Complexity Digest 2002.42

21-Oct-2002

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Content

  1. The Management Secrets of the Brain, Business 2.0
    1. A Question of Will,, Boston Globe Online
  2. Auditors Say U.S. Agencies Lose Track of Billions, NYTimes
    1. Defenseless Spending?, abcnews.com
  3. Unsolved Marketing Mysteries, Darwin Mag
    1. Solving The Freeloaders Paradox: Evolution Of Cooperation Among Nonrelatives, PNAS
  4. What Does The Internet Look Like?, The Economist
    1. Software Predicts User Behaviour To Stop Attacks, New Scientist
  5. Expanding Protein Universe And Its Origin From The Biological Big Bang, PNAS
  6. Plants Talk--But Can They Listen?, Science
  7. Microbial Food Webs: The Ocean's Veil, Nature
  8. Archaeology: Life With The Artificial Anasazi, Nature
    1. Open-Ended Artificial Evolution, arXiv
  9. Testosterone In Utero Dictates How Stressful Experience Will Affect Learning, PNAS
  10. Safer Gene Therapy Developed, BBC News
  11. Domino Effects From Battles Against Microbes, Science
  12. Making Bone: Novel Form Of Vitamin D Builds Up Rat Skeleton, Science News
    1. Biomineralization: At the Cutting Edge, Science
    2. Electrical Cues Regulate The Rate Of Wound Healing Invivo, PNAS
  13. Gene Prevents 'Brains Everywhere' U Utah Press Release
  14. Ecology: Biodiversity in the Scales, Nature
  15. Synchronizing to Periodicity: Transient Information and Synchronization Time, arXiv
  16. Single Photon Quantum Cryptography, Phys. Rev. Lett.
    1. Single Molecules: Molecular Entanglements, Science
    2. Quantum Experiment Asks 'How Big Is Big?', Science
  17. Mechanics: Buckling Cascades In Free Sheets
  18. Circular Reasoning, Cognitive Science
  19. Complex Challenges: Global Terrorist Networks
    1. Interdependent Security, Brookings Policy Brief
    2. Rumsfeld's Exaggerations: On The Sadam/Al Qaeda Link, In the National Interest
    3. Bali Bombing May Represent New Wave Of Al Qaeda Strikes, Washington Post
    4. Bali Bombing Fuels Debate on Iraq War
    5. Report Decries Saudi Laxity, Washington Post
  20. Links & Snippets
    1. Other Publications
    2. Webcast Announcements
    3. Conference Announcements
      1. Public Conference  Calls
    4. Complexity: Art and Complex Systems, Art Exhibit
    5. Dynamic Modeling,, Course Announcement

  1. The Management Secrets of the Brain, Business 2.0 Next Article Bookmark and Share

    Excerpts: Your brain is the ultimate example of a complex, decentralized organization. And because we (usually) behave coherently, smoothly integrating new circumstances as they arise, the brain is also the epitome of an adaptive organization, a learning organization, a shared-vision organization -- in short, the ideal modern company.

    While "it's not necessarily how you'd want to organize a human social structure," says psychologist Jonathan Cohen, (...) Center for the Study of Brain, Mind, and Behavior, the brain provides some interesting insight into how a well-run corporation can function.


    1. A Question of Will,, Boston Globe Online Next Article Bookmark and Share

      Excerpts: What Libet did was to measure electrical changes in people's brains as they flicked their wrists. And what he found was that a subject's ''readiness potential'' - the brain signal that precedes voluntary actions - showed up about one-third of a second before the subject felt the conscious urge to act.

      (…) ''The initiation of the freely voluntary act appears to begin in the brain unconsciously, well before the person consciously knows he wants to act!''

      (…) could be that the experience of will simply enters our consciousness with a delay (…).


  2. Auditors Say U.S. Agencies Lose Track of Billions, NYTimes Next Article Bookmark and Share

    Excerpts: (...) auditors studying the financial records of federal government departments find many of them so disorganized, even chaotic, that the agencies cannot account for tens of billions of dollars.

    What is more, when many agencies realize that they have made major accounting errors, rather than looking back to see where the money went, they simply enter multibillion-dollar balance adjustments, writing off the money. (...)

    The Department of Defense routinely makes the largest financial blunders. In the fiscal year that ended Sept. 30, 2000, (...) totaling $1.1 trillion.


    1. Defenseless Spending?, abcnews.com Next Article Bookmark and Share

      Excerpts: The accounting is so lax, defense department employees used your tax dollars - maybe millions of the more than a trillion that the department can't account for - to buy things like engagement rings, clothing, groceries, even Elvis photos from Graceland (...).

      These spending sprees happened because the Defense Department's policy of giving out credit cards to ... almost anybody.

      The department's idea was to make buying supplies more efficient. However, one credit application that the government uses, allows even people with bad credit ratings to get credit cards.


  3. Unsolved Marketing Mysteries, Darwin Mag Next Article Bookmark and Share

    Excerpts: Just because the Energizer Bunny is widely recognized (...), doesn't necessarily mean that consumers are more likely to buy Energizer batteries. Figuring out which marketing messages actually translate into sales and revenues is the Holy Grail of marketers. Some marketers in search of data are turning to what are called marketing automation technologies, which analyze data from various sources such as CRM systems, point-of-sale systems and other databases.

    A recent report shows that measuring multimedia campaigns and the associated sales impact are the top challenges of marketers today.

    • Unsolved Marketing Mysteries, New technologies may help marketers measure the efficacy of their messages, Jon Surmacz, Darwin Mag, 02/10/16

    1. Solving The Freeloaders Paradox: Evolution Of Cooperation Among Nonrelatives, PNAS Next Article Bookmark and Share

      Excerpts: One of the enduring problems in the study of social evolution has been to understand how cooperation can be maintained in the presence of freeloaders, individuals that take advantage of the more cooperative members of (...). The freeloader problem has been particularly troublesome when groups consist of nonrelatives, and no inclusive fitness benefits accrue to individuals that contribute more heavily to communal activities. These theoretical difficulties, however, are not mirrored by the numerous examples of cooperative or even altruistic behaviors exhibited by groups of nonrelatives in nature (...)


  4. What Does The Internet Look Like?, The Economist Next Article Bookmark and Share

    Excerpts: Already, understanding the net's scale-free structure has led to new results. For example, it had long been thought that the best way to curb the spread of a computer virus was to change the software of machines on the net so that they were less easily "infected". (…) That is not true in a scale-free setting. There, most software changes make no difference to the rate at which a virus spreads (…). However, treating a relatively small number of hubs in a scale-free system can stamp viruses out completely.

    1. Software Predicts User Behaviour To Stop Attacks, New Scientist Next Article Bookmark and Share

      Excerpts: New computer-monitoring software designed to second-guess the intentions of individual system users could be close to perfect at preventing security breaches, say researchers.

      Existing systems usually monitor the data flowing through whole networks and are typically between 60 and 80 per cent reliable, the researchers say. Tests simulating inside attacks indicate that the new software would be up to 94 per cent reliable once implemented.

      The software generates a profile for each individual on a network by analyzing the specific commands they enter at their terminal.


  5. Expanding Protein Universe And Its Origin From The Biological Big Bang, PNAS Next Article Bookmark and Share

    Excerpt: The bottom-up approach to understanding the evolution of organisms is by studying molecular evolution. With the large number of protein structures identified in the past decades, we have discovered peculiar patterns that nature imprints on protein structural space in the course of evolution. In particular, we have discovered that the universe of protein structures is organized hierarchically into a scale-free network. By understanding the cause of these patterns, we attempt to glance at the very origin of life.

  6. Plants Talk--But Can They Listen?, Science Next Article Bookmark and Share

    Excerpt: What is not yet known, however, is whether plants growing under natural (or agricultural) conditions respond directly to volatile signals from other plants. Many of the recent experiments on this question have been conducted under laboratory conditions that artificially (and, possibly, artifactually) raise the concentrations of the volatile compounds under consideration. Simple calculations of biogenic flux and turbulent diffusion rates suggest that most plants growing outdoors see concentrations of biogenic volatiles several orders of magnitude lower than those commonly used in lab and growth chamber experiments.

  7. Microbial Food Webs: The Ocean's Veil, Nature Next Article Bookmark and Share

    Excerpts: To experience a change of surroundings, a bacterial cell has to race against its medium with the speed of a greyhound - about 20 body lengths per second. This is the speed attained by our gut bacteria (Escherichia coli), yet some planktonic bacteria can move five times faster.(...)

    So bacteria can afford to zip around at their maximum speed, restlessly searching for nutritive hotspots such as leaking large organisms or flocks of detritus. But many bacteria are non-motile and thrive on nutrients supplied by molecular diffusion.


  8. Archaeology: Life With The Artificial Anasazi, Nature Next Article Bookmark and Share

    Excerpts: How can the complex dynamics of human societies - such as population rise and fall, and movement - be explained? Combining masses of data with computer modelling is a fresh way forward. (...) Until its disappearance around AD 1350, Anasazi society was marked by fluctuations in total population size, mean settlement size and preferred habitat. But why? It is generally agreed that the answers depend partly on rainfall and on groundwater levels, variations in either of which would affect Anasazi maize-based agriculture.

    1. Open-Ended Artificial Evolution, arXiv Next Article Bookmark and Share

      Abstract: Of all the issues discussed at Alife VII: Looking Forward, Looking Backward [conference debate], the issue of whether it was possible to create an artificial life system that exhibits open-ended evolution of novelty is by far the biggest. Of the 14 open problems settled on as a result of debate at the conference, some 6 are directly, or indirectly related to this issue. Most people equate open-ended evolution with complexity growth, although a priori these seem to be different things. In this paper I report on experiments to measure the complexity of Tierran organisms, and show the results for a size-neutral run of Tierra. In this run, no increase in organismal complexity was observed, although organism size did increase through the run. This result is discussed, offering some signposts on path to solving the issue of open ended evolution.


  9. Testosterone In Utero Dictates How Stressful Experience Will Affect Learning, PNAS Next Article Bookmark and Share

    Excerpts: Exposure to an acute stressful event can enhance learning in male rats, whereas exposure to the same event dramatically impairs performance in females. Here we tested whether the presence of sex hormones during early development organizes these opposite effects of stress on learning in males vs. females. (...) Thus, the presence of sex hormones during gestation and development organizes whether and how acute stressful experience will affect the ability to acquire new information in adulthood. (...)these cognitive responses to stress appear to be masculinized by exposure to testosterone (...).

  10. Safer Gene Therapy Developed, BBC News Next Article Bookmark and Share

    Excerpts: Scientists have developed a new form of gene therapy that appears to be less risky than current techniques.(...) The goal of gene therapy is to insert a healthy copy of a gene into a cell where it can take over for a faulty version. (...) The researchers have mimicked the process by inserting a gene that stimulates production of the same protein alongside the therapeutic gene. This means the protein is on hand to guide the therapeutic gene to the right position on the host's chromosome.

  11. Domino Effects From Battles Against Microbes, Science Next Article Bookmark and Share

    Excerpts:  Antibiotic-resistant bacteria infest hospital catheters, the hands of health care workers, the dirt on supermarket potatoes, and even captive dolphins. Ever more information about how to genetically manipulate microbes could allow terrorists to cause mayhem with bioweapons. And a more mundane threat, nose picking (yes, nose picking), might routinely move dangerous bugs from the skin into the nasal cavity.

    (…) Another analysis pushed for wider use of the influenza vaccine, arguing that immunizing all infants against the nasty virus could have profound public health benefits.


  12. Making Bone: Novel Form Of Vitamin D Builds Up Rat Skeleton, Science News Next Article Bookmark and Share

    Excerpts: Calcium is indispensable for bone growth, and vitamin D is needed to maintain proper amounts of calcium in the body. But as people age, they lose bone mass, often despite taking supplements of calcium and vitamin D.

    (...) a newly synthesized form of vitamin D, called 2MD, induces bone-making cells to capture calcium and fortify bone mass. When given to rats, 2MD significantly increases the animals' bone density (...).

    In lab-dish experiments with cells called osteoblasts, 2MD boosted the mineralization that's normally part of bone manufacture to at least five times (...)


    1. Biomineralization: At the Cutting Edge, Science Next Article Bookmark and Share

      Excerpts: (…) a copper chloride mineral, atacamite, is formed in the teeth of the carnivorous marine worm Glycera (…). It is the first copper mineral to be identified that is formed under controlled conditions in an organism (3), prompting the question of how they can scavenge enough copper from their surroundings to produce this mineral.

      Many fundamental questions remain to be addressed regarding recognition and assembly in complex three-dimensional biological tissues such as teeth. Understanding these processes (…) has much relevance to medicine.


    2. Electrical Cues Regulate The Rate Of Wound Healing Invivo, PNAS Next Article Bookmark and Share

      Excerpts: Controlling cell division is fundamental. One environmental cue that exerts profound control over both the orientation and frequency of cell division in vivo is a naturally occurring, wound-induced electric field (EF). (...) Remarkably, an endogenous EF also enhanced the frequency of cell division. This also was regulated by enhancing or suppressing the EF pharmacologically. Because the endogenous EF also regulated the wound healing rate, it may act as one control of the interplay between cell migration and cell division during healing.

  13. Gene Prevents 'Brains Everywhere' U Utah Press Release Next Article Bookmark and Share

    Excerpts: Scientists at the University of Utah and in Japan have discovered a gene that ensures the flatworm's brain develops within its head. When the "brains everywhere" gene is silenced, brain material develops throughout the body, including the worm's tail.

    The human version of the gene probably is not involved in keeping the human brain inside the skull, but likely plays some other role in nervous system development in human embryos (...).

    "We have identified a gene in flatworms that is present in humans and for which no function was known,"(...)


  14. Ecology: Biodiversity in the Scales, Nature Next Article Bookmark and Share

    Excerpts: Species diversity is central to ecological studies. But it is a challenging parameter to measure because diversity is organized hierarchically: individual organisms are classified into species, species into genera, genera into families, and so on. (...) Enquist and colleagues describe tight scaling relationships between species richness and diversity among the higher taxa (genera or families), in both living and fossil plant communities. These patterns should eventually help in understanding how species diversity is controlled and how total biomass is partitioned among coexisting species.

  15. Synchronizing to Periodicity: Transient Information and Synchronization Time, arXiv Next Article Bookmark and Share

    Abstract: We analyze how difficult it is to synchronize to a periodic sequence whose structure is known, when an observer is initially unaware of the sequence's phase. We examine the transient information T, a recently introduced information-theoretic quantity that measures the uncertainty an observer experiences while synchronizing to a sequence. We also consider the synchronization time tau, which is the average number of measurements required to infer the phase of a periodic signal. (...)transient information and synchronization time capture different and complementary structural properties of individual periodic sequences (...)

     


  16. Single Photon Quantum Cryptography, Phys. Rev. Lett. Next Article Bookmark and Share

    Abstract: We report the full implementation of a quantum cryptography protocol using a stream of single photon pulses generated by a stable and efficient source operating at room temperature. The single photon pulses are emitted on demand by a single nitrogen-vacancy color center in a diamond nanocrystal. The quantum bit error rate is less that 4.6% and the secure bit rate is 7700 bits/s. The overall performances of our system reaches a domain where single photons have a measurable advantage over an equivalent system based on attenuated light pulses.

    1. Single Molecules: Molecular Entanglements, Science Next Article Bookmark and Share

      Excerpts: Quantum mechanics may thus seem detrimental, but it may also offer unexpected new routes for information processing, much as lasers opened a wealth of applications outside the reach of classical light sources.

      A unique feature of quantum mechanics is entanglement--the possibility of preparing coherent mixtures of quantum states. Entangled states involve strong phase correlations between two subsystems. Although these systems can be physically separated, they can no longer be considered as independent, even when they are very far from one another.


    2. Quantum Experiment Asks 'How Big Is Big?', Science Next Article Bookmark and Share

      Excerpt: If the experiment actually puts a mirror into superposition, it will suggest that there is nothing fundamental about large things that makes them behave like classical objects rather than quantum ones. "If quantum mechanics hasn't gone wrong at the size of a cell," Tegmark says, "it probably won't go wrong with something the size of a mouse or a human." Bouwmeester's team is already testing components that will go into the lab setup, which requires very high vacuums, very cold temperatures, and very precise measuring equipment.


  17. Mechanics: Buckling Cascades In Free Sheets Next Article Bookmark and Share

    Excerpt: The edge of a torn plastic sheet forms a complex three-dimensional fractal shape. We have found that the shape results from a simple elongation of the sheet in the direction along its edge. Natural growth processes in some leaves, flowers and vesicles could lead to a similar elongation and hence to the generation of characteristic wavy shapes.

    We used rectangular plastic sheets pulled from the sides (...) to generate a steadily travelling crack (...). The high stresses near the crack tip produce an irreversible plastic deformation of the sheet (...).


  18. Circular Reasoning, Cognitive Science Next Article Bookmark and Share

    Abstract: Good informal arguments offer justification for their conclusions. They go wrong if the justifications double back, rendering the arguments circular. Circularity, however, is not necessarily a single property of an argument, but may depend on (a) whether the argument repeats an earlier claim, (b) whether the repetition occurs within the same line of justification, and (c) whether the claim is properly grounded in agreed-upon information. The experiments reported here examine whether people take these factors into account in their judgments of whether arguments are circular and whether they are reasonable. The results suggest that direct judgments of circularity depend heavily on repetition and structural role of claims, but only minimally on grounding. Judgments of reasonableness take repetition and grounding into account, but are relatively insensitive to structural role.

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

    Excerpts: Why would an airline decline to take available measures to protect itself and its passengers from harm? Precisely because something is happening that militates against purchasing the desirable screening tools, aside from the issue of pure cost: a phenomenon that causes a critical reduction in incentives for investing in proven preventive security. This phenomenon can undermine the ability of an entire industry to take reasonable precautions against catastrophe. The force that is so powerful that it could negate the compulsion to protect life and property is simply the interdependent nature of airline security.
    •  Interdependent Security, Implications for Homeland Security Policy and Other Areas, Brookings Policy Brief by Howard Kunreuther, Geoffrey Heal, and Peter Orszag (Oct. 2002)

    1. Interdependent Security, Brookings Policy Brief Next Article Bookmark and Share

      Excerpts: Ever since the September 11 attacks, (...), advocates of overthrowing Saddam Hussein have sensed an opportunity to press their case. Realizing that the country was anxious for action to improve its security, they thought that the terrorist attacks could produce a political climate more conducive to their longstanding goal of deposing the butcher of Baghdad. Unfortunately, the enthusiasm of some such advocates has sometimes led them to deliberately mislead the American people about a possible tie between Saddam Hussein and Al-Qaeda.

    2. Rumsfeld's Exaggerations: On The Sadam/Al Qaeda Link, In the National Interest Next Article Bookmark and Share

      Excerpts: For the last month, the level of terrorist threat against Americans at home and overseas has remained higher than it was around Sept. 11, but U.S. intelligence agencies have been unable to narrow the threat to particular geographic locations and did not detect any heightened terrorist activity preceding Saturday's deadly bombing in Indonesia, (...).

      U.S. officials said it appeared that the bombing represents the latest in a new wave of attacks being carried out or directed by a partially intact al Qaeda leadership and their sympathizers.


    3. Bali Bombing May Represent New Wave Of Al Qaeda Strikes, Washington Post Next Article Bookmark and Share

      Excerpt: Some Bush administration officials have become concerned that the rash of attacks in Indonesia, Yemen and Kuwait in the past week could undermine public support for a confrontation with Iraq by reminding Americans that the country still faces a long struggle in the war on terrorism.

      One senior administration official said that, in the debate over the congressional resolution authorizing military action against Iraq, Sen. Bob Graham (D-Fla.) made a forceful argument that a war against Iraq now would not only undermine the war against terrorism but possibly expand it.

      • Bali Bombing Fuels Debate on Iraq War, Bush Aides Worry That Attacks Will Erode Public Support for Confronting Hussein , Glenn Kessler, Washington Post Staff Writer, Thursday, October 17, 2002; Page A18

    4. Bali Bombing Fuels Debate on Iraq War Next Article Bookmark and Share

      Excerpts: The Bush administration's efforts to cut off funds for international terrorism are destined to fail until it confronts Saudi Arabia, whose leaders have tolerated some of its wealthy citizens raising millions of dollars a year for al Qaeda, (…).

      The report from the New York-based Council on Foreign Relations, scheduled for release today, contends that the administration must pressure the Saudis -- as well as other governments -- to crack down on terror financing, even at the risk of sparking a public backlash that could jeopardize the Saudi government.


    5. Report Decries Saudi Laxity, Washington Post Next Article Bookmark and Share

  20. Links & Snippets Next Article Bookmark and Share

    1. Ever-Changing Modern Music, Controlled by a Cursor, Matthew Mirapaul, NYTimes, 02/10/14
    2. Sexual Dimorphism In The Complexity Of Cardiac Pacemaker Activity, Terry B. J. Kuo, Cheryl C. H. Yang, AJP: Heart 2002 October 1; 283(4): p. H1695-H1702
    3. Carbon emissions from tropical deforestation and regrowth based on satellite observations for the 1980s and 1990s, Ruth S. DeFries, Richard A. Houghton, Matthew C. Hansen, Christopher, B. Field, David Skole, John Townshend, PNAS published 16 October 2002, 10.1073/pnas.182560099
    4. Extracting 3D from Motion: Differences in Human and Monkey Intraparietal Cortex, W. Vanduffel, D. Fize, H. Peuskens, K. Denys, S. Sunaert, J. T. Todd, G. A. Orban p. 413
    5. OPTICS: A New Low for Nonlinear Optics, M. C. Downer, Science 2002 298: 373-375
    6.  IVF Test Promises End to Miscarriage Misery, Mark Henderson, The Times, 2002-10-12
    7. Woman Gives Birth After Frozen Egg Breakthrough, Nigel Hawkes, The Times, 2002-10-11
    8. Endocrine Programming and Fetal Origins of Adult Disease. David I.W. Phillips. BioMedNet.
    9. Therapeutic Challenges Posed by Bacterial Bioterrorism Threats. Peter H. Gilligan. BioMedNet, Current Opinion in Microbiology 2002, 5:489-495
    10. Chaotic Strings And Standard Model Parameters, C. Beck, Physica D: Nonlinear Phenomena, Vol. 171 (1-2) pp.:72-106, October 2002
    11. Self-Organized Pacemakers In Birhythmic Media, M. Stich, M.  Ipsen, A. S. Mikhailov, Physica D: Nonlinear Phenomena, Vol. 171 (1-2), pp:19-40, October 2002
    12. Assessing Nonlinear Structures In Real Exchange Rates Using Recurrence Plot Strategies, J. B. Franch, D. Contreras, L. T. Lledó, Physica D: Nonlinear Phenomena, Vol. 171 (4), pp.:249-264, October 2002
    13. Psychologists Draw An "Architecture Of Attention," Outlining Three Brain-Based Building Blocks, ScienceDaily, Posted 10/14/2002
    14. Chaos Seen In Movement Of Ring-Herding Moons Of Saturn, ScienceDaily, Posted 10/14/2002
    15. UCLA Neuroscientists Discovery Distinct Molecular Key To Overcoming Fear, ScienceDaily, Posted 10/15/2002
    16. Engineers Develop Economical Terrorist-Resistant Air Conditioning Concept, ScienceDaily, Posted 10/16/2002>
    17. Unifying Evolutionary Dynamics, K. M. Page, M. A. Nowak, J. Theor. Biol., Vol. 219, No. 1, pp:93-98, November 7, 2002
    18. On The Recovery Of Joint Distributions From Limited Information, D. J. Miller   ,W. Liu, J. Econometrics, 107(1-2), pp: 259-274, July 2002
    19. Two-Level Evolution Of Foraging Agent Communities,M. Alfonseca, J. de Lara, BioSystems, Vol. 66 (1-2), pp.:21-30, July2002
    20. Alternans And 2:1 Rhythms In An Ionic Model Of Heart Cells, C. Zemlin , E. Storch, H. Herzel, BioSystems, Vol. 66 (1-2), pp.:1-10, July 2002
    21. New Internet Music Phenomenon Paves The Way For Musical Web Search-Engine, K. Hunter, Alphagalileo, 14 October 2002
    22. Shadowability Of Statistical Averages In Chaotic Systems Y. C. Lai, Z. Liu, G. W. Wei, C. H. Lai, Phys. Rev. Lett. 89, 184101, 28 October 2002
    23. Noise-Driven Manifestation Of Learning In Mature Neural Networks, C. Monterola, C.  Saloma, Phys. Rev. Lett. 89, 188102, 28 October 2002
    24. Gap Bifurcations In Nonlinear Dynamical Systems, F. B. Rizzato, R. Pakter, Phys. Rev. Lett. 89, 184102, 28 October 2002
    25. Thermodynamical Approach To Quantifying Quantum Correlations, J. Oppenheim, M.  Horodecki, P. Horodecki, R. Horodecki, Phys. Rev. Lett. 89, 180402, 28 October 2002
    26. On the Prospects of Chaos Aware Traffic Modeling, A. Fekete, M. Marodi, G. Vattay, arXiv
    27. Do Sperm Cells Remember?, Peter Brugger, Ervin Macas , Jürgen Ihlemann, Behavioural Brain Research Volume 136, Issue 1, pp. 325-328, 2002
    28. Mining the Web for Lexical Knowledge to Improve Keyphrase Extraction: Learning from Labeled and Unlabeled Data, Turney, Peter, CogPrints, 2002
    29. Cellular Automata and Communication Complexity, Christoph Durr , Ivan Rapaport , Guillaume Theyssier, arXiv, Paper ID: cs.CC/0210008, 2002-10-11
    30. A Uniform Approximation for the Fidelity in Chaotic Systems. Nicholas R. Cerruti and Steven Tomsovic. arXiv.
    31. The Renormalization Group and the Dynamics of Genetic Systems. Christopher R. Stephens. arXiv.
    32. Selection of Future Events From a Time Series in Relation to Estimations of Forecasting Uncertainty . Igor B. Konovalov. arXiv.
    33. Power-law Temporal Auto-correlations in Day-long Records of Human Physical Activity and their Alteration with Disease. Luis A. Nunes Amaral, et al. arXiv.
    34. Crowd Behaves as Excitable Media During Mexican Wave. Illes Farkas, Dirk Helbing, Tamas Vicsek. arXiv.
    35. Microsimulations of Freeway Traffic Including Control Measures. Martin Treiber, Dirk Helbing. arXiv.
    36. Dynamical Model of Financial Markets: Fluctuating 'Temperature' causes Intermittent Behavior of Price Changes. Naoki Kozuki, Nobuko Fuchikami. arXiv.
    37. Log-periodic Self-similarity: an Emerging Financial Law?. S. Drozdz, F. Grummer, F. Ruf, J. Speth. arXiv.
    38. Mixing Patterns and Community Structure in Networks. M. E. J. Newman, M. Girvan. arXiv.
    39. Managing Catastrophic Changes in a Collective. David Lamper, Paul Jefferies, Michael Hart, Neil F. Johnson . arXiv.
    40. Drift- or Fluctuation-Induced Ordering and Self-Organization in Driven Many-Particle Systems. Dirk Helbing, Tadeusz Platkowski. arXiv
    41. "Deep Fritz" Evens up Chess Challenge, Reuters, 02/10/16

    1. Other Publications Next Article Bookmark and Share

      1. Genomics and the Future of Health and Society, Institute of Medicine, 02/10/14
      2. Organizational Change and Leadership, Institute of Medicine, 02/10/1
      3. 7th Experimental Chaos Conference, San Diego, Ca, 02/08/26-29, Video/Audio Report
      4. Seventh International Conference on the Simulation of Adaptive Behavior, Edinburgh, UK, 02/08/04-11, Video/Audio Reports
      5. The Technology Frontier, Gemini Ernst & Young Center for Business Innovation, 02/09/18
      6. Brookings Report Urges Congress to Revise President Bush's Homeland Security Proposal, A Brookings Press Briefing, 02/07/15, Event Video
      7. International Conference on Complex Systems (ICCS2002), Nashua, NH, 02/06/09-14 (video + mp3 downloadable audio)
      8. Understanding Complex Systems: Symposium Complexity in Physical and Biological Structures, Medicine & Ecology, Department of Physics, University of Illinois at Urbana-Champaign, 02/05/13-15
      9. ROBOT: The Future of Flesh and Machine, Rodney A. Brooks, MIT AI Lab, Talk given at the School of Cognitive and Computing Sciences of the University of Sussex, May 14th, 2002.
      10. Dean LeBaron's Archive of Daily Video Commentary, Ongoing Since February 1998

       


    2. Webcast Announcements Next Article Bookmark and Share

      1. Artificial Worlds, Camden, ME, 02/10/18-20
      2. Dynamical Neuroscience X: From Experiments and Models to Brain Theory, Orlando, Florida, 02/11/01-02
      3. Managing Complex Organizations In A Complex World, NECSI, Boston, MA, 02/11/14-15
      4. American Association for Artificial Intelligence (AAAI) Fall Symposium on Chance Discovery: The Discovery and Management of Chance Events, North Falmouth, MA, USA, 02/11/15-17
      5. 4th Asia-Pacific Conference on Simulated Evolution And Learning (SEAL'02), 9th International Conference on Neural Information Processing (ICONIP'02), International Conference on Fuzzy Systems and Knowledge Discovery (FSKD'02), Singapore, 02/11/18-22
      6. Workshop on Modeling Complex Systems, University of Nevada, Reno, 02/11/20-21
        1. One-Day Course: Introduction to Complex Systems, Univ Nevada, Reno, 02/11/19
      7. Strengthening Your Capacity for Healthier Communities, PlexusInstitute, Los Angeles, 02/11/22-23
      8. International Conference on Systems, Development and Self-Organization (ICSDS'2002 ),Beijing, 02/11/30-12/01
      9. 23rd Army Science Conference (ASC): "Transformational Science & Technology for the Army....a race for speed and precision.", Orlando Fl, 02/12/02-05
      10. Managing the Complex IV, ISCE and FGCU, Fort Myers, FL, 02/12/07-10
      11. Artificial Life VIII, UNSW, Sydney, Australia, 02/12/09-13
        1. 1st Workshop on the Modelling of Dynamical Hierarchies in Alife (WDH 2002)
      12. UK Special Interest Group on Multi-Agent Systems (UKMAS-02), Liverpool, UK, 02/12/18-19
      13. One-Week Intensive Course: Complex Physical, Biological and Social Systems, NECSI, Cambridge, MA, 03/01
      14. Hawaii International Conference On System Sciences (HICSS-36), Big Island, Hawaii, 03/01/06-09
      15. INSC 2003, International Nonlinear Sciences Conference Research and Applications in the Life Sciences,Vienna, Austria, 03/02/07-09
      16. 21st ICDE World Conference on Open Learning and Distance Education, Hong Kong, 03/06/01-05
      17. 2003 Genetic and Evolutionary Computation Conference (GECCO-2003), Chicago, IL,03/07/12-16
      18. 2003 AAAI Spring Symposium Series, Computational Synthesis: From Basic Building Blocks To High Level Functionality, Stanford, 03/03/24-27
      19. Uncertainty and Surprise: Questions on Working with the Unexpected, U. of Texas at Austin, Texas, 03/04/10-12
      20. SPIE's First International Symposium on Fluctuations and Noise, Santa Fe, NM, 03/06/01-04
      21. Second International Joint Conference on Autonomous Agents and Multi-Agent Systems (AAMAS-2003), Melbourne, Australia, 03/07/14-18
      22. 2003 IEEE/WIC Intl Joint Conf. Web Intelligence and Intelligent Agent Technology, Beijing, China, 03/10/13-17
      23. On the Prospects of Chaos Aware Traffic Modeling, A. Fekete, M. Marodi, G. Vattay, arXiv

    3. Conference Announcements Next Article Bookmark and Share

      1. Complicated and Complex Systems: What Would Successful National Health Care Reform Look Like?, PlexusCalls, 02/10/25, 1 - 2 pm EST
      2. Are Disease and Aging Information/Complexity Loss Syndromes?, PlexusCalls, 02/11/08, 1 - 2 pm EST
      3. The Complexity of Entrepreneurship: A Launchcyte Story, PlexusCalls, 02/11/22, 1 - 2 pm EST

      1. Public Conference  Calls Next Article Bookmark and Share

        Complexity: Art and Complex Systems, SUNY, New Paltz, 02/09/14-11/24, COMPLEXITY is the second major museum exhibition about complex systems. It creates bridges across many branches of science and also offers a revolutionary intellectual vector that has ramifications for other disciplines such as art and philosophy.

         


    4. Complexity: Art and Complex Systems, Art Exhibit Next Article Bookmark and Share

      Excerpts: Dynamic modeling is a process of scientific thinking and extending our knowledge, aided by a machine. It allows one to FORMULATE AND REVISE SCIENTIFIC hypotheses and theories USING LOGIC AND EVIDENCE. (...) Professor Bruce Hannon--has taught dynamic modeling on the UIUC campus each year since 1985 and has authored three books on the subject.

    5. Dynamic Modeling,, Course Announcement Bookmark and Share

      The Complex Systems Network of Excellence, "Exystence", is funded by the European Commission to develop collaboration among European researchers interested in Complex Systems, from fundamental concepts to applications, and involving academia, business and industry.


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