Synchronized firings in the networks of class 1 excitable neurons with excitatory and inhibitory connections are investigated, and their dependences on the forms of interactions are analyzed. As the forms of interactions, we treat the double exponential coupling and the interactions derived from it: pulse coupling, exponential coupling, and alpha coupling. It is found that the bifurcation struc...

In the companion paper (Towards a “sophisticated” model of belief dynamics. Part I), a general framework for realistic modelling of instantaneous states of belief and of the operations involving them was presented and motivated. In this paper, the framework is applied to the case of belief revision. A model of belief revision shall be obtained which, firstly, recovers the Gärdenfors postulates ...

2. COOK, M. K., ANDREWS, B. E., I?ox, H. H., TURNER, H. C., HAMES, W. D., and CHANOCK, R. M., Am. J. Hyg. 69, 250-264 (1959). 3. ROTT, R., REDA, I. M., and SCHAFER, W., Z. Naturforsck. 18b, 188-194 (1963). 4. SCHHFER, W., Ciba Found. Svmp. Nature Viruses 91-103 (1957). 5. SCH;~FER, W., AND ROTT, R., 2. Naturforsck. 14b, 629-631 (1959). 6. ROTT, R., Habilitation thesis. Giessen (1962). 7. HORNE,...

We study the onset of motion of a vortex lattice in response to a driving current that is turned on suddenly. For sufficiently high currents we find that the average vortex velocity (obtained from the longitudinal voltage drop) grows smoothly with time and obeys a stretched exponential with an exponent β ~ 0.7. The response is governed by two time scales: a delay time (t0) before the appearance...

We propose a novel mobility model, named Semi-Markov Smooth (SMS) model, to characterize the smooth movement of mobile users in accordance with the physical law of motion in order to eliminate sharp turns, abrupt speed change and sudden stops exhibited by existing models. We formulate the smooth mobility model by a semi-Markov process to analyze the steady state properties of this model because...

One of the ways to model contraction functions for belief sets is epistemic entrenchment. The first step was provided by Gärdenfors in [5], who defined epistemic entrenchment and a contraction function in terms of it and related the latter with the AGM contraction function. Later Hans Rott in [16] presented an entrenchment based contraction function that does not satisfy recovery. In this paper...

In the middle of the third century BCE – some 2250 years ago – the Mauryan emperor Aśoka is thought to have directed the creation of the Brahmi script. Brahmi was used in all parts of India to write Prakrit and Sanskrit (except for the north-western regions where Kharoshthi was used to write Prakrit and Gandhari, and occasionally Sanskrit). Brahmi shows all the features found in the scripts des...

the purpose of the present study was to explore the effectiveness of raising iranian learners’ pragmatic awareness of intercultural rhetoric in enhancing their l2 writing ability, as well as their written complexity and accuracy. to this end, two 25-member groups of efl learners who were taking basic writing course at islamic azad university, roudehen branch, were selected based on their perfor...

we give an algorithm, called t*, for finding the k shortest simplepaths connecting a certain pair of nodes, s and t, in a acyclic digraph.first the nodes of the graph are labeled according to the topologicalordering. then for node i an ordered list of simple s − i paths iscreated. the length of the list is at most k and it is created by usingtournament trees. we prove the correctness of t* and ...

exceeded losses of nonstructural components from structural ones in most demolished buildings in previous earthquakes and its limitation on functionality of critical facilities and building serviceability after earthquakes should be got the point of view for accounting loss of building as a merit for building performance. this paper attempts to demonstrate the significant role of distribution p...