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80세 이상 급성기 뇌졸중 환자에게 시행하는 정맥내 혈전용해치료: 단일 기관 예비연구
조아현,이익성,한수정,손영민,김범생 대한뇌졸중학회 2010 Journal of stroke Vol.12 No.3
Background: Although the number of the elderly stroke patients increases, treatment with intravenous recombinant tissue plasminogen activator (rt-PA) is currently not recommended in the elderly. We investigated the safety and clinical outcome of the intravenous thrombolysis in the elderly. Methods: We consecutively enrolled patients who underwent intravenous rt-PA thrombolysis according to the treatment protocol based on the American heart association guidelines. The demographic data, initial national institutes of health stroke scale score and stroke subtype were assessed. The clinical outcomes were modified Rankin Scale (mRS) at 3 months. Symptomatic intracranial hemorrhage causing any neurological decline was evaluated. All clinical data were compared between patients who were 80 years or older and those less than 80 years. Results: Of the total 46 patients, 7 (15.2%) patients were 80 years or older. The baseline characteristics were comparable between both groups. Symptomatic hemorrhagic transformation was not different between both groups [0/7 (0%) vs. 3/39 (7.7%), P>0.999]. There was no difference in favorable outcome (mRS 0-2) and mortality between both groups [2/7 (28.6%) vs. 25/37 (67.6%), P=0.089, 1/7 (14.3%) vs. 4/37 (10.8%), P>0.999, respectively]. Conclusion: Symptomatic intracranial hemorrhage was not higher in the elderly and the favorable clinical outcome was comparable between the two groups. (Korean J Stroke 2010;12:102-105)
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조아현,박찬재,한찬훈 한국교육시설학회 2021 敎育施設 Vol.28 No.3
Speech information of teachers is transmitted to students in classrooms so that appropriate aural environment should be provided for academic purposes. Many researches have been undertaken for classroom acoustics, and acoustic standards of domestic classrooms were suggested based on the reverberation time and background noise level. However, these standards are suitable for middle and high schools and so not consider the auditory ability by ages. As a precedent research, the present study was begun to suggest an acoustic standard for lower grade elementary school classrooms with children under age 9 who have not normal auditory ability. In order to do this, acoustic performances of the lower grade classrooms were measured and compared with the general classrooms. Also, change of acoustic parameters depending on the desk layout was measured and analyzed. The measured acoustic parameters were background noise, signal to noise ratio, RT, STI, D, and IACC. As a result, it was found that background noise is exceed the standard of 35dB(A) at the schools along the road sides. Also, it was shown that most of acoustic parameters are higher in the classrooms built recently rather than the old classrooms. Generally, there are not much difference of acoustic parameters among the various desk layouts but, better acoustic performances are acquired at the center line and the seats near sound source. Also, Higher IACC was measured at the seats on the center line facing the source squarely.
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White Matter Hyperintensity in Ischemic Stroke Patients: It May Regress Over Time
조아현,김형렬,김우준,양동원 대한뇌졸중학회 2015 Journal of stroke Vol.17 No.1
Background and Purpose White matter hyperintensities (WMH) are frequently observed on MRI in ischemic stroke patients as well as in normal elderly individuals. Besides the progression of WMH, the regression of WMH has been rarely reported. Thus, we aimed to investigate how WMH change over time in patients with ischemic stroke, particularly focusing on regression. Methods We enrolled ischemic stroke patients who underwent brain MRI more than twice with at least a 6 month time-interval. Based on T2-weighted or FLAIR MRI, WMH were visually assessed, followed by semiautomatic volume measurement. Progression or regression of WMH change was defined when 0.25 cc increase or decrease was observed and it was also combined with visible change. A statistical analysis was performed on the pattern of WMH change over time and factors associated with change. Results A total of 100 patients were enrolled. Their age (mean±SD) was 67.5±11.8 years and 63 were male. The imaging time-interval (mean) was 28.0 months. WMH progressed in 27, regressed in 9 and progressed in distinctive regions and regressed in others in 5 patients. A multiple logistic regression model showed that age (odds ratio[OR] 2.51, 90% confidence interval[CI] 1.056-5.958), male gender (OR 2.957, 95% CI 1.051-9.037), large vessel disease (OR 1.955, 95% CI 1.171-3.366), and renal dysfunction (OR 2.900, 90% CI 1.045-8.046) were associated with progression. Regarding regression, no significant factor was found in the multivariate analysis. Conclusions In 21.5% of ischemic stroke patients, regression of WMH was observed. WMH progression was observed in a third of ischemic stroke patients.
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‘불완전한 관용’: 한국 옴니보어의 시민성과 탈물질주의
조아현 한국조사연구학회 2023 조사연구 Vol.24 No.3
This study investigates how Korean’s cultural consumption patterns, measured by omnivorousness, are linked to social/political attitudes and related behaviors. In Korean society, cultural omnivorousness is associated with citizenship and post-materialism value orientation. More specifically, Omnivores are more trusting to their family, friends, and neighbors than other individuals. They also tend to participate broader volunteer and civil activities, and show greater acceptance towards immigrant workers. Furthermore, they hold post-materialistic values, which include more progressive gender role attitudes and concerns for the environment. However, the study also found that Korean omnivores do not necessarily display more tolerant attitudes towards refugees and sexual minorities, nor do they align with the most politically liberal group within society. Several factors contribute to the incomplete political tolerance of omnivores, including the differentiation of political ideology and religion within the omnivore group, the intermingling of cosmopolitan outlook with nationalism and collectivism, and patriarchal societal norms that exclude sexual minorities. The study concludes that cultural choices are not solely determined by socioeconomic status but also reflect a broader internalized value system among individuals. It also emphasizes the importance of considering the specific societal context when examining the connections between cultural repertoires and social/political attitudes. 이 연구는 옴니보어성으로 측정되는 한국인의 문화 소비 패턴이 사회정치적 태도와 행동에 어떻게 연계되는지 조사한다. 한국 사회에서 문화적 옴니보어성은 전반적으로 높은 수준의 시민성과 탈물질주의 가치 지향에 결부된다. 구체적으로, 옴니보어는 다른 개인들보다 가족, 친구, 이웃에 대한 신뢰가 높고, 자원봉사활동과 시민참여활동에 더 적극적이며, 이주 노동자에게 호의적이다. 또한 이들은 진보적인 성역할 태도를 지원하며 환경 의식이 높다는 점에서 탈물질주의 가치를 보여준다. 그러나 이들은 난민과 성 소수자에 대해서 유의하게 관용적인 태도를 보여주지는 않는다. 또한 한국의 옴니보어 집단은 정치적으로 가장 진보적인 집단도 아니다. 한국 옴니보어의 정치적 관용을 불완전하게 만드는 요소들에는 옴니보어 내부에서의 정치적 성향 및 종교의 분화, 민족주의 및 집단주의와 혼합된 코즈모폴리터니즘, 그리고 성 소수자를 배제하는 가부장적 사회 규범이 포함된다. 이 연구는 개인의 문화적 선택이 단순한 사회경제적 지위의 산물이 아니라, 개인에게 내면화된 광범위한 가치체계를 재현한다는 점을 보여준다. 또한, 그러한 문화적 레퍼토리와 사회정치적 태도 사이의 연관성들은 구체적인 사회적 맥락에 따라 달라진다.
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조아현,유시진 서비스사이언스학회 2023 서비스연구 Vol.13 No.2
본 연구는 최근 새로운 고객 참여방식으로 자리매김한 고객 투표를 통한 마케팅 의사결정 방식에 주목하였다. 이는 서비스산업에서도 중요한 고객 임파워먼트 전략(Customer Empowerment Strategy, CES)의 하나인 선택형 임파워먼트 형태라고 할수 있다. 선택형 임파워먼트 중 투표방식의 장단점에 국한되어 있는 선행연구와는 달리 본 연구에서는 다수의 최종안이 선정되는상황을 상정하고, 고객이 하나의 후보에 투표하는 단수투표 시스템과 복수의 후보에 투표하는 다중투표 시스템 간의 차이를 고객의지속적 투표 참여 의사와 투표 참여 행태를 통해 분석하였다. 또한, 이러한 투표 시스템 간의 차이를 만드는 요인을 투표 결과의불확실성으로 보고 그 매개효과를 검증하였다. 연구 가설의 검증을 위해 사람과 상품을 대상으로 투표를 하는 두 개의 실험을진행하였으며, 다중선형회귀분석과 매개효과 분석을 실시하였다. 그 결과, 상품 투표의 경우 다중투표 시스템은 고객 참여의사와 전략적 투표 행태를 증가시키는 것으로 나타났으나, 사람에 대한 투표의 경우 전략적 투표 행태에만 유의한 영향을미치는 것으로 나타났다. 또한, 불확실성은 다중투표 시스템의 효과를 매개하지 않아 간접효과는 없는 것으로 나타났다. 본연구는 학술적으로 선택형 임파워먼트를 세분화시킴으로써 향후 연구에서 고객 참여 방식을 구체화 했다는 점과 실무적으로기업의 투표 시스템 선택에 방향성을 제시한다는 측면에서 기여점이 있다.
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