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  1. Article ; Online: Current-Induced Creation of Topological Vortex Rings in a Magnetic Nanocylinder.

    Liu, Yizhou / Nagaosa, Naoto

    Physical review letters

    2024  Volume 132, Issue 12, Page(s) 126701

    Abstract: Vortex rings are ubiquitous topological structures in nature. In solid magnetic systems, their formation leads to intriguing physical phenomena and potential device applications. However, realizing these topological magnetic vortex rings and manipulating ...

    Abstract Vortex rings are ubiquitous topological structures in nature. In solid magnetic systems, their formation leads to intriguing physical phenomena and potential device applications. However, realizing these topological magnetic vortex rings and manipulating their topology on demand have still been challenging. Here, we theoretically show that topological vortex rings can be created by a current pulse in a chiral magnetic nanocylinder with a trench structure. The creation process involves the formation of a vortex ring street, i.e., a chain of magnetic vortex rings with an alternative linking manner. The created vortex rings can be bounded with monopole-antimonopole pairs and possess a rich and controllable linking topology (e.g., Hopf link and Solomon link), which is determined by the duration and amplitude of the current pulse. Our proposal paves the way for the realization and manipulation of diverse three-dimensional (3D) topological spin textures and could catalyze the development of 3D spintronic devices.
    Language English
    Publishing date 2024-04-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.132.126701
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  2. Article ; Online: A device-related fistula between coronary artery and left atrial appendage following left atrial appendage closure: Case presentation.

    Liu, Xiaohua / Xu, Yizhou

    Journal of cardiovascular electrophysiology

    2024  Volume 35, Issue 5, Page(s) 1046–1049

    Abstract: Introduction: Left atrial appendage (LAA) closure (LAAC) is considered a viable alternative to anticoagulation therapy for stroke prevention in nonvalvular atrial fibrillation, we report a case with a less common shunt resulting from a device-related ... ...

    Abstract Introduction: Left atrial appendage (LAA) closure (LAAC) is considered a viable alternative to anticoagulation therapy for stroke prevention in nonvalvular atrial fibrillation, we report a case with a less common shunt resulting from a device-related coronary artery-appendage fistula (CAAF) following LAAC.
    Methods and results: A 67-year-old male with a history of LAAC was referred to our emergency room with recurrent chest pain and palpitations and was diagnosed with ischemic angina pectoris. Subsequent coronary angiography (CAG) revealed 70% in-stent restenosis and an abnormal shunt of contrast originating from the left circumflex artery (LCA) to the LAA tip which did not exist before. The restenosis was successfully dilated using a drug-coated balloon, the procedure was safely completed without pericardial effusion. The patient had been implanted with a LAmbre occluder (Lifetech Scientific Corp.) in the previous LAAC procedure. This occluder had a lobe-disk design, and the distal umbrella was not fully opened after release, particularly in the lower portion. This could make the hooks embedded on the umbrella contact the LAA wall more tightly, possibly resulting in microperforation and coincidental impingement of the LCA. The epicardial adipose and hyperplastic tissue then chronically wrapped the perforated site, prevented blood outflow into the epicardium, and ultimately formed a CAAF.
    Conclusion: CAAF is a rare complication after LAAC but may be underestimated, especially for lobe-disk designed occluders. Therefore, CAG is perhaps necessary to detect this complication.
    MeSH term(s) Aged ; Humans ; Male ; Atrial Appendage/diagnostic imaging ; Atrial Appendage/physiopathology ; Atrial Fibrillation/physiopathology ; Atrial Fibrillation/diagnosis ; Atrial Fibrillation/surgery ; Cardiac Catheterization/adverse effects ; Cardiac Catheterization/instrumentation ; Coronary Vessels/diagnostic imaging ; Left Atrial Appendage Closure ; Prosthesis Design ; Septal Occluder Device/adverse effects ; Treatment Outcome ; Vascular Fistula/diagnostic imaging ; Vascular Fistula/etiology
    Language English
    Publishing date 2024-03-11
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1025989-2
    ISSN 1540-8167 ; 1045-3873
    ISSN (online) 1540-8167
    ISSN 1045-3873
    DOI 10.1111/jce.16224
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    Zs.A 2863: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (2.OG)
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  3. Article ; Online: Progress and perspective on the topological spin textures in two-dimensional van der Waals magnets.

    Xu, Hongjun / Liu, Yizhou / Finocchio, Giovanni / Wang, Kang L / Yu, Guoqiang

    Science bulletin

    2024  

    Language English
    Publishing date 2024-04-03
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2816140-3
    ISSN 2095-9281 ; 2095-9273
    ISSN (online) 2095-9281
    ISSN 2095-9273
    DOI 10.1016/j.scib.2024.04.005
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  4. Book ; Online: When Does Feature Learning Happen? Perspective from an Analytically Solvable Model

    Xu, Yizhou / Ziyin, Liu

    2024  

    Abstract: We identify and solve a hidden-layer model that is analytically tractable at any finite width and whose limits exhibit both the kernel phase and the feature learning phase. We analyze the phase diagram of this model in all possible limits of common ... ...

    Abstract We identify and solve a hidden-layer model that is analytically tractable at any finite width and whose limits exhibit both the kernel phase and the feature learning phase. We analyze the phase diagram of this model in all possible limits of common hyperparameters including width, layer-wise learning rates, scale of output, and scale of initialization. We apply our result to analyze how and when feature learning happens in both infinite and finite-width models. Three prototype mechanisms of feature learning are identified: (1) learning by alignment, (2) learning by disalignment, and (3) learning by rescaling. In sharp contrast, neither of these mechanisms is present when the model is in the kernel regime. This discovery explains why large initialization often leads to worse performance. Lastly, we empirically demonstrate that discoveries we made for this analytical model also appear in nonlinear networks in real tasks.
    Keywords Computer Science - Machine Learning ; Computer Science - Artificial Intelligence
    Subject code 006
    Publishing date 2024-01-13
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Comparative Responses of Orange-Foot and Common-Foot

    Ke, Yizhou / Liu, Shuyi / Zeng, Wencui / Gao, Xiaolong / Cai, Mingyi / You, Weiwei

    Animals : an open access journal from MDPI

    2024  Volume 14, Issue 2

    Abstract: Carotenoids, known to enhance survival, heat tolerance, and bacterial resistance, play an essential role in the nutrition of economically important aquatic animals. This study specifically examined their impact as feed additives on the ... ...

    Abstract Carotenoids, known to enhance survival, heat tolerance, and bacterial resistance, play an essential role in the nutrition of economically important aquatic animals. This study specifically examined their impact as feed additives on the abalone
    Language English
    Publishing date 2024-01-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani14020180
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  6. Article ; Online: Investigating the Impact of Humic Acid on Copper Accumulation in

    Cai, Mingyi / Ma, Tian / Que, Huayong / Shi, Bo / Liu, Xiande / Ke, Yizhou

    Toxics

    2024  Volume 12, Issue 1

    Abstract: In aquatic ecosystems, the interaction between heavy metals and dissolved organic carbon (DOC) plays a pivotal role in modifying the bioavailability of these metals. This study, employing a toxicokinetic-toxicodynamic model, delves into the interactive ... ...

    Abstract In aquatic ecosystems, the interaction between heavy metals and dissolved organic carbon (DOC) plays a pivotal role in modifying the bioavailability of these metals. This study, employing a toxicokinetic-toxicodynamic model, delves into the interactive effects of humic acid (HA), a significant component of DOC, on the bioaccumulation and toxicity of copper (Cu) in the estuarine economic bivalve
    Language English
    Publishing date 2024-01-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2733883-6
    ISSN 2305-6304 ; 2305-6304
    ISSN (online) 2305-6304
    ISSN 2305-6304
    DOI 10.3390/toxics12010074
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  7. Article ; Online: Maximum Spreading Diameter of Bouncing Droplets at Ultralow Weber Numbers.

    Liu, Yang / Liu, Yizhou / Chen, Min

    Langmuir : the ACS journal of surfaces and colloids

    2023  Volume 39, Issue 22, Page(s) 7922–7929

    Abstract: In the present work, we study the maximum spreading of bouncing droplets in the capillary regime at ultralow Weber numbers with a fixed static contact angle. In the ultralow Weber number region, experiments reveal that existing spreading laws are ... ...

    Abstract In the present work, we study the maximum spreading of bouncing droplets in the capillary regime at ultralow Weber numbers with a fixed static contact angle. In the ultralow Weber number region, experiments reveal that existing spreading laws are inapplicable because of gravity exclusion and change in deformation shape. We propose a theoretical scaling law based on energy conservation, modeling the deformed droplet as an ellipsoid with gravity effects. The proposed scaling law indicates the competition between gravity and inertia at ultralow Weber numbers and distinguishes their dominant regimes. By integrating higher-Weber-number regions, we reveal that viscosity is prominent in the previously assumed inviscid regime. Furthermore, we devise a phase diagram to clarify different impact regimes on the basis of energy analysis.
    Language English
    Publishing date 2023-05-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.3c00774
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  8. Article ; Online: Corrigendum to "Wedelolactone induces apoptosis and pyroptosis in retinoblastoma through promoting ROS generation" [Int. Immunopharmacol. 111 (2022) 108855].

    Jiang, Hua / Niu, Chuanqiang / Guo, Yiqun / Liu, Zhenyin / Jiang, Yizhou

    International immunopharmacology

    2023  Volume 125, Issue Pt A, Page(s) 111146

    Language English
    Publishing date 2023-11-04
    Publishing country Netherlands
    Document type Published Erratum
    ZDB-ID 2043785-7
    ISSN 1878-1705 ; 1567-5769
    ISSN (online) 1878-1705
    ISSN 1567-5769
    DOI 10.1016/j.intimp.2023.111146
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5408: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
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  9. Article ; Online: Robust fragment-based method of calculating hydrogen atom transfer activation barrier in complex molecules.

    Liu, Yizhou / Pickard, Frank C / Sluggett, Gregory W / Mustakis, Iasson G

    Physical chemistry chemical physics : PCCP

    2024  Volume 26, Issue 3, Page(s) 1869–1880

    Abstract: Dynamic processes driven by non-covalent interactions (NCI), such as conformational exchange, molecular binding, and solvation, can strongly influence the rate constants of reactions with low activation barriers, especially at low temperatures. Examples ... ...

    Abstract Dynamic processes driven by non-covalent interactions (NCI), such as conformational exchange, molecular binding, and solvation, can strongly influence the rate constants of reactions with low activation barriers, especially at low temperatures. Examples of this may include hydrogen-atom-transfer (HAT) reactions involved in the oxidative stress of an active pharmaceutical ingredient (API). Here, we develop an automated workflow to generate HAT transition-state (TS) geometries for complex and flexible APIs and then systematically evaluate the influences of NCI on the free activation energies, based on the multi-conformational transition-state theory (MC-TST) within the framework of a multi-step reaction path. The two APIs studied: fesoterodine and imipramine, display considerable conformational complexity and have multiple ways of forming hydrogen bonds with the abstracting radical-a hydroxymethyl peroxyl radical. Our results underscore the significance of considering conformational exchange and multiple activation pathways in activation calculations. We also show that structural elements and NCIs outside the reaction site minimally influence TS core geometry and covalent activation barrier, although they more strongly affect reactant binding and consequently the overall activation barrier. We further propose a robust and economical fragment-based method to obtain overall activation barriers, by combining the covalent activation barrier calculated for a small molecular fragment with the binding free energy calculated for the whole molecule.
    Language English
    Publishing date 2024-01-17
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d3cp05028a
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  10. Article ; Online: Impact of anemia on clinical outcomes in patients with acute heart failure: A systematic review and meta-analysis.

    Pan, Jiahui / Liu, Meijun / Huang, Jiamin / Chen, Liuying / Xu, Yizhou

    Clinical cardiology

    2024  Volume 47, Issue 2, Page(s) e24228

    Abstract: Anemia and acute heart failure (AHF) frequently coexist. Several published studies have investigated the association of anemia with all-cause mortality and all-cause heart failure events in AHF patients, but their findings remain controversial. This ... ...

    Abstract Anemia and acute heart failure (AHF) frequently coexist. Several published studies have investigated the association of anemia with all-cause mortality and all-cause heart failure events in AHF patients, but their findings remain controversial. This study is intended to evaluate the relationship between anemia and AHF. We systematically searched PubMed, Medline, the Cochrane Library, Embase, and Elsevier's ScienceDirect databases until July 30, 2023, and selected prospective or retrospective cohort studies to evaluate anemia for AHF. A total of nine trials involving 29 587 AHF patients were eventually included. Pooled analyses demonstrated anemia is associated with a higher risk of all-cause heart failure event rate (OR: 1.82, 95% CI: 1.58-2.10, p < .01) and all-cause mortality, both for short-term (30 days) all-cause mortality (OR: 1.91, 95% CI: 1.31-2.79, p < .01) and long-term (1 year) all-cause mortality (OR: 1.72, 95% CI: 1.27-2.32, p < .01). The evidence from this meta-analysis suggested that anemia may be an independent risk factor for all-cause mortality and all-cause heart failure events in patients with AHF and might emphasize the importance of anemia correction before discharge.
    MeSH term(s) Humans ; Prospective Studies ; Retrospective Studies ; Anemia/complications ; Anemia/diagnosis ; Anemia/epidemiology ; Databases, Factual ; Heart Failure/complications ; Heart Failure/diagnosis ; Heart Failure/epidemiology
    Language English
    Publishing date 2024-02-24
    Publishing country United States
    Document type Meta-Analysis ; Systematic Review ; Journal Article ; Review
    ZDB-ID 391935-3
    ISSN 1932-8737 ; 0160-9289
    ISSN (online) 1932-8737
    ISSN 0160-9289
    DOI 10.1002/clc.24228
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    Zs.A 1423: Show issues Location:
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