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  1. Article ; Online: Exponential Consensus of Multi-Agent Systems under Event-Triggered Impulsive Control with Actuation Delays

    Jian Zhang / Shiguo Peng

    Entropy, Vol 25, Iss 877, p

    2023  Volume 877

    Abstract: This paper investigates the exponential consensus problem for a class of nonlinear leader-following multi-agent systems using impulsive control, where impulses are generated by the event-triggered mechanism and are subjected to actuation delays. It is ... ...

    Abstract This paper investigates the exponential consensus problem for a class of nonlinear leader-following multi-agent systems using impulsive control, where impulses are generated by the event-triggered mechanism and are subjected to actuation delays. It is proved that Zeno behavior can be avoided, and by employing the linear matrix inequality technique, some sufficient conditions for realizing exponential consensus of the considered system are derived. Actuation delay is an important factor affecting the consensus of the system, and our results show that increasing the actuation delay can enlarge the lower bound of the triggering interval, while it harms the consensus. To demonstrate the validity of the obtained results, a numerical example is provided.
    Keywords actuation delays ; event-triggered mechanism ; impulsive control ; multi-agent system ; exponential consensus ; Science ; Q ; Astrophysics ; QB460-466 ; Physics ; QC1-999
    Language English
    Publishing date 2023-05-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Exponential Consensus of Multi-Agent Systems under Event-Triggered Impulsive Control with Actuation Delays.

    Zhang, Jian / Peng, Shiguo

    Entropy (Basel, Switzerland)

    2023  Volume 25, Issue 6

    Abstract: This paper investigates the exponential consensus problem for a class of nonlinear leader-following multi-agent systems using impulsive control, where impulses are generated by the event-triggered mechanism and are subjected to actuation delays. It is ... ...

    Abstract This paper investigates the exponential consensus problem for a class of nonlinear leader-following multi-agent systems using impulsive control, where impulses are generated by the event-triggered mechanism and are subjected to actuation delays. It is proved that Zeno behavior can be avoided, and by employing the linear matrix inequality technique, some sufficient conditions for realizing exponential consensus of the considered system are derived. Actuation delay is an important factor affecting the consensus of the system, and our results show that increasing the actuation delay can enlarge the lower bound of the triggering interval, while it harms the consensus. To demonstrate the validity of the obtained results, a numerical example is provided.
    Language English
    Publishing date 2023-05-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2014734-X
    ISSN 1099-4300 ; 1099-4300
    ISSN (online) 1099-4300
    ISSN 1099-4300
    DOI 10.3390/e25060877
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  3. Article ; Online: Oral verrucous xanthoma with oral lichen planus: a case report.

    Jia, Tingting / Zhang, Da / Qi, Xiangmin / Wang, Caijiao / Yan, Shiguo

    Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology

    2024  Volume 41, Issue 1, Page(s) 104–109

    Abstract: Verrucous xanthoma is a rare benign muco-cutaneous lesion, whereas oral lichen planus is a chronic inflammatory disease relatively common in the clinical setting. Verrucous xanthoma and oral lichen planus can reportedly coexist according to foreign ... ...

    Abstract Verrucous xanthoma is a rare benign muco-cutaneous lesion, whereas oral lichen planus is a chronic inflammatory disease relatively common in the clinical setting. Verrucous xanthoma and oral lichen planus can reportedly coexist according to foreign literature. Owing to the low incidence of verrucous xanthoma and the rarity of co-occurrence of these two diseases, the mechanism underlying the co-occurrence of the two diseases remains inconclusive. In this work, a case of oral verrucous xanthoma complicated with oral lichen planus was reported. Related literature was reviewed to discuss the clinical classification, pathological classification, and possible pathogenesis of the two diseases.
    MeSH term(s) Humans ; Lichen Planus, Oral ; Lichen Planus/complications ; Lichen Planus/pathology ; Carcinoma, Verrucous/complications ; Carcinoma, Verrucous/pathology ; Skin ; Xanthomatosis/complications ; Xanthomatosis/pathology
    Language Chinese
    Publishing date 2024-04-10
    Publishing country China
    Document type Case Reports ; Journal Article
    ZDB-ID 1202342-5
    ISSN 2618-0456 ; 1000-1182
    ISSN (online) 2618-0456
    ISSN 1000-1182
    DOI 10.7518/hxkq.2023.01.014
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    Zs.A 4073: Show issues Location:
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  4. Article ; Online: Layered S-Bridged Covalent Triazine Frameworks via a Bifunctional Template-Catalytic Strategy Enabling High-Performance Zinc-Ion Hybrid Supercapacitors.

    Liu, Bei / Qian, Yirong / Zhang, Jun / Yang, Mei / Liu, Yijiang / Zhang, Shiguo

    Small (Weinheim an der Bergstrasse, Germany)

    2024  , Page(s) e2310884

    Abstract: Exploring covalent triazine frameworks (CTFs) with high capacitative activity is highly desirable and challenging. Herein, the S-rich CTFs cathode is pioneeringly introduced in Zn-ion hybrid supercapacitors (ZSC), achieving outstanding capacity and ... ...

    Abstract Exploring covalent triazine frameworks (CTFs) with high capacitative activity is highly desirable and challenging. Herein, the S-rich CTFs cathode is pioneeringly introduced in Zn-ion hybrid supercapacitors (ZSC), achieving outstanding capacity and energy density, and satisfactory anti-freezing flexibility. Specifically, the S-bridged CTFs are synthesized by a bifunctional template-catalytic strategy, where ZnCl
    Language English
    Publishing date 2024-02-20
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2168935-0
    ISSN 1613-6829 ; 1613-6810
    ISSN (online) 1613-6829
    ISSN 1613-6810
    DOI 10.1002/smll.202310884
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  5. Article ; Online: Versatile Synthesis of Carbon Materials using Protic Ionic Liquids and Salts as Precursors.

    Zhang, Wei / Zhang, Yan / Ni, Wenpeng / Zhang, Shiguo

    Chemical record (New York, N.Y.)

    2023  Volume 23, Issue 8, Page(s) e202300064

    Abstract: Carbon materials (CMs) hold immense potential for applications across a wide range of fields. However, current precursors often confront limitations such as low heteroatom content, poor solubility, or complicated preparation and post-treatment procedures. ...

    Abstract Carbon materials (CMs) hold immense potential for applications across a wide range of fields. However, current precursors often confront limitations such as low heteroatom content, poor solubility, or complicated preparation and post-treatment procedures. Our research has unveiled that protic ionic liquids and salts (PILs/PSs), generated from the neutralization of organic bases with protonic acids, can function as economical and versatile small-molecule carbon precursors. The resultant CMs display attractive features, including elevated carbon yield, heightened nitrogen content, improved graphitic structure, robust thermal stability against oxidation, and superior conductivity, even surpassing that of graphite. These properties can be elaborate modulated by varying the molecular structure of PILs/PSs. In this Personal Account, we summarize recent developments in PILs/PSs-derived CMs, with a particular focus on the correlations between precursor structure and the physicochemical properties of CMs. We aim to impart insights into the foreseeable controlled synthesis of advanced CMs.
    Language English
    Publishing date 2023-04-26
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2044646-9
    ISSN 1528-0691 ; 1527-8999
    ISSN (online) 1528-0691
    ISSN 1527-8999
    DOI 10.1002/tcr.202300064
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  6. Article ; Online: High hydrostatic pressure stimulates microbial nitrate reduction in hadal trench sediments under oxic conditions.

    Yang, Na / Lv, Yongxin / Ji, Mukan / Wu, Shiguo / Zhang, Yu

    Nature communications

    2024  Volume 15, Issue 1, Page(s) 2473

    Abstract: Hadal trenches are extreme environments situated over 6000 m below sea surface, where enormous hydrostatic pressure affects the biochemical cycling of elements. Recent studies have indicated that hadal trenches may represent a previously overlooked ... ...

    Abstract Hadal trenches are extreme environments situated over 6000 m below sea surface, where enormous hydrostatic pressure affects the biochemical cycling of elements. Recent studies have indicated that hadal trenches may represent a previously overlooked source of fixed nitrogen loss; however, the mechanisms and role of hydrostatic pressure in this process are still being debated. To this end, we investigate the effects of hydrostatic pressure (0.1 to 115 MPa) on the chemical profile, microbial community structure and functions of surface sediments from the Mariana Trench using a Deep Ocean Experimental Simulator supplied with nitrate and oxygen. We observe enhanced denitrification activity at high hydrostatic pressure under oxic conditions, while the anaerobic ammonium oxidation - a previously recognized dominant nitrogen loss pathway - is not detected. Additionally, we further confirm the simultaneous occurrence of nitrate reduction and aerobic respiration using a metatranscriptomic dataset from in situ RNA-fixed sediments in the Mariana Trench. Taken together, our findings demonstrate that hydrostatic pressure can influence microbial contributions to nitrogen cycling and that the hadal trenches are a potential nitrogen loss hotspot. Knowledge of the influence of hydrostatic pressure on anaerobic processes in oxygenated surface sediments can greatly broaden our understanding of element cycling in hadal trenches.
    MeSH term(s) Nitrates ; Hydrostatic Pressure ; Microbiota ; Nitrogen
    Chemical Substances Nitrates ; Nitrogen (N762921K75)
    Language English
    Publishing date 2024-03-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-024-46897-2
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  7. Article ; Online: Abnormal H3K4 enzyme catalytic activity and neuronal morphology caused by ASH1L mutations in individuals with Tourette syndrome.

    Zhang, Cheng / Liu, Wenmiao / Xu, Lulu / Liu, Shiguo / Che, Fengyuan

    European child & adolescent psychiatry

    2024  

    Abstract: ASH1L potentially contributes to Tourette syndrome (TS) and other neuropsychiatric disorders, as our previous studies have shown. It regulates essential developmental genes by counteracting polycomb-mediated transcriptional repression, which restricts ... ...

    Abstract ASH1L potentially contributes to Tourette syndrome (TS) and other neuropsychiatric disorders, as our previous studies have shown. It regulates essential developmental genes by counteracting polycomb-mediated transcriptional repression, which restricts chromatin accessibility at target genes. ASH1L is highly expressed in the adult brain, playing a crucial role in the early stage. However, it remains unclear how ASH1L mutations carried by patients with TS participate in regulating neuronal growth processes leading to TS traits. Five TS families recruited in our study underwent comprehensive physical examinations and questionnaires to record clinical phenotypes and environmental impact factors. We validated the variants via Sanger sequencing and constructed two mutants near the catalytic domain of ASH1L. We conducted molecular modeling, in vitro assays, and primary neuron cultures to find the role of ASH1L in neuronal development and its correlation with TS. In this study, we validated five pathogenic ASH1L rare variants and observed symptoms in patients with simple tics and behavioral comorbidities. Mutations near the catalytic domain of TS patients cause mental state abnormalities and disrupt ASH1L function by destabilizing its spatial conformation, leading to decreased activity of catalytic H3K4, thereby affecting the neurite growth. We need to conduct larger-scale studies on TS patients and perform additional neurological evaluations on mature neurons. We first reported the effects of ASH1L mutations in TS patients, including phenotypic heterogeneity, protein function, and neurological growth. This information contributes to understanding the neurodevelopmental pathogenesis of TS in patients with ASH1L mutations.
    Language English
    Publishing date 2024-04-18
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1118299-4
    ISSN 1435-165X ; 1018-8827 ; 1433-5719
    ISSN (online) 1435-165X
    ISSN 1018-8827 ; 1433-5719
    DOI 10.1007/s00787-024-02437-3
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3524: Show issues Location:
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  8. Article ; Online: Molecular Engineering of Cation Solvation Structure for Highly Selective Carbon Dioxide Electroreduction.

    Ni, Wenpeng / Guan, Yongji / Chen, Houjun / Zhang, Yan / Wang, Shuangyin / Zhang, Shiguo

    Angewandte Chemie (International ed. in English)

    2023  Volume 62, Issue 37, Page(s) e202303233

    Abstract: Balancing the activation of ... ...

    Abstract Balancing the activation of H
    Language English
    Publishing date 2023-08-04
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202303233
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  9. Article ; Online: Deciphering protein-mediated underwater adhesion in an invasive biofouling ascidian: discovery, validation, and functional mechanism of an interfacial protein.

    Li, Xi / Li, Shiguo / Cheng, Jiawei / Zhang, Ying / Zhan, Aibin

    Acta biomaterialia

    2024  

    Abstract: Discovering macromolecules and understanding the associated mechanisms involved in underwater adhesion are essential for both studying the fundamental ecology of benthos in aquatic ecosystems and developing biomimetic adhesive materials in industries. ... ...

    Abstract Discovering macromolecules and understanding the associated mechanisms involved in underwater adhesion are essential for both studying the fundamental ecology of benthos in aquatic ecosystems and developing biomimetic adhesive materials in industries. Here, we employed quantitative proteomics to assess protein expression variations during the development of the distinct adhesive structure - stolon in the model fouling ascidian, Ciona robusta. We found 16 adhesive protein candidates with increased expression in the stolon, with ascidian adhesive protein 1 (AAP1) being particularly rich in adhesion-related signal peptides, amino acids, and functional domains. Western blot and immunolocalization analyses confirmed the prominent AAP1 signals in the mantle, tunic, stolon, and adhesive footprints, indicating the interfacial role of this protein. Surface coating and atomic force microscopy experiments verified AAP1's adhesion to diverse materials, likely through the specific electrostatic and hydrophobic amino acid interactions with various substrates. In addition, molecular docking calculations indicated the AAP1's potential for cross-linking via hydrogen bonds and salt bridges among Von Willebrand factor type A (VWFA) domains, enhancing its adhesion capability. Altogether, the newly discovered interfacial protein responsible for permanent underwater adhesion, along with the elucidated adhesion mechanisms, are expected to contribute to the development of biomimetic adhesive materials and anti-fouling strategies. STATEMENT OF SIGNIFICANCE: Discovering macromolecules and studying their associated mechanisms involved in underwater adhesion are essential for understanding the fundamental ecology of benthos in aquatic ecosystems and developing innovative bionic adhesive materials in various industries. Using multidisciplinary analytical methods, we identified an interfacial protein - Ascidian Adhesive Protein 1 (AAP1) from the model marine fouling ascidian, Ciona robusta. The interfacial functions of AAP1 are achieved by electrostatic and hydrophobic interactions, and the Von Willebrand factor type A (VWFA) domain-based cross-linking likely enhances AAP1's interfacial adhesion. The identification and validation of the interfacial functions of AAP1, combined with the elucidation of adhesion mechanisms, present a promising target for the development of biomimetic adhesive materials and the formulation of effective anti-fouling strategies.
    Language English
    Publishing date 2024-04-26
    Publishing country England
    Document type Journal Article
    ZDB-ID 2173841-5
    ISSN 1878-7568 ; 1742-7061
    ISSN (online) 1878-7568
    ISSN 1742-7061
    DOI 10.1016/j.actbio.2024.04.036
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  10. Article ; Online: Pterostilbene upregulates MICA/B via the PI3K/AKT signaling pathway to enhance the capability of natural killer cells to kill cervical cancer cells.

    Li, Zuoping / Zhang, Jiaru / You, Shiwan / Zhang, Jing / Zhang, Yuling / Akram, Zubair / Sun, Shiguo

    Experimental cell research

    2024  Volume 435, Issue 2, Page(s) 113933

    Abstract: Natural killer (NK) cells are triggered by the innate immune response in the tumor microenvironment. The extensive set of stimulating and inhibiting receptors mediates the target recognition of NK cells, and controls the strength of the effector reaction ...

    Abstract Natural killer (NK) cells are triggered by the innate immune response in the tumor microenvironment. The extensive set of stimulating and inhibiting receptors mediates the target recognition of NK cells, and controls the strength of the effector reaction countering specific targeted cells. Yet, lacking major MHC (histocompatibility complex) MICA/B class I chain-related proteins on the membrane of tumor cells results in the failure of NK cell recognition and ability to resist NK cell destruction. Searching databases and molecular docking suggested that in cervical cancer, pterostilbene (3,5-dimethoxy-40-hydroxystilbene; PTS) in Vaccinium corymbosum extract could constrain PI3K/AKT signaling and improving the MICA/B expression. In flow cytometry, MTT assay, viability/cytotoxicity assay, and colony development assays, PTS reduced the development of cervical cancer cells and increased apoptosis. The quantitative real-time PCR (qRT-PCR) and a Western blot indicate that PTS controlled the cytolytic action of NK cells in tumor cells via increasing the MICA/B expression, thus modifying the anti-tumor immune response in cervical cancer.
    MeSH term(s) Female ; Humans ; Proto-Oncogene Proteins c-akt/metabolism ; Phosphatidylinositol 3-Kinases/metabolism ; Uterine Cervical Neoplasms/drug therapy ; Uterine Cervical Neoplasms/metabolism ; Molecular Docking Simulation ; Cell Line, Tumor ; Histocompatibility Antigens Class I/genetics ; Killer Cells, Natural ; Signal Transduction ; Cytotoxicity, Immunologic ; Tumor Microenvironment
    Chemical Substances Proto-Oncogene Proteins c-akt (EC 2.7.11.1) ; Phosphatidylinositol 3-Kinases (EC 2.7.1.-) ; Histocompatibility Antigens Class I
    Language English
    Publishing date 2024-02-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1493-x
    ISSN 1090-2422 ; 0014-4827
    ISSN (online) 1090-2422
    ISSN 0014-4827
    DOI 10.1016/j.yexcr.2024.113933
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    Zs.A 563: Show issues Location:
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