Modelling of Patterns in Space and Time

PREFACE This volume contains a selection of papers presented at the workshop "Modelling of Patterns in Space and Time", organized by the Sonderforschungsbereich 123, "Stochastische Mathematische Modelle", in Heidelberg, July 4-8, 1983.

Modelling of Patterns in Space and Time

This volume contains a selection of papers presented at the work shop "Modelling of Patterns in Space and Time", organized by the 80nderforschungsbereich 123, "8tochastische Mathematische Modelle", in Heidelberg, July 4-8, 1983. The main aim of this workshop was to bring together physicists, chemists, biologists and mathematicians for an exchange of ideas and results in modelling patterns. Since the mathe matical problems arising depend only partially on the particular field of applications the interdisciplinary cooperation proved very useful. The workshop mainly treated phenomena showing spatial structures. The special areas covered were morphogenesis, growth in cell cultures, competition systems, structured populations, chemotaxis, chemical precipitation, space-time oscillations in chemical reactors, patterns in flames and fluids and mathematical methods. The discussions between experimentalists and theoreticians were especially interesting and effective. The editors hope that these proceedings reflect at least partially the atmosphere of this workshop. For the convenience of the reader, the papers are ordered alpha betically according to authors. However, the table of contents can easily be grouped into the main topics of the workshop. For practical reasons it was not possible to reproduce in colour the beautiful pictures of patterns shown at the workshop. Since a larger number of half-tone pictures could be included in this volume, the loss of information has, however, been kept to a minimum. The workshop has already stimulated cooperation between its parti cipants and this volume is intended to spread this effect.

Handbook of Environmental and Ecological Statistics

into the model through the model parameters using Bayesian hierarchical modeling techniques. 17.2.3 Models for fire incidence and fire frequency data Treating satellite data as point patterns in space and time and modelling them by ...

Handbook of Environmental and Ecological Statistics

This handbook focuses on the enormous literature applying statistical methodology and modelling to environmental and ecological processes. The 21st century statistics community has become increasingly interdisciplinary, bringing a large collection of modern tools to all areas of application in environmental processes. In addition, the environmental community has substantially increased its scope of data collection including observational data, satellite-derived data, and computer model output. The resultant impact in this latter community has been substantial; no longer are simple regression and analysis of variance methods adequate. The contribution of this handbook is to assemble a state-of-the-art view of this interface. Features: An internationally regarded editorial team. A distinguished collection of contributors. A thoroughly contemporary treatment of a substantial interdisciplinary interface. Written to engage both statisticians as well as quantitative environmental researchers. 34 chapters covering methodology, ecological processes, environmental exposure, and statistical methods in climate science.

Theory of Markets

For this book an al ternative and more comprehensive title would be: An investigation of spatial arbitrage as an introduction to the theory of commodity markets: trade and space-time patterns of price fluctuations.

Theory of Markets

Book titles, because they are compromises between concision and precision, provide but an approximate description of real content. For this book an al ternative and more comprehensive title would be: An investigation of spatial arbitrage as an introduction to the theory of commodity markets: trade and space-time patterns of price fluctuations. In this title, both the specificities and the limitations of our approach are emphasized. Firstly, our approach con centrates on the basic mechanisms of spatial arbitrage, leaving aside a number of accessory facets of international trade such as the impact of quotas or of ex change rates. Secondly, for the sake of simplicity we restrict ourselves to single commodity markets; the interrelationship of different goods on multi-commodity markets are only occasionally mentioned. The previous restrictions, however drastic they may at first appear delimit and define what can be considered as the core of the process of trade and of spatial transactions. Having thus simplified the object of our study, we are able to tackle the problem in a systematic way and to model spatial differentials along with their relationships to the volume of trade both in eqUilibrium and in non-equilibrium situations. As far as the subtitle of the book is concerned, we shall postpone the discussion of what is meant by the expression "analytical economics" until the concluding chapter.

Artificial Life Models in Software

8.29 Space-time patterns of a 1D binary CA, [v, k] = [2,3], n = 51, rule 90. Twenty four time-steps from an initial state with a single central 1. Two alternative presentations are shown. Left: cells by value.

Artificial Life Models in Software

The advent of powerful processing technologies and the advances in software development tools have drastically changed the approach and implementation of computational research in fundamental properties of living systems through simulating and synthesizing biological entities and processes in artificial media. Nowadays realistic physical and physiological simulation of natural and would-be creatures, worlds and societies becomes a low-cost task for ordinary home computers. The progress in technology has dramatically reshaped the structure of the software, the execution of a code, and visualization fundamentals. This has led to the emergence of novel breeds of artificial life software models, including three-dimensional programmable simulation environment, distributed discrete events platforms and multi-agent systems. This second edition reflects the technological and research advancements, and presents the best examples of artificial life software models developed in the World and available for users.

Neural Networks for Hydrological Modeling

Indeed, in both network training, and network application operations, the input-output patterns are processed in an ... In discrete time, a state space model is characterised with a time propagation mechanism, wherein the system state ...

Neural Networks for Hydrological Modeling

A new approach to the fast-developing world of neural hydrological modelling, this book is essential reading for academics and researchers in the fields of water sciences, civil engineering, hydrology and physical geography. Each chapter has been written by one or more eminent experts working in various fields of hydrological modelling. The b

Proceedings of the International Symposium on Computer Mapping in Epidemiology and Environmental Health

Both of these functions can be estimated separately from the observed point pattern . Thus one possible exploratory tool for space - time interaction is the function : D ( dt ) = K ( d , t ) -K . ( d ) K , ( t ) We can estimate this ...

Proceedings of the International Symposium on Computer Mapping in Epidemiology and Environmental Health


New Trends in Nonlinear Dynamics and Pattern Forming Phenomena

... localized structures, 86 Phase modes, 200 Phase modulation, space-time patterns, 127-133 Phase perturbations, ... also Spatiotemporal intermittency from chaos to quasiregular patterns, 89-92 probabilistic cellular automaton models, ...

New Trends in Nonlinear Dynamics and Pattern Forming Phenomena

The basic aim of the NATO Advanced Research Workshop on "New Trends in Nonlinear Dynamics and Pattern-Forming Phenomena: The Geometry of Nonequilibrium" was to bring together researchers from various areas of physics to review and explore new ideas regarding the organisation of systems driven far from equilibrium. Such systems are characterized by a close relationship between broken spatial and tempo ral symmetries. The main topics of interest included pattern formation in chemical systems, materials and convection, traveling waves in binary fluids and liquid crystals, defects and their role in the disorganisa tion of structures, spatio-temporal intermittency, instabilities and large-scale vortices in open flows, the mathematics of non-equilibrium systems, turbulence, and last but not least growth phenomena. Written contributions from participants have been grouped into chapters addressing these different areas. For additional clarity, the first chapter on pattern formation has been subdivided into sections. One of the main concerns was to focus on the unifying features between these diverse topics. The various scientific communities repre sented were encouraged to discuss and compare their approach so as to mutually benefit their respective fields. We hope that, to a large degree, these goals have been met and we thank all the participants for their efforts. The workshop was held in Cargese (Corsica, France) at the Institut d'Etudes Scientifiques from August 2nd to August 12th, 1988. We greatly thank Yves Pomeau and Daniel Walgraef who, as members of the organising committee, gave us valuable advice and encouragements.

Spatial Ecology and Conservation Modeling

Space-time analysis of point patterns is an active and developing area of research (Cressie and Wikle 2011). In the simplest case, one could consider time of an event (e.g., Julian date of predation on a nest) as a continuous mark to ...

Spatial Ecology and Conservation Modeling

This book provides a foundation for modern applied ecology. Much of current ecology research and conservation addresses problems across landscapes and regions, focusing on spatial patterns and processes. This book is aimed at teaching fundamental concepts and focuses on learning-by-doing through the use of examples with the software R. It is intended to provide an entry-level, easily accessible foundation for students and practitioners interested in spatial ecology and conservation.

Geo Informatics in Resource Management and Sustainable Ecosystem

The R computation package for point process model in seismic study allows 3D space-time computation with visual and simulation ... with an expectation of a more accurate and close simulation of seismic pattern in a space-time context.

Geo Informatics in Resource Management and Sustainable Ecosystem

This volume constitutes the refereed proceedings of the Second International Conference on Geo-Informatics in Resource Management and Sustainable Ecosystem, GRMSE 2014, held in Ypsilanti, MI, China, in December 2014. The 73 papers presented were carefully reviewed and selected from 296 submissions. The papers are divided into topical sections on smart city in resource management and sustainable ecosystem; spatial data acquisition through RS and GIS in resource management and sustainable ecosystem; ecological and environmental data processing and management; advanced geospatial model and analysis for understanding ecological and environmental process; applications of geo-informatics in resource management and sustainable ecosystem.

Space Time and Number in the Brain

Population clock models propose that motor timing arises from the time-varying activity of a population of neurons. ... this provides a powerful mechanism to generate a large number of timed motor patterns (Figs 6.1, 6.2).

Space  Time and Number in the Brain

The study of mathematical cognition and the ways in which the ideas of space, time and number are encoded in brain circuitry has become a fundamental issue for neuroscience. How such encoding differs across cultures and educational level is of further interest in education and neuropsychology. This rapidly expanding field of research is overdue for an interdisciplinary volume such as this, which deals with the neurological and psychological foundations of human numeric capacity. A uniquely integrative work, this volume provides a much needed compilation of primary source material to researchers from basic neuroscience, psychology, developmental science, neuroimaging, neuropsychology and theoretical biology. The first comprehensive and authoritative volume dealing with neurological and psychological foundations of mathematical cognition Uniquely integrative volume at the frontier of a rapidly expanding interdisciplinary field Features outstanding and truly international scholarship, with chapters written by leading experts in a variety of fields

Patterns of Speculation

Inter-correlation with a time lag between spatially separated wheat markets Notes: This figure illustrates one of the ... The SSA model permits numerous predictions about the space-time pattern of prices (spatial price differentials and ...

Patterns of Speculation

The main objective of this 2002 book is to show that behind the bewildering diversity of historical speculative episodes it is possible to find hidden regularities, thus preparing the way for a unified theory of market speculation. Speculative bubbles require the study of various episodes in order for a comparative perspective to be obtained and the analysis developed in this book follows a few simple but unconventional ideas. Investors are assumed to exhibit the same basic behavior during speculative episodes whether they trade stocks, real estate, or postage stamps. The author demonstrates how some of the basic concepts of dynamical system theory, such as the notions of impulse response, reaction times and frequency analysis, play an instrumental role in describing and predicting speculative behavior. This book will serve as a useful introduction for students of econophysics, and readers with a general interest in economics as seen from the perspective of physics.

Developing High Quality Data Models

In particular, I examine the space-time patterns that different kinds of spatio-temporal extents exhibit, and I look at the key relationship of one thing being a part of another that can exist between individuals.

Developing High Quality Data Models

Developing High Quality Data Models provides an introduction to the key principles of data modeling. It explains the purpose of data models in both developing an Enterprise Architecture and in supporting Information Quality; common problems in data model development; and how to develop high quality data models, in particular conceptual, integration, and enterprise data models. The book is organized into four parts. Part 1 provides an overview of data models and data modeling including the basics of data model notation; types and uses of data models; and the place of data models in enterprise architecture. Part 2 introduces some general principles for data models, including principles for developing ontologically based data models; and applications of the principles for attributes, relationship types, and entity types. Part 3 presents an ontological framework for developing consistent data models. Part 4 provides the full data model that has been in development throughout the book. The model was created using Jotne EPM Technologys EDMVisualExpress data modeling tool. This book was designed for all types of modelers: from those who understand data modeling basics but are just starting to learn about data modeling in practice, through to experienced data modelers seeking to expand their knowledge and skills and solve some of the more challenging problems of data modeling. Uses a number of common data model patterns to explain how to develop data models over a wide scope in a way that is consistent and of high quality Offers generic data model templates that are reusable in many applications and are fundamental for developing more specific templates Develops ideas for creating consistent approaches to high quality data models

Metapatterns Across Space Time and Mind

An earth scientist explores large-scale patterns that explain the functioning of the universe, combining a range of material from art, architecture, philosophy, mythology, biology, geophysics, and atmospheric and oceanographic sciences, and ...

Metapatterns Across Space  Time  and Mind

An earth scientist explores large-scale patterns that explain the functioning of the universe, combining a range of material from art, architecture, philosophy, mythology, biology, geophysics, and atmospheric and oceanographic sciences, and illustrating it with a series of original collages. UP.

Mathematical and Control Applications in Agriculture and Horticulture

So the first models may be discrete . Than in any moment of discrete time the elements form some space picture in geographical region with some distribution of ill , healthy and immune and so on animals . Let us call this space pattern ...

Mathematical and Control Applications in Agriculture and Horticulture

A wide ranging programme was planned, covering the principal areas where mathematical models or control engineering can have a major impact on agricultural and horticultural processes and their management. Emphasis was placed on applications of models and control in agriculture. Focal areas for the meeting included: models and control of post-harvest processing and grading, climate control in plant production and animal houses, mathematical models relating to the environmental impacts of agriculture, sensing and control methodologies appropriate to agricultural systems, information technology, impact of uncertainty and forecasting in models, demonstration of novel developments in software for agriculture and horticulture, and practical implementations of models and control. The meeting was structured to maintain maximum interaction between participants in the focal areas of the programme - and to permit presentations across a wide range, from control methodologies to practical implementation of models.

Textbook of Integrative Mental Health Care

physics , and that the same models can be used to explain premise on which the conceptual framework of integrative ... In this way , symptom patterns that are space - time , as described by Newtonian physics . experienced and ...

Textbook of Integrative Mental Health Care

Textbook of Integrative Mental Health Care presents a comprehensive framework of conceptual information and clinical guidelines for the integrative assessment and treatment of common mental illnesses. Extensive evidence tables and easy-to-follow algorithms guide the practitioner step-by-step from initial assessment to treatment planning.

Complex Artificial Environments

There are also different dynamics, from the routine where the focus is on showing how objects move in space, to longer-term migrations where the focus is in comparing map patterns at different points in time.

Complex Artificial Environments

Juval Portugali The notion of complex artificial environments (CAE) refers to theories of c- plexity and self-organization, as well as to artifacts in general, and to artificial - vironments, such as cities, in particular. The link between the two, however, is not trivial. For one thing, the theories of complexity and self-organization originated in the “hard” science and by reference to natural phenomena in physics and bi- ogy. The study of artifacts, per contra, has traditionally been the business of the “soft” disciplines in the humanities and social sciences. The notion of “complex artificial environments” thus implies the supposition that the theories of compl- ity and self-organization, together with the mathematical formalisms and meth- ologies developed for their study, apply beyond the domain of nature. Such a s- st position raises a whole set of questions relating to the nature of 21 century cities and urbanism, to philosophical issues regarding the natural versus the artificial, to the methodological legitimacy of interdisciplinary transfer of theories and me- odologies and to the implications that entail the use of sophisticated, state-of-t- art artifacts such as virtual reality (VR) cities and environments. The three-day workshop on the study of complex artificial environments that took place on the island of San Servolo, Venice, during April 1-3, 2004, was a gathering of scholars engaged in the study of the various aspects of CAE.

Innovative Behaviour in Space and Time

This book is complementary to a previously published volume on technological innovation, Technological Change, Economic Development and Space, edited by C.S. Bertuglia, M.M. Fischer and G. Preto, and also published by Springer-Verlag (1995) ...

Innovative Behaviour in Space and Time

In the past decade there has been growing recognition that economic development is not mainly exogenously determined but, to a large extent, is a transformation process induced and governed by economic actors who respond to competitive, institutional and political challenge. This 'challenge and response' model is increasingly accepted as a valid analytical framework in modem growth theory and also explains the popularity of endogenous growth approaches to technological innovation issues. However, a major and as yet largely under-researched topic is the question of the diffusion and adoption of new technological changes in the context of space-time dynamics. This diffusion and adoption pattern has obviously clear spatial and temporal variations connected with behavioural responses which may vary over time and different locations. This means that a closer analysis of spatio-temporal opportunities and impediments is necessary in order to fully map the complex interactions of technology and economy in space and time. This volume sets out to bring together a collection of original contributions commissioned by the editors to highlight the spatio-temporal patterns and backgrounds of the diffusion and adoption of new technologies. Some are in the nature of a survey, others.have a modelling background and again others are case studies. The contributions originate from different countries and different disciplines. This book is complementary to a previously published volume on technological innovation, Technological Change, Economic Development and Space, edited by C.S. Bertuglia, M.M. Fischer and G. Preto, and also published by Springer-Verlag (1995).

Annual Report

Preliminary results show that when time is added to the model , patterns of nest distribution and nest predation cannot be ... Additional work is required to determine the usefulness of this model for spatial or space - time data .

Annual Report