[Effect of 4 kinds of prosthodontic materials on masticatory and gingival function].

Purpose: To investigate the effect of 4 kinds of prosthodontic materials on masticatory and gingival function.

Methods: A total of 167 patients with dental defects who underwent prosthodontic treatment from October 2019 to January 2022 were collected. They were randomly divided into 4 groups with 41 cases in the pure titanium group, 40 cases in the cobalt-chromium alloy group, 43 cases in the nickel-chromium alloy group and 43 cases in the zirconium dioxide group.

Research competence of community nurses in Shanghai: A cross-sectional study.

Aims: This study aimed to investigate the current situation of community nurses' research competence in Shanghai, to provide a basis for curricula design for nursing schools, construction of better research environments and nurturing research talents among community nurses.

Background: Nurses are expected to not only consume research findings but also produce knowledge. In China, there is more attention on cultivation of community nurses' research competence.

BN-Anthracene for High-Mobility Organic Optoelectronic Materials through Periphery Engineering.

Despite the remarkable synthetic accomplishments in creating diverse polycyclic aromatic hydrocarbons with B-N bonds (BN-PAHs), their optoelectronic applications have been less exploited. Herein, we report the achievement of high-mobility organic semiconductors based on existing BN-PAHs through a "periphery engineering" strategy. Tetraphenyl- and diphenyl-substituted BN-anthracenes (TPBNA and DPBNA, respectively) are designed and synthesized.

Clinical efficacy of atorvastatin calcium combined with aspirin in patients with acute ischemic stroke and effect on neutrophils, lymphocytes and IL-33.

Clinical efficacy of atorvastatin calcium combined with aspirin in patients with acute ischemic stroke (AIS) and its effect on neutrophils to lymphocytes ratio (NLR) and interleukin-33 (IL-33) were investigated. In total, 108 patients with AIS in Luoyang Central Hospital Affiliated to Zhengzhou University from April 2016 to October 2017 were selected. There were 56 cases treated with atorvastatin calcium combined with aspirin as the observation group, and 52 cases were treated with aspirin alone as the control group.

Effect of functional groups on microporous polymer based resistance switching memory devices.

Here, two large-area microporous polymer (MP) films with different substituents were synthesized at the solution/air interface. The on/off ratios of the MP-based memristors differ by an order of magnitude and the turn-on voltages differ by about 0.2 V, which is mainly attributed to the difference in band gap and pore environment of the materials.

Copper-Catalyzed Selenylation of Imidazo[1,2-a]pyridines with Selenium Powder via a Radical Pathway.

A convenient and efficient approach for the formation of nitrogen heterocycle-fused imidazo[1,2-a]pyridine and benzo[b]selenophenes has been developed through copper-catalyzed direct selenylation of readily available 2-(2-bromophenyl)imidazo[1,2-a]pyridines via regioselective cleavage of C(sp)-Br and C(sp)-H bonds using readily available selenium powder as the selenylating reagents under ligand- and base-free conditions in air. Preliminary mechanistic investigations indicated that radical species were involved in the present transformation.

[Estimation of the optically active substances in case II water of the lower Jinjiang River based on the bio-optical model].

The water's Inherent Optical Properties (IOPs), including absorption and scattering coefficients of water components, are the essential parameters for bio-optical model and retrieval of water quality using the semi-analytical method. Nevertheless, the application of the bio-optical model in river water studies is still very rare. Therefore, taking the lower Jinjiang River of Fujian, SE China as an example, this study measured and calculated the bio-optical properties of river water and concentrations of optically active substances based on in situ water samples collected from river in 2007.