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This doctoral thesis in biomedical engineering deals with cardiac monitoring using the built-in extracorporeal blood pressure sensors of a hemodialysis machine. Patients treated with hemodialysis often suffer from cardiovascular disease. Despite this, cardiac monitoring is not routinely performed during dialysis treatment, since external devises required for such monitoring causes patient discomfo
Misplacement of electrodes during the recording of an electrocardiogram (ECG) can cause an incorrect interpretation, misdiagnosis, and subsequent lack of proper treatment. The purpose of this study was twofold: (1) to develop artificial neural networks that yield peak sensitivity for the recognition of right/left arm lead reversal at a very high specificity; and (2) to compare the performances of
From a finite-size scaling (FSS) theory of cumulants of the order parameter at phase-coexistence points, we reconstruct the scaling of the moments. Assuming that the cumulants allow a reconstruction of the free energy density no better than as an asymptotic expansion, we find that FSS for moments of low order is still complete. We suggest ways of using this theory for the analysis of numerical sim
The deformable templates method for track finding in high energy physics is reviewed and extended to handle multiple and secondary vertex positions. An automatized minimization method that handles different types of parametrizations is derived. It is based on the gradient descent method but modified with an explicit calculation of the natural metric. Also a simplified and more intuitive derivation
A novel algorithm for particle tracking is presented and evaluated. It is based on deformable templates that converge using a deterministic annealing algorithm. These deformable templates are initialized by Hough transforms. The algorithm, which effectively represents a merger between neuronic decision making and parameter fitting, naturally lends itself to parallel execution. Very good performanc
Do work units where bulling is present have more long-term sickness absence?Å. M. Hansen 1 2,*, M. B. Grynderup 1, K. Nabe-Nielsen, P. M. Conway 3, J. P. Bonde 4, A. H. Garde 1 2, L. Kaerlev 5 6, E. G. Mikkelsen 7, R. Persson 8, R. Rugulies 2, A. Høgh 31Deparment of Public Health, University of Copenhagen, 2National Research Centre for the Working Environment, 3Department of Psychology, University
Conflict in organizationsBullying and harassmentTh-SYM-655-6Conflict frequency as predictor of negative acts and being a target or perpetrator of bullying two years later.A. Hogh 1,*, E. G. Mikkelsen 2, Å. M. Hansen 3 4, R. Persson 5, P. M. Conway 61Department of Psychology, University of Copenhagen, Copenhagen, 2Gemzoe Consult, Aarhus, 3Public Health, UNIVERSITY OF COPENHAGEN, 4National Research Main Abstract Content: Purpose To investigate the association between conflict frequency and bullying at T1 and T2, moderation of individual conflict management styles and mediation of negative acts. Methodology Data from the Workplace Bullying and Harassment cohort (2006-2008) were analysed cross-sectionally (n=3363) and longitudinally (n=1664). Measures: conflict frequency; three individual con
When do negative acts reflect experienced workplace bullying? Identifying optimal cut-off points on the Short-Negative Act Questionnaire.
No Trace of Accelerator takes as its starting point the mysterious incident of a series of apparently spontaneous fires that broke out in an isolated French town in the mid-1990s. The cause of the fires remained unexplained for some months, a period when all kinds of fear, panic and superstition gripped the small community. The fires were eventually explained, but the reaction of the towns-people
Holding in her mind Dorothea Tanning’s painting Some Roses and their Phantoms(1952) and its sickening presentation of objects as between states of being, Wardill made a film that also hovers between definitions. The architecture of the Gulbenkian auditorium in Lisbon, its colours and sense of being lost in time accompany us through a loop where a man wanders the building at night, followed by some
