Entropy in catalyst dynamics under confinement.

Entropy during the dynamic structural evolution of catalysts has a non-trivial influence on chemical reactions. Confinement significantly affects the catalyst dynamics and thus impacts the reactivity. However, a full understanding has not been clearly established.

Brief Report: Social Factors Associated With Trajectories of HIV-Related Stigma and Everyday Discrimination Among Women Living With HIV in Vancouver, Canada: Longitudinal Cohort Findings.

Introduction: Women living with HIV (WLHIV) experience stigma rooted in social inequities. We examined associations between social factors (food insecurity, housing insecurity, violence, sexual minority identity, and substance use) and HIV-related stigma and Everyday Discrimination trajectories among WLHIV.

Methods: This community-based open longitudinal cohort study with WLHIV living in and/or accessing HIV care in Metro Vancouver, Canada, plotted semiannual averages (2015-2019) of recent (past 6-month) HIV-related stigma and Everyday Discrimination.

Antiproliferative Fatty Acids Isolated from the Polypore Fungus .

is a widespread root rot pathogen frequently found in coniferous forests in North America. In this study, the potential medicinal properties of this wild polypore mushroom collected from north-central British Columbia, Canada, were investigated. The ethanol extract from was found to exhibit strong antiproliferative activity.

Phenol-selective mass spectrometric analysis of jet fuel.

Bromobenzyl compounds react selectively with phenols via the Williamson ether synthesis. An imidazolium charge-tagged bromobenzyl compound can be used to reveal phenol impurities in jet fuel by analysis via electrospray ionization mass spectrometry. The complex matrix as revealed by Cold EI GC/MS analysis is reduced to a few simple sets of compounds in the charge-tagged ESI mass spectrum, primarily substituted phenols and thiols.

Proteomic analysis of macrophages: a potential way to identify novel proteins associated with activation of macrophages for tumor cell killing.

One major mechanism through which macrophages effectively kill tumor cells requires cell to cell contact, indicating that certain molecules expressed on cell surface of activated macrophages may mediate the tumoricidal capability. Tumor necrosis factor (TNF) and nitric oxide (NO) are the two classical mediators of tumor cell death. However, evidence of discrepancy is accumulating indicating these known mediators do not appear to account for the broad and potent tumoricidal activity of macrophages.