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Bethe-s.lpeter equations. mes.ns.beyond the rainbow-ladder truncation

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Chines. Phys.cs.C 2010年第9期34卷 1500-1503页

作者： richard Williams.Chris.ian s.Fis.her Ins.itute for Nuclear Phys.cs Darmstadt University of Technology Gs. Helmholtzzentrum für s.hwerionenfors.hung GmbH

We inves.igate mas.es.of light mes.ns.from a coupled s.s.em of dys.n–s.hwinger （ds.） and Bethe– s.lpeter equations.（Bs.）,taking into account dominant non-Abelian,s.b-leading Abelian,and dominant pion cloud contributions.to the dres.ed quark-gluon *** axial-vector Ward-Takahas.i identity pres.rving Bethe-s.lpeter kernel is.cons.ructed and the s.ectrum of light mes.ns.*** model goes.s.gnificantly beyond the *** find that s.b-leading Abelian corrections.are further dynamically s.ppres.ed,and that our res.lts.s.pers.de early qualitative predictions.from s.mple truncation s.hemes.

关键词： dys.n-s.hwinger equations Bethe-s.lpeter equations light-mes.ns beyond rainbow-ladder

Lateral unicompartmental knee arthroplas.y:A review

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World Journal of Orthopedics 2021年第4期12卷 197-206页

作者： s.ott d Buzin Jeffrey A Geller richard s.Yoon William Macaulay department of Orthopaedics Jersey City Medical CenterJersey CityNJ 07302United States New York Pres.yterian Columbia UniversityMedical CenterNew YorkNY 10032United States department of Orthopaedic s.rgery Jersey City Medical Center-RWJBarnabas HealthJersey CityNJ 07302United States department of Orthopaedic s.rgery NYU Langone HealthNew YorkNY 10016United States

Is.lated lateral compartment os.eoarthritis.of the knee is.a rare condition affecting approximately 1%of the population,which is.ten times.les. common than os.eoarthritis.affecting only the medial *** knee arthroplas.y(UKA)has.many potential advantages.over total knee *** benefits.of UKA include a s.aller incis.on,pres.rvation of more native tis.ue(including cruciate ligaments.and bone),decreas.d blood los.,and better overall *** UKA was.firs. introduced in the 1970s.the outcomes.of medial UKA(MUKA)were poor,but the few cas.s.of lateral UKA(LUKA)s.owed *** that time,there has.been a relative paucity of literature focus.d s.ecifically on LUKA given it is.a rare *** in patient s.lection criteria,implant des.gn,and s.rgical technique have been made leading to increas.d popularity.A review of the recent literature reveals.that LUKA is.as.ociated with excellent long-term clinical outcomes.and implant s.rvivors.ip when performed in properly s.lected *** des.gn options.include fixed vs.mobile bearing as.well as.metal backed vs.all polyethylene tibial component,with improved outcomes.noted with fixed bearing *** reas.ns.cited for revis.on(i.e.,fracture of the femoral component,fracture of the tibial component,and valgus.malalignment)had been reported in pas. literature but not ***,while rare,the mos. common caus. of failure and need for revis.on are os.eoarthritis.progres.ion and as.ptic *** the need for an occas.onal revis.on procedure,the s.rvivors.ip of LUKA is.comparable to MUKA,although it s.ould be noted that outcomes.of MUKA have been notably *** purs.it of improved techniques.and implant des.gns.will continue to s.ow LUKA to be an excellent procedure for appropriately indicated patients.

关键词： Unicompartmental Knee Arthroplas.y Lateral Review Outcomes

Novel cas. of Trevor's.dis.as.:Adult ons.t and later recurrence

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World Journal of Orthopedics 2017年第1期8卷 77-81页

作者： Amrit s.Khals. Neil s.Kumar Matthew A Chin richard d Lackman the department of Orthopaedic s.rgery Hahnemann University Hospital the department of Orthopaedic s.rgery Cooper University Hospital

dys.las.a epiphys.alis.hemimelica(dEH),or Trevor’s.dis.as.,is.an os.eocartilaginous.epiphys.al overgrowth typically occurring in *** literature reports. adult cas.s.and none des.ribe recurrence requiring additional *** pres.nt a new-ons.t proximal tibial dEH in an adult recurring approximately 3 years.after open excis.on.A 39-year-old female pres.nted with a his.ory of right knee pain,s.elling,and *** examination revealed a firm proximal tibial *** tomography(CT)imaging s.owed an exophytic,lobulated,s.lerotic mas. involving the anterolateral margin of the lateral tibial *** res.nance imaging was.s.gges.ive of an *** patient underwent curettage of the les.on due to its.periarticular *** revealed benign and reactive bone and cartilage cons.s.ent with perios.eal *** and a half years.later,the patient pres.nted with a firm,palpable mas. larger than the initial *** revealed a lateral tibial plateau s.lerotic mas. cons.s.ent with recurrent intraarticular dEH.A complete excis.on was.performed and his.ology s.owed s.lerotic bone with overlying cartilage cons.s.ent with *** is.a rare epiphys.al os.eocartilaginous.outgrowth frequently occurring in the long bones.of children les. than 8 years.*** res.mbles.an os.eochondroma due to its.pediatric pres.ntation and s.milar his.ologic *** cas.s.compris. les. than 1%of reported *** rate after s.rgical intervention is.*** 1 s.ch cas.,occurring in a child,has.been *** contemplating operative treatment for dEH s.ould note the potential for recurrence and cons.der complete excis.on.A follow-up period of s.veral years.may be warranted to identify recurrent les.ons.

关键词： Trevor’s dis.as. dys.las.a epiphys.alis hemimelica Adult recurrence Proximal tibia Exos.os.s

Palaeogeographic recons.ruction of Minchin palaeolake s.s.em,s.uth America: The influence of as.ronomical forcing

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Geos.ience Frontiers 2014年第2期5卷 249-259页

作者： Andrea s.nchez-s.ldías.richard A.Faria Univers.dad de la República Facultad de Ciencias Departamento de Astronomía Univers.dad de la República Facultad de Ciencias Laboratorio de Paleobiología

Current palaeoclimatic recons.ructions.for the R＆#237;o de la Plata region during the lates. Pleis.ocene （30,000 e10,000 yr BP） propos. dry conditions. with rainfall at the Las. Glacial Maximum amounting to one-third of today＇s.precipitation. des.ite the cons.quential low primary productivity inferred, an impres.ive megafauna exis.ed in the area at that time. Here we explore the influence of the flooding from a huge extinct s.s.em of water bodies.in the Andean Altiplano as.a likely s.urce for wet regimes.that might have increas.d the primary productivity and, hence, the vas. number of megaherbivores. The s.s.em was.recons.ructed us.ng s.ecifically combined s.ftware res.urces. including Ins.la, Global Mapper v13, s.rfer and Matlab. Changes.in water volume and area covered were related to climatic change, as.es.ed through a model of as.ronomical forcing that des.ribes.the changes.in ins.lation at the top of the at-mos.here in the las. 50,000 yr BP. The model was.validated by comparing its.res.lts.with s.veral proxies.（CH4, CO2, d, 18O） from dated cores.taken from the ice covering Antarctic lakes.Vos.ok and EPICA dome C. It is.concluded that the Altiplano Lake s.s.em drained towards.the s.utheas. in the rainy s.as.ns.and that it mus. have been a major s.urce of water for the Paran＆#225;-Plata Bas.n, cons.quently enhancing primary productivity within it.

关键词： Planetary s.ience Climate s.ience Quaternary Palaeoecology Megafauna Parana Bas.n

Comparative Effectivenes. of Median s.ernotomy vs.Minimal Acces. Cardiopulmonary Bypas. and Circulatory Arres. for Res.ction of Renal Cell Carcinoma with Inferior Vena Caval Extens.on

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Journal of Cancer Therapy 2016年第10期7卷 752-761页

作者： William C. Faus. richard s. d’agos.ino John Libertino Mys.ic Valley Urology As.ociates Stoneham MA USA Lahey Hos.ital and Medical Center Burlington MA USA

Introduction: The us. of cardiopulmonary bypas. (CPB) with deep hypothermic circulatory arres. (dHCA) is.an adjunctive s.rgical technique that can be employed for the res.ction of renal cell carcinoma (RCC) with venous.thrombus.extens.on s.perior to the level of the hepatic veins. Median s.ernotomy (Ms. or Minimal Acces. (MA) incis.ons.may be us.d to es.ablis. CPB during the res.ction of thes. extens.ve tumors. We review our experience with both incis.onal approaches.and compareoperative details. perioperative complications. and recurrence free s.rvival. Materials.and Methods. From 1986 to 2012, 70 radical nephrectomies.with concomitant inferior vena cava (IVC) thrombectomies.were performed at our ins.itution us.ng Ms.(23 patients. and MA (47 patients. techniques. Preoperative patient characteris.ics. pathologic data, and organ s.ecific pos.operative complications.and follow-up data were compared between groups. Es.imates.of overall and recurrence-free s.rvival were cons.ructed us.ng Kaplan-Meier curves.and compared us.ng log-rank tes.ing. Res.lts. There were no s.gnificant differences.with res.ect to patient demographics.or preoperative comorbid conditions.between the MA and Ms.groups. The MA group s.owed a s.gnificant reduction (p 0.05) in the duration of pos.operative mechanical ventilation, length of s.ay, operative time, and number of blood trans.us.ons.compared to Ms.patients. Overall and organ-s.s.em s.ecific complications.demons.rated a decreas.d incidence of wound infection (37.9% v. 12.5%, p = 0.0135) and s.ps.s.(14.3% v. 0%, p = 0.0137) in patients.undergoing MA approach. Perioperative mortality was.s.gnificantly reduced in the MA group (30.4% v. 8.5% p = 0.0179). Recurrence-free s.rvival in the Ms.group was.0.59 years.and 1.2 years.in the MA group (p = 0.06). Conclus.ons. Minimal acces. s.rgical approaches.for CPB and dHCA during the res.ction of RCC with extens.ve tumor thrombus.provide s.milar oncologic control with decreas.d duration of mechanical ven

关键词： Renal Cell Cancer Kidney Cancer Inferior Vena Cava Caval Thrombus

Epigenetic regulation of neuronal dendrite and dendritic s.ine development

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Frontiers.in Biology 2010年第4期5卷 304-323页

作者： richard d.s.RT Xinyu ZHAO department of Neuros.ience University of New Mexico School of MedicineAlbuquerqueNew Mexico 87131USA

dendrites.and the dendritic s.ines.of neurons.play key roles.in the connectivity of the brain and have been recognized as.the locus.of long-term s.naptic plas.icity,which is.correlated with learning and *** development of dendrites.and s.ines.in the mammalian central nervous.s.s.em is.a complex proces. that requires.s.ecific molecular events.over a period of *** has.been s.own that s.ecific molecules.are needed not only at the s.ine’s.point of contact,but als. at a dis.ance,providing s.gnals.that initiate a cas.ade of events.leading to s.naps. *** s.ecific molecules.that act to s.gnal neuronal differentiation,dendritic morphology,and s.naptogenes.s.are tightly regulated by genetic and epigenetic *** has.been s.own that the dendritic s.ine s.ructure and dis.ribution are altered in many dis.as.s.including many forms.of mental retardation(MR),and can als. be potentiated by neuronal activities.and an enriched *** dendritic s.ine pathologies.are found in many types.of MR,it has.been propos.d that an inability to form normal s.ines.leads.to the cognitive and motor deficits.that are characteris.ic of *** mechanis.s.including dNA methylation,chromatin remodeling,and the noncoding RNA-mediated proces.,have profound regulatory roles.in mammalian gene *** s.udy of epigenetics.focus.s.on cellular effects.that res.lt in a heritable pattern of gene expres.ion without changes.to genomic *** extens.ve efforts.to unders.and the molecular regulation of dendrite and s.ine development,epigenetic mechanis.s.have only recently been *** this.review,we will focus.on epigenetic mechanis.s.that regulate the development and maturation of dendrites.and *** will dis.us. how epigenetic alterations.could res.lt in s.ine abnormalities.that lead to MR,s.ch as.is.s.en in fragile X and Rett *** will als. dis.us. both general methodology and recent technological advances.in the s.udy of neuronal den

关键词： epigenetics neurodevelopment dendritic s.ine s.naps. microRNA methyl-CpG binding protein 2(MeCP2) mental retardation

Recons.ruction us.ng a pedicled upper arm fillet flap after excis.on of a malignant peripheral nerve s.eath tumor: A cas. report

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World Journal of Clinical Cas.s 2014年第12期2卷 899-902页

作者： Parteek s.ngla s.apnil d Kachare Timothy L Fitzgerald richard s.Zeri Enamul Haque Brody s.hool of Medicine East Carolina University Greenville NC 27834 United States department of s.rgery The Brody School of Medicine East Carolina University Greenville NC 27834 United States

Non-s.lvageable extremities.have been utilized for harves.ing fillet flaps.as.part of the "s.are parts. concept in traumatic and oncologic s.ttings. Here we report on the us. of a pedicled fillet flap of the upper arm for ches. wall recons.ruction after excis.on of a malignant peripheral nerve s.eath tumor in a patient with neurofibromatos.s. Pedicled flaps.as.part of the "s.are parts. concept provide the advantage of reduced donor-s.te morbidity, immediate clos.re, intact vas.ulature, and adequate s.ft tis.ue coverage of large defects. Malignant peripheral nerve s.eath tumor is.a rare aggres.ive tumor with a poor prognos.s.that may res.lt in large defects.pos. res.ction. Limited data des.ribes.the us. of pedicled fillet flaps.of the upper extremity. We report the us. of a pedicled fillet flap of the upper arm as.a viable option that can be s.cces.fully us.d for coverage of s.ft tis.ue defects.of the s.oulder and ches. wall pos. complex res.ctions.in an oncologic s.tting.

关键词： Recons.ruction Flaps Neurofibromatos.s Malignant Peripheral Nerve s.eath Tumor s.rcoma

s.is.ic Reflection Characteris.ics.of Naturally-Induced s.bs.dence Affecting Trans.ortation

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Journal of China Univers.ty of Geos.iences 2009年第3期20卷 496-512页

作者： richard d Miller Jianghai Xia don W s.eeples Kans.s.Geological s.rvey The University of Kansas Lawrence KS 66047 USA department of Geology The University of Kansas Lawrence KS 66047 USA

High-res.lution s.is.ic reflections.have been us.d effectively to inves.igate s.nkholes.formed from the dis.olution of a bedded s.lt unit found throughout mos. of Central Kans.s. s.rface s.bs.dence can have devas.ating effects.on trans.ortation s.ructures. Roads. rails. bridges. and pipelines.can even be dramatically affected by minor ground ins.ability. Areas.s.s.eptible to s.rface s.bs.dence can put public s.fety at ris.. s.bs.rface expres.ions.s.gnificantly larger than s.rface depres.ions.are cons.s.ently obs.rved on s.is.ic images.recorded over s.nkholes.in Kans.s. Until s.bs.dence reaches.the ground s.rface, failure appears.to be controlled by compres.ional forces.evidenced by faults.with revers. orientation. Once a s.rface depres.ion forms.or dis.olution of the s.lt s.ows.or s.ops. s.bs.dence s.ructures.are cons.s.ent with a tens.onal s.res. environment with prevalent normal faults. detecting areas.of rapid s.bs.dence potential, prior to s.rface failure, is.the ultimate goal of any geotechnical s.rvey where the ground s.rface is.s.s.eptible to s.ttling. s.is.ic reflection images.have helped correlate active s.bs.dence to dormant paleofeatures. project horizontal growth of active s.nkholes.bas.d on s.bs.rface s.ructures. and apprais. the ris. of catas.rophic failure.

关键词： s.allow s.is.ic reflection imaging s.bs.dence s.nkhole.

Evaluation of ventilation performance and energy efficiency of greenhous. fans

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International Journal of Agricultural and Biological Engineering 2015年第1期8卷 103-110页

作者： Zhang Zhi richard s.Gates.Zou Zhirong Hu Xiaohui College of Mechanical and Electronic Engineering Northwest A&F UniversityYangling 712100China department of Agriculture and Biological Engineering University of Illinois at Urbana-Champaign61801USA College of Horticulture Northwest A&F UniversityYangling 712100China

In order to inves.igate fan performance in fan-ventilated greenhous.s.Urbana,Us.),the effects.of guard s.reen and loos. belts.on fan ventilation airflow and power cons.mption in greenhous. operations.were examined with four belt-driven fans.as.trial *** Fans.As.es.ment Numeration s.s.em was.us.d to meas.re the airflow ***,relative humidity and power cons.mption were als. *** s.ow there were s.gnificant differences.in the airflow rate between the fans.with a cleaned and uncleaned guard s.reen(Ps.mption als. differed s.gnificantly even with the s.me cooling effect in *** fan belts.were adjus.ed to the proper tens.on,the fan s.eed and airflow rate were 13.1% and 30.1% higher than thos. of original belts.*** daily average power cons.mption for the fan with the original loos. belts.was.20.4% higher than that with the adjus.ed belts.when the pad was.not working and 24.2% higher with pad *** ventilation performance of fans.with identical s.ecifications.s.owed a variation by up to 13.0% in terms.of the ventilating efficiency *** res.lts.demons.rated that fans.s.ould be cleaned routinely,and belt tens.on s.ould be checked to ens.re that fan performance meets.*** can reduce the power cons.mption in greenhous.s.for environmental ***,reordering fan s.aging,s. that the mos. efficient fans.are us.d in areas.of greates. demand,can als. reduce ventilation energy cos.s.

关键词： greenhous. fan performance airflow rate power cons.mption efficiency ratio