维普中文期刊产品整合服务
337篇 您的检索式:作者名="Reginald"
    题名 作者 年代 出处 被引量
1pH-dependent leaching behaviour and other performance properties of cement-treated mixed contaminated soil显示文摘Portland cement has been widely used for stabilisation/solidification(S/S) treatment of contaminated soils.However,there is a dearth of literature on pH-dependent leaching of contaminants from cement-treated soils.This study investigates the leachability of Cu,Pb,Ni,Zn and total petroleum hydrocarbons(TPH) from a mixed contaminated soil.A sandy soil was spiked with 3000 mg/kg each of Cd,Cu,Pb,Ni and Zn,and 10,000 mg/kg of diesel,and treated with ordinary Portland cement(CEM I).Four different binder dosages,5%,10%,15% and 20%(m/m) and different water contents ranging from 13%-19% dry weight were used in order to find a safe operating envelope for the treatment process.The pH-dependent leaching behaviour of the treated soil was monitored over an 84-day period using a 3-point acid neutralisation capacity(ANC) test.The monolithic leaching test was also conducted.Geotechnical properties such as unconfined compressive strength(UCS),hydraulic conductivity and porosity were assessed over time.The treated soils recorded lower leachate concentrations of Ni and Zn compared to the untreated soil at the same pH depending on binder dosage.The binder had problems with Pb stabilisation and TPH leachability was independent of pH and binder dosage.The hydraulic conductivity of the mixes was generally of the order,10-8 m/sec,while the porosity ranged from 26%-44%.The results of selected performance properties are compared with regulatory limits and the range of operating variables that lead to acceptable performance described.Reginald B. Kogbara Abir Al-Tabbaa Yaolin Yi Julia A. Stegemann 2012Journal of Environmental Sciences2012,24,9:8
2术中二维相干光断层扫描作为前节手术的一个新工具显示文摘我们测试了1310nm相干光断层扫描仪与手术显微镜前部镜头的分光镜连接后对前节手术过程中术中的非接触性成像。这项对相干光断层成像技术的新改进可完成前节手术术中角膜、巩膜的高分辨率横断面的成像与厚度测量。其在板层切开技术如深层前板层角膜移植术和小梁切除术中尤为有用。Gerd Geerling Maya Müller Christian Winter Hans Hoerauf Stefan Oelckers Horst Laqua Reginald Birngruber 李晓宁(译) 任泽钦(校) 2005美国医学会眼科杂志(中文版)2005,17,4:7
3PAHs in the Fraser River basin: a critical appraisal of PAH ratios as indicators of PAH source and composition显示文摘Mark B Yunker Robie W Macdonald Roxanne Vingarzan Reginald H Mitchell Darcy Goyette Stephanie Sylvestre 2002Organic Geochemistry2002,,4:5
4Role for urinary biomarkers in diagnosis of acute rejection in the transplanted kidney显示文摘Despite the introduction of potent immunosuppressive medications within recent decades, acute rejection still accounts for up to 12% of all graft losses, and is generally associated with an increased risk of late graft failure. Current detection of acute rejection relies on frequent monitoring of the serum creatinine followed by a diagnostic renal biopsy. This strategy is flawed since an alteration in the serum creatinine is a late clinical event and significant irreversible histologic damage has often already occurred. Furthermore, biopsies are invasive procedures that carry their own inherent risk. The discovery of non-invasive urinary biomarkers to help diagnose acute rejection has been the subject of a significant amount of investigation. We review the literature on urinary biomarkers here, focusing on specific markers perforin and granzyme B m RNAs, FOXP3 m RNA, CXCL9/CXCL10 and mi RNAs. These and other biomarkers are not yet widely used in clinical settings, but our review of the literature suggests that biomarkers may correlate with biopsy findings and provide an important early indicator of rejection, allowing more rapid treatment and better graft survival.Basma Merhi George Bayliss Reginald Y Gohh 2015World Journal of Transplantation2015,5,4:4
5铰接点纵向间距对铰接跨破坏状态的影响分析显示文摘为了探索铰接位置的纵向间距对桥梁铰接跨破坏状态的影响,本文采用地震工程分析软件OpenSees对美国加州Yuba桥的铰接梁跨建立纤维单元模型,对细化模型和简化模型进行Pushover分析,并且对铰接点两侧主梁的不同纵向间距进行对比研究,结果表明:细化模型能更准确地模拟铰接位置的纵向碰撞;铰接点两侧主梁的纵向间距对结构的碰撞过程、结构的屈服过程有很大的影响;较小的纵向间距有利于延长墩梁固结处主梁的线性工作状态,当此梁段发生屈服破坏时,较小的纵向间距还能有效抑制屈服后主梁刚度下降的速率。孙全胜 吴桐 Walter Yang Reginald DesRoches 2013土木工程与管理学报2013,30,4:4
6基于OpenSees对美国加州Yuba桥铰接跨破坏状态分析显示文摘为了研究大跨径桥梁铰接跨的复杂破坏状态,应用地震工程分析软件OpenSees,对美国加州Yuba桥铰接梁跨的三维纤维单元模型进行了分析。探讨了简化模型和细分模型对铰接构造模拟的可行性;并且通过Pushover逐级增加控制位移研究了铰接梁跨各构件的屈服破坏过程;同时得到:铰接位置某个限位装置发生破坏时,其为铰接点提供的相应刚度随之丧失,即使主梁根部尚未发生塑性破坏,其弯矩与曲率之比也会随之发生变化。吴桐 Walter Yang 孙全胜 Reginald DesRoches 2013世界地震工程2013,29,4:4
716-Year Trends in the Infection Burden for Pacemakers and Implantable Cardioverter-Defibrillators in the United States显示文摘Arnold J. Greenspon Jasmine D. Patel Edmund Lau Jorge A. Ochoa Daniel R. Frisch Reginald T. Ho Behzad B. Pavri Steven M. Kurtz 2011Journal of the American College of Cardiology2011,,10:3
8MicroRNA profile in neosquamous esophageal mucosa following ablation of Barrett's esophagus显示文摘AIM To investigate the micro RNA expression profile in esophageal neosquamous epithelium from patients who had undergone ablation of Barrett's esophagus.METHODS High throughput screening using Taq Man~ Array Human Micro RNA quantitative PCR was used to determine expression levels of 754 micro RNAs in distal esophageal mucosa(1 cm above the gastro-esophageal junction) from 16 patients who had undergone ablation of non-dysplastic Barrett's esophagus using argon plasma coagulation vs pretreatment mucosa, posttreatment proximal normal non-treated esophageal mucosa, and esophageal mucosal biopsies from 10 controls without Barrett's esophagus. Biopsies of squamous mucosa were also taken from 5 cm above the pre-ablation squamo-columnar junction. Predicted m RNA target pathway analysis was used to investigate the functional involvement of differentially expressed micro RNAs.RESULTS Forty-four micro RNAs were differentially expressed between control squamous mucosa vs post-ablation neosquamous mucosa. Nineteen micro RNAs were differentially expressed between post-ablation neosquamous and post-ablation squamous mucosa obtained from the more proximal non-treated esophageal segment. Twelve microRNAs were differentially expressed in both neosquamous vs matched proximal squamous mucosa and neosquamous vs squamous mucosa from healthy patients. Nine micro RNAs(mi R-424-5p, mi R-127-3p, mi R-98-5p, mi R-187-3p, mi R-495-3p, mi R-34c-5p, mi R-223-5p, mi R-539-5p, mi R-376a-3p, mi R-409-3p) were expressed at higher levels in post-ablation neosquamous mucosa than in matched proximal squamous and healthy squamous mucosa. These micro RNAs were also more highly expressed in Barrett's esophagus mucosa than matched proximal squamous and squamous mucosa from controls. Target prediction and pathway analysis suggests that these micro RNAs may be involved in the regulation of cell survival signalling pathways. Three micro RNAs(mi R-187-3p, mi R-135b-5p and mi R-31-5p) were expressed at higher levels in postablation neosquamous mucosa than in matched proximal squamous and healthy squamous mucosa. These mi RNAs were expressed at similar levels in preablation Barrett's esophagus mucosa, matched proximal squamous and squamous mucosa from controls. Target prediction and pathway analysis suggests that these micro RNAs may be involved in regulating the expression of proteins that contribute to barrier function.CONCLUSION Neosquamous mucosa arising after ablation of Barrett's esophagus expresses micro RNAs that may contribute to decreased barrier function and micro RNAs that may be involved in the regulation of survival signaling pathways.Loveena Sreedharan George C Mayne David I Watson Timothy Bright Reginald V Lord Alfiya Ansar Tingting Wang Jakob Kist David StJ Astill Damian J Hussey 2017World Journal of Gastroenterology2017,23,30:3
9Clinical practice guideline: Benign paroxysmal positional vertigo显示文摘Neil Bhattacharyya Reginald F. Baugh Laura Orvidas David Barrs Leo J. Bronston Stephen Cass Ara A. Chalian Alan L. Desmond Jerry M. Earll Terry D. Fife Drew C. Fuller James O. Judge Nancy R. Mann Richard M. Rosenfeld Linda T. Schuring Robert W.P. Steiner 2008Otolaryngology - Head and Neck Surgery2008,,5:3
10Implications of seismic pounding on the longitudinal response of multi-span bridges-an analytical perspective显示文摘Seismic pounding between adjacent frames in multiple-frame bridges and girder ends in multi-span simply supported bridges has been commonly observed in several recent earthquakes. The consequences of pounding include damage to piers, abutments, shear keys, bearings and restrainers, and possible collapse of deck spans. This paper investigates pounding in bridges from an analytical perspective. A simplified nonlinear model of a multiple-frame bridge is developed including the effects of inelastic frame action and nonlinear hinge behavior, to study the seismic response to longitudinal ground motion. Pounding is implemented using the contact force-based Kelvin model, as well as the momentum-based stereomechanical approach, Parameter studies are conducted to determine the effects of frame period ratio, column hysteretic behavior, energy dissipation during impact and near source ground motions on the pounding response of the bridge. The results indicate that pounding is most critical for highly out-of-phase frames and is not significant for frame period ratios greater than 0.7. Impact models without energy dissipation overestimate the displacement and acceleration amplifications due to impact, especially for elastic behavior of the frames. Representation of stiffness degradation in bridge columns is essential in capturing the accurate response of pounding frames subjected to far field ground motion. Finally, it is shown that strength degradation and pounding can result in significant damage to the stiffer frames of the bridge when subjected to large acceleration pulses from near field ground motion records.Reginald DesRoches Susendar Muthukumar 2004Earthquake Engineering and Engineering Vibration2004,3,1:3
11Seismic fragility of typical bridges in moderate seismic zones显示文摘Eunsoo Choi Reginald DesRoches Bryant Nielson 2003Engineering Structures2003,,2:3
12Efficacy of Transoral Fundoplication vs Omeprazole for Treatment of Regurgitation in a Randomized Controlled Trial显示文摘John G. Hunter Peter J. Kahrilas Reginald C.W. Bell Erik B. Wilson Karim S. Trad James P. Dolan Kyle A. Perry Brant K. Oelschlager Nathaniel J. Soper Brad E. Snyder Miguel A. Burch William Scott Melvin Kevin Reavis Daniel G. Turgeon Eric S. Hungness Brian 2014Gastroenterology2014,,:2
13Overexpression of fibrinogen-like protein 2 protects against T cell-induced colitis显示文摘AIM To determine the effect of overexpression of fibrinogenlike protein 2(FGL2) on regulatory T cell(Treg) and effector T(Teff) cell function on T cell-induced colitis in Rag1-/-mice.METHODS Treg and Teff cells from fgl2-/-, fgl2+/+, and fgl2 Tg mice were purified by FACS. They were studied in vitro for immunosuppressive activity and cell proliferation and in vivo for their effects on the development and prevention of T cell-induced colitis in Rag1-/-mice. RESULTS In vitro, fgl2 Tg Treg had enhanced immunosuppressive activity, and fgl2 Tg Teff had reduced proliferation to alloantigen stimulation. Transfer of Teff from C57Bl/6J mice(fgl2+/+) into Rag1-/-mice produced both clinical and histologic colitis with dense infiltrates of CD3+ T cells, crypt abscesses and loss of goblet cells. Fgl2 Tg Treg prevented the development of T cell-induced colitis, whereas fgl2+/+ and fgl2-/-Treg were only partially protective. In mice that received fgl2 Tg Treg, the ratio of Foxp3+ to CD3+ cells was increased both in the colon and in mesenteric lymph nodes, and Teff cell proliferation as determined by staining with Ki67 was reduced. Teff cells from fgl2 Tg mice did not produce colitis. CONCLUSION Here we show that fgl2 Tg Teff are hypoproliferative and do not induce colitis. We further demonstrate that fgl2 Tg Treg prevent colitis in contrast to fgl2+/+ Treg, which were only partially protective. These studies collectively provide a rationale for exploring the use of FGL2 or Treg expressing high levels of FGL2 in the treatment of inflammatory bowel disease.Agata Bartczak Jianhua Zhang Oyedele Adeyi Achiya Amir David Grant Reginald Gorczynski Nazia Selzner Andrzej Chruscinski Gary A Levy 2017World Journal of Gastroenterology2017,23,15:2
14成都现金物流服务中心战略选址探析显示文摘以成都市为案例,应用供应链管理的知识与笔者的前期工作,对在一个地区设置现金物流服务中心与对该中心进行战略选址的问题进行了探析。朱南 王龙 Reginald D.Smith 2009物流技术2009,28,7:2
15Influence of lysosomal sequestration on multidrug resistance in cancer cells显示文摘Chemotherapy remains a primary treatment modality for various malignancies.However,resistance to chemotherapeutic drugs is a major obstacle to curative cancer therapy.Lysosomes are acidic organelles that participate in cellular digestion.However,there is rising interest in lysosomes because of their involvement with cancer.For example,extracellular secretion of lysosomal enzymes promote tumorigenesis;cytosolic leakage of lysosomal hydrolases promote apoptosis;and weak chemotherapeutic bases diffuse across the lysosomal membrane and become entrapped in lysosomes in their cationic state.Lysosomal drug sequestration lowers the cytotoxic potential of chemotherapeutics,reduces drug availability to sites of action,and contributes to cancer resistance.This review examines various mechanisms of lysosomal drug sequestration and their consequences on cancer multidrug resistance.Strategies for overcoming drug resistance by exploiting lysosomes as subcellular targets to reverse drug sequestration and drug resistance are also discussed.Reginald Halaby 2019Cancer Drug Resistance2019,2,1:2
16A Prospective Multicenter Registry of Patients with Chronic Gastroesophageal Reflux Disease Receiving Transoral Incisionless Fundoplication显示文摘Reginald C.W. Bell Peter G. Mavrelis William E. Barnes David Dargis Bart J. Carter Kevin M. Hoddinott Robert W. Sewell Karim S. Trad Brian DaCosta Gill Glenn M. Ihde 2012Journal of the American College of Surgeons2012,,6:2
17Vascular endothelial growth factor and basic fibroblast growth factor expression in esophageal adenocarcinoma and Barrett esophagus显示文摘Reginald V.N. Lord Ji Min Park Kumari Wickramasinghe Steven R. DeMeester Stefan Oberg Dennis Salonga Jon Singer Jeffrey H. Peters Kathleen D. Danenberg Tom R. DeMeester Peter V. Danenberg 2003The Journal of Thoracic and Cardiovascular Surgery2003,,2:2
18A review of the mechanical and leaching performance of stabilized/ solidified contaminated soils 显示文摘Reginald B Kogbara 2014Environmental Reviews2014,22,1:1
19Behavioral geography and the theoretical/ quantitative revolution显示文摘Reginald G Golledge 2008Geographical Analysis2008,,40:1
20Racial identity, African self- conscious- hess, and career decision making in African American college women显示文摘Carla J Reginald J 1998Journal of M- ulticuhural Counseling and Devel- opment1998,,1:1
返回顶部 每页显示:
共17页 首页 上一页 第1页 下一页 末页 /17 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费