Analysis and modeling of radio propagation fading characteristics in tunnel construction.

With the development of underground rail transit, the concept of intelligent tunnel construction has been proposed and promoted. High-quality networking during tunnel construction is a prerequisite for this, making it highly urgent to establish networking during tunnel construction. When studying intra-tunnel networking, it is necessary to consider the propagation characteristics of radio waves in the tunnel.

Responses of CD27 CD38 plasmablasts, and CD24 CD27 and CD24 CD38 regulatory B cells during primary dengue virus 2 infection.

Background: Humoral immunity is thought to play a central role in mediating the immunopathogenesis of dengue virus (DENV) infection; however, the B-cell responses elicited by primary DENV2 infection are incompletely understood. Follicular helper T cells (Tfh) are important to promote B-cell activation and differentiation.

Methods: The present study analyzed the detailed dynamic changes of circulating B-cell subsets and Tfh (cTfh) using flow cytometry to explore their responses to DENV2 infection.

Protective role of follicular CXCR5CD8 T cells against dengue virus 2 infection.

Unlabelled: Follicular CXCR5CD8 T cells have antiviral effects in chronic virus infection, but the roles of these cells during dengue virus 2 (DENV2) infection remain poorly understood.

Objective: This study was conducted to analyzed in detail the dynamic changes and functional properties of circulating follicular CXCR5CD8 T cells to explore their effects on DENV2 infection.

Methods: Circulating follicular CXCR5CD8 T cells and cytokines were analyzed by flow cytometry in DENV2 patients at difference days after DENV2 infection.

Traffic-related PM2.5 induces cytosolic [Ca²⁺] increase regulated by Orai1, alters the CaN-NFAT signaling pathway, and affects IL-2 and TNF-α cytoplasmic levels in Jurkat T-cells.

The atmospheric particulate matter with a diameter less than or equal to 2.5 um (PM2.5) can result in increased immune system damage or diseases, however, the possible mechanism remains unclear.