27 no.4
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• pp.1-22
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• 2017

To date, the study of students with multicultural disabilities has been limited to language problems. The purpose of this study was to investigate the effects of communication between parents and professionals on the IEP and teaching strategies of students in multicultural special education in the United States. From 2015 to 2016, structural equation modeling was conducted using AMOS 21 based on data from 406 elementary, middle, and high school teachers who has experiencing of multicultural disabilities. The correlation coefficients between IEP and the variables affecting instructional strategies were significantly high between -044 and .489 as a whole. Especially, teaching strategy and communication with parents were relatively more effective than professional communication high correlation. In addition, with regard to the impact on IEP and teaching strategies, parental communication has been found to be closely related to IEP and teaching strategies. However, communication with professionals has a direct effect on teaching strategies. There was no significant correlation between parent and professional communication. The purpose of this study is to understand the importance of communication with parents of multicultural disabled students and their interest and opinions on children positively to IEP and teaching strategies so that teachers can communicate continuously.

• Korean Journal of Psychosomatic Medicine
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• v.24 no.2
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• pp.157-164
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• 2016

Objectives : The objective of this study was to investigate the characteristics of language profiles according to whether or not Korean children with autism spectrum disorder(ASD) also have ADHD, and to examine the relationship with executive function. Methods : Participants in the study were boys with ADHD aged 6 to 11 years who visited the clinic from January 2012 to December 2013. In this study, 25 boys with ASD were included, and completed scales included the Korean version of Autism Diagnostic Interview-Revised(K-ADI-R), Korean version of Autism Diagnostic Observation Schedule(K-ADOS), Korean ADHD Rating Scale(K-ARS), and Korean-Conners' Parent Rating Scale(K-CPRS). They also completed neuropsychological tests and assessed language profiles. Patients were categorized into two groups(with ADHD and without ADHD). T-test and Multivariate analysis of covariance (MANCOVA) was used for analysis. Results : Statistically, no difference was found in receptive and expressive language ability between the ASD groups with and without ADHD. However, a lower score in Test of Problem solving(TOPS) was observed for ASD with ADHD than for ASD without ADHD, with problem solving and finding cues showing significant differences. Conclusions : These findings suggest that language profiles in the ASD group without ADHD could be similar to those in the ASD group with ADHD, but comorbid ADHD could lead to more difficulty in linguistic ability for problem solving and could be related with executive function of the frontal lobe.

• Korean Journal of Social Welfare Studies
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• v.48 no.3
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• pp.29-55
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• 2017

This study aims to examine how children's life satisfaction is interrelated with parents' life satisfaction longitudinally. Autoregressive cross-lagged model was employed to analyze the interrelationship between children's and parents' life satisfaction. This study used 6 waves (Elementary school 4th year to Middle school 3rd year) from the Korean Children and Youth Panel Study (KCYPS). The sample size was 1,963 families with child and parent. Key findings are as follows: First, children's and parents' life satisfaction, respectively, was found to influence each other during the study period. Second, parents' life satisfaction were found to have positive and significant cross-lagged impacts on children's life satisfaction. Third, similarly, children's life satisfaction was positively related to parents' life satisfaction longitudinally. The findings suggest that children's and parents' life satisfaction are interrelated in an autoregressive cross-lagged model. This study concludes with implications for enhancing children's and parents' life satisfaction.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.5
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• pp.334-342
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• 2019

This study is empirically intended to look into the effects of parents' perception of their children's forest experience activities on educational effectiveness. The results were as follows. First, parents' perception of forest experience operation activities had a significant effect on educational effectiveness according to the period of participation in forest experience education. And their perception of the appropriate number of teachers to support forest experience had a significant effect on educational effectiveness. Second, parents' perception - which it is appropriate for the current daycare centers to participate in forest experience every day except a day with a lot of fine dust and a day with bad weather- had a significant effect on educational effectiveness. And their perception of appropriate forest experience places had a significant effect on educational effectiveness. Third, parents' perception of appropriate time in the day for forest experience activities had a significant effect on educational effectiveness. Fourth, parents' perception of their children's forest experience activities had a significant effect on communication. As for the above-stated findings, there was a significant difference in educational effectiveness and communication according to parents' perception of their children's overall forest experience activities. Consequently, there is the differences in their perception of educational effectiveness in the number of teachers in charge due to outdoor activities, the relationship with weather due to fine dust, forest experience places, education time, etc, indicating that these common concerns are related to the safe educational activities of children.

• Journal of the Korea Convergence Society
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• v.10 no.5
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• pp.229-238
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• 2019

The purpose of this study is to understand in depth the gambling experiences of delinquent juveniles who have dropped out of school and analyze the content and meaning of gambling experiences. Thus, utilized a Giorgi's phenomenological research method. Data was gathered through in-depth interviews, and the gambling experiences of six youths who are under juvenile law protective disposition were examined through a four-step analytic process. From the results, 6 parent components and 18 sub-components were derived. That is, "the temptation of close gambling", "trapped in the bridle of gambling", "deterioration of life", "damaged of non-official networks relationship", "corruption of existence" and "attempts to escape gambling" were appeared. These results are meaningful because they have allowed researchers to identify the essential meaning and experiential structure of delinquents juvenile' gambling experiences outside of school, which has not been studied thus far. Further, this study has empirical value as its framework includes a joint analysis in terms of welfare and gambling addiction and focuses on a precarious population-delinquent juveniles who have dropped out of school. The results provide a foundation from which practical implications and policy alternatives for the prevention and treatment of gambling problems in delinquent juveniles dropped out of school.

• Phonetics and Speech Sciences
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• v.13 no.4
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• pp.75-87
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• 2021

The purpose of this study was to investigate, longitudinally, interruption behavior which children who do stutter (CWS), children who do not stutter (CWNS) and their mothers and relationship with disfluency of children showed during interactions with their mothers. Subjects for this study consisted of 2-5 year old CWS (male 2 and female 4), an age-matched group of CWNS (male 3 and female 3), and their mothers. Frequencies of normal disfluency (ND) and abnormal disfluency (AD) in children group and frequency of interruption and simultalk duration in children and mothers group were measured two times (initial visit and 12 months later) over the course of one year. As a result, no significant difference was observed in frequency of interruption and simultalk duration both between two mother groups and between two child groups at initial visit and 12 months later. However, frequency of interruption increased significantly over the course of one year in CWS group. A significant group difference was found in frequency of interruption of mothers but, no significant difference was observed in simultalk duration of mothers at initial visit. In the CWS·mothers group, no factors were related with disfluency of children at initial visit and 12 months later. These findings suggest that interruption is not just negative behavior, and that reducing interruption should be considered in child·parent interaction therapy for CWS.

• 한국노년학
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• v.40 no.3
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• pp.511-530
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• 2020

The present study aimed to examine the moderating effects of marital satisfaction (MS) on the association between the number of chronic disease (CD) and depressive symptoms (DS) among ol der men and women. The 6th wave of the Korean Longitudinal Study of Ageing was utilized and the sample was married men (N=585) and women (N=460) aged 65 and over. Multiple regression analysis using SPSS WIN 25.0 and Process Macro was used to test moderating effects of MS. Control variables were age, education, household income, parent-child relationship satisfaction, self-rated health, cognitive function, current smoking status and CD of spouse. Resul ts from elderly men showed the moderating effect of MS was significant. Specifically, those with more CD were more likely to report higher level of DS in the low MS group. However, the effect of CD on DS was not significant in the high MS group. Results from elderly women showed the moderating effect of MS was not significant. This study showed the moderating effect of MS on the association between CD and DS differed by gender in later life. It suggests practical intervention to utilize the resources of spouses is in need to promote mentally healthy aging even though having chronically ill in later life.