치과 진료실내의 세균오염도와 영향인자에 관한 연구

윤경옥,박희진,손부순,Yun, Kyoung-Ok,Park, Hee-Jin,Son, Bu-Soon 한국환경보건학회 2014 한국환경보건학회지 Vol.40 No.6

Objectives: The purpose of this study was to identify the stains causing infections in dental clinics by analyzing bacterial contamination, as well as to suggest improvements for infection control in dental clinics. Methods: In this study, a questionnaire survey of 47 dental hospitals and clinics located in Gyeonggi-do and Incheon, South Korea was administered from June 2013 to September 2013 and used to investigate the practice rates of infection control by dental hygienists and to analyze the bacterial contamination levels in dental offices. Results: In the studied institutions, the bacterial contamination levels of water lines were $20.9{\times}10^3$ colony forming units (CFU)/mL for three-way syringes, $12.7{\times}10^3CFU/mL$ for high-speed handpieces and $9.8{\times}10^3CFU/mL$ for gargling water. The bacterial contamination levels of surfaces were $44.9{\times}10^3CFU/mL$ in cuspidors, higher than in unit chairs ($2.9{\times}10^3CFU/mL$) and light handles ($6.7{\times}10^3CFU/mL$). The mean bacterial cell count of water lines and surfaces was relatively high in all establishments founded 11 years ago or more, and the mean bacterial cell count of waterline handpieces was $6.27{\times}10^3CFU/mL$ in establishments founded between one and five years ago, $11.16{\times}10^3CFU/mL$ six to ten years ago and $20.04{\times}10^3CFU/mL$ 11 years ago or more, which suggests that earlier foundation is associated with higher bacterial contamination levels with a statistical difference (p<0.01). Similarly, the mean bacterial cell count of cuspidors using water from water lines was also $70.16{\times}10^3CFU/mL$ in at least 11-year-old establishments, statistically significantly higher among in one- to five-year-old ($4.61{\times}10^3CFU/mL$) and six- to ten-year-old clinics ($47.89{\times}10^3CFU/mL$) (p<0.05). Conclusion: This study may be utilized to improve the bacterial contamination levels in dental offices by controlling the characteristics and environmental factors of dental offices that affect the microbial contamination of waterlines and surfaces in such institutions.

A Study on KakaoTalk-based Writing Tasks Using Smartphones

윤경옥 충남대학교 인문과학연구소 2018 인문학연구 Vol.57 No.4

The present study aims to investigate EFL students’ overall writing tendency and their perception of KakaoTalk-based writing tasks using smartphones. With the written products, which the participants had completed via KakaoTalk during 17 weeks, the differences between the early and the latter written products were analyzed in terms of sentence complexity, accuracy, and error types. This study also examined their thoughts of the KakaoTalk-based writing activities and the benefits as a learning tool in the EFL classroom. The results showed that KakaoTalk-based writing tasks had a positive effect on decreasing the number of writing errors, specifically in error types: VT, SS, WC, WF, and PU, as well as enhancing their writing complexity. Additionally, it was notable that synchronicity, high accessibility, and comfortable interactions were cited as major advantages, resulting in positive potential of utilizing a smartphone-mediated messaging application: KakaoTalk as an alternative writing instructional platform in EFL contexts.

디렉토리 기술이 도입된 세대별 지능망 표준화동향분석

윤경옥,강태규,Yun, K.O.,Kang, T.G. 한국전자통신연구원 1995 전자통신동향분석 Vol.10 No.2

본 고에서는 디렉토리 기술이 도입된 세대별 지능망의 표준화 동향을 분석한다. 국제전기통신연합 전기통신표준화 분야(ITU-T)의 지능망 관련 표준화를 제 1세대, 제 1세대 보강, 제 2세대, 제 3세대, 최종적인 지능망 형태 등으로 구분하여 비교분석 하였으며, 지능망이 도입되면서 제공되는 종합 개인 통신 (UPT)을 설명하고, 종합 개인 통신을 위해 디렉토리 기술이 필요한 이유와 디렉토리의 표준화 동향을 분석하고, 지능망과 종합 개인 통신, 디렉토리 등과의 관계를 분석, 설명하였다.

생태그림책을 활용한 과학 활동이 유아의 과학적 태도와 과학적 문제해결력에 미치는 영향

윤경옥,조성희 한국영유아교원교육학회 2013 유아교육학논집 Vol.17 No.5

본 연구는 생태그림책의 문맥과 연결된 과학 활동이 유아의 과학적 태도와 과학적 문제해결력에 미치는 영향을 알아보는데 목적이 있다. 연구대상은 만 5세 유아로 실험집단 26명, 비교집단 21명의 총 47명이었으며, 실험처치는 8주간에 걸쳐 이루어졌다. 이 기간 중 실험집단에게는 생태그림책 내용에 대한 이야기 나누기 활동을 연계해 생태그림책의 문맥에서 이끌어 낸 과학 활동을 경험하도록 하였고, 비교집단에게는 생태그림책과의 연계 없이 실험집단과 동일한 과학 활동만 경험하도록 하였다. 이 두 집단을 대상으로 과학적 태도와 과학적 문제해결력의 집단 간 차이를 검증해 본 결과, 생태그림책의 문맥과 연결된 과학 활동은 그렇지 않은 과학 활동에 비해 유아의 과학적 태도와 과학적 문제해결력 향상에 더 도움이 되는 것으로 나타났다. The purpose of this study is to identify the effects of science activities linked with the context of ecological picture books upon children’s scientific attitude and their scientific problem solving ability. The subjects of this study were 47 children aged 5; 26 children for the experimental group and 21 children for the control group. The experiment treatment was conducted for 8 weeks. During the period, the experimental group experienced science activities that were derived from the context of ecological picture books linked with story sharing activities as to the content of ecological picture books, and the control group experienced the same science activities without being linked with ecological picture books as the experimental group had. On the subjects of these two groups, from the results of verifying the difference of children’s scientific attitude and scientific problem solving ability between the groups, science activities linked with the context of ecological picture books was found to be more helpful for improving children’s scientific attitude and scientific problem solving ability as compared with those activities without being linked with the context of ecological picture books.

치과진료실 내 수관 세균 오염에 관한 연구

윤경옥,김혜영 한국치위생감염관리학회 2019 한국임상치위생학회지 Vol.7 No.1

Objectives: We aimed to study Infection control by analyzing the bacterial contamination levels in dental offices. The results of this study are summarized as follows. Methods: This study used samples of waterline at three sites (hand piece, 3-way syringe, cuspidor) of 19 dental hospitals and 28 dental clinics located in Gyeonggi-do, Incheon, and Chungcheongnam-do in South Korea. Results: The result showed dental institutions frequently used water purifiers a lot, and they had low levels of draining water off dental waterlines, disinfecting dental waterlines, and doing conducting microbial tests of dental waterlines. The bacterial contamination levels of waterlines in dental offices were the highest in the 3-way syringe. As a result, the number of bacteria increased as the number of patients was more than 100, and as the established year of hospitals was longer. Also, it was higher at the dental hospitals than at the dental clinics. In addition, there was a significant difference in the amount of bacteria caused by using water purifiers at waterlines, especially when using a hand piece. Conclusions: This study could be used as a basic data to prevent bacterial contamination of the dental offices by the general characteristics of dental offices influence waterlines contamination of waterline. Ultimately, it would help recognize the importance of hospital infection control.

우리나라 신발에 對한 小考

尹京玉,徐承坤 梨花女子大學校 文理大學 家政學部 1963 家政 Vol.- No.11

사회적기업의 사회적성과 분석 및 정부지원금의개선방안에 관한 연구

윤경옥,손희정,오웅락 한국세무학회 2018 세무와 회계저널 Vol.19 No.2

This study has proved the relationship between social enterprise’s economic performance and social performance, and analyzed if there is a difference between relationship of economic performance and social performance depending on differences in firm size and authentication type. Additionally, we researched about what kinds of effects do social enterprise’s management performance have on government funds. To prove this, the study period is from 2007 to 2015, and analyzed 226 companies/yearly social enterprises as a sample. The major analysis results of the study are;firstly, we analyzed effects that social enterprise’s economic performance have on social performance. As a result of this, it represented that self employment rate for vulnerable social groups is low as debt ratio and the rate of government funds are high, but it was analyzed that self employment rate for vulnerable social groups is high as asset turnover ratio is high. On the other hand, it represented that the economic performance don’t have significant effect on employment rate for vulnerable social groups. Secondly, as a result of analysis of influence that difference of firm size and authentication type have on the economic performance’s relevance of social performance, it represented that both of them don’t have a big influence. Finally, as a result of analysis about the influence of social enterprise’s management performance on the government funds, it represented that self employment rate for vulnerable social groups gets low when debt ratio gets high, and self employment rate for vulnerable social groups gets high when sales growth rate and asset turnover ratio are high. The study has a meaning on showing the effects that social enterprise’s economic performance have on social performance and the influences which social enterprise’s management have on government funds by using the financial statements of social enterprises which are announced on Korea Social Enterprise Promotion Agency. 본 연구는 사회적기업의 경제적성과와 사회적성과의 관련성을 검증하였고, 기업규모와 인증유형의 차이에 따라 이러한 경제적성과와 사회적성과의 관련성에 차이가 발생하는지를 분석하였다. 또한 사회적기업의 경영성과가 정부지원금에 어떤 영향을 미치는지도 연구하였다. 이를 검증하기 위해서, 본 연구는 2007년부터 2015년까지를 연구기간으로 하고 226개 기업/연도의 사회적기업을 표본으로 사용하여 분석하였다. 본 연구의 주요 분석결과는 다음과 같다. 첫째, 사회적기업의 경제적성과가 사회적성과에 미치는영향력을 분석하였다. 그 결과 부채비율과 정부지원금비율이 높을수록 취약계층자체고용비율은 낮은 것으로 나타났으나, 총자산회전율은 높을수록 취약계층자체고용비율이 높은 것으로 분석되었다. 반면에 경제적성과는 취약계층고용비율에 유의한 영향을 미치지 못하는 것으로 나타났다. 둘째, 기업규모와 인증유형의 차이가 경제적성과의 사회적성과 관련성에 미치는 영향을 분석한 결과, 두 가지 모두 큰 영향을 주지 않는 것으로 나타났다. 셋째, 사회적기업의 경영성과가 정부지원금에미치는 영향력을 분석한 결과, 부채비율이 높을수록 취약계층자체고용비율은 낮아지고 매출액증가율과 총자산회전율이 높을수록 취약계층자체고용비율은 높은 것으로 나타났다. 본 연구는 한국사회적기업진흥원에 공시된 사회적기업들의 실제 재무제표를 이용하여, 사회적기업의 경제적성과가 사회적성과에 미치는 영향력과 사회적기업의 경영성과가 정부지원금에 미치는영향력을 보여준 연구라는데 의의가 있다.

치과 의료기관 및 치과위생사의 감염관리 실천도와 진료실내의 표면 세균오염도에 대한 연구

윤경옥,배성숙,최영숙 한국콘텐츠학회 2019 한국콘텐츠학회논문지 Vol.19 No.5

The purpose of this study was to investigate the status of infection control in dental office and the degree of infection control practice of dental hygienists. A self-reported questionnaire was answered by 193 dental hygienists working in dental hospitals or dental clinics in Gyeonggi and Incheon areas. The number of bacteria was measured sample of surface dental unit chair shoulder backrests and light handles from 19 dental hospitals and 28 dental clinics. It was responded that impression or occlusion bodies were routinely disinfected in 52.6% of the dental hospitals and dental prosthesis were routinely disinfected in 46.4% in dental clinics. The dental hospital and clinics disinfect the surface each 26.3%, 25% after the patient treatment. The dental hospital and clinic were detected bacteria 5.02*10^3 CFU/mL, 1*10^4 CFU/mL, from dental unit chair backrest, respectively and 8.32*10^3 CFU/mL, 4.26*10^4 CFU/mL from light handles, respectively. At the conclusion of this investigation, it can be kept from infection source in dental office is to make the right selection and use of the personal protective equipments and to improve the practice level by regular and active education. The same infection control practice should be done by institutionalizing and mandating infection control practice. 본 연구에서는 치과 의료기관에서의 감염관리 실태와 치과위생사의 감염관리 실천도를 조사하여 효율적인 감염관리 실천 및 방안을 마련하고자 조사하였다. 경기, 인천지역의 치과병원19곳과 치과의원 28곳의 치과위생사 193명을 조사한 결과, 기공물 소독관리는 인상체와 교합체를 병원급에서만 52.6%, 치과 보철물을 소독하는 경우에는 의원급에서만 46.4%가 소독하는 것으로 나타났다. 수관에서 환자 진료 후나 아침에 진료를 시작하기 전에 병원급 26.3%, 의원급 25%가 물을 빼지 않는 것으로 나타났다. 각 병원과 의원의 유니트 체어의 어깨 등받이의 경우 병원급은 5.02*10^3 CFU/mL, 의원급은 1*10^4 CFU/mL의 세균이 검출 되었다. 라이트 손잡이는 병원급은 8.32*10^3 CFU/mL, 의원급은 4.26*10^4 CFU/mL의 세균이 검출되었다. 다양한 박테리아와 바이러스에 노출되기 쉬운 치과 의료기관에서 스스로를 감염원으로부터 지킬 수 있는 방법은 개인방호용품의 올바른 선택과 사용, 무엇보다도 정기적이고 적극적인 교육이 필요하며 통일된 감염방지실천이 필요하다.

Effects of Prompts on EFL Students’ English Writing Performance Based on Their Writing Proficiency

윤경옥 한국영어교과교육학회 2015 영어교과교육 Vol.14 No.4

The purpose of this study is to examine the effects of writing prompts on EFL students’ English writing performance in accordance with their writing proficiency. To fulfill this purpose, first, 238 college students were divided into three levels depending upon their pre-writing test results (high, mid, and low). They were also asked to write one essay using two different prompts (bare and prose) each and take the pre- and post-writing tests. Finally, their writing products were rated and analyzed using both the holistic and the analytic scoring rubric. The results are as follows: first, it was found that there was a significant difference in the students’ writing scores of the pre- and post-writing tests, which implies that consecutive writing practice had a positive effect on the development of the students’ writing proficiency without any formal instruction on writing; second, the students got higher scores when using the prose prompt than the bare one, which suggests that the prose prompt sheds more light on the students’ writing performance; finally, they showed different writing performance depending upon their writing proficiency. Based upon these results, the following suggestions can be made: first, more opportunities to carry out writing tasks should be provided to EFL learners, especially to learners in the low level; and second, taking their English writing proficiency into account, a wider selection of prompts need to be provided to help develop their writing abilities.

VOD 서비스를 위한 비디오 펌프 시스템의 소프트웨어 처리 구조 ( Software Architecture of Video-on-Demand Service )

윤경옥,권선준 한국통신학회 1997 통신소프트웨어 학술대회 Vol.1 No.1