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

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.  

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)

Relationship between major risk factors, and major diseases

WIP ​Based on TAble 1 Jackson 2014 article

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

Hannon and Ruth Modeling Dynamic Biological Systems p67 adapted to Bond Graph Kinetic Modeling Metabolic Map Layout of insight IM-855 See also IM-2235 for unfolding version

Detail from Incorporating organizational factors into Probabilistic Risk Assessment(PRA) of complex socio-technical systems: A hybrid technique formalization article. See full overview at  insight 

From David Rees PhD dissertation "Developing a Theory of Implementation for Better Chronic Health Management" Health Services Research Centre, Victoria University of Wellington, New Zealand

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.

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

Mind map example of a medication management project.

See also IM-692 for CLD

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

WIP Thyroid HPA axis dynamics based on Kohanin 2022 article and Ch3.5 of Uri Alon's System Medicine book. A series of secrete and grow physiological circuits 

This model shows the Pharmaceutical New Drug Pipeline based on drug release, approval and patent expiry. This pipeline is then linked to patients switching from older drugs to newer drugs based on proven indications and marketing (indication creep). Based on work by Mark Heffernan on the Australian Pharmaceutical Benefits Scheme for drug subsidy.Conference paper and Larger ithink model

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 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.

This simulation is far from complete.

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

Simplest ED Model for Weekend  ED Performance with 1 ED area IM-11079  Ward net discharges are extended with Ward and Waitlist inflow and outflow details (informed by IM-7981) WIP

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

WIP for proposal

version of Suicide 4 insight  focussed on PTSD in Veterans