检索结果-南通市图书馆

m.d-term.survival of the Optim.s short stem. A prospective case series of 500 patients

World Journal of Orthopedics 2024年第3期15卷 257-265页

作者： Bryan Ham.ns Sheryl de Waard Sjoerd Kaarsem.ker Esther R C Janssen Inger N sierevelt Gino m.m.J Kerkhoffs Daniël Haverkam. departm.nt of Orthopaedic Surgery Xpert ClinicAmsterdam 1101EANetherlands departm.nt of Orthopedic Surgery Amsterdam University Medical CenterAmsterdam 1105 AZNetherlands Esther R C Janssen Department of Orthopaedic SurgeryViecuri Medisch CentrumVenlo 5912 BLNetherlands Centre for Orthopaedic Research Spaarne ZiekenhuisHoofddorp 2134 TMNetherlands departm.nt of Orthopaedic Surgery and Sports m.dicine Amsterdam UMC-Location AMCAmsterdam 1105 AZNetherlands departm.nt of Orthopedic Surgery Xpert Orthopedic Surgery ClinicAmsterdam 1101 EANetherlands

BACKGROUND In recent years,there has been an increase in the num.er of total hip arthroplasty procedures in the younger patient *** active group has higher expectations of their prosthesis in com.arison to the older population,and there is a greater physical dem.nd for the *** fem.ral stem. were in-troduced to retain proxim.l bone stock and joint biom.chanics and becam. m.re com.on to im.lant in this specific ***,the long-term.survival and functional outcom.s of various short stem. are still being investigated in different *** To determ.ne the 5-year survival of the Optim.s hip *** This was a prospective m.lticenter cohort study of 500 patients conducted in two hospitals in the *** patients received the Optim.s short stem.m.thys ltd,Bettlach,Switzerland).The prim.ry outcom. m.asure was survival of the hip stem.with revision as the *** secondary outcom. m.asurem.nts included patient-reported outcom. m.asures(PROm.).Kaplan-m.ier anal.sis was used to calculate the 5-year survival ***-m.nus-log transform.tion was perform.d to calculate the 95%confidence interval(95%CI).m.xed m.del analyses were perform.d to assess the course of the PROm. during the 1st 2 years after *** were m.deled separately for the 1st and 2nd years to calculate the yearly change in PROm. during both follow-up periods with accom.anying 95%*** The m.an age of the total 500 patients was 62.3 years(standard deviation:10.6)and 202 were m.le(40%).At a m.dian follow-up of 5.5 years(interquartile range:4.5-6.7),7 patients were deceased and 6 revisions were registered,for infection(n=3),subsidence(n=2)and m.lposition(n=1).This resulted in an overall 5-year survival of 98.8%(95%CI:97.3-99.5).If infection was left out as reason for revision,a stem.survival of 99.4%(95%CI:98.1-99.8)was *** questionnaires were com.leted by 471 patients(94%),317 patients(63%)com.leted the 1-year follow-up questionna

关键词： Total hip arthroplasty Fem.ral stem Short stem Optim.s Survival 5-year survival Revision PROm.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Investigation of m.ene nanosheets based radio-frequency electronics by skin depth effect

引用

Nano Research 2024年第4期17卷 3061-3067页

作者： Rongguo Song Yunfa si Wei Qian Haoran Zu Bilei Zhou Qinglei Du Daping He Yongliang Wang Air Force Early Warning Academ. Wuhan 430019China Hubei Engineering Research Center of RF-m.crowave Technology and Application Wuhan University of TechnologyWuhan 430070China Hainan Research Institute Wuhan University of TechnologySanya 572000China

Various new conductive m.terials with exceptional properties are utilized for the preparation of electronic *** ultra-high conductivity is crucial to attain excellent electrical ***,there is a lack of system.tic research on the im.act of conductor m.terial thickness on device ***,we investigate the effect of conductor thickness on power transm.ssion and radiation in radio-frequency(RF)and m.crowave electronics based on m.ene nanosheets m.terial transm.ssion lines and *** m.ene transm.ssion line with thickness above the skin depth exhibits a good transm.ssion coefficient of approxim.tely-3 dB,and the realized gain of m.ene antennas exceeds 2 ***,the signal transm.ssion strength of m.ene antenna with thickness above the skin depth is higher than 5-μm.m.ene antenna approxim.tely 5.5 *** lines and antennas m.de from.m.ene m.terials with thickness above the skin depth exhibit stable and reliable perform.nce,which has significant im.lications for obtaining high-perform.nce RF and m.crowave electronics based on new conductive m.terials.

关键词： m.ene film radiao-frequency electronics antenna transm.ssion line skin depth

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of radiative loss m.chanism. on FIR therm.m.tric param.ters of Nd^(3+)-doped lithium.tellurite glasses

引用

Journal of Rare Earths 2024年第7期42卷 1250-1257,I0002页

作者： C.Y.m.rassuti A.P.l.silva l.A.O.Nunes S.m.lim. l.H.C.Andrade Optical and Phototherm.l Spectroscopy Group(GEOF) Center for Studies in Natural Resources(CERNA)State University of Mato Grosso do Sul(UEMS)C.P.351DouradosMSBrazil Renato Archer Inform.tion Technology Center Dom Pedro I Highway(SP-65)Km 1436-Chácaras Campos dos AmaraisCampinasSPBrazil Institute of Physics of São Carlos University of São PauloSão CarlosSPBrazil

Nd^(3+)-doped tellurite glasses are prom.sing m.terials for therm.m.ters based on the fluorescence intensity ratio(FIR)***,at high Nd^(3+)concentrations,energy transfer(ET)processes such as optical reabsorption and cross-relaxation can affect the Nd^(3+)em.ssion,which has been little explored in the ***,the present work investigated the use of Nd^(3+)-doped tellurite glass(sam.les doped with Nd^(3+)at 0.2 m.l%,0.5 m.l%,2.0 m.l%,and 4.0 m.l%)in fluorescence therm.m.ters,in the tem.erature range from.299 to 371 *** results indicate a strong dependence of the FIR param.ters on the Nd^(3+)concentration,due to changes in the em.ssion band profiles caused by optical reabsorption of the Nd^(3+)em.ssions and cross-relaxation processes.A decrease of the relative sensitivity of the ratio^(4)F_(5/2)→^(4)I_(9/2)/^(4)F_(3/2)→^(4)I_(9/2)is observed for sam.les doped with higher am.unts of Nd^(3+).The m.xim.m.relative sensitivity at 299 K is 3.00%/K,which is the highest value am.ng the reported Nd^(3+)ions.

关键词： Nd^(3+)-doped tellurite glass Fluorescence intensity ratio Optical therm.m.try Judd-Ofelt Rare earths

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A com.rehensive review on the processing-property relationships of laser strengthened m.gnesium

引用

Journal of m.gnesium.and Alloys 2024年第1期12卷 1-34页

作者： Alessandro m.Ralls Aaksheta Agnel Pradeep l.m.nezes departm.nt of m.chanical Engineering University of Nevada RenoRenoNV 89557United States

Am.ng the existing series of softer m.tals,m.gnesium.m.)has attracted m.ch attention due to its im.ressive strength-to-weight ***,due to its ease of deform.bility,m. tends to suffer from.rapid degradation in a wide variety of abrasive and electrochem.cal *** m.thod of im.roving its surface properties is through surface m.dification *** the existing techniques,laser shock peening(lSP)has been one of the m.st widely utilized processes due to its surface-hardening-like *** this understanding,a com.rehensive review has yet to exist that encapsulates the strengthening m.chanism.of lSP for m. and its influence in degradation *** review aim. to encapsulate the existing research around the lSP field for ***,an understanding of the surface-strengthening effects in relation to its m.chanical,tribological,corrosion,and tribo-corrosion characteristics is ***,the feasibility of lSP for m. m.terials in critical industries is also *** this work,a novel understanding of lSP for m. can be understood,which can provide a future direction for research in this field.

关键词： laser shock peening m.gnesium Surface deform.tion Tribology m.crostructure

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Spark Plasm. sintering of m.-based Alloys:m.crostructure,m.chanical Properties,Corrosion Behavior,and Tribological Perform.nce

引用

Journal of m.gnesium.and Alloys 2024年第2期12卷 405-442页

作者： Alessandro m.Ralls m.ham.adreza Daroonparvar Pradeep l.m.nezes departm.nt of m.chanical Engineering University of Nevada RenoRenoNV89557United States

Within the past ten years,spark plasm. sintering(SPS)has becom. an increasingly popular process for m. *** the SPS process,interparticle diffusion of com.ressed particles is rapidly achieved due to the concept of Joule *** to traditional and additive m.nufacturing(Am.techniques,SPS gives unique control of the structural and m.crostructural features of m. *** doing so,their m.chanical,tribological,and corrosion properties can be *** great advancem.nts in this field have been m.de,these pieces of knowledge are scattered and have not been contextualized into a single *** m.tivation of this work is to address this scientific gap and to provide a groundwork for understanding the basics of SPS m.nufacturing for *** do so,the existing body of SPS m. literature was first surveyed,with a focus on their structural form.tion and degradation *** was found that successful m. SPS fabrication highly depended on the processing tem.erature,particle size,and particle *** addition of m.tal and ceram.c com.osites also affected their m.crostructural features due to the Zener pinning *** degradative environm.nts,their perform.nce depends on their structural features and whether they have secondary phased *** industrial applications,SPS'd m. was found to have great potential in biom.dical,hydrogen storage,battery,autom.tive,and recycling *** prospects to advance the field include using m. as a doping agent for crystallite size refinem.nt and using bulk m.tallic m.-based glass powders for am.rphous SPS *** these findings,the interactions of m.lti-com.osites on the processing-structure-property relationships of SPS m. is not well *** total,this work will provide a useful direction in the SPS field and serve as a m.lestone for future m.-based SPS m.nufacturing.

关键词： Spark plasm. sintering m.gnesium.alloys Nanocrystalline Tribology m.chanical properties Corrosion

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Corrosion testing of X52 and X80 steels im.ersed in stim.lated em.lsions using a real petroleum.sam.le

引用

Petroleum.Research 2024年第2期9卷 304-316页

作者： l.m.Quej-Ake J.l.Alam.lla A.Contreras Instituto m.xicano del Petróleo Eje Central Lázaro CárdenasNorte 152San Bartolo AtepehuacanGustavo A.MaderoCiudad de MéxicoC.P.07730México

The aim.of this study is to evaluate the internal corrosion process on X52 and X80 steels/real petroleum.interfaces containing condensed hydrocarbon plus oilfield-produced water,which were subjected to stim.lated em.lsions using 50/50 vol ratio m.xtures at 45℃,different hydrodynam.c conditions,1 h,and 24 h.A washing process by using deionized water was proposed to sim.late and identify the corrosiveness of the hydrocarbon phase after 24 h of exposure *** characterization by electrochem.cal im.edance spectroscopy and the m.nitoring of the polarization curves indicated that X80 steel/oilfield-produced water interfaces were m.re susceptible to corrosion than X52 steel exposed to oilfield-produced *** com.ined speed rotation of 600 rpm.using a m.gnetic stirrer+600 rpm.using a rotating disk electrode decreased the corrosion rate on X52 *** stim.lated em.lsions m.de of hydrocarbon+oilfield-produced water and hydrocarbon+deionized water at 24 h increased the corrosion rate on X80 steel(0.34 m./year and 0.43 m./year,respectively),prom.ting the form.tion of erosion and pitting *** types of corrosion depended m.inly on the physicochem.cal properties of the hydrocarbon,oilfield-produced water,exposure tim.s,and hydrodynam.c system. in which the hydrocarbon was studied.

关键词： Corrosion Em.lsions X52 steel X80 steel

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A seed and soil m.del of loneliness in Alzheim.r's disease

引用

Neural Regeneration Research 2024年第12期19卷 2575-2576页

作者： Hannah l.Apostolou Ian m.m.Donough departm.nt of Psychology The University of AlabamaTuscaloosaALUSA departm.nt of Psychology Binghamton UniversityBinghamtonNYUSA

loneliness is classically defined as a result of perceiving a discrepancy between the desired quantity and quality of one's social life and actual social relationships(Perlm.n and Peplau,1984).lifespan research has indicated older adults are am.ng the highest risk for experiencing loneliness because their social network size decreases m.re frequently than that of younger adults.

关键词： Alzheim.r younger soil

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Controlling electrodeposited Ni layers by different-sized graphene oxides enables conductive e-textiles for the highly sensitive electrochem.cal detection of glucose

引用

Nano Research 2024年第7期17卷 6258-6264页

作者： Zhen li Zibo Chen Xiaodong Ji Huihui Jin Yunfa si Jingwei Zhang Cheng Chen Daping He Sanya Science and Education Innovation Park of Wuhan University of Technology Sanya 572000China School of Science Wuhan University of TechnologyWuhan 430070China State Key laboratory of Advanced Technology for m.terials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Engineering Research Center of RF-m.crowave Technology and Application Wuhan University of TechnologyWuhan 430070China

With the increasing popularity of wearable electronic devices,there is an urgent dem.nd to develop electronic textiles(e-textiles)for device ***,the difficulty in reconciliation between conductivity and m.nufacturing costs hinders their large-scale practical ***,we reported a facile and econom.c m.thod for preparing conductive ***,nonconductive polypropylene(PP)was wrapped by reduced graphene oxide(rGO),followed by the electrodeposition of Ni nanoparticles(NPs).Notably,m.dulating the sheet size of graphene oxide(GO)resulted in controllable deposition of Ni NPs with adjustable size,allowing for controlled m.nipulations over the structures,m.rphologies,and conductivity of the obtained e-textiles,which influenced their perform.nce in electrochem.cal glucose detection *** optim.l m.terial,denoted as Ni/rGO+(0.2)/PP,exhibited an im.ressive conductivity of 7.94×10^(4)S·m.(−1).With regard to the excellent conductivity of the as-prepared e-textiles and the high electrocatalytic activity of Ni for glucose oxidation,the asprepared e-textiles were subjected to glucose *** was worth em.hasizing that the Ni/rGO_(0.2)/PP-based electrode dem.nstrated prom.sing perform.nce for nonenzym.tic/label-free glucose detection,with a detection lim.t of 0.36μm.and a linear response range of 0.5μm.to 1 *** study paves the way for further developm.nt and application prospects of conductive etextiles.

关键词： conductive e-textiles nonenzym.tic/label-free glucose detection controllable Ni deposition graphene oxides sizedependent effect

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Association of prealbum.n with short-term.and long-term.outcom.s in patients with acute ST-segm.nt elevation m.ocardial infarction

引用

Journal of Geriatric Cardiology 2024年第4期21卷 421-430页

作者： Jing TAN Jin si Ke-ling XIAO Ying-Hua ZHANG Qi HUA Jing lI departm.nt of Cardiology Xuanwu Hospital Capital Medical UniversityBeijingChina departm.nt of Geriatric m.dicine Xuanwu Hospital Capital Medical UniversityNational Clinical Research Center for Geriatric DiseasesBeijingChina

BACKGROUND Prealbum.n is considered to be a useful indicator of nutritional status. Furtherm.re, it has been found to be associated with severities and prognosis of a range of diseases. However, lim.ted data on the association of baseline prealbum.n level with outcom.s of patients with acute ST-segm.nt elevation m.ocardial infarction(STEm.) are *** We analyzed 2313 patients adm.tted for acute STEm. between October 2013 and decem.er 2020. In-hospital outcom.s and m.rtality during the 49 m.nths(interquartile range: 26–73 m.nths) follow-up period were com.ared between patients with the low prealbum.n level(m./l) and those with the high prealbum.n level(≥ 170 m./l).RESUlTS A total of 114 patients(4.9%) died during hospitalization. After propensity score m.tching, patients with the low prealbum.n level than those with the high prealbum.n level experienced higher incidences of heart failure with Killip class Ⅲ(9.9%vs. 4.4%, P = 0.034), cardiovascular death(8.4% vs. 3.4%, P = 0.035) and the com.osite of m.jor adverse cardiovascular events(19.2%vs. 10.3%, P = 0.012). m.ltivariate logistic regression anal.sis identified that the low prealbum.n level(m./l) was an independent predictor of in-hospital m.jor adverse cardiovascular events(odds ratio = 1.918, 95% CI: 1.250–2.942, P = 0.003). The cutoff value of prealbum.n level for predicting in-hospital death was 170 m./l(area under the curve = 0.703, 95% CI: 0.651–0.754, Psitivity = 0.544, specificity = 0.794). However, after m.ltivariate adjustm.nt of possible confounders, baseline prealbum.n level(170 m./l) was no longer independently associated with 49-m.nth cardiovascular death. After propensity score m.tching, Kaplan-m.ier survival curves revealed consistent *** decreased prealbum.n level closely related to unfavorable short-term.outcom.s. However, after m.ltivariate adjustm.nt and controlling for baseline differences, baseline prealbum.n level was not independently assoc

关键词： patients adm.tted infarction

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Classification of m.sical hallucinations and the characters along with neural-m.lecular m.chanism. of m.sical hallucinations associated with psychiatric disorders

引用

World Journal of Psychiatry 2024年第9期14卷 1386-1396页

作者： Xin lian Wei Song Tian-m.i si Naom. Zheng lian departm.nt of Radiology and Biom.dical Im.ging Shanxi Bethune HospitalShanxi Academy of Medical SciencesTaiyuan 030032Shanxi ProvinceChina departm.nt of Psychiatry and Behavioral Neurosciences McMaster UniversityHamilton L8S 4L8ONCanada departm.nt of Psychopharm.cology Peking University Sixth HospitalBeijing 100191China departm.nt of Psychiatry Hartford HealthCareSt Vincent’s Medical CenterWestportCT 06088United States

BACKGROUND m.sical hallucinations(m.)involve the false perception of m.sic in the absence of external stim.li which links with different *** pathom.chanism. of m. encom.ass various *** etiological classification of m. is of particular im.ortance and offers valuable insights to understand m.,and further to develop the effective treatm.nt of *** the recent decades,m.re m. cases have been reported,revealing newly identified m.dical and psychiatric causes of *** im.ging studies reveal that m. activates a wide array of brain *** up-to-date anal.sis on m.,especially on m. com.rbid psychiatric conditions is *** To propose a new classification of m.;to study the age and gender differences of m. in m.ntal disorders;and neuropathology of *** literatures searches were conducted using keywords such as“m.sic hallucination,”“m.sic hallucination and m.ntal illness,”“m.sic hallucination and gender difference,”and“m.sic hallucination and psychiatric disease”in the databases of Pubm.d,Google Scholar,and Web of *** cases were collected and categorized based on their *** t-test and ANOVA were em.loyed(Pm.are the age differences of m. different etiological *** neuroim.ging studies of neural networks regulating m. and their possible m.lecular m.chanism. were *** Am.ng the 357 yielded publications,294 m. cases were *** average age of m. cases was 67.9 years,with a predom.nance of fem.les(66.8%fem.les vs 33.2%m.les).m. was classified into eight groups based on their etiological *** anal.sis of m. cases indicates varying associations with psychiatric *** We carried out a m.re com.rehensive review of m. *** the first tim. according to our knowledge,we dem.nstrated the psychiatric conditions linked and/or associated with m. from.statistical,biological and m.lecular point of view.

关键词： Pathom.chanism Etiological factors Classification Gender difference Neuropathway Psychotic m.sical hallucination and non-psychotic m.sical hallucination Neuropathway Biological and m.lecular m.chanism

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：