Detecting dependence between two random variables is a fundamental problem. Although the Pearson correlation coefficient is effective for capturing linear dependence, it can be entirely powerless for ...

(11/4/25) The energy price index fell 3.7% in October, driven by a 5.1% decline in crude oil prices, partially offset by a 7.5% rise in U.S. natural gas prices. The non-energy price index changed ...

ABSTRACT: Our study focused on daily data from the Regional Stock Exchange (BRVM) covering the period from 4 January 2014 to 26 February 2025. We selected five indices, including the two main indices ...

We conducted a systematic review and meta‐analysis of studies examining the association of viral infections with the risk of cardiovascular disease, including coronary heart disease (CHD) and stroke.

1 Department of General Surgery, The Sixth Affiliated Hospital, South China University of Technology, Foshan, Guangdong, China 2 Department of General Surgery, Qilu Hospital of Shandong University, ...