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Transportation Research Part A: Policy and Practice is a bimonthly peer-reviewed scientific journal covering research on transportation policy and related issues. [1] It was established in 1979 as Transportation Research Part A: General , obtaining its current name in 1992.
When both A and B are n × n matrices, the trace of the (ring-theoretic) commutator of A and B vanishes: tr([A, B]) = 0, because tr(AB) = tr(BA) and tr is linear. One can state this as "the trace is a map of Lie algebras gl n → k from operators to scalars", as the commutator of scalars is trivial (it is an Abelian Lie algebra). In particular ...
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Part A is the hospital insurance part. Medicare Part A helps cover more than just the cost of being in a hospital when you’re 65 or older. Part A also sometimes covers skilled facility care ...
The head of the office holds the title of United States Trade Representative (USTR), which is a Cabinet-level position, though not technically within the Cabinet, as is the case with office heads not of US departments but rather of offices contained within the Executive Office of the President.
The Transportation Research Board (TRB) is a division of the National Academy of Sciences, Engineering, and Medicine. TRB's mission is to mobilize expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges.
Transportation Research Part B: Methodological 39. 621–640. Sillano, M. and Ortúzar, J. de D. (2005) Willingness-to-pay estimation with mixed logit models: some new evidence.Environment and Planning 37. 525–550. Williams, H.C.W.L. and Ortúzar, J. de D. (1982) Behavioural theories of dispersion and the mis-specification of travel demand ...
Transportation Research Part E: Logistics and Transportation Review is a monthly peer-reviewed academic journal which publishes information and articles about logistics and transportation research. [1] It was established in 1997 and is published by Elsevier. [2]