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굴패각 분말 함유 시멘트 복합체의 강도 및 미세구조 변화
이현비(Lee, Hyeonbi),김민욱(Kim, Min Ook) 한국콘크리트학회 2021 한국콘크리트학회 학술대회 논문집 Vol.33 No.2
본 연구에서는 굴패각 미분말 함유 시멘트 페이스트 시험체를 제작하여 시멘트 중량 대비 굴패각 미분말 치환율, 양생환경, 양생일에 따른 강도와 미세구조의 변화를 파악하기 위한 실험을 수행하였다. In this study, cement pastes containing oyster shell powder were prepared, and an experimental study was conducted to investigate the change in strength and microstructure according to the replacement rate of oyster shell fine powder, curing environment, and curing date.
요양보호사의 직무스트레스, 우울과 피로가 수면의 질에 미치는 영향
황은희,이현비 한국보건간호학회 2019 韓國保健看護學會誌 Vol.33 No.2
Purpose: The purpose of this study was to identify the effects of job stress, depression and fatigue on sleep quality of care workers employed in long-term care facilities. Methods: The participants were 213 care workers who worked in 11 long-term care facilities. The collected data was analyzed by descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient and multiple linear regression with using the SPSS 23.0 program. Results: We found that patient-related job stress was the greatest stressor among care workers’ job stresses. A significant difference in sleep quality was observed according to the self-perceived health status of the care workers. The care workers’ sleep quality was negatively correlated with job stress (r=-.16, p=.018), depression (r=-.31, p<.001) and fatigue (r=-.29, p<.001). The influencing factors of sleep quality were depression (β=-0.22, p=.001) and fatigue (β =-0.15, p=.047). Conclusion: It is necessary to improve the health status and sleep quality of care workers by developing and applying health promotion programs to reduce the depression and fatigue of the care worker. This will ultimately improve the quality of service care for the patients.
삼차신경통 환자의 감마나이프 수술 시 섹터블록 사용의 유용성 평가
정창영,백금문,우성호,김명준,황정호,이현비,김호성 (사)한국방사선산업학회 2018 방사선산업학회지 Vol.12 No.4
Sector block is not used for Gamma Knife surgery in patients with generalized trigeminal neuralgia but sector block is used to reduce the dose reaching the brain stem when the trigeminal ganglgia and the ‘Brain stem’, radiation sensitive tissue, are adjacent. In the Gamma Knife surgical plan of this study, a surgical plan was established using a Leksell Gamma Plan 11. 1.0 (Elekta Instrument AB, Sweden) with one patient (Block unused, Brain stem dose No volume over 12 Gy, Case 1) who did not need a sector block and four patients (Block unused, Brain stem dose 12 Gy or more, Case 2~5) with a sector block. Magnetic resonance images were obtained by MPRAGE T1 and CISS Respectively. When the trigeminal ganglion is in close proximity to the brain stem, the brain stem volume is decreased when the sector block is used, while the treatment time was increased. In conclusion, This Study evaluates the usefulness of the Sector block in brain stem through Gamma Knife surgery in trigeminal neuralgia, which is considered to be the most important factor for the Gamma Knife surgery.