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The College Redeemer, V2 I8, University Of Northern Iowa

College Redeemer

The College Redeemer - An alternative publication at the University of Northern Iowa published monthly since September of 2001.

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Genealib Archive 2002-07, Genealib

GENEALIB Archive

No abstract provided.

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Characterization Of Salmonella Serovars By Pcr–Single-Strand Conformation Polymorphism Analysis, S. Nair, Kwai Lin Thong, T. Pang, M. Altwegg

Research Publications (2000 to 2005)

PCR-restriction fragment length polymorphism (PCR-RFLP) and PCR–single-strand conformation polymorphism (PCR-SSCP) analyses were carried out on the 1.6-kb groEL gene from 41 strains of 10 different Salmonella serovars. Three HaeIII RFLP profiles were recognized, but no discrimination between the serovars could be achieved by this technique. However, PCR-SSCP analysis of the groEL genes of various Salmonella serovars produced 14 SSCP profiles, indicating the potential of this technique to differentiate different Salmonella serovars (interserovar differentiation). Moreover, PCR-SSCP could differentiate strains within a subset of serovars (intraserovar discrimination), as three SSCP profiles were produced for the 11 Salmonella enterica serovar Enteritidis strains, and …

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Newscope - Summer 2002

Newscope

No abstract provided.

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Animal Diet Modification To Decrease The Potential For Nitrogen And Phosphorus Pollution, Terry J. Klopfenstein, Rosalina Angel, Gary Cromwell, Galen E. Erickson, Danny G. Fox, Carl Parsons, Larry D. Satter, Alan L. Sutton, David H. Baker, Austin Lewis, Deanne Meyer

Department of Animal Science: Faculty Publications

In 1996, the Council for Agricultural Science and Technology (CAST) published a report entitled Integrated Animal Waste Management. One of the recommendations in that report was to “change animal diets to decrease nutrient outputs” (CAST 1996, 1). Since that time, concentration of animal production units has continued, public concern about the environmental effects of animal manure has increased, and the Environmental Protection Agency (EPA) has proposed more restrictive requirements for concentrated animal feeding operations (CAFO regulations).

Progress has been made since 1996 to decrease nutrient outputs by animals through diet modification and nutrition. The current study describes the existing …

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Vytis, Volume 88, Issue 4 (July 2002), Knights Of Lithuania

Vytis: The Newsletter of the Knights of Lithuania

Newsletter of the Knights of Lithuania national organization (United States); digitized and made available with the permission of the organization. Content may be protected by copyright.

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Preservacão De Micélio De Batkoa Sp. E. Furia Sp. (Entomophthorales) Em Combinaçao Com Dessecantes E Rudutores De Oxigênio, Luis G. Leite, Sérgio B. Alves, Antonio Batista Filho, J. E. M. Almeida, Donald W. Roberts

Biology Faculty Publications

PRESERVATION OF BATKOA SP. AND FURIA SP. (ENTOMOPHTHORALES )DRY MYCELIUM WITH COMBINATIONS OF DESICCANTS AND OXYGEN REDUCERS. Formulation is the most difficult part of Entomophthorales development as biopesticides and bioacaricides, and has caused difficulty in evaluating the Batkoa sp. and Furia sp. for the control of the cercopids Mahanarva fimbriolata and Deois schach, pests of sugar-cane and pastures. A technique for producing dry mycelium of Entomophthorales was previously developed to allow for field use of these fungi, but pathogen preservation (shelf life) was not satisfactory. Due to these difficulties, the research reported here aimed to evaluate the effect of combinations …

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The Iclips Impacts Tool: Presenting Climate Impact Response Functions For Integrated Assessments Of Climate Change, Hans-Martin Fussel

International Congress on Environmental Modelling and Software

The ICLIPS model is an integrated assessment model of climate change that links global climate change with regional impacts and mitigation efforts by integrating components from different disciplines and various spatial scales. Its reduced–form impact module consists of climate impact response functions (CIRFs) that depict the regional sensitivity of selected climate–sensitive impact sectors to changes in important climatic and atmospheric drivers. In addition to enabling the specification of maximum “tolerable” impacts of climate change in a tolerable windows analysis with the ICLIPS model, the CIRFs are also a valuable information source in their own right. In this paper, I present …

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Efficient Compensation Payments For The Protection Of Species: Application Of An Ecological-Economic Model, Martin Drechsler, Karin Johst, Frank Wätzold

International Congress on Environmental Modelling and Software

We present an ecological-economic modelling procedure to design compensation payments for species protection. In order to find an ecologically effective and economically efficient design, we choose an interdisciplinary approach that combines both ecological and economic knowledge. We develop our procedure on the example of White Stork protection in a spatio-temporally structured landscape generated by human land use. The ecological knowledge is synthesised in a simulation model, which includes the energy balance of individual storks, and their foraging behaviour to determine the effectiveness of land use practices measured by the number of surviving nestlings. Cost data of different land-use patterns are …

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A Decision Support Gis For The Clean Water Act Permit Review Analysis, Wei (Wayne) Ji, Rima A. Wahab, Jia (Jane) Ma

International Congress on Environmental Modelling and Software

Section 404 of the Clean Water Act is the primary federal statute of the United States that regulates the discharge of dredged or fill materials into lakes, rivers, and wetlands. The Section 404 permit review process involves comprehensive assessments of physical, biological, ecological, and socioeconomic impacts of potential human alterations on aquatic ecosystems across spatial scales. Such assessments require the integration of management decision-making with innovative data handling techniques and assessment methodology. The Section 404-permit process is often hindered by the lack of well-developed scientific information and the technical tools for efficient data analysis. The individual permit review frequently becomes …

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Catchment Modelling – A Resource Manager’S Perspective, J.E. Caminiti

International Congress on Environmental Modelling and Software

Models are invaluable tools for resource management. Models help resource managers develop a shared conceptual understanding of complex natural systems, allow testing of management scenarios, predict outcomes of high risk and high cost environmental manipulations, and set priorities. Catchment modelling is a specialist field, and different modelling approaches are specialist areas in themselves. There are a plethora of models available that apply to integrated catchment management, from micro to landscape scales, from deterministic models to broad-brush models. Different philosophies abound; with some experts advocating top-down systems approaches and others who dismiss these as being too uncertain and based on opinion …

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A Comparison Of Model Structures For The Simulation Of Amphipod (Talitrus Saltator) Population Dynamics., P. M. Anastácio, S. C. Gonçalves, M. A. Pardal, J. C. Marques

International Congress on Environmental Modelling and Software

A dynamic model is proposed in order to simulate sandhopper (Talitrus saltator) populationdynamics under various scenarios. It was built under the Stella simulation software and so far it has attainedthe calibration and verification stages. The basic structure of the model depends on the simulation of thenumber of animals in each age class (45 days). A von Bertalanffy growth curve has been adjusted to thetreated field data. From this equation another one expressing the instantaneous growth rate was extracted andused to calculate the growth. The number of individuals in each age class increases due to the ageing processi.e. new individuals coming …

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Designing A Multi-Agent System For Integrated Protection In Agriculture, A. Perini, A. Susi

International Congress on Environmental Modelling and Software

Integrated Protection (IP) in agriculture consists of a set of practices aimed at favoring the set upof a development model characterized by a reduced environmental impact. The application of IP practicesin plant disease management by growers and agronomists requires both specialistic skills, historical data andinformation on chemicals and on low impact techniques for pest management. These sources of informationand knowledge are distributed among different actors in the agriculture production system.Recent approaches in developing decision support systems for agriculture, and more generally for environmentalproblems management, tend to adopt a “systemic” approach. That is to say a problem is considered for itsdependencies …

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Intelligent Model Management In A Forest Ecosystem Management Decision Support System, Donald Nute, Walter D. Potter, Frederick Maier, Jin Wang, Mark Twery, H. M. Rauscher, Peter Knopp, Scott Thomasma, Mayukh Dass, Hajime Uchiyama

International Congress on Environmental Modelling and Software

Decision making for forest ecosystem management can include the use of a wide variety of modeling tools. These tools include vegetation growth models, wildlife models, silvicultural models, GIS, and visualization tools. NED-2 is a robust, intelligent, goal-driven decision support system that integrates tools in each of these categories. NED-2 uses a blackboard architecture and a set of semi-autonomous agents to manage these tools for the user. The blackboard integrates a Microsoft Access database and Prolog clauses, and the agents are implemented in Prolog. A graphical user interface written in Visual C++ provides powerful inventory analysis tools; dialogs for selecting timber, …

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Feeding Elk In Greater Yellowstone: A Case Study In Ex-Ante Group Decision Support, Lynne Caughlan, D.L. Hoag

International Congress on Environmental Modelling and Software

Natural resource management decisions are complicated by multiple property rights, management objectives, and stakeholders with varying degrees of influence over the decision making process. Managers must consider all opinions when they develop management policies. Often this type of information is not understood until after a decision has been made, which can result in wasted time and effort. We developed an institutional framework to predict stakeholders’ influence in the resource management decision-making process before the stakeholder meetings actually occur. Then we applied the framework to an actual case study concerning whether to feed elk over the winter in the Greater Yellowstone …

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Classifying Environmental System Situations By Means Of Case-Based Reasoning: A Comparative Study, Héctor Núñez, Miquel Sànchez-Marrè, Ulises Cortés, Quim Comas, Montse Martínez, Manel Poch

International Congress on Environmental Modelling and Software

The step of identifying to which class of operational situation belongs the current Environmental System situation is a key element to build successful Environmental Decision Support Systems (EDSS). Case-Based Reasoning (CBR) is a good technique to solve new problems based in previous experience. Main assumption in CBR relies in the hypothesis that similar problems should have similar solutions. When working with labelled cases, the retrieval step in CBR cycle can be seen as a classification task. The new cases will be labelled (classified) with the label (class) of the most similar case retrieved from the Case Base. In Environmental Systems, …

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The Streames Project: Linking Heuristic And Empirical Knowledge Into An Expert System To Assess Stream Managers, Joaquim Comas, Esther Llorens, Manel Poch, G. Markakis, T. Battin, S. Gafny, E. Maneux, E. Martí, M. Morais, M. A. Puig, M. Pusch, J. L. Riera, F. Sabater, A. G. Solimini, P. Vervier

International Congress on Environmental Modelling and Software

The increase in stream nutrient loads from anthropogenic sources has become a serious problem, especially in developed regions. Humans affect streams by modifying the landscape in ways that increase the transport of nutrients to surface waters, by directly dumping urban or industrial sewage into the stream, or by modifying streams in ways that reduce their ability to respond to increased nutrient loads. In Mediterranean regions these problems are compounded by the scarcity of water. The decision-making processes involved in water quality management require extensive human expertise or extensive computation with large data sets. In this sense, the STREAMES project aims …

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Environmental Foresight And Structural Change, M. B. Beck

International Congress on Environmental Modelling and Software

Policy-makers and the public, it has famously been said [Brooks, 1986], are more interested in the possibility of non-linear dislocations and surprises in the behavior of the environment than in smooth extrapolations of current trends. How indeed should we design our models to generate environmental foresight, to detect, in particular, threats to our environment lying “just beyond the horizon”? In facing this prospect of potentially profound dislocations in behavior, the problem is that the number of state variables in the model, whether they interact, how they interact, and the form of their interactions, may be evolving over time. What may …

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Contaminated Industrial Sites, Real-Time Monitoring, Knowledge-Based Systems, Modelling, Knowledge Acquisition, Alexander Komarov, Oleg Chertov, G. Andrienko, N. Andrienko, Alexey Mikhailov, P. Gatalsky

International Congress on Environmental Modelling and Software

Decision support in sustainable forest management (SFM) has some specific features: a) it can perform quantitative prediction of forest ecosystem dynamics under different scenarios of SFM; b) it can spatially combine the predictions of different scenarios on the territory of a forest unit to support decisionmaking. We represent the integration of simulation modelling with the exploratory spatial data analysis (ESDA). The EFIMOD 2 is a spatially explicit individual-based ecosystem model, which was run for simulation of forest ecosystem dynamics at stand level on the territory of a state forest in Central European Russia. The DESCARTES software system designed to support …

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Ecosystem As A Text: Semantic Analysis Of The Global Vegetation Pattern, Yuri Svirezhev

International Congress on Environmental Modelling and Software

Let us consider a text, which is written by Russian language. At the first level of reception we know only a number of letters. Then the information per one letter I1=5bits. At the second level of perception we take into account the frequencies of letters then I2=4.35bits. At the next levels, when we take into account double, triple, etc. correlations, we get I3=3.5bits, I4=3bits, etc. Then the redundancy of information at each level, Ri=1-Ii/I1, is equal to R1=0, R2=0.13, R3=0.3, R4=0.4, etc. By defining the cost of information as a degree of non-redundancy, Ci=1/(1-Ri) we get C1=1 C2=1.15, C3=1.43, C4=1.67, …

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A Conceptual Model For Integrated Assessment, Markus Knoflacher

International Congress on Environmental Modelling and Software

The challenge of integrated assessment is the integration of scientific and social aspects for the preparation of decisions. On one hand it is necessary to find scientific and technologically sound solutions, on the other hand the results should meet the interests of social groups affected by the particular project. In large projects it is also necessary to consider the effects on sustainable development. The bandwidth of the different aspects is in practise confronted with problems in acquisition of data, inhomogeneity and incompleteness of information about the actual conditions and the effects of the project. To solve the task in a …

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Trees, Dendrograms And Sensitivity, R. D. Braddock

International Congress on Environmental Modelling and Software

Dendrograms and minimum-weight spanning trees (MWST) are discrete structures which arise inclustering theory, networks, and where strategic choices are made between discrete options. The discrete structureof the solution tree varies discontinuously with respect to changes in the dissimilarity or cost matrix. Tarjan[1982] has obtained bounds on the changes to the elements of the cost matrix, where the structure is not altered.These results are extended to describe the sensitivity of the tree structure with respect to changes in the costmatrix. The sensitivity of the structure to the addition of a node and arcs is solved using potential loops in thetree. This …

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Integrated Systems Analysis And Sustainable Development, Tad Soroczynski

International Congress on Environmental Modelling and Software

The paper presents integrated systems analysis (ISA) as a "tool" for modelling and for thedevelopment of decision support systems (DSS). ISA enhances understanding of the complex relationshipsbetween different disciplines in the form of inputs fi transformations fi outputs and also facilitates anunderstanding of the term sustainable development. Further, the paper presents a definition and model of ISAand discusses performance of component systems or distribution patterns in relation to a time horizon. Somecomponent systems create constraints and impact other component systems which over time undergotransformations such as self-organisation and self-regulation. Some component systems may adopt a distributionpattern as an output. Therefore, …

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Indirect Effect Of Habitat Destruction On Ecosystems, Nariyuki Nakagiri, K. Tainaka

International Congress on Environmental Modelling and Software

Habitat destruction is one of the primary causes of species extinction in recent history. Even if the destruction is restricted to a local and small area, its accumulation increases the risk of extinction. To study local destruction of habitat, we present a lattice ecosystem composed of prey (X) and predator (Y). This system corresponds to a lattice version of the Lotka-Volterra model, where interaction is allowed between neighboring lattice points. The lattice is partly destroyed, and destructed sites or barriers are randomly located between adjacent lattice points with the probability p. The barrier interrupts the reproduction of X, but the …

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Three-Dimensional Modelling Of A Microcystis Bloom Event In A Western Australian Estuary, Barbara J. Robson, David P. Hamilton

International Congress on Environmental Modelling and Software

In January 2000, there was a record maximum rainfall throughout much of the watershed of the Swan River estuary, leading to the first reported Microcystis aeruginosa bloom in the estuary. Peak cell counts reached over 100,000 cells mL-1. A coupled three-dimensional hydrodynamic-ecological model, ELCOM-CAEDYM, is applied to the period of development and subsequent decline of the bloom. The model, previously calibrated for a more typical year (1995), accurately reproduced the unusual hydrodynamic circumstances and predicted the magnitude and timing of the Microcystis bloom. Salinity and temperature were the primary factors controlling the growth of Microcystis during the period of interest. …

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Modeling And Analysis Of Biofilms Formation And Evolution In Wastewater Treatment Processes Using Multi-Agent Systems, Laurent Lardon, Jean-Philippe Steyer, Nicolas Bernet, Christophe Le Page

International Congress on Environmental Modelling and Software

Biofilms are complex but omnipresent and industrially important structures. Many studies were devoted to build mathematical models for biofilm analysis but most of them were based on classical continuous approaches. On the other side, only very few studies were directly based on the functional mechanisms to obtain virtual systems which mimic the descriptive observations and allow to predict the state of a biofilm and its possible evolution. This paper will present a non-classical approach based on multi-agent systems for the analysis of biofilm formation. This model shows the spatial repartition of biomass within the biofilm and the impact of the …

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Modelling Contrasted Management Behaviours Of Stakeholders Facing A Pine Encroachment Process: An Agent-Based Simulation Approach, Michel Etienne, Christophe Le Page

International Congress on Environmental Modelling and Software

In Southern France, the Causse Méjan is a natural ecosystem of high biological diversity. Sheep farmers, foresters, and a National Park are interacting in this land subject to pine encroachment by Pinus sylvestris and P. nigra at different temporal and spatial scales. The stakeholders are concerned by this global biological process although it affects their management goals (sheep production, timber production, nature conservation) in very different ways. An agent-based model has been built with the Cormas platform. Vegetation changes in terms of structure, composition and productivity were simulated by a cellular automata that was initialised as a spatial grid of …

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The Role Playing Games In An Abm Participatory Modeling Process: Outcomes From Five Different Experiments Carried Out In The Last Five Years, Patrick D’Aquino, Olivier Barreteau, Michel Etienne, Stanislas Boissau, Sigrid Aubert

International Congress on Environmental Modelling and Software

Since 1996, we have used Role Playing Games (RPG) with our Multi-Agent System (MAS) platform, CORMAS (Bousquet et al. 1998), in different experiments about local land use management, water management, negotiations between foresters and breeders, and preservation of wild genetic resources by local peasants. Each experiment tested a different sort of coupling between RPG and CORMAS, from a RPG simply explaining the MAS model to a RPG strongly evolving in the different steps of the modeling itself. Each experiment tested also different objectives for this linking, from the improvement of the modeler's knowledge about the issue to the support of …

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Hoofs - A Multi-Scale, Agent-Based Simulation Framework For Studying The Impact Of Grazing Animals On The Environment, J. A. Beecham, S. P. Oom, C. P. D. Birch

International Congress on Environmental Modelling and Software

An agent based system (HOOFS) has been developed in order to examine the interactions between foraging animals and a spatially explicit description of the environment, including vegetation growth processes. HOOFS makes use of the agent-based approach to develop a model of foraging in which animal decision making processes are explicitly modelled. The model has evolved from one where foraging decisions are based on a simple biased random walk model with an information weighting parameter, through one in which animals decide between direct walking towards an object as against continuous foraging, ending with a model where memory is used. The model …

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Comparison Between Water Quality Models For Toxics, C. Gualtieri

International Congress on Environmental Modelling and Software

Water quality models have been applied increasingly to represent the interaction between pollutants and aquatic environment due to transport and transformation phenomena: These models can be used to better understand pollution phenomena and to choose between different, alternative management strategies. The paper compares the results of two different water quality models, which have been applied to a water column-sediments system of a lake with an inflow contaminant loading. In the former, the system is idealized as well-mixed surface-water underlain by a well-mixed active sediment layer, where the resulting concentrations are attained by direct analytical solutions at the steady-state and in …

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Full-Text Articles in Entire DC Network

The College Redeemer, V2 I8, University Of Northern Iowa

College Redeemer

Genealib Archive 2002-07, Genealib

GENEALIB Archive

Characterization Of Salmonella Serovars By Pcr–Single-Strand Conformation Polymorphism Analysis, S. Nair, Kwai Lin Thong, T. Pang, M. Altwegg

Research Publications (2000 to 2005)

Newscope - Summer 2002

Newscope

Animal Diet Modification To Decrease The Potential For Nitrogen And Phosphorus Pollution, Terry J. Klopfenstein, Rosalina Angel, Gary Cromwell, Galen E. Erickson, Danny G. Fox, Carl Parsons, Larry D. Satter, Alan L. Sutton, David H. Baker, Austin Lewis, Deanne Meyer

Department of Animal Science: Faculty Publications

Vytis, Volume 88, Issue 4 (July 2002), Knights Of Lithuania

Vytis: The Newsletter of the Knights of Lithuania

Preservacão De Micélio De Batkoa Sp. E. Furia Sp. (Entomophthorales) Em Combinaçao Com Dessecantes E Rudutores De Oxigênio, Luis G. Leite, Sérgio B. Alves, Antonio Batista Filho, J. E. M. Almeida, Donald W. Roberts

Biology Faculty Publications

The Iclips Impacts Tool: Presenting Climate Impact Response Functions For Integrated Assessments Of Climate Change, Hans-Martin Fussel

International Congress on Environmental Modelling and Software

Efficient Compensation Payments For The Protection Of Species: Application Of An Ecological-Economic Model, Martin Drechsler, Karin Johst, Frank Wätzold

International Congress on Environmental Modelling and Software

A Decision Support Gis For The Clean Water Act Permit Review Analysis, Wei (Wayne) Ji, Rima A. Wahab, Jia (Jane) Ma

International Congress on Environmental Modelling and Software

Catchment Modelling – A Resource Manager’S Perspective, J.E. Caminiti

International Congress on Environmental Modelling and Software

A Comparison Of Model Structures For The Simulation Of Amphipod (Talitrus Saltator) Population Dynamics., P. M. Anastácio, S. C. Gonçalves, M. A. Pardal, J. C. Marques

International Congress on Environmental Modelling and Software

Designing A Multi-Agent System For Integrated Protection In Agriculture, A. Perini, A. Susi

International Congress on Environmental Modelling and Software

Intelligent Model Management In A Forest Ecosystem Management Decision Support System, Donald Nute, Walter D. Potter, Frederick Maier, Jin Wang, Mark Twery, H. M. Rauscher, Peter Knopp, Scott Thomasma, Mayukh Dass, Hajime Uchiyama

International Congress on Environmental Modelling and Software

Feeding Elk In Greater Yellowstone: A Case Study In Ex-Ante Group Decision Support, Lynne Caughlan, D.L. Hoag

International Congress on Environmental Modelling and Software

Classifying Environmental System Situations By Means Of Case-Based Reasoning: A Comparative Study, Héctor Núñez, Miquel Sànchez-Marrè, Ulises Cortés, Quim Comas, Montse Martínez, Manel Poch

International Congress on Environmental Modelling and Software

The Streames Project: Linking Heuristic And Empirical Knowledge Into An Expert System To Assess Stream Managers, Joaquim Comas, Esther Llorens, Manel Poch, G. Markakis, T. Battin, S. Gafny, E. Maneux, E. Martí, M. Morais, M. A. Puig, M. Pusch, J. L. Riera, F. Sabater, A. G. Solimini, P. Vervier

International Congress on Environmental Modelling and Software

Environmental Foresight And Structural Change, M. B. Beck

International Congress on Environmental Modelling and Software

Contaminated Industrial Sites, Real-Time Monitoring, Knowledge-Based Systems, Modelling, Knowledge Acquisition, Alexander Komarov, Oleg Chertov, G. Andrienko, N. Andrienko, Alexey Mikhailov, P. Gatalsky

International Congress on Environmental Modelling and Software

Ecosystem As A Text: Semantic Analysis Of The Global Vegetation Pattern, Yuri Svirezhev

International Congress on Environmental Modelling and Software

A Conceptual Model For Integrated Assessment, Markus Knoflacher

International Congress on Environmental Modelling and Software

Trees, Dendrograms And Sensitivity, R. D. Braddock

International Congress on Environmental Modelling and Software

Integrated Systems Analysis And Sustainable Development, Tad Soroczynski

International Congress on Environmental Modelling and Software

Indirect Effect Of Habitat Destruction On Ecosystems, Nariyuki Nakagiri, K. Tainaka

International Congress on Environmental Modelling and Software

Three-Dimensional Modelling Of A Microcystis Bloom Event In A Western Australian Estuary, Barbara J. Robson, David P. Hamilton

International Congress on Environmental Modelling and Software

Modeling And Analysis Of Biofilms Formation And Evolution In Wastewater Treatment Processes Using Multi-Agent Systems, Laurent Lardon, Jean-Philippe Steyer, Nicolas Bernet, Christophe Le Page

International Congress on Environmental Modelling and Software

Modelling Contrasted Management Behaviours Of Stakeholders Facing A Pine Encroachment Process: An Agent-Based Simulation Approach, Michel Etienne, Christophe Le Page

International Congress on Environmental Modelling and Software

The Role Playing Games In An Abm Participatory Modeling Process: Outcomes From Five Different Experiments Carried Out In The Last Five Years, Patrick D’Aquino, Olivier Barreteau, Michel Etienne, Stanislas Boissau, Sigrid Aubert

International Congress on Environmental Modelling and Software

Hoofs - A Multi-Scale, Agent-Based Simulation Framework For Studying The Impact Of Grazing Animals On The Environment, J. A. Beecham, S. P. Oom, C. P. D. Birch

International Congress on Environmental Modelling and Software

Comparison Between Water Quality Models For Toxics, C. Gualtieri

International Congress on Environmental Modelling and Software