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2 results on '"Jia-ju Wang"'

1. Cartilaginous predictors of residual acetabular dysplasia (RAD) in developmental dysplasia of the hip following closed or open reduction: A systematic review and meta-analysis

Author

Shuai Yang, Fei Su, Hao-Ruo Jia, Chen-Xin Liu, Qing-Da Lu, Ya-Ting Yang, Yong Liu, Jia-Ju Wang, and Qiang Jie

Subjects
developmental dysplasia of the hip, cartilage, acetabulum, prognosis, meta-analysis, Pediatrics, RJ1-570
Abstract

ObjectThis study was designed to analyze the cartilaginous predictors of residual acetabular dysplasia (RAD) after early treatment of developmental dysplasia of the hip and their diagnostic accuracy.Study designDatabases such as PubMed, Embase, Cochrane, and Web of science were searched to screen the literature. The quality of the literature was assessed by the QUADAS-2 tool. Qualitative and quantitative synthesis of literature were performed based on extracted data. For quantitative synthesis studies, the sensitivity, specificity, diagnostic odds ratio (DOR), and summary receiver operating characteristic (SROC) curve with corresponding confidence intervals were calculated.ResultsFor the cartilaginous acetabular index (CAI) group, the combined values of sensitivity, specificity, and DOR were 0.80 (95% CI = 0.54–0.93), 0.73 (95% CI = 0.57–0.84), and 10.62 (95% CI = 3.96–28.53), respectively. The corresponding values in the cartilaginous center-edge angle (CCE) group were 0.71 (95% CI = 0.57–0.82), 0.78 (95% CI = 0.66–0.87), and 8.64 (95% CI = 3.08–24.25), respectively. The area under the curve (AUC) of SROC was 0.82 (95% CI = 0.78–0.85) and 0.80 (95% CI = 0.76–0.83) for the CAI and CCE groups. The CAI group had higher sensitivity, DOR, and AUC than the CCE group.ConclusionBoth of these two groups have good diagnostic accuracy, and CAI/L-AI has a little edge over CCE/L-CEA. However, there is still more research needed to determine whether they can be used as independent indications for secondary orthopedic surgery.Systematic review registration: [https://www.crd.york.ac.uk/PROSPERO/], identifier: [CRD42022338332].

Published
2023
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2. Density functional investigation on structural and electronic properties of small bimetallic Pb n Ag n (n=2–12) clusters

Author

Jia-ju Wang, Dachun Liu, Baoqiang Xu, Bin Yang, Yang Hongwei, Chen Xiumin, and Gaofeng Li

Subjects
DMol3, Materials science, Binding energy, Metals and Alloys, General Engineering, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Crystallography, Ionization, Cluster (physics), Density of states, Density functional theory, 0210 nano-technology, Ground state, HOMO/LUMO
Abstract

Structural and electronic properties of Pb n Ag n (n=2–12) clusters were investigated by density functional theory with generalized gradient approximation at BLYP level in DMol3 program package. The optimized bimetallic Pb n Ag n (n=2–12) clusters were viewed as the initial structures, then, those were calculated by ab initio molecular dynamics (AIMD) to search possible global minimum energy structures of Pb n Ag n clusters, finally, the ground state structures of Pb n Ag n (n=2–12) clusters were achieved. According to the structural evolution of lowest energy structures, Ag atoms prefer gather in the central sites while Pb atoms prefer external positions in Pb n Ag n (n=2–12) clusters, which is in excellent agreement with experimental results from literature and the application in metallurgy. The average binding energies, HOMO-LUMO gaps, vertical ionization potentials, vertical electron affinities, chemical hardness η, HOMO orbits, LUMO orbits and density of states of Pb n Ag n (n=2–12) clusters were calculated. The results indicate that the values of HOMO-LUMO gaps, vertical ionization potentials, vertical electron affinities and chemical hardness η show obvious odd-even oscillations when n≤5, Pb n Ag n (n=2–12) clusters become less chemically stable and show insulator-to-metal transition with the variation of cluster size n, Pb n Ag n (n≥9) cluster are good candidates to study the properties of PbAg alloys. Those can be well explained by the density of states (DOS) distributions of Pb atoms and Ag atoms between–0.5 Ha and 0.25 Ha in Pb n Ag n (n=2–12) clusters.

Published
2018
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