Ebook: Temporal Order: Proceedings of a Symposium on Oscillations in Heterogeneous Chemical and Biological Systems, University of Bremen, September 17–22, 1984

This volume contains the lectures and contributions presented at the International Symposium on Temporal Order held in Bremen, September 17-22, 1984. Temporal order, such as a more or less regularly repeated temporal sequence of events, can evol ve in open systems far removed from equi 1 i bri um. Progress duri ng the last decade in the analysis and the modelling of this complex phenomenon in both biological and chemical systems gave rise to the idea of a joint conference. The purpose of the symposium was to stimulate future work by enhancing the exchange of experimental and theoretical results between neighbouring disciplines. Theoretical work in general, and mathematical models in particular, provided the basis for a mutual discussion and, thus, helped to overcome difficulties in under­ standing the results of different experimental fields. Chemical systems, for examp­ le, are more rigorously controllable through their experimental conditions in com­ parison to biological systems, which maintain highly effective autonomous control against environmental influences. Therefore, different states such as bistability, oscillations and chaos can be defined and, hence, described better in chemical sy­ stems. Chemical systems may thus provide some insights into functional structures that also exist in more complex biological systems.

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Content:
Front Matter....Pages I-IX
Front Matter....Pages 1-1
Spontaneous Temporal and Spatial Phenomena in Physicochemical Systems....Pages 2-12
Some Factors Generating Temporally Ordered Behavior....Pages 13-23
Mechanisms and Chemically Consistent Models for Isothermal Oscillations in the CSTR....Pages 24-32
Analysis and Qualitative Modelling of Experimentally Observed Dynamic Features....Pages 33-46
A Physicist’s Description of Chemical Oscillations....Pages 47-56
Multiplicity-Induced Oscillations in Porous Catalysts....Pages 57-58
Temporal Oscillations Induced by Boundary Conditions in Systems with and Without Spatial Patterns....Pages 59-60
On the Classification of Local Disorder in Globally Regular Spatial Patterns....Pages 61-66
Some Proposals Concerning the Mathematical Modelling of Oscillating Heterogeneous Catalytic Reactions on Metal Surfaces....Pages 67-74
In-Situ IR Study During Oscillations of the Catalytic CO Oxidation....Pages 75-85
Spatial Effects and Oscillations in Heterogeneous Catalytic Reactions....Pages 86-95
Dynamics of the Heterogeneous Catalytic Oxidation of Carbon Monoxide on Zeolite Supported Palladium....Pages 96-100
Toroidal Oscillations During the Oxidation of Methanol on Zeolite Supported Palladium....Pages 101-102
Oscillatory Behavior of Cobalt Electrodes During Transition from the Active to the Passive State....Pages 103-104
Periodic and Aperiodic Regimes in Forced Chemical Oscillations....Pages 105-115
Periodic Perturbation of the BZ-Reaction in a CSTR: Chemical Resonance, Entrainment and Quasi-Periodic Behavior....Pages 116-121
Periodic Perturbation of Limit Cycles in an Isothermal CSTR....Pages 122-125
Oscillations in a CSTR Affected by the Pump Periodicity....Pages 126-127
Front Matter....Pages 129-129
Synchronization, Phase-Locking and Other Phenomena in Coupled Cells....Pages 130-143
The Influence of Fluctuations on Sustained Oscillations....Pages 144-152
Front Matter....Pages 129-129
Chemomechanical Interfacial Instabilities and Waves: Their Possible Role for the Cell Locomotion on Substrates....Pages 153-162
Contraction and Oscillations in a Simple Model for Cell Plasma Motion....Pages 163-174
Circle Maps and the Periodic Forcing of Limit Cycle Oscillators....Pages 175-178
Dynamic Coupling and Time Patterns in Biochemical Processes....Pages 179-190
Dimension and Liapunov Exponents of a Strange Attractor from Biochemical Data....Pages 191-193
Coupling of Glycolytic Oscillations and Convective Patterns....Pages 194-196
Computation of Bifurcation Diagrams for Selkov’s Model of Glycolytic Oscillations....Pages 197-200
Comparison of the Linear and Non-Linear Temperature Properties and Model Simulations of the In Vivo Glycolytic System....Pages 201-202
High Molecular Weight Protein is Presumably Essential for the Circadian Clock....Pages 203-210
Phase and Period Effects of Physical and Chemical Factors. Do Cells Communicate?....Pages 211-212
Singularity in a Unicell: Can Pulses of Protein Synthesis Inhibitors Stop the Biological Clock?....Pages 213-221
Perturbation by Single and Double Pulses as Analytical Tool for Analyzing....Pages 222-223
Cyclic Activity of Enzymes of Asparagine-Pyruvate Pathway and Cellular Synchronization. Significance of L-Asparaginase Oscillatory States....Pages 224-225
Control and Significance of the Circadian Growth of the Endocuticole in Cockroaches (Blaberus craniifer, Blattodea)....Pages 226-231
The Hypothalamic Control of Eating and Circadian Rhythms: Opponent Processes and Their Chemical Modulators....Pages 232-237
The Circadian Activity Rhythm of Mammals: A Comparison of Models and Experiments....Pages 238-245
Front Matter....Pages 246-247
Weak Coupling between the Two Pacemakers of the Bilateral Circadian Mechanism in Crickets....Pages 248-249
Effect of Reversed Photoperiod on Daily Rhythms of Synthesis and Accumulation of Neurosecretion in the Brain of the House Cricket....Pages 250-262
Circadian Rhythm of Locomotor Activity in Musca Continues after Severance of Optic Tracts....Pages 263-272
Interaction between Two Circadian Clocks in the Rabbit and Their Main Input....Pages 129-129
Dynamics of Feedback Systems with Time Lag....Pages 273-274
The Coordination of Cell Growth and Division: A Comparison of Models....Pages 275-276
Cellular Synergetics: Cell-Density Dependent Regulation of Population Dynamics of Mammalian Cells in Vitro....Pages 277-278
Idiotypic Network Among T Cells....Pages 279-280
The Transition Probability Model: Successes, Limitations and Deficiencies....Pages 281-290
A Deterministic Cell Cycle Model with Transition Probability-Like Behaviour....Pages 291-295
The Onset of Division in a Protocell Model....Pages 296-301
A Temperature Compensated Epigenetic Oscillator with an Hourly Period Provides Time-Keeping for the Cell Cycle and Possibly also for Circadian-Controlled Phenomena....Pages 302-303
Back Matter....Pages 304-314
....Pages 315-320