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개인-환경적합성과 조직성과 간의 관계에서 긍정심리자본의 매개효과: 중소 인테리어기업 서비스직 종사자를 중심으로
이민호,박윤주 대한산업경영학회 2026 산업융합연구 Vol.24 No.4
This study examines the mediating role of positive psychological capital in the relationship between person–environment fit and organizational performance among service employees in small interior design firms. Survey data from 386 employees were analyzed using structural equation modeling (SPSS 23.0 and AMOS 21.0). The results show that all dimensions of person–environment fit—person–organization, person–job, person–supervisor, and person–coworker fit—have significant positive effects on positive psychological capital, which in turn significantly enhances organizational performance. Furthermore, positive psychological capital partially mediates the relationship between person–environment fit and organizational performance. These findings highlight the importance of jointly managing person–environment fit and psychological capital to improve organizational performance in small and medium-sized enterprises.
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희소 시스템을 위한 희소 인식 인접 투사 Least Mean Mixed-norm 알고리즘
이민호,조태성,박부견 대한전자공학회 2022 전자공학회논문지 Vol.59 No.5
본 논문에서는 적응형 필터에서 사용되는 희소 시스템 식별을 위한 희소 식별 인접 투사 least mean mixed-norm (SAP-LMMN) 알고리즘을 제안한다. 제안하는 알고리즘은 희소성 페널티를 갖는 norm과 norm의 혼합 norm의 비용 함수로부터 유도된다. 우리는 희소 페널티로 norm 또는 norm을 사용하였고, 두 norm으로부터 유도된 zero attracting 항들은 적응형 필터 계수의 업데이트 과정에서 계수의 희소성을 유발하여 수렴을 가속한다. 제안하는 알고리즘의 성능을 검증하기 위해 희소 시스템 식별 시나리오에서 시뮬레이션을 진행한다. 음향 반향 제거 시스템 시뮬레이션을 통해 제안한 알고리즘이 기존의 알고리즘들보다 우수한 성능을 가진다는 것을 보인다.
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Incidence, Diagnosis and Prognosis of Cardiac Amyloidosis
이민호,Seung-Pyo Lee,Yong-Jin Kim,손대원 대한심장학회 2013 Korean Circulation Journal Vol.43 No.11
Background and Objectives: Cardiac involvement is frequent in systemic amyloidosis and is the most important determinant of the clinical outcome. The aims of this study were to assess the incidence and prognosis of cardiac amyloidosis and discuss the diagnostic issues related to cardiac amyloidosis. Subjects and Methods: We retrospectively studied all patients diagnosed with systemic amyloidosis who presented to our institution from January 1999 to December 2011. Results: Of the 129 patients with systemic amyloidosis, cardiac amyloidosis was diagnosed in 62 patients. At the 3 years’ follow-up of the patients with systemic amyloidosis, there was a statistically significant difference in mortality between patients with cardiac amyloidosis and the rest of the patients (58.1% vs. 37.3%, p=0.008). In the Cox proportional hazard model, old age {hazard ratio (HR) 18.336, p=0.006}, elevation of cardiac troponin I (cTNI) (HR 13.246, p=0.020), left ventricular (LV) systolic dysfunction (HR 5.137, p=0.041) and diastolic dysfunction (HR 64.595, p=0.022) were independently associated with survival in cardiac amyloidosis. In the diagnosis of monoclonal gammopathy, serum or urine protein electrophoresis was not sensitive enough to be used clinically compared to serum free light chain assay (35.8% vs. 96.4%). Conclusion: In systemic amyloidosis, cardiac involvement was the most important determinant of the prognosis, and old age, elevation of cTNI, LV systolic dysfunction and diastolic dysfunction were independently associated with survival in cardiac amyloidosis.
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