• The Journal of the Korea Contents Association
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• v.14 no.6
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• pp.466-476
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• 2014

The purpose of this study was to examine the relation of day-care teachers' communicative competence and family-teacher communication. One hundred and fifty five teachers in day-care centers in Gyeonggi-do Suwon-si participated in the study and descriptive, correlation, multiple regression analysis were conducted. The results are as follows: First, the communicative competence of day-care teachers differed according to their age, education and career level and their type of institute. Second, the family-teacher communication level of day-care teachers differed according to their education level and their type of institute. Thirds, the communicative competence of day-care teachers had a statistically significant positive correlation to family-teacher communication.

• Journal of The Korean Association of Information Education
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• v.14 no.4
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• pp.651-658
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• 2010

This paper is to study adequacy of developing tutorial series for primary school students regarding MOS certification and to analyze a validity. In order to analyze a level of difficulty, current primary teaching materials being used after class, in comparison with ICT discretionary hour materials being used through primary discretionary class, were evaluated. It was done by primary teachers with in- depth understanding of a level of difficulty and after class instructors using Likert scale through quantitative analysis. As a result, level of PowerPoint has a satisfactory fit (76%), however, the degree of difficulty of Word and Excel is quite high. On its subject matter, there is quite a dispute with present curriculum. Therefore, in order to introduce MS-Word or Excel, it is necessary to adjust a level of difficulty or related subjects according to the level of students.

• Proceedings of the Korean Journal of Food and Nutrition Conference
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• 2000.05a
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• pp.9-11
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• 2000

국민의 영양상태가 크게 향상되어왔고 일부에서는 영양과잉과 운동부족으로 인한 비만에 대한 우려가 고조되고 있지만 최근에도 유아나 성장기 어린이들의 철분부족상태에 대한 문제점이 제기되고 있다. 외국에서는 철분 필요량이 높은 성장기 어린이나 유아들에게 영양학적 품질을 개선한 철분강화제품을 공급하기 위하여 이에 대한 연구가 오래 전부터 진행되어왔으나 여러 실험자에 의하여 행해진 실험조건, 사용된 철분염의 종류가 달라서 정확한 비교평가를 하기에는 미흡하다고 사료된다. 여러 가지 식품에서 특히 우유는 영양학적으로 완전식품이라고 하지만 철분은 거의 함유하고 있지 않아서 효과적으로 철분을 강화할 수 있는 기술은 국민영양개선 효과면에서 매우 유용하다고 사료된다. 본 연구에서는 식품첨가물로서 사용되고 있는 철분염 11종을 우유에 100 ppm수준으로 첨가하고 4$^{\circ}C$에서 저장하면서 pH, 지방산패도, 색도변화를 평가하여 우유에 사용하기 적합한 철분염을 1차적으로 선정하였다. 품질평가 결과를 종합하여 분석할 때 ferric citrate, ferric ammonium citrate, ferrous lactate가 철분강화우유 제조에 적합한 것으로 평가하였다. 또한 지금까지 철분강화식품에 일반적으로 자주 사용하고 있는 ferrous sulfate는 우유에 적합하지 않은 것으로 나타났으나 비교치로 사용하기 위하여 다음 실험에 사용하였다. 이상에서 screening된 철분염을 첨가한 우유를 HTST, LTLT으로 각각 살균하고 저장하면서 품질을 평가한 결과 HTST법이 LTLT법보다 PH, 지방산패도, 색도변화에서 나쁜 것으로 평가되었고, 철분염 종류에 따른 차이는 LTLT, HTST법에서 ferrous lactate가 우수한 것으로 나타났다. 본 연구에서 사용된 철분염 가운데에서는 ferrous lactate, ferric citrate가 유제품에 사용하기에 적합한 것으로 나타났다. 생이용성을 평가하기 위하여 우유에서 low molecular weight components(ILC)를 분리하고 철분과 복합체를 형성시킨 다음, 철분 결핍된 쥐의 소장에서 loop을 형성시켜 ILC-철분 복합체를 injection하여 철분 흡수도를 조사하였다. Ferrous lactate 100ppm에서 약 25.6%흡수되었고 ferric citrate 100ppm은 24.7%, ferrous sulfate는 19.7%흡수되었다. ILC를 첨가하지 않은 100ppm 철분염 용액은 ferrous sulfate를 제외하고는 흡수도가 감소되었다. 철분 결핍된 쥐에게 gavage 방법에 의하여 철분강화우유를 투여하였을 때 철분 25ppm 시료에서는 ferrous sulfate가 12.5%로 가장 높았고 ferrous lactate는 8.1%, ferric citrate는 6.5% 흡수되었다. 철분 100ppm수준에서는 흡수율이 낮아져 ferrous sulfate는 25ppm 시료보다 절반이하 수준이었다. Ferric citrate는 차이가 거의 없었으며 ferrous lactate는 70%수준이었다. 이상의 결과에서 철분강화우유에 사용하기 적합한 철분염은 ferrous lactate, ferric citrate였는데 특히 ferrous lactate는 제품의 이화학적 품질, 생이용성 측면 모두에서 가장 좋은 것으로 나타났다.

• Korean journal of applied entomology
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• v.32 no.2
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• pp.123-128
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• 1993

The comparative toxicities of selected acaricides against the twospotted spider mite, Tetranychus urticae, were investigated. The ovicidal and adulticidal activities of selected acaricides were examined under different developmental stages. Fenpyroximate showed high activity throughout all developmental stages of mites. The oviposition inhibition effect of fenpyroximate was more highly effective than that of cyhexatin. At 100 ppm concentration, the effect of fenpyroximate on the residual oviposition inhibition was persistant during 25 days with 85% level, while the effect of cyhexatin gradually decreased, and then decreased to 40% at 25 days after treatment. Fenpyroximate at 100 ppm showed 100% knockdown activity within 3 hour while cyhexatin showed only 91% knockdown activity within 24 hours after treatment. Most of selected acaricides had no systemic activity, but metasystox at 800 ppm had 100% of the systemic activity at 24 hours after treatment. For the influence of temperature on the activity, fenpyroximate showed stable activity and no temperature-dependent in comparison with other selected adaricides.

• Journal of the Korean School Mathematics Society
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• v.19 no.4
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• pp.441-457
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• 2016

The purpose of this study is to analyze Korean students' mathematics achievement characteristics and draw implications for better math education in schools through comparing the results of three east Asian top level countries, Korea, Singapore, and Japan in PISA 2012 results. As a results, the rate of correct answers of Korea students was relatively low compared with those of Singapore, but relatively higher than Japan. From the results of effect size, similar results from t-test was discovered. As shown in analysis according to sub-elements in math assessment framework, the Korean students had low effect size in every sub-elements than Singapore. and they had high effect size at most of sub-elements than Japan, except "personal" context. In top performing level(above level 5), the Korean students had high effect size at "quantities" in mathematical contents, and "employ" in mathematical processes compared with Singapore. And they had row effect size at 6 sub-elements compared with Japan.

• Korean Journal of Construction Engineering and Management
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• v.12 no.3
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• pp.112-120
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• 2011

Since early 2000s, the use of construction management(CM) in the public and private building sectors has rapidly grown in Korea. In addition, the use of CM services during pre-construction stages has been increasingly recognized as a critical factor to succeed in construction projects. Understanding clients' needs of pre-construction CM services is important for CM firms to strategically prepare and cope with market needs. The objective of the paper is to investigate and compare the usage level of CM services in public and private building projects during pre-construction stages, and to identify key characteristics and implications for CM firms. The paper identified that although there are some differences in CM service needs between public and private sectors, time management and cost management commonly showed the higher usage level.

• Journal of Korean Society of Transportation
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• v.24 no.4 s.90
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• pp.81-91
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• 2006

As public transportation is significant mode to make sustainable urban transportation system, the importance of Public transportation has grown gradually. Nowadays the central and local government make various policies which help to raise modal sp)it of public transportation. To understand previous public transportation Policies and make more efficient policies, it is important to know the current level of public transportation exactly. The main aim of this study is assess the competitiveness of public transportation in world major cities We select assessment indexes and have grouping use factor analysis. Then we have 8 clusters of cities by cluster analysis, Also, we analyze the relationship between public transportation characteristics and modal split.

• Journal of Veterinary Clinics
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• v.15 no.2
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• pp.370-377
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• 1998

본 연구는 황색포도상구균의 병원성 인자인 alpha-toxin, casular polysaccharides (CPS)와 fibronectin-binding protein (FnBP)을 이용해 실험동물인 토끼에서의 항체가 형성 능과 공격접종 후 방어능에 관한 연구를 위하여 수행되었으며 향후 젖소 유방염 아단위 항원 을 이용한 백신개발 가능성을 탐색하고자 수행되어졌다. 황색포도상구균의 alpha-toxin, capsu18r polysaccharides (CPS)91 fibronectin-binding protein (FnBP) 항원을 이통재 효소면 역측정법을 통한 혈중 IgG 항체가수준을 측정하였으며 alpha-toxin, capsular polysaccharides (CPS)와 fibronectin-binding protein (FnBP)으로 면역시킨 토끼에서 대조군의 토끼보다 혈 중 항체가 수준이 1차 면역 이후 유의성 있게 높았다 (p<0.05). 백신에 사용된 alpha-toxin, capsular polysaccharides (CPS)와 fibronectin-binding protein (FnBP) 항원중 capsular polysaccharides (CPS)가 다른 alpha toxin과 fibronectin-binding protein (FnBP)의 혈중항 체가 수준과 비교하여 볼 때 비교적 낮은 수준이었다. 세균을 혈중으로 공격접종한 후 대조군 과 백신접종군의 혈중내 세균제거율에 있어 대조군에 비해 백신접종군에서 유의성 있게 낮은 균수를 보였다 (p<0.05). 또한 장기내 균수측정실험결과 대조군의 장기보다 백신접종군에서 유의성 있게 세균수가 낮게 출현하였다 (p<0.05). 결론적으로 본 연구결과 황색포도상구균의 3가지 항훤 alpha-toxin, capsular polysaccharide와 재조합 fibronectin binding protein을 이 퐁한 실험동물에서 안단위 유방염 백신은 방어능이 있다고 생각된다.

• Journal of Digital Convergence
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• v.14 no.11
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• pp.619-626
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• 2016

The purpose of this study was to investigate effects of physical activity and sedentary life in metabolically healthy obesity(MHO) and metabolically unhealthy obesity(MUO). A total of 1585 middle-aged obesity men and women participated in this study. The subjects were divided to MHO(n=840) and MUO(n=745) by metabolic syndrome markers(National Cholesterol Education Program-Adult Treatment Panel III). We analyzed measurement data using t-test. As results, physical activity and exercise participant between group had not significant difference in men subjects. But, in women subjects, total physical activity volume and muscle strength exercise participant between group had a significant difference. In conclusion, we suggest that physical activity and exercise participant are important factors affecting health status in the same level of obesity women.

• Journal of the Korean Society for information Management
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• v.32 no.4
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• pp.167-203
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• 2015

This study tends to apprehend how much public library contributes to a role of upbuilder of digital integrated local society through a survey. For this, I performed the survey on 935 organization of public library in the whole country registered in national library statistical system. As a result, firstly, it's apprehended that equipment infra, Internet infra, etc like computer, laptop, scanner, tablet PC, etc are in relatively high level. Secondly, service or resource like electronic book, digital and virtual reference service, library service mobile App, etc that users can use are in relatively high level but software supporting cooperation and group task, fusibility of participating space, etc are shown very low level. Thirdly, the rate of literacy training relating to technology were only 22.4%, education subject focused on resource searching subject and somewhat future-oriented technical education like directions of video conference technique, cloud computing application education, etc wasn't conducted. Finally, we should consider expansion of providing technology and equipment and provision of future-oriented service and education according to a flow of the time that needs to seek change in various roles of library as enjoying culture space or creative space.