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 t

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/

 Adam Smith's The Invisible Hand: The Feedback Structure of Markets. From Sterman JD Business Dynamics p170 Fig 5-26. A price-mediated resource allocation system..

Adam Smith's The Invisible Hand: The Feedback Structure of Markets. From Sterman JD Business Dynamics p170 Fig 5-26. A price-mediated resource allocation system..

 Addition of glucagon hormone action to control glucose homeostasis extended from  IM-586

Addition of glucagon hormone action to control glucose homeostasis extended from IM-586

SD reformulation of  jama psychiatry article  mason2017 on neurocomputational model of mood instability and reward dysregulation in bipolar disorder
SD reformulation of jama psychiatry article mason2017 on neurocomputational model of mood instability and reward dysregulation in bipolar disorder
 Forcings and feedbacks based on Tom Fiddaman, James Hansen and other feedback and cycle diagrams

Forcings and feedbacks based on Tom Fiddaman, James Hansen and other feedback and cycle diagrams

Based on Chris Argyris 2010  Book Organizational Traps  Oxford University Press, built around  Insight 619  on single and double loop learning
Based on Chris Argyris 2010 Book Organizational Traps Oxford University Press, built around Insight 619 on single and double loop learning
 This common archetype of systems that include relapse or recidivism allows exploration of the unintended effects of increasing upstream capacity and swamping downstream capacity. The increase in the relapse rate eventually returns to swamp upstream capacity as well. A social welfare example, based

This common archetype of systems that include relapse or recidivism allows exploration of the unintended effects of increasing upstream capacity and swamping downstream capacity. The increase in the relapse rate eventually returns to swamp upstream capacity as well. A social welfare example, based on a TANF case study, from How Small System Dynamics Models Can Help the Policy Process. N. Ghaffarzadegan, J. Lyneis, GP Richardson. System Dynamics Review 27,1 (2011) 22-44 abstract Conference version here

Based on Nate Osgood's April 2014 Singapore Presentation  Youtube video  and Lyle Wallis material Gojii at  DecisioTech  See also  Complex Decison Technologies IM  as a more polished version
Based on Nate Osgood's April 2014 Singapore Presentation Youtube video and Lyle Wallis material Gojii at DecisioTech See also Complex Decison Technologies IM as a more polished version
 Rich picture CLD of Tradeoffs in Responses to Work Pressure in the Service Industry by Rogelio Oliva California Mgt Review 2001 43(4) 26-43  paper

Rich picture CLD of Tradeoffs in Responses to Work Pressure in the Service Industry by Rogelio Oliva California Mgt Review 2001 43(4) 26-43 paper


How many hospital beds will we need over the next 20 years? WIP based on HDWA work esp Compile14. A top down approach from the state level.
How many hospital beds will we need over the next 20 years? WIP based on HDWA work esp Compile14. A top down approach from the state level.
 Here we have modified the SIR model of Insight 584 by adding an additional stock of Exposed people, who become Infective after an incubation period.

Here we have modified the SIR model of Insight 584 by adding an additional stock of Exposed people, who become Infective after an incubation period.

 From Adapting ‘Agility’ to Healthcare Service Delivery , by Tom Rust, Khalid Saeed, Isa Bar-On, Oleg Pavlov  Paper  from July 2013 System dynamics Conference Cambridge MA and also 2012 Conference  paper   Could be extended by adding dynamics described in  going solid insight
From Adapting ‘Agility’ to Healthcare Service Delivery, by Tom Rust, Khalid Saeed, Isa Bar-On, Oleg Pavlov Paper from July 2013 System dynamics Conference Cambridge MA and also 2012 Conference paper  Could be extended by adding dynamics described in going solid insight
 Part of Urea Kinetic model for Clearance Experiments

Part of Urea Kinetic model for Clearance Experiments

  Coping but not coping in health and social care: masking the
reality of running organisations beyond safe design capacity. From Eric Wolstenholme Syst. Dyn. Rev. 23, 371–389, (2007)  abstract . See also  IM-1010  for unfolding CLD version. This is a cascade of swamping structures see  IM-1769

Coping but not coping in health and social care: masking the reality of running organisations beyond safe design capacity. From Eric Wolstenholme Syst. Dyn. Rev. 23, 371–389, (2007) abstract. See also IM-1010 for unfolding CLD version. This is a cascade of swamping structures see IM-1769
 Simplified version of  IM-852   Erythropoiesis Stimulating Agents (ESA) Dosing in Anemia due to Renal Failure from Jim Rogers See Stock Flow Map   Insight 810  

Simplified version of IM-852  Erythropoiesis Stimulating Agents (ESA) Dosing in Anemia due to Renal Failure from Jim Rogers See Stock Flow Map  Insight 810 

 A causal loop diagram of thermostat action including conversions between heat and temperature and outside temperature. The simulation model is at Insightmaker 393

A causal loop diagram of thermostat action including conversions between heat and temperature and outside temperature. The simulation model is at Insightmaker 393

 Working model of Erythropoiesis and Erythropoiesis Stimulating Agents (ESA) Dosing in Anemia due to Renal Failure from Jim Rogers See Stock Flow Map   Insight 810   and Simpler Dosing Model at  IM-26182

Working model of Erythropoiesis and Erythropoiesis Stimulating Agents (ESA) Dosing in Anemia due to Renal Failure from Jim Rogers See Stock Flow Map  Insight 810  and Simpler Dosing Model at IM-26182

WIP notes on Stress and Abuse, based on integrating cycles of alienation, emotional regulation in brain development, addiction, and violence/abuse, inspired by harry burns  keynote video  on Glasgow alienation due to housing estates. Peggy Thoits 2010 Stress and Health  article  added
WIP notes on Stress and Abuse, based on integrating cycles of alienation, emotional regulation in brain development, addiction, and violence/abuse, inspired by harry burns keynote video on Glasgow alienation due to housing estates. Peggy Thoits 2010 Stress and Health article added
See reference in diagram notes. WIP for Environment part of primary care regional model
See reference in diagram notes. WIP for Environment part of primary care regional model
 Shows the causal loop diagram of the flow of organs from donors to recipients to explore places to improve the transplant rate

Shows the causal loop diagram of the flow of organs from donors to recipients to explore places to improve the transplant rate

 Modified from  Mark Paich et al. 's book : Pharmaceutical product strategy. Fig 4.7 p 69. It formed the basis of a hypertension intervention discussion Aug-Sept 2010

Modified from Mark Paich et al. 's book: Pharmaceutical product strategy. Fig 4.7 p 69. It formed the basis of a hypertension intervention discussion Aug-Sept 2010

 Gavan Lintern's Decision Ladder of Cognitive states and processes associated with the Ladder of Inference  IM-351  

Gavan Lintern's Decision Ladder of Cognitive states and processes associated with the Ladder of Inference IM-351