딥러닝을 활용한 적조 판별

조민정(Min Jeong Cho),백상수(Sang-Soo Baek) 대한환경공학회 2022 대한환경공학회 학술발표논문집 Vol.2022 No.11

간호대학생의 죽음불안과 품위 있는 죽음에 대한 태도가 연명치료중단 태도에 미치는 영향

조민정(Jo, Min Jeong),김성연(Kim, Seong Yeon),김에스더(Kim, Esther),염지수(Yeom, Ji Su),이가람(Lee, Ga Ram),정소영(Jeong, So Young),조현경(Cho, Hyun Kyung),최진권(Choi, Jin Kwon),한예지(Han, Ye Ji),이종은(Lee, Jongeun) 전남대학교 간호과학연구소 2020 Nursing and Health Issues(NHI) Vol.25 No.1

Purpose: This study aimed to examine the level of death anxiety, attitudes toward dignified death and withdrawal of lifesustaining treatment (WLST), and to analyze factors that influence these perspectives on WLST among nursing students. Methods: 141 nursing students were selected from five universities in C city as study participants. Data were collected from May to July 2019 and analyzed using unpaired t-test, one-way ANOVA, Pearson s correlation coefficient and stepwise multiple regression analysis with IBM SPSS Statistics 23.0 (IBM Corp., Armonk, NY). Results: Nursing students who experienced WLST among family, friends and acquaintances had significantly positive attitude toward WLST than students who did not (t=2.62, p =.010). Attitude toward dignified death was positively correlated with attitude toward WLST (r=.26, p =.002) and death anxiety (r=.18, p =.038). Factors that influenced perspectives on WLST were attitude toward dignified death (=.26, p =.001) and experience of WLST (=.25, p =.002). The combined explanatory power of the two factors was 12% (F=7.08, p <.001). Conclusion: The right attitude towards withdrawal of life-sustaining treatment are essential ethical values for nursing students. These results suggest the inclusion of thanatology and enhanced ethical education on life and death in the nursing curriculum.

농촌 노인의 스트레스와 주관적 구강건조감의 관련성: 예비조사

조민정 ( Min-jeong Cho ),이은 ( Eun Lee ),염유식 ( Yoosik Youm ),김현창 ( Hyeon Chang Kim ),정은경 ( Eun-kyung Jung ),김진경 ( Jin-kyung Kim ),송근배 ( Keun-bae Song ),최연희 ( Youn-hee Choi ) 대한예방치과·구강보건학회 2017 大韓口腔保健學會誌 Vol.41 No.4

Objectives: Stress is a psychological reaction to stimuli such as anxiety or threat felt by a person either physically or mentally when placed in a difficult situation. Although a relationship between stress and dry mouth has been reported, it remains understudied. The purpose of this study was to investigate the association between stress and subjective dry mouth among the elderly living in a rural region. Methods: A total of 214 people aged ≥60 years living in a rural area were recruited with an informed consent for a cross-sectional analysis. Information about stress and subjective dry mouth was obtained by an interview survey with a constructed questionnaire. Data on other potential confounding factors (including oral factors) such as socio-demographic data, health-related behaviors, the number of remaining teeth, and subjective chewing ability were also gathered at the same time. Logistic regression models were used to analyze the relationship of stress and dry mouth using SPSS. Results: The Crude odds ratio (OR) of stress awareness affecting subjective dry mouth was 2.59 (95% confidence interval: 1.43-4.68). After adjusting for sex, education, income, smoking, and alcohol intake, the adjusted OR was 2.52 (95% confidence interval: 1.30-4.87) which was statistically significant. Conclusions: Elderly people who were stressed had an approximately 2-fold increase in experiencing subjective dry mouth when compared to their stress-free counterparts.

자외선 경화형 아크릴계 점착제의 단량체 및 올리고머 함량이 실크 스크린의 인쇄성 및 점착력에 미치는 영향

조민정(Min-Jeong Cho),강호종(Ho-Jong Kang),김동복(Dong-Bok Kim) 한국고분자학회 2017 폴리머 Vol.41 No.2

자외선 경화형 아크릴계 단량체의 함량을 조절하여 디스플레이 모듈 접합에 사용할 수 있는 점착제를 중합하고 점착 물성 및 실크스크린 인쇄성을 평가하였다. 2-ethylhexyl acrylate(2-EHA)와 아크릴 산(AA) 93:7 비율을 기본처방으로 하여 점착력을 갖도록 하였으며, 기본 처방에 스크린 탈착성 향상을 위한 butyl acrylate(BA), 점착력 향상을 위해 2-hydroxyethyl acrylate(2-HEA)와 tetrahydrofurfuryl acrylate(THFA)를 각각 추가하였다. 기본처방에서 BA의 함량이 7 phr 이상일 때 타래길이는 급격히 감소하고 점착력은 증가하였다. 2-HEA가 3 phr 이상에서 접촉각은 작아지고 폴리카보네이트(PC)에서의 점착력이 감소하는 경향을 보였다. 실크스크린 인쇄 시 직진성과 인쇄퍼짐을 개선하기 위해 THFA를 시럽에 첨가함에 따라 2-HEA가 14 phr의 경우, 점착제의 인쇄성이 저하되는 것으로 나타났다. 결과적으로 기본 처방에 BA 7 phr, 2-HEA 3 phr 및 THFA 7 phr를 첨가했을 때 인쇄성이 가장 양호하였다. For application to display module junction, silk screen printing based on UV-curable acrylic adhesive was studied. Monomers were based on 2-ethylhexyl acrylate (2-EHA) and acrylic acid (AA) 93:7, butyl acrylate (BA), 2-hydroxyethyl acrylate (2-HEA) and tetrahydrofurfuryl acrylate (THFA) added for screen detachability and adhesion, respectively. When the ratio of BA in monomers was added above 7 phr, adhesive was less smeared the screen and spreading length of adhesive decreased, and its adhesion increased. As 2-HEA was added above 3 phr, contact angle decreased and peel strength also decreased on polycarbonate (PC) substrate. When 2-HEA ratio was 14 phr with THFA was added for screen printability include linearity and printing width, the printability of adhesive showed to decrease. As a result, BA 7 phr, 2-HEA 3 phr, and THFA 7 phr with based monomers had good printability.

재활용 PET(polyethylene terephthalate)를 이용한 PBT(polybutylene terephthalate)올리고머 제조

조민정 ( Min Jeong Cho ),양정인 ( Jeong In Yang ),노승현 ( Seung Hyun Noh ),조홍제 ( Hong Jae Joe ),한명완 ( Myung Wan Han ) 한국화학공학회 2016 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.54 No.4

재활용 PET (Poly ethylene terephthalate)로부터 PBT (Poly butylene terephthalate)를 생산할 수 있는 새로운 방법을 모색하였다. 이 방법은 PET와 BD (1,4-butanediol)의 에스테르 교환반응을 통하여 BHBT (Bishydroxybutylterephthalate)올리고머를 생성하는 글리콜리시스 반응과 BHBT의 축합 중합 반응을 통하여 PBT 올리고머를 생성하는 축중합 반응으로 이루어져 있다. 이를 통해 단기 수명 주기 제품인 버려지는 PET 페자원을 장기 수명 주기 제품인 PBT로 변환시켜 더 가치 있고 바람직한 재활용을 하고자 하였다. 본 연구에서는 글리콜리시스와 축중합 촉매로 zinc acetate를 사용하였고, 글리콜리시스 반응에 대하여 회분식 반응기와 반 회분식 반응기를 적용하여 성능을 비교하였다. 이를 위하여 생성되는 에틸렌글리콜(EG)의 양을 정량하여 해중합도를 추정할 수 있는 EG 수율과 부산물인 THF 생성량을 성능 척도로 하였다. 반응 도중에 EG를 제거하는 반회분식 반응기의 성능이 회분식 반응기에 비하여 보다 우수한 것으로 나타났다. 또한 반회분식 반응기의 경우 최적의 반응조건은 BD/PET 비율 4, 반응온도 220 oC 이었으며, 최고 EG 수율은 91% 이었다. 또한 축 중합 반응이 진행됨에 따라 PBT 올리고머의 분자량이 증가하는 것을 보였다. A new route for PBT (Poly butylene terephthalate) production from recycled PET (Poly ethylene terephthalate) has been explored. The route consists of glycolysis of PET (Poly ethylene terephthalate) wastes using 1,4-butandiol into BHBT oligomers and polycondensation of the oligomers into PBT oligomer. This process uses post-consumer or post-industrial recycled PET and converts it into high-end PBT type engineering thermoplastic via a chemical recycling process. Zink acetate was used as a catalyst for both glycolysis and polycondensation. Two types of reactor for the glycolysis, batch and semi-batch reactor, were investigated and their performances were compared. Semi-batch reactor removes ethylene glycol (EG) and THF (tetrahydrofuran) during the reaction. Amounts of EG and THF generated during the glycolysis reaction were measured and used as criteria for the reactor performance. Performance of semibatch reactor was shown to be better than that of batch reactor. Optimum reaction condition for the semi-batch reactor was BD/PET ratio of 4, and reaction temperature of 220℃, giving high EG yield (max 91%) and low production of THF. In addition, it was confirmed that the molecular weight of PBT oligomer increases in accordance with the progress of the polycondensation reaction.

노인들의 의치 사용이 MMSE-K 점수에 미치는 영향

조민정 ( Min Jeong Cho ),박동옥 ( Dong Ok Park ),송근배 ( Keun Bae Song ) 한국치위생학회(구 한국치위생교육학회) 2016 한국치위생학회지 Vol.16 No.2

Objectives: The purpose of the study was to investigate the association between denture wearing and dementia using a Mini-Mental State Examination (MMSE-K) in the community dwelling elderly. Methods: The study subjects were 184 community dwelling elderly using Korean version of mini-mental state examination(MMSE-K). The variables included the general characteristics of the subjects, denture earing, number of mastication tooth, subjective mastication ability, and MMSE(dementia). Denture wearing was divided into two groups of the natural dentition including the fixed prosthesis and removable denture including the complete and/or partial denture. The data were analyzed by χ2 test, t-test, and binary logistic regression using SPSS version 22.0 program. Logistic regression was used to analyze the association of MMSE-K score and denture wearing, and 95% confidence interval was calculated. The subjective mastication ability was measured by Likert 5 points scale. Dementia was measured by MMSE-K. Results: There was a significant association between MMSE-K score and denture wearing. The odds ratio(OR) of denture waering was 6.01(95% CI: 2.824-12.784). After adjusting the age, gender, residence and education, OR was 5.53(95% CI: 2.364-12.935). Conclusions: This study showed a significant association between MMSE-K score and denture wearing in the Korean elderly.

대사증후군과 자기기입식 설문도구를 이용한 치주건강의 관련성

조민정 ( Min-jeong Cho ),심지선 ( Jee-seon Shim ),김현창 ( Hyeon-chang Kim ),송근배 ( Keun-bae Song ),최연희 ( Youn-hee Choi ) 대한구강보건학회 2016 大韓口腔保健學會誌 Vol.40 No.4

Objectives: Many recent studies have suggested that several systemic conditions, such as obesity, hypertension, hyperlipidemia, and diabetes, are related to periodontitis. The aim of this study was to investigate whether any particular metabolic syndrome component correlates with the periodontal status. Methods: This study analyzed data from 501 adults (age range, 30 to 64 years) who completed a general physical examination and an oral-health-related questionnaire between January 2014 and June 2014. Periodontitis was already used by the validity and reliability has been proven questionnaire. Multiple logistic regression analysis was used to assess the association between metabolic syndrome and the presence of chronic periodontitis. Results: Among the 501 participants, 81 (16.2%) had metabolic syndrome and 91 (18.2%) had chronic periodontitis. The prevalence of chronic periodontitis was 28.40% (23/81) and 16.19% (68/420) in the participants with and without metabolic syndrome, respectively. The association remained significant after adjusting for sex, age, education, income, occupation, and smoking status; the adjusted odds ratio was 2.03 (95% confidence interval, 1.11 to 3.71). Conclusions: A significant association exists between metabolic syndrome components and the periodontal status.

PRECEDE 모형을 이용한 구강건강의 영향요인에 대한 진단적 연구

조민정 ( Min Jeong Cho ) 한국치위생학회(구 한국치위생교육학회) 2013 한국치위생학회지 Vol.13 No.3

Objectives : This study aimed to improve school health program by investigation of several variables through educational diagnostic factors which influence the level of subjective oral health perception and DMFT of students on the basis of PRECEDE model. Methods : A total of 286 high school students in Busan completed the self-reported questionnaire from September 3 to 28 in 2012. Results : 1. Social and epidemiologic diagnosis suggested that the level of subjective oral health perception of male students was not better than that of female students and DMFT number of the male was more than that of the female(p<0.001)(p<0.001). 2. Oral health diagnosis indicated that once a day tooth brushing group showed lower level of oral health perception(p<0.001) and high DMFT number(p<0.001). 3. Predisposing factor of educational diagnosis implied that more than 4 times a day snack intake group and sweet diet and soda friendly group showed lower level of oral health perception and high DMFT number(p<0.001). 4. Tooth brushing of the reinforcing factors had the most important effect on the level of oral health perception and the number of dental caries. Daily snack intake was the most important effect on DMFT number. Conclusions : The informed consent from each family was the important factor in implementing PRECEDE model. School health program improved oral health care. Oral health program can correct the risk oral health behavior in children and adolescents.

의료소비자가 인식하는 치과의원의 감염관리와 외부자극을 통한 재이용의사에 관한 연구

조민정 ( Min Jeong Cho ) 한국치위생학회(구 한국치위생교육학회) 2011 한국치위생학회지 Vol.11 No.4

Objectives : This study focused on examine the relevance between behavioral changes of customers and re-use intention on medical institution after experiencing infection control through external stimuli. Methods : This research was based on self-standing survey conducted from August to November 2010, 214 people who randomly selected from five dental clinics located in Busan were analyzed as the final group. Collected data were performed using SPSS 12.0 for Window. Results : 1. 82.8% of those surveyed who experienced external stimulation have changed their behavior on hospital environments and facilities, and 80.5% of them answered the stimuli influenced their re-use intention on medical institution. 2. There were no significant differences between participants by general characteristics on ``The reason why medical team wear sanitary appliances``. In age group 30~39, 85.4% of participants chose the answer so the difference were statistically significant(p<.001). Result by household income showed significant difference in group over $1,000 to $2,000 as 82.7% response(p<.05). 3. 94.4% of participants chose ``Required`` for both surgical suits and gloves in research of ``The necessity level of personal sanitary appliances`` which medical teams wear for treatment and 79.4% agreed that medical teams need to change their medical gloves whenever treating each patients. 4. The survey revealed that the most important appliance in patient`s awareness were surgical gloves and protective goggles has chosen as the least important one. Conclusions : Patients as medical consumer were highly noticed of importance of the infection control in dental clinic and necessity of personal sanitary appliances. The patients who has accessed dental infection control information by external stimuli in advance showed objectival changes of their visit and behavioral changes with bringing medical environments together. This aspects influenced those patient`s re-use intention in conclusion. (J Korean Soc Dent Hygiene 2011; 11(4): 571-580)

유아의 정서지능, 어머니의 또래관리전략, 가정환경이 유아의 또래유능성에 미치는 영향

조민정(Min-Jeong Cho),문혁준(Hyuk-Jun Moon) 가톨릭대학교 생활과학연구소 2015 생활과학연구논집 Vol.34 No.1

In this research we investigated the effect of social demographic factor (especially childs gender and mothers job occupation), emotional intelligence of child, mothers peer relationship management strategy and home environment on the childs peer competence. Participants in this study were in total 319 five-years-old children, recruited from five child care facilities located in Seoul and Kyung-gi-do. SPSS WIN 17.0 program was used for the analysis of T-test, pearsons correlation and regression for the collected data, and the analysis results are as follows. Firstly, the gender of child and job occupation of mother had significant correlation with the child peer competence. Secondly, it was shown that childs peer competence has relation with childs emotional intelligence, mothers peer management strategy and home environment. Children with better self and others emotion usage, self emotions recognition and expression, emotion control and impulse suppression, peer relation skill and relation with teacher showed better peer competence. Thirdly, relative impact analysis showed that childs emotional quotation had most significant impact on childs peer competence, while mothers peer management strategy and home environment showed the second and third impact respectively.