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(Almost) nothingbetter than to listen to a singer do blues standards under 
a blue Tucson sky.
She couldn't sing.

Selected articles below

   Barry Wellman

   Step by step, link by link, putting it together--Streisand/Sondheim
        The earth to be spannd, connected by network--Walt Whitman
              It's Always Something--Roseanne Roseannadanna

              A day like all days, filled with those events
          that alter and illuminate our times--Walter Cronkite
   NetLab Network      			                            FRSC
   Distinguished Visiting Scholar   Social Media Lab   Ryerson University
         Founder, International Network for Social Network Analysis
   NETWORKED: The New Social Operating System  Lee Rainie & Barry Wellman  

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Date: Mon, 18 Mar 2019 12:06:06 +0000
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Subject: [utf-8] Latest Complexity Digest Posts

Learn about the latest and greatest related to complex systems research. More at

Coevolution between the cost of decision and the strategy contributes to the evolution of cooperation

Cooperation is still an important issue for both evolutionary and social scientists. There are some remarkable methods for sustaining cooperation. On the other hand, various studies discuss whether human deliberative behaviour promotes or inhibits cooperation. As those studies of human behaviour develop, in the study of evolutionary game theory, models considering deliberative behaviour of game players are increasing. Based on that trend, the author considers that decision of a person requires certain time and imposes a psychological burden on him/her and defines such burden as the cost of decision. This study utilizes the model of evolutionary game theory that each player plays the spatial prisoner˙˙s dilemma game with opponent players connected to him/her and introduces the cost of decision. The main result of this study is that the introduction of the cost of decision contributes to the evolution of cooperation, although there are some differences in the extent of its
contribution regarding the three types of sparse topology of connections. Regarding the distribution of the cost of decision, especially in the case of the scale-free topology of connections, players with high cost of decision, which seem to be disadvantageous at first glance, sometimes become mainstream at the last.

Coevolution between the cost of decision and the strategy contributes to the evolution of cooperation
Tetsushi Ohdaira
Scientific Reports volume 9, Article number: 4465 (2019) |

Source: (

Physicists discover surprisingly complex states emerging out of simple synchronized networks

    "We want to learn how we can just tickle, or gently push, a system in the right direction to set it back into a synced state," says Michael L. Roukes, the Frank J. Roshek Professor of Physics, Applied Physics, and Bioengineering at Caltech, and principal investigator of the new Science study. "This could perhaps engender a form of new, less harsh defibrillators, for example, for shocking the heart back into rhythm."

Source: (

The Human Network

``The Human Network ( ''  is now available:

It discusses how a handful of simple and quantifiable features of human networks yield enormous insight into why we behave the way we do.   Two threads are interwoven: why human networks have special features, and how those features determine our power, opinions, opportunities, behaviors, and accomplishments.  Some of the topics included are:  the different ways in which a person˙˙s position in a network determines their influence;  which systematic errors we make when forming opinions based on what we learn from our friends; how financial contagions work and why are they different from the spread of a flu; how splits in our social networks feed inequality, immobility, and polarization; and how network patterns of trade and globalization are changing international conflict and wars.

The book is non-technical, with no equations but many pictures, and is full of rich examples and cases that illustrate the points.  It is not only useful for explaining network science to a lay audience, but also as a supplement for a course on networks.

Source: (

Taking connected mobile-health diagnostics of infectious diseases to the field

Combining mobile phone technologies with infectious disease diagnostics can increase patients˙˙ access to testing and treatment and provide public health authorities with new ways to monitor and control outbreaks of infectious diseases.

Taking connected mobile-health diagnostics of infectious diseases to the field
Christopher S. Wood, Michael R. Thomas, Jobie Budd, Tivani P. Mashamba-Thompson, Kobus Herbst, Deenan Pillay, Rosanna W. Peeling, Anne M. Johnson, Rachel A. McKendry & Molly M. Stevens
Nature volume 566, pages 467˙˙474 (2019)

Source: (

Complex Networks 2019

The International Conference on Complex Networks and their Applications aims at bringing together researchers from different scientific communities working on areas related to complex networks. Two types of contributions are welcome: theoretical developments arising from practical problems, and case studies where methodologies are applied. Both contributions are aimed at stimulating the interaction between theoreticians and practitioners.

The 8th International Conference on Complex Networks and Their Applications
December 10-12, 2019
Lisbon, Portugal

Source: (

Sponsored by the Complex Systems Society.
Founding Editor: Gottfried Mayer.
Editor-in-Chief: Carlos Gershenson.

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