치과위생사의 직업 수명에 관한 연구 : 치과위생사와 치위생(학)과 학생 대상으로

허남숙,이유희,Heo, Nam-Suk,Lee, Yu-Hee 한국치위생학회 2020 한국치위생학회지 Vol.20 No.2

Objectives: Although dental hygienists have a high employment rate as professional workers, turnover and retirement rates are very high. This study analyzed the factors related to work life of dental hygienists to prepare an alternative for life extension. Methods: From August 1 to December 31, 2019, 224 dental hygienists and 446 dental hygiene students were examined. Results: The expected working years for dental hygienists were 10-14 years (25.4%) and over 31 years (22.4%) for dental hygiene students. The recognized working years for dental hygienists were 10-14 years (22.4%) and 20-24 years (26.0%) for dental hygiene students. Work values of dental hygienists and dental hygiene students averaged 3.85 and 3.86, respectively. Furthermore, the average motive for selecting a major in dental hygienists was 3.08 points and in dental hygiene students, 3.24 points. The average career identity of dental hygienists and dental hygiene students were 2.82 and 2.91 points, respectively. Conclusions: The perception difference between dental hygienists and dental hygiene students was compared, and the factors that could play a positive role in prolonging life were identified. Based on this study, further systematic comparative studies and preparation of alternatives for life extension are required.

국가시험을 앞둔 치위생과 학생들의 성격유형에 따른 스트레스 요인 및 대처방안

허남숙 ( Nam Suk Heo ),박정희 ( Jeong Hee Park ),김은희 ( Eun Hee Kim ) 한국치위생학회 2009 한국치위생학회지 Vol.9 No.2

Objectives: This study aims to investigate the stress factors of students in Dental Hygiene Department who will soon take the national examination, corresponding countermeasures and relationship of internal and external personality. On the basis of the results from investigation, this study will identify the methods to effectively cope with stress and to take the national examination with more positive thinking for the students and faculty members in Dental Hygiene Department, who have to pass the difficult test, the national examination. Methods: The structured questionnaires were given to junior students in Dental Hygiene Department in three colleges, to identify the stress factors, methods to deal with stress and A/B personality types. Results: For the stress factor by field, the M college showed significantly higher stress about curriculum and assignment than the C college. In the stress factor analysis by item, the lack of information on national examination in the test area, all items in learning environment, a quantity of assignment that doesn`t help the preparation of national examination in the assignment area, and lack of information on employment in job area demonstrated the significant difference(p<0.05). For the methods of subjects to deal with stress, several subcategories of long-term and short-term adaptation had significance. In case of the methods to deal with stress by personality type, B type in the short-term adaptation method in M college and A type in the long-term adaptation method in C college were significantly higher(p<0.05). As for the correlation between the population sociological features and stress factors by personality type., health status had the high correlation with test in the test area. In other areas, the travel hours to school showed the significant correlation. The higher the records were, the longer the travel hours were and the better the health status was, the higher the long-term adaptation method scores were. Moreover, the personality of A type showed the higher scores in the long-term adaptation method than that of B type. The health status and personality type showed the significant correlation(p<0.05). Conclusion: In conclusion, it is required to prevent any situations b identify the personality type and stress reasons of the students in Dental Hygiene Department who will take the national examination soon. The additional requirement is the continuing interest and counseling of faculty members to help students to cope with stress with positive attitude.

치위생과 학생들의 임상실습 스트레스와 만족도, 자아개념간의 관련성 연구

허남숙 ( Nam-suk Heo ),이유희 ( Yu-hee Lee ) 한국치위생학회 2018 한국치위생학회지 Vol.18 No.3

Objectives: The purpose of this study was to examine the current status of the relationship between clinical practice stress, satisfaction and self-concept of dental hygiene department students in order to effectively implement the clinical practice, which is a necessary course for professional dental hygienists. Methods: The subjects in this study were 299 dental hygiene department students who participated in clinical practice. The survey was conducted from November 1, 2017 to December 31, using self-filling questionnaire (INJE 2017-08-004-002). Statistical analysis was conducted to identify the clinical practice characteristics, clinical practice stress, satisfaction and self-concept and the results according to clinical practice characteristics were compared through t-test and ANOVA. The regression analysis was conducted to identify the effects on self concept. Results: Clinical practice stress, satisfaction and self concept were identified to be significant(p<0.01). Multiple regression analysis results of the factors affecting self concept of study subjects showed that self concept was statistically significant in grade, education programs and satisfaction. Conclusions: Self-concept, clinical practice stress and satisfaction were significantly correlated. In order to raise the quality of clinical practice and to become a professional dental hygienist, it is necessary to continue research on the measures to improve the stress management and satisfaction in clinical practice for establishing self-concept.

오미자 추출물의 구강병원균에 대한 항균효과 및 구취억제 효과

허남숙(Nam Suk Heo),최혜정(Hye Jung Choi),황수미(Su Mi Hwang),최영환(Young Whan Choi),이영근(Young Geun Lee),주우홍(Woo Hong Joo) 한국생명과학회 2013 생명과학회지 Vol.23 No.3

본 연구는 오미자 추출물의 구강병원균에 대한 항균활성과 항구취 효과를 조사하기 위해 수행되었다. 오미자 MeOH 추출물이 열수추출물에 비해 구강병원균에 대한 항균활성이 더 뛰어난 것으로 나타났다. 특히 MeOH 추출물의 EA 분획물은 Streptococcus mutans, S. sanguinis, S. salivaris subsp. thermophols 그리고 Porphyromons gingivalis에 대한 활성이 뛰어난 것으로 조사되었다. 오미자 2% MeOH 추출물의 항구취 효과를 oral chroma를 이용한 실제실험에서 측정한 결과, 황화수소, 메틸머캅탄 그리고 황화디메틸을 각각 91.15, 78.72 그리고 71.58% 감소시키는 것으로 측정되었다. 본 연구 결과, 오미자 추출물은 몇몇의 구강병원균에 대한 항균활성을 보였고 휘발성 화합물을 억제하는 효과가 뛰어난 것으로 나타났다. 그러므로 오미자의 추출물은 항균용 합성약품과 구강위생용품을 대체할 수 있는 소재로 판단된다. This study was conducted to investigate the antimicrobial and anti-oral malodor effect of Schizandra chinensis extracts against oral pathogens. S. chinensis methanol (MeOH) extract showed better antimicrobial activities against oral pathogens than the S. chinensis hot water extract did. In particular, ethylacetate (EA) fraction of S. chinensis MeOH extract had the greatest effects against Streptococcus mutans, S. sanguinis, S. salivaris subsp. thermophols and Porphyromons gingivalis. The anti-malodor effect of S. chinensis against the generation of volatile sulfur compounds (VSC), such as hydrogen sulfide, methyl mercaptan, and dimethyl sulfide, was estimated using oral chroma in a practical study. The results showed that 2% MeOH extract of S. chinensis against the production of hydrogen sulfide, methyl mercaptan, and dimethyl sulfide had inhibitions of 91.15, 78.72 and 71.58%, respectively. These results showed that Schizandra chinensis extract had antimicrobial activity against several oral pathogens and exhibited significant effects on the inhibition of VSCs. Thus, Schizandra chinensis extract could be an alternative to available synthetic chemicals and oral hygiene products.

ART를 이용한 자동차 번호판 자동 인식 시스템

허남숙(Nam-Suk Heo),이순희(Soon-Hee Lee),김광백(Kwang-Baek Kim) 한국멀티미디어학회 1999 한국멀티미디어학회 학술발표논문집 Vol.1999 No.1

개선된 Fuzzy ART를 이용한 자동차 번호판 인식에 관한 연구

허남숙(Nam-Suk Heo),임은경(Eun-Kyoung Lim),김광백(Kwang-Baek Kim) 한국멀티미디어학회 2000 한국멀티미디어학회 학술발표논문집 Vol.2000 No.1

Antimicrobial and Anti-halitosis Effects of Alnus firma Extracts

Hye Jung Choi(최혜정),Nam Suk Heo(허남숙),Young Whan Choi(최영환),Young Geun Lee(이영근),Young-Kee Jeong(정영기),Woo Hong Joo(주우홍) 한국생명과학회 2012 생명과학회지 Vol.22 No.8

사방오리나무의 분획물과 분리화합물인 gallic acid의 항우식 작용과 항구취 활성을 조사하기 위해 구강병원균에 대한 항균활성, 부착능 그리고 산 생성을 조사하였다. 그리고 휘발성 황화합물의 측정은 oral chroma를 이용하여 구취억제 효과를 측정하였다. DCM 분획물은 넓은 항균스펙트럼을 가졌으며, EA 분획물은 Streptococcus mutans와 Porphyromons gingivalis에 대해 상대적으로 높은 항균활성을 가진 것으로 나타났다. 게다가 GA와 DCM 분획물은 각각 S. mutans와 S. salivarius에 대해 산 생성과 부착을 효과적으로 억제하였다. 사방오리나무의 2% MeOH 추출물은 구취유발 화합물인 황화수소, 메틸머캅탄, 황화디메틸을 억제하는 효과가 뛰어났으며(p<0.05), 2% GA 또한 황화수소를 억제시키는 효과가 있음이 확인되었다(p<0.05). 본 연구의 결과, 사방오리나무의 활성분획물과 GA는 항균효능, 산생성 억제능, 부착 억제능 및 구취 억제효능을 가짐으로써 구강병원균에 대한 천연항균제제로써의 사용 가능성이 충분히 있는 것으로 판단된다. To investigate the antimicrobial and anti-halitosis effects of Alnus firma extracts and gallic acid (GA) isolated from A. firma, we measured their antimicrobial activities against oral pathogens and their inhibitory effects on the cell adhesiveness and acid production of oral pathogens. In addition, the levels of volatile sulfur compounds were determined by using oral chroma. The dichloromethane (DCM) fraction has broad antimicrobial activity, and the ethylacetate (EA) fraction showed a relatively high level of antimicrobial activity against Streptococcus mutans and Porphyromons gingivalis. Especially, the GA and DCM fractions had significant inhibitory effects on the attachment and acid production of S. mutans and Streptococcus salivarius, respectively. The 2% MeOH extract of A. firma showed a significant inhibitory effect on the production of volatile oral compounds, such as hydrogen sulfide, methyl mercaptan, and dimethyl sulfide, which can cause bad breath and halitosis. Two percent GA also had a significant inhibitory effect on the production of hydrogen sulfide. Our study showed that the active fractions and GA of A. firma could be suitable resources for development as a natural antibiotic agent for the treatment of infectious oral diseases.

치과위생사의 감염관리 실태와 관련요인

박정희 ( Jeong Hee Park ),허남숙 ( Nam Suk Heo ),송혜정 ( Hye Jeong Song ) 한국치위생학회 2011 한국치위생학회지 Vol.11 No.6

Objectives: This study is designed to identify the need for an efficient infection control plan in the curriculum of Dept. of Dental Hygiene and encourage dental hygienists to be more attentive to infection control by analyzing their personal protective measures, hand-washing frequency and other factors relating to infection control. Methods: A survey was conducted of 471 dental hygienists in general hospitals, dental clinics and dental hospitals in City of Busan and Gyeongsangnam-do from December 20, 2009 to February 21, 2010. Results: 1. Among those who worked for more than 11 years, personal protection (3.79) and hand-washing frequency (3.90) factors were rated high (p<0.05). 2. When surveyedby workplace, personal protection was high in general hospitals (3.75) while hand-washing frequency was high in dental clinics (3.74). 3. Among those who received infection control education more than three times, personal protection (4.07) and hand-washing frequency (3.80) were high (p<0.05). 4. Personal protection-related factors were general hospital workers, necessity of infection control education and awareness on infectious disease (p<0.05), while factors associated with handwashing frequency were number of patients per day, whether or not infection control-related class is given at school, necessity of infection control education and awareness on infectious disease (p<0.05). Conclusions: To enhance awareness of infection control, it may be necessary to addan infection control-related class to the school curriculum and provide the necessity of conducting continuous and systematic infection control education through newly entering staff training and education of dental practitioners. (J Korean Soc Dent Hygiene 2011; 11(6):993-1003)

명암도 변화와 Canny 에지를 이용한 컨테이너 영상의 문자인식에 관한 연구

남미영(Mi-Young Nam),임은경(Eun-Kyoung Lim),허남숙(Nam-suk Heo),김광백(Kwang-Baek Kim) 한국멀티미디어학회 2001 한국멀티미디어학회 학술발표논문집 Vol.2001 No.1

Pseudomonas savastanoi BCNU 106의 유기용매 내성 lipase

박호일,허남숙,주우홍 Institute of Genetic Engineering Changwon National 1998 Gene and Protein Vol.2 No.1

An Orgnic-solvents-stable lipase was produced in cultivation of Pseudomonas savastanoi BCNU 106. The optimium culture conditions for maximum lipase production were investigated. The optimum pH and the optimum temperature were pH 7 and 30℃. The enzyme was stable toward some organic solvents, propylbenzene. o-xylene. p-xylene, toluene, and nonane at a concentrations of 30%.