The Adsorption Process and Mechanism of Benzo[a]pyrene in Agricultural Soil Mediated by Microplastics.

The coexistence of microplastics and benzo[a]pyrene (BaP) in the environment, and their interactions within agricultural soils in particular, have garnered widespread attention. This study focused on the early-stage interactions between microplastics and BaP, aiming to uncover their initial adsorption mechanisms. Despite the significant environmental toxicity of both pollutants, research on their mutual interactions in soil is still limited.

Effect of Temperature Gradient and Cooling Rate on the Solidification of Iron: A Molecular Dynamics Study.

In this study, molecular dynamics (MD) simulations were employed to compare the effects of different solidification conditions on the solidification behaviour, stress distribution, and degree of crystallization of iron. The results indicate significant differences in nucleation and microstructural evolution between the two solidification methods. In the homogeneous temperature field, the solidification of iron is characterized by instantaneous nucleation.

Functions of Insulin-like Peptide Genes ( and ) in Female Reproduction of the Predatory Ladybird (Coleoptera: Coccinellidae).

Insulin-like peptides (ILPs) are important peptide hormones in insects, particularly involved in regulating physiological processes such as growth, development, and reproduction. However, the specific roles of ILPs in the reproduction of natural enemy insects remain unknown. In this study, two ILP genes, and , were cloned and their functions were analyzed in female L.

Potential Involvement of (Enterobacteriales, Enterobacteriaceae) in Biotype Differentiation of (Hemiptera: Aphididae).

, an obligate endosymbiont of most aphid species, can influence aphids' host adaptability through amino acid metabolism, potentially mediating biotype differentiation. However, its role in the biotype differentiation of remains unclear. To address this issue, six biotypes were tested in this study.

Charactering Neural Spiking Activity Evoked by Acupuncture Through Coupling Generalized Linear Model.

Acupuncturing the ST36 acupoint can evoke a responding activity in the spinal dorsal root ganglia and generate spikes. In order to identify the responding mechanism of different acupuncture manipulations, in this paper the spike history of neurons is taken as the starting point and the coupling generalized linear model is adopted to encode the neuronal spiking activity evoked by different acupuncture manipulations. Then, maximum likelihood estimation is used to fit the model parameters and estimate the coupling parameters of stimulus, the self-coupling parameters of the neuron's own spike history and the cross-coupling parameters of other neurons' spike history.