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At present, the goal of stroke research is the identification of a potential recoverable tissue surrounding the ischemic core, suggested as ischemic penumbra, with the aim of applying a treatment that attenuates the growth of this area. Our purpose was to determine whether a combination of imaging techniques, including (18)F-FDG PET and MRI could identify… (More)
Standard 2D NMR experiments suffer from the many t1 increments needed for spectra with sufficient digital resolution in the indirect dimension. Despite the different methodological approaches to overcome this problem, these increments have prevented studies of fast reactions. The development of ultrafast NMR (UF-NMR) has decisively speeded up the time scale… (More)
Ultrafast 2D HMBC spectroscopy permits real-time monitoring of a reaction based on the structural changes produced in a carbonyl carbon atom. This new technique was used to study the reaction of ketones, nitriles, and Tf(2)O, affording relevant information about new intermediates and kinetic data.