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The Role Of Vocabulary Size In Assessing Second Language Vocabulary, Kevin John Zimmerman Jul 2004

The Role Of Vocabulary Size In Assessing Second Language Vocabulary, Kevin John Zimmerman

Theses and Dissertations

This study investigated the role of vocabulary size in assessing learners from various L1 backgrounds and for institutional placement. Participants included native speakers of Spanish, Korean, Japanese, and Mandarin, who took a test that estimated the size of their productive English vocabulary. First, the vocabulary size of students from each language group was compared and the relationship between vocabulary size and institutional placement level was examined. Then, scores were analyzed to determine how cognates and loan words influenced the participants' performance on the vocabulary test. Further, students' vocabulary size scores were correlated with their placement scores that evaluated reading, writing, …


Melioration And The Behavioral Addiction Process: An Experimental Analysis, Jared Micah Dinehart Jul 2004

Melioration And The Behavioral Addiction Process: An Experimental Analysis, Jared Micah Dinehart

Theses and Dissertations

Melioration can be a factor contributing to behavioral addiction. In this study, 76 university undergraduates operated a "money machine" by selecting between choices that corresponded to maximization and melioration. Participants initially made choices consistent with a strategy of melioration and demonstrated significantly greater variability in choice behavior when visual cues were presented aimed at exposing the internality (or consequence) of the choice situation. Removal of the visual cues resulted in a return to lower responding. Visual cues may aid in interrupting the behavioral addiction pattern by limiting exclusive use of a melioration choice strategy. Methods of restructuring and experimentation with …


Pressurized Hot Water: An Alternative Method Of Nutrient Extraction And Subsequent Analysis For Use In Small-Scale Agriculture, Kristy Susanne Crane Jul 2004

Pressurized Hot Water: An Alternative Method Of Nutrient Extraction And Subsequent Analysis For Use In Small-Scale Agriculture, Kristy Susanne Crane

Theses and Dissertations

Soil analysis for small acreage farms in developing countries is often inconvenient and prohibitively expensive using current procedures, yet the information gained from these soil tests could have economical and environmental benefits. The pressurized hot-water (PHW) extraction coupled with colorimetric or turbidimetric analyses shows promise as an alternative to current procedures. Accepted methods of colorimetric analysis for NO3-N and P exist but an alternative method to atomic absorption spectrometry for K analysis is needed. Of the many possible methods to quantify K, tests performed in the Brigham Young University (BYU) laboratory found sodium tetraphenylborate to be unsatisfactory and sodium cobaltinitrite …


The Application Of Pedology, Stable Carbon Isotope Analyses And Geographic Information Systems To Ancient Soil Resource Investigations At Piedras Negras, Guatemala, Kristofer Dee Johnson Jul 2004

The Application Of Pedology, Stable Carbon Isotope Analyses And Geographic Information Systems To Ancient Soil Resource Investigations At Piedras Negras, Guatemala, Kristofer Dee Johnson

Theses and Dissertations

The ancient inhabitants of the Maya Lowlands enjoyed a long and fruitful period of growth which climaxed at around AD 800. At that time, millions of people successfully subsisted in a challenging environment that today only supports a population a fraction of that size. These facts, and the subsequent "Maya Collapse", are the impetus of many recent studies that utilize environmental data, in addition to conventional archaeology, to investigate this Maya mystery. Pedological studies and stable carbon isotope analysis of soil organic matter, combined with Geographic Information Systems (GIS) are three tools that can be used to answer crucial questions …


Zapus Princeps, E. Blake Hart, Mark C. Belk, Eralee Jordan, Malinda W. Gonzalez Jul 2004

Zapus Princeps, E. Blake Hart, Mark C. Belk, Eralee Jordan, Malinda W. Gonzalez

Faculty Publications

Zapus princeps Allen, 1893:71. Type locality “Florida, La Plata Co., Colorado.”
Zapus pacificus Merriam, 1897:104. Type locality “Prospect, Rogue River Valley, Jackson Co., Oregon.”
Zapus saltator Allen, 1899:3. Type locality “Telegraph Creek, British Columbia.”


Hiring Practices For Graphic Designers In Utah County, Utah, Landon T. Densley Jul 2004

Hiring Practices For Graphic Designers In Utah County, Utah, Landon T. Densley

Theses and Dissertations

The purpose of this study was to show how hiring standards of evidence for graphic designers in Utah County compared with the national standards of evidence. The four major national standards of evidence for hiring graphic designers, identified by American Institute of Graphic Arts (AIGA) and Goldfarb, in order of importance are portfolio, recommendations, personality, and education. The data from this study revealed that Utah County employer's standards of evidence matched up closely to national standards of evidence, but the order of importance was slightly different because personality was ranked ahead of recommendations and education.


Communities, Place, And Conservation On Mount Kilimanjaro, Marie Bradshaw Durrant Jul 2004

Communities, Place, And Conservation On Mount Kilimanjaro, Marie Bradshaw Durrant

Theses and Dissertations

The Chagga people have lived and worked on Mount Kilimanjaro for more than 250 years. Through traditions and social practices within their communities and families, strong bonds are established between the Chagga and their home on the mountain. Kilimanjaro National Park and Forest Reserve (KINAPA) was established in the 1970s to protect and conserve the mountain, based on a long history of colonialism and western ideals. As KINAPA has attempted to preserve the flora and fauna on the uppermost portion of Mount Kilimanjaro, they have alienated local residents from the land through a conservation approach that relies on "fences and …


A Hydrothermal After-Ripening Time Model Of Seed Dormancy Loss In Bromus Tectorum, Necia Beck Bair Jul 2004

A Hydrothermal After-Ripening Time Model Of Seed Dormancy Loss In Bromus Tectorum, Necia Beck Bair

Theses and Dissertations

After-ripening, the process of seed dormancy loss in dry storage is associated with a decrease in the mean base water potential, one of the parameters of hydrothermal time. The rate of change of the mean base water potential is assumed to be a linear function of temperature above a specific base temperature and as a result can be described by a thermal after-ripening (TAR) time model, an extension of hydrothermal modelling. The thermal requirement for after-ripening is the thermal time necessary for the modelling base water potential of the seed to shift from its original value to its final value. …


How To Compare Different Conceptual Approaches To Metapopulation Modelling, Frank M. Hilker, Martin Hinsch, Hans Joachim Poethke Jul 2004

How To Compare Different Conceptual Approaches To Metapopulation Modelling, Frank M. Hilker, Martin Hinsch, Hans Joachim Poethke

International Congress on Environmental Modelling and Software

Models are essential tools in understanding population dynamics and deriving management measuresin the context of population viability analysis. However, very often the question arises which type ofmodel architecture is appropriate for a given situation. Mostly this situation is characterized by a shortage ofdata for model parameterization. In this study, an approach is presented to overcome this lack of real-worlddata by using the output of long-term simulation runs of specific individual-based models. Thus, it is possibleto evaluate the quality of macroscopic model predictions. Furthermore, this setting allows to compare totallydifferent types of metapopulation models. As an exemplary case study, this approach …


Stability Analyses Of The 50/50 Sex Ratio Using Lattice Simulation, Y. Itoh, K. Tainaka, J. Yoshimura Jul 2004

Stability Analyses Of The 50/50 Sex Ratio Using Lattice Simulation, Y. Itoh, K. Tainaka, J. Yoshimura

International Congress on Environmental Modelling and Software

The observed sex ratio is nearly one half in many animals including humans. Fisher explained thatthe 50/50 sex ratio is optimal. However, the 50/50 sex ratio seems highly unstable because a slight deviationfrom 50/50 changes the optimal ratio to the opposite extremes; zero or unity. Thus sex ratio should befluctuating wildly around 50/50. In contrast, the observed 50/50 sex ratios in wild populations seem to bevery stable. There should be some unknown mechanisms to stabilize the sex ratio 50/50. We build the latticemodel of mating populations. Each cell represents a male, a female, or an empty site. We perform latticesimulation …


Simulation Of Water And Carbon Fluxes In Agro- And Forest Ecosystems At The Regional Scale, J. Post, Valentina Krysanova, F. Suckow Jul 2004

Simulation Of Water And Carbon Fluxes In Agro- And Forest Ecosystems At The Regional Scale, J. Post, Valentina Krysanova, F. Suckow

International Congress on Environmental Modelling and Software

To investigate effects of different land use management practices on carbon fluxes at the regional scale we developed an integrated model by coupling an ecohydrological river basin model SWIM (Soil and Water Integrated Model) and a soil organic matter model SCN (Soil-Carbon-Nitrogen model). The latter is a submodel of the forest growth model 4C. The extended integrated model combines hydrological processes, crop and vegetation growth, carbon, nitrogen, phosphorus cycles and soil organic matter turnover. It is based on a three level spatial disaggregation scheme (basin, subbasin and hydrotopes), whereas a hydrotope is a set of elementary units in the subbasin …


How Tight Are The Limits To Land And Water Use? – Com-Bined Impacts Of Food Demand And Climate Change, Hermann Lotze-Campen, Christoph Mülle, Alberte Bondeau, Pascalle Smith, Wolfgang Lucht Jul 2004

How Tight Are The Limits To Land And Water Use? – Com-Bined Impacts Of Food Demand And Climate Change, Hermann Lotze-Campen, Christoph Mülle, Alberte Bondeau, Pascalle Smith, Wolfgang Lucht

International Congress on Environmental Modelling and Software

In the coming decades, world agricultural systems will face serious transitions. Population growth, income and lifestyle changes will lead to considerable increases in food demand. Moreover, a rising demand for renewable energy and biodiversity protection may restrict the area available for food production. On the other hand, global climate change will affect production conditions, for better or worse depending on re-gional conditions. In order to simulate these combined effects consistently and in a spatially explicit way, we have linked the Lund-Potsdam-Jena Dynamic Global Vegetation Model (LPJ) with a "Management model of Agricultural Production and its Impact on the Environment" (MAgPIE). …


Assessing The Effects Of Agricultural Change On Nitrogen Fluxes Using The Integrated Nitrogen Catchment (Inca) Model, Katri Rankinen, Heikki Lehtonen, Kirsti Granlund, Ilona Bärlund Jul 2004

Assessing The Effects Of Agricultural Change On Nitrogen Fluxes Using The Integrated Nitrogen Catchment (Inca) Model, Katri Rankinen, Heikki Lehtonen, Kirsti Granlund, Ilona Bärlund

International Congress on Environmental Modelling and Software

The INCA (Integrated Nitrogen CAtchment) model is a semi-distributed, dynamic nitrogen modelwhich simulates nitrogen fluxes in catchments. Sources of nitrogen can be atmospheric deposition, the terrestrialenvironment or direct discharges. The model can simulate nitrogen processes in six land use classes.There are three components included; the hydrological model, the catchment nitrogen process model and theriver nitrogen process model. The aim of this study is to compare the effects of three different agriculturalpolicy scenarios on inorganic nitrogen flux to the sea from Finnish catchments. Target years of these scenariosare 2010 and 2020. The changes in agricultural production in different scenarios of agricultural …


Possible Courses: Multi-Objective Modelling And Decision Support Using A Bayesian Network Approximation To A Nonpoint Source Pollution Model, David Swayne, Jie Shi Jul 2004

Possible Courses: Multi-Objective Modelling And Decision Support Using A Bayesian Network Approximation To A Nonpoint Source Pollution Model, David Swayne, Jie Shi

International Congress on Environmental Modelling and Software

Modelling systems frequently work in a single domain, such as physical or chemical process modelling, hydrology or combinations, to simulate process in nature such as pollution transport or the production of food or manufactured goods. Side-effects of agro-industrial processes, or gains / losses from production enterprises are separately modelled without the ability to examine trade-offs or alternatives. Multi-objective modeling attempts to combine "apples and oranges" through decision theoretical principles. Such treatments can couple production and waste systems to quantify the economic cost of remediation. We demonstrate such an application, from the data acquisition, model calibration through to the hypothesis testing, …


An Integrated Modelling Approach To Conduct Multifactorial Analyses On The Impacts Of Climate Change On Whole-Farm Systems., M. Rivington, Gianni Bellocchi, K. B. Matthews, K. Buchan Jul 2004

An Integrated Modelling Approach To Conduct Multifactorial Analyses On The Impacts Of Climate Change On Whole-Farm Systems., M. Rivington, Gianni Bellocchi, K. B. Matthews, K. Buchan

International Congress on Environmental Modelling and Software

Climate change impact studies on whole-farm systems require a holistic approach due to the complexities of biophysical processes, management and inter-relationships of land use within a single farm. This paper details the process of utilising a multiple-objective, strategic land use planning tool to conduct multi-factorial analyses on the impacts of climate change at the farm scale. Two example sites are given to illustrate the flexibility of the method: an upland mixed sheep and suckler cow farm in Scotland, with cold wet winters and cool moist summers; and a combined cropping and indoor reared beef farm in Italy, with cool moist …


Site Planning At Tamborine Mountain, Gold Coast, Australia, Christine Lim, Michael Mcaleer, Yu-Chi Wang Jul 2004

Site Planning At Tamborine Mountain, Gold Coast, Australia, Christine Lim, Michael Mcaleer, Yu-Chi Wang

International Congress on Environmental Modelling and Software

Tamborine Mountain is a 25 square kilometre plateau located within the urban-rural fringe of the Gold Coast, Queensland, Australia. Renowned for its superb climate, spectacular views, lush farmland and subtropical rainforest, Tamborine Mountain offers a wide variety of nature-based tourism activities such as bushwalking, rainforest appreciation and wine tasting. This phenomenon requires the harmonious development of tourism and the environment. This paper examines site planning at Tamborine Mountain, with a focus on two of its main tourist attractions, namely the Winery and National Parks. A strategic approach is used to evaluate some of the strengths and weaknesses of their existing …


Aphid Population Dynamics In Agricultural Landscapes: An Agent-Based Simulation Model, Hazel Parry, Andrew J. Evans, Derek Morgan Jul 2004

Aphid Population Dynamics In Agricultural Landscapes: An Agent-Based Simulation Model, Hazel Parry, Andrew J. Evans, Derek Morgan

International Congress on Environmental Modelling and Software

Presently, there are many population models in existence, but these are often case specific,function at a single spatial scale and fail to tackle the complexity arising from individual actions andinteractions that exist in the real-world. A spatially explicit agent-based simulation model has beendeveloped to represent aphid population dynamics in agricultural landscapes. Over time, the aphid agentsinteract with the landscape and with one another. The construction of the model is detailed, includingparameterisation and coupling to a geographical information system (GIS). The results show that a spatialmodelling approach that considers both landscape properties and factors such as wind speed and directionprovides greater …


Blank Pages Of The Holocaust: Gypsies In Yugoslavia During World War Ii, Elizabeta Jevtic Jul 2004

Blank Pages Of The Holocaust: Gypsies In Yugoslavia During World War Ii, Elizabeta Jevtic

Theses and Dissertations

After a general overview of the persecution of Gypsies (Roma) during World War II, this thesis focuses on the situation of Gypsies on the territory of Serbia and Croatia. The two republics are chosen because of their unique structures during the years 1941 to 1945. Both republics had puppet regimes set up by Germany; however, Croatia was an ally to Germany and strove to mirror the Third Reich in all its policies. The regime's head, Ante Pavelic, was known as one of the most brutal and merciless men on the territory of Yugoslavia, and with him Croatian paramilitary forces committed …


Die Zauberflöte: What's In A Title?, Harrison Powley Jul 2004

Die Zauberflöte: What's In A Title?, Harrison Powley

BYU Studies

Scholars have argued over Die Zauberflöte for many years. Is it a fairy-tale opera, a metaphorical discussion of Masonic and Rosicrucian beliefs, or a contemporary political or philosophical commentary on the 1780s and the Enlightenment? It can be all these and more, but for many in the audience during fall 1791 it was entertainment, pure and simple. The audience at the Theater auf der Weiden came from all levels of society. The nobility and educated attended as well as the working and servant classes.


Adaptation, Enactment, And Ingmar Bergman's Magic Flute, Dean W. Duncan Jul 2004

Adaptation, Enactment, And Ingmar Bergman's Magic Flute, Dean W. Duncan

BYU Studies

For all of its manifold musical glories, The Magic Flute was and is a theatrical work, meant for production and performance, and that repeatedly. As such, I will be concentrating on the opera's theatrical and cinematic elements. This article treats Ingmar Bergman's felicitous 1975 film adaptation of opera. Those inclined can find much to complain about in Bergman's cinematic version of Mozart's opera, but I would like to suggest that, with sympathy and openness, this complaining could give way to approval and great gratitude. In this Magic Flute, we have an interpretation worthy of its source, which is saying …


Assessing The Ecological Impacts Of Salinity Management Using A Bayesian Decision Network, A. Sadoddin, R. A. Letcher, Lachlan T. H. Newham Jul 2004

Assessing The Ecological Impacts Of Salinity Management Using A Bayesian Decision Network, A. Sadoddin, R. A. Letcher, Lachlan T. H. Newham

International Congress on Environmental Modelling and Software

This paper outlines a component of a study currently being undertaken to provide a new tool for the holistic management of dryland salinity. The Little River catchment in the upper Macquarie River basin of New South Wales (NSW), Australia, is used as a case study. The model uses a Bayesian Decision Network (BDN) approach to integrating the various system components – biophysical, social, ecological, and economic. The method of integration of the system components is demonstrated through an example application showing the impacts of various scenarios on terrestrial and riparian ecology. The paper outlines these scenarios and demonstrates the way …


Integrated Assessment Of Water Stress In Ceará, Brazil, Under Climate Change Forcing, Maarten S. Krol, Pieter R. Van Oel Jul 2004

Integrated Assessment Of Water Stress In Ceará, Brazil, Under Climate Change Forcing, Maarten S. Krol, Pieter R. Van Oel

International Congress on Environmental Modelling and Software

Surface water is the main source of fresh water supply in Ceará, lying in the semi-arid Northeast of Brazil.


Combining Dynamic Economic Analysis And Environmental Impact Modelling: Addressing Uncertainty And Complexity Of Agricultural Development, Heikki Lehtonen, Ilona Bärlund, Sirkka Tattari, Mikael Hilden Jul 2004

Combining Dynamic Economic Analysis And Environmental Impact Modelling: Addressing Uncertainty And Complexity Of Agricultural Development, Heikki Lehtonen, Ilona Bärlund, Sirkka Tattari, Mikael Hilden

International Congress on Environmental Modelling and Software

In this study the impacts of different agricultural policies on agricultural production and nutrient leaching from agricultural lands are evaluated using the economic DREMFIA agricultural sector model and a field scale nutrient transport model ICECREAM. DREMFIA includes an evolutionary scheme of technology diffusion which considers farm investments, evolving farm size structure and technological change explicitly. The technology diffusion model allows self-inforcing patterns of technical change driven by the spread of information and farmers’ knowledge related to different technological alternatives. Hence the long-term changes in agriculture due to policy changes may be essentially larger than those predicted by traditional static equilibrium …


Robustness Against Different Implementation Of Uncertainty In A Contingency Dss: The Prestige Oil Spill Revised, K. W. Wirtz, S. Adam, X. Liu, N. Baumberger Jul 2004

Robustness Against Different Implementation Of Uncertainty In A Contingency Dss: The Prestige Oil Spill Revised, K. W. Wirtz, S. Adam, X. Liu, N. Baumberger

International Congress on Environmental Modelling and Software

The dramatic consequences of oil or chemical spills for coastal ecosystems and economic uses make contingencymanagement a politically sensitive task. We here propose a new Decision Support System (DSS)consisting of a combination of modeling and evaluation methods with which different containment strategiescan be compared in the light of a variety of potential ecological and economic damages. In this study, the DSSis tested by hindcasting the Prestige accident off the coast of Spain in 2002. In particular, an oil spill contingencysimulation model coupled with multi-criteria analysis techniques was used to assess oil spill impacts forweather and current forecasts available at that …


On The Local Coexistence Of Species In Plant Communities, J. Yoshimura, K. Tainaka, M. Shiyomi, T. Suzuki Jul 2004

On The Local Coexistence Of Species In Plant Communities, J. Yoshimura, K. Tainaka, M. Shiyomi, T. Suzuki

International Congress on Environmental Modelling and Software

Coexistence of many competitive species is very common in natural plant communities. For example, almost all forests and grasslands consist of various species. Extremely high biodiversity is seen in tropical rain forests. Grassland communities also often consist of many species. In plant communities, spatially competitive species of plants coexist in a mosaic pattern. Communities with a single species are very extremely rare in nature. However, mathematical studies show that the local coexistence of spatially competitive species is rarely achieved even with two competitive species. Many studies have introduced external factors to promote coexistence, such as immigration of seeds, seed dormancy, …


Situated Cellular Agents For Crowd Simulation And Visualization, Stefania Bandini, Sara Manzoni, G. Vizzari Jul 2004

Situated Cellular Agents For Crowd Simulation And Visualization, Stefania Bandini, Sara Manzoni, G. Vizzari

International Congress on Environmental Modelling and Software

The paper presents a Multi Agent Systems (MAS) approach to crowd modelling, based on the Situated Cellular Agents (SCA) model. This is a special class of Multilayered Multi Agent Situated System (MMASS), rooted on Cellular Automata, providing an explicit spatial representation and the definition of adjacency geometries. The model also defines a concept of autonomous agent, provided with an internal architecture and individual state and behaviour, capable of different means of space–mediated interaction (synchronous, between adjacent agents, and asynchronous among distant entities). Heterogenous entities may be modelled through the specification of different agent types, defining different behaviours and perceptive capabilities. …


Generic Process-Based Plant Models For The Analysis Of Landscape Change, B. Reineking, A. Huth, C. Wissel Jul 2004

Generic Process-Based Plant Models For The Analysis Of Landscape Change, B. Reineking, A. Huth, C. Wissel

International Congress on Environmental Modelling and Software

The analysis of landscape change impacts on community composition and dynamics is difficult for species rich plant communities, because of their high complexity. One approach to deal with this challenge are generic process-based models. In these models, the species are described by a common set of parameters and functional responses. Thus, they allow both the integration of knowledge on key processes, and a common description for several ecological patterns. An important aspect of these models are trade-offs in the species’ physiological and life-history traits, which prevent ‘super-species’ that dominate under all environmental conditions. We compare process-based models with two other …


Numerical Modelling For Studying The Impact Of Urban Air Pollution In Natural Reserves Around Setúbal City, C. Gouveia, R. Cerdeira, J. M. Garcia, M. Nogueira, L. M. R. Coelho Jul 2004

Numerical Modelling For Studying The Impact Of Urban Air Pollution In Natural Reserves Around Setúbal City, C. Gouveia, R. Cerdeira, J. M. Garcia, M. Nogueira, L. M. R. Coelho

International Congress on Environmental Modelling and Software

Numerical modelling was used to study the impact of urban air pollution from Setúbal City intwo important natural reserves. Setúbal is a city in the middle south Portugal with a large residentpopulation, important industry and intense traffic activities. There is an important harbour, which isresponsible for intense heavy vehicle traffic. Setúbal is surrounded by two natural reserves, a mountain(Arrábida) and a river delta (Sado River). There is also an important tourist zone near Setúbal withimportant beaches and tourist activities. The main pollutants considered in this study were SO2, Particles,NOx, CO, and VOC. A range of numerical models there was used …


Assessing Management Systems For The Conservation Of Open Landscapes Using An Integrated Landscape Model Approach, M. Rudner, R. Biedermann, B. Schröder, M. Kleyer Jul 2004

Assessing Management Systems For The Conservation Of Open Landscapes Using An Integrated Landscape Model Approach, M. Rudner, R. Biedermann, B. Schröder, M. Kleyer

International Congress on Environmental Modelling and Software

The aim of the MOSAIK-project is to test alternative management systems regarding theirefficiency in maintaining the characteristic species composition of dry grasslands. We present an integratedlandscape model approach to test an alternative management system for applicability in preserving drygrasslands. By rototilling, i.e. cyclic, massive disturbance in the vegetation cover, we established a controlledmosaic cycle comprising a successional series from heavily disturbed areas to grassland and shrubs. Thedisturbance regime affects the landscape on different temporal and spatial scales. The resulting shiftingmosaics determine the habitat qualities for plant and animal species. Changes in habitat quality may reducethe survival of local or regional …


A Model Based On Cellular Automata For The Simulation Of The Dynamics Of Plant Populations, Stefania Bandini, Giulio Pavesi Jul 2004

A Model Based On Cellular Automata For The Simulation Of The Dynamics Of Plant Populations, Stefania Bandini, Giulio Pavesi

International Congress on Environmental Modelling and Software

We present a Cellular Automata based model for the simulation of the dynamics of plant populations.The evolution of a plant population in a given area mainly depends on the resources available on the territory(in turn influenced by other factors like sunlight, rain, temperature, and so on) and how different individuals(plants) compete for them. Traditional methods used in this field are continuous and based on differentialequations that model the global evolution of the system: unfortunately, most of the data needed to providereliable parameters for these models are usually scarce and difficult to obtain. The model we present is insteadthought in a …