Prevalence of HR-HPV infection, and univariate and multivariate logistic regression analyses of the association between potential predictors and HR-HPV infection in sexually active respondents (n = 770).

<p>CT = Chlamydia trachomatis; STD = sexually transmitted disease; AOR = Adjusted odds ratio</p><p>*Wilcoxon rank-sum test (for trend)</p><p>†Chi-square test</p><p>Prevalence of HR-HPV infection, and univariate and multivariate logistic regression analyses of the association between potential predictors and HR-HPV infection in sexually active respondents (n = 770).</p

Lattice Water-Induced Helical Stacking of Tartrate-Bridged Dinuclear Palladium(II) Complexes: The Role of Hydrogen Bonding

Hydrous crystals of [{Pd^II(bpy)}₂(μ-x-tart)]·<i>n</i>H₂O (bpy: 2,2′-bipyridine; tartH₂^2–: tartrate; <b>1a</b>: x = l, <i>n</i> = 6; <b>2a</b>: x = d, <i>n</i> = 6; <b>3a</b>: x = dl, <i>n</i> = 4; <b>4a</b>: x = <i>meso</i>, <i>n</i> = 4) and anhydrous crystals of [{Pd^II(bpy)}₂(μ-l-tart)] (<b>1b</b>) were isolated from aqueous and MeOH solutions, respectively. X-ray crystallography revealed the stacked structures of clamshell-like dinuclear units in <b>1a</b>–<b>3a</b> and <b>1b</b>, where intramolecular metal–metal and π–π stacking interactions were observed. Right- and left-handed helically stacked columns were formed in the <b>1a</b> and <b>2a</b> crystals, respectively. The significant role of hydrogen bonding among lattice water molecules and tartrate is suggested because <b>1b</b> exhibited a zigzag arrangement only through intermolecular metal–metal interactions. In <b>3a</b>, l- and d-tart units stacked alternately in a zigzag arrangement with intermolecular π–π interactions. In <b>4a</b>, dimeric aggregates of the twisted dinuclear units further formed a 2D sheet architecture