<i>H</i>. <i>pylori</i> infection according to age in two independently conducted studies in the years 1996 and 2015.

<p><i>H</i>. <i>pylori</i> infection according to age in two independently conducted studies in the years 1996 and 2015.</p

Adjusted odds ratios (OR) and 95% confidence interval (CI) for having a high dyspepsia symptom score (upper tertile vs 1^st and 2^nd tertile) according to effort-reward imbalance and intrinsic effort.

<p>Adjusted odds ratios (OR) and 95% confidence interval (CI) for having a high dyspepsia symptom score (upper tertile vs 1^st and 2^nd tertile) according to effort-reward imbalance and intrinsic effort.</p

Distribution of dyspepsia symptom score (proportion in upper tertile) according to sociodemographic factors, lifestyle variables, and current <i>H</i>. <i>pylori</i> infection status in two independent studies conducted 1996 and 2015.

<p>Distribution of dyspepsia symptom score (proportion in upper tertile) according to sociodemographic factors, lifestyle variables, and current <i>H</i>. <i>pylori</i> infection status in two independent studies conducted 1996 and 2015.</p

Distribution of dyspepsia symptom score (proportion in upper tertile) according to work-related factors and psychosocial variables in two independent studies conducted 1996 and 2015.

<p>Distribution of dyspepsia symptom score (proportion in upper tertile) according to work-related factors and psychosocial variables in two independent studies conducted 1996 and 2015.</p

Photo-Cross-Linkable Polyfluorene–Triarylamine (PF–PTAA) Copolymer Based on the [2 + 2] Cycloaddition Reaction and Its Use as Hole-Transport Layer in OLEDs

We report the synthesis and characterization of a cross-linkable, cinnamic acid functionalized, hole-transporting polyfluorene–triarylamine (PF–PTAA) copolymer. Irradiation with light induces [2 + 2] cycloaddition and renders thin films of this polymer insoluble. Spin-coated films of the polymer and their light-induced cross-linking were investigated by atomic force and electron microscopy. In a proof-of-principle multilayer OLED device the polymer was applied as hole-transport layer (HTL) with commercially available <b>F8BT</b> as emitting layer (EML). Compared to the reference device without HTL we observe a significant increase in OLED performance. These results promise progress in cost-effective large area fabrication of polymer-based multilayer OLEDs with superior performance