Complexity Digest 2003.34

25-Aug-2003

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Content

  1. Set of Rules Too Complex to Be Followed Properly, NYTimes
  2. Learning Curve: A Simulation-Based Approach to Dynamic Pricing, Electronic Comm. Res.
  3. Autonomous Mapping Of E-Business Demands Via Invisible Internet Agents, Electronic Comm. Res.
  4. Self-organising Behaviour in the Presence of Negative Externalities: A Conceptual Model of Commuter Choice, European Journal of Operational Research
    1. Genetic Algorithms and Fuzzy Control: A Practical Synergism for Industrial Applications, Computers in Industry
  5. Cognitive Machines - Machines Accurately Infer User Intent, Remember Experiences, ScienceDaily
    1. Computer Model Forecasts Crime Sprees, New Scientist
  6. Language Evolution: Consensus And Controversies, Trends in Cognitive Sc.
    1. Evolving Grounded Communication For Robots, Trends in Cognitive Sc.
  7. A Twist on Artificial Intelligence: DNA, SunSpot.net
    1. Electronic Textiles Charge Ahead, Science
  8. Action Plans Used In Action Observation, Nature
    1. Brain Patterns The Same Whether Doing Or Just Watching, Queen's Researcher Discovers, ScienceDaily
  9. Discretizing Light Behaviour In Linear And Nonlinear Waveguide Lattices, NYTimes
    1. Photonic Structures In Biology, Nature
    2. Sea Sponge Inspires Better Fiber-Optic Cables, Scientific American
  10. Terahertz Imaging: T-Ray Specs, Nature
  11. Biological Vs. Social, Economic And Political Priority-Setting In Conservation, Ecol. Lett.
    1. Meta-Ecosystems: A Theoretical Framework For A Spatial Ecosystem Ecology, Ecol. Lett.
  12. The Power Of Time: Spatiotemporal Scaling Of Species Diversity, Ecol. Lett.
    1. Flowers' Sick Trick Gives Botanists Double Trouble, Nature
  13. Teaching Cells New Tricks, Trends in Biotech.
    1. How AIDS Destroys Immunity, EurekAlert
  14. Extending The Genetic Code, The Scientist
  15. Modifying the Message, Science
  16. Prediction Of Auditory Spatial Acuity From Neural Images, Nature
  17. Why Humans and Their Fur Parted Ways, NYTimes
  18. Climate Change, Human Impacts, and the Resilience of Coral Reefs, Science
    1. Drought Portends Mosquito Misery, Science
  19. Complex Challenges: Global Terrorist Networks
    1. War Zone Between The Forces Of Terror And The Occupying Forces, Al-Hayat
    2. Decoding Terror, ScienCentral News
    3. Ashcroft Criticized for Talks on Terror, NYTimes
  20. Links & Snippets
    1. Other Papers
    2. Webcast Announcements
    3. Conference & Call for Papers Announcements
    4. ComDig Announcement: New ComDig Archive in Beta Test

  1. Set of Rules Too Complex to Be Followed Properly, NYTimes Next Article Bookmark and Share

    Excerpts: Many of those rules - how much power can move in a line, when systems need to be shut down in an emergency - were drawn up long before deregulation opened the sluice gates and enabled the present transfer of billions of watts of energy around the country daily in wholesale transactions across hundreds or thousands of miles. As detailed as those rules are, according to many people in the industry, they are no match for the overwhelming scale and complexity of the grid (...).

  2. Learning Curve: A Simulation-Based Approach to Dynamic Pricing, Electronic Comm. Res. Next Article Bookmark and Share

    Abstract: By employing dynamic pricing, sellers have the potential to increase their revenue by selling their goods at prices customized to the buyers' demand (...). As dynamic pricing becomes a necessary competitive maneuver, and as market mechanisms become more complex, there is a growing need for software agents to be used to automate the task of implementing instantaneous price changes. The following article presents the Learning Curve Simulator, a market simulator designed for analyzing agent pricing strategies in markets under finite time horizons and fluctuation buyer demand. (...) we demonstrate the strength of a simulation-based approach to understanding agent pricing strategies.

  3. Autonomous Mapping Of E-Business Demands Via Invisible Internet Agents, Electronic Comm. Res. Next Article Bookmark and Share

    Abstract: In business Internet-based systems demands and supplies can be hidden in different forms and locations. We develop a simple type of agents called knowledgeable objects for carrying and mapping heterogeneous and distributed business data in a self-processing way. Internet agents coordinate these invisible agent objects to implement a competitive mapping via agent bidding. The concept of agent awareness and invisibility is used for regulating agent interaction scope to decrease mapping time and to accord with system capacity. Our analysis shows that this combination of agent-interval-based techniques not only meets the distributed, heterogeneous, and dynamic tendencies of E-business systems (...).

  4. Self-organising Behaviour in the Presence of Negative Externalities: A Conceptual Model of Commuter Choice, European Journal of Operational Research Next Article Bookmark and Share

    Abstract: We use a model with local interaction (a one-dimensional cellular automaton) to study how commuters choose among alternative roads. Commuters have information about their neighbours' most recent experience (local interaction) and they remember their own experiences (memory). We illustrate how a simple, self-organizing system, based on local information and locally rational agents can in some cases outperform the Nash equilibrium. While the social optimum is unenforceable without a central planner, due to the variations in individual travel times (i.e. the social optimum is not individually rational), variations across commuters in the steady-state of our self-organising system are at least equivalent to, and mostly significantly larger than those required for the social equilibrium. Increasing the neighbourhood size illustrates that more information without co-ordination leads to worse overall performance.

    1. Genetic Algorithms and Fuzzy Control: A Practical Synergism for Industrial Applications, Computers in Industry Next Article Bookmark and Share

      Abstract: A way to automatically generate fuzzy controllers (FCs) that are optimized according to a merit figure is presented in this article. To achieve this task, a procedure based on hierarchical genetic algorithms (HGA) was developed. This procedure and the manner in which fuzzy controllers are codified into chromosomes is described. Resorting to this tool, several fuzzy controllers were constructed. The best three solutions obtained during simulation were selected for testing using an experimental prototype, which consists of an induction motor of variable load. These preliminary results are also included in the report. Based on these results, it is concluded that hierarchical genetic algorithms, though not the only, is a suitable artificial intelligence technique to face the problem of setting a fuzzy controller in a control loop without previous experience in controlling the plant. This is of help in many situations at industrial environments.

  5. Cognitive Machines - Machines Accurately Infer User Intent, Remember Experiences, ScienceDaily Next Article Bookmark and Share

    Excerpts: A new type of "smart" machine that could fundamentally change how people interact with computers is on the not-too-distant (...) cognitive machines that accurately infer user intent, remember experiences with users and allow users to call upon simulated experts to help them analyze situations and make decisions. "In the long term, the benefits from this effort are expected to include augmenting human effectiveness and embedding these cognitive models into systems like robots and vehicles for better human-hardware interactions. We expect to be able to model, simulate and analyze humans and societies of humans for Department of Energy, military and national security applications."

    1. Computer Model Forecasts Crime Sprees, New Scientist Next Article Bookmark and Share

      Excerpts: Computer forecasts that predict where and when crimes will happen by analysing past patterns should help police channel resources where they are needed most. The technique, now under trial in the US, could be available for routine use within a year. Police "crime maps" that identify areas prone to illegal activity are commonplace. But a more powerful tool for forecasting crime is emerging from a huge electronic database of six million crimes recorded over the past 10 years in Pittsburgh, Pennsylvania, and Rochester, New York.

  6. Language Evolution: Consensus And Controversies, Trends in Cognitive Sc. Next Article Bookmark and Share

    Abstract: Why is language the way it is? How did language come to be this way? And why is our species alone in having complex language? This review provides a broad overview of some of the important current work in this area. We highlight new methodologies (such as computational modeling), emerging points of consensus (such as the importance of pre-adaptation), and the major remaining controversies (such as gestural origins of language). We also discuss why language evolution is such a difficult problem, and suggest probable directions research may take in the near future.

    1. Evolving Grounded Communication For Robots, Trends in Cognitive Sc. Next Article Bookmark and Share

      Abstract: The computational and robotic synthesis of language evolution is emerging as a new exciting field of research. The objective is to come up with precise operational models of how communities of agents, equipped with a cognitive apparatus, a sensori-motor system, and a body, can arrive at shared grounded communication systems. Such systems may have similar characteristics to animal communication or human language. Apart from its technological interest in building novel applications in the domain of human-robot or robot-robot interaction, this research is of interest to the many disciplines concerned with the origins and evolution of language and communication.

  7. A Twist on Artificial Intelligence: DNA, SunSpot.net Next Article Bookmark and Share

    Excerpts: Milan Stojanovic has a new tic-tac-toe adversary in his Columbia University laboratory, and after a hundred matches he has yet to beat it. "There's no way," he sighs. Who is this tic-tac titan? A computer, of course. Only here's the twist: its brain is based not on silicon microchips but on molecules of DNA.(...) One of Stojanovic's underwriters is NASA. The space agency, he says, wants to develop molecule-sized biocomputers capable of diagnosing and perhaps even repairing disease at the cellular level - perfect for astronauts on long spaceflights and something silicon devices could never do.

    1. Electronic Textiles Charge Ahead, Science Next Article Bookmark and Share

      Excerpts: Clothes may soon change color on command, give you a checkup, and communicate by Wi-Fi, (...). (...) a growing cadre of computer, electronics, and textile researchers are poised to revolutionize the fashion world, and perhaps at the same time the fields of communication, medicine, advertising, and even warfare. The rumpled-shirt crowd is looking to give the decidedly low-tech world of textiles a good dressing up, electrifying everything from jackets and T-shirts to advertising displays and carpets with electronic sensors, processing chips, and displays.

  8. Action Plans Used In Action Observation, Nature Next Article Bookmark and Share

    Excerpts: How do we understand the actions of others? (...). Because the eyes are free to move when observing such actions, the direct matching hypothesis predicts that subjects should produce eye movements similar to those produced when they perform the tasks.(...) Here we show that when subjects observe a block stacking task, the coordination between their gaze and the actor's hand is predictive, rather than reactive, and is highly similar to the gaze-hand coordination when they perform the task themselves.

    1. Brain Patterns The Same Whether Doing Or Just Watching, Queen's Researcher Discovers, ScienceDaily Next Article Bookmark and Share

      Excerpts: New findings from a Queen's behavioural expert in eye/hand movement provide the first direct evidence that our brain patterns are similar whether we are actually doing something or simply watching someone else do it.It's an insight that could have significant implications for the assessment of people with various movement disorders such as some stroke victims, says (...). "We perceive an action by running it at some covert level in our own system. An example would be when sports fans watch football on TV and move in anticipation of action on the screen."

  9. Discretizing Light Behaviour In Linear And Nonlinear Waveguide Lattices, NYTimes Next Article Bookmark and Share

    Excerpts: Light propagating in linear and nonlinear waveguide lattices exhibits behaviour characteristic of that encountered in discrete systems. (...) opens up new possibilities for controlling the flow of light that would have been otherwise impossible in the bulk: these effects can be exploited to achieve diffraction-free propagation and minimize the power requirements for nonlinear processes. In two-dimensional networks of waveguides, self-localized states-or discrete solitons-can travel along 'wire-like' paths and can be routed to any destination port. Such possibilities may be useful for photonic switching architectures.

    1. Photonic Structures In Biology, Nature Next Article Bookmark and Share

      Excerpts: Millions of years before we began to manipulate the flow of light using synthetic structures, biological systems were using nanometre-scale architectures to produce striking optical effects. An astonishing variety of natural photonic structures exists: a species of Brittlestar uses photonic elements composed of calcite to collect light, Morpho butterflies use multiple layers of cuticle and air to produce their striking blue colour and some insects use arrays of elements, known as nipple arrays, to reduce reflectivity in their compound eyes. Natural photonic structures are providing inspiration for technological applications.

    2. Sea Sponge Inspires Better Fiber-Optic Cables, Scientific American Next Article Bookmark and Share

      Excerpt: Technologically speaking, the latest fiber-optic cables have nothing on a small deep-sea sponge. Scientists report today in the journal Nature that the so-called glass sponge Euplectella contains outgrowths are similar in structure to fiber-optic cables but much less likely to break.

  10. Terahertz Imaging: T-Ray Specs, Nature Next Article Bookmark and Share

    Excerpts: Radiation from a previously unexploited region of the electromagnetic spectrum could hold the key to a new generation of security devices. (...) Such is the potential power of a new imaging technology. Terahertz devices, so named because they detect electromagnetic radiation in the terahertz frequency range (1 THz is 1012 Hz), promise to peer through clothing, revealing concealed weapons and explosives. The technique could also be used to seek out structural defects in materials, to detect skin cancer or to provide new information about astronomical objects.

  11. Biological Vs. Social, Economic And Political Priority-Setting In Conservation, Ecol. Lett. Next Article Bookmark and Share

    Abstract: The most influential conservation priority-setting approaches emphasize biodiversity and threats when deciding where to focus investment. However, socio-economic and political attributes of nations influence the effectiveness of conservation actions. (...) only a few countries emerged as high priorities irrespective of which factors were included in the analysis. Conversely, some countries that ranked highly as priorities for conservation when focusing solely on biological metrics, did not rank highly when governance, population pressure, economic costs and conservation needs were considered. However, the analyses suggest that attention to governance and return on investment may alter biocentric assessments of ideal conservation investments.

    1. Meta-Ecosystems: A Theoretical Framework For A Spatial Ecosystem Ecology, Ecol. Lett. Next Article Bookmark and Share

      Abstract: This contribution proposes the meta-ecosystem concept as a natural extension of the metapopulation and metacommunity concepts. A meta-ecosystem is defined as a set of ecosystems connected by spatial flows of energy, materials and organisms across ecosystem boundaries. This concept provides a powerful theoretical tool to understand the emergent properties (...) thereby has the potential to integrate the perspectives of community and landscape ecology, to provide novel fundamental insights into the dynamics and functioning of ecosystems from local to global scales, and to increase our ability to predict the consequences of land-use changes on biodiversity and the provision of ecosystem services to human societies.

  12. The Power Of Time: Spatiotemporal Scaling Of Species Diversity, Ecol. Lett. Next Article Bookmark and Share

    Abstract: The species-area relationship (SAR) provides the foundation for much of theoretical ecology and conservation practice. However, by ignoring time the SAR offers an incomplete model for biodiversity dynamics. We used long-term data from permanent plots in Kansas grasslands, USA, to show that the increase in the number of species found with increasing periods of observation takes the same power-law form as the SAR. A statistical model including time, area, (...) and demonstrates that while the effect of time depends on area, and vice versa, time has strong effects on species number even at relatively broad spatial scales.

    1. Flowers' Sick Trick Gives Botanists Double Trouble, Nature Next Article Bookmark and Share

      Excerpts: Sickly plants have fooled botanists into incorporating the symptoms of their ailments into species descriptions, researchers say. The discovery raises the prospect that some plants currently classified as separate species are really just unhealthy samples of other groups. (...) Bogus species names often arise when a researcher redescribes something that has already been named,(...). The International Plant Names Index contains more than one million entries, but researchers think that there are really only between 200,000 and 400,000 species of flowering plant.

  13. Teaching Cells New Tricks, Trends in Biotech. Next Article Bookmark and Share

    Abstract: The direct conversion of one differentiated cell type into another - a process referred to as transdifferentiation - would be beneficial for producing isogenic (patient's own) cells to replace sick or damaged cells or tissue. Adult stem cells display a broader differentiation potential than anticipated and might contribute to tissues other than those in which they reside. As such, they could be worthy therapeutic agents. To avoid unpredictable tissue transformation, nuclear reprogramming requires controlled and heritable epigenetic modifications. Considerable efforts remain to unravel the molecular processes underlying nuclear reprogramming and evaluate stable of the changes in reprogrammed cells.
    • Source: Teaching Cells New Tricks, P. Collas - philippe.collasabasalmed.uio.no & a. m. håkelien, DOI: 10.1016/S0893-6080(03)00147-1, Aug. 2003
    • Contributed by Atin Das - dasatinayahoo.co.in

    1. How AIDS Destroys Immunity, EurekAlert Next Article Bookmark and Share

      Excerpts: A human gene named ATR normally protects people by preventing the replication of cells damaged by radiation or toxic chemicals. Now, Utah and New York researchers have discovered how a gene in the AIDS virus hijacks the human gene and turns it into a weapon that prevents reproduction of immune-system white blood cells, leaving AIDS patients vulnerable to deadly infections and cancer.(...) The ATR gene's normal job is to detect genetic damage to cells caused by radiation, toxic chemicals and chemotherapy, and to stop the damaged cells from replicating until they can repair themselves. Planelles and researchers at the University of Rochester, N.Y., found evidence that the vpr gene - one of nine genes in the AIDS virus - exploits this normal repair process to stop vital white blood cells from replicating, thus disabling the immune system.

  14. Extending The Genetic Code, The Scientist Next Article Bookmark and Share

    Excerpts: (...) Chin et al. independently incorporated five novel amino acids into the genetic code of S. cerevisiae, for example, creating a strain that incorporated an amino acid with a "benzophenone" side chain, useful as a photocrosslinker, into any mRNA that contained the amber suppressor codon. "This methodology not only removes the constraints imposed by the genetic code on our ability to manipulate protein structure and function in yeast, it provides a gateway to the systematic expansion of the genetic codes of multicellular eukaryotes," conclude the authors.

  15. Modifying the Message, Science Next Article Bookmark and Share

    Excerpts: One of the pioneering discoveries in genetic research was that variation at one gene could modify the phenotypic expression of variants at another gene. We know now that phenotype modification is the rule rather than the exception and that genetic background strongly influences the expression of most genetic variants. (? complex webs of interactions allow organisms to survive in the face of genetic and environmental stresses. The challenge now is to understand these networks in molecular detail. Key to this is identifying modifier genes and determining how they act(?.

  16. Prediction Of Auditory Spatial Acuity From Neural Images, Nature Next Article Bookmark and Share

    Excerpts: The owl can discriminate changes in the location of sound sources as small as 3° and can aim its head to within 2° of a source. A typical neuron (...) has a spatial receptive field that spans 40°(...). (...) examined the relationship between neuronal activity and perceptual acuity in the auditory space map in the barn owl midbrain. By analysing changes in firing rate resulting from small changes of stimulus azimuth, we show that most neurons can reliably signal changes in source location that are smaller than the behavioural threshold.

  17. Why Humans and Their Fur Parted Ways, NYTimes Next Article Bookmark and Share

    Excerpts: One of the most distinctive evolutionary changes as humans parted company from their fellow apes was their loss of body hair. But why and when human body hair disappeared, together with the matter of when people first started to wear clothes, are questions that have long lain beyond the reach of archaeology and paleontology. (...) The result, if the dates are accurate, is something of an embarrassment. It implies we were naked for more than a million years before we started wearing clothes.

  18. Climate Change, Human Impacts, and the Resilience of Coral Reefs, Science Next Article Bookmark and Share

    Excerpts: The diversity, frequency, and scale of human impacts on coral reefs are increasing to the extent that reefs are threatened globally. Projected increases in carbon dioxide and temperature over the next 50 years exceed the conditions under which coral reefs have flourished over the past half-million years. However, reefs will change rather than disappear entirely, with some species already showing far greater tolerance to climate change and coral bleaching than others. International integration of management strategies that support reef resilience need to be vigorously implemented, (...)
    • Source: Climate Change, Human Impacts, and the Resilience of Coral Reefs, T. P. Hughes, A. H. Baird, D. R. Bellwood, M. Card, S. R. Connolly, C. Folke, R. Grosberg, O. Hoegh-Guldberg, J. B. C. Jackson, J. Kleypas, J. M. Lough, P. Marshall, M. Nystr& - 38371;, S. R. Palumbi, J. M. Pandolfi, B. Rosen, J. Roughgarden, Science Aug 15 2003: 929-933

    1. Drought Portends Mosquito Misery, Science Next Article Bookmark and Share

      Excerpts: A rainy year means more mosquitoes, right? (...) The research found that because dry weather knocks out key mosquito predators and competitors, last year's drought--not this year's rainfall--may best predict mosquito outbreaks in wetlands. (...) But in ponds that were usually full but dried out after a drought in 1999, mosquito larvae burgeoned the next year, Chase reported. The reason, he and Knight suspect, is that the drought killed both predators and competitors, which in these ponds aren't adapted to dry spells.

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

    1. War Zone Between The Forces Of Terror And The Occupying Forces, Al-Hayat Next Article Bookmark and Share

      Excerpts: This competition between the ideals of destruction and pre-emptiveness has some commonalities; one of which is that those of both ideals want chaos as the basis for their ends. The sort of unruly chaos that leads to disintegration and crumbling of the ability to think, in order for societies in the midst of chaos to fall in a terrible spiral. It is the chaos of exhaustion. The issue is no longer theoretical or hypothetical because this chaos' scene is the Arab societies.

    2. Decoding Terror, ScienCentral News Next Article Bookmark and Share

      Excerpts: Are terrorists and other law-breakers getting better at making codes than we are at breaking them? The electronic intelligence experts at the federal government's National Security Agency (NSA) are trying to prevent that from happening. But increasingly, the international emails, phone calls, and faxes that the NSA screens are encrypted, or scrambled by complex mathematical formulas. (...) So, who is winning this "code war"? "The advantage is always going to be in favor of the code-makers,(...)

    3. Ashcroft Criticized for Talks on Terror, NYTimes Next Article Bookmark and Share

      Excerpts: Mr. Conyers said that the speeches in defense of the USA Patriot Act, as the antiterrorism law is known, appeared to conflict with Congressional restrictions preventing the use of Justice Department money for "publicity or propaganda purposes not authorized by Congress." He said they might also violate the Anti-Lobbying Act and its restrictions on grass-roots lobbying on legislative matters.

  20. Links & Snippets Next Article Bookmark and Share

    1. Other Papers Next Article Bookmark and Share

      1. Extending the Upper Temperature Limit for Life, Kazem Kashefi, Derek R. Lovley, Science Aug 15 2003: 934.
      2. A Quantum Laser Pointer, Nicolas Treps, Nicolai Grosse, Warwick P. Bowen, Claude Fabre, Hans-A. Bachor, Ping Koy Lam, Science Aug 15 2003: 940-943
      3. Photonic Crystal Fibres, Jonathan C. Knight, 14 August 2003, Nature 424, 847 - 851 , DOI: 10.1038/nature01940
      4. Chinese Fusion Method Promises Fresh Route To Human Stem Cells , Biologists in China have reprogrammed human cells by fusing them with rabbit eggs emptied of their genetic material. And they have extracted stem cells, which have the potential to form a wide array of different cell types, from the resulting embryos. Carina Dennis, 14 August 2003, Nature 424, 711 , DOI: 10.1038/424711a
      5. Welcome to the Anthropocene, The sizzling, soaraway summer mustn't get in the way of European climate scientists' objectivity., 14 August 2003, Nature 424, 712
      6. Neurobiology: New Player In Pain, Long-term pain must be accompanied by long-term alterations in neuronal signalling - but what causes the changes? In rats, immune-like spinal cells are implicated, together with a molecule new to the field of pain. Edwin W. Mccleskey, 14 August 2003, Nature 424, 729 - 730, DOI: 10.1038/424729a
      7. Immunology: Another Toll Road , The immune response to microbes involves a well-known signalling cascade - but this doesn't control all aspects of anti-pathogen warfare. A second cascade, involving a new 'adaptor' protein, helps fill the gap. Wen-Chen Yeh And Nien-Jung Chen, 14 August 2003, Nature 424, 736 - 737 , DOI: 10.1038/424736a
      8. Internet Auction Sellers: Does Size Really Matter?, D. Halstead & R. C. Becherer, 2003, DOI: 10.1108/10662240310478204
      9. Boolean Dynamics of Networks with Scale-free Topology, Maximino Aldana, 2003-08-07, Physica D: Nonlinear Phenomena Article in Press, Corrected Proof, DOI: 10.1016/S0167-2789(03)00174-X
      10. Thinking The Unthinkable: Sacred Values And Taboo Cognitions, P. E. Tetlock - tetlockahaas.berkeley.edu, 2003/06/27, DOI: 10.1016/S1364-6613(03)00135-9
      11. Good Smells And Bright Light Are Good "Medicine" For People With Dementia, J. Semancik - jsemancikapcipr.com, 2003/08/18
      12. Magnetic Orientation In Birds: Non-Compass Responses Under Monochromatic Light Of Increased Intensity, R. Wiltschko, 2003/08/18
      13. Kin Selection May Influence Fostering Behaviour In Antarctic Fur Seals (Artocephalus Gazella), N. J. Gemmell, 2003/08/18
      14. Major Histocompatibility Complex And Mate Choice In Sand Lizards, M. Olsson, T. Madsen, J. Nordby, E. Wapstra, B. Ujvari & H. Wittsell, 2003/08/18
      15. Sexual Selection And Individual Genetic Diversity In A Songbird, R. C. Marshall, K. L. Buchanan & C. K. Catchpole, 2003/08/18
      16. "Quantum Freeze" Rescues World's Fastest Computers, D. Reid - david.reidaiop.org, 2003/08/18
      17. Speakers, Musicians Both Change Their Tempo To More Closely Match Others, Study Finds, 2003/08/19, ScienceDaily & Ohio State Univ.
      18. Duke Ecologist Finds Devastation, Hope In Iraqi Marshes, 2003/08/19, ScienceDaily & Duke Univ.
      19. What Can Spores Do For Us?, W. A. M. Wolken - woutwolkenahotmail.com & j. tramper & m. j. werf, Aug. 2003
      20. Chaos-Based Digital Communication Systems, F.C.M. Lau & C.K. Tse, Aug. 2003
      21. The Covariance Structure Of Earnings In Great Britain, 1991-1999, Ramos X, May 2003, DOI: 10.1111/1468-0335.00328

    2. Webcast Announcements Next Article Bookmark and Share

      1. UPCOMING WEBCAST: Fair Value; The Good, The Bad, and The Unknown, Financial Executives International (FEI), 03/06/26, 5:00-6:00 p.m. GMT
      2. 13th Ann Intl Conf, Soc f Chaos Theory in Psych & Life Sciences, Boston, MA, USA, 2003/08/08-10
      3. IMA International Conference Bifurcation 2003, Univ. Southampton, UK, 27-30 July, 2003
      4. New Santa Fe Institute President About His Vision for SFI's Future Role, (Video, Santa Fe, NM, 03/06/04)
      5. Edge Videos
      6. World Economic Forum Extraordinary Annual Meeting, Jordan, 03/06/21-23
      7. SPIE's 1st Intl Symp on Fluctuations and Noise, Santa Fe, NM, 2003/06/01-04
      8. NAS Sackler Colloquium on Mapping Knowledge Domains, Video/Audio Report, 03/05/11
      9. Uncertainty and Surprise: Questions on Working with the Unexpected and Unknowable, The University of Texas Austin, Texas USA, 2003/04/10-12
      10. New Trends In Industrial Partnership And Innovation Management At European Research Laboratories, CERN, Geneva, 2003/03/19 (with webcast)
        1. CERN Webcast Service, Streamed videos of Archived Lectures and Live Events
      11. Dean LeBaron's Archive of Daily Video Commentary, Ongoing Since February 1998

         


    3. Conference & Call for Papers Announcements Next Article Bookmark and Share

      1. Thematic Institute "Networks and Risks", Budapest, Hungary, 03/08/25 - 09/27
      2. Conference on Growing Networks and Graphs in Statistical Physics, Finance, Biology and Social Systems, Rome, 03/09/01-05
      3. Protecting the Homeland: The Need for a Public/Private Partnership, Washington, DC, 03/09/04-05
      4. Call for Papers on Dynamical Hierarchies, Special Issue of Artificial Life, Deadline: 2003/09/05
      5. Executive Leadership in a Changing Environment, Washington, DC, 03/09/07-12, 03/10/05-10
      6. 7th European Conference on Artificial Life (ECAL-2003), Dortmund, Germany, 2003/09/14-17
      7. A Dual International Conference on Ethics, Complexity & Organisations & Creativity, London, UK, 2003/09/17-18
      8. Innovative Clusters- A New Challenge, Competitive Institute 6th Global Conference, Gothenburg, Sweden, 03/09/17-19
      9. 1st German Conference on Multiagent System Technologies (MATES'03), Erfurt, Germany, 2003/09/22-25
      10. Dynamics Days 2003, XXIII Annual Conference, 4 Decades of Chaos 1963-2003, Palma de Mallorca, Spain, 03/09/24-27
      11. Improving The NHS Through The Lens Of Complexity, U Exeter, UK, 03/09/24-26
      12. Emerging Technologies Conference at MIT, Cambridge, MA, 2003/09/24-25
      13. Exystence Thematic Institute - Algorithms And Challenges In Hard Combinatorial Problems, Turin, Italy, 03/10/01-30
      14. Intl School Mathematical Aspects of Quantum Chaos II Quantum Chaos on Hyperbolic Manifolds, Schloss Reisensburg (Günzburg, Germany), 03/10/04-11
      15. European Workshop on The Analysis of Microfabrics in Geomaterials, München, Germany, 03/10/06-11
      16. 2003 IEEE/WIC Intl Joint Conf. Web Intelligence and Intelligent Agent Technology, Halifax, Canada, 2003/10/13-17
        1. Workshop on Collaboration Agents: Autonomous Agents for Collaborative Environments, Halifax, Canada, 03/10/13
      17. American Society for Cybernetics (ASC) 2003 Conference (H.v.Foerster), Vienna, Austria, 2003/11/10-15
      18. Trends And Perspectives In Extensive And Non-Extensive Statistical Mechanics, In Honour Of The 60th Birthday Of Constantino Tsallis, Angra Dos Reis, Brazil, 2003/11/19-21
      19. ICDM '03: The Third IEEE International Conference on Data Mining, Melbourne, Florida, USA, 2003/11/19-22
      20. 4th Intl Conf on Systems Science and Systems Engineering, Hong Kong, 03/11/25-28
      21. 3rd International Workshop on Meta-Synthesis and Complex System, Guangzhou, China, 2003/11/29-30
      22. 2nd International Workshop on the Mathematics and Algorithms of Social Insects, Georgia Tech, Atlanta, Georgia, USA; 2003/12/15-17
      23. 2nd Biennial Seminar on the Philosophical, Epistemological, and Methodological Implications of Complexity Theory, Havana, Cuba, 04/01/07-10
      24. 1st International Workshop on Biologically Inspired Approaches to Advanced Information Technology, Lausanne, Switzerland, 04/01/29-30
      25. 4th Intl ICSC Symposium Engineering Of Intelligent Systems (EIS 2004), Island of Madeira, Portugal, 04/02/29-03/02
      26. Fractal 2004, "Complexity and Fractals in Nature", 8th Intl Multidisciplinary Conf, Vancouver, Canada, 2004/04/04-07
      27. Urban Vulnerability and Network Failure: Constructions and Experiences of Emergencies, Crises and Collapse, Manchester, UK, 04/04/29-30
      28. Fifth International Conference on Complex Systems (ICCS2004), Boston, MA, USA, 2004/05/16-21
      29. 3rd Intl Conf on Systems Thinking in Management (ICSTM 2004) "Transforming Organizations to Achieve Sustainable Success", Philadelphia, Pennsylvania, USA, 04/05/19-21
      30. 13th International Symposium on HIV & Emerging Infectious Diseases, Toulon, France, 04/06/03-05
      31. From Animals To Animats 8, 8th Intl Conf On The Simulation Of Adaptive Behavior (SAB'04), Los Angeles, USA, 04/07/13-17

       


    4. ComDig Announcement: New ComDig Archive in Beta Test Bookmark and Share

      We are in the process of upgrading the Complexity Digest archives to a format with improved search capabilities. Also, we will finally be able to adequately publish the valuable feedback and comments from our knowledgable readers. You are cordially invited to become a beta tester of our new ComDig2 archive.

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