This specification defines a new Session Initiation Protocol (SIP) Via header field parameter, "keep", which allows adjacent SIP entities to explicitly negotiate usage of the Network Address Translation (NAT) keep-alive mechanisms defined in SIP Outbound, in cases where SIP Outbound is not supported, cannot be applied, or where usage of keep-alives is not implicitly negotiated as part of the SI...

the study investigates to give an analysis of literary text through a contrastive analysis of some linguistic form frequencies in the texts. three short stories , two english short stories by ernest hemingway and bruce holland rogers and a persian short story by sadeq choubak, have been analyzed for this paper. the study indicates that, by contrasting some linguistic elements, one can describe ...

One major criticism of direct or active perception (and other forms of embodied action) from the perspective of cognitive psycology is that, according to common sense, there are some actions that require strictly symbolic information — for example, to stop a car in response to a red traffic light — which fall outside the realm of a perception-action cycle. Although such cognitive responses are ...