The likelihood of a crash or crash potential is significantly affected by short-term turbulence of traffic flow. For this reason, crash potential must be estimated on a real-time basis by monitoring the current traffic condition. In this regard, a probabilistic real-time crash prediction model relating crash potential to various traffic flow characteristics which lead to crash occurrence, or “c...

We study consequences of regulatory interventions in limit order markets that aim at stabilizing the market after an occurrence of a "flash crash". We use a simulation platform that creates random arrivals of trade orders, that allows us to analyze subtle features of liquidity and price variability under various market structures. The simulations are performed under continuous double-auction mi...

The rare species Lymnastis novikovi Michailov, 1998, described from the single female specimen collected in Ukraine, is redescribed on the basis of new material. We provide the illustrations of the general habitus, the median lobe and its internal sac and describe the habitat of L. novikovi, to increase information about this species. A key to European Lyinastis species is given. The current di...

sperm cells are one of the most stellar and fas-cinating cells in all species. one of the most distinctive characteristic of these cells is their movement dynamics which can be observed through a light microscope. the first paper regarding sperm cell biology that appeared on pubmed was pres-ented by dr. w.f. whitney (1). there, he showed the staining properties of spermatozoa and it was publish...

Ameroseius is the largest genus of the mite family Ameroseiidae (Mesostigmata), with a worldwide distribution. Ameroseius norvegicus Narita, Abduch & Moraes n. sp. is described based on the morphology of adult females collected from litter in a strawberry field, in Norway. The new species is most similar to Ameroseius ulmi Hirschmann. A key is provided to separate them as well as other similar ...

Naturally, deformed rocks commonly contain crack arrays (joints) forming patterns with systematic relationships to the large-scale deformation. Kinematically, joints can be mode-1, -2 or -3 or combinations of these, but there is no overarching theory for the development of the patterns. We develop a model motivated by dislocation pattern formation in metals. The problem is formulated in one dim...

We extend the mechanism for noise-induced phase transitions proposed by Ibañes et al. [Phys. Rev. Lett. 87, 020601 (2001)] to pattern formation phenomena. In contrast with known mechanisms for pure noise-induced pattern formation, this mechanism is not driven by a short-time instability amplified by collective effects. The phenomenon is analyzed by means of a modulated mean field approximation ...