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| 1 | Laparoscopic 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 | Modeling of Microstructure Evolution in 22MnB5 Steel during Hot Stamping显示文摘Automobile manufacturers have been increasingly adopting hot-stamped parts for use in newly designed vehicles to improve crash worthiness and fuel efficiency.However,the simulation of hot stamping is rather complex and challenging,and further research still needs to be done on hot stamping hardening mechanism.The microstructure evolution and hardening mechanisms during hot stamping of 22MnB5steel were thoroughly investigated,using information provided in the literatures as well as experimental results.New models were developed to predict the grain growth during heating and the flow stress of a manganese boron steel(22MnB5)with high hardenability by the Gleeble simulation experimental results.The deformed austenite decomposition during stamping and quenching was emphatically quantified based on the transformation thermodynamic and kinetic theories,and the relationship of microstructure to properties was analyzed.The results showed that the optimal process to obtain homogeneous and small lath martensite is heating at 900-950℃for 5min and then quenching at 50℃/s with a pressing time about 8s. | Li-juan ZHU Zheng-wei GU Hong XU Yi L Jiang CHAO | 2014 | Journal of Iron and Steel Research(International)2014,21,2: | 10 |
| 3 | U-Pb zircon geochronology, geochemistry and kinetics of the Huaniushan A-type granite in Northwest China显示文摘The Huaniushan granite is located at the Beishan orogenic belt, northwestern China. At the contact zone between the granite and marble, a hydrothermal Pb-Zn and skarn Au deposit is formed. LA-ICP-MS zircon U-Pb dating yielded a weighted mean 206Pb/238U age of 229.5±2.6 Ma (MSDW=0.93) for the Huaniushan granite, imply-ing its Late Triassic intrusion. Geochemistry analyses show that the Huaniushan granite is enriched in Si, K, Na, and REE, and depleted in Mg and Ca, with contents of SiO2 (70.8% to 74.4%), Na2O+K2O (8.8% to 10.2%), CaO (0.93% to 1.44%), and MgO (0.14% to 0.48%). REE is characterized by obvious negative Eu anomaly. Rb, Th, U, K, Pb, Nb, Zr and Hf elements are rich in the granite while Ba, Sr, P, Ti and Eu are deplete. The granite has a high (Zr+Nb+Ce+Y) abundance and 104 Ga/Al ratios. Petrology, major and trace elements data all indicate that the Hua-niushan granite is A-type granite which intruded in a post-collisional extensional tectonic setting. The magma was dominantly sourced from partial melting of crustal intermediate-felsic igneous rocks. Intensive magmatic activities and Au-Cu-Mo mineralization occurred throughout the Beishan orogenic belt during the period from ca. 240 to 220 Ma. | ZHU Jiang LÜ Xinbiao CAO Xiaofeng MO Yalong CHEN Chao | 2012 | Chinese Journal Of Geochemistry2012,31,1: | 10 |
| 4 | The association between the genetic polymorphisms of LMP2/LMP7 and the outcomes of HCV infection among drug users显示文摘Objective:To investigate a possible association of LMP2/LMP7 genes with chronic hepatitis C virus(HCV) infection,and to assess whether LMP2/LMP7 genes could influence the outcomes of HCV infection among drug users.Methods:Genomic DNAs of 362 anti-HCV sero-positive drug users and 225 control drug users were extracted from the peripheral blood leukocytes.The sero-positive patients were divided into those who had persistent infection and those who had spontaneously cleared the infection.Polymorphisms of LMP genes were determined by PCR combined with restriction fragment length polymorphism(RFLP).Results:The distribution of LMP2 genotypes among the control,persistent infection and spontaneous clearance groups were not different.However,the LMP7 codon 145 Gln/Lys,Lys/Lys,and Gln/Lys+Lys/Lys genotypes were found significantly more frequent in the persistent infection group than in control group(OR=1.75,95%CI=1.06~2.90;OR=3.16,95%CI=1.23-8.12;OR=1.94,95%CI=1.21-3.12,respectively).Similarly,the frequencies of the codon 145 Gln/Lys,Lys/Lys,and Gln/Lys+Lys/Lys genotypes were found significantly more frequent in the persistent infection group than in the spontaneous clearance group(OR=1.64,95%CI=1.04-2.57;OR=2.40,95%CI=1.09-5.28;OR=1.76,95%CI=1.152.69,respectively).Stratified analysis indicated that combined genotype Gln/Lys+Lys/Lys of the LMP7 gene was related to an increasing susceptibility to HCV infection(OR=1.91,95%CI=1.02-3.55;OR=2.19,95%CI=1.243.89;OR=1.91,95%CI=1.05-3.48,OR=2.86,95%CI=1.41-5.78,respectively)and the risk of persistent HCV infection(OR=1.94,95%CI=1.12-3.34;OR=2.02,95%CI=1.21-3.38;OR=1.78,95%CI=1.12-2.85,OR=2.23,95%CI=1.09-4.58,respectively)among>30-year-old,males,the injection drug user(IDU)subjects and/or the shorter duration drug users(≤5 y).Conclusion:These results suggest that polymorphism of the LMP7 gene may have an influence on the outcomes of HCV infection,and is one of the factors accounting for the genetic susceptibility to HCV infection among drug users. | Qian Cui Yongxiang Zhang Jing Su Chao Shi Na Lei Keqin Ding Jun Li Rongbin Yu L u Wang Ning Wang | 2010 | The Journal of Biomedical Research2010,24,5: | 6 |
| 5 | Gamma knife stereotactic radiosurgery for the management of incidentally-identified brain metastasis from non-small cell lung cancer显示文摘 | Marko NF Suh JH Chao ST Barnett GH Vogelbaum MA Toms S Well R J Angelov L | 2011 | 中国神经肿瘤杂志2011,9,1: | 4 |
| 6 | Stereotactic radiosurgery as single-modality treatment of incidentally identified renal cell carcinoma brain metastases显示文摘 | Marko NF Angelov L Toms SA Suh JH Chao ST Vogelbaum MA Barnett GH Weil RJ | 2010 | 中国神经肿瘤杂志2010,8,3: | 4 |
| 7 | Variations in leaf carbon isotope composition along an arid and semi-arid grassland transect in northern China显示文摘Aims We aimed to quantify the variation of leafδ^(13)C along an arid and semi-arid grassland transect in northern China.We also evaluated the effects of environmental factors(i.e.precipitation,temperature and altitude)on the spatial variation of leafδ^(13)C in northern grasslands and Tibetan Plateau,China.Method We sampled leaves of plant species belonging to three herb genera(Stipa spp.,Leymus spp.and Cleistogenes spp.)and three shrub genera(Caragana spp.,Reaumuria spp.and Nitraria spp.)for carbon isotope analysis from 50 locations along a 3200-km arid and semiarid grassland transect in northern China.Leafδ^(13)C data in Tibetan Plateau and northern grasslands in China were also compiled from studies in literature.Important Findings Along the transect,leafδ^(13)C for C_(3)plants ranged from−28.0‰to−23.3‰,and from−16.3‰to−13.8‰for C_(4)plant Cleistogenes spp..The change in leafδ^(13)C ranged from−0.26‰to−3.51‰with every 100 mm increase of annual precipitation,and leafδ^(13)C of shrubs(Nitraria spp.,Reaumuria spp.and Caragana spp.)responded more markedly to climatic factors(precipitation and temperature)than that of herbs(Stipa spp.,Leymus spp.and Cleistogenes spp.),indicating higher sensitivity of shrubδ^(13)C to climatic changes.The most important factor regulating spatial variations of leafδ^(13)C in Tibetan Plateau was altitude,while it was precipitation in northern grasslands.Our results suggested that shrubs are more adapted to increasing drought in arid and semi-arid grassland.Controls of environmental factors on leafδ^(13)C depended on the most limiting factors in arid grassland(precipitation)and Tibetan grasslands(atmospheric CO_(2)concentration). | Chao Wang Dongwei Liu Wentao Luo Yunting Fang Xiaobo Wang Xiaotao Lü Yong Jiang Xingguo Han Edith Bai | 2016 | Journal of Plant Ecology2016,9,5: | 3 |
| 8 | Establishment and validation of a model for brain injury state evaluation and prognosis prediction显示文摘Purpose:Traumatic brain injury(TBI)is one of the leading causes of disability and death in modern times,whose evaluation and prognosis prediction have been one of the most critical issues in TBI management.However,the existed models for the abovementioned purposes were defective to varying degrees.This study aims to establish an ideal brain injury state clinical prediction model(BISCPM).Methods:This study was a retrospective design.The six-month outcomes of patients were selected as the end point event.BISCPM was established by using the split-sample technology,and externally validated via different tests of comparison between the observed and predicted six-month mortality in validating group.TBI patients admitted from July 2006 to June 2012 were recruited and randomly divided into establishing model group and validating model group.Twenty-one scoring indicators were included in BISCPM and divided into three parts,A,B,and C.Part A included movement,pupillary reflex and diameter,CT parameters,and secondary brain insult factors,etc.Part B was age and part C was medical history of the patients.The total score of part A,B and C was final score of BISCPM.Results:Altogether 1156 TBI patients were included with 578 cases in each group.The score of BISCPM from validating group ranged from 2.75 to 31.94,averaging 13.64±5.59.There was not statistical difference between observed and predicted mortality for validating group.The discrimination validation showed that the BISCPM is superior to international mission for prognosis and analysis of clinical trials(IMPACT)lab model.Conclusion:BISCPM is an effective model for state evaluation and prognosis prediction of TBI patients.The use of BISCPM could be of great significance for decision-making in management of TBI. | Xia Li Chao Lü Jun Wang Yi Wan Shu-Hui Dai Lei Zhang Xue-An Hu Xiao-Fan Jiang Zhou Fei | 2020 | Chinese Journal of Traumatology2020,23,5: | 3 |
| 9 | Flexible Triboelectric Nanogenerator from Micro-nano Structured Polydimethylsiloxane显示文摘 | XIAO Xinze Lü Chao WANG Gong XU Ying WANG Jiping YANG Hai | 2015 | Chemical Research in Chinese Universities2015,31,3: | 3 |
| 10 | A novel method for improving cerussite sulfidization显示文摘Evaluation of flotation behavior, solution measurements, and surface analyses were performed to investigate the effects of chloride ion addition on the sulfidization of cerussite in this study. Micro-flotation tests indicate that the addition of chloride ions prior to sulfidization can significantly increase the flotation recovery of cerussite, which is attributed to the formation of more lead sulfide species on the mineral surface. Solution measurement results suggest that the addition of chloride ions prior to sulfidization induces the transformation of more sulfide ions from pulp solution onto the mineral surface by the formation of more lead sulfide species. X-ray diffraction and energy-dispersive spectroscopy indicate that more lead sulfide species form on the mineral surface when chloride ions are added prior to sulfidization. These results demonstrate that the addition of chloride ions prior to sulfidization can significantly improve the sulfidization of cerussite, thereby enhancing the flotation performance. | Qi-cheng Feng Shu-ming Wen Wen-juan Zhao Qin-bo Cao Chao Lü | 2016 | International Journal of Minerals,Metallurgy and Materials2016,23,6: | 2 |
| 11 | Adenovirus-mediated delivery of human kallikrein-binding gene reduces blood pressure of spontaneously hypertensive rats显示文摘 | Chen LM Chao L Chao J | 1997 | Human Gene Therapy1997,8,: | 2 |
| 12 | Prolonged reduction of high blood pressure with human nitric oxide synthase gene delivery显示文摘 | Lin KF Chao L Chao J | 1997 | Hypertension1997,30,: | 2 |
| 13 | Human atrial natriuretic peptide gene delivery reduces blood pressure in hypertensive rats显示文摘 | Lin KF Chao J Chao L | 1995 | Hypertension1995,26,: | 2 |
| 14 | Numerical Simulation of Enhanced Oil-Water Separation in a Three-Stage Double-Stirring Extraction Tank显示文摘Numerical simulation of enhanced fluid flow characteristics in a three-stage double-stirring extraction tank was conducted with the coupling of an Eulerian multiphase flow model and a Morsi-Alexander interphase drag force model. Results show that the addition of a stirring device into the settler can efficiently reduce the volume fraction of out-of-phase impurity in the outlet, and accelerate the settling separation of oil-water mixture. Such addition can also effectively break down the oil-water-wrapped liquid droplets coming from the mixer, inhibit reflux from the outlet, and improve the oil-water separation. The addition of a stirring device induces ignorable power consumption compared with that by the mixer, and can thus facilitate the commercialized promotion of this novel equipment. | Lü Chao Zhang Zimu Zhao Qiuyue Wang Shuchan Zhang Ting'an Liu Yan | 2015 | China Petroleum Processing & Petrochemical Technology2015,17,4: | 2 |
| 15 | Observation on the breeding of brown marbled grouper,Epinephelus fuscoguttatus (Forskal)显示文摘 | Lim L C Chao T M Khoo L T | 1990 | Singapore J Prim Ind1990,18,: | 1 |
| 16 | Spontaneous ignition of pressurized releases of hydrogen and natural gas into air 显示文摘 | DRYER F L CHAOS M ZHAO Z W | 2007 | Combustion Science and Technology2007,179,4: | 1 |
| 17 | Juglone, an inhibitor of the peptidyl-prolyl isomerase Pinl ,also directly blocks transcription 显示文摘 | CHAOS H GREENLEAF A L PRICE D H | 2001 | Nucl Acids Res2001,29,3: | 1 |
| 18 | Measurements of the flux densities of static magnetic fields generated by two types of dental magnetic attachments and their retentive forces显示文摘 | Xu C Chao Y L Du L Yang L | 2004 | Sichuan Da Xue Xue Bao Yi Xue Ban2004,35,3: | 1 |
| 19 | A combined method of conventional and endoscopic adenoidectomy 显示文摘 | Huang H M Chao M C Chen Y L | 1998 | Laryngoscope1998,108,7: | 1 |
| 20 | Atrial natriuretic peptide gene delivery attenuates hypertension,cardiac hypertrophy,and renal injury in salt-sensitive rats显示文摘 | Lin KF Chao J Chao L | 1998 | Hurn Gene Ther1998,9,10: | 1 |