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According to the Abel inversion in the analysis of arc plasma temperature field, three numerical solutions were put forward: cubic spline interpolation method, Radon inversion method and curve fitting method on dispersed data table. Properties of these methods were analyzed through validating the single apex function. Precision, realization of program and the solution of integral singularity of these three methods were discussed. It is proved that these methods have their own advantages on different cases in the analyzing and calculating of actual temperature field. [ABSTRACT FROM AUTHOR]

The transmission spectrum includes the state parameters of arc plasma. The most important plasma parameters, such as temperature distribution, velocity of particles, and ingredient, can be got through spectrum diagnosis. Abel inversion is the most important process in spectrum diagnosis. Integral singularly is a difficult problem in Abel inversion. In this paper, a calculation method was put forward to the Able inversion based on cubic spline interpolation theory and cosine transform. This method got some breakthrough in solving the problem of integral singularity. It proved to be of good accuracy and easy to realize through experiments. [ABSTRACT FROM AUTHOR]

Background: This study (China Assessment of Antifungal Therapy in Hematological Diseases, CAESAR 2.0) aimed to provide updated epidemiological data on invasive fungal disease (IFD) in patients undergoing allogeneic stem cell transplantation (allo-HSCT)., Methods: This multicenter, real-world, observational study was conducted at 12 allo-HSCT centers in China between January 2021 and December 2021. Consecutive adult patients (≥18 years) who underwent allo-HSCT with antifungal prophylaxis were included. IFD was diagnosed according to the 2019 criteria of the European Organization for Research and Treatment of Cancer and Mycoses Study Group (EORTC/MSG). Follow-up was completed by December 31, 2022., Results: A total of 2015 patients were collected. mold-active antifungal prophylaxis was used in 76.08% of patients, which included mainly voriconazole (44.37%) and posaconazole (31.71%). The cumulative incidence of IFD (proven and probable) at 1 year after allo-HSCT was 6.3%. Pathogens were identified in 47.97% of IFD cases and mainly included Candida spp. (17.89%), Mucorales (13.01%), Aspergillus spp. (8.94%), and Pneumocystis jirovecii (6.5%). Multivariate analysis identified the following factors associated with IFD: disease at advanced stage (hazard ratio [HR]= 2.55; 95% confidence interval [CI]: 1.58-4.12 P<0.001), absolute neutrophil count (ANC) engraftment (≤28 days) (HR=0.37; 95% CI: 0.15-0.92 P=0.032), platelet (PLT) engraftment (≤28 days) (HR=0.41; 95% CI: 0.27-0.62 P<0.001) and acute graft-versus-host disease grade III-IV (HR=2.97; 95% CI: 1.97-4.49 P<0.001). The IFD-attributable mortality rate was 48.28%., Conclusions: Despite the widespread use of mold-active prophylaxis, the risk of IFD after allo-HSCT remains high. The most common pathogens are Candida spp., Mucorales, Aspergillus spp., and Pneumocystis jirovecii., (© The Author(s) 2024. Published by Oxford University Press on behalf of Infectious Diseases Society of America. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)