Simplest ED Model for Daily ED Performance with 1 ED area rather than 2 in IM-10571. Currently runs over a weekend and calibrated roughly to Weekend Data.Ward net discharges are extended in IM-12414. The Master Version of this, with the story added is at IM-11936 Resplit into 2 areas at IM-15023

Initial attempt to reduce confusion about risk and odds ratios.

Level of biological organization linking cell level division and population level evolution

Dynamics of Emergency Room Crowding with treatment spaces. Here we investigate the effect of constrained spaces and ignore any changes in treatment time or staffing effects. Many of the consequences occur before treatment with potential arrivals being turned away and arrivals leaving without being treated.  

WIP Simplified Patient Flow map of features in a SD simulation model of performance of a City Hospital over 5 years. Built after a Regional 20 year planning model IM-10290 The simulation is a large ithink model built by Mark Heffernan

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

WIP Patient Flow improvement strategies for a City Hospital with 3 years historical data and two year planning horizon. Built after a Generic Teaching Hospital Model IM-10346 A simplified stock flow map is at IM-399

An exploration of interactions among 'fuzzy' qualitative concepts that interact to produce either tolerance or violent conflict. ​Z509 p43-49 System Zoo 3 by Hartmut Bossel.

The Dynamics of Human Service Delivery General Theory from the Book by Levin, Roberts, Hirsch et al. Ballinger 1975 ISBN 0-88410-132-0 See IM-621 for rich picture version

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.

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

Simple rich picture causal loop diagram of single and double loop learning including experiential learning concepts. Launchpad for Learning

See stella video for population example WIP Simplest Innovation diffusion model from Sterman Business Dynamics Ch9, with Correlation coefficients added, from Taylor TRB et al. (2010)  Improving model understanding using statistical screening WSC paper See also System Dynamics Review 26 (1) p 73-87 and earlier 2005 SDR paper with CCtemplateExcel

Revised unfolding story of stock-flow feedback map of suicide prevention intermediate version focussed on regional mental health services ( according to Mark heffernan's ithink /STELLA simulation model Aug 2017  Note private WIP version of this is at IM-77395 (private)

Based on Psychological Medicine Dec 2015 article Depression as a systemic syndrome: mapping the feedback loops of major depressive disorder by A. K. Wittenborn, H. Rahmandad, J. Rick and N. Hosseinichimeh, mentioned here

WIP for LHN Individual Hospital O Month of October 2013 linking monthly NWAUs and same and overnight activities from ED and Elective Surgery (ES)

SD reformulation of jama psychiatry article mason2017 on neurocomputational model of mood instability and reward dysregulation in bipolar disorder

From Margaret Stringfellow's PhD thesis from Nancy Leveson's Engineering a Safer World

From p592 Doyle F et al.(2007) Journal of Process Control 17 571-594

abstract

WIP for regional integration based on NHPA and IHPA activities in Australia

version of Suicide 4 insight  focussed on PTSD in Veterans

From MIT ESD work (de Weck Ilities ) esp on Survivability (Medecki) http://bit.ly/HVsceb and Unarticulated Value (Ross) 2006 PhD pdf

Love affairs and Differential equations. From Michael J Radzicki (1993) Dyadic processes,tempestuous relationships, and system dynamics Syst. Dyn. Rev. 9 (1) :79-94 

From Brown and Heathcote's 2008 Paper on the simplest model of Choice ResponseTime , a Tutorial paper and a Workload capacity paper that estimates drift rate v for individuals with single and multiple targets