From blog entry understandingsociety
Meaning and Causation. Expanded from IM-1163
Social Mechanisms
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.
Clone of Clone of Kermack–McKendrick Epidemic SIR Infectious Disease Model - Metrics by Guy Lakeman
Festinger's theory of cognitive dissonance represented in feedback loops, relevant to defensive behaviours, goal conflict in PCT and mental health From p256 Fig 4.23 of George Richardson (1991) Book Feedback Thought in Social Science and Systems Theory,. Book reviewed here
Cognitive Dissonance
WIP for IT enabled regional health services. See also IM-14104 The Ecology of Medical Care
Regional Health Services
Rich picture version of causal loop diagram for medication errors, showing the importance of reporting, analyzing and fixing knowledge and process errors. Medication errors will tend to grow due to the use of more medications in more complex patients. This is exacerbated by the loss of staff knowledge by turnover and goal erosion in places with harmful errors.
Clone of Medication error CLD
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
Clone of Depression Dynamics
Extension of IM-14124 with an adjusted bed capacity stock. For backlog and services see IM-8382
Clone of Hospital Emergency and Elective Admission Interaction Simulation 3
From PLOS One Article April 2012 Worni, M et al System Dynamics to Model the Unintended Consequences of Denying Payment for Venous Thromboembolism after Total Knee Arthroplasty
Payment Policy Unintended Consequences
Jack Homer's model via ithink and Mark Heffernan. From Jack's paper Worker burnout: a dynamic model with implications for prevention and control System Dynamics Review 1985 1(1)42-62. See IM-641 for the Causal loop diagram
Burnout Dynamics
Based on Norbari APHA presentation 2016 An agent-based model to examine the impact of unaffordable housing on obesity risk in early childhood, via Kurt Kreuger
Housing and Food in Childhood Obesity
Simple Bass diffusion modified from Sterman Business Dynamics Ch9. Compare with the SI infectious disease model Insight 584.
Clone of Clone of Diffusion of Innovation Bass Model
UBI diagram from Insight 1 linked to salutogenesis, life course trajectory and more detail on Child Development WIP
Employment and Welfare Interventions Effect on the first 1000 days 2
Addition of glucagon hormone action to control glucose homeostasis extended from IM-586
Clone of Clone of Glucose regulation CLD 2
WIP based on Mascia2017 Analyzing conservation strategies article and other mostly private insights. A more detailed form of structure agency IM-1163
Intervention Types Mechanisms and Effects
IPCC Extreme weather events combined context diagrams FBE WIP
Adaptation and disaster risk managment approaches for a changing climate
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.
Kermack–McKendrick Epidemic SIR Infectious Disease Model - Metrics by Guy Lakeman
A simple generic rich picture view of interactions among people with needs services and resources, which can be used as a pattern for many individual health care insights. This has been extended in IM-731
Health Care Interactions
Causal Loop Diagram CLD version of Insight 339. A simple workforce supply chain like Insight 162 with optimal intake policy taking into account the target for professionals and the trainees already in the pipeline.
Trainees to Professionals Hiring Policy CLD
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.
Clone of Health & Health Care
Modelling prevention and treatments to mitigate mortality from cardiovascular disease.
Cardiovascular Disease
From Werner Ulrich's JORS Articles Operational research and critical systems thinking – an integrated perspective. Part 1: OR as applied systems thinking. Journal of the Operational Research Society advance online publication (14 December 2011). and Part 2 :OR as argumentative practice.
See also insight on Boundary Critique
Critical Systems Thinking
WIP map of ebola in west Africa based on African Affairs
Article and SEIR framework
Clone of Ebola and Structural Violence
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.
Clone of Health & Health Care
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
Clone of Depression Dynamics