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    题名 作者 年代 出处 被引量
12019新型冠状病毒基因组特征和流行病学:病毒起源和受体结合的意义显示文摘研究者对来自9例新型冠状病毒肺炎住院患者的支气管肺泡灌洗液样本和培养的分离株进行了下一代测序。从这些个体中获得了严重急性呼吸综合征-冠状病毒2(severe acute respiratory syndrome-coronavirus 2,SARS-CoV-2)的完整和部分基因组序列。利用Sanger测序连接病毒重叠群以获得全长基因组,cDNA末端快速扩增确定终端区。对这些SARSCoV-2基因组和其他冠状病毒基因组进行了系统进化分析,以确定该病毒的进化史并有助于推断其可能的起源。刘青(译) 刘莉(审校) Lu R Zhao X Li J Niu P Yang B Wu H Wang W Song H Huang B Zhu N Bi Y Ma X Zhan F Wang L Hu T Zhou H Hu Z Zhou W Zhao L Chen J Meng Y Wang J Lin Y Yuan J Xie Z Ma J Liu WJ Wang D Xu W Holmes EC Gao GF Wu G Chen W Shi W Tan W 2020中华高血压杂志2020,28,3:516
2全颗粒饲料对奶牛生产性能的影响显示文摘饲料中的中性洗涤纤维(NDF)含量和饲料颗粒直径是影响瘤胃功能的重要因素。试验评估了以颗粒饲料为主的奶牛瘤胃健康情况、NDF消化率和生产性能。选取8头荷斯坦母牛(336±30 d,体重346±35 kg),随机分配到交叉重复试验组中,奶牛安置于牛栏,自由采食。试验期为3周,前两周是适应期,最后一周为数据收集期。各组饲粮原料相同,但物理形式不同,分为全混合日粮(TMR)和颗粒料(直径=8 mm)。两组间物理有效NDF(pe NDF)不同,TMR组为39.8%,颗粒料组为11.8%。在试验过程中,干物质采食量(DMI)、饮水量、瘤胃反刍时间、瘤胃温度和pH情况均记录。3周后收集粪样,确定潜在的可消化NDF总消化率(pdNDF)。每阶段结束后计算平均日增重和饲料转化率。颗粒料组的DMI、DMI/体重和饮水量更高。而两组间平均日增重和饲料转化率无显著差异。颗粒料组的瘤胃反刍时间为241 min·d-1低于TMR组的507 min·d-1。饲料的不同物理外形对瘤胃温度、瘤胃pH无显著影响。TMR组的pdNDF总消化率为90.25%高于颗粒料组的86.82%。试验结果表明,动物易接受完整的颗粒饲料,DMI较高,且反刍时间减少,但瘤胃pH无显著变化。TMR组的pdNDF消化率显著增加。尽管两组奶牛在DMI和纤维消化方面表现不同,但总体表现相似,两组饲料的保存时间与其物理形式有关。在短期内,提供能满足NDF需求的完全颗粒饲料可改善瘤胃健康状况和动物生产性能,而较长时间的数据则需要进一步试验。Wang J Yang M Cao M Lin Y Che L Q Duraipandiyan V Al-Dhabi N A Fang Z F Xu S Y Feng B Liu G Wu D Bonfante E Palmonari A Mammi L Canestrari G Fustini M Formigoni A 2016饲料博览2016,0,12:2
3Two closely linked rice U14 boxC/D snoRNAsJiang, G Xu, F Jin, YX Wang, DB 2002Progress in Natural Science:Materials International2002,12,1:2
4Methanation steam reforming, Methanation and water-gas shift(I): intrinsic kinetics显示文摘Xu J Froment G F 1989AIChE J1989,35,1:2
5In vivo Bcl-2 oncogene neuronal expression in the rat spinal cord 显示文摘Lou J Lenke L G Xu F 1998Spine1998,23,5:1
6A novel conflict reassignment method based on grey relational analysis (GRA)显示文摘Xu G P Tian W F Qian L 2007Pattern Recognition Letters2007,28,15:1
7A leaf recognition algorithm for plant classification using probabilistic neural network显示文摘Wu S G Bao F S Xu E Y 2007IEEE 7th International Symposium on Signal Processing and Information Technology2007,12,3:1
8Patterns of cytosine methylation in an elite rice hybrid and its parental lines, detected by a methylation - sensitive amplification polymorphism technique 显示文摘Xiong L Z Xu C G Saghai Maroof M A Zhang Q F 1999Molecular and General Genetics1999,261,3:1
9Rare earth elements (REE) of dissolved and suspended loads in the Xijiang River,South China显示文摘Xu Z F Han G L 2009Appl Geochem2009,24,9:1
10Defect sealing in Pd membranes via point plating 显示文摘ZENG G F GOLDBACH A XU H Y 2009Journal of Membrane Science2009,328,1:1
11显示文摘Wang C F Zhou G W Xu Y Q 2011Journal of PhysicalChemistry C2011,115,22:1
12The structural and magnetic properties of Mn2 xFexNiGa Heusler alloys显示文摘LUO H Z MENG F B FENG Z Q LI Y X ZHU W WU G H ZHU X X JIANG C B XU H B 2010J Appl Phys2010,107,01:1
13Wave induced shallow slides and their features on the Yellow River suhaqueous delta 显示文摘Xu G H Sun Y F Wang X 2009Canadian GeotechnicaI Journal2009,46,12:1
14Aspiration thrnmhectomy of a cute complete carotid bulb occlusion显示文摘Xu G F Suh D C Choi C G el al 2005J Vase Intt rv Radiol2005,16,4:1
15Larger Acoustic Band Gaps Obtained by Configurations of Rods in Two-dimensional Phononic Crystals显示文摘Xu Z L Wu F G Mu Z F 2007Journal of Physics D :Applied Physics2007,40,:1
16Optimization method of alternate traffic restriction scheme based on elastic demand and mode choice behavior显示文摘Shi F Xu G M Liu B 2014Transportation Research PartC2014,39,:1
17Numerical Assessment of Liquefaction Mitigation Effects on Residential Houses:Case Histories of the 2007 Niigata Chuetsu-Offshore Earthquake显示文摘Xu L Y Cai F Wang G X 2013Soil Dynamics&Earthquake Engineering2013,53,5:1
18A new alpha-gliadin gene family for wheat breeding:somatic introgression line II-12derived from Triticum aestivum and Agropyron elongatum显示文摘CHEN F G XU C H CHEN M Z 2008Molecular Breeding2008,22,:1
19Maize and foxtail millet as substantial sources of dietary lead intake 显示文摘Zhang Z W Qu J B Xu G F 1997The Science of the Total Environment1997,208,12:1
20Exogenous hydrogen sulfide postconditioning protects isolated rat hearts against ischemia-reperfusion injury 显示文摘Ji Y Pang Q F Xu G 2008EurJPharmacol2008,587,13:1
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