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IV. Ecosmomics: Independent, UniVersal, Complex Network Systems and a Genetic Code-Script Source5. Common Code: A Further Report of Reliable, Invariant Occasions West, Geoffrey and James Brown. Life’s Universal Scaling Laws. Physics Today. September, 2004. A popular survey of the theory that common properties of biological networks can explain the structural organization and metabolic dynamics of living systems. Among the many fundamental variables that obey such scaling laws….are metabolic rate, life span, growth rate, heart rate, lengths of aortas and genomes, tree height, mass of cerebral grey matter, density of mitochondria, and concentration of RNA. (36) The starting point was to recognize that highly complex, self-sustaining, reproducing, living structures require close integration of enormous numbers of localized microscopic units that need to be serviced in an approximately “democratic” and efficient fashion. (38) Thus, growth and life-history events are, in general, universal phenomena governed primarily be basic cellular properties and quarter-power scaling. (40) West, Geoffrey and James Brown. The Origin of Allometric Scaling Laws in Biology from Genomes to Ecosystems. Journal of Experimental Biology. 208/9, 2005. Physicist West and ecologist Brown, with other colleagues over the past decade, have achieved a significant articulation via complexity science of a quantitative theory of biological organization. This latest report discusses hierarchical branching networks which exhibit a nested self-similarity distinguished by power-law behavior across the entire realm of living nature. The implication of such findings, along with much other work, is the (re)discovery that our reality is distinguished by a repetition of the same pattern and process everywhere. For example, metabolic rate scales as the ¾ power of mass over 27 orders of magnitude, from molecular and intracellular levels up to the largest organisms. Similarly, time-scales (such as lifespans and growth rates) and sizes (such as bacterial genome lengths, tree heights and mitochondrial densities) scale with exponents that are typically simple powers of ¼. The universality and simplicity of these relationships suggest that fundamental universal principles underlie much of the coarse-grained generic structure and organization of living systems. (1575) Wheeler, Jennifer and Kit Yu Jaren Chan.. The Whole is Greater Than the Sum of Its Parts: Large-scale Phenomena Arising from Small-scale Biophysical Processes.. Integrative and Comparative Biology. 63/6, December, 2023. Memorial University, Newfoundland and Swarthmore College biologists introduce the vast conten, from this six day meeting, as the abstract cites,. Its address is sicb.org/wp-content/uploads/2023/04/2023-SICB-Program-R5.pdf Select papers have yet to be published, keep checking this subject journal. As appropriate for 2023, a new pervasive sense of basic commonalities across every size and scale of lively systems is becoming increasingly apparent. The symposium “Large-scale biological phenomena arising from small-scale biophysical processes” at the SICB (Society for Integrative and Comparative Biology) 2023 Annual Meeting focused on the cross-disciplinary exploration of emergent phenomena in biology. Interactions between cells or organisms at small scales within a system can govern patterns occurring at larger scales in space, time, or biological complexity. This theme recurs in many sub-disciplines of biology, including cell and developmental biology, evolution, and ecology. This special issue showcases a wide range of cross-disciplinary collaborations among biologists, physicists, and engineers. We hope to demonstrate that cross-disciplinary research linking small-scale biophysics to larger-scale emergent phenomena can help us understand problems ranging from single-cell behaviors to tissue formation and function, evolution of form, and the dynamics of communities. (Abstract) Whitfield, John. Across the Curious Parallel of Language and Species Evolution. PLoS Biology. 6/7, 2008. The British science writer reports in this online journal on the dawning realization that the molecular DNA code is strongly isomorphic and isodynamic with linguistic structures. One might add that an implication of this has not yet registered that human knowledge is genetic in kind, and that both codes must spring from the same innate source. By its employ, much as if people are as “genes,” we might intentionally continue creation. Languages are extraordinarily like genomes…there could be very general laws of lexical evolution to rival those of genetic evolution. (1370) Wurthner, Laeschkir, et al. Bridging Scales in a Multiscale Pattern-Forming System. arXiv:2111.12043. Ludwig-Maximilians-Universitat, Munchen and Delft University of Technology theorists including Erwin Frey advance studies of self-organizing structural qualities of from proteins to organisms. Their purpose is thus to reveal and express the occurrence of general, ultimately physical, principles and forces which serve as an independent source-code for life’s evolutionary and metabolic occasion. Self-organized pattern formation is vital for many biological processes. Mathematical modeling using reaction-diffusion models has advanced our understanding of how biological systems develop spatial structures. However, biological processes inherently involve multiple spatial and temporal scales and transition from one pattern to another over time. Here, we describe mass-conserving reaction-diffusion systems that can reconstruct information about patterns across the large-scale dynamics. We illustrate by the Min protein system which produces multiscale patterns in a spatially heterogeneous geometry. Since conservation laws are inherent in many different physical environs, our general approach can uncover underlying principles in pattern-forming systems. (Abstract excerpt) Yang, Ang and Yin Shan, eds. Intelligent Complex Adaptive Systems. Hershey, PA: IGI Publishing, 2008. This technical volume illustrates a revolution in conceptual modeling as applied across a wide range from computational processes to international conflicts. All such phenomena can now be expressed as universally manifest multi-agent, interactive, modular, information-driven dynamic networks. Yang, Haiqian, et al. Configural Fingerprints of Multicellular Living Systems. Proceedings of the National Academy of Sciences. 118/44, 2021. Seven bioengineers from MIT, University of Ottawa, and Northeastern University quantify deeper rootings of life’s evolutionary sequential course into invariant physical phenomena such as dynamic state transitions. As substantial matter is found to possess an active spontaneity, it becomes a fertile soil for regnant flora and fauna. Cells cooperate as groups to achieve structure and function at the tissue level, during which specific material characteristics emerge. Analogous to phase transitions in classical physics, transformations in multicellular assemblies are essential for a variety of vital processes including morphogenesis, wound healing, and cancer. In this work, we develop configurational fingerprints of particulate and multicellular assemblies and extract volumetric and shear order parameters to quantify the system disorder. These two parameters form a complete and unique pair of signatures for the structural disorder of a multicellular system. (Abstract excerpt) Yeung, Chi Ho, et al. From the Physics of Interacting Polymers to Optimizing Routes on the London Underground. Proceedings of the National Academy of Sciences. 110/13717, 2013. As the Abstract and Synopsis detail, Aston University, Birmingham, UK, and Hong Kong University of Science and Technology, systems physicists quantify nature’s universal preference for metabolic movement from biochemicals to biocities, so as carry it forth for a better organic design of our human scale dynamic systems. Optimizing paths on networks is crucial for many applications, ranging from subway traffic to Internet communication. Because global path optimization that takes account of all path choices simultaneously is computationally hard, most existing routing algorithms optimize paths individually, thus providing suboptimal solutions. We use the physics of interacting polymers and disordered systems to analyze macroscopic properties of generic path optimization problems and derive a simple, principled, generic, and distributed routing algorithm capable of considering all individual path choices simultaneously. We demonstrate the efficacy of the algorithm by applying it to: (i) random graphs resembling Internet overlay networks, (ii) travel on the London Underground network based on Oyster card data, and (iii) the global airport network. (Abstract) Yu, Haiyuan and Mark Gerstein. Genomic Analysis of the Hierarchical Structure of Regulatory Networks. Proceedings of the National Academy of Sciences. 103/14724, 2006. Genomic systems employ a consistent network motif to achieve viable translation, which is found to be the same organization as present in human societies. Another contribution to the discovery of a natural genesis that recycles a common pattern and process from atom to cosmos. A fundamental question in biology is how the cell uses transcription factors (TFs) to coordinate the expression of thousands of genes in response to various stimuli. The relationship between TFs and their target genes can be modeled in terms of directed regulatory networks. These relationships, in turn, can be readily compared with commonplace “chain-of-command” structures in social networks, which have characteristic layouts. (14724) In general, our results show that there is a pyramid-shaped hierarchical structure in regulatory networks, which is well organized in a clearly nonrandom manner. The decision making scheme in this hierarchy is a cogitation-like multistep process. (14730) Zhang, Mengsen, et al. Connecting Empirical Phenomena and Theoretical Models of Biological Coordination across Scales. Journal of the Royal Society Interface. Online August, 2019. By way of sophisticated procedures, Center for Complex Systems and Brain Sciences, Florida Atlantic University researchers MZ, Chris Beetle, Scott Kelso and Emmanuelle Tognoli (search SK & ET) uncover intrinsic mathematic reciprocities which seem to imbue and guide small group social interactions. These patterns are then seen to suffuse organic and cerebral behaviors so at to reveal a broader scale-invariance. See also Critical Diversity: Divided or United States of Social Coordination by this group in PLoS One (April 4, 2018) which alludes to a chimeric dynamics. Coordination in living systems—from cells to people—must be understood at multiple levels of description. Analyses and modelling of patterns of biological coordination often focus either on large-scale systems with many components, or on detailed dynamics in small-scale systems with few components. To bridge this gap, we have conducted a mid-scale human social experiment designed to reveal coordination at multiple levels (ensemble, subgroups and dyads) simultaneously. The present paper shows that a single system of equations captures key observations at all relevant levels. It also connects empirically validated models of both large- and small-scale biological coordination. Only by incorporating both of these features simultaneously can we reproduce the essential coordination behaviour observed in our experiment. (Abstract excerpt)
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