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• Particle electrode Ti–Ag/γ-Al 2 O 3 was prepared and used in the 3D electrocatalytic oxidation reaction system. • High-chemical oxygen demand concentration pesticide wastewater was pretreated by 3D electrocatalytic oxidation. • Electrolysis conditions for high-COD concentration pesticide wastewater were discussed and optimized. • The biodegradability of the pesticide wastewater was improved significantly. The treatment of difficult biodegradable industrial wastewater by electrocatalytic oxidation technology has positive significance for the prevention and control of industrial pollution. In this study, particle electrode Ti–Ag/γ-Al 2 O 3 was prepared and used as a catalyst in the 3D electrocatalytic oxidation reaction system for pretreatment of high-chemical oxygen demand (COD) concentration pesticide wastewater. Electrolysis conditions for high-COD concentration pesticide wastewater were discussed and optimized, and single-factor experiment results showed that the maximum COD removal rate was 82.50% with an energy consumption of 10.91 (kW h) kg−1 COD at conductivity of 4000 μS cm−1, current density of 30 mA cm−2, initial pH of 2.0, electrode distance of 3.0 cm, air flow of 3.0 L min−1, and filling proportion of 50.0%. The UV–visible absorption spectrum analysis of pesticide wastewater at different electrolysis times showed that the organic macromolecules containing long-chain, heterocyclic, and other structures were degraded into small molecular organic compounds. After the 3D electrocatalytic oxidation reaction, the BOD 5 /COD value of pesticide wastewater increased from 0.041 to 0.308, indicating that the biodegradability of the pesticide wastewater was improved significantly. [ABSTRACT FROM AUTHOR]

Crohn's disease (CD) is a chronic and relapsing inflammatory condition that affects segments of the gastrointestinal tract. CD activity is determined by histological findings, particularly the density of neutrophils observed on Hematoxylin and Eosin stains (H&E) imaging. However, understanding the broader morphometry and local cell arrangement beyond cell counting and tissue morphology remains challenging. To address this, we characterize six distinct cell types from H&E images and develop a novel approach for the local spatial signature of each cell. Specifically, we create a 10-cell neighborhood matrix, representing neighboring cell arrangements for each individual cell. Utilizing t-SNE for non-linear spatial projection in scatter-plot and Kernel Density Estimation contour-plot formats, our study examines patterns of differences in the cellular environment associated with the odds ratio of spatial patterns between active CD and control groups. This analysis is based on data collected at the two research institutes. The findings reveal heterogeneous nearest-neighbor patterns, signifying distinct tendencies of cell clustering, with a particular focus on the rectum region. These variations underscore the impact of data heterogeneity on cell spatial arrangements in CD patients. Moreover, the spatial distribution disparities between the two research sites highlight the significance of collaborative efforts among healthcare organizations. All research analysis pipeline tools are available at https://github.com/MASILab/cellNN.

Ti-Sb/attapulgite ceramsite particle electrodes were prepared for the efficient degradation of chloramphenicol (CAP) in wastewater. To observe the surface morphology and structural characteristics of the Ti-Sb/attapulgite ceramsite particle electrodes, Fourier transform infrared spectroscopy, X-ray fluorescence, scanning electron microscopy, and X-ray diffraction were used for characterization. Parameters affecting the degradation efficiency and the energy consumption of the Ti-Sb/attapulgite ceramsite particle electrodes, such as current density, electrode distance, initial pH, conductivity, air flow, and packing ratio, were examined. Results showed that the optimal conditions were 20 mA/cm 2 current intensity, 3 cm electrode distance, 5,000 μS/cm conductivity, 2.0 L/min air flow, 50.0% packing ratio, and initial pH 1. The removal efficiency of chloramphenicol was 73.7% under the optimal conditions, and the energy consumption was 191.3 (kW h)/kg CAP. PRACTITIONER POINTS: Attapulgite ceramsite with good physical performance was prepared. The removal efficiencies for CAP in water by Ti-Sb/attapulgite ceramsite particle electrodes were studied. CAP was effectively removed by 3-D electrode system. CAP removal was significantly influenced by operational parameters. Three-dimensional electrode system shows good degradation ability., (© 2019 Water Environment Federation.)