In this paper, we present the formal semantics of sequence diagrams. The semantics of a sequence diagram is interpreted as a consecutive execution of steps in UTP. The semantics clearly captures the ...

Employers are failing to insure the working class, and Medicaid cuts would leave them even more vulnerable. One doctor explains the situation.

The president and his allies in the Senate have cited inaccurate claims about their tax and policy bill.

In this paper, a new topology of the class E power amplifier (PA) is proposed. The output circuit in the proposed PA is different from that in the conventional class E PA. The conventional output ...