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Journal of Oceanology and limnology 2025年第1期43卷 134-146页

作者： yi’nan SUN Jingshen li yawen fan xinxin lu College of life Science and technology Harbin Normal UniversityHarbin 150025China Key laboratory of Aquatic Organisms Harbin Normal UniversityHarbin 150025China

the functional diversity index of a phytoplankton body has gradually become a new mean of measuring and *** explore the response of phytoplankton taxonomy and the functional diversity index to interannual environmental changes,a survey on the structure of the phytoplankton community and water physicochemical characteristics of the water was carried out at 28 sampling points in the Harbin section of the Songhua River for three consecutive years in every May from 2021 to *** taxonomy diversity index and the functional diversity index were ***,the relationship between the structure of the characteristics of the community and environmental factors was explored;secondly,we reveal the responses of taxonomic and functional diversity indices to different habitats between years;finally,we explore the main environmental factors that control the taxonomic and functional diversity indices of *** show that,initially,environmental factors in water changes caused by different water levels between years affected the composition of phytoplankton ***,by comparing the taxonomic diversity index and the functional diversity index on a time scale,we found that the taxonomic diversity index was more responsive to environmental ***,the main environmental factors on the phytoplankton taxonomic diversity index were dissolved oxygen,taxonomic diversity index,and specific conductivity,and the main environmental factors that affected the functional diversity index were dissolved oxygen,turbidity,and water *** study reveals the important role of the taxonomic diversity index in river water quality evaluation,obtained new information on the relative precision of the taxonomic diversity index and the functional diversity index in the evaluation of ecological health of the water,and provided a reliable tool for monitoring river water quality based on aquatic organisms.

关键词： Songhua River Basin phytoplankton functional diversity biodiversity index watershed ecology

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COMPrompter: reconceptualized segment anything model with multiprompt network for camouflaged object detection

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Science China(Information Sciences) 2025年第1期68卷 189-203页

作者： xiaoqin ZHANG Zhenni yU li zhao Deng-Ping fan Guobao xIAO Zhejiang Province Key laboratory of Intelligent Informatics for Safety and Emergency Wenzhou University Nankai International Advanced Research Institute (SHENZHEN FUtIAN) College of Computer Science Nankai University School of Computer Science and technology Tongji University

We rethink the segment anything model(SAM) and propose a novel multiprompt network called COMPrompter for camouflaged object detection(COD). SAM has zero-shot generalization ability beyond other models and can provide an ideal framework for COD. Our network aims to enhance the single prompt strategy in SAM to a multiprompt strategy. to achieve this, we propose an edge gradient extraction module, which generates a mask containing gradient information regarding the boundaries of camouflaged objects. this gradient mask is then used as a novel boundary prompt, enhancing the segmentation process. thereafter, we design a box-boundary mutual guidance module, which fosters more precise and comprehensive feature extraction via mutual guidance between a boundary prompt and a box prompt. this collaboration enhances the model's ability to accurately detect camouflaged objects. Moreover, we employ the discrete wavelet transform to extract high-frequency features from image embeddings. the high-frequency features serve as a supplementary component to the multiprompt ***, our COMPrompter guides the network to achieve enhanced segmentation results, thereby advancing the development of SAM in terms of COD. Experimental results across COD benchmarks demonstrate that COMPrompter achieves a cutting-edge performance, surpassing the current leading model by an average positive metric of 2.2% in COD10K. In the specific application of COD, the experimental results in polyp segmentation show that our model is superior to top-tier methods as well. the code will be made available at https://***/guobaoxiao/COMPrompter.

关键词： segment anything model camouflaged object detection boundary prompt

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the effect of fine grits and fine debris concentrations on the MlVSS/MlSS ratio of an activated sludge system

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Journal of Environmental Sciences 2025年第1期147卷 607-616页

作者： zhao Jiang Zhiheng xia Shuai liu QiWei Haitao fan lu Qi Guohua liu Hongchen Wang low-carbon Water Environment technology Research Center School of Environment&Natural ResourcesRenmin University of ChinaBeijing 100872China

this study embarks on an explorative investigation into the effects of typical concentrations and varying particle sizes of fine grits(FG,the involatile portion of suspended solids)and fine debris(FD,the volatile yet unbiodegradable fraction of suspended solids)within the influent on themixed liquor volatile suspended solids(MlVSS)/mixed liquor suspended solids(MlSS)ratio of an activated sludge *** meticulous experimentation,it was discerned that the addition of FG or FD,the particle size of FG,and the concentration of FD bore no substantial impact on the pollutant removal efficiency(denoted by the removal rate of COD and ammonia nitrogen)under constant operational ***,a notable decrease in the MlVSS/MlSS ratio was observed with a typical FG concentration of 20 mg/l,with smaller FG particle sizes exacerbating this ***,variations in FD concentrations influenced both MlSS andMlVSS/MlSS ratios;a higher FD concentration led to an increased MlSS and a reduced MlVSS/MlSS ratio,indicating FD accumulation in the system.A predictive model for MlVSS/MlSS was constructed based on quality balance calculations,offering a tool for foreseeing the MlVSS/MlSS ratio under stable long-term influent conditions of FG and *** model,validated using data from the BxH wastewater treatment plant(WWtP),showcased remarkable accuracy.

关键词： Fine grits and fine debris Activated sludge system MlVSS/MlSS ratio Predictive model

Supply Chain Disruption and Import Strategy:Evidence from the Great East Japan Earthquake

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China & World Economy 2025年第1期33卷 132-161页

作者： fan lu Zhicong li xinrong Cai School of Public Finance and taxation Central University of Finance and EconomicsChina School of Finance and taxation Zhongnan University of Economics and LawChina

Global supply chain networks foster collaboration but accelerate cross-border risk *** study investigates the effect of the 2011 East Japan earthquake on Chinese firms'import *** findings reveal that the disruption led to a shift toward supply chain concentration,with firms reducing the diversification of import *** was a slight increase in the number of countries from which firms sourced imports but import shares became more concentrated,reflecting a reliance on fewer,centralized *** affected by the earthquake prioritized long-term partnerships and sought suppliers in regions with lower natural disaster risks,aiming to mitigate supply chain vulnerabilities and reduce switching *** findings also show that state-owned enterprises,private firms,and research and development-intensive firms were more inclined to centralize their import *** suggests that these firms,leveraging their larger scale,substantial resources,and robust risk management strategies,favored a more concentrated sourcing approach in order to better control their supply chains and ensure stability in the face of global disruptions.

关键词： firm behavior import strategy natural disaster supply chain

Robust free-base and metalated corrole radicals with reduction-induced emission

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Chinese Chemical letters 2025年第2期36卷 426-431页

作者： Pengfei li Chulin Qu fan Wu Hu Gao Chengyan zhao yue zhao Zhen Shen State Key laboratory of Coordination Chemistry Collaborative Innovation Center of Advanced MicrostructuresSchool of Chemistry and Chemical EngineeringNanjing University School of Chemistry and Materials Science Nanjing Normal University College of Materials Science and Engineering Nanjing Forestry University

Preparing free-base porphyrinoid radicals that can function as coordination ligands is a challenging task. Here we report the synthesis of a stable, free-base benzocorrole(BC) radical containing only two inner NH protons via a retro-Diels-Alder conversion. the radical character of BC was fully supported by crystallographic analysis, spectroscopic evidence, and theoretical calculations. this neutral radical ligand allowed easy insertion of Zn(Ⅱ), Ga(Ⅲ), and Pd(Ⅱ) ions to produce radical complexes. All these radicals exhibited luminescence-on responses under weak reducing atmosphere, corresponding to the conversion to their aromatic anions. the red fluorescence was observed for BC and its Zn(Ⅱ) and Ga(Ⅲ) complexes,and the near-infrared phosphorescence(>900 nm) was detected for Pd(Ⅱ) complex at room ***, Ga(Ⅲ) corrole exhibited a variation in fluorescence in response to axial coordination. Our findings provide a promising radical platform for coordination and developing novel functional materials with switchable spin and emission.

关键词： luminescence Macrocyclic ligands Porphyrinoids Radicals Redox chemistry

long non-coding RNAs as promising targets for controlling disease vector mosquitoes

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Insect Science 2025年第1期32卷 24-41页

作者： yujiao Han Qian Pu ting fan tianqi Wei yankun xu lu zhao Shiping liu State Key laboratory of Resource Insects Southwest UniversityChongqing400716 China

Hematophagous female mosquitoes are important vectors of numerous devastating human diseases,posing a major public health *** prevention and control of mosquito-borne diseases rely considerably on progress in understanding the molecular mechanisms of various life activities,and accordingly,the molecules that regulate the various life activities of mosquitoes are potential targets for implementing future vector control *** long non-coding RNAs(lncRNAs)have been identified in mosquitoes and significant progress has been made in determining their ***,we present a comprehensive overview of the research advances on mosquito lncRNAs,including their molecular identification,function,and interaction with other non-coding RNAs,as well as their synergistic regulatory roles in mosquito life *** also highlight the potential roles of competitive endogenous RNAs in mosquito growth and development,as well as in insecticide resistance and virus–host *** into the biological functions and mechanisms of lncRNAs in mosquito life activities,viral replication,pathogenesis,and transmission will contribute to the development of novel drugs and safe vaccines.

关键词： competitive endogenous RNAs(ceRNAs) insecticide resistance long noncoding RNA(lncRNA) mosquito mosquito-borne diseases pathogen-host interaction

On the interfacial behavior of a one-dimensional hexagonal piezoelectric quasicrystal film based on the beam theory

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Applied Mathematics and Mechanics(English Edition) 2025年第2期46卷 289-304页

作者： Wenkai ZHANG C.S.lu Minghao zhao Cuiying fan Huayang DANG School of Mechanics and Safety Engineering Zhengzhou University School of Civil and Mechanical Engineering Curtin University School of Mechanical Engineering Zhengzhou University

In this paper, the mechanical response of a one-dimensional (1D) hexagonal piezoelectric quasicrystal (PQC) thin film is analyzed under electric and temperature loads. Based on the Euler-Bernoulli beam theory, a theoretical model is proposed, resulting in coupled governing integral equations that account for interfacial normal and shear stresses. to numerically solve these integral equations, an expansion method using orthogonal Chebyshev polynomials is employed. the results provide insights into the interfacial stresses, axial force, as well as axial and vertical deformations of the PQC ***, fracture criteria, including stress intensity factors, mode angles, and the Jintegral, are evaluated. the solution is compared with the membrane theory, neglecting the normal stress and bending deformation. Finally, the effects of stiffness and aspect ratio on the PQC film are thoroughly discussed. this study serves as a valuable guide for controlling the mechanical response and conducting safety assessments of PQC film systems.

关键词： one-dimensional (1D) hexagonal piezoelectric quasicrystal (PQC) film beam theory electric and temperature loads Chebyshev polynomial interfacial behavior O343.1

let-7 microRNA targets BmCentrin to modulate the development and functionality of the middle silk gland in the silkworm,Bombyx mori

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Insect Science 2025年第1期32卷 95-114页

作者： yankun xu Na Du lili xu lu zhao ting fan tianqi Wei Qian Pu Shiping liui State Key laboratory of Resource Insects Southwest UniversityChongqingChina

the silk gland of the silkworm Bombyx mori serves as a valuable model for investigating the morphological structure and physiological functions of *** studies have demonstrated the notable regulatory role of let-7 microRNA in the silk gland,but its specific molecular mechanism remains to be elucidated across different segments of this *** this study,we further investigated the functional mechanism of let-7 in the middle silk gland(MSG).the MSG of a let-7 knockout strain was analyzed using a combined proteomic and metabolomic technique,revealing the enrichment of differential proteins and metabolites in the DNA synthesis and energy metabolism *** was identified as a novel target gene of let-7 in the MSG,and its downregulation inhibited the proliferation of BmN4-SID1 cells,which is exactly opposite to the role of let-7 in these ***/Cas9 genome editing and transgenic technologies were employed to manipulate BmCentrin in the *** of BmCentrin led to severe MSG atrophy,whereas the overexpression of BmCentrin resulted in beaded *** measurements of these knockout or overexpression strains revealed significant changes in the expression levels of sericin protein genes,the weight of the cocoon and the mechanical properties of the *** the biological role of BmCentrin in the silk gland offers valuable insights for elucidating the molecular mechanisms by which let-7 controls silk gland development and silk protein synthesis in the silkworm.

关键词： BmCentrin Bombyx mori CRISPR/Cas9 genome editing let-7 microRNA middle silk gland transgenic overexpression

Investigation of oxidative potential of fresh and O_(3)-aging PM_(2.5)from various emission sources across urban and rural regions

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Journal of Environmental Sciences 2025年第5期151卷 608-615页

作者： Shuaishuai Ma Dongsheng Cheng yingying tang younuo fan Qiong li Chengxiang He Zhiqing zhao tianyou xu College of Chemical and Material Engineering Quzhou UniversityQuzhou 324000China Shanghai Key laboratory of Atmospheric Particle Pollution and Prevention Department of Environmental Science&EngineeringFudan UniversityShanghai 200433China

Inhalation of atmospheric PM_(2.5)can induce the generation of excessive reactive oxygen species(ROS)in human alveoli,triggering local and systemic inflammation,which can directly or indirectly result in respiratory and cardiovascular *** this study,we assessed the oxidative potential(OP)of fresh and O_(3)-aged PM_(2.5)particles from various urban and rural emission sources using the dithiothreitol(Dtt)*** results revealed variations in the OP of fresh PM_(2.5)among different emission sources,with biomass burning sources exhibiting the highest OP,followed by industrial areas,vehicular emissions,cooking emissions,and suburban areas,***-soluble organics and transition metals might potentially exert significant influence on particle OP.O_(3)aging notably decreased the OP of PM_(2.5)particles,possibly due to the oxidation of highly Dtt-active components into low redox-active small ***,the evolution of OP in different PM_(2.5)components,including methanol-soluble and insoluble fractions,exhibited distinct responses to O_(3)aging for source-oriented PM_(2.5).Additionally,differences in chemical composition between fresh and aged PM_(2.5)were further elucidated through measurements of component-dependent hygroscopic behaviors and phase *** study systematically delineates variances in the toxic potential of fresh and O_(3)-aged PM_(2.5)from various anthropogenic *** findings highlight the intrinsic compositional dependence of particle OP and provide essential insights for assessing the health effects of source-oriented PM_(2.5),as well as for formulating human health protection policies.

关键词： Atmospheric PM_(2.5) Oxidative potential Emission sources Dtt assay O_(3)aging