A concise geometrical formulation of N = 4 supergravity containing an antisymmetric tensor gauge field is given in central charge superspace: graviphotons are identified in the super–vielbein on the same footing as the vierbein and the Rarita–Schwinger fields. As a consequence of superspace soldering, Chern–Simons terms in the fieldstrength of the antisymmetric tensor arise as an intrinsic prop...

We consider theories with a spontaneously broken gauged R-symmetry, which can only occur in supergravity models. These give rise to cosmic R-strings upon which gravitino zero modes can exist. We construct solutions to the Rarita-Schwinger spin-3/2 equation describing the gravitino in the field of these cosmic strings and show that under some conditions these solutions may give rise to gravitino...

CONTEXT Noninferiority and equivalence trials aim to show that the experimental treatment is not clinically worse than (noninferior) or clinically similar to (equivalent) a control active treatment. These study objectives imply particular planning and analysis. OBJECTIVE To assess the methodologic quality of reports of randomized controlled trials of noninferiority and equivalence. DESIGN W...

This paper discusses a statistical approach to static timing analysis. Delays of gates and wires are modeled by stochastic values instead of the triple best case, typical and worst case delay. This has the advantage of avoiding the overly pessimistic (optimistic) outcome of traditional worst (best) case calculations. The paper proposes a new scheme to perform the delay calculations with stochas...

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Continuous welded turnouts are important for CWR track through the railway station. According to equivalent resistance and non-linear theories and the principle of force diagram, a new method of theoretical calculation for continuous welded turnouts was developed. The continuous welded turnouts designed and installed according to the new theory behaved fairly well. The data collected on sites b...

We consider several applications of net symmetries for various Petri net classes. We show, that almost all computations of symmetry groups for different net classes and almost all decision problems which appear when applying symmetric reductions can be traced back to a single algorithm. This is a very pleasing result for a multi purpose analysis tool like INA (see for instance [Fel92]). For the...

interaction and correlation effects in quantum dots play a fundamental role in defining both their equilibrium and transport properties. numerical methods are commonly employed to study such systems. in this paper we investigate the numerical calculation of quantum transport of electrons in spherical centered defect ingaas/algaas quantum dot (scdqd). the simulation is based on the imaginary time...

purpose: to evaluate ocular biometric changes after phacotrabeculectomy and its effect on intraocular lens power calculation. methods: twenty six eligible eyes (24 patients) underwent phacotrabeculectomy. they were reexamined at least 6 months after the operation in a historical cohort study. main outcome measures included axial length (al) with contact a- scan (us-8000, nidek, gamaguri, japan)...