Bacteria isolated from an outbreak with moderate mortalities in farmed sole, Solea senegalensis (Kaup), in the south of Spain were identified as Vibrio harveyi and V. parahaemolyticus. Only bacterial strains showing swarming were virulent in sole and caused mortalities in experimentally inoculated fish. However, the signs of the disease were only reproduced with V. harveyi. The intramuscular in...

By applying a special Bäcklund transformation, a general variable separation solution for the (2+1)-dimensional higher-order Broer-Kaup system is derived. In addition to some types of the usual localized excitations, such as dromions, lumps, ring solitons, oscillated dromions and breathers, soliton structures can be easily constructed by selecting arbitrary functions appropriately. A new class ...

PACS : 02.30.J, 11.10.E; MSC : 35L65, 35L70, 35Q35, 58F05, 58F07 keywords: Lagrangian, metrics of constant curvature, Hamiltonian structure, reciprocal transformation, Poisson brackets. Abstract. In this article we present a Lagrangian representation for evolutionary systems with a Hamiltonian structure determined by a differential-geometric Poisson bracket of the first order associated with me...

In this article, we study for the first time stochastic Kaup–Newell equation in birefringent fibers. Three integration algorithms are applied, namely, unified Riccati expansion method, addendum to Kudryashov's and modified sub‐ODE method. Many types of optical soliton solutions such as Jacobi‐elliptic function solutions, Weierstrass elliptic bright solitons, dark singular periodic obtained. Num...

To date no technique for validating crowd control models has been proposed. Usually subject matter experts “look at” the simulations and decide if what they are observing “appears” reasonable or not. One reason for this has been inability to gather quantitative data from either actual crowd footage or simulations of crowds. Since this problem is being solved by Kaup et al, it now becomes possib...