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

A simple generic rich picture view of interactions among concerned people with needs services and resources and abilities (including learning), which can be used as a pattern for many individual health care insights.

From Peter Lacey's Whole Systems Partnership UK NHS ithink model

Prochaska's transtheoretical model (TTM) of behavior change. See also Agent Based VersionIM-11578

Kermack–McKendrick Epidemic SIR Infectious Disease Model - 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.

Also applies to finance and war

A Susceptible-Infected-Recovered (SIR) disease model with herd immunity and isolation policies.

Based on a book chapter by Rosemarie Sadsad based on her PhD Thesis. See also other Insights tagged Multiscale and Realist ( IM-3546 and IM-3834 are embedded here)

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

A Rich Picture Story representation of ED overcrowding based on Using system dynamics principles for conceptual modelling of publicly funded hospitals] by HJ Wong et al Journal of the Operational Research Society 63, 79-88 (January 2012) | doi:10.1057/jors.2010.164 Click the +view story on the bottom left

A Susceptible-Infected-Recovered (SIR) disease model

Extension of IM-14124 with an adjusted bed capacity stock. For backlog and services see IM-8382

Kidney replacement therapy dynamics: causal loop diagram of the kidney dialysis and transplant model

WIP representation of thinking feeling acting and interacting

From A Philosophical Basis of Medical Practice Toward a Philosophy and Ethic of the Healing Professions Edmund D Pellegrino David C Thomasma OUP Oxford 1981 Ch6 The Anatomy of Clinical Judgments p119-152 Note judgments have consequences of action, decisions can separate out the knowledge used. 

The pharmaceutical supply chain in Sri Lanka faces numerous challenges, including fluctuations in demand, regulatory constraints, and logistical inefficiencies. This report aims to develop a comprehensive model using system dynamics to understand and improve the supply chain's efficiency and responsiveness. The primary objective is to analyze the key dynamics influencing the supply chain, such as supply rates, demand fluctuations, and inventory management, and to propose strategic insights for optimization.

WIP Reviewing past work on a dynamic computational version of clinical reasoning and judgment

Nurse workforce ageing chain showing effects of parenting, quits and enrollments on nurse numbers by age and average age.

A model of thermostat action including conversions between heat and temperature and outside temperature. See also, after this model, how the concept map of a thermostat at IM-735 changed to the concept map at IM-736

Adapted from Fig.1.from Ana V Diez Roux (2011) Complex Systems Thinking May Help Us Transcend Current Impasses in Health Disparities Research Am J Public Health 2011;101 1627-1634 http://ajph.aphapublications.org/cgi/content/abstract/101/9/1627?etoc

Critical Systems Heuristics Boundary critique from Ulrich See also Critical Systems Thinking Insight

From Rudolph JW Morrison JB and Carroll JS (2009) The Dynamics of Action-Oriented Problem Solving: Linking Interpretation and Choice. Academy of Management Review 34 (4) p733-756 Available online . This paper won the Forrester Award for 2012 and the presentation talk video is available. The presentation  paper abstract is available in System Dynamics Review 2013 here

Dynamics of Emergency Department Crowding Initial Simplest Simulation of the View from the waiting room. Start of a simple introductory series which proceeds to IM-338  A simple CLD is at IM-340

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

Extension of IM-1401 to clinical judgments of risk and decisions to act  See medical decision making 2016 article abstract