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- 저자 : Haena Nam (검색결과 6 건)
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Nam, Ki-Ho,Im, Yong-O.,Park, Hye Jin,Lee, Haena,Park, Junbeom,Jeong, Sunho,Kim, Seung Min,You, Nam-Ho,Choi, Jae-Hak,Han, Haksoo,Lee, Kun-Hong,Ku, Bon-Cheol Elsevier 2017 Composites science and technology Vol.153 No.-
<P><B>Abstract</B></P> <P>Direct spinning of carbon nanotube (CNT) fibers is a facile method to produce CNT fibers because of its high productivity and the simplicity of the spinning process from CNT aerogels. Directly spun CNT fibers, however, generally include amorphous carbon and weak shear interaction between tubes or bundles, thereby causing insufficient load transfer. Here, we report newly designed polyimide/reduced graphene oxide (PI/RGO)/CNT fiber composites in combination with polymer infiltration followed by photonic flash sintering on a time scale of 0.5 ms to overcome the critical drawbacks in directly spun CNT fibers. The mechanical performances of the CNT fibers were closely related to the junction strength in CNT bundles. In addition, PI can be interlocked with CNT bundles and effectively serve as a binder to link the GO and CNT fibers with strong interfacial interactions. The PI infiltrated CNT fibers showed the highest load transfer, resulting in a significantly enhanced increase of 83% in specific strength (1.1 N/tex) and a 477% increase in tensile strength (800 MPa) compared to pristine CNT fibers. Furthermore, the photonic sintered PI/RGO/CNT fibers improved electrical conductivity by over 244% (5.5 × 10<SUP>3</SUP> S cm<SUP>−1</SUP>) over pristine CNT fibers without deteriorating mechanical properties. The results demonstrate that the mechanical strength, modulus and electrical conductivity can be enhanced simultaneously by molecular-level coupling of polymer/graphene with CNT fibers via photonic flash sintering.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
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Development and Psychometric Evaluation of the Communication Competency for Patient Safety Scale
Haena Jang,Nam-Ju Lee 한국간호과학회 2021 한국간호과학회 학술대회 Vol.2021 No.10
Aims: The purpose of this study was to develop the Communication Competency for Patient Safety scale and test its psychometric properties. Methods: An item pool was developed based on the third domain of the safety competencies framework of the Canadian Patient Safety Institute; “Communicate Effectively for Patient Safety.” This domain of the safety competencies framework includes the essential communication competencies required for all health care providers to ensure patient safety. Each enabling competency of the domain was translated into Korean by a committee and classified into knowledge, skills, and attitudes according to the relevance of each item. The preliminary items were reviewed for allocation adequacy to knowledge, skills, and attitudes and content validity by nine expert panelists. The questionnaire was administered to 142 graduates of four nursing colleges to evaluate its psychometric properties. Results: The questionnaire consisted of 19 items. Exploratory factor analysis revealed a three-factor model, which included knowledge (5 items), skills (10 items), and attitudes (4 items), and explained 51.39% of the variance. Confirmatory factor analysis validated the structure of the scale (χ2=228.50, p<.001, RMSEA=.06, IFI=.93, TLI=.92, CFI=.93). Correlation analysis indicated that the Communication Competency for Patient Safety scale score was correlated with the Patient Safety Competency score (r=0.67, p<.001). The Cronbach’s α coefficients for the subscales ranged from .78 to .89. Conclusions: The Communication Competency for Patient Safety scale is a valid and reliable scale to measure nursing students’ and new nurses’ communication competencies to ensure patient safety.
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오류를 경험한 의료인에 대한 연구 동향 및 지원 시스템
장해나 ( Haena Jang ),이남주 ( Nam Ju Lee ) 서울대학교 간호과학연구소 2016 간호학의 지평 Vol.13 No.1
Purpose: The purpose of this study was to identify the current state of research on healthcare professionals who make medical errors, who are known as "second victims", and support systems for them. Methods: An extensive search was conducted in electronic databases, Google, and websites related to patient safety using search terms such as "second victims", "medical errors", "adverse events", and "sentinel events". Results: Research to date in Korea has rarely focused on healthcare professionals` experiences after making medical errors. Abroad, there are comprehensive and systematic reviews of the impact of medical errors on healthcare professionals, their coping responses, and support systems for these second victims. Additionally, several institutes related to patient safety provide official guidelines and accessible support systems to support second victims in the aftermath of medical errors, especially serious adverse events. Conclusion: The impact of medical errors on healthcare professionals is profound and complex. Although systematic support systems for second victims are imperative, this has been overlooked in Korea. Thus, more research about the experiences of healthcare professionals after medical errors needs to be conducted prior to developing support systems or programs. Additionally, further efforts are required to raise awareness of the necessity of supporting healthcare professionals in healthcare systems.
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간호학 교수의 환자안전 교육역량 강화를 위한 정보자원 시스템 개발 및 평가
이남주(Lee, Nam-Ju),안신애(Ahn, Shinae),이미선(Lee, Miseon),장해나(Jang, Haena) 한국간호행정학회 2020 간호행정학회지 Vol.26 No.5
Purpose: This study aimed to develop an educational informatics system for nursing faculty to improve their competencies in teaching patient safety and to evaluate the effectiveness of the system. Methods: We developed a system called, ‘Resource to Enhance Safety Competency and Utilize for Education’ (RESCUE) based on the World Health Organization Multi-professional Patient Safety Curriculum Guide, and it was implemented with full-time nursing faculty in 4-year nursing schools. A one-group pretest-posttest design was used for evaluation. A total of 46 nursing faculty members used the system during a 3-month period. The effects of the RESCUE were measured using a survey including patient safety teaching competency, system usability and user satisfaction. Data were analyzed using descriptive statistics and the Wilcoxon signed-rank test. Results: After using the RESCUE, participants showed a significant increase in self-confidence in teaching patient safety during lectures (Z=-3.61, p<.001) and practica (Z=-3.14, p=.002). Conclusion: The developed informatics system was shown to be effective in improving the self-confidence of nursing faculty in teaching patient safety. To effectively integrate patient safety topics into the curriculum, it can be helpful to utilize the educational materials provided in this study with various clinical cases.
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