Group electronegativities, which take into account the influence of chemical environment, are calculated. Equilibrium electronegativity is defined on the basis of group electronegativity. Using relative bond lengths and equilibrium electronegativies, we create a novel semiempirical topological descriptor, Nt. A quantitative structure-property relationship (QSPR) model is subsequently developed ...

Let Mt be an isoparametric foliation on the unit sphere (Sn−1(1), gst) with d principal curvatures. Using spherical coordinates induced by Mt, we construct a Minkowski norm representation $$F = r\sqrt {2f(t)} $$ , which generalizes notions of (α, β)-norm and (α1, α2)-norm. technique local frame, give exact explicit answer to question when really defines norm. similar technique, study Hessian is...

n-terminal pro β-type natriuretic peptide (nt-probnp) is a valuable marker for monitoring the response to treatment in patients with heart failure. based on the clinically observed improvement of heart failure symptoms early after cardiac resynchronization therapy (crt), we sought to investigate whether crt induce any significant reduction in the plasma level of nt-probnp in three days after im...

A feeding trial has been conducted to evaluate the effects of dietary nucleotide (NT) on growth performance and stress resistance of fry kutum (Rutilus kutum Kamenskii, 1901). A basal diet supplemented with 0 (control), 0.3, 0.5 and 0.7 g NT kg-1 have been formulated for four experimental diets. After 8 weeks of feeding trial, growth parameters were evaluated and then fish has exposed to osmoti...

The objectives of this research were (1) to analyze the variations of the permeability of dentin after restoration with two polyacid-modified resin composites (Compoglass, Dyract) and four single-bottle adhesives (Prime & Bond 2.0, Syntac Single Component, OptiBond Solo, and Single Bond--Scotch Bond 1 in Europe--immediately (approximately 1 hour) after insertion. A perfusion system with distill...

By application of modern recombinant DNA technology, especially the polymerase chain reaction (PCR)/dot-blot hybridization techniques, we have investigated the molecular basis of β-thalassemia from four different regions of Iran: central, south-east, south and north. In this study, the DNA samples were isolated from patients and for the identification of the mutations, the 6 oligonucleotide...

OBJECTIVES Dentin Bonding Agents (DBAs) have been proposed as root-end filling materials. This study examined the effect of polymerized DBAs on human monocyte viability. STUDY DESIGN Monocytes were directly isolated from peripheral blood and being exposed to cured Scotch bond I (Single Bond) and Prime & Bond in different time intervals (36 and 72 hours). The viability of monocytes was determi...

Pulmonary hypertension (PH) is an important cause of heart failure in chronic obstructive pulmonary disease (COPD). The pro brain natriuretic peptide N-terminal (NT-proBNP) has been suggested as a noninvasive marker to evaluate ventricular function. However, there is no evidence to support the use of NT-proBNP in monitoring the benefits of vasodilators in COPD induced PH. Thus, we used NT-proBN...