维普中文期刊产品整合服务
20508篇 您的检索式:作者名="W F M"
    题名 作者 年代 出处 被引量
1Gastroenteropancreatic neuroendocrine tumours显示文摘Irvin M Modlin Kjell Oberg Daniel C Chung Robert T Jensen Wouter W de Herder Rajesh V Thakker Martyn Caplin Gianfranco Delle Fave Greg A Kaltsas Eric P Krenning Steven F Moss Ola Nilsson Guido Rindi Ramon Salazar Philippe Ruszniewski Anders Sundin 2008Lancet Oncology2008,,1:8
2High-density SNP-based genetic maps for the parents of an outcrossed and a selfed tetraploid garden rose cross, inferred from admixed progeny using the 68k rose SNP array显示文摘Dense genetic maps create a base for QTL analysis of important traits and future implementation of marker-assisted breeding.In tetraploid rose,the existing linkage maps include<300 markers to cover 28 linkage groups(4 homologous sets of 7 chromosomes).Here we used the 68k WagRhSNP Axiom single-nucleotide polymorphism(SNP)array for rose,in combination with SNP dosage calling at the tetraploid level,to genotype offspring from the garden rose cultivar‘Red New Dawn’.The offspring proved to be not from a single bi-parental cross.In rose breeding,crosses with unintended parents occur regularly.We developed a strategy to separate progeny into putative populations,even while one of the parents was unknown,using principle component analysis on pairwise genetic distances based on sets of selected SNP markers that were homozygous,and therefore uninformative for one parent.One of the inferred populations was consistent with self-fertilization of‘Red New Dawn’.Subsequently,linkage maps were generated for a bi-parental and a self-pollinated population with‘Red New Dawn’as the common maternal parent.The densest map,for the selfed parent,had 1929 SNP markers on 25 linkage groups,covering 1765.5 cM at an average marker distance of 0.9 cM.Synteny with the strawberry(Fragaria vesca)genome was extensive.Rose ICM1 corresponded to F.vesca pseudochromosome 7(Fv7),ICM4 to Fv4,ICM5 to Fv3,ICM6 to Fv2 and ICM7 to Fv5.Rose ICM2 corresponded to parts of F.vesca pseudochromosomes 1 and 6,whereas ICM3 is syntenic to the remainder of Fv6.Mirjana Vukosavljev Paul Arens Roeland E Voorrips Wendy P C van't Westende G D Esselink Peter M Bourke Peter Cox W Eric van de Weg Richard G F Visser Chris Maliepaard Marinus J M Smulders 2016Horticulture Research2016,3,1:6
3澳大利亚肉类标准和分级体系显示文摘澳大利亚肉类标准(meat standards Australia,MSA)是一个肉类全面质量管理系统,旨在为消费者提供一个肉类食用品质的准确描述。MSA已经通过对消费者进行大规模的品尝实验,确定了牛肉供应链中影响牛肉可口性的生产、屠宰、加工和价值以及各个生产环节的关键控制点(critical control points,CCPs)评分。这些关键控制点评分通过两种方式管理牛肉的可口性。首先,屠宰加工领域的关键控制点一直作为胴体评分的强制性标准;其次,其他生产和加工领域的关键点控制评分被合并到一个模型当中,用来预测不同个体肌肉和烹饪技巧的可口性。MSA模型可以用来支持新的营销创新。已经有充分的证据表明,消费者愿意为优质牛肉付出高价。目前已出现几个零售的例子采用MSA可口性评分来给牛肉定价。这样胴体价值的计算方法即为每块零售肉质量乘以不同质量评分的价格,并按照零售价的比例支付牛肉生产者。该系统可以用不同的胴体性状相关的经济权重来计算。由于等级是基于持续的质量规模,生产者在这个系统中的质量和产量方面即便小有增加,也会获得相应的经济回报。MSA系统已经支撑了一个新的和创新的营销系统,该系统的定价是透明的,可以帮助生产者对肉品的质量和产量的调整作出明智的决定。MSA系统不仅在澳大利亚有效地用于预测牛肉的可口性,而且在其他国家也都证明了其应用的有效性。在欧洲启动的ProSafeBeef项目也表明,欧洲也可用类似MSA的系统进行肉类的分级。R POLKINGHORNE J M THOMPSON J F HOCQUETTE D W PETHICK 霍云龙 孟庆祥 2015肉类研究2015,29,2:6
4Inducing embryonic stem cells to differentiate into pancreatic beta cells by a novel three-step approach with activin A and all-trans retinoic acid显示文摘Shi Y Hou L Tang F Jiang W Wang P Ding M Deng H 2006中国生物学文摘2006,20,7:4
5轻型结构柴油机用镁机体显示文摘AVL公司在开发轿车发动机用高载荷镁机体时,提出一种带裂解主轴承加强件、但不带镶铝铸件的设计理念以及一种优化镁合金。这种理念的潜力已于2002年在1台增压轻型结构柴油机的台架耐久试验中得到证实。装用镁机体柴油机的样车自2002年10月以来一直在进行道路试验。Schoeffmann W 2008国外内燃机2008,40,1:3
6Kinetics of CO2 with primary and secondary amines in aqueous solutions显示文摘Little R J Versteeg G F Van Swaaij W P M 1992Chem Eng Sci1992,47,:3
7残余应力导致三层聚烯烃管道防腐层剥离与开裂显示文摘这是美国运输部发起的研究项目,一个管道防腐层专家团队参与了本研究项目,评价了三层聚烯烃管道外防腐涂层(3LPO)的完整性。研究表明,三层聚烯烃管道外防腐涂层(3LPO)存在剥离和面层开裂两大完整性问题。过去几年里,据文献报道,三层聚烯烃管道外防腐涂层(3LPO)的熔结环氧粉末(FBE)底漆与钢管界面上发生多起防腐层剥离事故,以及聚丙烯(PP)面层发生开裂事故。这些防腐层事故引起人们对使用三层聚烯烃管道外防腐涂层(3LPO)的关注。一般来讲,三层聚烯烃管道外防腐涂层(3LPO)采用比较厚的聚烯烃面层增强防腐层抗机械损伤和防止水渗透的能力。但是,聚烯烃的热膨胀系数比钢材高得多,结果在防腐层系统里产生比较高的残余热应力。因为残余应力高,造成防腐层剥离,尤其在管端截短防腐层和任何防腐层的边上,因为这些是高应力集中部位。特别是假如钢管表面预处理不当,就无法保证防腐层持久达到很强的粘合强度。如果熔结环氧粉末(FBE)底漆配方选择不当,发生热氧化降解,也导致防腐层过早失效。如果使用温度很高,聚丙烯也会因为热氧化降解而变脆。在残余应力下,这样脆性的聚丙烯面层就会开裂。本文分析了三层聚烯烃管道外防腐涂层(3LPO)中的残余应力,并且探讨了残余应力对三层聚烯烃管道外防腐涂层(3LPO)剥离和聚丙烯(PP)面层开裂机理的影响。B.T.A.Cheng S Hung-jue J Han D Wong A Kehr M Mallozzi F Aguirre H Pham W Snider 王向农(译) 2011防腐保温技术2011,19,3:3
8Fondaparinux预防老年急性内科患者发生静脉血栓形成的效果与安全性:随机安慰剂对照研究显示文摘目的:观察 Fondaparinux 对具有中高度静脉血栓发生危险的老年急性内科住院患者的抗凝效果与安全性。设计:双盲随机安慰剂对照研究。背景:8个国家的35个中心。参与者:849例≥60岁内科患者,住院原因分别为充血性心力衰竭、慢性肺病合并急性呼吸系统疾患、急性炎症性或感染性疾病,预期至少住院4天以上。干预:2.5 mg Fondaparinux 或安慰剂,每天1次皮下注射,持续6~14天。观察指标:主要指标为静脉血栓形成(治疗后15天内采用双侧静脉造影检查)及有症状的静脉血栓;次要指标为死亡与出血。患者随访时间为1个月。结果:Fondaparinux 治疗组425例患者和安慰剂组414例患者接受了安全性分析(10例未治疗)。644例患者(75.9%)可接受主要指标分析。静脉血栓检出率在 Fondaparinux 治疗组为5.6%(18/321),安慰剂组为10.5%(34/323),相对危险减少46.7%(95% CI 7.7%~69.3%)。安慰剂组5例患者发生有症状的静脉血栓,Fondaparinux治疗组无患者发生有症状的静脉血栓(P=0.029)。两组均有1例(0.2%)患者发生严重出血。随访结束时,安慰剂组、Fondaparinux 治疗组分别死亡25(6.0%)、14(3.3%)例患者。结论:Fondaparinux 可有效预防急性内科老年患者无症状性及有症状的静脉血栓。严重出血几率两组相似。Alexander T Cohen Bruce L Davidson Alexander S Gallus Michael R Lassen Martin H Prins Witold Tomkowski Alexander G G Turpie Jan F M Egberts Anthonie W A Lensing 石汉平(译) 王深明(校) 2006英国医学杂志中文版2006,9,5:3
9交联剂1,2-聚丁二烯在三元乙丙橡胶/聚丙烯热塑性硫化胶中的作用(英文)显示文摘研究了交联剂1, 2 -聚丁二烯在三元乙丙橡胶(EPDM) /聚丙烯(PP)热塑性硫化胶(TPV)中的作用。结果表明,在EP DM用量高的TPV中, 1, 2 -聚丁二烯能够提高材料的交联密度;在EPDM用量低的TPV中, 1, 2 -聚丁二烯则起到了增塑剂的作用。随着PP用量的增加,EPDM交联程度对TPV体系性能的影响不再明显。张红梅 De Risi F R Noordermeer J W M 2005合成橡胶工业2005,28,3:3
10一种房颤风险评分系统的建立(Framingham心脏研究):基于社区的队列研究显示文摘背景房颤导致了发病率和病死率的显著上升。本研究旨在建立一种预测个体罹患房颤绝对风险的风险评分系统,并提供研究人员评价新危险因素的流程。方法作者评估了Framingham心脏研究中于1968年6月至1987年9月间进行了8044次检测的4764例参与者(55%为女性,年龄45~95岁)。此后,参与者被随访至房颤首发,随访期最长达10年。多变量Coxi回归确认出1(1年内罹患房颤的临床危险因素。次级分析纳入了常规超声心动图检测指标(5152例4参与者,7156次检测)对房颤风险进行再分层评估,并评价超声检测指标能否提高风险预测能力。结果4764例参与者中的457例4(10%)罹患房颤。年龄、性别、体重指数、收缩压、降压治疗、PR间期、有临床意义的心脏杂音及心力衰竭与房颤相关,并被纳入了风险评分模型(除体重指数P=0.08外,其余均为P〈0.05),模型的C统计量为0.78(95%CI0.76~0.80)。10年房颤风险随年龄变化:年龄〈65岁的人群中53例(1%)风险高于15%,而〉65岁的人群中为783例(27%)。为提高预测能力而纳入超声检测指标仅使模型C统计量略微增高,由0.78(95%C10.75~0.80)增至0.79(95%CI0.77~0.82:P=0.005)。超声心动图检测指标并不能改善风险再分层评估(P=0.18)。结论基于社区医疗中易得的临床因素建立的风险评分系统,有助于确认社区个体罹患房颤的风险,评估技术或标志物能否改善风险预测,以及针对高危个体采取预防措施。Renate B Schnabel Lisa M Sullivan Daniel Levy Michael J Pencina Joseph M Massaro Ralph B D'Agostino Sr Christopher Newton-Cheh Jennifer F Yamamoto Jared W Magnani Thomas M Tadros William B Kannel Thomas J Wang Patrick T Ellinor Philip A Wolf Ramachanclran S Vasan Emelia J Benjamin 黄刚(译) 2009世界临床医学2009,,9:2
11Rapid Isolator of high molecular weight plant DNA显示文摘Murray M G Thompson W F 1980Nucleic Acids Research1980,8,:2
12High gain GaAs potoconductive semiconductor switches for impulse sources显示文摘LOUBREIL G M ZUTAVERN F J O'MALLEY M W 1994SPIE1994,2343,:2
13Analytical solution for pile hammer impact 显示文摘Take W A Valsangkar A J Randolph M F 1999Computers and Geotechnics1999,25,2:2
14查看详情显示文摘Derbyshire F J De Beer V H J Abotsi G M K Scaroni A W, Solar J M, Skrovanek D J 0,,:2
15Hamartoma of CNS associated with precocious puberty显示文摘Zunigz O F Tanner S M Wild W O 1983Am J Dis Child1983,137,2:2
16Synthesis conditions and oxygen stoichiometry effects on Li insertion into LiMn2O4 显示文摘Tarascon J M Mickinnon W R Coowar F 1994J Electrochem Soc1994,141,:2
17Migraine prevalence, disease burden, and the need for preventive therapy显示文摘R B. Lipton M E. Bigal M Diamond F Freitag M L. Reed W F. Stewart 2007Neurology2007,,5:2
18Ice-free cryopreservation of mouse embryos at -196 ℃ by vitrification显示文摘Rall W F Fahy G M 1985Nature1985,313,:2
19Effect of daily aspirin on risk of cancer metastasis: a study of incident cancers during randomised controlled trials显示文摘Peter M Rothwell Michelle Wilson Jacqueline F Price Jill FF Belch Tom W Meade Ziyah Mehta 2012The Lancet . 2012 (9826)2012,,:2
20Novel design concepts for network intrusion systems based on dendritic cells processes显示文摘An abstraction and an investigation to the worth of dendritic cells (DCs) ability to collect, process and present antigens are presented. Computationally, this ability is shown to provide a feature reduction mechanism that could be used to reduce the complexity of a search space, a mechanism for development of highly specialized detector sets as well as a selective mechanism used in directing subsets of detectors to be activated when certain danger signals are present. It is shown that DCs, primed by different danger signals, provide a basis for different anomaly detection pathways. Different antigen-peptides are developed based on different danger signals present, and these peptides are presented to different adaptive layer detectors that correspond to the given danger signal. Experiments are then undertaken that compare current approaches, where a full antigen structure and the whole repertoire of detectors are used, with the proposed approach. Experiment results indicate that such an approach is feasible and can help reduce the complexity of the problem by significant levels. It also improves the efficiency of the system, given that only a subset of detectors are involved during the detection process. Having several different sets of detectors increases the robustness of the resulting system. Detectors developed based on peptides are also highly discriminative, which reduces the false positives rates, making the approach feasible for a real time environment.RICHARD M R 谭冠政 ONGALO P N F CHERUIYOT W 2013Journal of Central South University2013,20,8:2
返回顶部 每页显示:
共1026页 首页 上一页 第1页 下一页 末页 /1026 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