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On Polish groups admitting non-essentially countable actions (open access)

On Polish groups admitting non-essentially countable actions

Article addresses the question whether every Polish group that is not locally compact admits a Borel action on a standard Borel space whose associated orbit equivalence relation is not essentially countable. The authors e answer this question positively for the class of all Polish groups that embed in the isometry group of a locally compact metric space.
Date: September 17, 2019
Creator: Kechris, Alexander S.; Malicki, Maciej; Panagiotopoulos, Aristotelis & Zielinski, Joseph
System: The UNT Digital Library
Surface-specific washing-free immunosensor for time-resolved cortisol monitoring (open access)

Surface-specific washing-free immunosensor for time-resolved cortisol monitoring

This article describes a method of measuring cortisol levels. It presents a metal-enhanced fluorescence assay based on a displacement of a dye labeled BSA-cortisol conjugate from the immune complex immobilized on the golden islands by free cortisol.
Date: December 29, 2020
Creator: Safarian, Sofia M.; Kusov, Pavel A.; Kosolobov, Sergey S.; Borzenkova, Oksana V.; Khakimov, Artem V.; Kotelevtsev, Yuri V. et al.
System: The UNT Digital Library