We study oscillations of a spaser driven by an external optical wave. When the frequency of the external field is shifted from the frequency of an autonomous spaser, the spaser exhibits stochastic oscillations at low field intensity. The plasmon oscillations lock to the frequency of the external field only when the field amplitude exceeds a threshold value. We find a region of external field am...

1 LIP6, Université Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris Cedex 05, France. [email protected] Abstract. Knowledge about forced moves enables to select a small number of moves from the set of possible moves. It is very important in complex domains where search trees have a large branching factor. Knowing forced moves drastically cuts the search trees. We propose a language an...

We propose controlled splay of artiicial columnar defects in cuprate super-conductors as a strategy to enhance transport properties in a eld compared to parallel columns. The theory predicts a new \splayed glass" phase characterized by a reduced ux creep, an entangled ground state, and an astronomically slow response to an applied transverse eld.

Intracellular signaling by which pancreatic beta-cells synthesize and secrete insulin in control of glucose homeostasis is not fully understood. Here we show that Shp2, a cytoplasmic tyrosine phosphatase possessing 2 SH2 domains, coordinates signaling events required for insulin biosynthesis in beta-cells. Mice with conditional ablation of the Shp2/Ptpn11 gene in the pancreas exhibited defectiv...

The object of considerations is a thin linear-elastic cylindrical shell having a periodic structure along one direction tangent to the shell midsurface. The aim of this paper is to propose a new averaged nonasymptotic model of such shells, which makes it possible to investigate free and forced vibrations, parametric vibrations, and dynamical stability of the shells under consideration. As a too...

When perceiving emotional facial expressions, people with autistic spectrum disorders (ASD) appear to focus on individual facial features rather than configurations. This paper tests whether individuals with ASD use these features in a rule-based strategy of emotional perception, rather than a typical, template-based strategy by considering outcome implications of these strategies. Rule-based s...

To understand the function of eukaryotic cells, it is critical to understand the role of protein-protein interactions and protein localization. Currently, we do not know the importance of global protein localization nor do we understand to what extent the cell is permissive for new protein associations - a key requirement for the evolution of new protein functions. To answer this question, we f...

Mobile agent workflow management/plugins is quite appropriate to handle control flows in open distributed system; basically it is the emerging technology which can bring the process oriented tasks to run as a single unit from diverse frameworks. This workflow technology offers organizations the opportunity to reshape business processes beyond the boundaries of their own organizations so that in...

the occupy wall street movement has presented a series of challenges to local law enforcement agencies. in response, many of them have relied on a variety of aggressive tactics, which in some cases have shocked public opinion, putting the issue of protest policing on the national agenda. three main narratives have emerged to explain these tactics: 1) there has been a broad “militarization” of t...