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Effect of preoperative renin-angiotensin system blockade on vasoplegia after cardiac surgery:A systematic review with metaanalysis

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World Journal of Cardiology 2022年第4期14卷 250-259页

作者： Jean Jacques Noubiap brice Nouthe Ying Tung Sia Marco Spaziano Centre for Heart Rhythm Disorders The University of AdelaideAdelaide 5000South AustraliaAustralia Department of Medicine University of British ColumbiaVancouver V6T 1W5Canada Department of Medicine Regional Trois-Rivières Hospital(CIUSSS-MCQ)Trois-Rivières 5000Canada Department of Cardiology McGill University Health CentreMontréal QC H4A 3J1Canada

BACKGROUND Vasoplegia is a common complication of cardiac surgery but its causal relationship with preoperative use of renin angiotensin system(RAS)blockers[angiotensin converting enzyme inhibitors(ACEIs)and angiotensin receptor blockers(ARB)]is still *** To update and summarize data on the effect of preoperative use of RAS blockers on incident *** All published studies from MEDLINE,EMBASE,and Web of Science providing relevant data through January 13,2021 were identified.A random-effects metaanalysis method was used to pool estimates,and post-cardiac surgery shock was differentiated from *** Ten studies reporting on a pooled population of 15672 patients(none looking at ARBs exclusively)were included in the *** were case-control *** of ACEIs was associated with an increased risk of vasoplegia[pooled adjusted odds ratio(Aor)of 2.06,95%CI:1.45-2.93]and increased inotropic/vasopressor support requirement(pooled aOR 1.19,95%CI:1.10-1.29).Post-cardiac surgery shock was increased in the presence of left ventricular dysfunction(pooled aOR 2.32,95%CI:1.60-3.36;I249%)but not increased by the use of beta blockers(pooled aOR 0.78,95%CI:0.36-1.69;I277%).Two randomized control trials(RCTs),not eligible for the meta-analysis,did not show an association between continuation of RAS blockers and *** Preoperative continuation of ACEIs is associated with an increased need for inotropic support postoperatively and with an increased risk of vasoplegia in observational studies but not in *** absence of a consensus definition of vasoplegia should lead to the use of perioperative cardiovascular monitoring when designing RCTs to better understand this discrepancy.

关键词： Vasoplegia Cardiac surgery Coronary artery bypass graft Angiotensin converting enzyme inhibitors

After the Internet： New Technologies, Social Issues, and Public Policies

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Fudan Journal of the Humanities and Social Sciences 2017年第3期10卷 297-313页

作者： vincent Mosco Queen's University Kingston Canada

This article addresses the evolution of the Internet from a loosely organized, decentralized, and pluralistic system to the Next Internet, a tightly controlled, centralized and commodified system under corporate and government control. Drawing on a political economy perspective, it begins by addressing the technologies that comprise the Next Internet. These include Cloud Computing, Big Data Analytics, and the Internet of Things whose convergence raises significant issues in the political economy of communication and society. The paper concentrates specifically on military, environmental, economic, privacy, and labor problems. It concludes by considering the significance of viewing the Next Internet as a public utility like electricity and water.

关键词： Internet Cloud computing Big data analytics Internet of things Public utility

Peirce as Playful/Play as Pivotal

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Language and Semiotic Studies 2018年第2期4卷 5-18页

作者： vincent Colapietro Pennsylvania State University USA University of Rhode Island USA

This paper offers a portrait of C. S. Peirce as a playful thinker but also an account of play as that upon which much turns. He was, after all, a philosopher who in his maturity insisted, "a bit of fun helps thought and tends to keep it pragmatical." In doing so, however, Peirce showed in his youth how evasions of responsibility might, in their own way, often be instances of engagement at once playful and more deeply responsible than any attempt to meet the formal expectations of external authority. For the account of play as pivotal, the author draws upon Cornelius Castoriadis and, to a far greater extent, John Dewey. Moreover, he explores an apparently stark contrast between the Peircean emphasis upon habit and the Derridean celebration of play, showing that the opposition is not as thoroughgoing as it might appear. Interweaving Dewey's insights with Peirce's, the author highlights the power of intense play to melt the rigidity of sedimented habits and, thereby, to generate opportunities for habit-change. This suggests that the capacity to act in an imaginative or creative way both ineluctably draws upon habits but also inevitably modifies, often in a dramatic manner, these habits. If the ultimate logical interpretant of a sign-process is, as Peirce suggests, a habit-change, then play is truly pivotal for seeing one of the most important ways in which such alteration takes place.

关键词： Art Castoriadis Cornelius Derrida Jacques Dewey John freedom habit hinge impulse pivot purpose and purposelessness Schiller Friedrich virtue

A unified electrical model based on experimental data to describe electrical transport in carbon nanotube-based materials

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Nano Research 2020年第6期13卷 1764-1779页

作者： Yoann Dini Jérôme Faure-vincent Jean Dijon Univ.Grenoble-Alpes CEALITENDTNMF-38000GrenobleFrance Univ.Grenoble-Alpes CEACNRSIRIGSyMMESF-38000GrenobleFrance

Understanding the electrical transport in carbon nanotube(CNT)materials is one key to reach very high electrical *** CNT material resistivity(ρ(T))as function of the temperature are fully apprehended by their reduced activation W(T)=dln(ρ)/dln(T)*** to now,no model accurately fits W(T)curves,thus preventing from precisely describing the CNT material electrical *** present a new electrical transport model that perfectly fits all W(T)curves found in the literature and in our own *** material resistivities are modeled byρ(T)=ρ0(T^−α+M(1+βTγT^2)).Our model has few enough parameters(α,M,β,γ)to relate them to the CNT *** 70 K,we experimentally show that CNT material resistivity follows the Luttinger Liquid theory justifying the T^−αterm in our *** 70 K,the polynomial part becomes dominant and depends on the two different CNT fabrication techniques which lead to two very different yarn *** yarns made from floating catalyst chemical vapor deposition CNTs,the polynomial is explained by the percolation of metallic CNT ***,the polynomial of yarns spun from CNT arrays is explained by the electrical transport in CNT bundles which are the basic building blocks of this type of yarns.

关键词： carbon nanotube carbon-based materials electrical conductivity electrical transport model Luttinger Liquid

Characteristics of indirect laser-induced plasma from a thin film of oil on a metallic substrate

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Frontiers of physics 2015年第2期10卷 115-123页

作者：修俊山白雪石 vincent Motto-Ros 俞进 Department of Sciences Shandong University of Technology Zibo 255049 China Institut Lumiere Matiere UMR5306 Universite Lyon 1-CNRS Universite de Lyon 69622 Villeurbanne Cedex France

Optical emissions from the major and trace elements embodied in a transparent gel prepared from cooking oil were detected after the gel was spread in a thin film on a metallic substrate. Such emissions are due to the indirect breakdown of the coating layer. The generated plasma, a mixture of substances from the substrate, the layer, and the ambient gas, was characterized using emission spectroscopy. The characteristics of the plasma formed on the metal with and without the coating layer were investigated. The results showed that A1 emission induced from the aluminum substrates coated with oil films extends away from the target surface to ablate the oil film. This finally formed a bifurcating circulation of aluminum vapor against a spherical confinement wall in the front of the plume, which differed from the evolution of the plasma induced from the uncoated aluminum target. The strongest emissions of elements from the oil films can be observed at 2 mm above the target after a detection delay of 1.0μs. A high temperature zone has been observed in the plasma after the delay of 1.0 μs for the plasma induced from the coated metal. This higher temperature determined in the plasma allows the consideration of the sensitive detection of trace elements in liquids, gels, biological samples, or thin films.

关键词： indirect laser-induced plasma thin layer aluminum substrate higher temperature

A series solution for surface motion amplification due to underground twin tunnels:incident SV waves

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Earthquake Engineering and Engineering Vibration 2003年第2期2卷 289-298页

作者：梁建文张浩 vincent W Lee Department of Civil Engineering Tianjin UniversityTianjin 300072China Professor Department of Civil Engineering Tianjin UniversityTianjin 300072China Graduate Student Department of Civil Engineering University of Southern CaliforniaLos AngelesCA 90089-2531USA Professor

A series solution of displacement response of the ground surface in the presence of underground twin tunnels subjected to excitation of incident plane SV waves is derived by using Fourier-Bessel series expansion *** numerical parametric study shows that underground twin tunnels significantly amplify the nearby surface ground *** is suggested that the effect of subways on ground motion should be considered when the subways are planned and designed.

关键词： underground twin tunnels surface motion plane SV wave scattering series solution

Activity Enhancement of MgCl2-supported Ziegler-Natta Catalysts by Lewis-acid Pre-treatment for Ethylene Polymerization

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Chinese Journal of Polymer Science 2019年第10期37卷 1031-1038,I0006页

作者： Matthieu Humbert Sébastien Norsic Jean Raynaud vincent Monteil UMR 5265 Laboratoire de Chimie Catalyse Polymères et Procédés (C2P2) Université de Lyon

Ziegler-Natta precatalysts were synthetized from Lewis-base-modified-MgCl2 supports and treated by various Lewis acids,prior to activation by triethylaluminum, in order to increase their activity in ethylene polymerization. BCl3 provided the highest increase in activity. Interestingly, polymerization results showed no substantial modification of polymer properties, which is consistent with that Lewis acid only promotes the creation of new active sites, after activation by TEA, possessing very similar features to the original ones achievable with conventional precatalysts(i.e. without Lewis-acid treatment).

关键词： Ziegler-Natta catalysis Ethylene polymerization Heterogeneous catalysis Lewis acids

Control of a Unified Chaotic System via Single Variable Feedback

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Chinese Physics Letters 2009年第9期26卷 65-68页

作者：郭荣伟 U. E. vincent Department of Mathematical and Physical Sciences Shandong Institute of Light Industry Jinan 250353 Institute of Theoretical Physics Technical University of Clausthal Arnold-Sommer Str. 6 38678 Clausthal-Zellerfeld Germany Department of Physics Olabisi Onabanjo University Ago-Iwoye Nigeria

Based on the LaSalle invariance principle, we propose a simple adaptive-feedback for controlling the unified chaotic system. We show explicitly with numerical proofs that our method can easily achieve the control of chaos in the unified chaotic system using only a single variable feedback. The present controller, to our knowledge, is the simplest control scheme for controlling a unified chaotic system.

关键词： sea surface nonliear interaction numerical method

An experimental study on shock wave mitigation capability of polyurea and shear thickening fluid based suspension pads

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Defence Technology（防务技术） 2018年第1期14卷 12-18页

作者： Andi Haris Heow Pueh Lee vincent Beng Chye Tan Department of Mechanical Engineering National University of Singapore

The present experimental study investigates shock wave mitigation capability of potentially new personal protective equipment(PPE) suspension pads made from polyurea and shear thickening fluid(STF).The shock tube test results show that when placed behind Twaron fabric systems with thickness ranging from 2 mm to 18 mm, the replacement of conventional flexible foam pad with STF and STF-infused foam pads with the same thickness of 20 mm greatly reduces the normalized peak pressure(by about 72% for each pad). However, this benefit is partially offset by a large increase in the normalized impulse(by about78% for the STF pad and 131% for the STF-infused foam pad) which may cause the shock wave mitigation performance of these two pads to become less effective. Interestingly, the use of 4 mm thick polyurea pad can greatly reduce the normalized peak pressure and impulse as well(by about 74% and 49%, respectively). These results reveal that among the potentially new suspension pads tested, the polyurea pad displays the best shock wave mitigation performance. Therefore, polyurea has potential for use as a suspension pad in personal protective equipment requiring shock wave mitigation capability such as fabric ballistic vests, bomb suits and combat helmets.

关键词： Shock wave mitigation Polyurea Shear thickening fluid Suspension pad Ballistic fabric Primary blast injuries