We analyze the correlation function of a meson with one heavy and one light quark in inverse powers of the heavy quark mass m Q using a succession of Foldy-Wouthuysen-type transformations prior to radiative corrections. We evaluate the correlator to order m 0 Q in a random and dilute gas of instantons, using the planar approximation. We show, in leading order in the density, that the heavy quar...

• The spectral peak shift of the plasmon resonance an optical fibre containing gold NPs under axial strain was analysed. By choosing different fibres or properties NPs, tunable highly sensitive sensing can be achieved. method may used as auxiliary detection along with distributed optic sensing. Strain-based structural health monitoring (SHM) relies on high performance methods. Gold nanoparticle...

So far in this course, we have been proving upper bounds on the approximation factors achievable for certain NP -hard problems by giving approximation algorithms for them. In this lecture, we shift gears and prove lower bounds for some of these problems, under the assumption that P 6= NP . For some problems, essentially matching upper and lower bounds are known, indicating that the approximabil...

Neuropilin-1 and -2 (NP-1/NP-2) are transmembrane receptors that play a role in axonal guidance by binding of class III semaphorins, and in angiogenesis by binding of the vascular endothelial growth factor isoform VEGF165 and placenta growth factor (PLGF). We investigated the expression pattern of NP-1/NP-2, their co-receptors, vascular endothelial growth factor receptor-1 and -2 (VEGFR-1, VEGF...

We have addressed the question of whether antigen binding induces a conformational change in the heavy chain constant (C(H)) domain of antibodies using staphylococcal protein A or streptococcal protein G as probes, since these proteins are known to bind to IgG domains such as C(H)1 and C(H)2-C(H)3 domains. Biosensor assays on interactions between these proteins and mouse IgG specific to (4-hydr...

We have prepared a multi-component nanoporous PtRuCuW (np-PtRuCuW) electrocatalyst via a combined chemical dealloying and mechanical alloying process. The X-ray diffraction (XRD), transmission electron microscopy (TEM) and electrochemical measurements have been applied to characterize the microstructure and electrocatalytic activities of the np-PtRuCuW. The np-PtRuCuW catalyst has a unique thre...