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Fleiss' kappa. Fleiss' kappa (named after Joseph L. Fleiss) is a statistical measure for assessing the reliability of agreement between a fixed number of raters when assigning categorical ratings to a number of items or classifying items. This contrasts with other kappas such as Cohen's kappa, which only work when assessing the agreement ...
Gold ( 79 Au) has one stable isotope, 197 Au, and 40 radioisotopes, with 195 Au being the most stable with a half-life of 186 days. Gold is currently considered the heaviest monoisotopic element. Bismuth formerly held that distinction until alpha-decay of the 209 Bi isotope was observed. All isotopes of gold are either radioactive or, in the ...
Cohen's kappa. Cohen's kappa coefficient ( κ, lowercase Greek kappa) is a statistic that is used to measure inter-rater reliability (and also intra-rater reliability) for qualitative (categorical) items. [ 1] It is generally thought to be a more robust measure than simple percent agreement calculation, as κ takes into account the possibility ...
Thallium ( 81 Tl) has 41 isotopes with atomic masses that range from 176 to 216. 203 Tl and 205 Tl are the only stable isotopes and 204 Tl is the most stable radioisotope with a half-life of 3.78 years. 207 Tl, with a half-life of 4.77 minutes, has the longest half-life of naturally occurring Tl radioisotopes.
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The USDA took similar action with E. coli bacteria in 1994 after deadly food poisoning outbreaks tied to ground beef, and the number of related foodborne illnesses have fallen by more than 50%.
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Pi Kappa Alpha – Pi; Pi Kappa Phi – Rho; Sigma Chi – Zeta; Alpha Phi Alpha, a historically African American fraternity, also maintains an active chapter on campus. The Kappa Alpha Order, one of the Lexington Triad, was founded at W&L. [70] Alpha Tau Omega and Sigma Nu, the other two members of the Triad, were founded at neighboring VMI ...