To the Editor: I am concerned about errors in simple statistical concepts in articles recently published in Circulation. First, I worry about the widespread use of the standard error of mean (SEM) to describe the variability of numerical data. Specifically, SEM was used in 30% of the clinical investigations and reports and in 76% of the basic science reports analyzed for this purpose (the first...

We assess comprehensively the potential of galaxy cluster edges as a standard ruler in measuring cosmological distances and probing exotic physics. Confronting five alternative models with from near future Dark Energy Spectroscopic Instrument survey, we conclude that can serve promising probe to constrain beyond $\Lambda$CDM. Especially, constraining precision equation state dark energy is just...

A bstract The extension of the Standard Model (SM) with two Higgs triplets offers an appealing way to account for both tiny Majorana neutrino masses via type-II seesaw mechanism and cosmological matter-antimatter asymmetry triplet leptogenesis. In this paper, we classify all possible accidental symmetries in scalar potential two-Higgs-triplet model (2HTM). Based on bilinear-field formalism, sho...