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In this study, SiO2 coating was electrodeposited on Ti45Al8.5Nb alloy to enhance its oxidation resistance at 900 °C. The focus was on the interaction between SiO2 coating and the alloy substrate, and specifically, the role of the Nb element in this context. The formation of a SiO2/(Ti, Nb)O2/Ti5Si3 + Al2O3 three-layer oxide scale significantly inhibits the inward diffusion of oxygen. Beyond the characteristic Ti5Si3 + Al2O3 layer at the interface, the Nb2Al phase embedded within Ti5Si3 was observed. Concurrently, the presence of a (Ti, Nb)O2 layer was confirmed. The relationship between the coating thickness and oxidation resistance was also investigated. It was found that the thickness of the SiO2 coating affects the density of the oxide scale and the inward diffusion rate of oxygen. Moreover, due to the good adhesion to the substrate, the derived oxide scale exhibited good anti-peeling performance when subjected to a cyclic oxidation test. [ABSTRACT FROM AUTHOR]

C30H32N4O8S2Cu2, triclinic, P1̅ (no. 2), a = 8.7209(5) Å, b = 12.9753(7) Å, c = 14.7680(8) Å, α = 84.584(4)°, β = 89.392(4)°, γ = 87.913(4)°, V = 1662.49(16) Å3, Z = 2, Rgt(F) = 0.0469, wRref(F2) = 0.1252, T = 296 K.

C11H10N2OS, monoclinic, Pc (no. 7), a = 12.050(3) Å, b = 5.5218(13) Å, c = 8.1813(19) Å, β = 107.934(6)°, V = 517.9(2) Å3, Z = 2, Rgt(F) = 0.0483, wRref(F2) = 0.1247, T = 296 K.

C11H10N2OS, monoclinic, Pc (no. 7), a = 12.050(3) Å, b = 5.5218(13) Å, c = 8.1813(19) Å, β = 107.934(6)°, V = 517.9(2) Å3, Z = 2, Rgt (F) = 0.0483, wRref (F2 ) = 0.1247, T = 296 K. [ABSTRACT FROM AUTHOR]

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The article discusses the crystal structure of the title compound 4,4'-sulfonyldipyridine-3-chlorobenzoic acid (1:1) (C24H18Cl2N2O6S). Topics discussed include the synthesis of the title compound, experimental data, and refinement. Also provided are the supplementary materials which include fractional atomic coordinates, atomic displacement parameters, and geometric parameters.

C11H6AgF5N4O2S, monoclinic, P21/m (No. 11), a = 5.962(3) Å, b = 13.088(6)Å, c = 9.339(4)Å, β = 105.449(5)°, V = 702.4 Å3, Z = 2, Rgt(F) = 0.0214, wRref(F2) = 0.0556, T = 296 K. [ABSTRACT FROM AUTHOR]

C13H10AgBF4N2O3, orthorhombic, Pbca (no. 61), a = 13.2751(5) Å, b = 14.6212(5) Å, c = 15.5573(6) Å, V = 3019.6 Å3, Z = 8, Rgt(F) = 0.0498, wRref(F2) = 0.1423, T = 296 K. [ABSTRACT FROM AUTHOR]

Background: Erythrocyte dysfunction is a characteristic of diabetes mellitus (DM). However, erythrocyte-associated biomarkers do not adequately explain the high prevalence of DM. Here, we describe red blood cell distribution width to albumin ratio (RAR) as a novel inflammatory biomarker for evaluating an association with DM prevalence and prognosis of all-cause mortality., Methods: Data analyzed in this study were extracted from the National Health and Nutrition Examination Survey (NHANES) 1999-2020. A total of 40,558 participants (non-DM and DM) were enrolled in the study; RAR quartiles were calibrated at Q1 [2.02,2.82] mL/g, Q2 (2.82,3.05] mL/g, Q3 (3.05,3.38] mL/g, and Q4 (3.38,12.08] mL/g. A total of 8,482 DM patients were followed (for a median of 84 months), of whom 2,411 died and 6,071 survived. The prevalence and prognosis associated with RAR and DM were analyzed; age and sex were stratified to analyze the prevalence of RAR in DM and the sensitivity of long-term prognosis., Results: Among non-DM ( n =30,404) and DM ( n =10,154) volunteers, DM prevalence in RAR quartiles was 8.23%, 15.20%, 23.92%, and 36.39%. The multivariable odds ratio (OR) was significant for RAR regarding DM, at 1.68 (95% CI 1.42, 1.98). Considering Q1 as a foundation, the Q4 OR was 2.57 (95% CI 2.11, 3.13). The percentages of DM morbidity varied across RAR quartiles for dead ( n =2,411) and surviving ( n =6,071) DM patients. Specifically, RAR quartile mortality ratios were 20.31%, 24.24%, 22.65%, and 29.99% (P<0.0001). The multivariable hazard ratio (HR) for RAR was 1.80 (95% CI 1.57, 2.05). Considering Q1 as a foundation, the Q4 HR was 2.59 (95% CI 2.18, 3.09) after adjusting for confounding factors. Sensitivity analysis revealed the HR of male DM patients to be 2.27 (95% CI 1.95, 2.64), higher than females 1.56 (95% CI 1.31, 1.85). DM patients who were 60 years of age or younger had a higher HR of 2.08 (95% CI1.61, 2.70) as compared to those older than 60 years, who had an HR of 1.69 (95% CI 1.47, 1.94). The HR of RAR in DM patients was optimized by a restricted cubic spline (RCS) model; 3.22 was determined to be the inflection point of an inverse L-curve. DM patients with a RAR >3.22 mL/g suffered shorter survival and higher mortality as compared to those with RAR ≤3.22 mL/g. OR and HR RAR values were much higher than those of regular red blood cell distribution width., Conclusions: The predictive value of RAR is more accurate than that of RDW for projecting DM prevalence, while RAR, a DM risk factor, has long-term prognostic power for the condition. Survival time was found to be reduced as RAR increased for those aged ≤60 years among female DM patients., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Liu, Wang, Gao, Zhang, Zhang, Xu, Yao, Yang and Yan.)