Complexity Digest 2003.41

13-Oct-2003

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Content

  1. Two Professors, Collaborators in Econometrics, Win the Nobel, NYTimes
    1. Super-Cool Theories Secure Physics Prize, Nature Science Update
    2. Channel Champions Win Chemistry Nobel, Nature Science Update
    3. Magnetic Imaging Scoops Medical Nobel, Nature Science Update
  2. Harvard Heralds Fresh Take On Systems Biology, Nature
    1. Developmental Biology: Twisting The Body Into Shape, Nature
    2. Developmental Biology: Partners United, Nature
  3. Playable Games As Metaphors For Complex Biosystems: Team Connect Four, Complexity
  4. Buddhism And Neuroscience: Studying the Well-Trained Mind, Science
    1. Brain Scan Shows Rejection Pain, BBC News
    2. Neurobiology: Backchat At The Synapse, Nature
  5. Do You Know Who Your Experts Are?, McKinsey Quarterly
  6. Spam Fighters Turn to Identifying Legitimate E-Mail, NYTimes
  7. Scaling, Correlations, And Cascades In Finance And Turbulence, Physica A
    1. Do Stock Price Indices Respond Asymmetrically? Evidence From China, Japan, And South Korea, J. Asian Econ.
  8. Cognitive And Institutional Perspectives Of Eco-Efficiency, Ecol. Econ.
  9. Evolution Of Complex Life Cycles In Helminth Parasites
  10. Involving The Motor System In Decision Making, Alphagalileo & Biol. Lett.
    1. Speed Vs. Accuracy In Collective Decision Making, Alphagalileo & Proc. Biol. Sc.
  11. Bacterial Insecticides, The Scientist
  12. Nonlinear Modeling And Adaptive Monitoring In Biological Wastewater Treatment Plants, J. Biotech.
  13. Lasers Operate Inside Single Cells, NYTimes
  14. Cell Biology: The Hippo Hypothesis, Nature
  15. Photosynthesis Puzzle Solved, BBC News
  16. How to Assemble a Molecular Junction, Science
    1. Self-Assembly of Proteins into Designed Networks, Science
  17. Magnetic Logic Devices Move Closer, Physics Web
  18. TV Review:'Truth, War And Consequences', Selective Intelligence on Road to Baghdad, NYTimes
    1. Truth, War and Consequences, PBS
  19. Complex Challenges: Global Terrorist Networks
    1. The Real Patriot Act, NYTimes
    2. U.S. Surplus Sales Include Biological Weapons Gear, Reuters
    3. Whistling In The Dark, TomPaine.com
    4. Red Cross Criticizes Indefinite Detention in Guantamo Bay, NYTimes
    5. A Sense of Betrayal, abcNEWS.com
  20. Links & Snippets
    1. Other Publications
    2. Webcast Announcements
    3. Conference & Call for Papers Announcements
    4. ComDig Announcement: New ComDig Archive in Beta Test
    5. Special Announcement: Artists Explore Complex Systems, Federal Reserve Board

  1. Two Professors, Collaborators in Econometrics, Win the Nobel, NYTimes Next Article Bookmark and Share

    Excerpts: (...) Nobel Memorial Prize in Economic Science for developing statistical methods that allow researchers, policy makers and Wall Street traders to better analyze stock prices and other long-running series of data. (...) Their research has enabled others to study the relationship between variables, like personal wealth and consumer spending, in ways not possible before. A more sophisticated understanding of those relationships - what is cause and what is effect, for instance - has led to a richer understanding of how the economy works and better forecasts, economists said.

    1. Super-Cool Theories Secure Physics Prize, Nature Science Update Next Article Bookmark and Share

      Excerpts: Three physicists who have wrestled with the explanations behind intriguing quantum phenomena share this year's Nobel Prize in Physics. Two Russians, Alexei Abrikosov of the Argonne National Laboratory in Illinois and Vitaly Ginzburg, the retired head of the theory group at the P. N. Lebedev Physical Institute in Moscow, are rewarded for their theoretical explanation of a form of superconductivity. Anthony Leggett of the University of Illinois at Urbana-Champaign is recognized for his work on a type of superfluid.

    2. Channel Champions Win Chemistry Nobel, Nature Science Update Next Article Bookmark and Share

      Excerpts: When he went on to describe how such channels open, close and prevent other ions from entering, many colleagues felt that MacKinnon had earned a Nobel. (...) Biologists from the 1800s onwards knew that cells must have some way of absorbing water and flushing it out. In 1988, Agre identified a protein that he suspected of doing the job2. A few years later he showed that the molecule, now called aquaporin-1, forms a pore in the membrane that lets through water, but not other substances.

    3. Magnetic Imaging Scoops Medical Nobel, Nature Science Update Next Article Bookmark and Share

      Excerpts: (...) Lauterbur came up with the idea of using a graded magnetic field that increased in strength from one side of an object to the other to create a two-dimensional image of the object's internal structure. This is based on the idea that nuclei absorb and emit radio waves at different frequencies, depending on the strength of the magnetic field in which they are held. In a seminal paper, Lauterbur produced crude images of two glass capillaries filled with water.

  2. Harvard Heralds Fresh Take On Systems Biology, Nature Next Article Bookmark and Share

    Excerpts: The new department says it will cooperate closely with Harvard's Bauer Center for Genomics Research, set up just last year with its own mission of bringing expertise from mathematics and the physical sciences to bear on biological problems. Other systems-biology researchers say the challenge for the department will be to create career incentives for people who will be working without the boundaries of traditional disciplines. The systems-biology approach involves large teams of people, and it will be difficult to determine how best to make decisions (...).

    1. Developmental Biology: Twisting The Body Into Shape, Nature Next Article Bookmark and Share

      Excerpts: Molecular signals are not the only forces that pattern and shape the developing embryo. Mechanical stresses sensed by cells also seem to be involved in creating the body plan. Embryogenesis -(...) - is one of nature's wonders. As cells increase in number, they engage in a series of complex movements that substantially alter their relative positions in the embryo. Patterning information that specifies anterior-posterior (head to tail) and dorsal-ventral (back to front) orientation is superimposed on this cellular framework, leading to the development of the early body plan.

    2. Developmental Biology: Partners United, Nature Next Article Bookmark and Share

      Excerpts: (...) experiments that unite a pair of hitherto enigmatic signalling proteins - a secreted protein, Jeb, and a cell-surface-located receptor, Alk. By showing that Jeb binds to and activates Alk, these papers provide new insight into development, and also illustrate the relationship between development and cancer: developmental signals are potent regulators of cell behaviour, and so can have disastrous effects if uncontrolled. (...) unregulated activity of the anaplastic lymphoma kinase (Alk) protein was discovered to be the cause of a cancer known as anaplastic large-cell lymphoma.

  3. Playable Games As Metaphors For Complex Biosystems: Team Connect Four, Complexity Next Article Bookmark and Share

    Abstract: In an effort to better understand complex biological systems, the game Connect Four is generalized to be a stochastic contest between two teams. Members of each team typically possess sensors that provide some information on the nearby deployment of the pieces. Sensing something interesting increases the probability that a given team member will move. Simulations show the relative strengths of various sensor weightings and thereby cast some light on the use of sensors in more general complex autonomous systems.

  4. Buddhism And Neuroscience: Studying the Well-Trained Mind, Science Next Article Bookmark and Share

    Excerpts: Davidson and his colleagues have demonstrated repeatedly that activity in the frontal region of the brain reflects a person's emotional state. A high ratio of activity in the left versus the right frontal areas marks either a fleeting positive mood or what Davidson calls a positive "affective style," which is the quality of mood that persists over time. (...) Their first subject, while not meditating, showed a left-right brain activity ratio higher than that of any of the 150 non-Buddhist subjects the team had previously tested.

    1. Brain Scan Shows Rejection Pain, BBC News Next Article Bookmark and Share

      Excerpts: Being snubbed socially provokes exactly the same brain response as being physically hurt, say US researchers. Dr Jaak Panksepp, from the Centre for Neuroscience, Mind and Behavior at Bowling Green State University in Ohio, said that feelings of social exclusion were powerful instincts in animals and humans. He said: "The feelings induced by experimental games in the laboratory, are a pale shadow of the real-life feelings that humans and other animals experience in response to the sudden loss of social support. "Psychological pain in humans, especially grief and intense loneliness, may share some of the same neural pathways that elaborate physical pain. "Given the dependence of mammalian young on their caregivers, it is hard not to comprehend the strong survival value conferred by common neural pathways that elaborate both social attachment and the affective qualities of physical pain."

    2. Neurobiology: Backchat At The Synapse, Nature Next Article Bookmark and Share

      Excerpts: Studies of how muscles in turn influence neurotransmitter release hint at how synapses adapt to changes in use.

      Synapses - (...)- are dynamic structures that can grow, shrink and change their properties according to their firing history. Crosstalk between the 'presynaptic' neuron (which releases neurotransmitter molecules when stimulated) and its 'postsynaptic' target (which responds to the neurotransmitters) is crucial for the formation, maturation and refinement of synapses. (...) Here, a well-known class of signalling proteins carries information backwards - from the postsynaptic to the presynaptic cell.

  5. Do You Know Who Your Experts Are?, McKinsey Quarterly Next Article Bookmark and Share

    Excerpts: Expertise can be surprisingly difficult to find, even in companies that have spent millions of dollars to attract and retain it. Traditional methods, such as document repositories and static directories, are inadequate because expertise, unlike other assets, depends on the context-making it difficult to describe and classify. By mining the details of the current and past work experience of employees-what projects they have participated in, what papers they have written, what they studied in school-new expertise-location systems can often solve the context problem and help companies find the talent they already have within their ranks.

  6. Spam Fighters Turn to Identifying Legitimate E-Mail, NYTimes Next Article Bookmark and Share

    Excerpts: Put simply, these efforts are trying to develop the Internet equivalent of caller ID, a technology that will let the receiver of an e-mail message verify the identity of the sender. As with caller ID for telephones, senders will be able to choose whether to remain anonymous. But also like caller ID, recipients may presume that those who do not identify themselves are sending junk. (...) banks, travel companies and online stores that are finding that much of their e-mail is getting caught in spam filters.

  7. Scaling, Correlations, And Cascades In Finance And Turbulence, Physica A Next Article Bookmark and Share

    Abstract: The question of information cascades in finance appears in the literature. We use the dynamics of Kolmogorov's (...). As an alternative to the derivations given by Kolmogorov, Onsager, and Heisenberg, we also show how to derive (...) model from `time' reversible dynamics. We then discuss and compare five different analyses of finance data by econophysicists, including one where the information cascade was suggested. We explain why there is as yet no compelling evidence for an information cascade in finance. We observe that errors are incurred for large returns by using price differences instead of the logarithmic return, which is a dimensionless, additive variable.

    1. Do Stock Price Indices Respond Asymmetrically? Evidence From China, Japan, And South Korea, J. Asian Econ. Next Article Bookmark and Share

      Abstract: This study investigates whether asymmetric responses exist among the stock price indices of China, Japan, and South Korea. (...) this paper empirically tests for the existence of both magnitude and pattern asymmetries among these indices. The main results are as follows: first, magnitude asymmetry exists between the indices of Japan and South Korea. Second, (...) pattern asymmetry was found to exist in the responses of all three indices. When the possibility of the US influence was included in the analysis, the US effect was found to exist on the index returns of Japan and South Korea, but not on that of China.

  8. Cognitive And Institutional Perspectives Of Eco-Efficiency, Ecol. Econ. Next Article Bookmark and Share

    Abstract: The paper sketches out a theoretical framework for analysing the interplay between eco-efficiency, cognition and institutions. It derives from analytical shortfalls of the prevailing literature, (...) by using insights from New Institutional Economics, from Cognitive Science and, partly, from Evolutionary Economics. It emphasises the role cognition and institutions play in the adoption of `green' technologies by firms. The framework allows for an analysis why overall adoption of eco-efficiency still can be considered relatively slow and why some markets and firms are far ahead. As a brief case study the article reflects upon German waste law's ability to enhance eco-efficiency.

  9. Evolution Of Complex Life Cycles In Helminth Parasites Next Article Bookmark and Share

    The fundamental question of how complex life cycles-where there is typically more than one host-evolve in host-parasite systems remains largely unexplored. We suggest that complex cycles in helminths without penetrative infective stages evolve by two essentially different processes, (...) . In 'upward incorporation', a new definitive host, typically higher up a food web and which preys on the original definitive host, is added. Advantages to the parasite are avoidance of mortality due to the predator, greater body size at maturity and higher fecundity.

  10. Involving The Motor System In Decision Making, Alphagalileo & Biol. Lett. Next Article Bookmark and Share

    Abstract: The control of behaviour is usually understood in terms of three distinct components: sensory processing, decision making and movement control. This view has been questioned on the basis of physiological and behavioural data, blurring the distinction between these stages. We investigate to what extent the motor system itself contributes to the interpretation of behavioural situations. Using a robot based neuronal model of sensory motor integration we show that the population response of the motor system provides a substrate for the categorisation of behavioural situations. In this context, the motor cortex can be considered as part of a high-level perceptual system.

    1. Speed Vs. Accuracy In Collective Decision Making, Alphagalileo & Proc. Biol. Sc. Next Article Bookmark and Share

      Abstract: Decision-making often involves a compromise between speed and accuracy. An everyday example is typing speed vs. error rate. Here we consider how house-hunting ants balance speed and accuracy. Ants need to find the best available nest site but this is time consuming. In benign conditions they employ quorum-sensing so that the independent evaluations of many workers are collated. In harsh conditions they make more individualistic snap decisions. These are less accurate but faster and reduce the time that the colony is homeless and at risk. Thus ants can tune their crisis management through a flexible compromise between speed and accuracy.

  11. Bacterial Insecticides, The Scientist Next Article Bookmark and Share

    Excerpts: One means of controlling the spread of human pathogens and parasites that are spread by insect vectors-for example, malaria-is the use of insecticides. This approach is frequently compromised by the acquisition of resistance to the chemicals by the target insects, and novel, efficacious compounds are difficult to identify and expensive to develop. (...) Pasteur report the whole genome sequence of the bacterium Photorhabdus luminescens and describe two protein-encoding loci that are lethal to the mosquitoes (...). (...) genetic engineering of the bacterium-nematode pair for use as biological control agents.

  12. Nonlinear Modeling And Adaptive Monitoring In Biological Wastewater Treatment Plants, J. Biotech. Next Article Bookmark and Share

    Abstract: A new approach to nonlinear modeling and adaptive monitoring using fuzzy principal component regression is proposed and then applied to a real wastewater treatment plant data set. First, principal component analysis is used to reduce the dimensionality of data (...). Then a new adaptive discrimination monitoring method is proposed to distinguish between a large process change and a simple fault. The result shows that it has the ability to model the nonlinear process and multiple operating conditions and is able to identify various operating regions and discriminate between a sustained fault and a simple fault (or abnormalities) occurring within the process data.

  13. Lasers Operate Inside Single Cells, NYTimes Next Article Bookmark and Share

    Excerpts: With pulses of intense laser light a millionth of a billionth of a second long, US researchers are vaporizing tiny structures inside living cells without killing them. The technique could help probe how cells work, and perform super-precise surgery. The laser works inside the cell without damaging the surface. The light is focused extremely tightly, using a microscope, into a space a few hundred millionths of a millimetre across.

  14. Cell Biology: The Hippo Hypothesis, Nature Next Article Bookmark and Share

    Excerpts: The perfection of a fly's eye and the chaotic nature of tumours provide eloquent examples of the need to coordinate cell death and proliferation. The intricacies of the underlying mechanism are now being uncovered. (...)

    Although many genes have been shown to regulate either proliferation or apoptosis, little is known about how the two are coupled. Recently, however, geneticists have begun to uncover some of the genes involved in this coordination, (...) another such gene, hippo. (...) advance our understanding of this fundamental problem in organ development and cancer biology.

  15. Photosynthesis Puzzle Solved, BBC News Next Article Bookmark and Share

    Excerpts: A complete molecular-scale picture of photosynthesis - how plants convert sunlight to chemical energy - has been obtained, offering new insights into animal metabolism as well. Cyanobacteria from a hot spring provided the key. Photosynthesis is the most important chemical reaction on Earth. It is responsible for virtually all energy available for life in the biosphere. Biologists have determined the structure of the cytochrome, a protein complex that governs photosynthesis in a blue-green bacterium. (...) The key to the discovery was being able to crystallise cytochrome molecules, so that they could have their structure determined by an X-ray probe. (...) cytochrome gives some indication of the complex motion of electrons and protons across the bacterium's cell membrane, the boundary between the cell and its environment. (...) While animals do not employ photosynthesis, their cells do make use of similar proteins for respiration. The similarities could lead to a better understanding of our own metabolic processes.

  16. How to Assemble a Molecular Junction, Science Next Article Bookmark and Share

    Excerpts: The authors used a STM tip to form two lines of Au atoms with a separation of three to six lattice constants. They then positioned a CuPc molecule between the two lines of Au atoms. (...). The CuPc molecule has a symmetric cross shape. It fits snuggly into the five-lattice constant gap between the two Au lines, with one of the axes of the CuPc bridging the Au-Au junction. This final assembly is a perfectly ordered metal-molecule-metal junction of known atomic structure.

    1. Self-Assembly of Proteins into Designed Networks, Science Next Article Bookmark and Share

      Excerpts: The production of a designed arrangement of matter at the molecular level is a central goal of contemporary engineering endeavors . Besides micropositioning strategies, the materials can also be placed by spontaneous self-assembly processes. Efficient biological self-assembly systems are, for instance, myosin filaments, (...). Novel assemblies can be designed and produced with the use of engineered biological building blocks. (...) Here, we report a noncovalent planar network consisting of two biologically unrelated proteins and show how the mesh can be adjusted and also made switchable by varying the Ca2+ concentration.

  17. Magnetic Logic Devices Move Closer, Physics Web Next Article Bookmark and Share

    Excerpts: In most computers bits of data are stored in one place and processed in another. Now German physicists have proposed a new magnetic approach to computing in which the same element can store and process data. Andreas Ney and colleagues at the Paul Drude Institute in Berlin say that their "programmable logic element" could, in principle, operate as any one of four different logic operations (...).

    The new approach is based on magnetic random access memory (MRAM) elements that contain two magnetic layers separated by a spacer.

  18. TV Review:'Truth, War And Consequences', Selective Intelligence on Road to Baghdad, NYTimes Next Article Bookmark and Share

    Excerpts: Greg Thielmann, who left his post as director of the strategic, proliferation and military affairs office in the State Department's Bureau of Intelligence and Research last September, also describes in dispassionate tones how the State Department's intelligence reports were ignored or sanded down to suit the White House's case. Calling the administration's approach "faith-based intelligence," Mr. Thielmann says, "They were cherry-picking the information that we provided to use whatever pieces of it fit their overall interpretation." What the documentary does not point out is that every administration routinely ignores its most experienced in-house experts. The banks of the Potomac are littered with the spent careers of C.I.A. analysts and foreign service professionals who had discordant assessments of El Salvador, Bosnia and Iraq.

    1. Truth, War and Consequences, PBS Next Article Bookmark and Share

      Excerpts: Did America rush into a war in Iraq for which it was unprepared? Could the current volatility in Iraq have been prevented? And was the White House's rationale for war based on faulty and exaggerated intelligence reports?

      As the Bush administration faces continuing questions about its failure to secure peace in Iraq, FRONTLINE takes an in-depth, behind-the-scenes look at what some government officials say is the underlying cause of America's current problems in Iraq: the prewar political infighting (...).

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

    1. The Real Patriot Act, NYTimes Next Article Bookmark and Share

      Excerpts: (...) talk now about how to finance the $87 billion price tag for the reconstruction of Iraq. I say, let's make OPEC pay indirectly. Let's have a $1 a gallon gasoline tax and call it the "Patriot Tax." We could use the revenue it would raise about $110 billion a year to finance the entire reconstruction of Iraq, with plenty left for other good works. Here's the logic: The two things OPEC hates most are falling oil prices and gasoline taxes and the Patriot Tax would promote both.

    2. U.S. Surplus Sales Include Biological Weapons Gear, Reuters Next Article Bookmark and Share

      Excerpts: Undercover congressional investigators using the Internet were able to buy thousands of dollars of surplus laboratory equipment and protective gear from Defense Department laboratories that could be used to make biological and chemical weapons. To show how easily and cheaply such items could be acquired, the General Accounting Office told Congress on Tuesday investigators spent $4,100 to buy Defense Department equipment including a biological safety cabinet, a bacteriological incubator, an evaporator and protective clothing with an original cost of $46,900.

    3. Whistling In The Dark, TomPaine.com Next Article Bookmark and Share

      Excerpts: The November issue of Vanity Fair that hits the newsstands this week features a fascinating article about two whistleblowers from inside the nuclear weapons complex. But as these two step forward into the spotlight, the nation's number one defender of the nuclear weapons complex, Senator Pete Domenici (R-N.M.), is actively seeking to undermine legislation that would strengthen protections for nuclear whistleblowers. And it's no wonder. (...)

      But the legislation in the Energy bill that would repair the nation's broken system for protecting nuclear whistleblowers is currently on the skids

    4. Red Cross Criticizes Indefinite Detention in Guantamo Bay, NYTimes Next Article Bookmark and Share

      Excerpts: A senior official of the International Committee of the Red Cross said on Thursday that the holding of more than 600 detainees here was unacceptable because they were being held for open-ended terms without proper legal process. (...) , he said that it was intolerable that the complex was used as "an investigation center, not a detention center."

      He said the International Red Cross was making the unusual statements because of a lack of action.

      United States officials have said they have begun moving to sort the detainees, (...).

    5. A Sense of Betrayal, abcNEWS.com Next Article Bookmark and Share

      Excerpts: "Just a few months ago, this administration went out of its way to tell us how important human intelligence is," she said. "We cannot find Saddam Hussein because we have no human intelligence. We cannot find Osama bin Laden because there is no human intelligence. And here you are, you have a case officer who is gathering human intelligence, who is running agents, and here you are exposing her and everyone that she came in contact with."

      As an undercover agent, Mrs. Wilson's duties would have included recruiting agents (...)

  20. Links & Snippets Next Article Bookmark and Share

    1. Other Publications Next Article Bookmark and Share

      1. Military Sonar May Give Whales The Bends, A study of whales that died after a major naval exercise in the Atlantic show classic signs of decompression
      2. Free Markets Can Hit Economic Growth, If developing countries join the global economy too soon, they risk becoming trapped in a cycle of poverty and corruption, a new analysis suggests
      3. Search For Habitable Planets Narrows, A future NASA space telescope will look for Earth-like planets - now an astrobiologist has drawn up a shortlist of likely targets
      4. Citizens Strike Back In Intelligence War, A new US website will allow people to post information about the activities of government organisations, officials and the judiciary
      5. Global Warming To Put Gardens In Bloom, Plant growth across Europe and North America is set to dramatically accelerate, but weeds and insects could benefit more
      6. Toward Vibrational Mode Control in Catalysis, A. C. Luntz, Science Oct 3 2003: 70-71.
      7. Driving the Electron Over the Edge, Gabriel Kotliar, Science Oct 3 2003: 67-69
      8. Universality and Critical Behavior at the Mott Transition, P. Limelette, A. Georges, D. J& - 24296;ome, P. Wzietek, P. Metcalf, J. M. Honig, Science Oct 3 2003: 89-92.
      9. Computing Net Promises Vast Power, A global network of supercomputers promises to revolutionise not just the way we use the Internet, but computing itself.
      10. Tantalising Evidence Hints Universe Is Finite, The data suggest the Universe is relatively small but other work seems to contradict the idea - scientists are now busy trying to resolve the conundrum
      11. Mosquito Production Mooted As Fast Track To Malaria Vaccine , Declan ButleR, 02 October 2003, Nature 425, 437, DOI: 10.1038/425437a
      12. Protein Locks Out Prion Diseases , Claire Ainsworth, 03/10/04, New Scientist
      13. A Bureaucratic Fix For Iraq?, Ivan Eland, 03/10/06, The Independent Institute
      14. Experts: Nanomedicine vital to cancer cure, Steve Mitchell, 03/10/10, Washington Times
      15. Metadata, Mark II, Jason Cook, 2003/07/07
      16. Robust Development As A Consequence Of Generated Positional Information, C. Furusawa - furusawaacomplex.c.u-tokyo.ac.jp& k. kaneko, 2003/07/19, DOI: 10.1016/S0022-5193(03)00189-9
      17. An Example Of Nonlinear Endogenous Business Cycle Model: Build In The Trade Union, S. Imoto - imotoaokiu.ac.jp, 2003/08/02, DOI: 10.1016/S0165-1765(03)00160-5
      18. New Research Says Being Top Dog Makes Us Happier Than Simply Getting Top Dollar, P. Dunn - p.j.dunnawarwick.ac.uk, 2003/10/02
      19. Collision Avoidance And A Looming Sensitive Neuron: Size Matters But Biggest Is Not Necessarily Best, F. C. Rind & R. D. Santer, 2003/10/06
      20. Digital Technologies Post-Sep. 11th: More Security But Less Privacy For The European Citizen?, M. Gonzalez - marta.gonzalezajrc.es, 2003/10/06
      21. Scientist Find More Efficient Way To 'Unlearn' Fear, 2003/10/06, ScienceDaily & Ameri. Psycho. Asso.
      22. Pathways Of Emotion - From Cortex To Peripheral Organs, G. Bradley - pressabiomedcentral.com, 2003/10/07, Alphagalileo & BioMed Central
      23. How Genes Orchestrate Facial Expressions; Humans Share DNA That Helps Mice Move Ears, Eyes, Whiskers, 2003/10/08, ScienceDaily & Univ. Of Utah Health Sc. Center
      24. Purdue Researchers Stretch DNA On Chip, Lay Track For Future Computers, 2003/10/09, ScienceDaily & Purdue Univ.
      25. Engineering Proteins That Bind, Move, Make And Break DNA, C. H Collins, Y. Yokobayashi, D. Umeno & F. H Arnold - francesacheme.caltech.edu, Aug. 2003, DOI: 10.1016/S0958-1669(03)00091-0
      26. Strong Rules For Detecting The Number Of Breaks In A Time Series, F. Altissimo & V. Corradi - v.corradiaexeter.ac.uk, Dec. 2003, DOI: 10.1016/S0304-4076(03)00147-7
      27. Join The Dots, A network of quantum dots that pass electrons between them one at a time can be used to carry out logic operations at very high device integration densities., Oct. 9, 2003, Nature Materials Update
      28. Purdue Researchers Stretch DNA On Chip, Lay Track For Future Computers, , October 2003, Purdue News
      29. Modeling Volatility And Changes In The Swap Spread, F. Ina - francis.inabuseco.monash.edu.au, r. brown & v. fang, online 2003/07/22, DOI: 10.1016/S1057-5219(03)00067-X
      30. Self-Emergence Of Chaos In The Identification Of Irregular Periodic Behavior, O. D. Feo, Online 2003/09/18, DOI: 10.1063/1.1606631
      31. A Hierarchy Machine: Learning To Optimize From Nature And Humans, M. Pelikan - pelikanailligal.ge.uiuc.edu, d. e. goldberg, Online 2003/09/24

    2. Webcast Announcements Next Article Bookmark and Share

      1. ECAL 2003, 7th European Conference on Artificial Life, Dortmund, Germany, 03/09/14-17
      2. Dean LeBaron's Archive of Daily Video Commentary, Ongoing Since February 1998
      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. SPIE's 1st Intl Symp on Fluctuations and Noise, Santa Fe, NM, 2003/06/01-04
      7. NAS Sackler Colloquium on Mapping Knowledge Domains, Video/Audio Report, 03/05/11
      8. Uncertainty and Surprise: Questions on Working with the Unexpected and Unknowable, The University of Texas Austin, Texas USA, 2003/04/10-12
      9. 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

      10. 13th Ann Intl Conf, Soc f Chaos Theory in Psych & Life Sciences, Boston, MA, USA, 2003/08/08-10
      11. Fair Value; The Good, The Bad, and The Unknown, Financial Executives International (FEI), 03/08/26, 5:00-6:00 p.m. GMT
      12. The Semantic Web and Language Technology - Its Potential and Practicalities, Bucharest, Romania, 03/07/28-08/08

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

      1. Exystence Thematic Institute - Algorithms And Challenges In Hard Combinatorial Problems, Turin, Italy, 03/10/01-30
      2. 2003 IEEE/WIC Intl Joint Conf. Web Intelligence and Intelligent Agent Technology, Halifax, Canada, 03/10/13-17
        1. Workshop on Collaboration Agents: Autonomous Agents for Collaborative Environments, Halifax, Canada, 03/10/13
      3. Complexity Science and Educational Research, U Alberta Edmonton, AB Canada , 03/10/16-18
      4. Art & Artificial Life International Competition, Deadline: 03/10/31
      5. Systems-Based Practice: Competency for Medical Professionals, Boston, MA, 03/11/02
      6. Intl Congress on Computational Intelligence, Medellin, Colombia, 03/11/06-08,(Mirror)
      7. American Society for Cybernetics (ASC) 2003 Conference (H.v.Foerster), Vienna, Austria, 03/11/10-15
      8. Modeling Workshop, MIT, Cambridge, MA, 03/11/15-16
      9. 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
      10. ICDM '03: The Third IEEE International Conference on Data Mining, Melbourne, Florida, USA, 03/11/19-22
      11. 4th Intl Conf on Systems Science and Systems Engineering, Hong Kong, 03/11/25-28
      12. 3rd International Workshop on Meta-Synthesis and Complex System, Guangzhou, China, 03/11/29-30
      13. Plexusinstitute Organizational Management Conference With Ralph Stacey, Washington, DC, 03/12/02-04
      14. 2nd International Workshop on the Mathematics and Algorithms of Social Insects, Georgia Tech, Atlanta, Georgia, USA; 03/12/15-17
      15. 2nd WSEAS Intl Conf on Non-linear Analysis, Non-linear Systems and Chaos, Athens, Greece, 03/12/29-31
      16. Complex Physical, Biological and Social Systems, MIT, Cambridge, MA, 04/01/05-09
      17. 2nd Biennial Seminar on the Philosophical, Epistemological, and Methodological Implications of Complexity Theory, Havana, Cuba, 04/01/07-10
      18. 1st International Workshop on Biologically Inspired Approaches to Advanced Information Technology, Lausanne, Switzerland, 04/01/29-30
      19. Leadership in Rapidly Changing Business Environments -Learning and Adapting in Time, Cambridge, MA, 04/02/26-27
      20. 4th Intl ICSC Symposium Engineering Of Intelligent Systems (EIS 2004), Island of Madeira, Portugal, 04/02/29-03/02
      21. Arbeitskreis Physik sozio-ökonomischer Systeme Jahrestagung, Regensburg, Germany, 04/03/08-12
      22. Fractal 2004, "Complexity and Fractals in Nature", 8th Intl Multidisciplinary Conf, Vancouver, Canada, 04/04/04-07
      23. Urban Vulnerability and Network Failure: Constructions and Experiences of Emergencies, Crises and Collapse, Manchester, UK, 04/04/29-30
      24. 5th International Conference on Complex Systems (ICCS2004), Boston, MA, USA, 04/05/16-21
      25. 3rd Intl Conf on Systems Thinking in Management (ICSTM 2004) "Transforming Organizations to Achieve Sustainable Success", Philadelphia, Pa, USA, 04/05/19-21
      26. 9th Annual Workshop on Economics and Heterogeneous Interaction Agents (WEHIA04),, Kyoto, Japan, 2004/05/27-29
      27. 13th International Symposium on HIV & Emerging Infectious Diseases, Toulon, France, 04/06/03-05
      28. From Animals To Animats 8, 8th Intl Conf On The Simulation Of Adaptive Behavior (SAB'04), Los Angeles, USA, 04/07/13-17
      29. ANTS 2004, 4th International Workshop on Ant Colony Optimization and Swarm Intelligence, Brussels, Belgium, 04/09/05-08
      30. The 8th International Conference on Parallel Problem Solving from Nature (PPSN VIII), Birmingham, UK, 04/09/18-22
      31. XVII Brazilian Symposium on Artificial Intelligence, Sao Luis, Maranhao - Brazil, 04/09/22-24

    4. ComDig Announcement: New ComDig Archive in Beta Test Next Article 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.

    5. Special Announcement: Artists Explore Complex Systems, Federal Reserve Board Bookmark and Share

      COMPLEXITY, the first major museum exhibition about complex systems, is on display at the Federal Reserve Board in Washington, DC, ongoing - 03/11/28. The Washington exhibition is being co-sponsored by the Washington Center for Complexity and Public Policy and the Fine Arts Program of the Federal Reserve Board.

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