일 종합병원 퇴원환자의 가정간호요구조사

최화영,이명하,Choi, Hwa-Young,Lee, Myung-Ha 한국가정간호학회 2002 가정간호학회지 Vol.9 No.2

The purpose of this study is to provide a basic data of home health care nursing centered in the hospital by analyzing home health care needs. Data were collected from June 15. 2000 to June 23. 2000 through questionnaires taken by 208 patients to be discharge in a general hospital. The Home Health Care Need instruments used for collecting data was developed by the researcher. The data obtained were analyzed using frequency. percentage. mean. standard deviation. Chi-square test. t-test. one-way ANOVA. Pearson's correlation coefficients. Cronbach's alpha coefficients and Factor Analysis. The results of the study were as follows: 1. The perception of home health care nursing were 65.4% of subjects had never heard about home health care service and 2.4% of subjects knew about the methods & contents in detail. About the demands of home health care, 58.2% of the subjects were willing to use home health care and 41.8% weren't. 2. Regarding the areas of home health care needs. basic nursing care area was the highest. Education/ counselling, exercise/ hygiene. therapeutic nursing care was orderly. Injection and medication management of basic nursing care area were the highest. 3. In relation to characteristic-related diseases and home health care needs. as for the discharge type, the existence of sores, paralysis showed significant differences with home health care needs in the area of exercise/ hygiene(p<,05). Home health care needs in the area of therapeutic nursing care and exercise/ hygiene showed significant differences with the existence of pain. Home health care needs in the area of therapeutic nursing and basic nursing areas were significantly different in the use of catheter/ assistant instrument(p<.05). Home health care needs in the area of therapeutic nursing. exercise/ hygiene and basic nursing care showed significant difference with diagnosis(p<,05). In conclusion, awareness about home health care nursing were very low, home health care needs in the area of basic nursing was the highest. Home health care needs showed significant difference with discharge type, sores, paralysis, existence of pain, use of catheter/ assistant instrument and diagnosis.

치과진료와 방사선촬영 중에 치과위생사의 감염관리행위에 대한 실태조사

최화영 ( Hwa Young Choi ),최용석 ( Yong Suk Choi ) 한국치위생학회(구 한국치위생교육학회) 2011 한국치위생학회지 Vol.11 No.2

Objectives : This study was conducted to investigate the actual state of dental hygienist`s behavior for infection control during dental practice and radiologic examination and to evaluate the dental hygienist`s awareness of the importance of infection control in dental office. Methods : A survey on 218 dental hygienists was carried out. The respondents to complete a questionnaire were the dental hygienists who were in dental office on Gwang-ju area or attended complementary training conducted by the Seoul Branch of Korean Dental Hygienists Association in April 2010. The data were collected and analyzed with x²test, t-test, ANOVA using SPSS program. Results : The ratios of educational experience for infection control in dental practice and radiologic examination room accounted for 87.6% and 30.3% respectively. Behavior degree of mask-wearing in the dental practice and radiologic examination room were 4.60±0.70 and 3.77±1.09 respectively. Behavior degree of glove-wearing in the dental practice and radiologic examination room were 4.40±0.91 and 3.68±1.17 respectively. In case of the relation between educational experience and behavior degree in mask-wearing or glove-wearing, there was no significant difference in the performance of mask or glove wearing during dental practice, and mask- earing during radiologic examination. However, there was a significant difference (p<0.05) in the performance of glovewearing during radiologic examination, which revealed that behavior degree between the respondents having educational experience and the others no having it were 3.92±1.19 and 3.58±1.14 respectively. The surface disinfection control for radiation and protective equipments used in radiologic examination room was done by occasional needs without premeditated schedules. Conclusions : The result of this study shows lower behavior degree during radiologic examination compared with one during dental practice. We suggest that there are needs to raise the awareness of infection control and to improve infection control behavior, and through this study, the importance of education was verified.

인터넷 개인방송 플랫폼의 경쟁우위에 관한 적소 분석 연구: 이용자 충족요인을 중심으로

최화영(Hwa Young Choi),하승태(Sungtae Ha) 부산울산경남언론학회 2021 지역과 커뮤니케이션 Vol.25 No.1

인터넷 개인방송 플랫폼의 공급과 수요가 증가함에 따라 기존 인터넷 개인방송 플랫폼과 새롭게 시장에 진입한 플랫폼 서비스 간 치열한 경쟁이 벌어지고 있다. 본 연구는 인터넷 개인방송의 이용자 충족요인(적소요인)을 밝히고 적소이론을 적용함으로써, 아프리카TV, 카카오TV, 유튜브 개인방송, 트위치TV 간의 경쟁우위를 분석하고자 했다. 개인방송 플랫폼의 이용 경험이 있는 대학생 196명에 대한 설문 조사를 바탕으로, 기술적 편리성, 광고 회피 가능성, 이용자 유대감, 콘텐츠 유용성, 서비스 신뢰도, 정보전달 속도라는 여섯 가지 유의미한 이용자 충족요인이 도출되었다. 경쟁우위 분석에서는 트위치TV가 가장 많은 충족요인에서 상대적으로 높은 충족점수를 얻었으며 경쟁우위에 있었다. 기술적 편리성 요인에서는 유튜브 개인방송이 가장 높은 경쟁우위를 보였다. 카카오TV는 가장 많은 충족요인에서 경쟁열위에 있었으며, 아프리카TV는 서비스 신뢰도 요인에서 가장 경쟁열위인 것으로 나타났다. 결국, 기술, 콘텐츠, 이용자 네트워크 등에서 주요한 충족기회를 제공하는 것이 플랫폼의 경쟁우위를 점하는 주요 요인으로 판단된다. 본 연구결과는 인터넷 개인방송 이용자들 간의 미디어 선택과 이동에 대한 논리적인 설명을 제공할 수 있을 것이다. As the supply and demand of the Internet personal broadcasting platform increase, the competition between pre-existing Internet personal broadcasting platforms and new challengers is becoming more intense. In this study, we tried to investigate the competition superiority among Africa TV, Kakao TV, YouTube personal broadcasting, and Twitch TV by clarifying the niche factors of user satisfaction about the internet personal broadcasting platforms. We found six significant factors of user satisfaction: technical convenience, ad avoidance possibility, user fellowship, content usability, service reliability, and information transfer speed. In general, Twitch TV appeared to have the highest satisfaction scores on those factors and thus, the highest competitive superiority. Concerning the technical convenience factors, YouTube personal broadcasting showed an overwhelmingly high competitive superiority. Kakao TV and Africa TV were inferior on most of those factors, and Africa TV get lowest score on the service reliability. It can be seen that providing a certain satisfaction opportunity has a great impact on the platform"s competitive superiority. These findings will provide some reasonable expectations about the media selection and migrations among the users of the Internet personal broadcasting platfroms.

치과위생사의 방사선안전관리 실천행위분석

최화영(Hwa-Young Choi),박민경(Min-Kyoung Park) 한국구강보건과학회 2017 한국구강보건과학회지 Vol.5 No.2

The purpose of this study was to investigate the relationship between the practice of radiation safety management and the organization of the dental hygienist who conducts the main duties of the radiological examination at the oral medical institution. The average number of respondents working in dental clinics and clinics in Gwangju City who answered yes according to the presence of radiation safety management was 3.38, which was higher than the average of 3.05 who answered no . There was a significant difference between them. In the case of the radiation environment management environment, the average was 2.98, and the facility and equipment environment for radiation safety management was 3.16 on average. Radiation safety management activities showed a statistically significant positive correlation with organization in relation to radiation safety management, the organizational atmosphere, and both the facilities and the equipment environment. Based on the results of these studies, systematic management of radiation safety management should be conducted with interest from the organization directly involved in exposure.

머신러닝을 이용한 성인흡연자의 금연행동 예측모델 구축 및 평가

최화영 ( Hwa-young Choi ),이광수 ( Kwang-soo Lee ) 대한보건협회 2021 대한보건연구 Vol.47 No.4

연구목적 : 본 연구의 목적은 머신러닝 알고리즘을 통해 흡연자의 금연행동을 예측하는 모델을 구축하고, 금연행동에 미치는 요인의 영향을 평가하는 것이다. 연구방법 : 연구는 2019년 지역사회건강조사 전국 데이터를 사용하였고, 대상자는 흡연경험이 있는 만 19세 이상 성인으로 하였다. 종속변수는 금연시도와 금연성공을 사용하였다. 금연시도의 연구대상자는 무응답을 제외한 후 84,126명이었고, 금연성공의 대상자 수는 금연시도 경험이 있는 61,784명이었다. 연구대상자의 남녀 비율은 9:1이었고 과적합을 방지하기 위해 남녀를 구분하여 예측모델을 구축하였다. 자료 분석은 SAS 9.4를 이용하여 데이터 전처리, 일반적 특성 파악을 진행하였고, SAS Enterprise-Miner 15.2를 이용하여 모델링 및 비교, 스코어 시각화를 진행하였다. 결과 : 연구의 주요 결과는 다음과 같다. 첫째, 랜덤포레스트 알고리즘을 이용하여 구축한 예측모델은 금연시도와 금연성공을 예측할 때 AUC 값이 0.7~0.8이상으로 안정적이었다. 둘째, 남성은 흡연기간이 길수록 금연시도를 할 확률이 줄어들지만 금연을 하게 될 경우 유지할 확률이 높았다. 셋째, 여성은 흡연기간이 길수록 금연시도 확률이 남성에 비해 큰 폭으로 감소하고, 흡연기간이 길수록 금연성공 할 확률도 감소하였다. 결론 : 연구를 통해 머신러닝 알고리즘을 금연연구에 적용할 수 있는 가능성을 확인하였으며, 성별과 흡연기간이 금연지원 시 주요 고려 변수임을 시사하였다. Objectives : The purpose of this study was to formulate a prediction model for smoking cessation behaviors of adult smokers using machine learning algorithms and to evaluate the effects of factors on the smoking behaviors. Methods : Community health survey in 2019 was utilized, and the study subjects were persons over 19 years of age who smoke or have smoked. Dependent variables were smoking cessation behaviors such as smoking cessation attempts and successful smoking cessation. 84,126 persons had experiences of smoking cessation attempts, and 61,784 persons had experiences of successful smoking cessation. Prediction models were formulated by gender to prevent over-fitting. SAS 9.4 was utilized for the descriptive analysis, and SAS Enterprise-Miner 15.2 was utilized for the prediction model building and to visualize the scores. Results : Study results showed that first, the prediction model using a random forest algorithm had an AUC(Area Under the Curve) of 0.7-0.8 in predicting smoking cessation attempts and successful smoking cessation, which indicates a stable result. Second, men who smoked for a longer period were less likely to attempt smoking cessation but were more likely to maintain their smoking cessation once they succeeded. Third, the likelihood for female smokers to quit smoking dropped quicker than their male counterparts as they smoked for a longer period. Female smokers who smoked longer were also less likely to succeed in smoking cessation. Conclusion : This study suggested the possibility for machine learning algorithms to be adapted to smoking cessation program and suggested that sex and length of smoking periods will be major factors for supporting smoking cessation.

Soluble Production of CMP-Neu5Ac Synthetase by Co-expression of Chaperone Proteins in Escherichia coli

최화영 ( Hwa Young Choi ),이령 ( Ling Li ),조승기 ( Seung Kee Cho ),이원흥 ( Won Heong Lee ),서진호 ( Jin Ho Seo ),한남수 ( Nam Soo Han ) 한국미생물생명공학회(구 한국산업미생물학회) 2014 한국미생물·생명공학회지 Vol.42 No.2

CMP-Neu5Ac synthetase는 sialyated 된 glycoconjugates의 전구체로 사용되는 CMP-Neu5Ac를 합성하는데 관여하는 주요 효소이다. Escherichia coli K1에서 유래한 CMP-Neu5Ac synthetase 유전자 (neuA)는 평소 E. coli BL21(DE3)에서 비수용성으로 생성되는데, 이를 수용성 단백질로 생산하고자 여러 가지 샤페론 단백질 동시 발현기술을 이용하였다. 이를 위해, GroEL-ES와 DnaK-DnaJ-GrpE를 암호화하는 pG-KJE8 plasmid와 neuA를 동시 형질전환 시켰고 0.01 mM IPTG와 0.005 mg/ml의 L-arabinose로 유도하여20oC에서 발현시켰다. 그 결과, E. coli에서의 수용성 CMP-Neu5Ac Synthetase 생산이 현저하게 증가하였다. CMP-Neu5Ac synthetase is a key enzyme for the synthesis of CMP-Neu5Ac, which is an essential precursor of sialylated glycoconjugates. For the soluble expression of the CMP-Neu5Ac synthetase gene (neuA) from Escherichia coli K1, various heat shock proteins were coexpressed in E. coli BL21 (DE3) Star. In order to do this, a pG-KJE8 plasmid encoding genes for GroEL-ES and DnaK-DnaJ-GrpE was co-transformed with neuA and was expressed at 20°C by addition of 0.01 mM IPTG and 0.005 mg/mL L-arabinose. The coexpression of various heat shock proteins resulted in remarkably improved production of soluble CMP-Neu5Ac synthetase in E. coli.

면역비탁법을 이용한 HbA1c 측정의 유용성 평가

이무주 ( Moo Joo Lee ),최화영 ( Hwa Young Choi ),이숙희 ( Sook Hee Lee ),이은경 ( Eun Kyung Lee ),이동희 ( Dong Hee Lee ),박우현 ( Woo Hyun Park ) 대한임상검사과학회 1996 대한임상검사과학회지(KJCLS) Vol.28 No.1

일부지역 치위생(학)과 학생들의 진학만족도와 진로방향, 치과위생사 이미지에 관한 연구

문선정(Moon, Seon-Jeong),구인영(Ku, In-Young),최화영(Choi, Hwa-Young),가경환(Ka, Kyung-Hwan) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.1

본 연구는 치위생(학)과 학생들의 진로방향에 대한 기준제시와 치과위생사의 바람직한 이미지 구축에 필요한 기초자료를 마련하고자 대구ㆍ경북지역 소재 대학 치위생(학)과 재학생을 대상으로 자기기입식 설문조사를 실시하였다. 자료 수집은 2013년 2월부터 2013년 5월까지 수행하였고, 수집된 자료 중 응답이 불성실한 46부의 설문지를 제외한 1,679부를 SPSS/Win18.0을 사용하여 최종 분석하였고, 다음과 같은 결론을 얻었다. 선택후회와 진학추천의 경우 1학년이 2, 3, 4학년보다 높았고, 전과의지는 3, 2, 4학년이 1학년보다 높은 것으로 나타나, 저학년일수록 진학만족도가 높았다. 희망진로는 모든 학년에서 치과위생사로의 취업이 높았고, 취업 희망경로는 1학년의 경우 교수추천, 2학년, 3학년, 4학년의 경우 공개채용이 높았다. 취업희망 지역은 대도시, 선택이유는 발전가능성이 높았다. 취업 희망기간은 모든 학년에서 결혼 전, 자녀성장 후 재취업이 높았고, 희망근무처는 1학년 대학병원치과, 2학년, 3학년, 4학년의 경우 치과병원이 높았다. 학년에 따른 치위생사 이미지 차이에서 태도의 경우 1, 2학년이 3학년보다 높았고, 신념은 1, 2학년이 3, 4학년보다 높았으며, 가치는 4학년이 1, 3, 2학년보다, 2, 3학년이 1학년보다 높은 것으로 나타나, 태도와 신념은 저학년일수록, 가치는 고학년일수록 높았다. 진학만족도 요인 중, 전과의지와 진학권유 요인이 치과위생사 이미지에 유의한 영향을 미치는 것으로 나타났다. 치위생(학)과 학생들은 직업에 대한 정체성을 확립하고, 치과위생사의 바람직한 이미지화를 위해 노력해야 할 것이며, 체계적이고, 적극적인 홍보활동을 통하여 치과위생사에 대한 보다 정확하고, 긍정적인 이미지를 높이기 위한 끊임없는 노력이 필요할 것으로 사료된다. A self-administered survey was conducted in dental hygiene students at colleges or universities in Daegu and North Gyeongsang Province to provide basic data necessary to suggest standards for the direction of career for dental hygiene students and construct desirable image of dental hygienists. The data were collected from February to May 2013; with the exception of 46 questionnaires containing insincere responses, 1,679 were finally analyzed using SPSS/Win 18.0, drawing the following conclusion: The freshmen showed higher levels of regret for selection and enrollment recommendation than the sophomores, juniors, or seniors and the sophomores, juniors, and seniors showed higher levels of willingness to change courses than the freshmen; thus, those in lower grades showed higher environment satisfaction. As for desired career, regardless of grades, they showed higher preference for being employed as a dental hygienist; as for desired paths to get a job, the freshmen were more likely to get professors' recommendations and the sophomores, juniors, and seniors showed higher preference for open recruitment. They showed higher preference for getting a job in a large city because of greater possibility of improvement. As for the desired period of employment, regardless of grades, they showed higher preference for employment before getting married and for reemployment after their children grew up; as for desired workplace, the freshmen showed higher preference for a dental clinic in a hospital, whereas the sophomores, juniors, and seniors showed higher preference for a dental hospital. As for the differences in image of dental hygienists by grades, the freshmen and sophomores showed higher levels of attitudes than the juniors; the freshmen and sophomores showed higher levels of beliefs than the juniors or seniors; and the seniors showed higher levels of values than the freshmen, sophomores, or juniors, and the sophomores and juniors showed higher levels of values than the freshmen; thus, students in lower grades showed higher levels of attitudes and beliefs and those in higher grades showed higher levels of values. Such factors of enrollment satisfaction as willingness to change courses and persuasion to make enrollment had significant effects on image of dental hygienists. Dental hygiene students need to make efforts to establish a job identity and get desirable image of dental hygienists and to make constant efforts to promote more accurate and positive image of dental hygienists through systematic and positive public relations.

軍 국가감염병 전담병원에서의 이동형음압기 성능 기준 개선방안 연구

서청수 ( Cheong Soo Seo ),김영규 ( Young Kyu Kim ),최화영 ( Hwa Young Choi ),최정민 ( Jeong Min Choi ) 국군의무사령부 2021 대한군진의학학술지 Vol.52 No.1

Objective; Although efforts have been made to improve scarce health care resources due to the epidemic of infectious diseases such as MERS-CoV, the massive outbreak of COVID-19 has again recreated the lack of negative pressure isolation ward. The government tried to expand the insufficient negative pressure isolation ward by installing a portable negative pressure unit in the general ward. However, the current installation standards for portable negative pressure unit announced by the health authorities are ineffective due to the insufficient performance standards. Method; In order to improve performance standards of portable negative pressure unit, the official guidelines of government agencies and documents on the performance required by the national technical standards for similar devices such as vacuum cleaners were studied. In addition, a silencer test was conductde once on 112 portable negative pressure unit installed in the negative pressure isolation ward of an acutal infectious disease hospital. Result; As a performance standard improvement measure for portable negative pressure unit, the particle size of the HEPA filter satisfies the filtration efficiency of 99.97% or more at 0.3μm (0.1∼0.2μm recommended), the filter leakage standard is 0.005% or less, and the air volume accuracy is within ±10% needed to be improved. It is recommended that the noise be kept below 50dBA under the condition that the standard differential pressure is satisfied. Conclusion; For portable negative pressure unit used in medical institutions, filter and airflow performance standards are absolutely necessary to prevent secondary infection in hospitals, and noise standards need to be considered for stable patient healing.

일부지역 치위생(학)과 학생들의 교내 ‧ 외 임상실습만족도와 전공만족도에 관한 조사연구

문선정(Moon, Seon-Jeong),구인영(Ku, In-Young),최화영(Choi, Hwa-Young),가경환(Ka, Kyung-Hwan) 한국산학기술학회 2014 한국산학기술학회논문지 Vol.15 No.11

본 연구는 치위생(학)과 학생들의 실습수준을 향상시키고, 개선하여 실습 후에 전공에 대한 만족도를 향상시킬 수 있는 기초자료를 마련하고자 충청지역 소재 대학 치위생(학)과 재학생을 대상으로 자기기입식 설문조사를 실시하였다. 자료 수집은 2012년 12월부터 2013년 4월까지 수행하였고, 수집된 자료 중 응답이 불성실한 13부의 설문지를 제외한 766부를 SPSS/Win18.0을 사용하여 최종 분석하였고, 다음과 같은 결론을 얻었다. 교내·외 실습경험군은 각각 59.7%, 57.4%이었고, 실습 장소는 치과대학 병원, 병(의)원급, 보건소 순이었다. 학제의 경우 4년제가 3년제 보다 실습내용, 실습시간, 실습수행 요인에서 교내 실습만족도가 높았고, 학년이 높을수록 실습시간에 대한 만족도가 높았다. 교외 실습만족도는 4년제가 3년제 보다 모든 요인에서 만족도가 높았고, 학년이 높을수록 실습시간과 실습수행 요인에서 만족도가 높았다. 교내·외 실습경험 에서 실습 경험군이 비경험군에 비해 전공만족도가 전반적으로 높았고, 실습수행, 실습시간, 실습환경, 실습내용 모든 요인이 전공만족에 유의한 영향을 미치는 것으로 나타났다. 교내·외 실습교육을 통해 전공에 대한 자부심을 가질 수 있도록 학생들 에 대한 이해와 인식을 통해 만족할 수 있는 교육을 계획하고, 실시하여 임상실습이 최적의 학습상황이 될 수 있도록 효율적 인 프로그램과 임상실습에 대한 교육지침의 마련이 필요할 것으로 사료된다. A self-administered survey was conducted on dental hygiene students at colleges or universities in Chungcheong Province to increase the levels of practice for them and provide basic data that could improve their major satisfaction after practice. The data was collected from December 2012 to April 2013 and 766 questionnaires, except for 13 containing insincere responses, were finally analyzed using SPSS/Win18.0. The on- and off-campus practice groups formed 59.7% and 57.4%, respectively. The most frequent place for practice was university dental hospitals, followed in order by hospitals/clinics and health centers. University students were more satisfied with on-campus practice in terms of factors, such as practice contents, practice time, and practice performance than those at three-year colleges. The students in the higher grades were more satisfied with the practice time. The university students were also more satisfied with off-campus practice in terms of all the factors than those at three-year colleges. The students in higher grades were more satisfied with the practice time and practice performance. The on- or off-campus practice group was generally more satisfied with their major than the non-practice group, and each of the factors-practice performance, practice time, practice environment, and practice contents-significantly affected the major satisfaction. The results highlight the need to plan and provide satisfactory education based on an understanding and awareness of students so that they can take pride in their major through on- and off-campus practice. In addition, it is also necessary to develop educational guidelines for clinical practice and efficient programs so that clinical practice can create the optimal learning situation.