The varieties RA of relation algebras and DA of dynamic algebras are similar with regard to definitional capacity, admitting essentially the same equational definitions of converse and star. They differ with regard to completeness and decidability. The RA definitions that are incomplete with respect to representable relation algebras, when expressed in their DA form are complete with respect to...

In order to protect the network and evaluate the network security risks automatically, a new multi-agents risk assessment model based on attack graph (MRAMBAG) is presented. First, a network risk assessment model with master-slave agents is established, especially the functional architecture of master-slave agents and the risk association relation analysis process are designed. Then, the attack...

da is a memory of iraqi war against iran. this narration of war is a representation of young girl life that had a significant role in her own time. this book challenges masculinity of war and passes out gender as a limitation. the important narration of war, mentioned in da, has been associated with 150 republication and these elements confirm research on da. this article tries to attempts to a...

Introduction Standardized instruments have been increasingly used in the psychiatric assessment of children and adolescents in clinical and research settings. There are many instruments with different characteristics which vary according to their purposes such as diagnostic formulation, identification of symptoms, on the assessment of personality and emotional dynamics or cognitive development....

nowadays, as a result of increased terrorist and bomb attacks throughout the globe in the vicinity of strategic buildings, designing these structures against impact loads, particularly the blast-related ones, has been taken into more consideration. the current procedure for designing the structure against an explosion is a design against the local failure of the current elements in the first st...

A noncollision packet reservation multiple access with dynamic allocation (NC-PRMA/DA) scheme is proposed and investigated as a suitable candidate protocol for wireless multimedia communications. Access requests of the existing users in NC-PRMA/DA are conveyed to the base station (BS) in a noncollision manner by using a time-frequency signaling scheme. In addition, the Scheduling NC-PRMA/DA (SN...

The 2008 National Research Council report "Phthalates and Cumulative Risk Assessment: Tasks Ahead," rejected the underlying premises of TEQ-like approaches - e.g., chemicals are true congeners; are metabolized and detoxified similarly; produce the same biological effects by the same mode of action; exhibit parallel dose response curves - instead asserting that cumulative risk assessment should ...

Preclinical assessment of pain has increasingly explored operant methods that may allow behavioral assessment of ongoing pain. In animals with incisional injury, peripheral nerve block produces conditioned place preference (CPP) and activates the mesolimbic dopaminergic reward pathway. We hypothesized that activation of this circuit could serve as a neurochemical output measure of relief of ong...

Proper dynamic equation constraints in data assimilation (DA) systems can help improve balance of analyzed atmospheric state. The formulation of ensemble-variational DA algorithms allows for easy incorporation of such constraints, but their impacts within such DA systems have been little studied. A dynamic constraint based on the steady momentum equations is incorporated into the WRF (Weather R...

PURPOSE Bilingual children are often diagnosed with language impairment, although they may simply have fewer opportunities to learn English than English-speaking monolingual children. This study examined whether dynamic assessment (DA) of word learning skills is an effective method for identifying bilingual children with primary language impairment (PLI). METHOD Fifteen 4- and 5-year-old pred...