Anhui Normal University

About: Anhui Normal University is a education organization based out in Wuhu, China. It is known for research contribution in the topics: Catalysis & Population. The organization has 7955 authors who have published 7309 publications receiving 117443 citations.

Effects of Age and Sex on Subcortical Volumes

Abstract: Purpose: In an increasingly ageing society, it is of great importance to consider trajectories of subcortical volumes at different ages for understanding biological markers of ageing. Thus, we investigated sex, age and their interactions on subcortical volumes, including the basal ganglia, thalamus, hippocampus and amygdala. Methods: We analysed the adult lifespan trajectory of subcortical volumes and asymmetries in 563 healthy subjects aged from 19 to 86 using magnetic resonance imaging (MRI) data from the publicly available IXI data set. Results: The sex made strong contributions to the trajectories of subcortical volumes with aging, including the right putamen, right pallidum, bilateral thalamus, hippocampus and amygdala. The volume of the right putamen, right pallidum and right thalamus decreased more rapidly in males than in females. The asymmetry in the hippocampus decreased only in the males and not in the females. Changes in the accumbens and pallidum fit quadratic trajectories, in which females increased until 39.26 years old in the accumbens asymmetry and then began to rapidly decline, males showed a linear decline. Conclusions: The results suggest that compared with females, males have a faster decline in the volume of the right putamen, right pallidum and right thalamus. The findings may be significant to investigate the occurrence and prevalence of degenerative brain disorders in males and females. Future study can focus on the functional and behavioural relations with subcortical structures for preventive measures of related disorders.

Synthesis of Chiral Vicinal Diamines by Silver(I)-Catalyzed Enantioselective Aminolysis of N-Tosylaziridines.

Abstract: The kinetic resolution of 2-aryl-N-tosylaziridines and the asymmetric desymmetrization of meso-N-tosylaziridines by ring openings with various primary and secondary anilines, and aliphatic amines as nucleophile have been realized by using a single silver(I)/chiral diphosphine complex as catalyst for the first time. The simple starting materials, broad scope, and easy scalability render this protocol a practical way to chiral vicinal diamine derivatives.

Ultrathin trimetallic metal–organic framework nanosheets for highly efficient oxygen evolution reaction

Abstract: Metal–organic frameworks (MOFs) are seldom used as the catalyst in the oxygen evolution reaction due to their lower conductivity, fewer number of activity centres and poor ion-transfer passage. In this study, a bimetallic/trimetallic ZIF nanosheets was successfully synthesized using 2-methylimidazole as an organic ligand. The 2D structure provided more active centres and better ion transfer passage, while the trimetallic structure increased the conductivity, which led to these ZIF nanosheets exhibiting a more active property, with an overpotential of 216 mV at 100 mA cm−2 and a Tafel slope of 23.25 mV dec−1 in 1 M KOH, and they also showed good stability under alkaline conditions.