References and Notes Supporting Online Material on Universality in Human Correspondence Activity-猫眼课题宝

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D. A. J. L. Damassa;H. E. Brooks;Adler;V Larionov;N. Kouprina;G. Solomon;J. C. Barrett;M. A. R

This technology could accelerate the construction of live vaccine strains. Many medically or industrially important microbes are difficult to manipulate genetically. This has severely limited our understanding of patho-genesis and our ability to exploit the knowledge of microbial biology on a practical level. We hope that the cycle presented here can be applied to other species, to help solve these problems. report the very recent renaming of Mycoplasma mycoides subspecies mycoides Large Colony to Mycoplasma mycoides subspecies capri. The identification and modeling of patterns of human activity have important ramifications for applications ranging from predicting disease spread to optimizing resource allocation. Because of its relevance and availability, written correspondence provides a powerful proxy for studying human activity. One school of thought is that human correspondence is driven by responses to received correspondence, a view that requires a distinct response mechanism to explain e-mail and letter correspondence observations. We demonstrate that, like e-mail correspondence, the letter correspondence patterns of 16 writers, performers, politicians, and scientists are well described by the circadian cycle, task repetition, and changing communication needs. We confirm the universality of these mechanisms by rescaling letter and e-mail correspondence statistics to reveal their underlying similarity. P ower law statistics are a hallmark of critical phenomena. A less obvious characteristic of criticality is the emergence of univer-sality classes that capture the similarity of seemingly disparate systems. For example, despite the fact that water and carbon dioxide have different chemical properties, they were observed to behave in the same manner when close to their respective critical points (1). This is because idiosyncrasies, such as the existence of electric dipoles or the ability to form hydrogen bonds, become irrelevant near the liquid/gas critical point. For physical systems , renormalization group theory (2, 3) has enabled researchers to understand the deep connection between the symmetries of a system and the mechanisms that underlie its behavior. The similarity of different fluids near their respective liquid/gas critical points is often demonstrated by rescaling their statistics so that they collapse onto the same universal curves (often power law curves),which have particular scaling exponents. By grouping different substances into the same universality class, as identified by its scaling exponents, one discovers that fluids are described by the same statistical laws near the liquid/gas critical point as uniaxial magnets are near their paramagnetic critical point (1). One can also differentiate the behavior of these systems from the behavior …

References and Notes Supporting Online Material on Universality in Human Correspondence Activity

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