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Visar resultat 1 - 5 av 16 avhandlingar som matchar ovanstående sökkriterier.

1. 1. The Skorohod problem and weak approximation of stochastic differential equations in time-dependent domains

   Författare :Thomas Önskog; Kaj Nyström; Leif Persson; Johan Tysk; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Skorohod problem; weak approximation; time-dependent domain; stochastic differential equations; parabolic partial differential equations; oblique reflection; stopped diffusions; Euler scheme; adaptive methods; sensitivity analysis; financial derivatives; Greeks ; MATHEMATICS; MATEMATIK; Mathematics; matematik;

   Sammanfattning : This thesis consists of a summary and four scientific articles. All four articles consider various aspects of stochastic differential equations and the purpose of the summary is to provide an introduction to this subject and to supply the notions required in order to fully understand the articles. LÄS MER

3. 2. Overcoming inertia in medical education

   Författare :Carl Savage; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Adaptive Reflection;

   Sammanfattning : Introduction: Medical education continually demonstrates difficulties in keeping up with and preparing students for the evolving demands of patients, practice, and society. This is not due to a lack of effort: Change without reform runs rampant. Analyzing these efforts reveals a tendency to fragment and focus on planning and designing solutions, i. LÄS MER

4. 3. Adaptive finite element/difference methods for time-dependent inverse scattering problems

   Författare :Larisa Beilina; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : In this thesis we develop adaptive hybrid finite element/difference methods for inverse time-domain acoustic and elastic scattering, where we seek to find the location and form of a (small) unknown object inside a large homogeneous body from measured wave-reflection data. We formulate the inverse problem as an optimal control problem, where we seek to reconstruct unknown material coefficients with best least squares wave fit to data. LÄS MER

5. 4. Complex methods of inquiry: structuring uncertainty

   Författare :PETER BEDNAR; Institutionen för informatik; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; information system; Contextual Analysis; Contextual Dependencies; Systems Approaches; Systems Thinking; Organizational change; Complex adaptive systems; Uncertainty management; Organizational Emergence; Change Management; Organizational Learning; Human Activity Systems;

   Sammanfattning : Organizational problem spaces can be viewed as complex, uncertain and ambiguous. They can also be understood as open problem spaces. As such, any engagement with them, and any effort to intervene in order to pursue desirable change, cannot be assumed to be just a matter of ‘complicatedness’. LÄS MER

7. 5. Understanding in Healthcare Organisations- a prerequisite for development

   Författare :Eva Henriksen; Bengt Fridlund; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Health services research; understanding; elderly care services; healthcare organisations; complex adaptive system; gender; power; care structures; care processes and care outcomes; Hälso- och sjukvårdsforskning; Health and medical services in society; Hälso- och sjukvård i samhället; Hälso- och sjukvårdsforskning; Health Care Research;

   Sammanfattning : This study proposes that poor understanding of the structures, processes and outcomes of organisations seriously hampers collaboration between professional groups in care organisations. Three care settings were investigated: follow-up of patients with heart disease, an intensive care unit and care services for older people. LÄS MER