in this paper, we extend some propositions of banachalgebras into module actions and establish the relationships betweentopological centers of module actions. we introduce some newconcepts as                         -property and -property for banach modules and obtain some conclusions inthe topological center of module actions and arens regularity of banachalgebras.

let $h$ be a hopf algebra and $a$ an $h$-bimodule algebra‎. ‎in this paper‎, ‎we investigate gorenstein global dimensions for hopf‎ ‎algebras and twisted smash product algebras $astar h$‎. ‎results from‎ ‎the literature are generalized‎.

in this paper, some categorical properties of the category ${bf cpo}_{{bf act}text{-}s}$ of all {cpo $s$-acts}, cpo's equipped with actions of a monoid $s$ on them, and strict continuous action-preserving maps between them is considered. in particular, we describe products and coproducts in this category, and consider monomorphisms and epimorphisms. also, we show that the forgetful functor from...

arising of loss entitles the third party to the compensation. in this respect, more often than not, the entitlement of the third party finds its justification based on voluntary principles and sometimes based on involuntary ones. if the third party cannot find defense based on voluntary principles, he or she has to resort to involuntary ones. the possibility of multiple compensation methods cou...

one of the significant dimensions of human’s social growth is his moral development. the human being not only is a rational and intellectual being, but also is a moral being. his morality has its origin in his sociability. the human being not only is self-centered and concerned about his own interests and well-being, but also is concerned about others’ interests and their judgment of his action...

background: up to today, the most complete risk assessment tool for repetitive movements of upper limbs has been the occupational repetitive actions (ocra) method. the index of the analysis is relatively accurate. several risk factors such as repeated motion, force, body condition, additional effective factors and return period can be useful for future preventive measures. the present study eva...