(1) With larger differences in the analog values (and larger feedback error) at each iteration, we found that networks learned to transmit different chaotic attractors.
(2) To explain these contentions, the history, strengths, and limits of reductionist thinking are discussed, and aspects of chaos science, such as the butterfly effect and strange attractors, are described.
(3) The background was hotter on one side of the sky and cooler on the other: a "dipole" that meant our galaxy was moving at a phenomenal relative speed, which could only be explained if there was a huge undiscovered distant structure somewhere in space, such as a supercluster of galaxies, pulling it (this was found later and is called the "great attractor").
(4) Responses to the program may include more than one attractor.
(5) However, when electrical coupling between cells was allowed, the interactions with neighboring cells exhibiting chaotic dynamics resulted in characteristic alterations of the attractor geometry.
(6) The Lyapunov exponents and dimension of an attractor are found.
(7) The salient dynamics on the attractor can thus be completely described by the return map of a section which is a logistic interval map.
(8) Depending upon the experimental parameter values, stable attractors, various types of multiple states and sustained oscillations were shown to occur.
(9) Under certain conditions of stimulation, the attractor in the return map during chaotic activity of the single cell resembled the Lorenz tent map.
(10) Incentives or reinforcers are attractors in behavior space, at the centers of basins of lowered potential.
(11) Epigenetic regulation, as we describe it, involves positive feedback loops and promotes differentiation as it forces elements of a system to choose between two extreme levels called attractors.
(12) We describe a modified attractor neural network in which neuronal dynamics takes place on a time scale of the absolute refractory period but the mean temporal firing rate of any neuron in the network is lower by an arbitrary factor that characterizes the strength of the effective inhibition.
(13) Open processes containing and exchanging energy fluctuate between opposite states ("periodic attractors"); they are characteristic of most physiological rhythms and are exaggerated in bipolar subjects.
(14) Unambiguous evidence of attractor behaviour in delta sleep is presented.
(15) In the case of two complementary B cell clones, the chaotic attractor has a number of features in common with the Lorenz attractor.
(16) Using a time series obtained from the electroencephalogram recording of a human epileptic seizure, we show the existence of a chaotic attractor, the latter being the direct consequence of the deterministic nature of brain activity.
(17) The attractor dimension of the catalytic site in the acylated state was found to be indistinguishable from that of the substrate mobilizable conformation.
(18) A thermodynamic potential with two attractor regions, each with a local minimum, governs corneal stromal swelling.
(19) These results demonstrate that mucosal capillaries have a variable negative electrostatic charge on the endothelial surface and support the hypothesis that some vesicle diaphragms act as preferential attractors for anionic macromolecules.
(20) The solutions to this high-dimensional system of ODEs suffice to simulate the chaotic patterns of the EEG, including the normal low-level background activity, the high-level relatively coherent "bursts" of oscillation that accompany reception of input to the bulb, and a degenerate state of an epileptic seizure determined by a toroidal chaotic attractor.
Evolve
Definition:
(v. t.) To unfold or unroll; to open and expand; to disentangle and exhibit clearly and satisfactorily; to develop; to derive; to educe.
(v. t.) To throw out; to emit; as, to evolve odors.
(v. i.) To become open, disclosed, or developed; to pass through a process of evolution.
Example Sentences:
(1) The origins of aging of higher forms of life, particularly humans, is presented as the consequence of an evolved balance between 4 specific kinds of dysfunction-producing events and 4 kinds of evolved counteracting effects in long-lived forms.
(2) There is no doubt that new techniques in molecular biology will continue to evolve so that the goal of gene therapy for many disorders may be possible in the future.
(3) An analysis of recent health-policy initiatives and evolving market factors helps to explain some of these observations.
(4) One or more of the followin factors were present in the "high-risk" group: ventricular dysfunction--ejection fraction less than 0.4, preinfarction angina, evolving infarction, recent infarction (less than 2 weeks), and refractory ventricular tachyarrhythmia.
(5) The final tests that evolved from this study are simple to perform, require only 6 mul of the sample per test, and are capable of detecting microgram and, in some cases, nanogram quantities of the product.
(6) The designs of mechanical prostheses have evolved since the early caged-ball prostheses.
(7) An analysis of 54 protein sequences from humans and rodents (mice or rats), with the chicken as an outgroup, indicates that, from the common ancestor of primates and rodents, 35 of the proteins have evolved faster in the lineage to mouse or rat (rodent lineage) whereas only 12 proteins have evolved faster in the lineage to humans (human lineage).
(8) As AIDS developed, the majority of viruses evolved an extended sequence in V1 that was rich in serine and threonine residues and shared similarity with proteins modified by O-linked glycosylation.
(9) The second evolved gradually; many people contributed to its success, including Foulkes, Main and Bridger.
(10) A 24-year-old man from rural Mississippi had a case of California encephalitis (CE) that evolved as a subacute encephalomyelitis.
(11) The immune system has evolved to protect an organism from the pathogens that invade it but the effector mechanisms involved in mediating this protection are potentially lethal to the host itself.
(12) The effect of deferring immediate coronary artery bypass was evaluated in two groups of similar patients having successful direct coronary artery thrombolysis with streptokinase in the treatment of evolving myocardial infarction.
(13) Generally its evolution is slow, but some times they evolve as acute inflammatory processes.
(14) Comparison with similar studies involving B. glabrata seems to indicate that a process of adaptation between S. mansoni and B. tenagophila is evolving, the 2 organisms having reached a high degree of compatibility in a few areas.
(15) We conclude that a single, toxin-activated sodium channel population with low affinity for TTX exists at early stages, whereas a second, high-affinity population evolves with time in primary rat muscle cultures.
(16) This study includes nine patients with a megakaryoblastic crisis in chronic myeloid leukemia (CML), four with acute megakaryoblastic leukemia (AM) and three with myeloid dysplasia later evolving into overt acute leukemia.
(17) Screening studies by sonography, eventually completed by CT, are essential to discover patients with ACKD, to follow them up and propose bilateral nephrectomy if ACKD evolves towards malignancy.
(18) To address the evolving trends in the choice of transabdominal or transcervical chorionic villus sampling (CVS) at a teaching hospital and to evaluate the influence of gestational age on the approach chosen.
(19) Canadian cancer care has evolved under systems of provincial and federal fiscal control and aims to optimize the management of patients within each province.
(20) Yet, in spite of this restriction, the 2-mu plasmid of yeast has evolved an elegant mechanism which can allow it to rapidly amplify its copy number without initiating multiple rounds of replication.