Modeling in ecol ogy or epidemiol ogy gener all y opposes tw o classes of models, Equa tion Based Models and Agent Based Models. Mathema tical models all ow predicting the longterm dynamics of the studied systems. How ever, the variability betw een individ uals is difficul t to represen t, wha t makes these more suitable models for larg e and homog eneous popula tions. Mul ti-agent models all o...

THE US AIR FORCE has a co­ he sion problem. Dr. Donald B. Rice, former secre tary of the Air Force, complained that offi cers identi fied with their weapon systems, not with the Air Force or any concept of service mission or doctrine. Carl Builder agrees. To Builder, the Air Force has no strong, unify ing mission or vi­ sion, so loyalty has devolved to functions, tech nolo gies, and occu pa tio...

The ex ca va tion at Klissoura was planned in 1992, as a joint-pro ject be tween the Ephoreia of Palaeoanthropology and Spe le ol ogy of the Min is-try of Cul ture of Greece and the In sti tute of Ar-chae ol ogy of the Jagiellonian Uni ver sity of Kra-ków, Po land. Our pri mary goal was to in ves ti gate the cir cum stances un der which the neolithisation of NW Peloponnese came about. For this ...

Poroelastography has been re cently in tro duced as a new elastographic tech nique that may be used to de scribe the spa tial and tem po ral be hav ior of poroelastic ma te ri als. The ex per i men tal meth od ol ogy pro posed thus far for phan toms and tis sues in vi tro re quires the ac qui si tion of a precompression rf frame, the ap pli ca tion of a unit step strain com pres sion to the sam...

This paper proposes a comprehensive approach for dealing with assimilation of innovative technology. The need for structural adaptation of the organizati on i n support of activities to manage adopti on and impl ementation i s model ed by both associative and causal expl anatory model s. Assimil ation success is studied as both a social and a technical construct. Results include: (1) success as...

Based on the invariance principle of differential equations a simple, systematic, and rigorous feedback scheme with the variable feedback strength is proposed to stabilize nonlinearly any chaotic systems without any prior analytical knowledge of the systems. Especially the method may be used to control near-nonhyperbolic chaotic systems, which although arising naturally from models in astrophys...

Deg ra da tion of natu ral re sources has be come a global prob lem that threat ens the live li hood of mil lions of poor peo ple. Many prom is ing tech nolo gies for natu ral re source man age ment are avail able to ad dress these prob lems, but farm ers and oth ers of ten fail to adopt them. Why is this? Al though many fac tors can be iden ti fied, lack of se cure prop erty rights and col lec...

We investigated numerically an Ising model coupled to two-dimensional Euclidean gravity with spherical topology, using Regge calculus with the dl=l path-integral measure to discretize the gravita-tional interaction. Previous studies of this system with toroidal topol-ogy have shown that the critical behavior of the Ising model remains in the at-space Onsager universality class, contrary to the ...

Ontologies are being used nowadays in many areas. Within the bioinformatics area there are a number of bio-ontologies that cover diierent aspects in molecular biology. Many of these ontologies contain overlapping information. In applications using multiple ontologies it is therefore of interest to be able to merge these ontologies. In this paper we describe a prototype implementation of an onto...

The presented evolutionary algorithm is especially designed to generate recurrent neural networks with non trivial internal dynam ics It is not based on genetic algorithms and sets no constraints on the number of neurons and the architecture of a network Network topol ogy and parameters like synaptic weights and bias terms are developed simultaneously It is well suited for generating neuromodul...