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1Laparoscopic Partial Nephrectomy With Segmental Renal Artery Clamping:Technique and Clinical Outcomes显示文摘Background:Warm ischemic injury is one of the most important factors affecting renal function in partial nephrectomy(PN).The technique of segmental renal artery clamping emerges as an alternative to conventional renal artery clamping for renal hilar control.Objective:To evaluate the feasibility and efficiency of laparoscopic PN(LPN) with segmental renal artery clamping in comparison with the conventional technique.Design,setting,and participants:A total of 75 patients underwent LPN from June 2007 to November 2009.All patients had T1a or T1b tumor in one kidney and a normal contralateral kidney.Thirty-seven patients underwent surgeries with main renal artery clamping,and 38 underwent surgeries with segmental artery clamping.Intervention:All procedures were performed by the same laparoscopic surgeon.Measurements:Blood loss,operation time,warm ischemia(WI) time,and complications affected renal function before and after operation were recorded.Results and limitations:All LPNs were completed without conversion to open surgery or nephrectomy.The novel technique slightly increased WI time(p < 0.001) and intraoperative blood loss(p = 0.006),while it provided better postoperative affected renal function(p < 0.001) compared with the conventional technique.The total complication rate was 12%.Among the 38 cases where segmental renal artery clamping was performed,7 had to convert to the conventional method.Tumor size and location influenced the number of clamped segmental arteries.Long-term postoperative renal function is still awaited.Conclusions:LPN with segmental artery clamping is safe and feasible in clinical practice.It minimizes the intraoperative WI injury and improves early postoperative affected renal function compared with main renal artery clamping.(C) 2010 European Association of Urology.Published by Elsevier B.V.All rights reserved.Shao,P.F. Qin,C. Yin,C.J. Meng,X.X. Ju,X.B. Li,J. Lü,Q.A. Zhang,W. Xu,Z.Q.Shao,Pengfei Qin,Chao Yin,Changjun Meng,Xiaoxin Ju,Xiaobing Li,Jie Lü,Qiang Zhang,Wei Xu,Zhengquan] Nanjing Med Univ,Affiliated Hosp 1,Dept Urol,Nanjing,Peoples R China.Guangzhou Rd 300,Nanjing 210029,Peoples R China. 2011南京医科大学学报(自然科学版)2011,31,7:123
2代偿性肝硬化病人食管静脉曲张的双功能多普勒超声的无创性诊断显示文摘目的前瞻胜创建并评价双功能多普勒超声(us)指数对代偿性肝硬化病人(Child—PughA级)是否存在食管静脉曲张的诊断准确度,以内镜结果为参照标准。方法此项研究得到机构审查委员会批准,所有参与者均获得知情同意书。333例病人纳入此前瞻性研究,接受双功能多普勒US与内镜检查,数据分为培训(n=240)和确认(n=143)两组。应用单变量和多变量逻辑回归分析双功能多普勒超声的各项参数,包括平均门静脉流速(PVV)、肝脏阻抗指数、脾阻抗指数和脾指数,以便发现提示食管静脉曲张存在的独立因素。C.H. Liu S.J. Hsu C.C. Liang F.C. Tsai J.W. Lin C.J. Liu 叶锦棠(译) 唐光健(校) 2008国际医学放射学杂志2008,31,5:12
3柑桔花期多胺类代谢及其对坐果的影响显示文摘对30年生 Troyer 枳橙砧(Citrus sinensis×Poncirus trifoliata)华盛顿脐橙[Citrussinensis(L.)Osbeck]及20年生枳砧[Poncirus trifoliata(L.)Raf.]宫川温州蜜柑(Citrus unshiuMarc.)进行开花期游离多胺变化规律研究,并于露白期对结果枝局部喷施200mmol·1^(-1)尿素、100mmol·1^(-1)精氨酸及10mmol·1^(-1)的腐胺,以清水为对照。结果表明,花期以腐胺含量变化最为明显,盛花期达高峰。3种处理均较对照显著地提高了花朵组织的腐胺含量,并有效地提高了坐果率。郑玉生 张秋明 Lovatt C.J. 1997果树科学1997,14,4:9
4RECIPROCATING EXTRUSION OF IN SITU Mg_2Si REINFORCED Mg-Al BASED COMPOSITE显示文摘Mg2Si 增强了与硅的高数量合成的基于的 Mg-Al 被永久模子扔准备,然后由互给渗出挤出(RE ) 在以后合成被 homogenization 热处理处理。在 Mg2Si 的形态学和机械性质上处理的 RE 的效果合成被调查,开发新方法精制 Mg2Si 阶段并且改进它的形状。结果证明 RE 在精制 Mg2Si 阶段是很有用的。处理的 RE 传递越多,精制效果将是越多更好。而且, Mg2Si 阶段的一致分发将是更多在合成。在以后合成被 RE 为 12 张通行证处理,大多数 Mg2Si 阶段是 equiaxed 与在 20 μ m 下面的小粒的直径,并且在矩阵一致地散布了合成。机械性质合成能被 RE 处理显著地增加,并且处于当演员组状态比那高得多。作为温度上升,张力的力量被减少。为为 12 张通行证处理的合成 RE,张力的力量,收益力量,和延伸是 325.9 MPa, 211.4 MPa,并且 3.3% 在房间温度, 288.2 MPa, 207.7 MPa,并且 7.8% ,分别地在 150 ° C。与在房间温度的性质比较,张力的力量和收益力量高并且仅仅在 150 ° C 在 11.6% 和 1.8% 减少。Mg2Si 增强了基于的 Mg-Al 合成在 150 ° C 拥有好热抵抗。到热的效果的优秀抵抗被归因于高融化温度和好 Mg2Si 阶段的好热稳定性,它一致地是分布式的在合成,并且有效地妨碍滑行的谷物边界和脱臼运动。Z.M. Zhang C.J. Xu X.F. Guo S.Z. Jia 2008Acta Metallurgica Sinica(English Letters)2008,21,3:8
5NUMERICAL SIMULATION OF THE THERMO-MECHANICAL PROCESS FOR BEAM BLANK CONTINUOUS CASTING显示文摘The aim of this study was to simulate the solidification process of beam blank continuous casting, and then find the reasons for the typical defects of the beam blank. A two-dimensional transient coupled finite element model has been developed to compute the temperature and stress profile in beam blank continuous casting. The enthalpy method was used in the heat conduction equation. The thermo-mechanical property in the mushy zone was taken into consideration in this calculation. It is shown that at the mold exit the thickness of the shell had its maximum value at the flange tip and its minimum value at the fillet. The temperature had a great fluctuation on the surface of the beam blank in the secondary cooling zone. At the unbending point, the surface temperature of the web was in the brittleness temperature range under the present condition. To ensure the quality, it is necessary to weaken the intensity of secondary cooling. At the mold exit the equivalent stress and strain have higher values at the flange tip and at the web. From the spray 1 to the unbending point, the maximum values of stress and strain gradually moved to the internal section of the flange tip and the web. However, whenever, there were bigger stress and strain values near the flange tip and the web than in the other parts, it must be very easy to generate cracks at those positions. Now, online verification of this simulation has been developed, which has proved to be very useful and efficient to instruct the practical production of beam blank continuous casting.W. Chen Y.Z. Zhang C.J. Zhang L.G. Zhu B.X. Wang W.G. Lu J.H. Ma 2007Acta Metallurgica Sinica(English Letters)2007,20,4:8
6持续性胸痛预示无闭塞性冠状动脉疾病女性中的心血管事件:NIH-NHLBI发起的女性缺血综合征评价(WISE)研究的结果显示文摘Aims: Women with chest pain but without obstructive coronary artery disease(CAD) are considered at low risk for cardiovascular(CV) events, but half continue to experience debilitating chest pain over many years. This study compared CV outcomes in women with persistent chest pain(PChP) vs. those without PChP. Methods and results: We studied 673 Women’s Ischaemia Syndrome Evaluation(WISE) participants with chest pain undergoing coronary angiography for suspected myocardial ischaemia and at least 1 year of follow-up. PChP was defined as self-reported continuing chest pain after 1 year. Events occurring after that year were recorded for a median of 5.2 years. We compared CV event rates for women with and without PChP in subgroups with and without obstructive CAD. The median age was 58 years, 20%were racial minorities, 45%had PChP, 39%had obstructive CAD. Among women without CAD, those with PChP had more than twice the rate of composite CV events(P=0.03), that included non-fatal myocardial infarctions(P=0.11), strokes(P=0.03), congestive heart failure(P=0.38), and CV deaths(P=0.73), compared with those without PChP. In women with CAD, there was no difference in composite CV events in those with and without PChP(P=0.72). Conclusion: Among women undergoing coronary angiography for suspected myocardial ischaemia, PChP in women with no obstructive CAD predicted adverse CV outcomes. Such women might benefit from additional evaluation and aggressive risk factor modification therapy.Johnson B.D. Shaw L.J. Pepine C.J. 郭俊 2006世界核心医学期刊文摘(心脏病学分册)2006,,12:8
7MICROSTRUCTURE OF Mg-6.4Zn-1.1Y ALLOY FABRICATED BY RAPID SOLIDIFICATION AND RECIPROCATING EXTRUSION显示文摘以便探索方法准备高张力增强 quasicrystal 的镁合金,有 50-60 的厚度的很快团结的 Mg-6.4Zn-1.1 Y 镁合金的薄片嗯被 melt 旋转获得单个压路机的设备,和薄片然后被互给处理成杆挤出和直接挤出。合金的微观结构被光显微镜和 SEM 分析,并且成分阶段被 XRD 识别。阶段转变和它的发作温度被微分热分析器(DTA ) 决定。分析结果证明为 Mg-6.4Zn-1.1Y 合金的快速的团结能禁止最容易溶解的反应,在 a-Mg 溶质答案拓宽 Zn 的稳固的溶解度,并且阻碍 Mg3 Y2 Zn3 和 MgZn2 混合物的形成,并且因此帮助从 melt 直接形成的 icosahedral Mg3 YZn6 quasicrystal。薄片的 mierostrueture 由 a-Mg 固体答案和 icosahedral Mg3 YZn6 quasierystal 组成。稠密的杆能由二通行证的互给的挤出和直接挤出由薄片制造。在在杆的薄片之间的接口能完美地被焊接并且连接。在互给的挤出和直接挤出过程期间,更多的 Mg3 YZn6 混合物被猛抛并且一致地散布了,而杆拥有从很快团结的薄片继承的好微观结构。杆包含仅仅二个阶段:是的 amagnesium 固体答案矩阵和在矩阵一致地分散的好 icosahedral Mg3 YZn6 quasicrystal。Z.M. Zhang C.J. Xu X.F. Guo 2008Acta Metallurgica Sinica(English Letters)2008,21,1:7
8MICROSTRUCTURE OF BINARY Mg-Al EUTECTIC ALLOY WIRES PRODUCED BY THE OHNO CONTINUOUS CASTING PROCESS显示文摘在直径的约 5 公里的方向性地团结的二进制 Mg-Al 最容易溶解的合金电线被 Ohno 生产连续的扔( OCC )进程和微观结构是 examined.It 被发现电线拥有沿着它的轴的 direction.The 微观结构特征的明显的单向性的生长,这由源于竞争生长的平行圆柱的谷物组成 equiaxed 谷物在圆柱的谷物包括的哑巴 bar.Each 的头上团结了常规最容易溶解的 -Mg 和 -Mg17Z.M. Zhang T. Lü C.J. Xu X.F. Guo 2008Acta Metallurgica Sinica(English Letters)2008,21,4:7
9Active Shape Models-Their Training and Application显示文摘T.F. Cootes C.J. Taylor D.H. Cooper J. Graham 1995Computer Vision and Image Understanding1995,,1:5
10Effects of serum containing natural cerebrolysin on glucose-regulated protein 78 and CCAAT enhancer-binding protein homologous protein expression in neuronal PC12 cells following tunicamycin-induced endoplasmic reticulum stress显示文摘BACKGROUND:Glucose-regulated protein 78(GRP78),a marker of endoplasmic reticulum stress,can prolong cell survival.Alternatively,CCAAT enhancer-binding protein homologous protein(CHOP),a transcription factor specific for endoplasmic reticulum stress,can cause cell cycle arrest and cell apoptosis. OBJECTIVE:To study the protective effects of serum containing natural cerebrolysin on endoplasmic reticulum stress in tunicamycin-induced neuronal PC12 cells,and analyze the influence on GRP78 and CHOP expressions. DESIGN,TIME AND SETTING:A parallel controlled study was performed at the Institute of Integrated Western and Traditional Chinese Medicine,Shenzhen Hospital,Southern Medical University,between March 2006 and August 2008. MATERIALS:Adult Sprague-Dawley rats were perfused with natural Cerebrolysin aqueous extract(0.185 g/kg/d) to produce serum containing natural Cerebrolysin.Physiological saline was used to produce blank serum.PC12 cell line was provided by Shanghai Institute of Cell Biology, Chinese Academy of Science.Tunicamycin was provided by Sigma(St.Louis,USA),and natural Cerebrolysin,containing ginseng,rhizoma gastrodiae,and gingko leaf(1:2:2),by Shengzhen Institute of Integrated Western and Traditional Chinese Medicine. METHODS:PC12 cells were treated with DMEM culture media containing 10%blank serum (normal control group),tunicamycin(1μg/mL;model group),and 5%,10%,and 15%serum containing natural cerebrolysin and tunicamycin(1μg/mL;low-,moderate-,and high-dose serum containing natural cerebrolysin groups),for 2 hours. MAIN OUTCOME MEASURES:PC12 cells were treated with tunicamycin for 48 hours after which apoptosis was measured using the TUNEL method to calculate apoptotic index.GRP78 expression was detected using immunocytochemistry.After 24 hours of treatment with tunicamycin,GRP78 and CHOP mRNA expressions were measured using RT-PCR. RESULTS:The apoptotic index and CHOP mRNA expression were in the model group and three cerebrolysin groups were significantly increased when compared to the normal control group(P<0.05).In contrast,GRP78 mRNA and protein expressions were significantly decreased(P<0.05). CONCLUSION:Serum containing natural cerebrolysin significantly reduced apoptosis in neuronal PC12 cells following tunicamycin-induced endoplasmic reticulum stress.These results may be related to an up-regulation of GRP78 expression and down-regulation of CHOP expression,both of which displayed dose-dependent effects.Zhengzhi Wu Ming Li Andrew C.J. Huang O Xiuqing Jia Yinghong Li Manyin Chen 2009Neural Regeneration Research2009,4,2:4
11Soil structure and management: a review显示文摘C.J. Bronick R. Lal 2004Geoderma2004,,1:4
12Active Shape Models-Their Training and Application显示文摘T.F. Cootes C.J. Taylor D.H. Cooper J. Graham 1995Computer Vision and Image Understanding1995,,1:3
13In vivo corrosion of four magnesium alloys and the associated bone response显示文摘F. Witte V. Kaese H. Haferkamp E. Switzer A. Meyer-Lindenberg C.J. Wirth H. Windhagen 2004Biomaterials2004,,17:3
14Differential effect of age on survival in advanced NSCLC in women versus men: Analysis of recent Eastern Cooperative Oncology Group (ECOG) studies, with and without bevacizumab显示文摘H.A. Wakelee S.E. Dahlberg J.R. Brahmer J.H. Schiller M.C. Perry C.J. Langer A.B. Sandler C.P. Belani D.H. Johnson 2011Lung Cancer2011,,3:3
15心肌内移植自体CD34^+干细胞治疗顽固性心绞痛:一项I/IIa阶段的随机双盲对照试验显示文摘背景:越来越多的冠心病患者经受心绞痛发作,而并不接受血运重建,且药物治疗效果差。临床前期研究表明,人类CD34+干细胞可诱导缺血心肌的新生血管形成,因而增强心肌灌注及功能。方法和结果:一项双盲、随机(3∶1)。Losordo D.W. Schatz R.A. White C.J. 刘相飞 2007世界核心医学期刊文摘(心脏病学分册)2007,,11:3
16Using ecological diversity measures with bacterial communities显示文摘Tom C.J. Hill Kerry A. Walsh James A. Harris Bruce F. Moffett 2003FEMS Microbiology Ecology2003,,1:3
17新生儿重症监护病房中氟康唑预防性给药对侵袭性念珠菌病发病和预后的影响显示文摘Objectives: We assessed the impact of intravenous fluconazole prophylaxis (FP) in extremely low birthweight (ELBW[<1000 g]) infants on the incidence of and ou tcome from invasive candidiasis (IC) in all infants admitted to a neonatal inten sive care unit (NICU). Study design: Beginning April 1, 2002, FP was given to EL BW infants aged < 5 days admitted to the NICU of Woman’s Hospital of Texas. Inf ants in NICU in whom IC developed during the first 2 years of FP (FP period) wer e compared with those with IC during 2000-2001. Results: During 2000-2001 and the FP period, the incidence of IC in ELBW infants decreased from 7%(15 of 206) to 2%(5 of 240) (P = .01), and the IC-related mortality rate decreased from 1 2%(4 of 33) to 0 (0 of 40) (P = .04); the incidence of IC increased from 0.1%( 4 of 2806) to 0.2%(8 of 3372) in infants of birth weight ≥1000 g (P = .06), an d no IC-related deaths occurred. During the FP period, IC developed in older in fants (24 vs 12 days; P = .12) who had similar risk factors for IC. Conclusion: Invasive candidiasis occurred in our NICU in spite of FP and shifted to bigger,m ore mature infants who had a better outcome.Healy C.M. Baker C.J. Zaccaria E. Campbell J.R. 朱新菊 2006世界核心医学期刊文摘(儿科学分册)2006,0,1:3
18Understanding and managing the morphology of branches incising into sand-clay deposits in the Dutch Rhine Delta显示文摘在在荷兰的西南的部分的 Rhine-Meuse 三角洲,河分支的形态学高度依赖于心土的 erodibility。在 Haringvliet 河口的闭合以后被开始的侵蚀过程由一个水坝分叉(在 1970 ) ,引起了几个连接分支的一个强壮的切口。由于这个区域的地质的进化,心土的岩性学显示出大变化在高度 erodible 沙并且糟糕 erodible 泥炭和泥土层。这研究显示出地质的信息怎么能被用来创造心土的 erodibility 的 3D 地图,并且这个信息怎么能被用来扼要表示在为词法模拟的计算模型的心土。在区域与之间的沙补丁的本地切入糟糕, erodible 床原因深搜索洞,因此在河岸不稳定性(流动幻灯片) 和象丁提,码头,隧道,和管道那样的构造的损坏上增加风险。数学模型的各种各样的类型,从 1D (SOBEK )到 quasi-3D (Delft3D ) 被使用了学习河床和可能的管理选择的未来发展。这些途径的结果证明模型为心土 schematization 要求一条层簿记途径的包括,不一致的沉积部分(沙泥) ,潮汐并且河分泌物边界条件,和能力减小搬运当模特儿。为减少风险的河管理,河床的发展怎么能在大规模和小规模上被探讨,被显示出。例如,沉积喂和床的固定的使用能为大规模管理被建议,当监视时,当对超过的小规模的开发的反应预先规定干预层次,在侵蚀的开始的干预能被建议。Kees SLOFF(C.J.) Ary VAN SPIJK Esther STOUTHAMER Arjan SIEBEN 2013International Journal of Sediment Research2013,28,2:3
19Hot Cracking in AZ31 and AZ61 Magnesium Alloy显示文摘This paper examined the impact of the number of thermal cycles and augmented strain on hot cracking in AZ31 and AZ61 magnesium alloy. Statistical analyses were performed. Following observation using a scanning electron microscope (SEM), an energy dispersive spectrometer (EDS) was used for component analysis. Results showed that Al content in magnesium alloy has an effect on hot cracking susceptibility. In addition, the nonequilibrium solidification process produced segregation in Al content, causing higher liquid Mg-alloy rich Al content at grain boundaries, and resulting into liquefied grain boundaries of partially melted zone (PMZ). In summary, under multiple thermal cycles AZ61 produced serious liquation cracking. AZ61 has higher (6 wt%) Al content and produced much liquefied Mg17Al12 at grain boundaries under multiple thermal cycles. The liquefied Mg17Al12 were pulled apart and hot cracks formed at weld metal HAZ due to the augmented strain. Since AZ31 had half the Al content of AZ61, its hot-cracking susceptibility was lower than AZ61. In addition, AZ61 showed longer total crack length (TCL) in one thermal cycle compared to that in three thermal cycles. This phenomenon was possibly due to high-temperature gasification of Al during the welding process, which resulted in lower overall Al content. Consequently, shorter hot cracks exhibited in three thermal cycles. It was found the Al content of AZ31 and AZ61 can be used to assess the hot-cracking susceptibility.C.J. Huang C.M. Cheng C.P. Chou F.H. Chen 2011Journal of Materials Science & Technology2011,27,7:3
20Structure of the Microbial Communities in Coniferous Forest Soils in Relation to Site Fertility and Stand Development Stage显示文摘T. Pennanen J. Liski E. B??th V. Kitunen J. Uotila C.J. Westman H. Fritze 1999Microbial Ecology1999,,2:2
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