Complexity Digest 2008.40

3-Oct-2008

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Content

  1. Behind Insurer's Crisis, Blind Eye to a Web of Risk, NY Times
    1. Economics: Can Neural Data Improve Economics?, Science
    2. Understanding Overbidding: Using the Neural Circuitry of Reward to Design Economic Auctions, Science
  2. EC Backs Business Use Of Social Networks, vnunet.com
  3. Emergent Community Structure In Social Tagging Systems, Adv. Complex Sys.
  4. A Cat's Cradle For Policy, Nature
  5. Learning From Mistakes Only Works After Age 12, Study Suggests, ScienceDaily
    1. Multiple Conflict-Driven Control Mechanisms In The Human Brain, Trends Cogn. Sc.
  6. Is Sleep Essential?, PLoS Biol
  7. Social Science: Unlocking The Potential Of The Spoken Word, Science
  8. The Coevolution of Cultural Groups and Ingroup Favoritism, Science
  9. Animal Behaviour: Counting Bee, Nature
    1. Predation Increases Acoustic Complexity In Primate Alarm Calls, Biol. Lett.
    2. Helping Behaviour And Regard For Others In Capuchin Monkeys, Biol. Lett.
  10. Sex is Always Well Worth Its Two-fold Cost, arXiv
  11. Neuroscience: An Ageing View Of Myelin Repair, Nature
    1. Aging: Searching For The Secrets Of The Super Old, Science
    2. Growing Up Too Fast May Mean Dying Young In Honey Bees, ScienceDaily
  12. Cancer: Entangled Pathways, Nature
    1. Cancer: The Metastasis Cascade, Science
  13. Intraseasonal Interaction Between The Madden-Julian Oscillation And The North Atlantic Oscillation, Nature
  14. Neuroscience: Sweet Connections, Nature
  15. Geophysics: Solid Rock Imposes Its Will On A Core's Magnetic Dynamo, Science
  16. Chemistry: Nonlinear Thinking About Molecular Energy Transfer, Science
  17. Nonlinear Dynamics: Loading The Dice, Nature
  18. What is a Systems Approach?, arXiv
  19. Complex Challenges: Global Terrorist Networks
    1. U.S. `War on Terror' Against Al-Qaeda Seen as Failure in Poll, Bloomberg
  20. Links & Snippets
    1. Other Publications
    2. Webcast Announcements
    3. Conference Announcements
    4. Other Announcements

  1. Behind Insurer's Crisis, Blind Eye to a Web of Risk, NY Times Next Article Bookmark and Share

    Excerpts: (...) insights into the mystifying, virally connected - and astonishingly fragile - financial world that began to implode in recent weeks.

    (...) the system was vulnerable because of intricate financial contracts known as credit derivatives, which insure debt holders against default. They are fashioned privately and beyond the ken of regulators - sometimes even beyond the understanding of executives peddling them.

    Originally intended to diminish risk and spread prosperity, these inventions instead magnified the impact of bad mortgages like the ones that felled Bear Stearns and Lehman and now threaten the entire economy.

    1. Economics: Can Neural Data Improve Economics?, Science Next Article Bookmark and Share

      Excerpts: Summary: Researchers are exploring how neurobiology can guide economic experiments and refine economic models. (...)

      Neuroeconomists Camerer et al. recently predicted that "We will eventually be able to replace the simple mathematical ideas that have been used in economics with more neurally-detailed descriptions" (2). By contrast, economic theorists Gul and Pesendorfer maintain that neuroscience evidence is irrelevant to economics because "the latter makes no assumptions and draws no conclusions about the physiology of the brain" (3). Limited to current practice in economics, the Gul-Pesendorfer assertion is correct. In a standard economic model, a decision-maker is confronted with several options, and the purpose of the exercise is to predict which one the subject will select.

    2. Understanding Overbidding: Using the Neural Circuitry of Reward to Design Economic Auctions, Science Next Article Bookmark and Share

      Excerpts: We take advantage of our knowledge of the neural circuitry of reward to investigate a puzzling economic phenomenon: Why do people overbid in auctions? Using functional magnetic resonance imaging (fMRI), we observed that the social competition inherent in an auction results in a more pronounced blood oxygen level-dependent (BOLD) response to loss in the striatum, with greater overbidding correlated with the magnitude of this response. Leveraging these neuroimaging results, we design a behavioral experiment that demonstrates that framing an experimental auction to emphasize loss increases overbidding.

  2. EC Backs Business Use Of Social Networks, vnunet.com Next Article Bookmark and Share

    Excerpts: Information Society and Media Commissioner Viviane Reding (...) that social networking sites can have a positive impact on European industry by boosting productivity and internal communications. "The result is that clients are for the first time truly engaged in a company's product innovation and development services, which should eventually lead to an increased client loyalty and more purchases," she said. "Other companies have opened specific networking sites for their own employees, giving them the possibility to operate as a community no matter where they physically are. "This gives employees the chance to feel involved in company decisions which helps engagement and increases productivity." (...)

  3. Emergent Community Structure In Social Tagging Systems, Adv. Complex Sys. Next Article Bookmark and Share

    Excerpt: A distributed classification paradigm known as collaborative tagging has been widely adopted in new Web applications designed to manage and share online resources. Users of these applications organize resources (Web pages, digital photographs, academic papers) by associating with them freely chosen text labels, or tags. Here we leverage the social aspects of collaborative tagging and introduce a notion of resource distance based on the collective tagging activity of users. We collect data from a popular system and perform experiments showing that our definition of distance can be used to build a weighted network of resources with a detectable community structure. (...)

  4. A Cat's Cradle For Policy, Nature Next Article Bookmark and Share

    Excerpts: The OECD is developing a strategy for nations to measure and ultimately promote innovation. (...)

    Developing such a strategy poses a significant challenge because of the complex nature of innovation. Innovation is the creation of something new - a good or a service, a way to deliver goods or services, an organizational or management structure - or the capturing of new markets. Knowledge is an important ingredient of innovation. (...) However, in a world of modularity and flexible platforms for technologies and practices, users are more able to improve and augment their systems, creating a web of knowledge that can change the behaviour of other users or of suppliers. This is a complex process, a system of innovation.

  5. Learning From Mistakes Only Works After Age 12, Study Suggests, ScienceDaily Next Article Bookmark and Share

    Excerpts: Eight-year-old children have a radically different learning strategy from twelve-year-olds and adults. Eight-year-olds learn primarily from positive feedback ('Well done!'), whereas negative feedback ('Got it wrong this time') scarcely causes any alarm bells to ring. Twelve-year-olds are better able to process negative feedback, and use it to learn from their mistakes. Adults do the same, but more efficiently. The switch in learning strategy has been demonstrated in behavioural research, which shows that eight-year-olds respond disproportionately inaccurately to negative feedback. But the switch can also be seen in the brain, as developmental psychologist (...) discovered using fMRI research. (...)

    1. Multiple Conflict-Driven Control Mechanisms In The Human Brain, Trends Cogn. Sc. Next Article Bookmark and Share

      Excerpt: Conflict between competing neural representations is thought to serve as an internal signal for the recruitment of ‘cognitive control', which resolves conflict by biasing information processing in line with current task demands. Because conflict can occur at different levels of stimulus and response representations, several recent investigations have examined whether conflict-driven cognitive control is domain-general or domain-specific, that is, whether control recruited by one type of conflict affects the resolution of another, but these studies have produced contrary conclusions. I argue here that a critical reading of this literature indicates that the effects of conflict-driven control are domain-specific (...).

  6. Is Sleep Essential?, PLoS Biol Next Article Bookmark and Share

    Excerpt: Everybody knows that sleep is important, yet the function of sleep seems like the mythological phoenix (...) But what if the search for an essential function of sleep is misguided? What if sleep is not required but rather a kind of extreme indolence that animals indulge in when they have no more pressing needs, such as eating or reproducing? In many circumstances sleeping may be a less dangerous choice than roaming around, wasting energy and exposing oneself to predators. (...) This "null hypothesis" would explain why nobody has yet identified a core function of sleep. But how strong is the evidence supporting it? And are there counterexamples?
    • Source: Is Sleep Essential?, Cirelli C, Tononi G, DOI: 10.1371/journal.pbio.0060216, PLoS Biol 6(8): e216, 2008/08/26

  7. Social Science: Unlocking The Potential Of The Spoken Word, Science Next Article Bookmark and Share

    Excerpts: Advances in speech processing may soon place speech and writing on a more equal footing, with broad implications for many aspects of society. (...)

    The wide diffusion of writing required standardization to facilitate mutual intelligibility. Will increasingly broad dissemination of spoken language accelerate the demise of regional dialects and less widely spoken languages? Written contracts today have greater legal standing than verbal ones. Will that distinction persist in a world in which spoken and written words have equal permanence? How can we harness this new technology to accelerate access to new knowledge, and what would be the implications of the resulting compression of innovation cycles?

  8. The Coevolution of Cultural Groups and Ingroup Favoritism, Science Next Article Bookmark and Share

    Excerpts: Cultural boundaries have often been the basis for discrimination, nationalism, religious wars, and genocide. Little is known, however, about how cultural groups form or the evolutionary forces behind group affiliation and ingroup favoritism. Hence, we examine these forces experimentally and show that arbitrary symbolic markers, though initially meaningless, evolve to play a key role in cultural group formation and ingroup favoritism because they enable a population of heterogeneous individuals to solve important coordination problems.

  9. Animal Behaviour: Counting Bee, Nature Next Article Bookmark and Share

    Excerpts: Honeybees (Apis mellifera) can count up to four - (...) fly down a tunnel in search of food placed beside one of five identical landmarks positioned at intervals. (...)

    Moving the landmarks nearer to or farther away from each other did not fool the bees, showing that they were not relying on distance, but were counting the number of landmarks before the food. Changing landmarks from stripes to spots had no effect either, suggesting that bees can use numbers in an abstract way.

    1. Predation Increases Acoustic Complexity In Primate Alarm Calls, Biol. Lett. Next Article Bookmark and Share

      Excerpts: According to most accounts, alarm calling in non-human primates is a biologically hardwired behaviour with signallers having little control over the acoustic structure of their calls. In this study, we compared the alarm calling behaviour of two adjacent populations of Diana monkeys (...) which differ significantly in predation pressure. At Taï, monkeys regularly interact with two major predators, crowned eagles and leopards, while at Tiwai, monkeys are only hunted by crowned eagles. We monitored the alarm call responses of adult male Diana monkeys to acoustic predator models. We found no site-specific differences (...) but there were consistent differences in how callers assembled calls into sequences. (...)

    2. Helping Behaviour And Regard For Others In Capuchin Monkeys, Biol. Lett. Next Article Bookmark and Share

      Excerpts: Altruism is an evolutionary puzzle. To date, much debate has focused on whether helping others without regard to oneself is a uniquely human behaviour, with a variety of empirical studies demonstrating a lack of altruistic behaviour in chimpanzees even when the demands of behaving altruistically seem minimal. By contrast, a recent experiment has demonstrated that chimpanzees will help a human experimenter to obtain an out-of-reach object, (...). Here, we examine the cognitive demands of other-regarding behaviour (...). (...) capuchin monkeys helped human experimenters even in the absence of a reward, but capuchins systematically failed to take into account the perspective of others (...).

  10. Sex is Always Well Worth Its Two-fold Cost, arXiv Next Article Bookmark and Share

    Excerpt: Sex is considered as an evolutionary paradox, since its evolutionary advantage does not necessarily overcome the two fold cost of sharing half of one's offspring's genome with another member of the population. Here we demonstrate that sexual reproduction can be evolutionary stable even when its Darwinian fitness is twice as low when compared to the fitness of asexual mutants. We also show that more than two sexes are always evolutionary unstable.

  11. Neuroscience: An Ageing View Of Myelin Repair, Nature Next Article Bookmark and Share

    Excerpts: When the myelin layer that covers neuronal processes is lost through disease, neural stem cells recapitulate the developmental program of 'myelination'. The underlying molecular mechanisms often fail in the ageing brain. (...)

    Therefore, impaired remyelination was associated with an age-dependent loss of 'epigenetic memory'. (...)

    A closer look revealed that the impaired remyelination in older mice did not result from various possible effects - an altered inflammatory response, for example, (...). Rather, genes encoding inhibitory transcription factors (...) and factors that promote stem-cell activity (...) were transcribed for much longer than normally seen in remyelination.

    1. Aging: Searching For The Secrets Of The Super Old, Science Next Article Bookmark and Share

      Excerpts: More and more people are living past 110. Can they show us all how to age gracefully? (...)

      "I think it's incredible how well off they are," says Perls. Although almost half of the supers had osteoporosis and almost 90% had cataracts, 41% of them either lived on their own or required only minimal help with tasks such as preparing food, dressing, and bathing. Cardiovascular disease, the leading killer in developed countries, was rare among supercentenarians--only 6% had suffered heart attacks and 13% reported strokes. Diabetes and Parkinson's disease were also uncommon in the group, striking only 3% of the subjects each. Like centenarians, supercentenarians seem to be good at putting off the day when they become disabled, says Perls.

    2. Growing Up Too Fast May Mean Dying Young In Honey Bees, ScienceDaily Next Article Bookmark and Share

      Excerpts: (...) transitions to aerobically-expensive behaviors in organisms living free in nature can have important consequences affecting the pace of aging. Reactive oxygen species (ROS) occur as a by-product of aerobic metabolism and impair cellular function by damaging proteins, nucleotides and lipids. Organisms possess a variety of anti-oxidant mechanisms to mitigate the effects of ROS, and the oxidative stress model of aging and senescence suggests that physiological performance declines with age due to lifetime accrual of ROS-induced damage and progressively limited anti-oxidant capacity. Hence, the onset, pace and duration of energetically-intense behaviors should affect lifetime kinetics of ROS-induced damage, anti-oxidant responses, physiological capacity and longevity. (...)

  12. Cancer: Entangled Pathways, Nature Next Article Bookmark and Share

    Excerpts: A medley of molecules, and the interactions between them, mediate cancer. The latest news is that the enzyme CDK8 orchestrates cross-talk between two signalling pathways that are frequently deregulated in human cancers.

    There is no simple answer to the question of which cellular proteins or signalling pathways are responsible for making a cell cancerous. (...) Mutations in the gene for the retinoblastoma tumour-suppressor protein, which is part of another signalling pathway, are also frequently associated with cancer. When put together, the findings of Firestein et al. and Morris et al., presented in this issue, lead to the identification of a point at which these important pathways could communicate with each other in colorectal cancer.

    1. Cancer: The Metastasis Cascade, Science Next Article Bookmark and Share

      Excerpts: The view of evolution of tumor cells toward metastasis takes a new twist. (...)

      The late metastasis model places selection of genetic and epigenetic alterations mostly inside the primary tumor. If so, late-disseminating cells are genetically similar to the primary tumor, which can be used as a surrogate marker to choose a drug against disseminated tumor cells. (Bottom) By contrast, early-disseminated tumor cells accumulate such alterations at distant sites and diverge genetically from the primary tumors. Consequently, they may respond differently to drugs that are administered systemically.

  13. Intraseasonal Interaction Between The Madden-Julian Oscillation And The North Atlantic Oscillation, Nature Next Article Bookmark and Share

    Excerpts: Bridging the traditional gap between the spatio-temporal scales of weather and climate is a significant challenge facing the atmospheric community. In particular, progress in both medium-range and seasonal-to-interannual climate prediction relies on our understanding of recurrent weather patterns and the identification of specific causes responsible for their favoured occurrence, persistence or transition. Within this framework, I here present evidence that the main climate intra-seasonal oscillation in the tropics - the Madden-Julian Oscillation (MJO) - controls part of the distribution and sequences of the four daily weather regimes defined over the North Atlantic-European region in winter.

  14. Neuroscience: Sweet Connections, Nature Next Article Bookmark and Share

    Excerpts: When a lab rat is learning that it will get a sugar treat shortly after a light flashes, the synapses within the dopamine circuitry in its brain become temporarily more efficient. (...)

    Learning to associate an environmental signal with a reward is critical for survival. Addictive drugs short-circuit this system. They similarly increase synaptic strength, but do so for very long periods.

  15. Geophysics: Solid Rock Imposes Its Will On A Core's Magnetic Dynamo, Science Next Article Bookmark and Share

    Excerpts: Mariners have been navigating by Earth's magnetic field for centuries. Seismologists detected the fluid-iron core that generates the magnetic field a century ago. But geodynamicists still struggle to understand exactly how the churning of the core's fluid iron generates the field inside Earth. One secret, according to two papers in this issue of Science, may lie in the far slower roiling of the solid rock overlying a planet's core. The authors draw on magnetic fields long frozen into the rocks of Earth and Mars to understand how motions in the solid rock can shape a planet's magnetic field.

  16. Chemistry: Nonlinear Thinking About Molecular Energy Transfer, Science Next Article Bookmark and Share

    Excerpts: Summary: Although solvent molecules move about randomly in a liquid, an experiment showed that changing their initial arrangement affected the rate of a chemical process. (...)

    What these special instances of nonlinear energy transfer do promise, however, are some long-sought experimental entries into the microscopic origins of friction. The slowing down of mechanical motion by friction is nothing but the effectively irreversible transfer of molecular kinetic energy into a sea of countless other molecular degrees of freedom. The second law of thermodynamics guarantees that such transfers occur, but it cannot explain how or when they happen, or reveal the specific molecular motions involved.

  17. Nonlinear Dynamics: Loading The Dice, Nature Next Article Bookmark and Share

    Excerpts: Gamblers - and Einstein - have assumed that throwing a die gives a random result. But does it? Jan Nagler of the Max Planck Institute for Dynamics and Self-Organization in Goettingen and Peter Richter of the University of Bremen in Germany have simplified the throw of a die to the two-dimensional case of a dumb-bell tossed onto a surface. Will it fall with one labelled end pointing to the left or to the right?

  18. What is a Systems Approach?, arXiv Next Article Bookmark and Share

    Abstract: What is a systems approach? The first step towards answering this question is an understanding of the history of the systems movement, which includes a survey of contemporary systems discourse. In particular, I examine how systems researchers differentiated their contribution from mechanistic science - but also from holistic doctrines; and identify the similarities and sharpest differences between complex systems and other systems approaches. Having set the scene, the second step involves developing a definition of 'system' consistent with the spirit of the systems approach.

  19. Complex Challenges: Global Terrorist Networks Next Article Bookmark and Share

    1. U.S. `War on Terror' Against Al-Qaeda Seen as Failure in Poll, Bloomberg Next Article Bookmark and Share

      Excerpts: The U.S. ``war on terror'' has failed to weaken its prime target al-Qaeda, according to a majority of people surveyed in a global opinion poll for the British Broadcasting Corp.

      Thirty percent of those questioned said President George W. Bush's campaign has made the terrorist network stronger, while 29 percent said it had no effect. Only 22 percent said al-Qaeda has been weakened.

      The survey of 23,937 people was conducted for the BBC's World Service in 23 nations between July 8 and Sept. 12 by GlobeScan Inc. and the University of Maryland's Program on International Policy Attitudes.

  20. Links & Snippets Next Article Bookmark and Share

    1. Other Publications Next Article Bookmark and Share

      1. Evolution of a Population of Random Boolean Networks, Tamara Mihaljev and Barbara Drossel, 2008/08/18, arXiv, DOI: 0808.2490
      2. Number Theoretic Example of Scale-free Topology Inducing Self-organized Criticality, Bartolo Luque, Octavio Miramontes and Lucas Lacasa, 2008/08/18, arXiv, DOI: 0809.2301
      3. Local Information Transfer As a Spatiotemporal Filter for Complex Systems, Joseph T. Lizier, Mikhail Prokopenko, Albert Y. Zomaya, 2008/08/19, arXiv, DOI: 0809.3275
      4. Gaslike Model of Social Motility, A. Parravano and L. M. Reyes, 2008/08/27, arXiv, DOI: 0808.3608
      5. The Sigma Profile: A Formal Tool to Study Organization and its Evolution at Multiple Scales, Carlos Gershenson, 2008/09/02, arXiv, DOI: 0809.0504
      6. Strategy Abundance in 2x2 Games for Arbitrary Mutation Rates, Tibor Antal, Martin A. Nowak, Arne Traulsen, 2008/09/17, arXiv, DOI: 0809.2804
      7. Review. Studying Cumulative Cultural Evolution In The Laboratory, C. A. Caldwell, A. E. Millen, 2008/09/17, Philosophical Transactions: Biological Sciences, DOI: 10.1098/rstb.2008.0146
      8. Review. Theoretical And Empirical Evidence For The Impact Of Inductive Biases On Cultural Evolution, T. L. Griffiths, M. L. Kalish, S. Lewandowsky, 2008/09/18, Philosophical Transactions: Biological Sciences, DOI: 10.1098/rstb.2008.0146
      9. Just In Time For School: Free Adeona Service Tracks Stolen Laptops, 2008/09/19, Innovations-report
      10. Republican And Democratic Values Compared, 2008/09/24, ScienceDaily & University of Missouri-Columbia
      11. 100 Million Years AD, 2008/09/26, Innovations-report
      12. Compound Could Help Detect Chemical, Biological Weapons At Long Distances, 2008/09/28, ScienceDaily & DOE/Argonne National Laboratory
      13. New Research Finds Workers More Prone To Lie In E-Mail, 2008/09/29, Innovations-report
      14. Chemical Organizations In A Toy Model Of The Political System, P. Dittrich - dittrichaminet.uni-jena.de, L. Winter - lwinterasoziologie.rwth-aachen.de, Aug. 2008, Advances in Complex Systems, DOI: 10.1142/S0219525908001878
      15. Evolution Of Complex Dynamics, R. Wilds, S. A. Kauffman, L. Glass, Sep. 2008, online 2008/07/31, Chaos, DOI: 10.1063/1.2962223

    2. Webcast Announcements Next Article Bookmark and Share

      1. Can Ants Solve Traffic Jams?, Danielle Parsons, Slatev.com, 08/07/22

        As roads and highways become ever more clogged, Danielle Parsons tells us how researchers are studying ways to learn from nature's own traffic-flow experts: ants.

      2. 7th Intl Conf on Complex Systems (ICCS), Boston, MA, 07/10/28-11/02
      3. Reseau Nationale des Systemes Complexes , (in French), 2007
      4. World Economic Forum , Davos, Switzerland, 08/01/22-27
      5. TED Talks, TED Conferences LLC , since 2006
      6. Talking Robots: The PodCast on Robotics and AI, Ecole Polytechnique Federale de Lausanne, Switzerland, 06/11/03
      7. Potentials of Complexity Science for Business, Governments, and the Media 2006, Budapest, Hungary, 06/08/03-05
      8. 6th Intl Conf on Complex Systems (ICCS), Boston, MA, 06/06/25-30
      9. Artificial Life X, 10th Intl Conf on the Simulation and Synthesis of Living Systems, Bloomington, IN, USA. 2006/06/03-07
      10. 6th Understanding Complex Systems Symposium, Urbana-Champaign, Il, 06/05/15-18
      11. Ralph Abraham on Complexity Digest, , Calcutta, India, 05/12/27
      12. An Afternoon with Michael Crichton, Washington, 05/11/06
      13. Illuminating the Shadow of the Future, Ann Arbor, Mi 05/09/23-25
      14. Open Network of Centres of Excellence in Complex Systems - Brainstorming Meeting, Paris, France 05/09/19-23
      15. Complexity, Science & Society Conference 2005, U. Liverpool, UK 2005/09/11-14
      16. ECAL 2005 - VIIIth European Conference on Artificial Life, Canterbury, Kent, UK 2005/09/5-9
      17. T. Irene Sanders, Executive Director and Founder, The Washington Center for Complexity & Public Policy, 05/08/27, QuickTime video (10:38 min), Podcast
      18. North American Society for the Psychology of Sport and Physical Activity 2005 Conference, Virtual Conference Network, St. Pete's Beach, Florida, 05/06/09-11
      19. Understanding Complex Systems - Computational Complexity and Bioinformatics, Virtual Conference Network, Urbana-Champaign, Il, UIUC, 05/05/16-19
      20. Nonlinearity, Fluctuations, and Complexity, with a celebration of the 65th birthday of Gregoire Nicolis. , Complexity Session, Universite' Libre de Bruxelles, Brussels, Belgium, 05/03/16
      21. 1st European Conference on Complex Systems, Torino, Italy, 04/12/5-7
      22. From Autopoiesis to Neurophenomenology: A Tribute to Francisco Varela (1946-2001), Paris, France, 2004/06/18-20
      23. Evolutionary Epistemology, Language, and Culture, Brussels, Belgium, 04/05/26-28
      24. International Conference on Complex Systems 2004, Boston, 04/05/16-21
      25. Nonlinear Dynamics And Chaos: Lab Demonstrations, Strogatz, Steven H., Internet-First University Press, 1994
      26. CERN Webcast Service, Streamed videos of Archived Lectures and Live Events
      27. Dean LeBaron's Archive of Daily Video Commentary, Ongoing Since February 1998
      28. Edge Videos

    3. Conference Announcements Next Article Bookmark and Share

      1. 1st Intl Conf on the Evolution and Development of the Universe, Paris, France, 08/10/08-09
      2. Spatial Evolutionary Dynamics Workshop, Paris, France, 08/10/17
      3. OD Network Conference 2008 - Advancing The Theory And Practice Of OD, Austin, Texas, 08/10/19-22
      4. International Congress on Complex Thought, Hermosillo , Sonora , Mexico, 08/10/21-24
      5. What Is Computation? (How) Does Nature Compute? - 2008 Midwest NKS Conference, Bloomington, IN, 08/10/30-11/02
      6. 2nd Intl Congress of Complex Systems in Sport (2nd ICCSS) and 10th European Workshop of Ecological Psychology. (10th EWEP), Funchal, in Madeira Island, Portugal, 08/11/05-08
      7. 2008 IEEE/WIC/ACM International Conference on Web Intelligence (WI-08), Sydney, Australia, 08/12/09-12
      8. "Approaching Complexity" Workshop, IT Revolutions, Venice, 08/12/17-19
      9. COMPLEX'2009, First Intl Conf on Complex Systems: Theory and Applications, Shanghai, China, 09/02/23-25
      10. Models and Simulations 3 Conference, Charlottesville, USA 09/03/05-07
      11. 2nd Conf on Artificial General Intelligence (AGI-09.org), Arlington, Virginia, 09/03/06-09
      12. 2009 IEEE Symposium Series on Computational Intelligence, Nashville, Tennessee, USA,09/03/30-04/02
      13. 2nd Chaotic Modeling and Simulation International Conference (CHAOS2009), Chania, Crete, Greece, 09/06/01-05
      14. 2009 Intl Conf of the System Dynamics Society, Albuquerque, New Mexico, 09/07/26-30

    4. Other Announcements Bookmark and Share

      1. A short notice from Dean LeBaron

        Dear ComDig Readers,

        Our editor, Dr. Gottfried Mayer, is affectionately esteemed by many of you -- as readers, you know he devotes himself unselfishly to widening our knowledge of complexity science. He was recently diagnosed with advanced colon cancer and given a timetable of a very few years. Knowing Gottfried, you can imagine that, in addition to the customary processes of chemotherapy, he would explore other frontier therapies, especially those arising out of interdisciplinary applications of complexity. These are expensive ... if he can find them.

        Many of you have sent your good wishes and indicated your desire to assist. With Gottfried's permission, I am posting this note with information, below, about how to send contributions to him. Please indicate the source since Gottfried will want to express his warm gratitude.

        I know that Gottfried, the good scientist that he is, will explain from time to time what he is doing and what the results are ... and we will follow his progress with great interest and hope.

        Dean LeBaron
        Publisher, Complexity Digest

        Bank Information:

        If your contribution is made by check:
        Please mail the check, payable to "Gottfried Mayer", to:
        Manufacturers & Traders Trust
        2080 Western Avenue
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        (on the back of the check, please write: "For Deposit Only: Account # 983 338 3814")

        If your contribution is made by wire:
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        Ref. Gottfried Mayer


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