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THE U-PROJECTIVE RESOLUTION OF MODULES OVER PATH ALGEBRAS OF TYPES A<sub>n</sub> AND Ã<sub>n</sub>
Baur, Karin,Mahatma, Yudi,Muchtadi-Alamsyah, Intan Korean Mathematical Society 2019 대한수학회논문집 Vol.34 No.3
In this paper we compute the U-projective resolution of kQ-modules where Q is quiver of type $A_n$ and ${\tilde{A}}_n$. The behavior of the sequence can be seen through its geometric representation.
Nutzi, Marina,Koch, Patricia,Baur, Heiner,Elfering, Achim Occupational Safety and Health Research Institute 2015 Safety and health at work Vol.6 No.4
Background: The aim of this study is to examine the prevalence of musculoskeletal complaints in Swiss operating room (OR) nurses, and to investigate how work-family conflict, work interruptions, and influence at work are related to lumbar and cervical back pain. Methods: Participants in this correlational questionnaire study included 116 OR nurses from eight different hospitals in Switzerland. Results: We found that 66% of the OR staff suffered from musculoskeletal problems. The most prevalent musculoskeletal complaints were lumbar (52.7%) and cervical pain (38.4%). Furthermore, 20.5% reported pain in the mid spine region, 20.5% in the knees and legs, and 9.8% in the hands and feet. Multiple linear regression analyses showed that work-family conflict (p < 0.05) and interruptions (p < 0.05) significantly predicted lumbar and cervical pain in OR nurses, while influence at work (p < 0.05) only predicted lumbar pain. Conclusion: These results suggest that reducing the work-family conflict and interruptions at work, as well as offering opportunities to influence one's workplace, help to promote OR nurses' health.
Marina Nützi,Patricia Koch,Heiner Baur,Achim Elfering 한국산업안전보건공단 산업안전보건연구원 2015 Safety and health at work Vol.6 No.4
Background: The aim of this study is to examine the prevalence of musculoskeletal complaints in Swiss operating room (OR) nurses, and to investigate how workefamily conflict, work interruptions, and influence at work are related to lumbar and cervical back pain. Methods: Participants in this correlational questionnaire study included 116 OR nurses from eight different hospitals in Switzerland. Results: We found that 66% of the OR staff suffered from musculoskeletal problems. The most prevalent musculoskeletal complaints were lumbar (52.7%) and cervical pain (38.4%). Furthermore, 20.5% reported pain in the mid spine region, 20.5% in the knees and legs, and 9.8% in the hands and feet. Multiple linear regression analyses showed that workefamily conflict (p < 0.05) and interruptions (p < 0.05) significantly predicted lumbar and cervical pain in OR nurses, while influence at work (p < 0.05) only predicted lumbar pain. Conclusion: These results suggest that reducing the workefamily conflict and interruptions at work, as well as offering opportunities to influence one’s workplace, help to promote OR nurses’ health.
Workflow Interruptions and Failed Action Regulation in Surgery Personnel
Elfering, Achim,Nutzi, Marina,Koch, Patricia,Baur, Heiner Occupational Safety and Health Research Institute 2014 Safety and health at work Vol.5 No.1
Background: Workflow interruptions during surgery may cause a threat to patient's safety. Workflow interruptions were tested to predict failure in action regulation that in turn predicts near-accidents in surgery and related health care. Methods: One-hundred-and-thirty-three theater nurses and physicians from eight Swiss hospitals participated in a cross-sectional questionnaire survey. The study participation rate was 43%. Results: Structural equation modeling confirmed an indirect path from workflow interruptions through cognitive failure in action regulation on near-accidents (p < 0.05). The indirect path was stronger for workflow interruptions by malfunctions and task organizational blockages compared with workflow interruptions that were caused by persons. The indirect path remained meaningful when individual differences in conscientiousness and compliance with safety regulations were controlled. Conclusion: Task interruptions caused by malfunction and organizational constraints are likely to trigger errors in surgery. Work redesign is recommended to reduce workflow interruptions by malfunction and regulatory constraints.
Workflow Interruptions and Failed Action Regulation in Surgery Personnel
Achim Elfering,Marina Nützi,Patricia Koch,Heiner Baur 한국산업안전보건공단 산업안전보건연구원 2014 Safety and health at work Vol.5 No.1
BackgroundWorkflow interruptions during surgery may cause a threat to patient's safety. Workflow interruptions were tested to predict failure in action regulation that in turn predicts near-accidents in surgery and related health care. MethodsOne-hundred-and-thirty-three theater nurses and physicians from eight Swiss hospitals participated in a cross-sectional questionnaire survey. The study participation rate was 43%. ResultsStructural equation modeling confirmed an indirect path from workflow interruptions through cognitive failure in action regulation on near-accidents (p < 0.05). The indirect path was stronger for workflow interruptions by malfunctions and task organizational blockages compared with workflow interruptions that were caused by persons. The indirect path remained meaningful when individual differences in conscientiousness and compliance with safety regulations were controlled. ConclusionTask interruptions caused by malfunction and organizational constraints are likely to trigger errors in surgery. Work redesign is recommended to reduce workflow interruptions by malfunction and regulatory constraints.
THE GENERAL ANNUITY CASE OF TIME VALUE OF MONEY: A PEDAGOGICAL APPROACH
Omar M Benkato,Mahmoud M Haddad,Michael N Baur,H Banarjee Rau People&Global Business Association 1996 Global Business and Finance Review Vol.1 No.2
Most finance and related textbooks implicitly assume -in the case of annuity- that the frequency of compounding and the number of payments per year are equal. In this paper; we provide more accurate general equations that permit the equality and the inequality of the number of compounding periods and the number of payments per year. The correct formulation is beneficial to practitioners, regulators and software developers working with annuities because the correct formulas are important in applications related to capital budgeting, pension funds, bond valuation, and bond portfolio immunization.