Crocin, a component of saffron, showed hypotensive which is perhaps due to vascular smooth muscle relaxant effect. The relaxant effects of saffron on tracheal smooth muscle also could be due to its constituent, crocin. In the present study, the relaxant effects of crocin and its possible mechanisms on rat tracheal smooth muscle were investigated. The relaxant effects of three cumulative concent...

abstract in this paper, income per capita convergence hypothesis is tested in selected oic countries. for this purpose, we use the time series model and univariate kpss stationary test with multiple structural breaks (carrion-i-silvestre et al. (2005)) over the period 1950-2008. the results show that most oic countries could not catch up toward usa. although because of some positive term of tra...

This work provides a numerical investigations of propagating vortex flow states (pVs) for ferrofluidic Couette with small aspect ratio and fixed non-rotating end-walls. The system is subjected to oblique magnetic fields as superposition axial transverse orientated fields. Such field configuration breaks the basic symmetries renders all structures be inherently three-dimensional complexer dynami...

In this paper we introduce a new method called the Dirac Assisted Tree (DAT) method, which can handle 1D heterogeneous Helmholtz equations with arbitrarily large variable wave numbers. DAT breaks an original global problem into many parallel tree-structured small local problems, are linked together to form solution by solving linking problems. To solve problems in DAT, propose compact finite di...

The unit root test proposed by Ranjbar et al. (2018) was examined for an alternative of stationary asymmetric exponential smooth transition autoregressive (AESTAR) under structural breaks. situation that stands out as a deficiency in the mentioned study model does not includes zero-mean structure taken into account. On contrary, features should also had been explained. Because time-varying dete...

Hybrid (and impact) systems are dynamical experiencing both continuous and discrete transitions. In this work, we derive necessary sufficient conditions for when a given differential form is invariant, with special attention paid to the case of existence invariant volumes. Particular impact where dynamics Lagrangian subject nonholonomic constraints. A celebrated result volume-preserving Poincar...

‎In this paper‎, ‎we introduce the structure of a groupoid associated to a vector field‎ ‎on a smooth manifold‎. ‎We show that in the case of the $1$-dimensional manifolds‎, ‎our‎ ‎groupoid has a‎ ‎smooth structure such that makes it into a Lie groupoid‎. ‎Using this approach‎, ‎we associated to‎ ‎every vector field an equivalence‎ ‎relation on the Lie algebra of all vector fields on the smooth...

background: fatigue is one of the most common symptoms in primary care that adversely affects work, family life, and social relations. the purpose of this study was to survey the relationship between work schedule and fatigue among the emergency personnel of isfahan, iran using the checklist individual strength (cis) standard method in 2010. methods: this cross-sectional study was performed on ...