OBJECTIVE To analyze left ventricle performance after myocardial revascularization associated to ventricular geometrics restoration by "pacopexy" in schemic myocardiopathy patients with significant ventricular dysfunction in whom ventricular restoration was obtained through special technique. METHODS Myocardial revascularization associated to ventricular geometrics restoration through special...

in this work, we present firstly a study based on the calculation of the local spin densities of radical cations, which is known as a good measure of reactivity for coupling reactions, to obtain a theoretical basis for the one-step formation of poly(3.6-carbazole) and derivatives. then we detail a dft theoretical study of the geometric and electronic properties of oligomers based on carbazole a...

Using order relations on the space of fuzzy numbers, we define the levels of fuzzy number valued mappings and we present some topologicals and geometrics properties. We use this concept to locate points and the set of points that solve a problem of fuzzy optimization. Consequently we obtain a necessary condition, for means of fuzzy integrals, for fuzzy global optimality.

Su Zhang 1,2, Liangyun Liu 1,*, Xinjie Liu 1 and Zefei Liu 1,3 1 Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China; [email protected] (S.Z.); [email protected] (X.L.); [email protected] (Z.L.) 2 University of Chinese Academy of Sciences, Beijing 100049, China 3 College of Geometrics, Xi’an University of ...

the probability density functions fitting to the discrete probability functions has always been needed, and very important. this paper is fitting the continuous curves which are probability density functions to the binomial probability functions, negative binomial geometrics, poisson and hypergeometric. the main key in these fittings is the use of the derivative concept and common differential ...

the miscible displacement process appears to be an increasingly feasible method for the extraction of oil from depleted reservoirs. how­ever, there is a lack of fundamental understanding of how fracture geometrical characteristics impact the oil recovery efficiency in this type of enhanced oil recovery technique. in this work, a series of experimental tests were conducted whereby the n-heptane ...