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227篇 您的检索式:作者名="Leonard R A"
    题名 作者 年代 出处 被引量
1Dynamic chromatin states in human ES cells reveal potential regulatory sequences and genes involved in pluripotency显示文摘Pluripotency,一个细胞的能力区分并且产生所有胚胎的系,定义象胚胎的茎(ES ) 那样的哺乳动物的细胞类型的一个小数字细胞。当它通常被保持了时,那 pluripotency 是 transcriptional 的产品激活并且维持关键干细胞基因的表达式的规章的网络,积累的证据在建立并且保卫 ES 房间的 pluripotency 为 epigenetic 进程正在指向一个关键角色,象维持区分的房间类型的身份一样。以便更好在 pluripotency 理解 epigenetic 机制的角色,我们检验了在经历区别进一个 mesendodermal 系的人的 ES 房间(hESCs ) 染色体宽的染色质修正的动力学。我们发现在倡导者的染色质修正在区别期间仍然保持大部分不变,除了在在在 H3K27 的 acetylation 和 methylation 之间的一个动态开关标记在基因表示的激活和 silencing 之间的转变的倡导者的一个小数字,建议在在大多数差别上的房间命运承诺的一个层次表示了基因。我们也在 50 000 潜在的 enhancers 上印射,并且在染色质修正,特别 H3K4me1 和 H3K27ac 观察了大得多的动力学,它与他们的潜在的目标基因的表示相关。这些 enhancers 的进一步的分析揭示了 pluripotency 和可以在 hESCs 授与发展胜任的一个平衡状态的一口染色质签名陈述语气的潜在地关键的 transcriptional 管理者。我们的结果提供在定义 enhancers 和 pluripotency 支持染色质修正的角色的新证据。R David Hawkins Gary C Hon Chuhu Yang Jessica E Antosiewicz-Bourget Leonard K Lee Que-Minh Ngo Sarit Klugman Keith A Ching Lee E Edsall Zhen Ye Samantha Kuan Pengzhi Yu Hui Liu Xinmin Zhang Roland D Green Victor V Lobanenkov Ron Stewart James A Thomson Bing Ren 2011Cell Research2011,21,10:6
2Modeling tetracycline antibiotic sorption to clays显示文摘Figueroa R A Leonard A MacKay A A 2003Environmental Science & Technology2003,38,2:1
3Mutagenicity,Carcinogenicity and Teratogenicity of Beryllium显示文摘Leonard A Lauwyers R 1987Mutation Research1987,186,1:1
4Modeling tetracycline antibiotic sorotion to clays显示文摘Figueroa R A Leonard A MacKay A A 2004Environ Sci Technol2004,38,2:1
5Perceived Usefulness,Service Quality and Loyalty Incentives:Effects on Electronic Service Continuance显示文摘Naidoo R Leonard A 0,,03:1
6MIMO radar with widely separated antennas显示文摘Haimovich A M Blum R S Leonard J 2008IEEE Signal Processing Magazine2008,25,1:1
7GLEAMS:Groundwater loading effects of agricultural management systems显示文摘Leonard R A Knisel W G Still D A 1987Trans Amer Soc of Agri Engrs1987,30,5:1
8Modeling tetracycline antibiotic sorption to clays 显示文摘Figueroa R A Leonard A MacKay A A 2004Environmental Science & Technology2004,38,2:1
9A method for protocol based collision avoidance between autonomous marine surface craft显示文摘Benjamin M R Leonard J J Curcio J A 2006Journal of Field Robotics2006,23,5:1
10Comparative growth and yield of cotton grown in various densities and configura- tions 显示文摘SEIBERT J D STEWART A M LEONARD B R 2006Agron J2006,98,:1
11Observations of ionospheric disturbance following the Alaska earthquake显示文摘Barnes R A Leonard R S 0,,09:1
12Nutrient budgets for agricultural watersheds in the southeastern coastal plain显示文摘Lowrance R Leonard R A Asmussen L E 1985Ecology1985,66,1:1
13Modeling tetracycline antibiotic sorption to clays 显示文摘Figueroa R A Leonard A MacKay A A 2004Environ Sci Technol2004,38,2:1
14Modeling tetracycline antibiotic sorption to clays显示文摘FIGUEROA R A LEONARD A MACKAY A A 2004Environmental Science & Technology2004,38,2:1
15Centrifugal contactors for laboratory-scale solvent extraction tests 显示文摘Leonard R A Chamberlain D B Conner C 1997Separation Science and Technology1997,32,14:1
16Comparative growth and yield of cotton planted at various densities and configurations 显示文摘Siebert J D Stewart A M Leonard B R 2006Agron J2006,98,3:1
17Mutistage bubble fractionator 显示文摘Leonard R A Blacykl J D 1978Ind Eng Chem Process Des Dev1978,17,3:1
18Modeling tetracycline antibiotic sorption to clays 显示文摘Figueroa R A Leonard A MacKay A A 2004Environ Sci Technol2004,38,2:1
19MIMO radar withwidely separated antennas显示文摘Haimovich A M Blum R S Leonard J 2008IEEE Signal Processing Maga-zine2008,25,1:1
20GLEAMS: Groundwater loading effects of agricultural management systems 显示文摘Leonard R A Knisel W G Still D A 1987Transaction of the American Society of Agricultural Engineers1987,30,5:1
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