• Journal of Korean Elementary Science Education
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• v.33 no.4
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• pp.634-645
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• 2014

The purpose of this study was to analyze the teachers' stages of concern and levels of use on STEAM of the 2009 elementary science curriculum and to support effective application according to the teachers' stages and levels. Therefore this study was conducted by the Concerns-Based Adoption Model (CBAM). The total number of 113 teachers participated in this study. The results of the study were as follows: First, most teachers were in the stage of awareness. Second, the results of the chi-square test showed that the stages were significantly different according to their positions, training experiences and final degrees (p<.05). Third, about half of teachers were in the level of orientation and preparation. The others were in the level of routine, integration and renewal. Fourth, the results of the chi-square test showed that the levels were significantly different with the categories of their gender, position, age, career in education, workplace and training experience (p<.05). Fifth, the correlation coefficient between stages of concern and levels of use (r=.59) was relatively high (p<.05). Based on these results, we suggested that the support of application should be provided according to the teachers' stages and levels.

• The Korean Journal of Zoology
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• v.24 no.1
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• pp.27-37
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• 1981

Protein patterns at various stages of pre-and post-fertilization in Drosophila melanogaster were analyzed using polyacrylamide gel electrophoresis. Ovaries at various times after hatching, embryos, larvae and pupae were collected and used for protein analysis. The protein patterns were found to vary qualitatively and quantitatively during oogenesis as well as during embryogenesis and metamorphosis. Yolk proteins, which were found to be synthesized in fat body and transferred into the oocytes, appeared in three bands in the gel in the early stages, but these proteins seemded to be converged into a single band in the late stage of oogenesis. The protein patterns in the post fertilization stages seemed to be abruptly changed at two different stages; between embryonic and larval stages and between the second and third instar stages. The pattern in the pupal stages was not very much different from that of the third instar.

• Korean Journal of Medicinal Crop Science
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• v.18 no.1
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• pp.51-55
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• 2010

This study was conducted to investigate the effect of planting position on the growth characteristics, yield and ginsenoside content in Panax ginseng C.A. Meyer at different growth stages. Referring to shoot growth characteristics, stem length, stem diameter and leave area were higher at front than rear, increasing as the proceeding of growth stages. But a lower chlorophyll contents was caused at front compared to rear and decreased as the proceeding of growth stages contrarily. According to root characteristics, root length and main body length were higher at front, with a positive correlation to growth stages, which was also shown on fresh root weight and dry root weight with the maximum in August. Meanwhile, the effect of planting position on ginsenoside content could also be definite by the highest content at front showing high light intensity, increasing as the proceeding of growth stages as well.

• Journal of the korean academy of Pediatric Dentistry
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• v.34 no.4
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• pp.551-559
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• 2007

This study was to investigate if cervical vertebrae maturation stages are as useful as hand-wrist maturation stages in evaluating the mandibular growth. The subject consisted of 292 girls aged from 8 to 16 years with normal occlusion. They were classified according to diagnosis by using studycast, lateral cephalogram, and handwrist X-ray film. The results were as follow: 1. Cervical vertebrae and hand-wrist maturation stages increased with age. 2. All mandibular measurements (Ar-Go, Go-Me, N-Go, S-Gn, N-Me) increased linearly with cervical vertebrae maturation stages. 3. Ar-Go, Go-Me, N-Go, S-Gn increased linearly with hand-wrist maturation stages. 4. Ar-Go, Go-Me, N-Go, S-Gn increased relatively rapidly between cervical vertebrae maturation stages 3 and 4. Go-Me and S-Gn increased relatively rapidly between hand-wrist maturation stages 6 and 7. 5. Ar-Go, Go-Me, N-Go, S-Gn, N-Me had high correlations with cervical vertebrae maturation stages as well as hand-wrist maturation stages. These results suggest that cervical vertebrae maturation stages are reliable on evaluating the mandibular growth.

• Journal of Korean Library and Information Science Society
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• v.31 no.1
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• pp.23-39
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• 2000

This paper aims to demonstrate the theory of social cognition which librarianship have an effect on societal development. For these purpose, the stages of societal development is classified into three stages of economic growth, information sharing and self-actualization of individual and objectives of developments are investigated by stages. At last, the theory of social cognition which librarianship contribute to societal development are demonstrated with searching the roels of libraries corresponding to the objectives of development stages.

• Proceedings of the Korea Concrete Institute Conference
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• 1999.04a
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• pp.733-739
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• 1999

A theoretical model for flexural behavior of strengthened reinforced concrete beam is developed based on displacement controlled nonlinear finite element method in this study. The developed model is shown to reasonably reproducing the experimental results of variously strengthened reinforced concrete beam. Parametric studies for the strengthened reinforced concrete beam at different loading stages are then performed using this model in order to assess the effect of loading stages at the time of strengthening on characteristic values of strengthened beam under flexure. It was found that depending on loading stages of a beam, deflections at yielding and at ultimate loads are more influenced than corresponding load capacities.

• The Korean Journal of Zoology
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• v.39 no.4
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• pp.387-392
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• 1996

All immature stages, eggs, larvae, and pupae of Korean Thiaspida, T. cribrosa and T. lewisii, are described and Illustrated for the first time. Two species belonging to genus Thiaspida In the subfamily Cassidlnae; T. cribrosa and T. lewisii.Observatiors on bionomics of immature stages and on their taxonomic charaders are also given.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.2
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• pp.1009-1016
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• 2013

Background: The benefits of physical activity are well established and recognized to prevent adults from many chronic diseases and particularly some forms of cancers. Objectives: The present study was conducted to investigate the present status of physical activity among Saudi adults in Al-Ahsa, and to examine the association between the stages of change for physical activity and perceived barriers, and self efficacy. Methods: A cross-sectional study of 242 subjects (118 males and 124 females) attending health centers aged between 20-56 years, were personally interviewed for demographic data, anthropometric measurement, physical activity level, stages of change for physical activity, self efficacy and perceived barriers. Results: Forty eight percent of the females were overweight and 16.9% of the males were obese with no significant difference between the genders for BMI categories. More than half of the females were inactive and 39% of the males were physically active with a significant difference (P=0.007). Twenty percent of the males were in maintenance stage, while similar percentage of the females were in contemplation stage. However the majority of the subjects were in pre-contemplation stage with a significant difference across the stages. Males had a higher mean score of self efficacy and less external barriers of physical activity. The major barrier among the females was lack of time ($7.2{\pm}1.4$) and in the males, lack of motivation ($7.7{\pm}1.4$). The females had less internal ($21.2{\pm}3.8$) barriers comparable to the males ($23.08{\pm}4.7$). Both genders had a significant relationship between stages of changes of physical activity and perceived barriers (internal and external), but in the females no significant difference across the stages was observed for self efficacy unlike the males who had a significant difference for self efficacy and self efficacy categories. Conclusion: The present study provided useful data on stages of change for physical activity and some psychosocial factors (self efficacy and perceived barriers) that can help to tailor strategies aiming at increasing physical activity level according to self efficacy and to the barriers detected, to prevent many chronic diseases including certain types of cancer in Saudi Arabia.

• Journal of the korean academy of Pediatric Dentistry
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• v.46 no.3
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• pp.233-238
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• 2019

This study aimed to assess the skeletal age of skeletal maturational indicator (SMI) and middle phalanx of the middle finger (MP3) stages and to predict the SMI and MP3 stages corresponding to pubertal growth spurt in boys and girls respectively. The skeletal age was assessed from hand-wrist radiographs of 363 children (182 boys, 181 girls) aged 7 to 16 years by radiologists using the Korean standard bone age chart. Also, SMI and MP3 stages were evaluated from the radiographs. From these records, the mean skeletal age of SMI and MP3 stages was calculated. The stages including pubertal growth spurt were SMI 4 - 5, MP3 FG - G stages in boys and SMI 3 - 4, MP3 F - FG stages in girls.

• Journal of Families and Better Life
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• v.13 no.4
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• pp.165-180
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• 1995

The purpose of this study was to investigate the influences of family life cycle stages and perceived time pressure on strategies for coping with time constraints in housewife-teachers. The subjects of this study were 570 married women teachers who live with their husebands and children in junior and senior high schools in Taegu, A questionaire was used as survey method. Factor analysis and MANOVA were employed for data analysis and Scheffe test forpost-hoc analysis. The main findings were : First the effect of family life cycle stages on the use of personal time reducing strategies was different according to perceived time pressure. Second the effect of perceived time pressure on the use of personal time reducing strategies differed according to family life cycle stages. Third the use of strategies for coping with time contratins was found to be significantly different according to family life cycle stages, Forth there were significant differences in the use of strategies for coping with time constrainsts according to perceived time pressure.