检索结果-南通市图书馆

A random.zed com.arative study of flexible ureterorenoscopy versus m.ni-percutaneous nephrolithotom. for treatm.nt of renal stones 2 cm.or less

引用

Current Urology 2024年第4期18卷 273-277页

作者： Am. E.Darwish Alaa E.Abdel m.neim.Abdelfatah I.Ahm.d Seif m.Ham.y Hassan A.Abolella Ahm.d reda Urology and Nephrology Hospital Faculty of MedicineAssiut UniversityAssiutEgypt Departm.nt of Urology Faculty of MedicineAlexandria UniversityAlexandriaEgypt

Background Flexible ureterorenoscopy(fURS)and m.ni-percutaneous nephrolithotom.(m.CNL)have been increasingly used for the treatm.nt of renal ***,current guidelines do not recom.end one m.dality over the *** aim.of this study is to com.are the safety and efficacy of treatm.nt with fURS versus m.CNL for renal stones sized 2 cm.or *** and m.thods A prospective,random.zed,com.arative study was conducted between January 2019 and July 2021 at 3 tertiary care urology *** criteria were adult patients with renal stone(s)≤2 cm.with inappropriateness or failure of extracorporeal shock-wave *** were assigned to 1 of 2 treatm.nt groups,either m.CNL or *** prim.ry outcom.s were assessed:(1)initial success rate,defined as the absence of clinically significant residual fragm.nts(>2 m.)on kidney ureter bladder X-ray and ultrasound on the first postoperative day;and(2)com.lications,which were reported according to the m.dified Clavien-Dindo classification *** outcom.s included final success rate,defined as the absence of clinically significant residual fragm.nts on noncontrast com.uted tom.graphy on the 90th postoperative day;operative tim.;auxiliary procedures and blood transfusion rates;hem.globin drop;and length of hospital *** One hundred and eighteen procedures were analyzed(59 in each group).The initial success rate of the m.CNL group(93%)was significantly higher than that of the fURS group(70%).Com.lications occurred m.re frequently with m.CNL than fURS(44.1%vs.18.6%,respectively).Final success rate,operative tim.,and length of hospital stay were com.arable between the 2 *** m.ni-percutaneous nephrolithotom. is m.re effective than fURS as a single-step treatm.nt for renal stonesm.because of its higher initial success rate and lower auxiliary procedure ***,m.CNL results in significantly higher com.lication rates than fURS.

关键词： Endourology Flexible ureterorenoscopy m.ni-percutaneous nephrolithotom. Retrograde intrarenal surgery Urolithiasis

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

On the Hyper Therm.l Therapy of Tum.r Tissues by Direct Laser Heating and Gold Nano Particles

引用

Journal of Biom.terials and Nanobiotechnology 2014年第1期5卷 44-51页

作者： Badiaa Fasla reda Benm.una m.stapha Benm.una m.crom.lecular Research Laboratory Department of Physics Faculty of Sciences University Abou Bekr Belkaid Tlemcen Algeria

Hyper therm.l therapy using lasers is em.rging as a new prom.sing route for the cancer treatm.nt. The tum.r can be directly heated by the radiation or indirectly using gold nano particles based on plasm.n resonance phenolm.non. These two possibilities are explored here by solving the space and tim. dependent bio-heat equation under different conditions. The knowledge of tem.erature profiles in the tum.r region helps to bypass the painful placem.nt of sensors for m.nitoring tum.r’s heating by the laser. Im.ortant properties which could be useful for developing an efficient tum.r therapy are introduced for the first tim.. It is found that the effects of m.tabolism.consist essentially in a redefinition of the blood tem.erature which increases proportional to the heat of m.tabolism. Blood perfusion in a given tissue leads to a new characteristic length of order one or two centim.ters and a blood convection param.ter typically of order 30 W·m.1·K-1. Effects of these param.ters are scrutinized within the resolution of the bio-heat equation under a variety of conditions. In general, space m.dulations of the tem.erature throughout biological tissues are weak but front kinetics are quite fast. Specific exam.les show the way to m.nitor the tem.erature rise taking into account the tum.r’s nature and size.

关键词： Hyper Therm.l Therapy Gold Nano Particles Plasm.n Resonance Laser Heating

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

面向热界面应用的多壁碳纳米管阵列生长优化

引用

工程热物理学报 2017年第6期38卷 1323-1326页

作者：邱琳 SCHEIDER Kim.erly radwan Abu Suhaib LARKIN Sarah LeighAnn SALTONSTALL Blair Christopher 冯妍卉张欣欣 NORRIS m.Pam.la 北京科技大学能源与环境工程学院北京100083 北京科技大学冶金工业节能减排北京市重点实验室北京100083 弗吉尼亚大学机械与航空航天工程系夏洛茨维尔va229044746

由于杰出的导热和柔韧性能,碳纳米管被认为是提升大功率微电子系统热耗散性能的理想热界面材料。多壁碳纳米管阵列能实现低成本的大规模生产,成为制备热界面材料的最佳选择。但是多壁碳纳米管阵列的生长过程的最优因素尚未廓清。本文从... 详细信息

由于杰出的导热和柔韧性能,碳纳米管被认为是提升大功率微电子系统热耗散性能的理想热界面材料。多壁碳纳米管阵列能实现低成本的大规模生产,成为制备热界面材料的最佳选择。但是多壁碳纳米管阵列的生长过程的最优因素尚未廓清。本文从实验上系统研究了催化剂的升华温度对浮动催化化学气相沉积法制备出的多壁碳纳米管阵列结构及热输运的影响规律,得到了最佳的催化剂升华温度,为实现最优导热性能的多壁碳纳米管阵列热界面材料提供实验指导。

关键词：热界面材料多壁碳纳米管阵列浮动催化化学气相沉积拉曼光谱

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 Residual Tim. Based Scheduling: Perform.nce m.deling in m.G/C Queueing Applications

引用

Journal of Software Engineering and Applications 2010年第8期3卷 746-755页

作者： Sarah Tasneem.Lester Lipsky reda Am.ar Howard Sholl 不详

It is well known, in queueing theory, that the system.perform.nce is greatly influenced by scheduling policy. No universal optim.m.scheduling strategy exists in system. where individual custom.r service dem.nds are not known a priori. However, if the distribution of job tim.s is known, then the residual tim. (expected tim. rem.ining for a job), based on the service it has already received, can be calculated. Our particular research contribution is in exploring the use of this function to enhance system.perform.nce by increasing the probability that a job will m.et its deadline. In a detailed discrete event sim.lation, we have tested m.ny different distributions with a wide range of C2 and shapes, as well as for single and dual processor system. Results of four distributions are reported here. We com.are with RR and FCFS, and find that in all distributions studied our algorithm.perform. best. In the study of the use of two slow servers versus one fast server, we have discovered that they provide com.arable perform.nce, and in a few cases the double server system.does better.

关键词： Sim.lation Residual Tim. Scheduling Coefficient of Variation m.G/C Queue Processor Sharing

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

Assessm.nt of Cystatin C-Based GFR Estim.ting Equations as a Novel Reliable Biom.rker for Renal Pathology Diagnosis in Patients with m.ld to Severe Tubular Affection

引用

Open Journal of Nephrology 2022年第4期12卷 426-440页

作者： m.ham.d Ali Ibrahim.Norhan Nagdi Cherry reda Kam.l Nephrology Departm.nt Faculty of Medicine Ain Shams University Cairo Egypt

Background and Objective: Serum.creatinine, a com.only used biom.rker in determ.ning glom.rular filtration rate (GFR) and chronic kidney disease (CKD) stage, is highly variable biologically and does not rise until > 50% of renal function (RF) im.airm.nt occurs. Also, its production is not constant & is affected by m.ny factors as m.scle m.ss, age, inflam.ation. On the other hand, Cystatin C shows m.re stable production m.king it m.re suitable for assessm.nt of kidney function. Also, It has been shown that the progression of CKD to renal failure, even in glom.rular diseases, correlated better with the degree of tubular dam.ge and interstitial fibrosis. So, our aim.was to investigate the relation between kidney function assessed by different cystatin (Cys-C)-based estim.ted glom.rular filtration rate (eGFR) in com.arison to the gold standard Iohexol (Ioh) based m.asured (m.GFR in relation to the pathological degree of tubular dam.ge in renal biopsy. To our knowledge, this is the first study that evaluates the relation of (Cys-C)-based eGFR to tubulointerstitial fibrosis in renal biopsy. m.thods: This cross-sectional study was perform.d on 20 CKD cases who attended the Nephrology Departm.nt at Ain Sham. University, where a renal biopsy was obtained, and individuals were allocated into two groups: group A (GA) with m.ld tubular affection (TA) and group B (GB) with m.derate to severe TA. All participants were referred for m.asure-m.nt of GFR using Iohexol (Ioh) together with serum.Cys-C level and eGFR was calculated using different Cys-C-based GFR estim.ting equations, which were further com.ared using m.ltivariate Linear Regression and Bland-Altm.n analyses. Results: Our results revealed a substantial statistical difference am.ng the two studied groups regarding Hb, s creatinine, urea. GB had significantly lower levels for both eGFR and m.FR (82, 93, 115, or 115) m./m.n/1.73m.sup>2, Vs. GA (200, 123, 162 or 124) m./m.n/1.73m.sup>2, according to GFR_iohexol,

关键词： Cystatin C Chronic Kidney Diseases Glom.rular Filtration Rate Iohexol Clearance

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

Using an Absolute Cavity Pyrgeom.ter to Validate the Calibration of a Secondary Standard Pyrgeom.ter Outdoors, Independent from.the Reference Value of the Atm.spheric Longwave Irradiance

引用

Atm.spheric and Clim.te Sciences 2020年第4期10卷 530-537页

作者： Ibrahim.reda Afshin Andreas Peter Gotseff m.rk Kutchenreiter National Renewable Energy Laboratory (NREL) Golden Colorado USA

Accurate m.asurem.nts of broadband outdoor longwave irradiance are im.ortant for renewable energy applications and the study of the atm.sphere and clim.te change. A unique m.thod of pyrgeom.ter calibration has been developed to im.rove the m.asurem.nt uncertainty [1]. The results of this m.thod yielded irradiance values within ±3 W/m.sup>2 of those traceable to the World InfraRed Standard Group (WISG). This article describes a technique for validating this pyrgeom.ter calibration m.thod using two Absolute Cavity Pyrgeom.ters (ACPs). The ACPs and pyrgeom.ter m.del PIR were deployed outdoors and the irradiance m.asured by the PIR was com.ared against the average irradiance m.asured by the two ACPs. The irradiance m.asured by the PIR was calculated using two equations, NREL equation and the Physikalisch m.teorologisches Observatorium.Davos (Pm.D) equation. The uncertainty with 95% confidence level (m.Um.95) of the irradiance m.asured by the PIR using NREL equation equaled ±3.51 W/m.sup>2 with respect to SI and using Pm.D equation m.Um.95 equaled ±2.99 W/m.sup>2 with respect to SI. These results suggest that the PIR calibration m.thod m.ght be useful in addressing the international need for a secondary standard pyrgeom.ter traceable to SI.

关键词： Absolute Cavity Pyrgeom.ter ACP Pyrgeom.ter WISG Atm.spheric Longwave Irradiance

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

Physical Characteristics of the Algerian Goalkeepers

引用

Journal of Sports Science 2016年第4期4卷 247-249页

作者： Guerioune Khaled m.him.ate Rachid Ham.ouche Ahm.d reda Departm.nt of Sport Science University of Mantouri Constantine 25000 Algeria

The aim.of this study is to determ.ne the characteristics anthropom.tric and physical Algerian goalkeepers, who all have achieved the test of Wam.val, the vertical jum. （Cm., S J） on a punt of strength （Ergo Tester Globus, Italy）, the 20m.coordination speed test of Cazorla, and the Wingate test on ergom.tric bicycle （m.nark, m.del 834 E） with a braking force of 75 g/kgl of body m.ss.

关键词： Goalkeeper physical characteristics sport perform.nce.

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

m.thionine sources and genotype affect em.ryonic intestinal developm.nt,antioxidants,tight junctions,and growth-related gene expression in chickens

引用

Anim.l Nutrition 2024年第1期16卷 218-230页

作者： Jam.s K.Lugata Sawadi F.Ndunguru Gebrehaweria K.reda Xénia E.Ozsváth Eszter Angyal Levente Czeglédi Gabriella Gulyás Renáta Knop János Oláh Zoltán m.szár Rita Varga Brigitta Csernus Csaba Szabó Departm.nt of Anim.l Nutrition and Physiology Faculty of Agriculture and Food Sciences and Environmental ManagementUniversity of DebrecenDebrecenHungary Departm.nt of Anim.l Husbandry Faculty of Agriculture and Food Sciences and Environmental ManagementUniversity of DebrecenDebrecenHungary Faculty of Agriculture and Food Sciences and Environm.ntal m.nagem.nt Doctoral School of Animal ScienceUniversity of DebrecenDebrecenHungary Institutes for Agricultural Research and Educational Farm University of DebrecenDebrecenHungary Departm.nt of Anatom. Histology and EmbryologyFaculty of MedicineUniversity of DebrecenDebrecenHungary Departm.nt of Evolutionary Zoology and Hum.n Biology Faculty of Science and TechnologyUniversity of DebrecenDebrecenHungary

m.thionine(m.t)is an essential and first lim.ting am.no acid in the poultry diet that plays a significant role in chicken em.ryonic developm.nt and *** present study exam.ned the effect of in ovo injection of DL-m.t and L-m.t sources and genotypes on chicken em.ryonic-intestinal developm.nt and *** eggs of the two genotypes,TETRA-SL layer hybrid(TSL)—com.ercial layer hybrid and Hungarian Partridge colored hen breed(HPC)—a native genotype,were random.y distributed into four treatm.nts for each *** treatm.nt groups include the following:1)control non-injected eggs(NoIn);2)saline-injected(SaIn);3)DL-m.t injected(DLm.;and 4)L-m.t injected(Lm..The in ovo injection was carried out on 17.5 d of em.ryonic developm.nt;after hatching,eight chicks per group were sacrificed,and the jejunum.was extracted for *** results showed that both DLm.and Lm.groups had enhanced intestinal developm.nt as evidenced by increased villus width,villus height,and villus area(Pm.ared to the *** DLm.group had significantly reduced crypt depth,glutathione(GSH)content,glutathione S-transferase 3 alpha(GST3),occludin(OCLN)gene expression and increased villus height to crypt depth ratio in the TSL genotype than the Lm.group(Pm.2),occludin(OCLN),superoxide dism.tase 1(SOD1),and GST3 genes than the TSL genotype(Pm.t enhanced intestinal developm.nt,and function,with genotypes responding differently under norm.l *** also influenced the expression of intestinal antioxidants,tight junction,and growth-related genes.

关键词： DL-m.thionine L-m.thionine In ovo injection Intestinal developm.nt Poultry

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

Developm.nt of an Arabic version of the National Eye Institute Visual Function Questionnaire as a tool to study eye diseases patients in Egypt

引用

International Journal of Ophthalm.logy(English edition) 2014年第5期7卷 891-897页

作者： Nizar Saleh Abdelfattah m.ham.d Am.ad Ahm.d A Salam. m.rina E Israel Ghada A Elhawary Ahm.d E radwan m.ham.d m.Elgayar Tam.r m.EL Nakhal Islam.T Elkhateb Heba A Hashem.Doha K Em.aby Am.ra A Elabd Reem.K Elwy m.gdi S Yacoub Ham.y Salem.m.ham.d Abdel-Baqy Ahm.d Kassem Doheny Im.ge Reading Center Doheny Eye InstituteUniversity of California Departm.nt of Ophthalm.logy Faculty of MedicineCairo University Departm.nt of Ophthalm.logy Faculty of MedicineMenoufia University Faculty of m.dicine Ain Shams University Departm.nt of Ophthalm.logy Faculty of Medicine University of Alexandria Faculty of m.dicine Beni Suef University Alexandria Regional Center for Wom.n's Health&Developm.nt

AIm.To develop and test an Arabic version of the National Eye Institute Visual Function Questionnaire-25(NEI-VFQ-25).m.THODS:NEI-VFQ-25 was translated into Arabic according to WHO translation guidelines. We enrolled adult consenting patients with bilateral chronic eye diseases who presented to 14 hospitals across Egypt from.October to Decem.er 2012, and docum.nted their clinical findings. Psychom.tric properties were then tested using ***:We recruited 379 patients, whose m.an age was(54.5±15)y. Of 46.2% were m.les, 227 had cataract,31 had glaucom., 23 had retinal detachm.nt, 37 had diabetic retinopathy, and 61 had m.scellaneous visual defects. Non-response rate and the floor and ceiling num.ers of the Arabic version(ARB-VFQ-25) were calculated. Internal consistency was high in all subscales(except general health), with Cronbach-α ranging from..702-0.911. Test-retest reliability was high(intraclass correlation coefficient 0.79).CONCLUSION:RB-VFQ-25 isareliableandvalidtool for assessing visual functions of Arabic speaking patients. However, som. questions had high non-response rates and should be substituted by available alternatives. Our results support the im.ortance of including self-reported visual functions as part of routine ophthalm.logic exam.nation.

关键词： Arabic psychom.trics questionnaires National Institutes of Health visual function questionnaire

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

Preem.tive living donor kidney transplantation:Access,fate,and review of the status in

引用

World Journal of Nephrology 2023年第3期12卷 40-55页

作者： Rabea Ahm.d Gadelkareem.Am. m.stafa Abdelgawad Ahm.d reda Nashwa m.stafa Azoz m.ham.ed Ali Zarzour Nasreldin m.ham.ed Hisham.m.khtar Ham.ouda m.hm.ud Khalil Departm.nt of Urology Assiut Urology and Nephrology HospitalFaculty of MedicineAssiut UniversityAssiut 71515Egypt Departm.nt of Internal m.dicine Assiut University HospitalFaculty of MedicineAssiut UniversityAssiut 71515Egypt

BACKGROUND Preem.tive living donor kidney transplantation(PLDKT)is recom.ended as the optim.l treatm.nt for end-stage renal *** To assess the rate of PLDKT am.ng patients who accessed KT in our center and review the status of PLDKT in *** We perform.d a retrospective review of the patients who accessed KT in our center from.Novem.er 2015 to Novem.er *** addition,the PLDKT status in Egypt was reviewed relative to the *** Of the 304 patients who accessed KT,32 patients(10.5%)had preem.tive access to KT(PAKT).The m.ans of age and estim.ted glom.rular filtration rate were 31.7±13 years and 12.8±3.5 m./m.n/1.73 m.,***-nine patients had KT,including 3 PLDKTs only(5.1%of total KTs and 9.4%of PAKT).Twenty-nine patients(90.6%)failed to receive PLDKT due to donor unavailability(25%),exclusion(28.6%),regression from.donation(3.6%),and patient regression on starting dialysis(39.3%).In m.ltivariate analysis,known prim.ry kidney disease(P=0.002),patient age(P=0.031)and sex(P=0.001)were independent predictors of achievem.nt of KT in our ***,PAKT was not significantly(P=0.065)associated with the achievem.nt of *** of the literature revealed lower rates of PLDKT in Egypt than those in the *** Patient age,sex,and prim.ry kidney disease are independent predictors of achieving living donor *** its non-significant effect,PAKT m.y enhance the low rates of *** m.in causes of non-achievem.nt of PLDKT were patient regression on starting regular dialysis and donor unavailability or exclusion.

关键词： Access to kidney transplantation Donor regression Kidney transplantation Living donors Preem.tive kidney transplantation Transplantation

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：