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Successful hip revision surgery following refracture of a modern femoral stem using a cortical window osteotomy technique:A case report and review of literature

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World Journal of Methodology 2023年第5期13卷 502-509页

作者： Carlos M Lucero Juan B Luco Agustin Garcia-Mansilla Pablo A Slullitel Gerardo Zanotti Fernando Comba Martin A Buttaro centro de cadera"sir john charnley" Instituto de Ortopedia y Traumatologia Prof.Dr.Carlos E.OttolenghiHospital Italiano de Buenos AiresCapital federal C1198AAWBuenos AiresArgentina Instituto de Ortopedia y Traumatologia Prof.Dr.Carlos E.Ottolenghi Hospital Italiano de Buenos AiresCiudad Autonoma de Buenos Aires C1198AAWBuenos AiresArgentina centro de cadera"sir john charnley" Instituto de Ortopedia y Traumatología“Prof.Dr.Carlos E.Ottolenghi”Hospital Italiano de Buenos AiresCiudad Autónoma de Buenos Aires C1198AAWBuenos AiresArgentina

BACKGROUND The ExeterTM Universal cemented femoral component is widely used for total hip replacement *** there have been few reports of femoral component fracture,removal of a broken femoral stem can be a challenging *** SUMMARY A 54-year-old man with a Dorr A femur sustained a refracture of a primary ExeterTM stem,two years after receiving a revision using a cement-within-cement technique(CWC)through an extended trochanteric osteotomy(ETO).The technical problems related to the CWC technique and the ETO played a major role in the stem fatigue *** performed revision surgery and removed the distal cement using a cortical femoral window technique,followed by reimplantation with an uncemented,modular,distally-fixed uncemented *** patient experienced an uneventful postoperative *** Re-fracture of a modern femoral ExeterTM stem is a rare event,but technical complications related to revision surgery can lead to this *** cortical window osteotomy technique can facilitate the removal of a broken stem and cement,allowing for prosthetic reimplantation under direct vision and avoiding ETO-related complications.

关键词： Exeter stem Femoral stem breakage Femoral osteotomy Total hip arthroplasty Case seport

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对于严重股骨骨质溶解应用带骨水泥的charnley翻修关节成形术

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中华骨科杂志 1996年第3期16卷 189-192页

作者：李德达 The john charnley Research Institute Wrightington Hopsital for Joint Disease Hall Lane Appley Bridge Wigan WN6 9EP UK.

对于严重股骨骨质溶解应用带骨水泥的ＣＨＡＲＮＬＥＹ翻修关节成形术ＣＥＭＥＮＴＥＤＣＨＡＲＮＬＥＹＲＥＶＩＳＩＯＮＡＲＴＨＲＯＰＬＡＳＴＹＦＯＲＳＥＶＥＲＥＦＥＭＯＲＡＬＯＳＴＥＯＬＹＳＩＳＶＶＲＡＵＴ，ＰＤＳＩＮＥＹ... 详细信息

对于严重股骨骨质溶解应用带骨水泥的ＣＨＡＲＮＬＥＹ翻修关节成形术ＣＥＭＥＮＴＥＤＣＨＡＲＮＬＥＹＲＥＶＩＳＩＯＮＡＲＴＨＲＯＰＬＡＳＴＹＦＯＲＳＥＶＥＲＥＦＥＭＯＲＡＬＯＳＴＥＯＬＹＳＩＳＶＶＲＡＵＴ，ＰＤＳＩＮＥＹ，ＢＭＷＲＯＢＬＥＷＳＫＩ我们对１...

关键词：肌骨骨质溶解关节成形术带骨水泥

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On a Variant of Giuga Numbers

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Acta Mathematica Sinica,English Series 2012年第4期28卷 653-660页

作者： Jos María GRAU Florian LUCA Antonio M. OLLER-MARCN departmento de Matemáticas Universidad de Oviedo Avda. Calvo Sotelo s/n Instituto de Matemáticas Universidad Nacional Autnoma de México The john Knopfmacher Centre for Applicable Analysis and Number Theory University of the Witwatersrand centro Universitario de la defensa Academia General Militar Ctra. Huesca s/n

In this paper, we characterize the odd positive integers n satisfying the congruence ∑j=1^n-1 j n-1/2 We show that the set of such positive integers has an asymptotic densitywhich turns out to be slightly larger than... 详细信息

关键词： Congruence Giuga numbers asymptotic density

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Influence of laser polarization on collective electron dynamics in ultraintense laser-foil interactions

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High Power Laser Science and Engineering 2016年第3期4卷 120-126页

作者： Bruno Gonzalez-Izquierdo Ross J.Gray Martin King Robbie Wilson Rachel J.Dance Haydn Powell David A.Mac Lellan john McCreadie Nicholas M.H.Butler Steve Hawkes James S.Green Chris D.Murphy Luca C.Stockhausen David C.Carroll Nicola Booth Graeme G.Scott Marco Borghesi David Neely Paul McKenna SUPA department of Physics University of Strathclyde Central Laser Facility STFC Rutherford Appleton Laboratory department of Physics University of York centro de Láseres Pulsados (CLPU) Centre for Plasma Physics Queens University Belfast

The collective response of electrons in an ultrathin foil target irradiated by an ultraintense(~6×10^(20)W cm^(-2)) laser pulse is investigated experimentally and via 3D particle-in-cell simulations. It is shown that if the target is sufficiently thin that the laser induces significant radiation pressure, but not thin enough to become relativistically transparent to the laser light, the resulting relativistic electron beam is elliptical, with the major axis of the ellipse directed along the laser polarization axis. When the target thickness is decreased such that it becomes relativistically transparent early in the interaction with the laser pulse, diffraction of the transmitted laser light occurs through a so called ‘relativistic plasma aperture', inducing structure in the spatial-intensity profile of the beam of energetic electrons. It is shown that the electron beam profile can be modified by variation of the target thickness and degree of ellipticity in the laser polarization.

关键词： laser–plasmas interaction ultraintense ultrashort pulse laser interaction with matters

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Translational aspects of themodern genetics in head and neck cancers

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BIOCELL 2022年第8期46卷 1827-1835页

作者： FRANCESCO PADUANO EMANUELA ALTOMARE BENEdeTTA MARRELLI VINCENZO DATTILO HAIZAL MOHD HUSSAINI PAUL ROY COOPER MARCO TATULLO Marrelli Health-Tecnologica Research Institute Biomedical SectionStem Cells and Medical Genetics UnitsCrotone88900Italy University“Magna Graecia”of Catanzaro Catanzaro88600Italy Fondazione“Massimo Marrelli” Crotone88900Italy Genetics Unit IRCCS Centro San Giovanni di Dio FatebenefratelliBrescia20125Italy sir john Walsh Research Institute Faculty of DentistryUniversity of OtagoDunedin9054New Zealand department of Basic Medical Sciences Neurosciences and Sense OrgansUniversity of Bari Aldo MoroBari70124Italy

Oral cancer(OC)is one of the most recurrent cancers in the head and neck squamous cancer(SCCHN)***,the genome-wide association studies(GWAS)have gained growing interest in the scientific *** have identified several pathways involved in the interactions among general risk factors and genomic variants affecting *** systematic overview aims to critically evaluate the latest data reported within the scientific *** aim was to investigate the impact of genetic aspects on SCCHN onset and prognosis,involving other clinical and systemic ***,Google Scholar,and Cancer Genetics Web databases have been systematically investigated for original articles published in the last two years,reporting studies on the main queries addressed in this *** review also comparatively describes the impact of environmental and pathological co-factors in different types of cancers,clarifying and updating the role of genetic factors in SCCHN onset and *** main outcomes reported may be helpful to drive clinicians towards their clinical evaluations for the most appropriate therapeutic approach in SCCHN.

关键词： Genome-wide association studies(GWAS) Oral cancer(OC) Oral squamous cell carcinoma(OSCC) OSCC of the head and neck(SCCHN) Oral and pharyngeal cancer(OPC)

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Feasibility of the 2-point method to determine the load-velocity relationship variables during the countermovement jump exercise

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Journal of Sport and Health Science 2023年第4期12卷 544-552,F0003页

作者： Alejandro Pérez-Castilla Rodrigo Ramirez-Campillo john F.T.Fernandes Amador García-Ramos department of Physical Education and Sport Faculty of Sport SciencesUniversity of GranadaGranada 18011Spain Human Performance Laboratory Department of Physical Activity SciencesUniversidad de Los LagosSantiago 5170000Chile centro de Investigacion en Fisiologıa del Ejercicio Facultad de CienciasUniversidad MayorSantiago 8580745Chile Higher Education Sport Hartpury UniversityHartpury GL193BEUK department of Sports Sciences and Physical Conditioning Faculty of EducationUniversidad Catolica de la Santısima ConcepcionConcepcion 4090541Chile

Purpose:This study aimed to examine the reliability and validity of load-velocity(L-V)relationship variables obtained through the 2-point method using different load combinations and velocity ***:Twenty men performed 2 identical sessions consisting of 2 countermovement jumps against 4 external loads(20 kg,40 kg,60 kg,and80 kg)and a heavy squat against a load linked to a mean velocity(MV)of 0.55 m/s(load_(0.55)).The L-V relationship variables(load-axis intercept(L_(0)),velocity-axis intercept(v_(0)),and area under the L-V relationship line(A_(line)))were obtained using 3 velocity variables(MV,mean propulsive velocity(MPV),and peak velocity)by the multiple-point method including(20-40-60-80-load_(0.55))and excluding(20-40-60-80)the heavy squat,as well as from their respective 2-point methods(20-load_(0.55)and 20-80).Results:The L-V relationship variables were obtained with an acceptable reliability(coefncient of variation(CV)≤7.30%;intra-class correlation coefficient>0.63).The reliability of L_(0)and v_(0)was comparable for both methods(CV_(ratio)(calculated as higher value/lower value):1.11-1.12),but the multiple-point method provided Al_(ine)with a greater reliability(CV_(ratio)=1.26).The use of a heavy squat provided the L-V relationship variables with a comparable or higher reliability than the use of a heavy countermovement jump load(CV_(ratio):1.06-1.19).The peak velocity provided the load-velocity relationship variables with the greatest reliability(CV_(ratio):1.15-1.86)followed by the MV(CV_(ratio):1.07-1.18),and finally the *** 2-point methods only revealed an acceptable validity for the MV and MPV(effect size≤0.19;Pearson s product-moment correlation coefficient≥0.96;Lin's concordance correlation coefficient≥0.94).Conclusion:The 2-point method obtained from a heavy squat load and MV or MPV is a quick,safe,and reliable procedure to evaluate the lower-body maximal neuromuscular capacities through the L-V relationship.

关键词： Force-velocity relationship Mean velocity Multiple-point method Peak velocity Velocity-based training

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Anti-fungal and anti-bacterial activities of ethanol extracts of selected traditional Chinese medicinal herbs

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Asian Pacific Journal of Tropical Medicine 2013年第9期6卷 673-681页

作者： Lin Zhang Anjaneya S.Ravipati Sundar R Koyyalamudi Sang Chul Jeong Narsimha Reddy john Bartlett Paul T.Smith Mercedes de la Cruz Maria Cndida Monteiro ngeles Melguizo Ester Jimnez Francisca Vicente School of Science and Health University of Western SydneyLocked Bag 1797Penrith South DCNSW 1797Australia Fundación MEDINA Centro de Excelencia en Investigación de Medicamentos Innovadores en AndalucíaParque Tecnológico de Ciencias de la SaludAvda.de Conocimiento 3E-18016 ArmillaGranadaSpain

Objective:To evaluate in ritro antimicrobial activities of selected 58 ethno-medicinal plant extracts with a view to assess their therapeutic ***:A total of 58 traditional Chinese medicinal plants were carefully selected based on the literature review and their traditional *** antimicrobial activities of ethanol extracts of these medicinal plants were tested against fungi(Aspergillus funigaius),yeast(Candida albicans),gram-negative(Acirelobacter haumannii and Pseudornnruis aeruginosa)and gram-positive bacteria(Staphglococcus aureus).The activities were tested at three different concentrations of 1.00,0.10 and 0.01 mg/*** data was analysed using Gene data Screener ***:The measured antimicrobial activities indicated that out of the 58 plant extracts,15 extracts showed anti-fungal activity and 23 extracts exhibited anti-bacterial *** plant extracts have exhibited both anti-bacterial and anti-fungal *** instance,Eucommia ulmoides,Pohgonum cuspidcrtum,Poria cocas and Uncaria rhineophylla showed activity against both bacterial and fungal strains,indicating their broad spectrum of ***:The results revealed that the ethanol extracts of 30 plants out of the selected 58 possess significant antimicrobial *** is interesting to note that the findings from the current study are consistent with the traditional use.A clear correlation has also been found between the antimicrobial activity and the flavonoid content of the plant extracts which is in agreement with the *** results presented here can be used to guide the selection of potential plant species for the isolation and structure elucidation of novel antimicrobial compounds in order to establish the structure-activity *** in turn is expected to lead the way to the discovery of novel antimicrobial agents for therapeutic use.

关键词： Anti-fungal activity Anti-bacterial activity Ethanol extract Chinese medicinal herb

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Geochemistry and mineralogy of beach sediments in the northern Gulf of Mexico,Tamaulipas state,Mexico:implication for provenance

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Journal of Palaeogeography 2024年第3期13卷 375-400页

作者： Mayank Shukla Sanjeet K.Verma Mayla A.Ramos-Vázquez john S.Armstrong-Altrin Karla R.Hernández-Martínez Sumit Mishra Vivek P.Malviya Héctor Hernández-Mendoza Posgrado de la Division de Geociencias Aplicadas Instituto Potosino de Investigacion Científica y Tecnologica(IPICYT)Camino a la Presa San José2055San Luis Potosí78216Mexico Division de Geociencias Aplicadas Instituto Potosino de Investigación Científica y Tecnologica(IPICYT)Camino a la Presa San Jose 2055San Luis Potosí78216Mexico Universidad Nacional Autonoma de México Instituto de Ciencias del Mar y LimnologíaUnidad de ProcesosOceanicos y CosterosCiudad UniversitariaCiudad de México 04510Mexico department of Marine Sciences Bharathidasan UniversityTiruchirappalli620024Tamil NaduIndia Instituto de Geociencias Universidad Nacional Autonoma de MéxicoBoulevard Juriquilla 300176230JuriquillaQueretaroMexico department of Applied Geology Dr.Harisingh Gour Central UniversitySagar470002Madhya PradeshIndia Instituto de Investigacion de Zonas desérticas Universidad Autònoma de San Luis PotosíAltair 200CP 78377San LuisS.L.P.Mexico Universidad del centro de Mexico Capitán Caldera 75CP 78250San LuisS.L.P.Mexico

Geochemical and mineralogical studies were performed in the La Pesca(LP)and Tesoro Altamira(TA)beach sediments,located in the Tamaulipas state,northern Gulf of *** main aim of this study is to infer the weathering history and provenance and to discriminate the tectonic environment of the beach *** sediments are composed of quartz with small amounts of accessory minerals such as plagioclase,calcite,orthoclase,microcline,and *** beach sediments are classified as fine-grained and very well sorted,however LP has coarse skewed and leptokurtic sediments,whereas TA has fine-skewed and very leptokurtic *** chemical index of weathering(CIW’)indicates intense weathering in the source *** quartz grain microtextures in the LP and TA are classified into mechanical,chemical,and mechanical/chemical *** features such as fractures,pits,percussion marks,abrasion fatigue,and V-shaped marks favor high-energy littoral,fluvial,subaqueous-marine,and aeolian *** chemical features indicate solution pits and crystalline overgrowth,which suggests a silica saturated marine *** mechanical/chemical features display adhering particles and elongated depressions suggest formation in a sub-aqueous nearshore marine *** and trace elements-based provenance discrimination diagrams indicate a felsic source derived from the Mesa Central(MC),Sierra Madre Oriental(SMOr)and Oaxaquia *** major and trace element concentrations imply a passive margin setting for the northern Gulf of Mexico,which is consistent with the general geology.

关键词： Beach sediments Geochemistry Mineralogy Provenance Tamaulipas Tectonic setting

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人工关节之父——S·J查尔利

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中国矫形外科杂志 2013年第15期21卷 1512-1512页

作者：宁桦

S·J查尔利（sir john charnley）是英国著名关节外科医生，他在1962年提出的低摩擦人工髋关节置换理论、人工关节置换术，特别是人工髋关节置换进入到了崭新的纪元。charnley医生设计的头直径为22．5mm的不锈钢股骨假体，经过多次实践... 详细信息

S·J查尔利（sir john charnley）是英国著名关节外科医生，他在1962年提出的低摩擦人工髋关节置换理论、人工关节置换术，特别是人工髋关节置换进入到了崭新的纪元。charnley医生设计的头直径为22．5mm的不锈钢股骨假体，经过多次实践最终采用耐磨的高分子聚乙烯制成髋臼，并使用聚甲基丙烯酸甲酯（即骨水泥）固定假体。

关键词：人工关节置换术人工髋关节置换聚甲基丙烯酸甲酯高分子聚乙烯外科医生股骨假体不锈钢骨水泥

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Trichomonas vaginalis perturbs the junctional complex in epithelial cells

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Cell Research 2005年第9期 29-41页

作者： Rodrigo Furtado MAdeIRO da COSTA,Wanderley de SOUZA,Marlene BENCHIMOL,john F ALdeRETE,José Andrés MORGADO-DíAZ Programa de Pós Graduao em Ciências Morfológicas Universidade Federal do Rio de Janeiro Rio de Janeiro RJ 20231- 050 Brazil Grupo de Biologia Estrutural Diviso de Biologia Celular centro de Pesquisa Instituto Nacional de Cancer Rio de Janeiro RJ 20231-050 Brazil Grupo de Biologia Estrutural Diviso de Biologia Celular centro de Pesquisa Instituto Nacional de Cancer Rio de Janeiro RJ 20231-050 Brazil Laboratório de Ultraestrutura Celular Hertha Meyer Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de Janeiro centro de Ciências da Saúde Rio de Janeiro RJ 21944-900 Brazil Laboratório de Ultraestrutura Celular Universidade Santa úrsula Rio de Janeiro RJ 22231-010 Brazil department of Microbiology University of Texas Health Science Center San Antonio TX 78229-3900 USA Grupo de Biologia Estrutural Diviso de Biologia Celular centro de Pesquisa Instituto Nacional de Cancer Rio de Janeiro RJ 20231-050 Brazil

Trichomonas vaginalis, a protist parasite of the urogenital tract in humans, is the causative agent of trichomonosis, which in recent years have been associated with the cervical cancer development. In the present study we analyzed the modifications at the junctional complex level of Caco-2 cells after interaction with two isolates of T. vaginalis and the influence of the iron concentration present in the parasite’s culture medium on the interaction effects. Our results show that T. vaginalis adheres to the epithelial cell causing alterations in the junctional complex, such as: (a) a decrease in transepithelial electrical resistance; (b) alteration in the pattern of junctional complex proteins distribution as observed for E-cadherin, occludin and ZO-1; and (c) enlargement of the spaces between epithelial cells. These effects were dependent on (a) the degree of the parasite virulence isolate, (b) the iron concentration in the culture medium, and (c) the expression of adhesin proteins on the parasite surface.

关键词： Trichomonas vaginalis Caco-2 junctional complex proteins transepithelial electrical resistance adhesins.

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