In this paper we improve and extend a recent analysis which showed that the ρ−ω mixing amplitude cannot be unambiguously extracted from the pion electromagnetic form-factor in a model independent way. In particular, we focus on the argument that the extraction is sensitive to the presence of any intrinsic ω I → ππ coupling. Our extended analysis confirms the original conclusion, with only minor...

The category of crossed complexes gives an algebraic model of CW-complexes and cellular maps. Free crossed resolutions of groups contain information on a presentation of the group as well as higher homological information. We relate this to the problem of calculating non-abelian extensions. We show how the strong properties of this category allow for the computation of free crossed resolutions ...

We analyse pion–nucleus reactions in a microscopic transport model of the BUU type, which propagates nucleons, pions, deltas and N (1440)-resonances explicitly in space and time. In particular we examine pion absorption and inelastic scattering cross sections for pion kinetic energies T π = 85 − 315M eV and various target masses. In general, the mass–dependence of the experimental data is well ...

Flavour-changing neutral current decays such as c → ul + l − are highly suppressed in the Standard Model, but may be enhanced by New Physics. The latest searches for such decays at LHCb based on 1.0 fb −1 of data collected in 2011 are presented in this document. Two decays, 2-body

PURPOSE To determine the prevalence of uterine leiomyomas, diagnosed by ultrasound, in a private health care setting located in the central eastern region of Portugal, and to explore the demographic and clinical factors related to diagnosis and symptomatology. PATIENTS AND METHODS The files of 624 patients attending a private clinic in Covilhã, Portugal, from January 2 to December 31, 2010 we...

Molecular mimicry of cytokines and cytokine receptors is a strategy used by poxviruses and herpesviruses to modulate host immunity. The human cytomegalovirus (HCMV) UL144 gene, situated in the UL/b0 region of the viral genome, has amino-acid sequence similarity to members of the tumour necrosis factor receptor superfamily. We report that UL144 is a potent activator of NFjB-induced transcription...

We prove that Perfect Matching in bipartite planar graphs is in UL, improving upon the previous bound of SPL (see [DKR10]) on its space complexity. We also exhibit space complexity bounds for some related problems. Summarizing, we show that, constructing: 1. a Perfect Matching in bipartite planar graphs is in UL 2. a Hall Obstacle in bipartite planar graphs is in NL; 3. an Even Perfect Matching...

Although dietary nutrient intake is often adequate, nutritional supplement use is common among elite athletes. However, high-dose supplements or the use of multiple supplements may exceed the recommended daily allowance (RDA) of particular nutrients or even result in a daily intake above tolerable upper limits (UL). The present case report presents nutritional intake data and supplement use of ...

INTRODUCTION Reaching movements in stroke patients are characterized by decreased amplitudes at the shoulder and elbow joints and greater displacements of the trunk, compared to healthy subjects. The importance of an appropriate and specific contraction of the interscapular and upper limb (UL) muscles is crucial to achieving proper reaching movements. Functional electrical stimulation (FES) is ...