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Recently, a chronic state of impaired venous drainage from the central nervous system, termed chronic cerebrospinal venous insufficiency (CCSVI) was claimed to be a pathologic condition exclusively seen in patients with multiple sclerosis (MS), suggesting that cerebral venous congestion plays a significant role in the pathogenesis of MS. This hypothesis has gained enormous attention among patients...
We have built a liquid nitrogen cooled low temperature stage for scanning electron microscopes, which is specially designed for the study of high transition temperature (T c ) superconducting devices and circuits in very small and stable magnetic fields. For effective magnetic shielding of the sample we use a superconducting cylindric YBa 2 Cu 3 O 7-δ shield...
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