维普中文期刊产品整合服务
7313篇 您的检索式:作者名="C D O"
    题名 作者 年代 出处 被引量
1OPTICAL PROPERTIES OF GeO_2 AND Ge NANOCRYSTALS显示文摘he co m pound m aterial of n m size particles Ge O2 Si O2 w as synthesied through hydrolysis of Si( O C2 H4) and Ge Cl4 . A heat treatm ent w as carried out for the sa m ples at 100 ~1200 ℃in air . Its optical property w as deter mined by U V Vis spectur m . We have found that theabsorption edge of spectru m shifted progressively to longer w avelengths . The quantu m size ef fect of nanocrystals appears because crystals gro w and energy of optical band gap reduces d ueto the influence of te m perature . By the analysis of X ray diffraction w e have observed theprocess in w hich the structure of particles changed fro m disorder into order .Y.H.Zhou 1) ,Y.Y.Feng 2) and H.Y.Lu 2) 1)Department of Physics Nanjing Normal University, Nanjing 210097,China 2)Physics and Ch寁O P T I C A L P R O P E R T I E S O F Ge O2 A N D Ge N A N O C R Y S T A L S Y. H. Zhou1) , Y. Y. Feng2) 1999Acta Metallurgica Sinica(English Letters)1999,12,5:22
2血管性认知障碍的诊断标准:国际血管性行为与认知障碍学会的申明显示文摘长期以来,脑血管病(CVD)就被认为是认知损害的一个重要原因,但是有关脑血管病后认知障碍的概念化却有着一段多变的历史。'动脉变硬'或脑的动脉粥样硬化是'老化'的原因,是存在已久的观点,在20世纪60年代受到了来自英格兰纽卡斯尔的神经病理学研究的质疑。这些研究表明,血管性痴呆(vascular dementia,Va D)与超过一定程度的多发性脑梗死有关。徐岩 郭起浩 Sachdev P Kalaria R O'Brien J Skoog I Alladi S Black SE Blacker D Blazer DG Chen C Chui H Ganguli M Jellinger K Jeste DV Pasquier F Paulsen J Prins N Rockwood K Roman G Scheltens P 2014神经病学与神经康复学杂志2014,11,3:19
3幽门螺杆菌感染处理的当前观念——MaastrichtⅢ共识报告显示文摘名词缩写欧洲幽门螺杆菌研究小组:European Helicobacter Study Group,EHSG胃食管反流病:gastro-esophageal reflux disease。P Malfertheiner F Megraud C O'Morain F Bazzoli E El-Omar D Graham R Hunt T Rokkas N Vakil EJ Kuipers 朱琦 2007胃肠病学2007,12,3:15
4Immunoexpression of cyclooxygenase-2 in primary gastric carcinomas and lymph node metastases显示文摘AIM: To evaluate immunoexpression of cyclooxygenase-2 (COX-2) in primary gastric carcinomas and respective lymph node metastases. METHODS: Immunohistochemistry to analyze COX-2 expression was performed on tissue microarray slices obtained from 36 specimens of gastrectomy and satellite lymph nodes from patients with gastric carcinoma. RESULTS: Immunostaining was seen in most cases, and COX-2 expression was higher in lymph node me-tastases than in corresponding primary gastric tumors of intestinal, diffuse and mixed carcinomas, with a statistically signif icant difference in the diffuse histotype (P = 0.0108). CONCLUSION: COX-2 immunoexpression occurs frequently in primary gastric carcinomas, but higher expression of this enzyme is observed in lymph node metastases of the diffuse histotype.Paulo RC Almeida Francisco VA Ferreira Cássio C Santos Francisco D Rocha-Filho Raul RP Feitosa Esther AA Falco Belise K Cavada Roberto CP Lima-Júnior Ronaldo A Ribeiro 2012World Journal of Gastroenterology2012,18,8:14
5The significance of clinical practice guidelines on adult varicocele detection and management显示文摘精索静脉曲张是男因素不孕的最普通的可改正的病原学。然而,精索静脉曲张的察觉和管理没被标准化。这在男不孕上关于精索静脉曲张的效果导致了争论的十年,随后,是否修理,导致改进富饶地位。调查精索静脉曲张和 varicocelectomy 的角色的证据的当前的身体弱、冲突。AUA 和 ASRM 拿的位置建议有不够的结果数据支持基于证据的指南,引用过去常提供建议通常具有低优秀水平的电流的证据。在另一方面, EAU 指南为临床上摸得出的精索静脉曲张的管理给水平证据的 1a,与低于正常的精液分析和有的不同 unexplained 富饶联系了。除与临床的精索静脉曲张察觉和管理帮助以外,临床的实践意见陈述和指南试图指导并且加强未来研究的基础结构。我们在实践与他们的申请的焦点在精索静脉曲张和管理察觉考察意见陈述和指南的当前的地位。Anand Shridharani Ryan C Owen Osama O Elkelany Edward D Kim 2016Asian Journal of Andrology2016,18,2:11
6Passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts and assessment of clinical outcomes显示文摘AIM To assess for passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts(TIPS) and compare outcomes with maximally dilated TIPS.METHODS Polytetrafluoroethylene covered TIPS(Viatorr) from July 2002 to December 2013 were retrospectively reviewed at two hospitals in a single institution. Two hundred and thirty patients had TIPS maximally dilated to 10 mm(m TIPS), while 43 patients who were at increased risk for hepatic encephalopathy(HE), based on clinical evaluation or low pre-TIPS portosystemic gradient(PSG), had 10 mm TIPS sub-maximally dilated to 8 mm(sm TIPS). Group characteristics(age, gender, Model for End-Stage Liver Disease score, post-TIPS PSG and clinical outcomes were compared between groups, including clinical success(ascites or varices), primary patency,primary assisted patency, and severe post-TIPS HE. A subset of fourteen patients with sm TIPS underwent follow-up computed tomography imaging after TIPS creation, and were grouped based on time of imaging(< 6 mo and > 6 mo). Change in diameter and crosssectional area were measured with 3D imaging software to evaluate for passive expansion.RESULTS Patient characteristics were similar between the sm TIPS and m TIPS groups, except for pre-TIPS portosystemic gradient, which was lower in the sm TIPS group(19.4 mm Hg ± 6.8 vs 22.4 mm Hg ± 7.1, P = 0.01). Primary patency and primary assisted patency between sm TIPS and m TIPS was not significantly different(P = 0.64 and 0.55, respectively). Four of the 55 patients(7%) with sm TIPS required TIPS reduction for severe refractory HE, while this occurred in 6 of the 218 patients(3%) with m TIPS(P = 0.12). For the 14 patients with follow-up computed tomography(CT) imaging, the median imaging follow-up was 373 d. There was an increase in median TIPS diameter, median percent diameter change, median area, and median percent area change in patients with CT follow-up greater than 6 mo after TIPS placement compared to follow-up within 6 mo(8.45 mm, 5.58%, 56.04 mm^2, and 11.48%, respectively, P = 0.01).CONCLUSION Passive expansion of sm TIPS does occur but clinical outcomes of sm TIPS and m TIPS were similar. Sub-maximal dilation can prevent complications related to overshunting in select patients.Michael C Hsu Charles N Weber S William Stavropoulos Timothy W Clark Scott O Trerotola Richard D Shlansky Goldberg Michael C Soulen Gregory J Nadolski 2017World Journal of Hepatology2017,9,12:11
7非诺贝特治疗与2型糖尿病患者长期心血管病风险的关系显示文摘2型糖尿病患者心血管病风险高,部分原因在于高三酰甘油和低高密度脂蛋白胆固醇血症。而在他汀类药物治疗基础上,加强降低三酰甘油治疗,能否降低这种风险尚不清楚。该研究的目的是在使用他汀类药物治疗的2型糖尿病患者中,确定非诺贝特能否降低心血管病风险。刘莉 叶鹏 Elam MB Ginsberg HN Lovato LC Corson M Largay J Leiter LA Lopez C O'Connor PJ Sweeney ME Weiss D Friedewald WT Buse JB Gerstein HC Probstfield J Grimm R Ismail-Beigi F Goff DC Jr Fleg JL Rosenberg Y Byington RP ACCORDION study investigators 2017中华高血压杂志2017,25,6:7
8新鲜冰冻血浆、冷沉淀和冷上清使用指南显示文摘摘要 FFP、冷沉淀和冷上清的临床适应症(见第10节) 单一凝血因子缺乏(10.1)Duguid J O'Shaughnessy D F Atterbury C 洪缨 2004国外医学(输血及血液学分册)2004,27,5:6
9巨峰和无核早红葡萄在越南谅山试种观察显示文摘[目的]观察巨峰、无核早红葡萄在越南谅山省的引种表现,为其在越南推广种植提供参考依据.[方法]2009年春从中国南宁引入巨峰、无核早红两个鲜食葡萄品种在越南谅山省试种,调查其枝蔓生长量、物候期、果实性状、产量等相关指标.[结果]至第1年抚育冬季,巨峰葡萄枝蔓总长234.5 cm,上架茎粗0.84 cm;无核早红葡萄枝蔓总长294.1 cm,上架茎粗0.86 cm.在物候期方面,巨峰葡萄从萌芽至果实成熟需141~151 d,表现中熟;无核早红从萌芽至果实成熟需142~151 d,未表现其应有的早熟特性.在果实性状方面,巨峰葡萄2010~2012年3年平均单果重8.9 g,种子数1.04粒,可溶性固形物(TSS)含量17.5%;无核早红葡萄2010~2012年3年平均单果重6.8 g,TSS含量13.9%.在产量方面,巨峰葡萄2010~2012年产量分别为13.69、17.50和16.24 t/ha;无核早红葡萄2010~2012年产量分别为10.81、16.02和20.92t/ha.[结论]巨峰葡萄在越南谅山省种植表现丰产稳产优质,具有较好的适栽性,可大面积推广种植;无核早红葡萄表现丰产稳产,但表现低糖低酸,极易裂果,着色困难,不宜在越南大面积发展.黄江流 PHAM Thi Thang 罗瑞鸿 NGUYN Thi Hà 吕荣华 LUONG Dǎng Ning CHU Vǎn DUòng NGUYN Manh Tòng 彭宏祥 Ly Ming Nguyet LU'O'NG i Thuy CHU Xun Tien VI Vǎn Dúc NGUYN Duy Dng Ly Dúc Khiêm 熊俏 2014南方农业学报2014,45,7:5
10腔内介入治疗血管性勃起功能障碍显示文摘过去一个世纪里,勃起功能障碍(ED)的治疗一直是一件引人关注的事情,涉及到泌尿、心血管以及手术领域的多个学科。随着ED与心血管疾病的相关性被充分证实,血管造影技术已被用来鉴别血管性阳痿。由于腔内血管药物洗脱支架植入术在治疗冠状动脉疾病获得成功,采用该技术来治疗血管性ED已激起了医务人员的浓厚兴趣。最近报道了针对阴茎流入血管狭窄的男性,植入药物洗脱支架绕过病变处动脉已获得了较高的成功率。同样,血管内栓塞治疗静脉闭塞功能障碍也取得了惊人的手术成功率。然而,查阅文献发现动脉介入只推荐应用于治疗年轻的孤立性血管损伤的患者,通常为那些先前经历过创伤的患者。该手术的短期功能恢复没有达到最佳,长期疗效也有待进一步观察。总之,用微创方法治疗勃起功能障碍的希望仍然存在,但是在获得普遍认可之前仍需要进一步的研究。Edward D Kim Ryan C Owen Gregory S White Osama O Elkelany Cyrus D Rahnema 2015Asian Journal of Andrology2015,17,1:3
11日粮中添加氨基酸降低粗蛋白含量对6~15kg仔猪生产性能的影响显示文摘为评价添加氨基酸降低粗蛋白(CP)含量对6~15 kg仔猪的影响,共设计两个试验。在性能试验中(试验Ⅰ),21日龄、初始体重为5.95±0.33 kg的断奶仔猪120头被分成5组。试验为完全随机区组试验设计,共8个重复,每个重复3只猪。在5个处理组中,CP含量由21.0%降低到15.0%(分别为21.0%,19.5%,18.0%,16.5%和15.0%),通过添加L-赖氨酸、DL-蛋氨酸、L-苏氨酸、L-色氨酸、L-缬氨酸和L-异亮氨酸来满足日粮中氨基酸的需求。各处理间生产性能无显著差异。因此,以上蛋白质的任何水平都能被有效的合成氨基酸。降低蛋白质的含量可以增加必需氨基酸和非必需氨基酸的比值,且蛋白质含量为15%时比值最佳(5347)。随着蛋白质含量的降低,尿素含量线性下降(试验Ⅰ)。为评估氮平衡(试验Ⅱ),21日龄的杂交阉割商品仔猪20只被随机分成5组,仔猪的平均活重为10.79±2.19kg。5个处理组的所有动物安置在铁笼中,每个处理4个重复,每个重复1只猪。结果血液和尿液中尿素含量随蛋白质含量的减少线性降低(P〈0.05),进而减少了动物向环境中的氮排泄。Toledo J B Furlan A C Pozza P C Pianob L M Carvalho P L O Peuela-Sierra L M Huepa L M D 2014饲料博览2014,0,11:3
12A LED-based smart illumination system for studying plant growth显示文摘Olvera-Gonzalez E Alaniz-Lumbreras D Torres-Arg?elles V Gonz?lez-Ram?rez E Villa-Hern?ndez J Araiza-Esquivel M Ivanov-Tsonchev R Olvera-Olvera C Casta?o VM 2014Lighting Research and Technology2014,,2:2
13用心脏的磁性的回声成像部分 1: 的心肌症的调查普通显型显示文摘 Cardiac magnetic resonance imaging(CMRI) has emerged as a useful tertiary imaging tool in the investigation of patients suspected of many different types of cardiomyopathies,CMRI sequences are now of a sufficiently robust quality to enable high spatial and temporal resolution image acquisition.This has led to CMRI becoming an effective non-invasive imaging gold standard for many cardiomyopathies.In this 2-part review,we outline the typical sequences used to image cardiomyopathy,and present the imaging spectrum of cardiomyopathy.Part 1 focuses on the current classification of cardiomyopathy,basic CMRI sequences used in evaluating cardiomyopathy and the imaging spectrum of common phenotypes.Shaunagh McDermott Ailbhe C O’Neill Carole A Ridge Jonathan D Dodd 2012World Journal of Cardiology2012,4,4:2
14Effect of long-term oral administration of β-glucan as an immunostimulant or an adjuvant on some non-pecific parameters of the immune response of turbot Scophthalmus maximus显示文摘Banlny M O D Quentel C Fournier V Diseases of Aquatic Organisms0,1,:2
15Uncondi-tionally stable staggered solution procedure for soil-pore fluid interaction problems显示文摘Zienkiewicz O C Paul D K Chan A H 1988Int J for Numerical Methods in Engineering1988,26,:2
16卒中介入治疗培训指南:国际多学会共识文件显示文摘1背景 缺血性卒中是全球人口死亡和残疾的首要原因。很多急性大血管闭塞(emergent large vesselocclusion,ELVO)患者都会遗留长期残疾。事实上,这些颅内大动脉闭塞经常会导致大面积脑损伤,进而造成患者死亡或严重致残。Lavine SD Cockroft K Hoh B Bambakidis N Khalessi AA Woo H Riina H Siddiqui A Hirsch JA Chong W Rice H Wenderoth J Mitchell P Coulthard A Signh TJ Phatorous C Khangure M Klurfan P ter Brugge K Iancu D Gunnarsson T Pongpech S Rodesch G Soderman M Taylor A Krings T Orbach D Picard L Suh DC Zheng HQ Jansen O Muto M Szikora I Pierot L Brouwer P Gralla J Renowden S Andersson T Fiehler J Turjman F White P Januel AC Spelle L Kulcsar Z Chapot R Biondi A Dima S Taschner C Szajner M Krajina A Sakai N Matsumaru Y Yoshknura S Ezura M Fujinaka T Iihara K Ishii A Higashi T Hirohata M Hyodo A Ito Y Kawanishi M Kiyosue H Kobayashi E Kobayashi S Kuwayama N Matsumoto Y Miyachi S Murayama Y Nagata I Nakahara I Nemoto S Niimi Y Oishi H Satomi J Satow T Sugiu K Tanaka M Terada T Yamagami H Diaz O Lylyk P Jayaraman MV Patsalides A Gandhi CD Lee SK Abruzzo T Albani B Ansari SA Arthur AS Baxter BW Bulsara KR Chen M Almandoz JE Fraser JF Heck DV Hetts SW Hussain MS Klucznik RP Leslie-Mawzi TM Mack WJ McTaggart RA Meyers PM Mocco J Prestigiacomo CA Pride GL Rasmussen PA Starke RM Sunenshine PJ Tarr RW Frei DF Pabo M Nogueira RG Zaidat OO Jovin T Linfante I Yavagal D Liebeskind D Novakovic R Pongpech S 许岩 孙瑞 郭芮兵 2017国际脑血管病杂志2017,25,5:2
17显示文摘Johnson L L Johnson W C O'Brein D L 1961Chemical Engineering Progress Symposium Section1961,35,:2
18Hepatocellular hypoxia-induced vascular endothelial growth factor expression and angiogenesis in experimental biliary cirrhosis 显示文摘Rosmorduc O Wendum D Corpechot C 1999Am J Pathol1999,155,4:2
19Diagnosis of renal vascular disease with MR angiography显示文摘QIAN D O N G STEFAN O S Ruth C C 1999Radiographics1999,19,6:2
20NEW TOXOPLASMA GONDII GENOTYPES ISOLATED FROM FREE-RANGE CHICKENS FROM THE FERNANDO DE NORONHA, BRAZIL: UNEXPECTED FINDINGS显示文摘Dubey J P Rajendran C Costa D G C Ferreira L R Kwok O C H Qu D Su C Marvulo M F V Alves L C Mota R A Silva J C R 2010The Journal of Parasitology2010,,4:2
返回顶部 每页显示:
共366页 首页 上一页 第1页 下一页 末页 /366 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