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Direct anterior approach hip arthroplasty:How to reduce complications-A 10-years single center experience and literature review

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World Journal of Orthopedics 2022年第4期13卷 388-399页

作者： Fabrizio Rivera Luca c comba Alessandro Bardelli Department of Orthopedic Trauma SS Annunziata HospitalSavigliano 12038Italy Department of Orthopedic Trauma Universitàdegli Studi di TorinoTorino 10124Italy

BAcKGROUND The direct anterior approach for total hip arthroplasty(DAA-THA)is increasing in popularity due to some advantages such as less surgical trauma,minimal dissection of soft tissues,shorter rehabilitation times,faster return to daily activities,lower incidence of *** the other hand,the literature reports a high rate of intraoperative complications,with many different rates and complication types in the published *** To analyze our complications comparing results with the literature;to report measures that we have taken to reduce complications *** All DAA-THA patients with one year minimum follow up who were operated at a single high-volume centre,between January 2010 and December 2019 were included in this retrospective *** surgeries were performed using cementless short anatomical or straight stems and press fit ***’followup was performed,at 6 wk,3 mo,then annually post-surgery with clinical and radiological *** outcomes were stem revision for aseptic loosening and all-cause stem *** outcome was intra-operative and post-operative complications *** A total of 394 patients underwent DDA-THA from January 2010 and December 2019,for a total of 412 hips;twelve patients lost to follow-up and one patient who died from causes not related to surgery were excluded from the *** average age at the time of surgery was 61 years(range from 28 to 78 years).Mean follow-up time was 64.8 mo(range 12-120 mo).Seven stems were *** cortical perforation,one trochanteric and lateral cortical wall intraoperative fracture,one diaphyseal fracture,three clinically symptomatic early subsidence and one late aseptic *** also observed 3 periprosthetic fractures B1 according to the Vancouver *** minor complications not requiring stem revision were 5 un-displaced fractures of the calcar region treated with preventive cerclage,one early infection,one case of late pos

关键词： Hip arthroplasty Direct anterior approach Short hip stem Minimally invasive surgery complications

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Status and prospects for symmetric organic redox flow batteries

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Journal of Energy chemistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam Dyker Department of chemistry University of New Brunswick

As environmental concerns from fossil fuel consumption intensify, large-scale energy storage becomes imperative for the integration of renewable sources like wind, hydro, and solar with the electrical *** flow batteries, particularly those employing organic molecules, are positioned as a key technology for this purpose. This review explores the growing field of symmetric organic redox flow batteries(ORFBs) within this context. Unlike traditional asymmetric designs based on unique active materials for each electrode, symmetric ORFBs involve a single bipolar species for both electrodes. This review highlights the benefits of a symmetric design, and categorizes five distinct classes of organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of their cell cycling and performance characteristics, the strengths and weaknesses of the diverse categories of bipolar molecules are highlighted for both solvent systems, as are opportunities for future development. This should guide new research directions and advance the development of practical symmetric ORFBs.

关键词： Redox flow battery Symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

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HEAT TREATING OF SINTERED Fe-1.5Mo-0.7c STEELS AND THEIR SLIDING WEAR BEHAVIOR

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Acta Metallurgica Sinica(English Letters) 2003年第1期16卷 51-59页

作者： J.A.Wang Y.He et al State Key Laboratory of Mechanical Transmission Chongqing University Chongqing400044China School of Materials Science and Engineering Shanghai UniversityShanghai200072China

The influence of heat treating on mechanical properties as well as on the sliding wear behavior of sintered Fe-1.5Mo-0.7c steels was experimentally studied. The microstruc-tures of sintered steels change from upper bainite to martensite, tempered martensite, pearlite and lower bainite depending on the heat treating conditions. Heat treating increases the hardness of sintered steels but high tempering temperature, i.e. 700℃, causes the hardness to be even lower than that of the as-sintered ones. The impact energy of sintered steels increases with increasing tempering temperature and arrives the highest at 700℃, while the steels tempered at 200℃ have the highest transverse rupture strength. Austempering results in fair good overall properties, such as hardness, impact energy, and transverse rupture strength. When the sintered steels were austempered, oil-quenched or tempered below 400? after quenched, the wear coefficient becomes considerably lower. Fair high hardness, such as HV30 > 380, and structures of martensite, tempered martensite or lower bainite are beneficial to lowering the wear coefficient. Under the wear test conditions given, delamination and oxidational wear are the main wear regimes for sintered Fe-1.5Mo-0.7c steels. Fe3O4 in the wear debris is beneficial to lowering wear coefficient.

关键词： heat treating sintered Fe-1.5Mo-0.7c steel sliding wear

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Acquired sensorineural hearing loss,oxidative stress,and microRNAs

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Neural Regeneration Research 2025年第9期20卷 2513-2519页

作者： Desmond A.Nunez Ru c.Guo Division of Otolaryngology–Head&Neck Surgery Department of SurgeryFaculty of MedicineThe University of British ColumbiaVancouverBCCanada Division of Otolaryngology–Head&Neck Surgery Gordon&Leslie Diamond Health Care CentreVancouver General HospitalVancouverBCCanada Faculty of Medicine–The University of British columbia VancouverBCCanada

Hearing loss is the third leading cause of human ***-related hearing loss,one type of acquired sensorineural hearing loss,is largely responsible for this escalating global health ***-induced,ototoxic,and idiopathic sudden sensorineural are other less common types of acquired hearing *** etiology of these conditions is complex and multi-fa ctorial involving an interplay of genetic and environmental *** stress has recently been proposed as a likely linking cause in most types of acquired sensorineural hearing *** non-coding RNA sequences known as microRNAs(miRNAs)have increasingly been shown to play a role in cellular hypoxia and oxidative stress responses including promoting an apoptotic *** hair cell death is a central histopathological finding in sensorineural hearing *** these cells do not regenerate in humans,it underlies the irreversibility of human age-related hearing *** EMBASE,Ovid MEDLINE,Web of Science core collection,and *** databases over the period August 1,2018 to July 31,2023 were searched with"hearing loss,""hypoxamiRs,""hypoxia,""microRNAs,""ischemia,"and"oxidative stress"text words for English language primary study publications or registered clinical *** red clinical trials known to the senior author we re also assessed.A total of 222studies were thus *** excluding duplicates,editorials,retra ctions,secondary research studies,and non-English language articles,39 primary studies and clinical trials underwent full-text *** resulted in 11 animal,in vitro,and/or human subject journal articles and 8 registered clinical trial database entries which form the basis of this narrative *** miR-34a and miR-29b levels increase with age in *** miRNAs were demonstrated in human neuroblastoma and murine cochlear cell lines to target Sirtuin 1/peroxisome proliferato r-activated receptor gamma coactivator-1-alpha(SIRT1/P Gc-1α),SIRT

关键词： hearing loss hypoxia microRNAs oxidative stress sensorineural

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Multiple sclerosis is at a checkpoint: advancing the program

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Neural Regeneration Research 2025年第3期20卷 811-812页

作者： Brandon c.Smith Jessica L.Williams Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Biological Geologicaland Environmental SciencesCleveland State UniversityClevelandOHUSA

Multiple sclerosis(MS) is a chronic inflammatory and demyelinating disease of the central nervous system(cNS). Patients with MS experience sensory and motor function loss due to myelin and/or axon damage perpetuated b... 详细信息

关键词： Hauser sclerosis damage

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Study on seismic performance enhancement in bridges based on factorial analysis

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Earthquake Engineering and Engineering Vibration 2017年第1期16卷 181-198页

作者： Abey et Somasundaran TP Sajith AS civil Engineering Department NIT Calicut Calicut Kerala 673601 India

The seismic performance of bridges depends on the ductile behavior of its column, as the deck and other substructural components except pile foundations are normally designed to be elastic to facilitate bridge retrofitting. codes such as AASHTO, caltrans, IRc： 112 etc. give guidelines for the seismic performance enhancement of columns through ductile detailing. In the present study, a methodology for the seismic performance enhancement of bridges is discussed by using a ＂Parameter-Based Influence Factor＂（PIF） developed from factorial analysis. The parameters considered in the factorial analysis are： percentage of longitudinal reinforcement （Pt）, compressive strength of concrete （f＇c）, yield strength of steel （fy）, spacing of lateral ties （5） and column height （/4）. The influence of each parameter and their combination on the limit states considered is estimated. Pushover analysis is used to evaluate the capacity of columns, considering shear failure criteria. A total of 243 （35 combinations） analysis results are compiled to develop ＇PIF＇ used in the performance enhancement process. The study also encompasses other sub-objectives such as evaluating the discrepancies in using the Importance Factor （/） in designing bridges of varied functional importance; and estimating the aspect ratio and slenderness ratio values of bridge columns for its initial sizing.

关键词： bridge retrofitting column capacity factorial analysis performance enhancement seismic performance

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collective Perspective on Advances in Dyson–Schwinger Equation QcD

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communications in Theoretical Physics 2012年第7期58卷 79-134页

作者： Adnan Bashir Ian c.clet Bruno El-Bennich craig D.Roberts Peter c.Tandy Instituto de Física y Matemticas Universidad Michoacana de San Nicols de Hidalgo Edificio C-3Ciudad UniversitariaMoreliaMichoacn 58040Mxico Physics Division Argonne National Laboratory ArgonneIllinois 60439USA center for Nuclear Research Department of PhysicsKent State UniversityKent OH 44242USA cSSM and coEPP School of Chemistry and Physics University of AdelaideAdelaide SA 5005Australia Laboratorio de Física Teórica e computao científica Universidade Cruzeiro do Sul01506-000 So PauloSPBrazil Instituto de Física Torica Universidade Estadual Paulista01140-070 So PauloSPBrazil Department of Physics Center for High Energy Physics and State Key Laboratory of Nuclear Physics and TechnologyPeking University Institut für Kernphysik Forschungszentrum JülichD-52425 JülichGermany Department of Physics Illinois Institute of TechnologyChicagoIllinois 60616-3793USA

We survey contemporary studies of hadrons and strongly interacting quarks using QcD's Dyson-Schwinger equations, addressing the following aspects: confinement and dynamical chiral symmetry breaking; the hadron spectrum; hadron elastic and transition form factors, from small-to large-Q2; parton distribution functions; the physics of hadrons containing one or more heavy quarks; and properties of the quark gluon plasma.

关键词： confinement dynamical chiral symmetry breaking Dyson-Schwinger equations hadron spectrum hadron elastic and transition form factors heavy mesons in-hadron condensates parton distribution functions quark gluon plasma UA(1)-problem

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comparative　Analysis　of　Some　Representative　Models　of　Viscosity　Versus　Pressure　in　the　case　of　Various　Hydrocarbons　and　Their　Mixtures

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Journal of Thermal Science 1996年第1期5卷 60-74页

作者： c. Boned A. et-Tahir B. Lagourette P. Xans Guanghua Gao Laboratoire Haute Presion Centre Universitaire de Recherche Scientifique Pau France Department of chemical Engineering Tsinghua University Beijing China

A critical study of some representative models has been conducted with the experimental determinations of the viscosity of ten pure substances and three binary systems measured as a function of temperature T(25℃,40℃,60℃,80℃,90℃)and pressure P(≤ 100 MPa). The pure substances were:toluene,p-xylene,m-xylene,o-xylene,methylcyclohexane, methylnaphtalene,decahydronaphtalene,phenyldodecane,heptamethylnonane and tetramethylpentadecane(pristane).The three binaries were:toluene+ tetramethylpentadecane,toluene+ methylnaphtalene and toluene+ heptamethylnonane,for molar fractions x of toluene ranging between 0 and *** three binaries are highly'contrasted' systems,*** in which the viscosities of the pure components are very different for each P,T *** all,547 experimental determinations were carried out,the 279 experimental data for viscosity of the pure substances and 268 data concerning the mixtures(x ≠0 and 1) were used to make a critical analysis of the various representative models,These included an empirical representation of variations of versus T on each isobar,a self-referencing model developed in our laboratory,a corresponding states model with one reference,various mixing rules with or without adjustable parameters,a combination of the self-referencing model and mixing rules,a method based on the Bloomfield and Dewan excess viscosity,and a group contribution method,comparison of the results showed the self-referencing method to be of particular interest,Moreover when coupled with mixing rules without adjustable parameters it was able to account satisfactorily for the variationsη(P,T,x) of the mixtures,on the simple basis of knowledge if the viscosity of the components of the system,at 25℃ and at atmospheric pressure,For all the binaries an average absolute deviation of 9.5% was *** it appears that the introduction of the pressure parameter does not alter the usual performance of each of the models tested,although they were not al equivalent a

关键词： hydrocarbons mixture viscosity density high pressure.

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IR, 1H NMR, Electronic Properties and conductivity Studies of N1 ,N4-Bis（Diphme）Benzene-l,4-Diamine chloride Zirconium （IV） [{（Ar）2Nc6H5N（Ar）2}Zrcl4] （Ar = c6H5）

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Journal of chemistry and chemical Engineering 2011年第3期5卷 259-263页

作者： Salem et. Ashoor Department of chemistry Faculty of Science Misurata University Misurata Libya

A range of new compounds such as N1,N4-bis（diphenylmethlene）benzene-l,4-diamine zirconium （IV） chloride [{（Ar）2Nc6HsN（Ar）z}Zrcl4] （Ar = c6H5） complex counting the chelating amine and chloride in position trans have been prepared. Well-defined NI,N4-bis（diphenylmethlene）benzene-l,4-diamine zirconium （IV） chloride [{（Ar）2Nc6H5N（Ar）2}Zrcl4] （Ar = c6H5） was obtained by stoichiometric addition of {（Ar）2Nc6H5N（Ar）2} （Ar = c6H5） and {Zrc14} in ethanol at reflex temperature. IR, 1H NMR, electronic properties using hyperchem program study has been improved for this compound such as bond distance, and this compound was also defined as electric conductivity which proves to be useful for conductively compound.

关键词： Electronic conductivity NI N4-bis(diphme)benzene-1 4-diamine N1 N4-bis(diphenylmethlene)benzene-1 4-diaminezirconium (IV) chloride.

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Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics

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Nano-Micro Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram D.Dongale Atul c.Khot chenjie Yao Nahyun Kim Tae Geun Kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** meshes represent a promising alternative to traditional,brittle,metal oxide conductors due to their high electrical conductivity,optical transparency,and enhanced mechanical *** this paper,we present a simple method for fabricating an ultra-transparent conducting metal oxide mesh electrode using selfcracking-assisted *** this method,we produced an electrode with ultra-transparency(97.39%),high conductance(Rs=21.24Ωsq^(−1)),elevated work function(5.16 eV),and good mechanical *** also evaluated the effectiveness of the fabricated electrodes by integrating them into organic photovoltaics,organic light-emitting diodes,and flexible transparent memristor devices for neuromorphic computing,resulting in exceptional device *** addition,the unique porous structure of the vanadium-doped indium zinc oxide mesh electrodes provided excellent flexibility,rendering them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanadium-doped indium zinc oxide mesh Organic solar cells Organic light-emitting diodes Flexible transparent memory

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