The Adjacent Possible, A Talk With Stuart Kauffman, Edge Video
Excerpts: It just may be the case that biospheres on average keep expanding into the adjacent possible. By doing so they increase the diversity of what can happen next. It may be that biospheres, as a secular trend, maximize the rate of exploration of the adjacent possible. If they did it too fast, they would destroy their own internal organization, so there may be internal gating mechanisms. This is why I call this an average secular trend, since they explore the adjacent possible as fast as they can get away with it.
Excerpts: What do metabolic pathways and ecosystems, the Internet, and propagation of HIV infection have in common? Until a few years ago, the answer would have been "very little." The first two examples are biological and shaped by evolution, the third is a human creation, and the fourth is an unwieldy mixture of biology and sociological components. In the past few years, however, the answer has emerged that they all share similar network architectures.
Seemingly out of nowhere, in the span of a few years, network theory has become one of the most visible pieces of the body of knowledge that can be applied to the description, analysis and understanding of complex systems.
Computer Simulations of History of Life: Speciation, Emergence of Complex Species from Simpler Organisms, and Extinctions, arXiv
Abstract: We propose a generic model of eco-systems, with a hierarchical food web structure. In our computer simulations we let the eco-system evolve continuously for so long that that we can monitor extinctions as well as speciations over geological time scales. Speciation leads not only to horizontal diversification of species at any given trophic level but also to vertical bio-diversity that accounts for the emergence of complex species from simpler forms of life. We find that five or six trophic levels appear as the eco-system evolves for sufficiently long time, starting initially from just one single level. Moreover, the time intervals between the successive collections of ecological data is so short that we could also study "micro"-evolution of the eco-system, i.e., the birth, ageing and death of individual organisms.
Model-to-Model Analysis, JASSS
Excerpts: (...) despite this plethora of interesting models, they are rarely compared, built-on or transferred between researchers. It would seem there is a dearth of "model-to-model" analysis. Rather researchers tend to work in isolation, designing all their models from scratch and reporting their results without anyone else reproducing what they found. Although the opposite extreme, where all that seems to happen is the next twist on an existing model, is not to be wished for, there are considerable dangers if everybody only works on their own model. Part of the reason for this is that models tend to be very seductive - especially to the person who has built the model. What is needed is a third person to check the results. However it is not always clear how people who are not the modeller can interpret or utilise such results, because it is very difficult to replicate simulation models from what is reported in papers.
- Source: Model-to-Model Analysis, David Hales, Juliette Rouchier, Bruce Edmonds, JASSS 6(4) Special Section, 2003-10-31
Self-Maintaining Web Page, Info. Sys.
Abstract: Data-intensive web-based information systems usually employ database systems to store the contents forming the basis for web page construction. Generating web pages on the fly, especially in peak times, can lead to severe performance problems. Thus, pre-generation of web pages has been suggested to be ready for prime time, allowing to reliably deliver several hundred pre-generated pages per second. This paper presents a novel approach for "self-maintaining" web pages that is, different to previous approaches, characterized by a simple database-to-web page mapping and very low page re-generation costs. This is achieved by utilizing fragmentation techniques from distributed databases (...).
- Source: Self-Maintaining Web Page, M. Schrefl - schrefldke.uni-linz.ac.at, M. Bernauer, E. Kapsammer, B. Pröll, W. Retschitzegger& T. Thalhammer, DOI: 10.1016/S0306-4379(03)00004-8, Dec. 2003
- Contributed by Pritha Das - prithadas01yahoo.com
Going, Going, Gone: Lost Internet References, Science
Excerpts: The use of Internet references in academic literature is common, and Internet references are frequently inaccessible. The extent of Internet referencing and Internet reference activity in medical or scientific publications was systematically examined in more than 1000 articles published between 2000 and 2003 in the New England Journal of Medicine, The Journal of the American Medical Association, and Science. Internet references accounted for 2.6% of all references (672/25548) and in articles 27 months old, 13% of Internet references were inactive. Publishers, librarians, and readers need to reassess policies, archiving systems, and other resources for addressing Internet reference attrition to prevent further information loss.
- Source: Going, Going, Gone: Lost Internet References, Robert P. Dellavalle, Eric J. Hester, Lauren F. Heilig, Amanda L. Drake, Jeff W. Kuntzman, Marla Graber, Lisa M. Schilling, Science 302: 787-788
Intel Claims Breakthrough in Chip Making, NYTimes
Excerpts:: With today's transistor gates - which consist of a piece of material that functions like a water faucet for electrical current - approaching thicknesses of just five atomic layers, computer chips have come to require more power, which causes them to run much hotter. (...)
Intel's chips have been running significantly hotter with each generation (...)
After that it hopes to scale down to 65 nanometers, followed by a leap to just 45 nanometers, where the new material, which Intel refuses to identify, would come into play.
Impacts Of Human Disturbances On Biotic Communities In Hawaiian Streams, BioScience
Abstract: Streams throughout the tropics have been altered by water diversion, channel modification, introduced species, and water quality degradation. The Hawaiian Islands, with watersheds ranging from the relatively pristine to the highly degraded, offer an opportunity to examine the impacts of human disturbance on native stream communities. For example, urbanization is often accompanied by stream-channel modification and reduced canopy cover, resulting in higher water temperatures and greater fluctuations in daily temperature. Even in relatively pristine watersheds, stream diversions can result in decreased flow velocity and water depth, reducing habitat availability.
Fast Friends, Sworn Enemies, Science
Excerpts: Organisms that work together, researchers are finding, sometimes have a falling out. A new awareness of the complexity of symbiotic relationships is shaking up the ecology and evolutionary biology communities.
Plant pathologists have made a few key observations in studying grasses and microscopic fungi that live between their cells. (...)
Moreover, the cause of a relationship switch is not clear-cut. But environmental factors can play a role, such as food shortages, new hosts, alterations in the chemical milieu, or changes in the local community.
Fish Farting May Not Just Be Hot Air, NewScientist
Excerpts: Finally, three observations persuaded the researchers that the FRT is most likely produced for communication. Firstly, when more herring are in a tank, the researchers record more FRTs per fish.
Secondly, the herring are only noisy after dark, indicating that the sounds might allow the fish to locate one another when they cannot be seen.
Thirdly, the biologists know that herrings can hear sounds of this frequency, while most fish cannot. Thirdly, the biologists know that herrings can hear sounds of this frequency, while most fish cannot.
Pacific And Atlantic Herring Produce Burst Pulse Sounds, Alphagalileo & Biol. Lett.
Abstract: Herring are commercially valuable northern hemisphere marine fishes whose biology is generally well known. Now, researchers from Canada and the UK have discovered a hidden aspect to their lives. At night, herring squeeze bubbles out of their swimbladders, through an anal pore, producing distinctive sounds not unlike a person blowing raspberries. It is not clear why. These sounds could be incidental, but evidence that herring produce them more frequently in the company of others, indicates a social role. If so, sound may be more important for herring than previously thought and, therefore, so might the impacts of human-induced noise pollution.
Getting Into a Cassowary's Head, Science Now
Excerpts: New research suggests that the birds communicate with low-frequency infrasound, a rarity among terrestrial animals. (Only elephants are known to use it.) Infrasound would be appropriate for this solitary animal because the sound carries well through long stretches of dense jungle, the researchers say.
The finding may shed light on the purpose of the cassowary's prominent headpiece, or casque. (...) suspects that the casques are involved instead in receiving signals. The horny exterior and interior dark "sludge" could act like a boundary-layer microphone (...)
A Four-Base Paired Genetic Helix with Expanded Size, Science
Excerpts: We describe a new molecular class of genetic-pairing system that has a native DNA backbone but has all four base pairs replaced by new, larger pairs. The base pairs include size-expanded analogs of thymine and of adenine, both extended by the width of a benzene ring (2.4 ?. The expanded-diameter double helices are more thermodynamically stable than the Watson-Crick helix, likely because of enhanced base stacking. Structural data confirm a right-handed, double-stranded, and base-paired helical form. Because of the larger base size, all the pairs of this helical system are fluorescent, which suggests practical applications in detection of natural DNA and RNA. Our findings establish that there is no apparent structural or thermodynamic prohibition against genetic systems having sizes different from the natural one.
Excerpts: Scientists at Stanford University have created an expanded molecule of DNA with a double helix wider than any found in nature. Besides being more heat resistant than natural DNA, the new version glows in the dark - a property that could prove useful in detecting genetic defects in humans. A description of the molecule, dubbed ''xDNA,'' is published in the Oct. 31 issue of the journal Science. ''We've designed a genetic system that's completely new and unlike any living system on Earth,'' said Eric T. Kool, a professor of chemistry at Stanford and co-author of the Science study. ''Unlike natural DNA, our expanded molecule is fluorescent and is considerably more stable when subjected to higher temperatures.''
Illusions and Perceived Images in the Primate Brain, Science
Excerpts: In the tactile funneling illusion, the simultaneous presentation of brief stimuli at multiple points on the skin produces a single focal sensation at the center of the stimulus pattern even when no physical stimulus occurs at that site. Consistent with the funneling percept, we show with optical imaging in area 3b of the primary somatosensory cortex (SI) that simultaneous stimulation of two fingertips produces a single focal cortical activation between the single fingertip activation regions. Thus, in contrast to traditional views of the body map, topographic representation in the SI reflects the perceived rather than the physical location of peripheral stimulation.
Optical Imaging of a Tactile Illusion, Science
Excerpts: A question that has puzzled neuroscientists for more than 100 years is how the brain represents a real stimulus versus its perceived illusion. In his Perspective, Eysel discusses new work in monkeys and humans (Chen et al., Whitney et al.) showing that illusory representations of tactile and visual stimuli in the primary sensory cortex depend on the type of stimulus and how it is presented.
Fighting Prostate Cancer Takes The Whole Tomato, KnoxNews
Excerpts: Whole tomato products appear to be a better bet for inhibiting development of prostate cancer than the compound lycopene alone, according to a new animal study.
Rats fed diets containing whole tomato powder, which contains lycopene and other compounds, had a lower risk of death from prostate cancer than animals fed diets supplemented with pure lycopene or on a standard diet. (...)
"Our observations support the concept that tomato products contain components in addition to lycopene that may inhibit prostate cancer,"(...)
Lycopene's Anti-cancer Effect Linked To Other Tomato Components, ScienceDaily/UIUC
Excerpts: New research suggests that lycopene -- a carotenoid in tomatoes that has been linked to a lowered risk of prostate cancer -- does not act alone. (…)
Lycopene is an antioxidant and the pigment that provides the red color of tomatoes. Because of recent epidemiological studies suggestive of lycopene's role against prostate cancer, the compound has made its way into dietary supplements. (…)
"It has been unclear whether lycopene itself is protective. This study suggests that lycopene is one factor involved in reducing the risk of prostate cancer,"
Language Problems Can Be Predicted From Newborn Babies´ Brain Responses, Alphagalileo
Excerpts: Difficulties in reading, also called dyslexia, are major specific learning disabilities that affect children school achievement and their career choices. (...) shows that babies´ brain responses, obtained shortly after birth, do predict poorer language skills in the at-risk children. The results may have future applications for the early identification of children at risk for developmental language problems. In this 10-year project (...) children are followed from birth to school-age. The results show that brain responses to speech sounds do differ between at-risk and control newborns. These differences were associated with later language development.
The Infection Connection In Schizophrenia, The Scientist
Excerpt: It's a scary thought that one could develop a debilitating mental illness such as schizophrenia as easily as catching a cold. Well, it's more complicated than that, say advocates of the so-called infectious hypothesis, which states that viral and possibly bacterial infections occurring at critical points in brain development could increase the risk of mental illness. Everything from influenza to herpes simplex viruses to Toxoplasma gondii has been implicated in elevating risk for schizophrenia, perhaps indirectly through immunological reactions that change brain chemistry or wiring at key developmental stages.
Schizophrenia's Complexity, The Scientist
Editor's Note: This is a graphical landscape representation "Reaction Surface" of "Liability to Schizophrenia" as a function of the "Environment" (Ranging from "Protective" to "Harmful") and "Age" (Starting at "-9 Months")
Timing Is Everything, Nature
Excerpts: Given what we already know about circadian biology, certain aspects of modern life seem perverse. Adolescents are notorious night owls, yet in some countries the school day starts so early that only the extreme outliers on the normal distribution are likely to function properly in the first lesson of the day. Is it any wonder that teachers are frequently faced with a class full of sullen, disinterested students?
(…) Should the selection of workers for particular shifts take their chronotypes into account?
Restless Nights, Listless Days, Nature
Excerpts: Light also helps to relieve the symptoms of depression that afflict patients with seasonal affective disorder. (...) "Light-treatment results can be seen within a week - an advantage over classical antidepressants, which take several weeks to kick in",(...).
While scientists are finding that light or melatonin can help when daily biological rhythms are off-balance, they are also discovering the alarming extent to which modern society works against, rather than with, normal circadian biology. Employers, educators and politicians are only now realizing that there may be a serious issue to face.
Neuroscience: States Of Mind, Nature
Excerpts: In the brains of anaesthetized animals, neurons create spontaneous patterns of activity that resemble representations of visual stimuli. This finding may change our notions about visual perception. (…)
Instead, the cortex seems to show intrinsic patterns of activity that evolve over time by switching among a specific set of states. Remarkably, these states resemble the patterns of activity that are produced in response to certain visual stimuli. Studying how the intrinsic cortical states interact with incoming visual information might bring us closer to understanding perception.
Excerpts: The findings also indicate that "timing is wrapped up within intentions," (…). "We do things according to a time scale: 'By now I should do this, by now I should have my hand here.'" The timing neurons identified may have a broad range of intention-related activities, adds Shadlen. Neurons in the area appear to represent abstract qualities such as "an evolving conviction, belief, or the weight of evidence favoring a particular proposition, so long as that proposition is going to be communicated by an eye movement to a target in that neuron's response field."
Cutting Neurons Down To Size, The Scientist
Excerpts: Pruning occurs in probably all vertebrates and in many lower animals; (…).
(…) density peaks from ages 1 to 2, declines until age 16, and then levels off. At maximum, a neuron in prefrontal cortex has about 80,000 synapses; the adult total is approximately half that figure.(…)
Three thousand magnetic resonance imaging scans of 1,200 people, most under the age of 20, show that gray matter peaks at age 11 in girls and 12 in boys, and decreases during adolescence.
Gauging The Effects Of Alcohol And Nicotine On Adolescent Brains, The Scientist
Excerpts: It seems that the adolescent brain may be particularly vulnerable to the effects of nicotine and alcohol. At a recent conference where researchers discussed published and unpublished work, studies showed that alcohol's impact on a variety of brain activities appears more severe in adolescent rats. Similarly, though results don't always agree, the adolescent brain also appears to be extremely sensitive to the effects of nicotine.(…)
These findings, he says, "could possibly suggest" a neural basis for what many researchers regard as the more severe impairment of adolescent reasoning under alcohol compared to adults.
Functional MRI Offers A Compelling Neurological View, But Of What?, The Scientist
Excerpts: For centuries, philosophers and biologists alike dreamed of watching the brain operate to see its active response to sensations, actions, or even thoughts. In some ways, functional magnetic resonance imaging (fMRI) provides such a view. This technology essentially measures blood flow to areas of the brain, and presumably neural activity, in real time. The technique could help researchers specifically map the brain. The visual cortex, for example, appears to light up when a subject sees something. Still, scientists remain unsure about exactly what the signal, the flashing spots on an fMRI screen, actually mean.
The Genetics of Adult-Onset Neuropsychiatric Disease: Complexities and Conundra?, Science
Excerpts: Genetic factors play a major role in the etiology of adult-onset neurodegenerative and neuropsychiatric disorders. Several highly penetrant genes have been cloned for rare, autosomal-dominant, early-onset forms of neurodegenerative diseases. These genes have provided important insights into the mechanisms of these diseases (often altering neuronal protein processing). However, the genes associated with inherited susceptibility to late-onset neurodegenerative diseases, schizophrenia, and bipolar disorder appear to have smaller effects and are likely to interact with each other (and with nongenetic factors) to modulate susceptibility and/or disease phenotype. Several strategies have recently been applied to address this complexity, leading to the identification of a number of candidate susceptibility loci/genes.
Postnatal Neurodevelopmental Disorders: Meeting at the Synapse?, Science
Excerpts: We often think of neurodevelopmental disorders as beginning before birth, and many certainly do. A handful, however, strike many months after birth, following a period of apparently normal growth and development. Autism and Rett syndrome are two such disorders, and here I consider some of their similarities at the phenotypic and pathogenic levels. I propose that both disorders result from disruption of postnatal or experience-dependent synaptic plasticity.
'The Matrix': Global Opening, NYTimes
Excerpts: There's an uncanny feel to the way "The Matrix Revolutions" is being released, a reminder that the movies - some movies at least - have ceased to be about watching movies. But in this release, it's about simultaneity of experience, the way everyone sat down at once to watch the first showing of "The Matrix Revolutions" and got up two hours later wondering, worldwide, what the fuss was.
As Earth Warms, the Hottest Issue Is Energy, NYTimes
Excerpts: The cost of energy from solar cells has dropped sharply in the past few decades.(…) Now it is only about 35 cents. With fossil fuels, a kilowatt-hour costs just a few cents.
But solar still has much room for improvement. Commercial cells are only 10 to 15 percent efficient. With much more research, new strategies to absorb sunlight more efficiently could lead to cells that reached 50 to 60 percent efficiency. If the cells could be made cheaply enough, they could produce electricity for only 1 or 2 cents a kilowatt-hour.
This Can't Go On, NYTimes
Excerpts: Academic economists often cite Stein's Law, a principle enunciated by the late Herbert Stein, chairman of the Council of Economic Advisers during the Nixon administration. The law comes with various wordings; my favorite is: "Things that can't go on forever, don't." Believe it or not, that's a useful reminder.
For we're now led by men who think that macho posturing makes Stein's Law go away. On issues ranging from budgets to foreign policy, they insist that we can sustain the unsustainable.
Bush Demands Mid-East Democracy, BBC News
Excerpts: President George W Bush has deplored the "freedom deficit" in the Middle East and said the United States must remain focused on the region "for decades".
"Our commitment to democracy is being tested in the Middle East," he said in a (…) speech in defense of US democracy.
Mr Bush said dictators in Iraq and Syria had "left a legacy of torture, oppression, misery and ruin". (…)
But some governments in the region were "beginning to see the need for change", he said, citing Morocco, Bahrain, Kuwait, Oman and Yemen.
Editor's Note: Perhaps the message would be more convincing if a democratic system would be supported in the U.S. (See e.g. After Bitter Fight, Texas Senate Redraws Congressional Districts, NYTimes in Complexity Digest 2003.42#18
Death by Optimism, NYTimes
Excerpts: Mr. Cheney has cited a Zogby International poll to back his claim that there is "very positive news" in Iraq. But the pollster, John Zogby, told me, "I was floored to see the spin that was put on it; some of the numbers were not my numbers at all."
Mr. Cheney claimed that Iraqis chose the U.S. as their model for democracy "hands down," (...). In fact, Mr. Zogby said, only 23 percent favor the U.S. democratic model,(...).
Rebel War Spirals Out Of Control As US Intelligence Loses The Plot, The Observer
Excerpts: 'What we are looking at,' one UK official told The Observer, 'is not some monolithic organisation with a clear command. That would be far easier for us to deal with and get into. Instead, we are looking at lots of different groups with different agendas. They are locally organised with each having its loyalty focused on middle-ranking former commanders.'
What he describes is a network of partisan-type groups without a central command and links between them based on personal relationships - an organic rather than monolithic structure.
Pentagon Says a Covert Force Hunts Hussein, NYTimes
Excerpts: (…) to disband two Special Operations missions, Task Force 5 in Afghanistan and Task Force 20 in Iraq, officials said.
Military officers say a broader, regional mission was given to the new force, which has become one of the Pentagon's most highly classified and closely watched operations.(…)
Military officers say that focusing the intelligence, and the Special Operations firepower, within one organization, called Task Force 121, streamlines the effort to use information on these targets and mount an attack.
Private Jessica Says President Is Misusing Her 'Heroism', The Observer
Excerpts: And America is deter mined that Lynch will be a heroine, despite the fact that she never fired a shot, and instead got down on her knees to pray as her unit was surrounded by enemy forces. As she pointed out herself, it was her dead colleague Lori Piestewa, a Native American mother of two, who went down fighting. (…)
Lynch says the circumstances of her rescue was dramatised and manipulated by the Pentagon. She was not rescued in a 'blaze of gunfire' as reported by Defence Department officials last April, but picked up from compliant Iraq doctors who had saved her life.
Complex Challenges: Global Terrorist Networks
US Crackdown On Bioterror Is Backfiring, NewScientist
Excerpts: Others are considering abandoning existing work. Irreplaceable collections of microbes essential for managing and tracing outbreaks, bioterrorist or natural, are being destroyed simply because labs cannot comply with the new rules.(…)
The climate of fear created by the Butler case is even threatening the US's ability to detect bioterrorist activity. New Scientist has been told that labs in one state are no longer reporting routine incidents of animals poisoned with ricin, a deadly toxin found in castor beans, for fear of federal investigation.
Scientists Brave New Bioterrorism World, NRC Report Says Scientists Should Self-Censor, NewScientist
Excerpts: A proposal for a self-policing system to prevent terrorists from learning cutting-edge biotech information puts US life scientists face-to-face with the prospect that the broad freedoms they've traditionally enjoyed could be constricted. A National Research Council (NRC) committee formally suggested in October that scientists create a voluntary system to review all future American biotechnology experiments.1 Under the proposal, research judged too sensitive would be voluntarily moved into high-security labs, and the government could then bar publication of the results.
The 'Conspiracy' Art of Mark Lombardi, NPR
Excerpts: Using just a pencil and a huge sheet of paper, Lombardi had created an intricate pattern of curves and arcs to illustrate the links between global finance and international terrorism.
In other drawings, Lombardi explored subjects ranging from the collapse of the Vatican bank to the Iran-Contra scandal. (...) some looking like constellations of stars on a dark night, others swirling clouds of abstract lines and points.
A traveling show of Lombardi's work opens this weekend at the Drawing Center in New York City.
Links & Snippets
- Origin and Migration of the Alpine Iceman, Wolfgang M& - 57702;ler, Henry Fricke, Alex N. Halliday, Malcolm T. McCulloch, Jo-Anne Wartho, Science 2003 302: 862-866.
- Future Brightening for Depression Treatments, Without fully understanding what causes depression or how the disease takes hold in the brain, researchers are racking up early successes with a wide variety of new treatment strategies
,Constance Holden, Science 302: 810-813
- Nanomotors Realise Visionary's Dream , 03/10/30, BBC News
- Cosmic Survey: Galaxy Map Reveals Dark Business As Usual, 03/11/01, The most precise map of how galaxies cluster, pulled together by the tug of gravity, has confirmed that most of the cosmos is in the dark, consisting of 5 percent ordinary matter, 25 percent dark matter, and 70 percent dark energy.
Also available in Audible Format
- Stone Age Code Red: Scarlet Symbols Emerge In Israeli Cave, 03/11/01, Science News, Also available in Audible Format . Lumps of red ocher excavated near human graves in an Israeli cave indicate that symbolic thinking occurred at least 90,000 years ago, much earlier than archaeologists have traditionally assumed.
- Beast Buddies, 03/11/01, Science News, Also available in Audible Format . As researchers muse about the evolutionary origins of friendship, even the social interactions of giraffes are getting a second look.
- A Global Democracy Policy, 03/11/03, NYTimes
- 5-Prime, The Myriad Definitions of Self, Larry H. Anderson, 03/11/03, The Scientist
- Unique Molecular Structure Offers Insight Into Nanoscale Self-Assembly, Solution Chemistry, 03/11/05, DOE/Brookhaven National Laboratory PRess Release
- Dynamic Of Flying And Population Structure Of Ground Beetle, Harpalus Rufipes (Degeer, 1774), Aleksandrovich O. P., Zelener N. P., Prishchepchik O. V., 2003
- DNA. The secret of life?, Luis Benítez-Bribiesca, 2003-10, Archives of Medical Research 34(5):355-356, DOI: 10.1016/S0188-4409(03)00078-X
- Information Super-diffusion on Structured Networks, Bosiljka Tadic', Stefan Thurne, 2003-10-27, Physica A, Article in Press, Uncorrected Proof, DOI: 10.1016/j.physa.2003.10.007
- Adaptive Agents, Political Institutions and Civic Traditions in Modern Italy, Ravi Bhavnani, 2003-10-31, JASSS 6(4)
- Coordination Mechanisms Based on Cooperation and Competition within Industrial Districts: An Agent-based Computational Approach, Vito Albino, Nunzia Carbonara, Ilaria Giannoccaro, 2003-10-31, JASSS 6(4)
- Simulation and Validation of an Integrated Markets Model, Brian Sallans, Alexander Pfister, Alexandros Karatzoglou, Georg Dorffner, 2003-10-31, JASSS 6(4)
- Social Attitudes: Investigations with Agent Simulations Using Webots, Ivica Mitrovic, Kerstin Dautenhahn, 2003-10-31, JASSS 6(4)
- The Hirsute, the Hairless, and the Human, Stuart Blackman, 2003-11-03, The Scientist
- Simple Maps with Periodic Parameter Fluctuations: A Source for Complex Periodic Motion Which is Indistinguishable from Chaos, L. Hector Juarez, Holger Kantz, Oscar Martinez, Eduardo Ramos, Raul Rechtman, 2003-11-4, arXiv, DOI: nlin.CD/0311006
- Phase Transitions in Random Boolean Networks with Different Updating Schemes, Carlos Gershenson, 2003-11-5, arXiv, DOI: nlin.AO/0311008
- Can False Memories Be Created Through Nonconscious Processes?, R. Zeelenberg - rzeelenbindiana.edu, G. Plomp & J. G. W. Raaijmakers, 2003/08/01, DOI: 10.1016/S1053-8100(03)00021-7
- Caffeine, Fatigue, And Cognition, M. M. Lorist - m.m.loristppsw.rug.nl, M. Tops, 2003/09/17, DOI: 10.1016/S0278-2626(03)00206-9
- Linking Economic And Ecological Models For A Marine Ecosystem, D. Jin - djinwhoi.edu, P. Hoagland & T. M. Dalton, 2003/09/18, DOI: 10.1016/j.ecolecon.2003.06.001
- Empiricism In Ecological Economics: A Perspective From Complex Systems Theory, J. R. -Martin - jesusramosmartinyahoo.es, 2003/09/26, DOI: 10.1016/S0921-8009(03)00191-5
- Multiple Colonization Of Madagascar And Socotra By Colubrid Snakes: Evidence From Nuclear And Mitochondrial Gene Phylogenies, Z. T. Nagy, U. Joger, M. Wink, F. Glaw & M. Vences, 2003/11/03
- Competition And Predation In Simple Food Webs: Intermediately Strong Trade-Offs Maximize Coexistence, R. H. R. Lambers & U. Dieckmann, 2003/11/03
- Open-Access Publishing: The Debate Continues, R. Lane - richard.lanelancet.com, 2003/11/05
- Molecular Electronic Device Shows Promise, 2003/11/05, ScienceDaily & Northwestern Univ.
- Gender Differences In Brain Response To Pain, 2003/11/05, ScienceDaily & Univ. Of Calif. -Los Angeles
- World's Most Alkaline Life Forms Found Near Chicago, 2003/11/05, ScienceDaily & Geol. Soc. Of Amer.
- Exercise, Not Diet, May Be Best Defense Against Heart Disease, 2003/11/05, ScienceDaily & Center For The Adv. Of Health
- Fertilized To Death , Nicola Nosengo, 30 October 2003, Vast quantities of nitrogen being poured onto farmers' fields are wreaking havoc with our forests.
Nature 425, 894 - 895 , DOI: 10.1038/425894a
- Clinical Proteomics: Written In Blood , Lance A. Liotta, Mauro Ferrari, Emanuel Petricoin, 30 October 2003, Nature 425, 905 , DOI: 10.1038/425905a
- Medical Technology: Balancing The Unbalanced , Frank Moss, John G. Milton, 30 October 2003, Nature 425, 911 - 912 , DOI: 10.1038/425911a
- Knowledge Representation For Information Integration, M. -C. Rousset - marie-christine.roussetlri.fr, C. Reynaud, Mar. 2004, DOI: 10.1016/S0306-4379(03)00032-2
- A Relatively Promising Counterinsurgency War: Assessing Progress in Iraq, Michael E. O'Hanlon, October 29, 2003, Brookings, House Armed Services Committee
- A Neurobiological Theory Of Meaning In Perception Part I: Information And Meaning In Nonconvergent And Nonlocal Brain Dynamics, W. J. Freeman - wfreemansocrates.berkeley.edu, Sep. 2003, DOI: 10.1142/S0218127403008144
- A Neurobiological Theory Of Meaning In Perception Part II: Spatial Patterns Of Phase In Gamma EEGs From Primary Sensory Cortices Reveal The Dynamics Of Mesoscopic Wave Packets, W. J. Freeman - wfreemansocrates.berkeley.edu, Sep. 2003, DOI: 10.1142/S0218127403008156
- A Nonlinear Dynamics Perspective Of Wolfram's New Kind Of Science Part II: Universal Neuron, L. O. Chua, V. I. Sbitnev & S. Yoon, Sep. 2003, DOI: 10.1142/S0218127403008041
- Complex Dynamical Behaviors Of The Chaotic Chen's System, T. Zhou - tszhoumath.tsinghua.edu.cn, Y. Tang & G. Chen, Sep. 2003, DOI: 10.1142/S0218127403008089
- Rhythmic Activity Of Noisy Neural Circuits, D. Postnov - postnovchaos.ssu.runnet.ru, O. Sosnovtseva & D. Setsinsky, Sep. 2003, DOI: 10.1142/S0219477503001373
& INTERACTION: Evolutionary Substrates of Communication,
Signaling, and Perception in the Dynamics of Social
Complexity, London, UK, 03/10/08-10
Semantic Web and Language Technology - Its Potential and
Practicalities, Bucharest, Romania,
2003, 7th European Conference on Artificial
Life, Dortmund, Germany,
LeBaron's Archive of Daily Video
Commentary, Ongoing Since February
International Conference Bifurcation
2003, Univ. Southampton, UK, 27-30
Santa Fe Institute President About His Vision for SFI's
Future Role, (Video, Santa Fe, NM,
1st Intl Symp on Fluctuations and
Noise, Santa Fe, NM,
Sackler Colloquium on Mapping Knowledge
Domains, Video/Audio Report,
and Surprise: Questions on Working with the Unexpected and
Unknowable, The University of Texas
Austin, Texas USA, 2003/04/10-12
Trends In Industrial Partnership And Innovation Management
At European Research Laboratories,
CERN, Geneva, 2003/03/19 (with webcast)
Streamed videos of Archived Lectures and Live
Ann Intl Conf, Soc f Chaos Theory in Psych & Life
Sciences, Boston, MA, USA,
Value; The Good, The Bad, and The
Unknown, Financial Executives
International (FEI), 03/08/26, 5:00-6:00 p.m.
Conference & Call for Papers Announcements
Society for Cybernetics (ASC) 2003 Conference
(H.v.Foerster), Vienna, Austria, 03/11/10-15
Workshop, MIT, Cambridge, MA, 03/11/15-16
- 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
'03: 3rd IEEE International Conference on Data
Mining, Melbourne, Florida, USA, 03/11/19-22
Intl Conf on Systems Science and Systems Engineering,
Hong Kong, 03/11/25-28
International Workshop on Meta-Synthesis and Complex
System, Guangzhou, China, 03/11/29-30
Intelligence and Law, Special Issue on Electronic
Democracy, Submissions Deadline: 03/11/30
Organizational Management Conference With Ralph Stacey,
Washington, DC, 03/12/02-04
with Everett Rogers and Ralph Stacey: Bridging the Quality
Chasm Between Medical Knowledge and Clinical Practice,
Rockville, MD, 03/12/02-03
with Ralph Stacey: On Thinking and Learning About Complex
Responsive Processes, Rockville, MD, 03/12/03-04
- Intl Wkshp Networks
of Interacting Machines: Industrial Production Systems and
Biological Cells, Berlin, Germany, 03/12/11-13
International Workshop on the Mathematics and Algorithms of
Social Insects, Georgia Tech, Atlanta, Georgia, USA;
WSEAS Intl Conf on Non-linear Analysis, Non-linear
Systems and Chaos, Athens, Greece, 03/12/29-31
Physical, Biological and Social Systems, MIT,
Cambridge, MA, 04/01/05-09
Biennial Seminar on the Philosophical, Epistemological, and
Methodological Implications of Complexity Theory,
Havana, Cuba, 04/01/07-10
Western Simulation MultiConference (WMC'04), San Diego,
CA., USA, 04/01/18-24)
International Workshop on Biologically Inspired Approaches to
Advanced Information Technology, Lausanne, Switzerland,
- Leadership in
Rapidly Changing Business Environments -Learning and Adapting
in Time, Cambridge, MA, 04/02/26-27
Intl ICSC Symposium Engineering Of Intelligent Systems (EIS
2004), Island of Madeira, Portugal, 04/02/29-03/02
Physik sozio-ökonomischer Systeme Jahrestagung
(AKSOE), Regensburg, Germany, 04/03/08-12
Science 2004, Washington, 04/03/20-21
2004, "Complexity and Fractals in Nature", 8th Intl
Multidisciplinary Conf, Vancouver, Canada, 04/04/04-07
9th IEEE Intl Conf on Engineering of Complex
Computer Systems, Florence, Italy, 04/04/14-16
Advanced Simulation Technologies Conference (ASTC'04),
Arlington, VA., USA, 04/04/18-22
Vulnerability and Network Failure: Constructions and
Experiences of Emergencies, Crises and Collapse,
Manchester, UK, 04/04/29-30
International Conference on Complex Systems (ICCS2004),
Boston, MA, USA, 04/05/16-21
- 3rd Intl Conf
on Systems Thinking in Management (ICSTM 2004) "Transforming
Organizations to Achieve Sustainable Success",
Philadelphia, Pa, USA, 04/05/19-21
Annual Workshop on Economics and Heterogeneous Interaction
Agents (WEHIA04),, Kyoto, Japan, 2004/05/27-29
International Symposium on HIV & Emerging Infectious
Diseases, Toulon, France, 04/06/03-05
- From Animals To
Animats 8, 8th Intl Conf On The Simulation Of
Adaptive Behavior (SAB'04), Los Angeles, USA,
World Multi-Conference on Systemics, Cybernetics and
Informatics, Orlando, Florida, USA, 04/07/18-21
Summer Simulation MultiConference (SummerSim'04), San
Jose Hyatt, San Jose, California, 04/07/25-29
2004, 4th International Workshop on Ant Colony
Optimization and Swarm Intelligence, Brussels, Belgium,
Intl Conf on the Simulation and Synthesis of Living Systems
(ALIFE9), Boston, Massachusetts, 04/09/12-15
8th Intl Conf on Parallel Problem Solving from
Nature (PPSN VIII), Birmingham, UK, 04/09/18-22
Brazilian Symposium on Artificial Intelligence, Sao
Luis, Maranhao - Brazil, 04/09/22-24
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