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김윤선(Yoon Sun Kim),권수혜(Suhye Kwon),배지현(Jihyun Bae),이연향(Younhyang Lee) 고신대학교 전인간호과학연구소 2020 전인간호과학학술지 Vol.13 No.-
The aim of this paper was to clarify the concept of powerlessness in the elderly. Methods: A literature search was conducted using RISS, MEDLINE, and CINAHL. Based on the Walker and Avant’s concept analysis method, the definition of powerlessness in the elderly, its attributes, antecedents, consequences, and empirical referents were discussed. Results: Through an integrative literature review and case analysis, the attributes of the powerlessness in the elderly were identified as 1) sense of loss, 2) sense of worthlessness, 3) avoidance, and 4) negative emotion. Conclusion: The results of this concept analysis will be of help for understanding of the concept of powerlessness in the elderly and provide theoretical basis for use of the concept in nursing practice for the elderly.
3차원 가상세계를 활용한 학교폭력 문제해결 활동의 효과와 개선점 : 활동이론을 적용하여
조영환,황매향,김윤강,김명섭,홍서연 이화여자대학교 교육과학연구소 2015 교육과학연구 Vol.46 No.4
Although teachers play an important role in preventing school bullying, there is a lack of educational programs to enhance the competencies of pre-service teachers regarding how to prevent and address school bullying. To improve the knowledge and self-efficacy of pre-service teachers about school-bullying challenges, this study developed an authentic problem solving activity in a 3D virtual world on the basis of activity theory. In this study, for four weeks, 36 pre-service teachers collaboratively solved school-bullying problems, conducted role-plays in a virtual world, and reflected on their activities. As a result, the participants significantly improved their knowledge (restorative justice) and self-efficacy to handle school bullying. This study also investigated the pre-service teachers’ perceptions of the strengths and weaknesses of the activity through analyzing quantitative and qualitative data with an activity system framework. The findings were discussed to improve the design of the problem-solving activity in the context of Korean pre-service teacher education.
피질하 혈관성 치매 환자에서 협착성 뇌혈관 병변의 의의 : 자기공명 혈관조영술과 양전자방출단층촬영을 이용한 연구 MR Angiography and ^(18)FDG-PET Study
유경호,이병철,마효일,김윤중,정지향,나덕렬,강연욱 대한치매학회 2004 Dementia and Neurocognitive Disorders Vol.3 No.1
Background and Objective:Subcortical vascular dementia (SVD) incorporates small vessel disease as the primary vascular etiology, represents in MRI by lacunar infarct and deep white matter lesions. In clinical practice, a number of SVD patients present with various vascular risk factors for large artery disease (LAD) i.e., old age, hypertension, and diabetes. However the current diagnostic criteria for SVD did not include angiographic findings as a key feature. Therefore we tried to find out the frequency of large artery disease in SVD and to elucidate whether the presence of LAD affects clinico-radiological manifestations of SVD. Methods:Thirty three patients fulfilling 'Research criteria for SVD' by Erkinjuntti from 17 study centers were recruited. Of these 33 patients, 21 who underwent comprehensive neuropsychological test battery, MRI ^(18)FDG-PET, and MR angiography were classified into two subgroups according to the patterns of MRI abnormality:white matter dominant (WM) type (n=5) and multiple lacunar (LC) type (n=16). Clinical and neuropsychological profile and ^(18)FDG-PET findings of 21 SVD patients with and without LAD were compared. Results: Twelve (57%) of 21 SVD patients had mild stenotic lesions in intracranial large arteries:4 in middle cerebral artery, 8 in posterior cerebral artery, and 4 in vertebrobasilarj artery. There were no differences in vascular risk factors, characteristics of cognitive dysfunctions, and ^(18)FDG-PET findings between SVD with and without LAD. Conclusions:Our results showed that the presence of mild degree of large artery stenosis did not affect the clinical., neuropsychological profile and cerebral metabolism in PET. Therefore, the current 'Research criteria for SVaD' by Erkinjuntti could be used to diagnose SVD as a homogenous clinical group regardless of angiographic abnormalities.