# Santa Fe Institute

# Working Papers

**Contact information of Santa Fe Institute:**

Postal: 1399 Hyde Park Road, Santa Fe, New Mexico 87501

Web page: http://www.santafe.edu/sfi/publications/working-papers.html

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(Thomas Krichel)** **Series handle:** repec:wop:safiwp
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### 1997

**97-09-078 Using Lazy Evaluation to Simulate Realistic-Size Repertoires in Models of the Immune System***by*Derek J. Smith & Stephanie Forrest & David H. Ackley & Alan S. Perelson**97-08-073 Redundant Gene Functions and Natural Selection***by*Andreas Wagner**97-07-067 Sequence Redundancy in Biopolymers: A Study on RNA and Protein Structures***by*Peter Schuster & Peter F. Stadler**97-06-051 Monte Carlo Simulation of Ice Models***by*G. T. Barkema & M. E. J. Newman**97-05-038 Phase Transitions in Logic Networks***by*B. K. Sawhill & S. A. Kauffman**97-04-032 Self-Organization in Social Insects***by*Eric Bonabeau & Guy Theraulza & Jean-Louis Deneubourg & Serge Aron & Scott Camazine**97-03-018 Scientific Understanding of Dynamic Phenomena: Analytic/Recursive/Holistic Relationships***by*E. Atlee Jackson**97-02-014 On Information and Sufficiency***by*Huaiyu Zhu**97-01-007 Circuits and Expressions with Non-Associative Gates***by*Joshua Berman & Arthur Drisko & Francois Lemieux & Cristopher Moore & Denis Therien

### 1996

**96-12-095 Coherent Noise, Scale Invariance, and Intermittency in Large Systems***by*Kim Sneppen & M. E. J. Newman**96-12-094 Community Assembly in a Model Ecosystem***by*Peter T. Hraber & Bruce T. Milne**96-12-093 Asset Pricing Under Endogenous Expectation in an Artificial Stock Market***by*W. Brian Arthur & John H. Holland & Blake LeBaron & Richard Palmer & Paul Taylor**96-12-092 Structure and Strategy in Collective Action: Communication and Coordination in Social Networks***by*Michael Suk-Young Chwe**96-12-091 Evidence for Adaptive Evolutionary Convergence in the Base Composition of Single-Stranded RNA***by*Erik Schultes & Peter T. Hraber & Thomas H. LaBean**96-12-090 Global Similarities in Nucleotide Base Composition Among Disparate Functional Classes of Single-Stranded RNA***by*Erik Schultes & Peter T. Hraber & Thomas H. LaBean**96-12-088 Somatic Mutation Leads to Efficient Affinity Maturation When Centrocytes Recycle Back to Centroblasts***by*Mihaela Oprea & Alan S. Perelson**96-12-087 Spectral Representation of Neutral Landscapes***by*Timothy H. Keitt**96-12-086 The Repton Model of Gel Electrophoresis***by*G. . Barkema & M. E. J. Newman**96-11-083 Target Cell Limited and Immune Control Models of HIV Infection: A Comparison***by*Rob J. De Boer & Alan S. Perelson**96-10-080 Large Scale Traffic Simulations***by*Kai Nagel & Marcus Rickert & Christopher L. Barrett**96-10-078 Treatment under Ambiguity***by*Charles F.Manski**96-09-076 Oscillatory Behavior of the Rate of Escape through an Unstable Limit Cycle***by*Robert S. Maier & Daniel L. Stein**96-09-075 Price Variations in a Stock Market with Many Agents***by*P. Bak & M. Paczuski & M. Shubik**96-09-073 Embedded-Particle Computation in Evolved Cellular Automata***by*Wim Hordijk & James P. Crutchfield & Melanie Mitchell**96-08-072 Investigations***by*Stuart A. Kauffman**96-08-071 Natural Rationality***by*V. M. Darley & S. A. Kauffman**96-08-070 Collective-Induced Computation***by*Jordi Delgado & Ricard V. Sole**96-08-068 Entrepreneurs: Self-Confident Agents Busting Self-Confirming Equilibria***by*Michael D. Ryall**96-08-067 The Markov Process Behind Limited Information Trading***by*Elizabeth Newlon**96-08-066 Managing Change and the Success of Niche Products***by*Kieron J. Meagher**96-08-065 Local Hillclimbing on an Economic Landscape***by*David Kane**96-08-064 The Localisation of Interaction and Learning in the Repeated Prisoner's Dilemma***by*Robert Hoffmann & Nigel Waring**96-08-063 The Mixed Strategy Equilibria and Adaptive Dynamics in the Bar Problem***by*John Cheng**96-08-062 Equilibrium Selection in the Stochastic Iterated Prisoner's Dilemma***by*Susan M. Bennet**96-08-061 Limits to Science or Limits to Epistemology?***by*Steven N. Durlauf**96-08-060 Majority-Vote Cellular Automata, Ising Dynamics, and P-Completeness***by*Cristopher Moore**96-08-059 Lattice Molecular Automaton (LMA): A Physico-Chemical Simulation System for Constructive Molecular Dynamics***by*Bernd Mayer & Steen Rasmussen**96-08-058 Simulation and Dynamics of Entropy Driven, Molecular Self-Assembly Processes***by*Bernd Mayer & Gottfried Kohler & Steen Rasmussen**96-08-057 Generation of Higher Order Emergent Structures***by*Nils A. Baas & Michael W. Olesen & Steen Rasmussen**96-08-056 Network Traffic as a Self-Organized Critical Phenomena***by*Kai Nagel & Steen Rasmussen & Christopher L. Barrett**96-08-055 A Note on Simulation and Dynamical Hierarchies***by*Steen Rasmussen & Nils A. Baas & Christopher L. Barrett & Michael W. Olesen**96-08-054 Finite Populations Induce Metastability in Evolutionary Search***by*Erik van Nimwegen & James P. Crutchfield & Melanie Mitchell**96-08-053 The Emergence of Simple Ecologies of Skill: A Hypercycle Approach to Economic Organization***by*John F. Padgett**96-08-052 Stochastic Resonance in Models of Neuronal Ensembles Revisited***by*Dante R. Chialvo & Andre Longtin & Johannes Muller-Gerking**96-07-050 Statistical Complexity of Simple 1D Spin Systems***by*James P. Crutchfield & David P. Feldman**96-07-049 Extinction: Bad Genes or Weak Chaos?***by*Ricard V. Sole & Jordi Bascompte & Susanna C. Manrubia**96-07-048 Computational Political Economy***by*Ken Kollman & John H. Miller & Scott E. Page**96-07-047 Landscapes and Molecular Evolution***by*Peter Schuster**96-07-046 The Algebraic Theory of Recombination Spaces***by*Peter F. Stadler & Gunjter P. Wagner**96-07-045 Quantitative Image Analysis of HIV-1 Infection in Lymphoid Tissue***by*Ashley T. Haase & Keith Henry & Mary Zupancic & Gerlad Sedgewick & Russell A. Faust & Holly Melroe & Winston Cavert & Kristin Gebhard & Katherine Staskus & Zhi-Qiang Zhang & Peter J. Dailey & Henry H. Balfour Jr. & Alejo Erice & Alan S. Perelson**96-07-044 Assessing the Reliability of RNA folding Using Statistical Mechanics***by*Martijn Huynen & Robin Gutell & Danielle Konings**96-06-043 Evolutionary Dynamics in Game-Theoretic Models***by*Kristian Lindgren**96-06-042 The Swarm Simulation System: A Toolkit for Building Multi-Agent Simulations***by*Nelson Minar & Rogert Burkhart & Chris Langton & Manor Askenazi**96-06-041 From Infoware to Infowar***by*Joseph F. Traub**96-06-040 New Results on Deterministic Pricing of Financial Derivatives***by*A. Papageorgiou & J. F. Traub**96-06-038 An Efficient Method to Estimate Bagging's Generalization Error***by*David H. Wolpert & William G. Macready**96-05-034 Isotropy and Metastable States: The Landscape of the XY Hamiltonian Revisited***by*Ricardo Garcia-Pelayo & Peter F. Stadler**96-05-032 Deleteriuous Mutations, Variable Epistatic Interactions, and the Evolution of Recombination***by*Sarah Perin Otto & Marcus W. Feldman**96-05-031 Population Genetic Perspectives on the Evolution of Recombination***by*Marcus W. Feldman & Sarah P. Otto & Freddy B. Christiansen**96-05-030 Individual Versus Social Learning: Evolutionary Analysis in a Fluctuating Environment***by*Marcus W. Feldman & Kenichi Aoki & Jochen Kumm**96-05-029 Neural Net Representations of Empirical Protein Potentials***by*Tal Grossman & Robert Farber & Alan Lapedes**96-05-027 Mapping in Random Structures***by*Christian Reidys**96-05-025 A Brief History of Cultural Evolution: Stages, Agents, and Tinkering***by*Jonathan Haas**96-05-023 Dynamical Recognizers: Real-Time Language Recognition by Analog Computers***by*Cristopher Moore**96-04-022 Population Games***by*Larry E. Blume**96-04-021 How the Economy Organizes Itself in Space: A Survey of the New Economic Geography***by*Paul Krugman**96-04-020 Evolution of Trading Structures***by*Yannis M. Ioannides**96-04-019 Identification of Anonymous Endogenous Interactions***by*Charles F. Manski**96-04-018 Asset Price Behavior in Complex Environments***by*Willaiam A. Brock**96-04-017 Passively Learning Finite Automata***by*Kevin P. Murphy**96-04-016 Algorithmic Independence Properties of RNA Secondary Structure Predictions***by*Manfred Tacker & Peter F. Stadler & Erich G. Bornberg-Bauer & Ivo L. Hofacker & Peter Schuster**96-04-014 A Theory of Biochemical Organization, Metabolic Pathways, and Evolution***by*Harold J. Morowitz**96-03-013 Time and Money***by*Martin Shubik**96-03-012 Physics: The Opening to Complexity***by*Philip W. Anderson**96-03-011 Active Nonlinear Tests (ANTs) of Complex Simulation Models***by*John H. Miller**96-03-010 On Reality and Models***by*Joseph F. Traub**96-03-009 On 2-Armed Gaussian Bandits and Optimization***by*William G. Macready & David H. Wolpert**96-03-008 An Incompleteness Theorem for Calculating the Future***by*David H. Wolpert**96-02-006 Question Marks About the Period of Punctuation***by*Aviv Bergman & Marcus W. Feldman**96-02-004 HIV-1 Dynamics In Vivo: Virion Clearance Rate, Infected Cell Lifespan, and Viral Generation Time***by*Alan S. Perelson & Avidan U. Neumann & Martin Markowitz & John M. Leonard & David D. Ho**96-02-003 NP Completeness of Kauffman's N-k Model, A Tuneable Rugged Fitness Landscape***by*Edward D. Weinberger**96-12-085 Neutral Networks in Protein Space***by*Aderonke Babajide & Ivo L. Hofacker & Manfred J. Sippl & Peter F. Stadler**96-11-084 Expectational Diversity in Monetary Economies***by*William A. Brock & Patrick de Fontnouvelle**96-10-079 The Unknown and the Unknowable***by*Joseph F. Traub**96-09-077 The Structurte of the Synchronizing-CA Landscape***by*Wim Hordijk**96-08-069 Statistical Mechanics Approaches to Socioeconomic Behavior***by*Steven N. Durlauf**96-07-051 Turbulent Landscapes: A Dialogue***by*James P. Crutchfield & Ned Kahn**96-06-037 Closed-form Analytic Maps in One and Two Dimensions Can Simulate Turing Machines***by*Pascal Koiran & Cristopher Moore**96-05-024 Autocatalytic Networks with Intermediates I: Irreversible Reactions***by*Robert Hecht & Robert Happel & Peter Schuster & Peter F. Stadler**96-04-015 Particle Hopping Models and Traffic Flow Theory***by*Kai Nagel**96-03-007 Creating Alternative Cultural Histories in the Prehistoric Southwest: Agent-Based Modeling in Archaeology***by*George J. Gumerman & Timothy A. Kohler**96-02-005 Local Minima in the Graph Bipartitioning Problem***by*Barbel Krakhofer & Peter F. Stadler**96-01-002 Metazoan Complexity and Evolution: Is There a Trend?***by*Daniel W. McShea

### 1995

**95-12-106 Foresight, Complexity, and Strategy***by*David Lane & Robert Maxfield**95-11-102 Market Organization***by*Gerard Weisbuch & Alan Kirman & Dorothea Herreiner**95-11-082 Evolution on Random Structures***by*Christian M. Reidys & Simon M. Fraser**95-10-100 Exploring Phenotype Space Through Neutral Evolution***by*Martijn Huyen**95-10-099 Analysis of RNA Sequence Structure Maps by Exhaustive Enumeration***by*Walter Gruner & Robert Giegerich & Dirk Strothmann & Christian Reidys & Jacqueline Weber & Ivo L. Hofacker & Peter F. Stadler & Peter Schuster**95-10-098 Bio-Molecular Shapes and Algebraic Structures***by*Christian Reidys & Peter F. Stadler**95-10-097 Eye-Brain Maps***by*Jack D. Cowan & A. Edward Friedman**95-10-096 Fault and Failure Tolerance***by*Jack D. Cowan**95-10-095 Computational Mechanics of Cellular Automata: An Example***by*James E. Hanson & James P. Crutchfield**95-10-094 Evolutionary Dynamics and Optimization***by*Christian V. Forst & Christian Reidys & Jacqueline Weber**95-10-093 Chaotic Interactions of Self-Replicating RNA***by*Chrisitan V. Forst**95-10-092 Determining Whether Two Data Sets are From the Same Distribution***by*David H. Wolpert**95-10-091 The Bootstrap is Inconsistent with Probability Theory***by*David H. Wolpert**95-10-090 Hamming-Chromatography***by*Andreas Schwienhorst & Andreas Schober & Rolf Guenther & Peter F. Stadler**95-10-088 The Introduced Hawaiian Avifauna Reconsidered: Evidence for Self-Organized Criticality?***by*Timothy H. Keitt & Pablo A. Marquet**95-10-087 Managing Fragmented Landscapes: A Macroscopic Approach***by*Timothy H. Keitt & Dean L. Urban & Bruce T. Milne**95-10-086 On the Speed of Quantum Computers with Finite Size Clocks***by*Tino Gramss**95-10-085 Genetic Function Analyses***by*B. Kean Sawhill**95-10-084 Discrete Choice with Social Interactions I: Theory***by*William A. Brock & Steven N. Durlauf**95-10-083 Approximate Scaling Properties of RNA Free Energy Landscapes***by*Subbiah Baskaran & Peter F. Stadler & Peter Schuster**95-09-082 Solving the Schrodinger Equation for the Feynman Quantum Computer***by*Tino Gramss**95-09-081 Non-Abelian Cellular Automata***by*Cristopher Moore**95-09-080 Algebraic Properties of the Block Transformation on Cellular Automata***by*Cristopher Moore & Arthur A. Drisko**95-09-078 Quasi-Linear Cellular Automata***by*Cristopher Moore**95-09-076 Local Minima of p-Spin Models***by*Peter F. Stadler & Barbel Krakhofer**95-09-075 Model Misspecification Tests, Model Building, and Predictability in Complex Systems***by*Radu Manuca & Robert Savit**95-08-073 Pattern Formation and Functionality in Swarm Models***by*Erik M. Rauch & Mark M. Millonas & Dante R. Chialvo**95-07-072 How Useful is the "Standard Model" of the Electronic Theory of Metals?***by*Philip W. Anderson**95-07-071 New Physics of Metals: Fermi Surfaces Without Fermi Liquids***by*Philip W. Anderson**95-07-070 Segregation Distortion and Heteroclinic Cycles***by*Barbel Maria Regina Stadler**95-07-069 Random Field Models for Fitness Landscapes***by*Peter F. Stadler & Robert Happel**95-07-068 Canonical Approximation of Fitness Landscapes***by*Robert Happel & Peter F. Stadler**95-07-067 Landscapes and Their Correlation Functions***by*Peter F. Stadler**95-07-065 Aligning Simulation Models: A Case Study and Results***by*Robert Axtell & Robert Axelrod & Joshua M. Epstein & Michael D. Cohen**95-07-064 Temporally Asymmetric Fluctuations are Sufficient for the Biological Energy Transduction***by*Dante R. Chialvo & Mark M. Millonas**95-07-063 Autocatalytic Networks with Translation***by*Robert Happel & Robert Hecht & Peter F. Stadler**95-07-062 Autocatalytic Replication in a CSTR and Constant Organization***by*Robert Happel & Peter F. Stadler**95-07-061 Neighborhood Feedbacks, Endogenous Stratification, and Income Inequality***by*Steven N. Durlauf**95-07-060 Estimating Predictability: Redundancy and Surrogate Data Method***by*Milan Palus & L. Pecen & D. Pivka**95-07-059 Detecting Nonlinearity in Multivariate Time Series***by*Milan Palus**95-07-058 Generic Properties of Combinatory Maps: Neutral Networks of RNA Secondary Structures***by*Christian Reidys & Peter F. Stadler & Peter Schuster**95-07-057 Base Pairing Probabilities in a Complete HIV-1 RNA***by*Martijn A. Huynen & Alan S. Perelson & Wayne A. Vieira & Peter F. Stadler**95-06-056 Immunology for Physics***by*Alan S. Perelson & Gerard Weisbuch**95-06-055 Binding of Multivalent Ligands to Cells: Effects of Cell and Receptor Density***by*Bernhard Sulzer & Alan S. Perelson**95-06-054 Criticality and Parallelism in Combinatorial Optimization***by*William G. Macready & Athanassios G. Siapas & Stuart A. Kauffman**95-06-052 Breeding Competitive Strategies***by*David F. Midgley & Robert E. Marks & Lee G. Cooper**95-05-051 Clustered Volatility in Multiagent Dynamics***by*Michael Youssefmir & Bernardo A. Huberman**95-05-050 Control of Voltage-Dependent Biomolecules Via Nonequilibrium Kinetic Focusing***by*Mark M. Millonas & Dante R. Chialvo**95-05-049 A Measure of Landscapes***by*Wim Hordijk**95-05-048 Evolutionary Algorithms, Fitness Landscapes and Search***by*Terry Jones**95-05-046 What Makes an Optimization Problem Hard?***by*William G. Macready & David H. Wolpert**95-04-044 When Optimization Isn't Optimal: Aggregation and Information Contagion***by*David Lane & Roberta Vescovini**95-04-043 Hierarchical Crossover and Probability Landscapes of Genetic Operators***by*Stefan Bornholdt & Heinz Georg Schuster**95-04-042 Search Strategies for Applied Molecular Evolution***by*Stuart A. Kauffman & William G. Macready**95-04-041 Connectivity and Financial Network Shutdown***by*Laurence K. Eisenberg**95-04-040 Elements of a Theory of Simulation***by*Steen Rasmussen & Christopher L. Barrett**95-04-039 Adaptive Walks with Noisy Fitness Measurements***by*Bennett Levitan & Stuart Kauffman**95-03-036 Chaos in Core Oscillations of Globular Clusters***by*Joseph L. Breeden & Haldan N. Cohn**95-03-035 The Emergence of Memory: Categorisation Far from Equilibrium***by*Andrew Wuensche**95-03-034 Faster Valuation of Financial Derivatives***by*Spassimir H. Paskov & Joseph F. Traub**95-03-033 How Swarms Build Cognitive Maps***by*Dante R. Chialvo & Mark M. Millonas**95-03-031 Population Structure, Fitness Surfaces, and Linkage in the Shifting Balance Process***by*Aviv Bergman & David B. Goldstein & Kent E. Holsinger & Marcus W. Feldman**95-03-029 Rational Routes to Randomness***by*William A. Brock & Cars H. Hommes**95-03-028 The Convergence and Stability of Cultures: Local Convergence and Global Polarization***by*Robert Axelrod**95-02-027 Optimizing Stochastic and Multiple Fitness Functions***by*Joseph L. Breeden**95-02-026 What Bayes Has to Say About the Evidence Procedure***by*David H. Wolpert & Charles E.M. Strauss**95-02-025 One Operator, One Landscape***by*Terry Jones**95-02-024 Crossover, Macromutation, and Population-Based Search***by*Terry Jones**95-02-023 Off-Training-Set Error for the Gibbs and the Bayes Optimal Generalizers***by*Tal Grossman & Emanuel Knill & David Wolpert**95-02-022 Fitness Distance Correlation as a Measure of Problem Difficulty for Genetic Algorithms***by*Terry Jones & Stephanie Forrest**95-02-021 Genetic Algorithms and Heuristic Search***by*Terry Jones & Stephanie Forrest**95-02-020 Use of Adaptive Networks to Define Highly Predictable Protein Secondary-Structure Classes***by*Alan S. Lapedes & Evan W. Steeg & Robert M. Farber**95-02-019 Use of Bad Training Data for Better Predictions***by*Tal Grossman & Alan Lapedes**95-02-018 Noise Sensitivity Signatures for Model Selection***by*Tal Grossman & Alan Lapedes**95-02-017 Neural Networks for Determining Protein Specificity and Multiple Alignment of Binding Sites***by*John M. Heumann & Alan S. Lapedes & Gary D. Stormo**95-02-016 Covariation of Mutations in the V3 Loop of HIV-1: An Information Theoretic Analysis***by*B. Korber & R. Farber & D. Wolpert & A. Lapedes**95-02-015 A Complex Systems Approach to Computational Molecular Biology***by*A. Lapedes**95-02-013 Determination of Eukaryotic Protein Coding Regions Using Neural Networks and Information Theory***by*Robert Farber & Alan Lapedes & Karl Sirotkin**95-02-012 A Parallel Non-Neural Trigger Tracker for the SSC***by*R.M. Farber & W. Kinnison & A.S. Lapedes**95-02-011 Application of Neural Networks and Other Machine Learning Algorithms to DNA Sequence Analysis***by*A. Lapedes & C. Barnes & C. Burks & R. Farber & K. Sirotkin**95-02-010 No Free Lunch Theorems for Search***by*David H. Wolpert & William G. Macready**95-02-007 Hybridized Crossover-Based Search Techniques for Program Discovery***by*Una-May O'Reilly & Franz Oppacher**95-01-006 Evolutionary Dynamics of RNA and the Neutral Theory***by*Martijn Huynen & Peter Stadler & Walter Fontana**95-01-004 Choice and Action***by*David Lane & Franco Malerba & Robert Maxfield & Luigi Orsenigo**95-01-002 Rapid Turnover of Plasma Virions and CD4 Lymphocytes in HIV-1 Infection***by*David D. Ho & Avidan U. Neumann & Alan S. Perelson & Wen Chen & John M. Leonard & Martin Markowitz**95-01-001 A First Look at the Second Metamorphosis of Science***by*E. Atlee Jackson**95-12-105 Parallel Cone Bipolar to On-Beta Ganglion Cell Pathways in the Cat Retina: Spatial Responses, Spatial Aliasing, and Spatial Variance***by*Bennett Levitan & Gershon Buchsbaum**95-11-101 Routines and Other Recurring Action Patterns of Organizations: Contemporary Research Issues***by*Michael D. Cohen & Roger Burkhart & Giovanni Dosi & Massimo Egidi & Luigi Marengo & Massimo Warglien & Sidney Winter & with comments by Benjamin Coriat**95-10-089 RNA Folding on Parallel Computers: The Minimum Free Energy Structures of Complete HIV Genomes***by*Ivo L. Hofacker & Martijn A. Huynen & Peter F. Stadler & Paul E. Stolorz**95-09-079 Recursion Theory on the Reals and Continuous-Time Computation***by*Cristopher Moore**95-08-074 On Bias Plus Variance***by*David H. Wolpert**95-07-066 Social Complex Adaptive Systems: Some Hawaiian Examples***by*Robert J. Hommon**95-06-053 Evolving Information Processing Organizations***by*John H. Miller**95-05-047 Broken Ergodicity and the Geometry of Rugged Landscapes***by*D. L. Stein & C. M. Newman**95-04-045 A Comparison of Political Institutions in a Tieabout Model***by*Ken Kollman & John H.Miller & Scott E. Page**95-03-037 A Strategic Market Game With Secured Lending***by*Ioannis Karatzas & Martin Shubik & William D. Sudderth**95-02-014 Predicting Protein Secondary Structure Using Neural Net and Statistical Methods***by*Paul Stolorz & Alan Lapedes & Yuan Xia**95-01-005 Evolving Globally Synchronized Cellular Automata***by*Rajarshi Das & James P. Crutchfield & Melanie Mitchell & James E. Hanson

### 1994

**94-12-065 The Swarm Simulation System and Individual-Based Modeling***by*David Hiebeler**94-11-061 Towards a General Function Describing T Cell Proliferation***by*Rob J. DeBoer & Alan S. Perelson**94-11-060 Protein Evolution on Partially Correlated Landscapes***by*Alan S. Perelson & Catherine A. Macken**94-11-059 A Description of Holland's Royal Road Function***by*Terry Jones**94-10-055 Simple Models of Renewable Resource Depletion***by*G\' erard Weisbuch & E. Ann Stanley & Guillemette Duchateau-Nguyen & Martine Antona & H\' el\` ene Cl\'ement-Pitiot**94-10-054 Nonlinearity in Normal Human EEG: Cycles and Randomness, Not Chaos***by*Milan Palu\v s**94-09-051 Canonical Approximation of Landscapes***by*Peter F. Stadler & Robert Happel**94-09-050 Evolution, Entropy, and Parallel Computation***by*Kurt Thearling**94-09-049 On the Evolution of Recombination in Haploids and Diploids***by*Aviv Bergman & Sarah P. Otto & Marcus W. Feldman

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