The development of systems in which pluripotent haemopoietic stem cells and committed progenitors proliferate and differentiate in vitro has allowed the analysis of factors involved in the regulation of norrnal haemopoiesis (Bradley and Metcalf, 1966; Pluznik and Sachs, 1966; Axelrad et al., 1974; Stephenson et al., 1971; Dexter and Testa, 1976) and of events associated with leukemia, both in e...

The role of growth factors in promoting the survival, proliferation and development of multipotent haemopoietic stem cells and their more developmentally restricted progeny has been unequivocally established using short-term in vitro clonogenic culture systems (Fauser and Messner, 1979; Johnson, 1984; Toogood et al., 1980). In other culture systems, however, haemopoiesis occurs in the absence o...

several characterizations of marshall-olkin generalized distributions, introduced by gui (2013) and by al-saiari et al. (2014) are presented. these characterizations are based on: (i) a simple relationship between two truncated moments ; (ii) the hazard function.

In this paper, we discuss a new generalization of univariate skew-Cauchy distribution with two parameters, we denoted this by GSC(&lambda1, &lambda2), that it has more flexible than the skew-Cauchy distribution (denoted by SC(&lambda)), introduced by Behboodian et al. (2006). Furthermore, we establish some useful properties of this distribution and by two numerical example, show that GSC(&lambd...

We introduce the notion of quasi-cyclic-noncyclic pair and its relevant new notion of coincidence quasi-best proximity points in a convex metric space. In this way we generalize the notion of coincidence-best proximity point already introduced by M. Gabeleh et al cite{Gabeleh}. It turns out that under some circumstances this new class of mappings contains the class of cyclic-noncyclic mappings ...

Smart grid concept is introduced to modify the power grid by utilizing new information and communication technology. Smart grid needs live power consumption monitoring to provide required services and for this issue, bi-directional communication is essential. Security and privacy are the most important requirements that should be provided in the communication. Because of the complex design of s...

The notion of smooth biproximity space  where $delta_1,delta_2$ are gradation proximities defined by Ghanim et al. [10]. In this paper, we show every smooth biproximity space $(X,delta_1,delta_2)$ induces a supra smooth proximity space $delta_{12}$ finer than $delta_1$ and $delta_2$. We study the relationship between $(X,delta_{12})$ and the $FP^*$-separation axioms which had been introduced by...