health systems, particularly those in low- and middle-income countries (lmics), need stronger management and leadership capacities. management and leadership are not synonymous, yet should be considered together as there can be too much of one and not enough of the other. in complex adaptive health systems, the multiple interactions and relationships between people and elements of the system me...

hepatitis c virus (hcv) is an important agent causing chronic liver infection, which often leads to liver cirrhosis and lethal hepatocellular carcinoma (hcc). at present, there is no effective hcv vaccine for prevention of hepatic disease and the standard treatment is neither economical nor fully effective in all the patients. however, vaccination based on structural and nonstructural proteins ...

The Counseling System is the one of the basis on which all social and political affairs are presented and investigated through public and political consultation in the form of discussions and free conversations. In the Counseling system, it is the public wisdom and agreement that leads to the selection and determination of rulers, social and political constructs and institutions, codifying and ...

In the linear system Ax = b the points x are sometimes constrained to lie in a given subspace S of column space of A. Drazin inverse for any singular or nonsingular matrix, exist and is unique. In this paper, the singular consistent or inconsistent constrained linear systems are introduced and the effect of Drazin inverse in solving such systems is investigated. Constrained linear system arise ...

In this manuscript, we introduce  a new class of fuzzy problems, namely ``fuzzy inclusion linear systems" and   propose a fuzzy solution set for it. Then, we present a theoretical discussion about the relationship between  the fuzzy solution set of a  fuzzy inclusion linear system and the algebraic solution of a fuzzy linear system. New necessary and sufficient conditions are derived for obtain...