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A Tragedy of the Commons situation exists whenever two or more activities, each, which in order to produce results, rely on a shared limited resource. Results for these activities continue to develop as long as their use of the limited resource doesn't exceed the resource limit. Once this limit is r
Archetype Tragedy Of The Commons
A Tragedy of the Commons situation exists whenever two or more activities, each, which in order to produce results, rely on a shared limited resource. Results for these activities continue to develop as long as their use of the limited resource doesn't exceed the resource limit. Once this limit is reached the results produced by each activity are limited to the level at which the resource is replenished. See also Archetypes.
Tragedy of the Commons
Gene Bellinger
24 2 months ago
Actors: Institutions and the people inside these institutions that hold an interest in the regulatory toxicology system and/or the use of NAMs Goals: Broad purpose of an actor (e.g., reason for existence or purpose of an institution, driving force). Simultaneous and sometimes conflicting goals
Actors: Institutions and the people inside these institutions that hold an interest in the regulatory toxicology system and/or the use of NAMs

Goals: Broad purpose of an actor (e.g., reason for existence or purpose of an institution, driving force). Simultaneous and sometimes conflicting goals might be followed at any time by actors.

Incentives:
27.02.2025 backbone + actors and their goals/incentives
Angela Bearth
3 last week
SARS-CoV-19 spread  in different countries - please  adjust variables accordingly Italy elderly population (>65): 0.228 estimated undetected cases factor: 4-11 starting population size: 60 000 000 high blood pressure: 0.32 (gbe-bund) heart disease: 0.04 (statista) free intensive
Disease Coronavirus Infection Corona Virus COVID-19 SARS-CoV-19 Pandemic
SARS-CoV-19 spread in different countries
- please adjust variables accordingly

Italy
  • elderly population (>65): 0.228
  • estimated undetected cases factor: 4-11
  • starting population size: 60 000 000
  • high blood pressure: 0.32 (gbe-bund)
  • heart disease: 0.04 (statista)
  • free intensive care units: 3 100

Germany
  • elderly population (>65): 0.195 (bpb)
  • estimated undetected cases factor: 2-3 (deutschlandfunk)
  • starting population size: 83 000 000
  • high blood pressure: 0.26 (gbe-bund)
  • heart disease: 0.2-0.28 (herzstiftung)
  • free intensive care units: 5 880

France
  • elderly population (>65): 0.183 (statista)
  • estimated undetected cases factor: 3-5
  • starting population size: 67 000 000
  • high blood pressure: 0.3 (fondation-recherche-cardio-vasculaire)
  • heart disease: 0.1-0.2 (oecd)
  • free intensive care units: 3 000

As you wish
  • numbers of encounters/day: 1 = quarantine, 2-3 = practicing social distancing, 4-6 = heavy social life, 7-9 = not caring at all // default 2
  • practicing preventive measures (ie. washing hands regularly, not touching your face etc.): 0.1 (nobody does anything) - 1 (very strictly) // default 0.8
  • government elucidation: 0.1 (very bad) - 1 (highly transparent and educating) // default 0.9
  • Immunity rate (due to lacking data): 0 (you can't get immune) - 1 (once you had it you'll never get it again) // default 0.4

Key
  • Healthy: People are not infected with SARS-CoV-19 but could still get it
  • Infected: People have been infected and developed the disease COVID-19
  • Recovered: People just have recovered from COVID-19 and can't get it again in this stage
  • Dead: People died because of COVID-19
  • Immune: People got immune and can't get the disease again
  • Critical recovery percentage: Chance of survival with no special medical treatment
SARS-CoV-19 model
Lucia Vega Resto
63
As initially proposed by Pr. William M White of Cornell University: http://www.geo.cornell.edu/eas/education/course/descr/EAS302/302_06Lab11.pdf http://www.eas.cornell.edu/
Environment
As initially proposed by Pr. William M White of Cornell University:
Global Carbon Cycle
France Caron
526
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.
Infection Epidemics Health Care

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.

SEIRD 01: COVID-19 spread
Pau Fonseca
524
From Jay Forrester 1971 Book  World Dynamics , the earlier, simpler version of the  World 3   Limits to Growth  Model. adapted from Mark Heffernan's ithink version at  Systemswiki . An element of Perspectives: The Foundation of Understanding and Insights for Effective Action. Register at  http://w
Perspectives Environment Limits To Growth

From Jay Forrester 1971 Book World Dynamics, the earlier, simpler version of the World 3 Limits to Growth Model. adapted from Mark Heffernan's ithink version at Systemswiki.

An element of Perspectives: The Foundation of Understanding and Insights for Effective Action. Register at http://www.systemswiki.org/

World2 Model of World Dynamics
Geoff McDonnell
59