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A gauge theory is formulated in two spatial dimensions different from all gauge theories previously known. Unlike quantum electrodynamics in such a space there does not exist an elementary photon in the model, even though a bound state having appropriate quantum numbers can be induced for weak coupling to a spinor field. Particularly noteworthy is the fact that despite the demonstrated covariance of the theory, there is an anomaly (i.e., noncanonical) term in the spatial transformation of the charge bearing field.
Measurements of neutron scattering from elemental gadolinium over incident-energy regions of 0.3–1.5 MeV and 4.5–10.0 MeV are presented. These results Buy Nike Free Run 2 are interpreted in terms of optical-statistical and coupled-channels models, including consideration of dispersion effects and of scalar and vector potentials. Basic and applied physical implications are discussed. Comparisons are made with other models, and with the ENDF/B-VI evaluated nuclear-data files used in applications.
High-performance affinity chromatography is a new technique for the fast and efficient purification of biologically active molecules. It combines the biospecificity of affinity chromatography with the high speed and resolution obtained Nike Free 3.0 Uk in high-performance liquid chromatography. In particular, the immobilization of ligands to different silica derivatives and their suitability for high-performance affinity chromatography are discussed.