Sources of Policy Resistance. From article Sterman, John D.  Learning from Evidence in a Complex World Am J Public Health 2006 96: 505-514. See also fighting complexity IM-1955

From FIg.2 Past the Tipping Point:THe Persistence of Firefighting in Product Development by Nelson Repenning, Paulo Goncalves and Laura Black. Calif. Mgt. Review 43(4) p44-63 (2001). Also  From William E. Novak and  Linda Levine CMU SEI Sept 2010 Success in Acquisition: Using Archetypes to Beat the Odds paper and see webpage

This is a simpler version of Insight 649 showing the flow of Older People among the Community Hospital and Aged Care Residences

WIP Stock Flow representation of Panarchy Adaptive Cycles

Here we have a basic SEIR model and we will investigate what changes would be appropriate for modelling the 2019 Coronavirus.

The initial parametrization is based on the suggested current data. The initial population is set for Catalonia.

From Stephen Toulmin's Book The Uses of Argument Cambridge University Press 2003. See wikipedia  Also Francis Miller Claim Hexagon 2025 web article

An adaptation of the URBAN1 Model from Navid Ghaffarzadegan, John Lyneis and George P Richardson's How small system dynamics models can help the public policy process. System Dynamics Review 27: 22-44 (2011) Researchgate link  and eolss synopsis based on LA Alfeld and AK Graham's Introduction to Urban Dynamics 1976. Also p 195 (Dynamo Model Listing).

An element of Perspectives: The Foundation of Understanding and Insights for Effective Action. Register at http://www.systemswiki.org/

Black and white Unfolding Stock and flow map version of IM 1498

ithink example from isee systems using receptors

Translated from Hormone.stm in Dynamic Modeling in the Health Sciences James L hargrove, Springer 1998, Ch 24 p255-261, by Mark Heffernan.

Jack Homer's model via ithink and Mark Heffernan.  From Jack's SDR  paper Worker burnout: a dynamic model  See IM-641 for the Causal loop diagram

WIP

This is a launchpad for patient flow insights for flows through the emergency department and hospital, including the broader community context. It also includes links to other insights relevant to ED flow improvement.