Introduction. It is shown in [4] that there is an infinite family of semifree Zm actions on odd dimensional homotopy spheres. There is also an infinite family of semifree S actions on odd dimensional homotopy spheres (see [2], [5]). On the other hand, it is announced in [2] that there are only finitely many inequivalent semifree S actions on even dimensional homotopy spheres. Hence it is intere...

studying real as well as imagery spatiality of family roles and image of them for family members should be put among first steps of any architectural design program that aims to achieve in stabilizing of family pattern of a certain culture. its importance is more obvious for those cultures which want to save family structure as their basis of existence and growth. a literature review of current...

family is a widespread social institution that understanding of the early universe and its phenomena through it. it seemed that family and its intrafamily relationships have changed these years and shaped as a new form. iranian cinema by creating stereotypes of relationships, personality and positions have an important role in iranian people mental construction of family and its relations. in t...

Recall that two ergodic probability measure preserving (p.m.p.) actions σi for i = 1, 2 of two countable groups Γi on probability measure standard Borel spaces (Xi, μi) are orbit equivalent (OE) if they define partitions of the spaces into orbits that are isomorphic, more precisely, if there exists a measurable, almost everywhere defined isomorphism f : X1 → X2 such that f∗μ1 = μ2 and the Γ1-or...

The Drugs Rules, 1945, framed under the Drugs Act, 1940, are more or less an exact replica of the Statutory Rules and Orders made under the Therapeutic Substances Act of Great Britain. The question of the differences in susceptibility and reactivity of laboratory animals in India and England has not been taken into consideration. Taylor and Ahuja (1935) reported that ' White mice bred in Kasaul...

In this work we deal with actions of vector groupoid which is a new concept in the literature‎. ‎After we give the definition of the action of a vector groupoid on a vector space‎, ‎we obtain some results related to actions of vector groupoids‎. ‎We also apply some characterizations of the category and groupoid theory to vector groupoids‎. ‎As the second part of the work‎, ‎we define the notion...