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

 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.

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.

BEACH Report 41 A decade of Australian general practice activity 2006–07 to 2015–16  book  University of Sydney 2016
BEACH Report 41 A decade of Australian general
practice activity 2006–07 to 2015–16 book University of Sydney 2016
 Concept map about how a thermostat works. Slightly adapted from  http://cmap.ihmc.us/docs/linkingwords.html  See how this changed after SD modelling at  IM-736

Concept map about how a thermostat works. Slightly adapted from http://cmap.ihmc.us/docs/linkingwords.html See how this changed after SD modelling at IM-736

 Simple rich picture causal loop diagram of single and double loop learning (DLL). See Individual Learning  IM-616   See also  DLL simulation insight

Simple rich picture causal loop diagram of single and double loop learning (DLL). See Individual Learning IM-616  See also DLL simulation insight

7 months ago
 The dynamics of health care spending, or why it keeps growing. Adapted from Fig 7.6 p154 of Sauwakon Ratanawijitrasin's PhD thesis SUNY Albany 1993 "The dynamics of health care finance: A feedback view of system behavior."

The dynamics of health care spending, or why it keeps growing. Adapted from Fig 7.6 p154 of Sauwakon Ratanawijitrasin's PhD thesis SUNY Albany 1993 "The dynamics of health care finance: A feedback view of system behavior."

5 8 months ago
 From Tarek KA Hamid's Book Thinking in Circles About Obesity Springer 2009

From Tarek KA Hamid's Book Thinking in Circles About Obesity Springer 2009

 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

WIP example of Services oriented multiscale computable narrative synthesis focussed on Coping carefully with diabetes
WIP example of Services oriented multiscale computable narrative synthesis focussed on Coping carefully with diabetes
 This is a stock flow map representation From Evans RG and Stoddardt GL  1990 paper Soc Sci Med 31(12)1347-63 , also published in a book by Evans, Barer and Marmor, Why are some people healthy and others not?: The determinants of population health See  IM-425  for a simulation.

This is a stock flow map representation From Evans RG and Stoddardt GL  1990 paper Soc Sci Med 31(12)1347-63 , also published in a book by Evans, Barer and Marmor, Why are some people healthy and others not?: The determinants of population health See IM-425 for a simulation.

 
 Barry Richmond's model describing behavior and anxiety theory for the Milgram experiment. Richmond, B. (1977). “Generalization with Individual Uniqueness: Modeling the Milgram Experiments.” Technical Report D-2508-2, System Dynamics Group, Sloan School of Management, MIT. 
  Personal versus Situa

Barry Richmond's model describing behavior and anxiety theory for the Milgram experiment. Richmond, B. (1977). “Generalization with Individual Uniqueness: Modeling the Milgram Experiments.” Technical Report D-2508-2, System Dynamics Group, Sloan School of Management, MIT.

 Personal versus Situational Dynamics: Implications of Barry Richmond’s Models of Classic Experiments in Social Psychology by James K. Doyle, Khalid Saeed, Jeanine Skorinko Department of Social Science and Policy Studies Worcester Polytechnic Institute 2008

See also CLE Class Notes 2014

A general model of flows between hospital and the community. An expanded version is at  IM-623
A general model of flows between hospital and the community. An expanded version is at IM-623
 Regulation of resource allocation to service in response to service quality. A non-price-mediated resource allocation system. From Sterman JD Business Dynamics p172 Fig 5-27

Regulation of resource allocation to service in response to service quality. A non-price-mediated resource allocation system. From Sterman JD Business Dynamics p172 Fig 5-27

Shows the flow of organs from donors to recipients to explore places to improve the transplant rate
Shows the flow of organs from donors to recipients to explore places to improve the transplant rate
WIP From  zenker 2007  article  PLoS Computational Biology From Inverse Problems in Mathematical Physiology to Quantitative Differential Diagnoses
WIP From  zenker 2007 article PLoS Computational Biology From Inverse Problems in Mathematical Physiology to Quantitative Differential Diagnoses
 From Stewart Brand see Wikipedia Also called Shearing Layers

From Stewart Brand see Wikipedia Also called Shearing Layers

 Based on Ransohoff DF, McNaughton Collins M, Fowler FJ. Why is prostate cancer screening so common when the evidence is so uncertain? A system without negative feedback. Am J Med. 2002;113:663-7. See  IM-15991  for a generic Stock Flow Map

Based on Ransohoff DF, McNaughton Collins M, Fowler FJ. Why is prostate cancer screening so common when the evidence is so uncertain? A system without negative feedback. Am J Med. 2002;113:663-7. See IM-15991 for a generic Stock Flow Map

 Upgrade of Kermack–McKendrick Epidemic SIR Infectious Disease Model (circa 2015) - Metrics by Guy Lakeman   This is a simple SIR infectious diseases 3 stock model with Susceptibles, Infectives and Recovereds stocks. In the initial description the R signified Removed and could include Deaths, Recove

Upgrade of Kermack–McKendrick Epidemic SIR Infectious Disease Model (circa 2015) - Metrics by Guy Lakeman

This is a simple SIR infectious diseases 3 stock model with Susceptibles, Infectives and Recovereds stocks. In the initial description the R signified Removed and could include Deaths, Recovered with immunity to infection (Resistant) or those who had fled the epidemic. Note the need to initiate the epidemic by adding a pulse of a single infected person at time 0.

Addition of a slider for susceptibles is equivalent to accumulated total cases

SARS, MERS AND COVID are similar virus types only differing in their sub genus

The COVID outbreak has reached 150,000 infected people

This simulation allows an attempt at predicting how long the virus will persist and its longevity dependence on its high speed massive infection numbers that have reached pandemic proportions

SARS reached 8,000 infected total and ran for 9 months before stopping

MERS 2012 is still killing 8 years later with patients dying even after using interferon to try and cure them

 Causal Loop Diagram of the Dynamics of Emergency Department Crowding Initial View from the waiting room 

Causal Loop Diagram of the Dynamics of Emergency Department Crowding Initial View from the waiting room