The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors. THIS MODEL BY GUY LAKEMAN, FROM METRICS OBTAINED USING A MORE COMPREHENSIVE VENSIM SOFTWARE MODEL, SHOWS CURRENT CONDITIONS CREATED BY THE LATEST W
Jobs Resources Strategy Engineering Technology Sea Economics Ocean Science Mortality Animals Demographics Rural Industrial Urban Services Labor Land Death Fish Population Growth Population Weather Politics Failure Climate Yield Regeneration Fertility Health Pollution Environment Plants Lifetime

The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors.

THIS MODEL BY GUY LAKEMAN, FROM METRICS OBTAINED USING A MORE COMPREHENSIVE VENSIM SOFTWARE MODEL, SHOWS CURRENT CONDITIONS CREATED BY THE LATEST WEATHER EXTREMES AND LOSS OF ARABLE LAND BY THE  ALBEDO EFECT MELTING THE POLAR CAPS TOGETHER WITH NORTHERN JETSTREAM SHIFT NORTHWARDS, AND A NECESSITY TO ACT BEFORE THERE IS HUGE SUFFERING.
BY SETTING THE NEW ECOLOGICAL POLICIES TO 2015 WE CAN SEE THAT SOME POPULATIONS CAN BE SAVED BUT CITIES WILL SUFFER MOST. 
CURRENT MARKET SATURATION PLATEAU OF SOLID PRODUCTS AND BEHAVIORAL SINK FACTORS ARE ALSO ADDED

Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amount of non-renewable resources (which could occur through the development of better exploration technologies) improve our future? Also, experiment with the start date of a low birth-rate, environmentally focused policy.

Clone of 2014 Weather & Climate Extreme Loss of Arable Land and Ocean Fertility - The World3+ Model: Forecaster
Kyra Evers
This systems model will help students understand the different systems that make up our body and how choices we make can impact how those systems work. Factors are based on daily choices.
Health Human Body Systems Disease
This systems model will help students understand the different systems that make up our body and how choices we make can impact how those systems work.
Factors are based on daily choices.
Clone of Human Body Systems Efficiency
k sha
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
asish menon
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Clone of Burnout
Hoa Nguyen
This is reproduction of the tutorial exercise 1, Disease Dynamics.
Health Disease
This is reproduction of the tutorial exercise 1, Disease Dynamics.
Clone of Tut1-diseaseDynamics
Bilal Koussayer
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
RJC
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
Hoa Nguyen
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
Gagandeep Singh
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
Hoa Nguyen
A Susceptible-Infected-Recovered (SIR) disease model with waning immunity
Health Care Health Disease

A Susceptible-Infected-Recovered (SIR) disease model with waning immunity

Clone of SIR model with waning immunity
Racquel Figueroa
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Clone of Burnout
Matselis Evangelos
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Clone of Clone of Burnout
RichardS
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
Gagandeep Singh
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
Patrick Banks
Insight diagram
Health
Simulation SARS
Iman Kahfi
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
Hoa Nguyen
Model description: This model is designed to simulate the outbreak of Covid-19 in Burnie in Tasmania, death cases, the governmental responses and Burnie local economy.  More importantly, the impact of governmental responses to both Covid-19 infection and to local economy, the impact of death
COVID-19 Pandemic Health Economy
Model description:
This model is designed to simulate the outbreak of Covid-19 in Burnie in Tasmania, death cases, the governmental responses and Burnie local economy. 

More importantly, the impact of governmental responses to both Covid-19 infection and to local economy, the impact of death cases to local economy are illustrated. 

The model is based on SIR (Susceptible, Infected and recovered) model. 

Variables:
The simulation takes into account the following variables: 

Variables related to Covid-19: (1): Infection rate. (2): Recovery rate. (3): Death rate. (4): Immunity loss rate. 

Variables related to Governmental policies: (1): Vaccination mandate. (2): Travel restriction to Burnie. (3): Economic support. (4): Gathering restriction.

Variables related to economic growth: Economic growth rate. 

Adjustable variables are listed in the part below, together with the adjusting range.

Assumptions:
(1): Governmental policies are aimed to control(reduce) Covid-19 infections and affect (both reduce and increase) economic growth accordingly.

(2) Governmental policy will only be applied when reported cases are 10 or more. 

(3) The increasing cases will negatively influence Burnie economic growth.

Enlightening insights:
(1) Vaccination mandate, when changing from 80% to 100%, doesn't seem to affect the number of death cases.

(2) Governmental policies are effectively control the growing death cases and limit it to 195. 

Burnie Tasmania Covid - 19 outbreak simulation Model by Yankang Huang 541 277
Yankang Huang
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
Gagandeep Singh
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
asish menon
Exponentielles Wachstum tritt üblicherweise zu Beginn einer Epidemie auf. Durch Impfung/Immunität wird der Verlauf abgeschwächt falls ein substantieller Anteil der Bevölkerung nicht mehr ansteckbar ist Ein sogenanntes SIR Modell kommt in der einfachsten Version mit drei Stock Variablen aus: S =
Health
Exponentielles Wachstum tritt üblicherweise zu Beginn einer Epidemie auf. Durch Impfung/Immunität wird der Verlauf abgeschwächt falls ein substantieller Anteil der Bevölkerung nicht mehr ansteckbar ist

Ein sogenanntes SIR Modell kommt in der einfachsten Version mit drei Stock Variablen aus:
S = Infizierbare (zu Beginn 100%)
I  = Infizierte (zu Beginn 1 Person oder 1%)
R = Immune (zu Beginn 0%)

Weiterhin werden zwei Parameter benötigt (siehe z.B. Wikipedia https://de.wikipedia.org/wiki/SIR-Modell#Basisreproduktionszahl_und_Verlauf_einer_Epidemie)
beta =  wieviele Nichtinfizierte werden pro Infizierter und  Zeiteinheit angesteckt
gamma = Rate, mit der infizierte Personen in der Zeiteinheit genesen oder sterben
Die jeweiligen neuen Zustandsgrößen werden dann wie folgt berechnet:

  • Infizierbare_neu(t)=-beta*Infizierbare(t)*Infizierte(t)
  • Infizierte_neu(t)=beta*Infizierbare(t)*Infizierte(t) – gamma*Infizierte(t)
  • Immune_neu(t)=gamma*Infizierte(t)

Aufgabe 4
Chris Reudenbach
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
RichardS
​This model has been constructed from the model published in the following article: Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control".  System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Health
​This model has been constructed from the model published in the following article:
Jack B. Homer, "Worker burnout: a dynamic model with implications for prevention and control". 
System Dynamics Review 1 (no. 1, Summer 1985): 42-62. ISSN 0883-7066. 0 1985 by the Svstem Dynamics Society. 
Clone of Burnout
Hoa Nguyen
THE 2020 MODEL (BY GUY LAKEMAN) EMPHASIZES THE PEAK IN POLLUTION BEING CREATED BY OVERPOPULATION. WITH THE CARRYING CAPACITY OF ARABLE LAND NOW BEING 1.5 TIMES OVER A SUSTAINABLE FUTURE (PASSED IN 1990) AND NOW INCREASING IN LOSS OF HUMAN SUSTAINABILITY DUE TO SEA RISE AND EXTREME GLOBAL WATER R
Yield Transport Silicene Graphene Resource Solar Nuclear Energy Food Agriculture Cyclone Tornado Typhoon Hurricane Loss Drought Flood Animals Plants Fish Sea Ocean Regeneration Pollution Lifetime Rural Industrial Urban Labor Jobs Land Resources Services Health Fertility Politics Economics Strategy Engineering Technology Science Mortality Death Failure Climate Weather Population Population Growth Demographics Environment

THE 2020 MODEL (BY GUY LAKEMAN) EMPHASIZES THE PEAK IN POLLUTION BEING CREATED BY OVERPOPULATION.
WITH THE CARRYING CAPACITY OF ARABLE LAND NOW BEING 1.5 TIMES OVER A SUSTAINABLE FUTURE (PASSED IN 1990) AND NOW INCREASING IN LOSS OF HUMAN SUSTAINABILITY DUE TO SEA RISE AND EXTREME GLOBAL WATER RELOCATION IN WEATHER CHANGES IN FLOODS AND DROUGHTS AND EXTENDED TROPICAL AND HORSE LATTITUDE CYCLONE ACTIVITY AROUND HADLEY CELLS

The World3 model is a detailed simulation of human population growth from 1900 into the future. It includes many environmental and demographic factors.

THIS MODEL BY GUY LAKEMAN, FROM METRICS OBTAINED USING A MORE COMPREHENSIVE VENSIM SOFTWARE MODEL, SHOWS CURRENT CONDITIONS CREATED BY THE LATEST WEATHER EXTREMES AND LOSS OF ARABLE LAND BY THE  ALBEDO EFECT MELTING THE POLAR CAPS TOGETHER WITH NORTHERN JETSTREAM SHIFT NORTHWARDS, AND A NECESSITY TO ACT BEFORE THERE IS HUGE SUFFERING.
BY SETTING THE NEW ECOLOGICAL POLICIES TO 2015 WE CAN SEE THAT SOME POPULATIONS CAN BE SAVED BUT CITIES WILL SUFFER MOST. 
CURRENT MARKET SATURATION PLATEAU OF SOLID PRODUCTS AND BEHAVIORAL SINK FACTORS ARE ALSO ADDED

Use the sliders to experiment with the initial amount of non-renewable resources to see how these affect the simulation. Does increasing the amount of non-renewable resources (which could occur through the development of better exploration technologies) improve our future? Also, experiment with the start date of a low birth-rate, environmentally focused policy.

Clone of WORLD2020 to PLANET2020
Nilo Guimaraes
Insight diagram
Health Business App Money
EEIS Health App
Mona