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This article utilizes artificial intelligence (AI) combined with a modified contrast scheme (MCS) technique to reconstruct microwave imaging of uniaxial objects. The 2-D backscattering problem of uniaxial objects is exposed to the transverse magnetic (TM) and transverse electric (TE) incident waves. The TE polarization problem is more severe than TM. The preliminary distribution of the dielectric constant is computed by using MCS and then compared with the dominant current scheme (DCS). MCS adds a local wave amplification coefficient to rectify the contrast and thus solves the inverse scattering problem (ISP) effectively. Moreover, U-Net is employed to reconstruct the distribution of the dielectric constants of the uniaxial objects. Different noises are added to compare the reconstruction results for MCS and DCS. We also verify the effectiveness of our proposed method by the measurement data provided by the Fresnel Institute. Numerical results show that the reconstruction is almost the same for small dielectric constants for both MCS and DCS. However, MCS overwhelms DCSs for dielectric constant reconstruction when the dielectric constant is large. MCS has successfully reconstructed uniaxial objects for higher dielectric constant distributions with better performance and high precision capability.

Nucleolus is viewed as a plurifunctional center in the cell, tightly linked to ribosome biosynthesis. As a non-membranous structure, how the size of nucleolus is determined is a long outstanding question, and the possibility of “direct size scaling to the nucleus” was raised by genetic studies in fission yeast. Here, we used the model organism Caenorhabditis elegansto test this hypothesis in multi-cellular organisms. We depleted ani-2, ima-3, or C27D9.1 by RNAi feeding, which altered embryo sizes to different extents in ncl-1mutant worms. DIC imaging provided evidence that in size-altering embryo nucleolar size decreases in small cells and increases in large cells. Furthermore, analyses of nucleolar size in four blastomeres (ABa, ABp, EMS, and P2) within the same embryo of ncl-1mutants consistently demonstrated the correspondence between cell and nucleolar sizes – the small cells (EMS and P2) have smaller nucleoli in comparison to the large cells (ABa).

•Lack of GSPD-1 increased sensitivity to the infection of K. pneumoniaein C. elegans.•The innate immune response was the most important pathway affected by GSPD-1 revealed by RNAseq.•GSPD-1 maintained tight junction and intestinal barrier integrity.•GSPD-1 enhanced innate immunity though regulating the antimicrobial effector, lysozymes.•G6PD-deficient human cell culture recapitulated the defective immune response.

Advanced oxidation processes (AOPs) are potential technologies for the treatment of wastewaters containing non-easily removable organic compounds. Isopropyl alcohol (IPA) is one of the groups with high toxicity and low biodegradability and is always interested by researchers. In this study, Chemical Vapor Deposition (CVD) was used to immobilize TiO2 photocatalyst on the titanium substrate plate and extra applied electric potential on the working electrode (anode) combined with a 365 nm UV lamp for irradiating the IPA wastewater to conduct a photoelectrocatalytic reaction. The experimental results showed, during the photoelectrocatalytic reaction, the extra applied electric potential could inhibit the recombination of the electron-hole pair and raise the overall removal efficiency. However, when the potential was more than 0.5 V, it would reduce the photoelectrocatalytic effect because of the recombination of electrons and holes. Moreover, adding different electrolyte solutions enhanced the different degree of effects of IPA removal. Among the electrolyte solutions added, sodium sulfate improved the photoelectrocatalytic effect most significantly.