대학의 메디컬 스킨케어 교과에서 Flipped Learning 수업 운영 효과 분석

박정연,박채영 한국엔터테인먼트산업학회 2022 한국엔터테인먼트산업학회논문지 Vol.16 No.8

This study analyzed an effect of the flipped learning teaching/learning method applied to the ‘medical skincare’ course offered by H University. It divided the subjects into two groups and applied the instructor-centered lecture class and the flipped-learning teaching/learning method to each one, respectively. It examined 13 students who participated in the former(the control group) and 19 who participated in the latter (the experiment group). It analyzed the data collected by using SPSS v. 25.0. Specifically, it calculated Cronbach's α, to verify the reliability of the measurement tool, and conducted an independent samples t-test, to examine whether there are differences in teaching presence, perceived interaction and class satisfaction between two groups. The findings are as follows: it examined the differences in the teaching presence, perceived interaction and class satisfaction between the experiment group to which the flipped-learning teaching/learning method was applied and the control group to which the instructor-centered lecture class was applied. Then, the results showed that they and their sub-factors were higher in the former. Based on the findings above, it can be found that the class to which the flipped-learning is applied has an entirely positive effect on students, and therefore, the flipped-learning can be considered as the teaching/learning method useful for fostering skin-care experts. This study, which attempted to apply the flipped-learning-based class model to the medical skin-care subject, has an implication, in that it suggests the potential of he flipped-learning-based class for the major field of skin-care.

플라스틱 세포치료제 보관용기의 극저온 환경 노출 시 구조적 변화에 대한 해석적 비교

박정연,이동목,이순례,윤길상 한국금형공학회 2020 한국금형공학회지 Vol.14 No.2

Recently, research and commercialization related to the field of cell-based therapeutic drug development has been actively conducted. In order to maintain cell viability and prevent contamination, refrigeration preservation devices, such as CRF (controlled rate freezer) or vapor type LN2 tanks have been developed. On the other hand, the storage container for liquid nitrogen tanks currently on sale minimizes the flow structure to prevent structural defects when stored in a liquid nitrogen tank having a high thermal conductivity than vapor nitrogen. If the cell-based treatment drug is stored in the gaseous LN2 tank as it is, the cell survival after thawing is greatly reduced. It was estimated that the existing storage container structure was a factor that prevented the rapid entry and circulation of gaseous nitrogen into the container. Therefore, this study intends to propose a new supercellular storage container model that can maintain the mechanical strength while maximizing the fluid flow structure. To this end, we estimated that the structural change of the storage container effects on the equivalent stress formed around the through-holes of them when exposed to a cryogenic environment using thermal-structural coupled field analysis. As a result of storage experiments in the gas phase tank of the cell-based therapeutic agent using the developed storage container, it was confirmed that the cell growth rate was improved from 66% to 77%, which satisfied the transportation standards of the FDA(Food and Drug Administration) cell-based therapeutic agent.

의료보험(醫療保險) 실시이후(實施以後) 지역주민(地域住民)의 의료기관이용행태(醫療機關利用行態) 변화(變化) 추이(推移)와 그 요인(要因)에 관한 조사연구(調査硏究)

박정연,Park, Jung-Yeon 한국보건간호학회 1989 韓國保健看護學會誌 Vol.3 No.2

The objectives of this study was to analyze the major causes of decreasing utilization rate of health care institutios in pilot-project area of regional medical insurance, Kwang-hwa and Kun-wi country. After the implementation of medical insurance, utilization rate of health institutions turned out' to be lower than it was estimated, when the pilot-project of regional medical insurance was planned. It might be due to changes in inhabitant's behavioral attitude toward medical insurance. So this study was made to find measures for financial stability by increasing utilization rate of health care institutions and to be available for basic demand-supply program of medical care. The hypothesis of this study was as follows; First. there is difference in understanding health care institutions between Kun-wi and Kwang-hwa. Second. respondesnts of inquiry survey have exact knowledge of their past experience of treatment taken prior to enforcement of medical insurance, Questionaire survey was made as to each 700 household among total 11, 884 households in Kun-wi and 20,919 households in Kwang-hwa. In case of Kun-wi, 70% of inquired households (491) gave their answers. In Kwang-hwa, the number was 560 households (80% of inquireds). Dollected data was processed and analyzed by way of using SPSS batch system. To evaluate facto rs distribution aspects of data and to make comparison between two area, percentage and $X^2$ distribution were applied. The results were as follows; L The utilization rate of health care institutions in Kun-wi and Kwang-hwa was lower than it was estimated. when pilot-project of medical insurance was planned. 2. Prior to the implementation of medical insurance. inhabitants in two area chose the medical institutions considering such factors. First was medical care fee cheap. second in habitant's residence, Third was the institutions conveniently easy of access. 3. After the implementation of medical insurance. 26.1% of inqurieds in Kun-wi and 41.6% in Kwang-hwa, changed medical institutions. In case of Kwn-wi, from health care institution (p 0.05), and in case of Kwang-hwa, vice versa, from general medical institutions to health care institutions. 4. Evaluation by factors were made such as follows. Inquired gave high marks to following facts: In case of Kun-wi, general medical institutions were difficult of access and relation between patients: was not friendly, but burden of medical expenditure was light. Effects of treatment and facilities was good. In case of Kwang-hwa, inquired gave high evaluation marks to the follow ing facts; facilities of medical institutions was not good, but the burden of medical expenditure was light. 5. After the implementation of medical insurance, the services was evaluated as good, but inquired hopec for lessening the burden of medical expenditure. 6. In case of exact understanding of cost-sharing, the evaluation rate in Kwang-hwa was higher than that of Kun-wi (p < 0.005). And positive attitude toward necessity of medical insurance was also good in Kwang-hwa (p < 0.05). 7. In case of inquired's attitude toward medical institutions, Kwang-hwa showed positive response (p < 0.05) 8. In the case of comparison between general medical institution and health care institution, two area showed similar positive response; medical manpower, facilities of medical institutions and effest: of treatement was good. 9. In comprehensive evaluation of benefit-service; the general medical institution's positiveness was higher than that of health care institutions in Kun-wi. But in Kwang-hwa vice-versa. 10. If the medical expenditure of general medical institution and health care institutions was equal 77% of inquireds in Kun-wi and 59.1% in Kwang-hwa answered that they chose general medical insurance. Considering results above mentioned, the conclusion of this study was made as follows. 1. In Kwang-hwa county, where the understanding of health care institutions's was good, the utilization's of h

지방족 폴리케톤 가교화에 메틸 메타아크릴레이트-아크릴로니트릴 랜덤공중합체가 미치는 영향

박정연,손영곤 한국고분자학회 2023 한국고분자학회 학술대회 연구논문 초록집 Vol.48 No.2

액체 종류에 따른 식물의 성장 특성 기초 실험

박정연,김정배,Park, Jeong-Yeon,Kim, Jeongbae 한국교통대학교 융복합기술연구소 2014 융ㆍ복합기술연구소 논문집 Vol.4 No.1

This study was experimentally performed to show the growth characteristics of one specified plant with various liquids, which can be purchased easily. To do that, this study measured the number of leaves attached to the plant sample and the height of liquids everyday during almost 15 days on summer season in the laboratory room. From the experiments, we revealed that the remained number of leaves can be related with the liquid height.

기초 언어자원을 활용한 군집화된 의미 레이블의 품질 향상

박정연,신형진,이재성 한국콘텐츠학회 2023 한국콘텐츠학회논문지 Vol.23 No.3

지도학습 기반의 단어 의미 모호성 해소 연구에서는 사전이나 시소러스 등을 활용하여 희소 데이터 문제를 효과적으로 처리하고 있다. 이 중에서, 군집화된 의미 레이블을 시퀀스 레이블링 기반 모델에 사용하는 방법이 높은 성능과 빠른 처리속도를 보였다. 본 연구에서는, 시소러스 등의 언어자원보다 비교적 쉽게 구할 수 있는 기초 언어자원을 사용해 군집화된 의미 레이블의 품질을 개선하는 방법을 제안한다. 이를 위해, 어휘의 의미 분류를 군집 초기화에 사용하고, 원시문장 말뭉치를 사용해 벡터의 품질을 향상시켰다. 이 개선된 의미 레이블을 BERT 기반 단어 의미 모호성 해소 모델에 적용하여 성능을 평가했다. 실험 결과, 제안 방법을 사용한 모델은 F1 70.6%의 성능을 보여 제안 방법을 사용하지 않은 기존 모델의 F1 69.1% 보다 높은 성능을 보였다. 따라서, 기초 언어자원을 추가로 사용하여 군집화된 의미 레이블의 품질을 향상시킬 수 있음을 보였다.

에디터스 레터 - 건축, 치열한 노력의 결과

박정연,Bahk, Joung Yeon 대한건축사협회 2023 建築士 Vol.653 No.-

자가 피부관리가 노인여성의 피부상태 개선과 자아존중감·삶의 만족도에 미치는 영향

박정연 한국피부과학연구원 2012 대한피부미용학회지 Vol.10 No.4

This study has attempted to investigate changes in skin conditions (sebum, moisture and elasticity levels) aftergiving a skincare lesson to 10 elderly women 6 times in total for two (2) weeks and having them take care of their skin on their own twice a week for eight (8) weeks and find out how their self-Respect and life satisfaction have changed. In terms of analysis of skin conditions, Hydration (Corneometer, CM825), sebum (Sebumeter, SM815) and elasticity (Cutometer) were measured using the multi-process of MPA9 (C+K electronic GmbH, Cologne, Germany). Using a questionnaire tool, self-Respect and life satisfaction were examined. Then, the following results were obtained: The Hydration, sebum and elasticity levels increased in four (4) and eight (8) weeks after self skincare, but no statistical significance was observed. In terms of self-Respect and life satisfaction, self-Respect increased from 31.90±3.44 to 36.20±4.07 while life satisfaction increased from 66.80±8.71 to 71.10±7.49 in eight (8) weeks (p<.001).

에디터스 레터 - 불경기에 좋은 작품이 만들어진다?

박정연 대한건축사협회 2023 建築士 Vol.652 No.-

Preservice Teachers’ L2 Writing Anxiety and Their Perceived Benefits of Freewriting: A Case Study

박정연 한국영어교육학회 2022 ENGLISH TEACHING(영어교육) Vol.77 No.-

The purpose of this study was to examine L2 learners’ perceived writing anxiety and the usefulness of freewriting in improving L2 writing fluency. Seventeen L1-Korean preservice English teachers enrolled in a teacher education program at a university participated. An L2 writing anxiety survey, 170 freewritings, and 17 reflective writings were analyzed. The participants showed a moderate level of L2 writing anxiety, mostly due to a lack of confidence. Across 10 freewriting practice sessions, participants’ words per minute gradually increased, with high and low fluency groups showing a similar upward trend. Participants’ written reflections revealed that they perceived the freewriting practice useful in boosting confidence and improving skills. Expressing ideas freely without concern for accuracy alleviated their L2 writing anxiety most. Participants reported they had difficulty writing in English continuously for several minutes, and disliked absence of teacher feedback.