To the Editor: In their report on the Avoiding Cardiovascular Events through Combination Ther­ apy in Patients Living with Systolic Hypertension (ACCOMPLISH) trial, Jamerson et al. (Dec. 4 is­ sue)1 challenge current treatment recommenda­ tions for hypertension. In the study, they report­ ed that the use of combined therapy with an angiotensin­converting–enzyme (ACE) inhibitor, benazepril, plus...

We propose a non-perturbative method for defining the higher dimensional operators which appear in the Heavy Quark Effective Theory (HQET), such that their matrix elements are free of renormalon singularities, and diverge at most logarithmically with the ultraviolet cutoff. Matrix elements of these operators can be computed numerically in lattice simulations of the HQET. We illustrate our proce...

It is surprising that only about 50 years ago hypertension was considered an essential malady and not a treatable condition. Introduction of thiazide diuretics in late 50s made some headway in successful treatment of hypertension and ambitious multicenter VA co-operative study (phase 1 and 2) started in 1964 for diastolic hypertension ranging between 90 and 129 mmHg and completed by 1971 establ...

in the present work a two dimensional numerical investigation of steam flows in a turbine blade passage is performed. a finite volume approach has been used and the pressure–velocity coupling is resolved using the simple algorithm. the purpose of this paper is to find that one of the used turbulent models is better for this kind of studies. a structured mesh arrangement with boundary layer mesh...

in this research between 3-dimensional and axisymmetric modeling for movement of nano-particles in passing through a aerodynamic lens, and also between these models and famous model of wang & liu was compared. for this purpose, output of nano-particles penetration, divergence angel, and nano-particle velocity with wang & liu model was compared. geometrical model used for aerodynamic lens compar...