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Method comparison study of the Elecsys® β-Amyloid (1–42) CSF assay versus comparator assays and LC-MS/MS

Background: Alzheimer's disease (AD) biomarkers, such as cerebrospinal fluid (CSF) amyloid-β (1–42; Aβ42), can provide high diagnostic accuracy. Several immunoassays are available for Aβ42 quantitation, but standardisation across assays remains an issue. We compared the Elecsys® β-Amyloid (1–42) CSF assay with three assays and two liquid chromatography tandem mass spectrometry (LC-MS/MS) methods.

Exploring analytical avenues for agonistic peace

The main contribution of this article is a rethinking of the peace concept, geared towards the creation of a framework for the analysis of agonistic peace. The literature on agonistic peace has thus far been elaborate in terms of theoretical sophistication. However, the dearth of empirical research on the concept is quite remarkable. This study takes that lacuna as a starting point for the groundi