One aspect of this invention provides a composition capable of eliciting an immune response to an immunodeficiency virus in mammals, wherein the composition is comprised of an inactivated virus-pulsed antigen presenting cell. The NMOS device has a tensile stress layer wherein the tensile stressor layer has the shape of a polygon when viewed from the top down perspective, wherein the polygon includes a protrusion in its periphery, the protrusion extending into the recess of the first stressor layer. The embodiment further includes linking the bilingual snippet pairs of each node into a plurality bilingual snippet pairs. The gas stream includes a radioactive species. The guide plates and the link plates of the first and second link row are composed relatively rotatable to the connection pins.