Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Robert E. Pugh"'
Publikováno v:
Pediatric Radiology. 32:110-113
Over recent years, MRI has become the imaging modality of choice for examination of the head, neck and spine.The primary objective was to compare the clinical benefit of CT with MRI for children being investigated at a district general hospital. Seco
Autor:
Enitan D. Carrol, Mario Abinun, Terence J. Flood, Siraj A. Misbah, Julia E Clark, Amir H Latif, Andrew J. Cant, Robert E Pugh
Publikováno v:
BMJ. 323:501-503
Sensitive imaging is needed in children with recurrent bacterial meningitis to detect cranial anatomical defects Recurrent bacterial meningitis in childhood is unusual and should prompt a search for immune deficiency. A variety of immunological defec
Publikováno v:
All Days.
Abstract We describe business practices and IT tools that we deployed to reduce the time that Engineers and Geoscientists spend looking for, gaining access to, and manipulating data and information. Various sources have estimated that technical profe
Autor:
Robert E. Pugh
Publikováno v:
Canadian Journal of Physics. 60:1630-1640
The Feynman rules for self-interacting Yang–Mills fields are derived within the framework of conventional covariant quantum field theory by explicitly calculating the contributions of the nonphysical field components to the violations of the S-matr
Autor:
Robert E. Pugh
Publikováno v:
Physical Review D. 21:815-819
An SU(3) gauge model of weak and electromagnetic interactions is based on the fundamental triplet ${({e}^{+},{e}^{\ensuremath{-}},{\ensuremath{\nu}}_{e})}_{L}$. The Weinberg angle is predicted to be 30\ifmmode^\circ\else\textdegree\fi{}. The extensio
Autor:
Marilyn McMillen, Robert E. Pugh
Publikováno v:
Research on Aging. 8:3-21
A cross-national comparison of population age structure and of retirement benefits programs of the social security systems in eight developed countries is made to examine the different policy responses countries have made to the aging of their popula
Autor:
Robert E. Pugh
Publikováno v:
Journal of Mathematical Physics. 7:376-384
The formalism of S‐operator theory is generalized to apply to all low‐spin particles with particular emphasis on quantum electrodynamics. It is shown that only direct (nongradient) interactions are allowed, when spinor fields are involved. The Pa
Autor:
Robert E. Pugh
Publikováno v:
Canadian Journal of Physics. 48:2101-2106
The transformations of the renormalized interpolating fields generated by the gauge transformation of the free asymptotic fields restrict the interpolating fields to satisfying certain commutation rules. These commutation rules, in turn, give a non-p
Autor:
Robert E. Pugh
Publikováno v:
Journal of Mathematical Physics. 6:740-746
It is postulated that the S operator is dynamically independent of the wavefunctions of the asymptotic states. From this postulate a functional differential equation for the S operator is developed. Its solutions include both the renormalized and unr
Autor:
Robert E. Pugh
Publikováno v:
Canadian Journal of Physics. 47:1263-1269
The surface terms arising from a shift of origin in divergent Feynman integrals are considered. Sum rules and recursion relations between these terms are derived for an arbitrary degree of divergence and tensor rank. These relations are explicitly so