응급실 간호사의 일상에 대한 문화기술지

하재현(Ha, Jae-Hyun),박형숙(Park, Hyoung-Sook) 기본간호학회 2016 기본간호학회지 Vol.23 No.4

Purpose: This ethnographic study was conducted to explore and understand themeaning of the daily life of nurses in emergency departments. Objectives for this study were to identify and describe the true nature of emergency roomnurses’ daily experience and create a theoretical model based on the findings. Methods:Data were collected through in-depth interviews and participants observation. These data were recorded and transcribed verbatimwith consent of the informants, 10 nurses who had cared for patients in emergency rooms. Data were collected between November 2013 and October 2014. Interviews continued until no new information could be identified from transcripts. Data were analyzed using the taxonomic analysis method developed by Spradley. Results: Based on the data acquired from interviews, nurses’ cultural domains were classified as ‘extensity of emergency room nurses’, ‘temporality of emergency room nurses’, ‘relationships among emergency room nurses’ and ‘becoming an emergency roomnurses’. Conclusion: The daily culture of emergency room nurses could be summarized as ‘busy daily life amidst confusion’. However, many nurses boosted their self-esteem by taking care of patients’ collaboration with fellow nurses. In other words, nurses in emergency room forms a dynamic culture and pursue professionalism, rather than a simple chaotic daily life culture.

알키드 변성폴리에스테르를 함유하는 2성분계 폴리우레탄 도료의 제조와 도막물성

신재현,김성계,하경진,박홍수 ( Jae Hyun Shi,Sung Gea Kim,Kyung Jin Ha,Hong Soo Park ) 한국공업화학회 1997 공업화학 Vol.8 No.6

3,5,5-trimethylhexanoic acid(THA)와 트리메틸올프로판올 에스테르화시켜 중간생성물을 얻은 후, 중간생성물 속의 알키드 폴리올 성분인 THA의 함량을 10, 20, 30wt%로 변화시키면서 1,4-부탄디올, 트리메틸올프로판 및 아디프산과 축중합하여 알키드 변성폴리에스테르를 각각 합성하였다. 위에서 합성된 알키드 변성폴리에스테르에 폴리이소시아네이트쪽 성분인 Desmodur L-75와 블렌드하여 2성분계 폴리우레탄 도료를 제조하였다. 제조된 도료의 도막처리후의 제반 물성시험을 해 본 결과 3,5,5-trimethylhexanoic acid의 함량증가에 따라 8^-점의 높은 연화도, 2-3시간의 짧은 건조시간 및 18∼23시간의 긴 가사시간을 나타내어 알키드기의 장점이 일부 나타남을 확인하였다. Alkyd modified polyester was synthesized by the polycondensation of 1,4-butanediol, trimethylolpropane, adipic acid, and the intermediate obtained by the esterification of 3,5,5-trimethylhexanoic acid(THA) and trimethylolpropane, where the contents of THA as a component of alkyd polyol in the intermediate were changed according to 10, 20, and 30wt%, respectively. Two-component polyurethane coatings were prepared by blending the synthesized alkyd modified polyester with Desmodur L-75 as a component of polyisocyanate. Various tests for coating properties with the prepared coatings show that high fineness of grind of 8^-point, short drying time of 2∼3 hours, and long pot-life of 18-23 hours were observed with the content of 3,5,5-trimethylhexanoic acid.

코로나19 대유행 시 간호사의 대구지역 의료자원봉사 경험: 질적 사례연구

하재현(Ha, Jae-Hyun),김기련(Kim, Ki-Ryeon) 전남대학교 간호과학연구소 2021 Nursing and Health Issues(NHI) Vol.26 No.1

Purpose: This study aimed to explore the meaning of a nurse s nursing volunteering experiences in Daegu during the COVID-19 pandemic. Methods: In this qualitative case study, data were collected through an in-depth interview with one nurse regarding her nursing volunteering from December 9 to 20, 2020. The interview lasted about 120 min. The participant was a woman in her early 30s, worked at a general hospital for 7 years, and was a housewife who resigned due to childbirth two years ago and has one child. Results: Five theme clusters emerged from the data as follows: 1) Hearing news of a medical disaster 2) Nursing volunteer support decisions 3) Visiting a disaster scene 4) Impression at the scene of disaster 5) Nursing volunteering to be a thinking life. Conclusion: Nursing volunteering served as an opportunity to grow further by thinking about the need and value of volunteering. The results of this study can be a guide for nurses participating in nursing volunteering.

간호대학생의 의사소통능력, 비판적 사고능력, 셀프리더십에 관한 연구

하재현(Ha, Jae-Hyun),이현주(Lee, Hyun-Ju) 전남대학교 간호과학연구소 2020 Nursing and Health Issues(NHI) Vol.25 No.2

Purpose: The purpose of this study was to identify nursing students communication competency, critical thinking competency, and self-leadership. Methods: The study was a descriptive-correlational study which used a convenience sample of 132 nursing students drawn from 2 universities. Descriptive statistics t-test, Mann-Whitney U, Kruskal Wallis, and Pearson s correlation were utilized for data analysis. Results: The results of this study were as follows: Nursing students who were the second eldest child showed higher communication ability than those who were an only child or the oldest child (X²=6.45, p =.040). Male students had higher critical thinking competency than female students (z=−2.60, p =.009). Students with a high degree of college life satisfaction had high levels of communication competency (X²=25.87, p =<.001), critical thinking competency (X²=8.60, p =.014), and self-leadership(X²=9.09 p =.011). Nursing students with a high degree of major satisfaction had higher communication competency (t=4.56, p =<.001), critical thinking competency (t=4.38, p =<.001), and self-leadership (t=3.27, p =.001). Nursing students with a high degree of club activity involvement had higher communication competency (t=2.39, p =.018), critical thinking competency (t=2.71, p =.008), and self-leadership (t=2.99, p =.003). A significant positive correlation between communication competency, critical thinking competency, and self-leadership was demonstrated amongst nursing student participants (r=.71, p <.001). Conclusion: Communication competency, critical thinking competency, and self-leadership were all found to be positively correlated. Therefore, in order to improve the communication competency, critical thinking competency, and self-leadership among nursing college students, it is necessary to prepare a plan to increase the degree of satisfaction with their nursing department and major, and investigate ways to support greater involvement in various club activities.

임베디드 시스템의 보안성 향상을 위한 LLVM 기반의 소스코드 난독화 도구 설계

하재현 ( Jae-hyun Ha ),곽동규 ( Donggyu Kawk ) 한국정보처리학회 2022 한국정보처리학회 학술대회논문집 Vol.29 No.2

임베디드 시스템이 일상생활 및 각종 산업에 밀접하게 연관되어 개인 정보 및 국가 기술 등 지적 자산에 대한 보안의 필요성이 나타나고 있다. 이러한 문제점은 임베디드 시스템에 들어가는 소프트웨어의 역공학으로부터 초래된다. 따라서 본 논문은 소스 코드에 대해 제어 흐름 평탄화라는 난독화 알고리즘을 설계하는 방법을 제안한다. 이는 독자적으로 작성된 난독화 알고리즘이기 때문에 오픈 소스로 공개되어져 있는 다른 난독화 도구들에 비해 안전한 특징을 가진다. 제어 흐름 평탄화는 프로그램의 기능을 유지하면서 소스 코드의 정적 분석을 어렵게 하는 기법으로, 데이터를 탈취하려는 악의적인 행위를 사전에 예방할 수 있다. 본 논문에서 제안하는 제어 흐름 평탄화 알고리즘은 하나의 기본 블록으로 이루어진 단순한 소스코드를 여러 개의 기본 블록으로 분할하고, 조건문을 통해 연결하는 방법을 사용하여 알고리즘의 복잡도를 높였다. 이처럼 새롭게 작성된 Pass를 통해 소스코드 난독화를 적용시켜 임베디드 시스템의 보안성을 향상시킬 수 있다.

코로나19 전담병원 간호사의 감염관리 피로, 공감역량이 재난간호 핵심역량에 미치는 영향

하재현(Ha, Jae-Hyun),이현주(Lee, Hyun-Ju),김기련(Kim, Ki-Ryeon) 기본간호학회 2022 기본간호학회지 Vol.29 No.4

Purpose: This study aimed to measure the influence of infection control fatigue and compassion competence on disaster nursing core competencies of nurses at COVID-19 designated hospitals. Methods: A descriptive survey was conducted among 128 nurses from two COVID-19 designated hospitals. Data were collected from June 1 to 14, 2022 and analyzed using the t-test, one-way analysis of variance, Pearson correlation coefficients, and hierarchical multiple regression with SPSS for Windows version 26.0. Results: Disaster nursing core competencies had a significant correlation with compassion competence (r=.50, p<.001), but not with infection control fatigue. Multiple regression analysis for disaster nursing core competencies revealed that the most powerful predictor was communication (β=.31, p<.001). Communication, insight and having children explained approximately 30% of the variance in disaster nursing core competencies. Conclusion: The compassion competence of nurses at COVID-19 designated hospitals was a major factor influencing disaster nursing competence. Communication was the most important sub-factor of compassion competence. It will be necessary to develop and implement a program to enhance nurses compassion competence to improve nurses disaster nursing core competencies.

임상연구 : 갑상선절제술 후 오심과 구토 예방을 위한 Ondansetron, Midazolam의 효과

하재현 ( Jae Hyun Ha ),곽경화 ( Kyung Hwa Kwak ),서정원 ( Jeong Won Seo ),이수현 ( Su Hyun Lee ),박성식 ( Sung Sik Park ),백운이 ( Woon Ei Baek ) 대한마취과학회 2007 Korean Journal of Anesthesiology Vol.53 No.3

하브루타 교수법을 적용한 간호학 전공교과목 수업에 대한 학생 경험

하재현(Ha, Jae-Hyun),이현주(Lee, Hyun-Ju) 학습자중심교과교육학회 2021 학습자중심교과교육연구 Vol.21 No.20

목적 본 연구의 목적은 하브루타 교수법을 적용한 간호학 전공교과목 수업에 대한 학생 경험을 탐구하여 그 경험에 대한 의미의 본질을 생생하게 기술하고 이해하는 것이다. 방법 간호학생이 경험한 하브루타 교수법 수업 경험의 본질을 심층적으로 기술하고 이해하기 위하여 간호학과 학생 12명을 대상으로 2020년 9월부터 12월까지 심층면담을 실시하였다. 수집한 자료는 Colaizzi가 제시한 현상학적 분석방법을 적용하여 학생들의 경험을 충실하게 파악하고 기술하였다. 결과 하브루타 교수법을 적용한 간호학 전공교과목 수업에 대한 학생 경험은 10가지 주제와 세 가지 주제모음으로 도출되었다. 연구결과로 도출된 세 가지 주제모음은 ‘재미있고 흥미로운 하브루타’, ‘상호작용이 활발한 하브루타’, ‘다양한 문제를 경험하는 하브루타’이었다. 결론 간호학 전공교과목 학생경험에 대한 본 연구의 결과는 하브루타 교수법에 대한 간호학생의 생생한 경험을 보여주었다. 하브루타 교수법은 학생들에게 수업의 재미와 흥미를 가져다주고 활발한 상호작용과 다양한 문제를 경험하면서 오랫동안 수업내용을 기억하게 하였다. 이는 다양한 간호학 전공 수업에도 하브루타 교수법 적용의 가능성을 보여주는 것으로, 향후 간호교육, 연구 및 실무 현장에서도 활발한 적용을 기대한다. Objectives The purpose of this study was to explore the experiences of nursing students’ Habruta teaching method. Methods For this study, in-depth interviews were conducted with a total of 12 nursing students, and data were collected through individual in depth interviews from September to December 2020. The data were analyzed using the phenomenological analysis method suggested by Colaizzi. Results The experience of nursing students’ Habruta teaching method consisted of three themes. Three themes are ‘Fun and interesting Havruta’, ‘Lively interacting Havruta’, and ‘Various questions involving Havruta’. Conclusions Findings from this study presented vivid experiences of nursing students who on Habruta teaching method. The Habruta teaching method brought the fun and interest of the class to the students, and made them remember the contents of the class for a long time while experiencing active interaction and various problems. It is necessary to apply the Habruta teaching method to various nursing major classes.

합성섬유용 방사유제의 제조에 관한 연구

김성계,신재현,하경진,김상범,박홍수 ( Sung Gea Kim,Jae Hyun Shin,Kyung Jin Ha,Sang Bum Kim,Hong Soo Park ) 한국유화학회 1997 한국응용과학기술학회지 Vol.14 No.1

Spin finish(NSFs) for synthetic fiber were prepared. NSF-3 was proved to be the best spin finish by testing the properties and emulsion stability, etc. of NSFs. NSF-3 prepared by blending of spindle oil 70g, paraffin wax 10g, glyceryl mono-oleate 5g, POE(10) nonylphenyl ether 4g, POE(20) sorbitan tri-oleate 4g, Na-dioctyl sulfosuccinate 4g, antistatic agent 2g and water 1g was excellent in its characteristics. Optimum physical conditions of nylon filament treated with NSF-3 according to the number of revolution of oil roller were obtained at conditions of 5.5rpm in the number of revolution of oil roller, 1.21% of oil pick up, and denier 69.2D.

소방 구급대원을 위한 수용-전념치료 기반 직무 스트레스 관리 프로그램의 효과

이재운(Lee, Jae Woon),하재현(Ha, Jae-Hyun) 기본간호학회 2021 기본간호학회지 Vol.28 No.1

Purpose: The purpose of this study was to develop an acceptance-commitment therapy (ACT) based job stress management programs for firefighting paramedics and to examine the effects on the psychological flexibility, job stress (i.e. psychological, physiological and behavioral areas) and quality of life. Methods: This study consisted of a pre-test-posttest for a nonequivalent control group design. Participants were 45 firefighting paramedics working at two fire stations located in specific areas (experimental group: 22, control group: 23). The experimental group received the ACT based job stress management program twice a week for a total of 3 weeks. The study was carried out from August 12 to 31, 2019, and data were analyzed using IBM SPSS/WIN 25.0 with a x2 test, Fisher"s exact test, and independent t-test. Results: The differences between experimental and control groups were statistically significant for psychological flexibility (t=4.91, p<.001), psychological job stress (t=-6.10, p<.001) and quality of life (t=3.78, p<.001). However, physiological stress (t=-1.91, p=.063) and behavioral stress (t=-1.18, p=.243) were not significantly different between the two groups. Conclusion: The results of this study suggest that ACT based job stress management program can be used as an effective community mental health nursing intervention to improve the psychological flexibility, psychological job stress and quality of life of firefighting paramedics.