We review the most general scalar-tensor cosmological models with up to second-order derivatives in the field equations that have a fixed spatially flat de Sitter critical point independent of the material content or vacuum energy. This subclass of the Horndeski Lagrangian is capable of dynamically adjusting any value of the vacuum energy of the matter fields at the critical point. We present t...

Ever since its description, anterolateral ligament (ALL) of the knee joint remains as the hotspot of controversies.Though it has been described under various descriptions, the structure gained its limelight when it was christenedas anterolateral ligament by Claes in 2013. The main reason for the controversies around it is the lack of concreteevidences regarding its attachments...

A modification of the generalized shift-splitting (GSS) method is presented for solving singular saddle point problems. In this kind of modification, the diagonal shift matrix is replaced by a block diagonal matrix which is symmetric positive definite. Semiconvergence of the proposed method is investigated. The induced preconditioner is applied to the saddle point problem and the preconditioned...

extract  skillful management role in the success of any profession is clear. nursing as profession is no exception to this fact. also nursing mission and role in human life are heavier and require more complex management skills .   evening and night shift nursing supervisor are employed by a health care institution such as a hospital in the absence of nursing management must have knowledge and ...

purpose: to report the refractive changes after intraocular lens (iol) implantation in children with congenital and developmental cataract. methods: in this historical cohort study, the clinical records of children between 2 and 15 years old that had lensectomy with posterior capsulotomy, anterior vitrectomy and iol implantation with more than 5 years of follow-up were studied. refractive error...

Where L is the luminosity in units 10cm s s , r is the beam aspect ratio at the collision point, Ebeam the beam energy in GeV, v the beam-beam tune shift parameter, ? v the beta function at collision point and Ibeam is the average single beam current in amperes. Our strategy for increasing L is described in reference [1]; here we will reiterate the main points. Provided the single bunch current...

We study the period doubling renormalization operator for dynamics which present two coupled laminar regimes with two weakly expanding fixed points. We focus our analysis on the potential point of view, meaning we want to solve V = R(V ) := V ◦ f ◦ h+ V ◦ h, where f and h are naturally defined. Under certain hypothesis we show the existence of a explicit “attracting” fixed point V ∗ forR. We ca...

In speeded two-choice tasks, optimal performance is prescribed by the drift diffusion model. In this model, prior information or advance knowledge about the correct response can manifest itself as a shift in starting point or as a shift in drift rate criterion. These two mechanisms lead to qualitatively different choice behavior. Analyses of optimal performance (i.e., Bogacz et al., 2006; Hanks...

Recently, a new image appearance model, designated iCAM06, was developed for High-Dynamic-Range (HDR) image rendering. The dynamic range of a HDR image needs to be mapped on the range of output devices, which is called the tone reproduction or tone mapping. The iCAM06, the representative HDR rendering algorithm also uses the tone compression for image reproduction on the dynamic range of output...