Crea un Bucle de Realimentación Negativa, modelando el llenado de un vaso con agua. Universidad del Cauca.  Profesor: Miguel Angel Niño Zambrano  curso:  Enlace Curso en Moodle   Videos ejemplos:  Enlace a la lista de videos del curso youtube
Crea un Bucle de Realimentación Negativa, modelando el llenado de un vaso con agua.
Universidad del Cauca. 
Profesor: Miguel Angel Niño Zambrano
looking at the problem of teaching multi curriculum
looking at the problem of teaching multi curriculum
This is a simple population model designed to illustrate some of the concepts of stock and flow diagrams and simulation modelling.    Adjust the population, birth fraction and life expectancy below based on real data for Singapore
This is a simple population model designed to illustrate some of the concepts of stock and flow diagrams and simulation modelling.

Adjust the population, birth fraction and life expectancy below based on real data for Singapore
Presenta un Bucle de Realimentación Positiva modelando una población de conejos Universidad del Cauca.  Profesor: Miguel Angel Niño Zambrano  curso:  Enlace Curso en Moodle   Videos ejemplos:  Enlace a la lista de videos del curso youtube
Presenta un Bucle de Realimentación Positiva modelando una población de conejos
Universidad del Cauca. 
Profesor: Miguel Angel Niño Zambrano
How education causes the gap between socio-economic status?
How education causes the gap between socio-economic status?
Crea un modelo de propagación de una epidemia en una población constante. Acople de Bucles Universidad del Cauca.  Profesor: Miguel Angel Niño Zambrano  curso:  Enlace Curso en Moodle   Videos ejemplos:  Enlace a la lista de videos del curso youtube
Crea un modelo de propagación de una epidemia en una población constante. Acople de Bucles
Universidad del Cauca. 
Profesor: Miguel Angel Niño Zambrano
 A Framework for K-12 Science Education: Practices, Crosscutting Concepts, and Core Ideas  website   

A Framework for K-12 Science Education: Practices, Crosscutting Concepts, and Core Ideas website  

Simple population dynamics examples based on ​Lotka-Volterra equations.
Simple population dynamics examples based on ​Lotka-Volterra equations.
    Dynamic simulation modelers are particularly interested in understanding and being able to distinguish between the behavior of stocks and flows that result from internal interactions and those that result from external forces acting on a system.  For some time modelers have been particularly int

Dynamic simulation modelers are particularly interested in understanding and being able to distinguish between the behavior of stocks and flows that result from internal interactions and those that result from external forces acting on a system.  For some time modelers have been particularly interested in internal interactions that result in stable oscillations in the absence of any external forces acting on a system.  The model in this last scenario was independently developed by Alfred Lotka (1924) and Vito Volterra (1926).  Lotka was interested in understanding internal dynamics that might explain oscillations in moth and butterfly populations and the parasitoids that attack them.  Volterra was interested in explaining an increase in coastal populations of predatory fish and a decrease in their prey that was observed during World War I when human fishing pressures on the predator species declined.  Both discovered that a relatively simple model is capable of producing the cyclical behaviors they observed.  Since that time, several researchers have been able to reproduce the modeling dynamics in simple experimental systems consisting of only predators and prey.  It is now generally recognized that the model world that Lotka and Volterra produced is too simple to explain the complexity of most and predator-prey dynamics in nature.  And yet, the model significantly advanced our understanding of the critical role of feedback in predator-prey interactions and in feeding relationships that result in community dynamics.The Lotka–Volterra model makes a number of assumptions about the environment and evolution of the predator and prey populations:

1. The prey population finds ample food at all times.
2. The food supply of the predator population depends entirely on the size of the prey population.
3. The rate of change of population is proportional to its size.
4. During the process, the environment does not change in favour of one species and genetic adaptation is inconsequential.
5. Predators have limitless appetite.
As differential equations are used, the solution is deterministic and continuous. This, in turn, implies that the generations of both the predator and prey are continually overlapping.[23]

Prey
When multiplied out, the prey equation becomes
dx/dtαx - βxy
 The prey are assumed to have an unlimited food supply, and to reproduce exponentially unless subject to predation; this exponential growth is represented in the equation above by the term αx. The rate of predation upon the prey is assumed to be proportional to the rate at which the predators and the prey meet; this is represented above by βxy. If either x or y is zero then there can be no predation.

With these two terms the equation above can be interpreted as: the change in the prey's numbers is given by its own growth minus the rate at which it is preyed upon.

Predators

The predator equation becomes

dy/dt =  - 

In this equation, {\displaystyle \displaystyle \delta xy} represents the growth of the predator population. (Note the similarity to the predation rate; however, a different constant is used as the rate at which the predator population grows is not necessarily equal to the rate at which it consumes the prey). {\displaystyle \displaystyle \gamma y} represents the loss rate of the predators due to either natural death or emigration; it leads to an exponential decay in the absence of prey.

Hence the equation expresses the change in the predator population as growth fueled by the food supply, minus natural death.


 
 
 
 
 This paints a broad picture for my non-profit of how tutoring helps disadvantaged youth and, with the right jump-start from a caring individual (R1 point), how learning can get learning and skill begets further skill. I appreciate any feedback to modifications because they might shape progr

This paints a broad picture for my non-profit of how tutoring helps disadvantaged youth and, with the right jump-start from a caring individual (R1 point), how learning can get learning and skill begets further skill. I appreciate any feedback to modifications because they might shape program direction.

Future iterations will show the low skilled isolated individual gets stuck in a cycle of "no-growth." I would also like to explore the dynamics of how the learner reduces dependence on the tutor.

This model is under construction, not at all ready, don't use it for any purposes (my suggestion ☺) yet.
This model is under construction, not at all ready, don't use it for any purposes (my suggestion ☺) yet.

 Effect of rewards on the selection promotion and retirement of scholars in universities. Based on Geoffrey Brennan's Selection and the Currency of Reward chapter10 in The Theory of Institutional Design ed. RG Goodwin Cambridge University Press 1996 See also  IM-2016

Effect of rewards on the selection promotion and retirement of scholars in universities. Based on Geoffrey Brennan's Selection and the Currency of Reward chapter10 in The Theory of Institutional Design ed. RG Goodwin Cambridge University Press 1996 See also IM-2016

 WIP based on Geoffrey Brennan's Selection and the Currency of Reward chapter expanded from  IM-396  

WIP based on Geoffrey Brennan's Selection and the Currency of Reward chapter expanded from IM-396 

WIP AnyLogic Hybrid Model methods and examples taken from Nate Osgood's Bootcamps around 2017
WIP AnyLogic Hybrid Model methods and examples taken from Nate Osgood's Bootcamps around 2017
 Ejemplo Básico de Retrasos de Material Nivel 3 - Cosechas Usando Funciones Históricas   Universidad del Cauca.  Profesor: Miguel Angel Niño Zambrano  curso:  Enlace Curso en Moodle   Videos ejemplos:  Enlace a la lista de videos del curso youtube
Ejemplo Básico de Retrasos de Material Nivel 3 - Cosechas Usando Funciones Históricas
Universidad del Cauca. 
Profesor: Miguel Angel Niño Zambrano
Comprendre la chute du nombre d'enfants scolarisés en Syrie depuis le début du conflit en 2012
Comprendre la chute du nombre d'enfants scolarisés en Syrie depuis le début du conflit en 2012
 
 
 
 
 This Loop diagram outlines how community engagement endeavors might build up social capital in a location and inspire perseverance in the face of adversity. As such, these dynamics contribute to the reduction in community problems. Inspired by the work of Wayne Hoy, Bandura, Sampson and man

This Loop diagram outlines how community engagement endeavors might build up social capital in a location and inspire perseverance in the face of adversity. As such, these dynamics contribute to the reduction in community problems. Inspired by the work of Wayne Hoy, Bandura, Sampson and many others.

 Rotating Pendulum Z201 from System Zoo 1 p80-83  https://pt.wikipedia.org/wiki/P%C3%AAndulo / https://en.wikipedia.org/wiki/Pendulum  https://pt.wikipedia.org/wiki/Equa%C3%A7%C3%A3o_do_p%C3%AAndulo https://en.wikipedia.org/wiki/Pendulum_(mechanics)

Rotating Pendulum Z201 from System Zoo 1 p80-83

https://pt.wikipedia.org/wiki/P%C3%AAndulo / https://en.wikipedia.org/wiki/Pendulum

https://pt.wikipedia.org/wiki/Equa%C3%A7%C3%A3o_do_p%C3%AAndulo https://en.wikipedia.org/wiki/Pendulum_(mechanics)

This models how students learn through the ALEKS math software.
This models how students learn through the ALEKS math software.
A model of ideal affects of classroom reward system.
A model of ideal affects of classroom reward system.
A Fourier series is a way to expand a periodic function in terms of sines and cosines. The Fourier series is named after Joseph Fourier, who introduced the series as he solved for a mathematical way to describe how heat transfers in a metal plate.  The GIFs above show the 8-term Fourier series appro
A Fourier series is a way to expand a periodic function in terms of sines and cosines. The Fourier series is named after Joseph Fourier, who introduced the series as he solved for a mathematical way to describe how heat transfers in a metal plate.

The GIFs above show the 8-term Fourier series approximations of the square wave and the sawtooth wave.

square wave GIF

sawtooth GIF