our  previous  studies demonstrated  the  preventive effect  of  nigella  sativa  extract  on asthma and water-soluble substances of this extract, especially its methanol fraction were responsible for this relaxation on contracted tracheal chains of guinea pigs. for the first time, the present study has been conducted to determine the main constituents of its methanolic extract. four constituen...

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We present an approach to constituent parsing, which is driven by classifiers induced to minimize a single regularized objective. It is the first discriminatively-trained constituent parser to surpass the Collins (2003) parser without using a generative model. Our primary contribution is simplifying the human effort required for feature engineering. Our model can incorporate arbitrary features ...

In this work, we analyze, from the numerical point of view, a problem including mixture made MGT viscoelastic solid and an elastic solid. The corresponding variational is linear system composed two coupled hyperbolic equations written in terms acceleration first constituent velocity second one. Then, fully discrete approximations are introduced by using finite element method implicit Euler sche...

We apply a dynamical three-constituent quark light-front model to study the proton. The dynamics is based on notion of diquark (bound or virtual) as dominant interaction channel, which paramaterizes contact between quarks in order build three-body Faddeev Bethe-Salpeter equations for valence state, and we focus totally symmetric part wave function. Dirac electromagnetic form factor used fix par...

In this work, we revisit Boltzmann’s distribution function, which, together with the Boltzmann equation, forms basis for kinetic theory of gases and solutions to problems in hydrodynamics. We show that magnetic fields may be included as an intrinsic constituent function by theoretically motivating, deriving analyzing its complex-valued version most general form. then validate these consideratio...

We apply the method of flow equations to describe quantum systems subject a time-periodic drive with time-dependent envelope. The driven Hamiltonian is expressed in terms its constituent Fourier harmonics amplitudes that may vary as function time. time evolution system described phase-independent effective and complementary micromotion operator are generated by deriving solving equations. These...

Jacobian-free Newton–Krylov (JFNK) methods are synergistic combinations of Newton-type methods for superlinearly convergent solution of nonlinear equations and Krylov subspace methods for solving the Newton correction equations. The link between the two methods is the Jacobian-vector product, which may be probed approximately without forming and storing the elements of the true Jacobian, throug...

The introduction of extra dimensions is an invaluable strategy for the unification gravity with other physical fields. Nevertheless, matter in hand to be eventually reduced actual 4D spacetime. Kaluza-Klein theory no exception this well-known scheme. There are two procedures obtain field equations from a higher dimensional action. One can either take variation effective action that dimension an...