• 중환자간호학회지
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• 제17권2호
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• pp.12-24
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• 2024

Purpose : This study aimed to identify factors influencing the quality of life of family caregivers of intensive care unit (ICU) patients. Methods : We conducted a study using a cross-sectional design. The study involved 109 family caregivers of ICU patients at a university-affiliated hospital in Gyeonggi-do, South Korea. Data were collected through self-report questionnaires between July 2020 and April 2021 and analyzed using descriptive statistics, independent t-tests, one-way ANOVA, Pearson's correlation coefficients, and multiple regression analysis. Results : The study revealed significant differences in quality of life based on economic status (F=11.63, p<.001), cohabitation with patients (t=-2.04, p=.044), sleep duration after patient's admission to the ICU (t=-2.48, p =.025), and subjective health status (F=30.06, p<.001). There were significant negative correlations observed between quality of life and post-traumatic stress symptoms (r=-.38, p<.001) as well as caregiver burden (r=-.46, p<.001). Factors affecting quality of life were subjective health status, economic status, and caregiver burden (adj. R²=0.52, F=15.64, p<.001). Conclusion : These findings underscore the need to develop and implement intervention programs tailored to the health conditions and economic status of family caregivers, with a focus on alleviating caregiver burden. Such initiatives are essential to ultimately improve the quality of life for family caregivers of ICU patients.

• 반도체디스플레이기술학회지
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• 제18권1호
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• pp.105-111
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• 2019

The TADF (Thermally Activated Delayed Fluorescence)-based OLED patents were analyzed and 4410 of patents were selected at the first step. And 975 patents were screened at second step. Finally, 39 key patents were selected. Patent qualitative analysis was performed in these patents to find which of the four property (lifetime, efficiency, color purity, driving voltage) of TADF was improved. Also, the variation of the hosts and dopants in patented TADF material were surveyed and their combination was analyzed. According to the analysis of the variation and the combination, some of TADF compounds were used as an assistant dopant to transfer energy. In addition, it tended to transfer energy by forming exciplex that shows TADF characteristics. These were similar to the mechanism of the introduced hyper fluorescence and could solve the inherent TADF problems. Finally, patent citation network was illustrated to visualize the patent citations and citations relationship of the major applicants in the current TADF-based OLED technology. The leading patent applicant organization was revealed as Idemitsu Kosan, Semiconductor Energy Laboratory, UDC, Princeton University, Merck and Nippon Steel & Sumikin Chemical, which had lots of reference patents 559, 524, 477, 310, 258, and 167, respectively.

• 임상간호연구
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• 제16권1호
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• pp.95-105
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• 2010

Purpose: The purpose of this study was to examine the difference between direct and indirect nursing activity times according to the grade of nursing management fee. Methods: The subjects of this study were 324 working nurses at the time of 3rd grade and 319 working nurses at the 2nd grade of nursing management fee in one university hospital. Nursing activity time was measured in April and May, and in September and October of 2008 for comparison. The data were analyzed by SPSS win using frequency and t-test. Results: Direct nursing care activity time per one patient was significantly higher at 2nd grade than 3rd grade in day shift (t=-2.55, p=.012). Direct nursing care workload per one nurse was significantly lower at 2nd grade than 3rd grade in evening shift (t=2.21, p=.030), whereas indirect nursing care workload was lower at 2nd level in night shift (t=2.43 p=.016). Conclusion: The findings from this study showed that higher nurse-to-patient ratio can provide greater amount of direct nursing care activity for the patient. Also, it decreased workload of nurses. The higher nurse-to-patient ratio will be beneficial for promoting quality of nursing care as well as decreasing nurse's heavy workload.

• 융합정보논문지
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• 제11권10호
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• pp.171-181
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• 2021

본 연구는 코로나19로 인한 대학의 원격수업이 장기화하고 교수자와 학습자의 어려움이 계속됨에 따라, 여러 기술이 결합 된 기술융합 부문 공업계 대학 교수자와 학습자의 인식 파악을 통하여 개선 방안을 도출하고자 하였다. 이를 위해 2020학년도 2학기 종료 시기에 자동차 계열 교수와 학생들을 대상으로 온라인 설문조사를 실시하였다. 설문조사 분석 결과, 교수와 학생은 온라인 수업의 장점 측면에 대해서는 시공간의 자유로움, 반복 학습 가능, 재활용 등 유사한 인식을 하는 것으로 나타났다. 애로사항 측면에서는 학생은 현장감 부족으로 학습몰입 떨어짐을, 교수와 학생 모두는 상호작용의 어려움을 상대적으로 크게 느끼는 것으로 나타났다. 본 연구는 기복이 있는 코로나 상황과 코로나 이후 공업계 대학의 온라인 교육에 대하여 대학 정책지원에 관한 제언과 기본자료를 마련한다는 의의가 있다.

• 대한약학회:학술대회논문집
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• 대한약학회 2001년도 Proceedings of International Convention of the Pharmaceutical Society of Korea
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• pp.167.1-167.1
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• 2001

• 한국임상약학회지
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• 제33권4호
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• pp.242-253
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• 2023

Background: Arrhythmia due to QT prolongation is one of the most serious adverse events with drug interactions in the elderly. This study aimed to examine the incidence of arrhythmia in Korean elderly patients who administered both cytochrome P450 3A4 (CYP3A4) substrates and inhibitors. Methods: Patients using CYP3A4 substrate and inhibitor were selected from the 2017 elderly patient dataset (the Korean Health Insurance Review and Assessment Service - Aged Population Sample). Selection criteria were patients with a medication possession ratio over 80%, medication duration of at least 7 days, and a follow-up period of 3 months or more. The patient's basic information is age, gender, health insurance type, and comorbidities. The top 50 drug pairs and comorbidity with high-incidence arrhythmia were presented. Results: In patients with drug combinations for over 7 days, there were 981 incidences of arrhythmia, and 351 incidences in those with combinations for over 30 days. The comorbidities of congestive heart failure and myocardial infarction had a significant association with incidence of arrhythmia. Among patients with 7 days or longer, the drug pairs [substrates-inhibitors] with significant adjusted odds ratio (aOR) were [propranolol-cimetidine] (aOR, 2.25; 95% confidence interval [CI], 1.66-3.04). Among patients with 30 days or longer, the drug pairs with significant aOR were [tramadol-amiodarone] (aOR, 2.87; 95% CI, 1.97-4.19). Conclusions: In elderly patients, the incidence of arrhythmia was high with drug interactions of CYP3A4 substrates and inhibitors. The comorbidity of congestive heart failure was the risk factor.

• 원자력산업
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• 제11권2호통권96호
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• pp.47-49
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• 1991

• 인재니움
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• 제5권1호
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• pp.17-19
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• 1998

• 대학교육
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• 통권150호
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• pp.108-117
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• 2007

한국대학교육협의회는 11월 8일(목) 홍익대학교에서 대교협, 전국대학기획실(처)장협의회,한국고등교육정책학회의 공동주최로 제23회 대학교육 정책포럼을 개최하였다. 이 포럼은 차기정부의 고등교육경쟁력 제고방안이라는 주제로 서정화 홍익대 교수의 기조발표, 강병운 대교협 고등교육연구소장의 주제발표 및 신승호 강원대 기획처장, 김민구 아주대 기획처장, 신정철 서울대 교수, 서수용 한국대학신문 뉴스본부장, 정일환 대구가톨릭대 교수의 토론으로 진행되었으며 "대학교육"에서는 이 중 기조발표 내용을 게재한다.

• 반도체디스플레이기술학회지
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• 제16권2호
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• pp.94-97
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• 2017

Amorphous Si has been used for data processing circuits in flat panel displays. However, low mobility of the amorphous Si is a limiting factor for the data transmission speed. Metal oxides such as ZnO have been studied to replace the amorphous Si. ZnO is a wide bandgap (3.3 eV) semiconductor with high mobility and good optical transparency. When ZnO is grown by sputtering with $O_2$ as an oxidizer, there can be many ion species arising from $O_2$ decomposition. $O^+$, $O_2{^+}$, and $O^-$ ions are expected to be the most abundant species, and it is not clear which one contributes to the ZnO growth. We applied alternating substrate voltage (0 V and -70 V) during sputtering growth. We studied changes in transistor characteristics induced by the voltage switching. We also compared ZnO grown by dc and rf sputtering. ZnO film was grown at $450^{\circ}C$ substrate temperature. ZnO thin-film transistor grown with these methods showed $7.5cm^2/Vsec$ mobility, $10^6$ on-off ratio, and -2 V threshold voltage.