WTF1(What’s this factor 1)是包含"Domain of Unknown Function 860"(DUF860)的一类蛋白,特异定位于植物细胞叶绿体或线粒体中,在内含子的剪切中发挥作用。在研究小麦(Triticum aestivum)热胁迫转录谱时发现一个包含该结构...WTF1(What’s this factor 1)是包含"Domain of Unknown Function 860"(DUF860)的一类蛋白,特异定位于植物细胞叶绿体或线粒体中,在内含子的剪切中发挥作用。在研究小麦(Triticum aestivum)热胁迫转录谱时发现一个包含该结构域的探针受高温诱导表达。通过对其所编码的基因TaWTF1进行克隆并详细分析,发现该基因的启动子区包含HSE、干旱、GA及SA等胁迫和激素响应元件,且该基因在苗期和开花期均受热胁迫诱导表达。在开花期,TaWTF1在普通叶中的表达显著高于包括旗叶在内的其它组织器官。进一步将该基因在拟南芥(Arabidopsis thaliana)中超表达,显著提高了转基因植株在热胁迫下的成活率,说明TaWTF1参与了植物耐热性。该研究为解析植物耐热性分子机理开辟了新的领域,并为作物耐热性分子育种提供了候选基因。展开更多
The WFO Technical Forum 2009 (WTF),sponsored by World Foundrymen Organization,organized by Czech Foundrymens Society,was held on the 1st,2nd and 3rd June 2009,at the Hotel Voronez in Brno,Czech Republic. The 4 day... The WFO Technical Forum 2009 (WTF),sponsored by World Foundrymen Organization,organized by Czech Foundrymens Society,was held on the 1st,2nd and 3rd June 2009,at the Hotel Voronez in Brno,Czech Republic. The 4 days included technical presentations,social events and the very important Ph.D conference. During the event there were the General Assembly bringing together the organizations members from around the world,and an exhibition,supported by 34 world's leading foundry based companies. In addition the event coincided with the Czech Foundrymens Society Foundry Days now in its 46th year.……展开更多
目的为基底节区高血压脑出血的微创方式的选择提供依据。方法选择基底节区高血压脑出血患者80例,随机分为软通道组和硬通道组。两组中按血肿大小又分别分为小量组（25~40ml）和大量组（41~60ml）。两组均于早期行血肿清除,硬通道组在WT...目的为基底节区高血压脑出血的微创方式的选择提供依据。方法选择基底节区高血压脑出血患者80例,随机分为软通道组和硬通道组。两组中按血肿大小又分别分为小量组（25~40ml）和大量组（41~60ml）。两组均于早期行血肿清除,硬通道组在WTF-1型定向仪导引下行穿刺清除血肿。四组患者在治疗前和治疗后1周、2周分别行Glasgow Coma Scale（GCS）量表评分;治疗前和治疗后14d分别行Scandinavian（SSS）卒中评分量表评分;治疗后3个月行改良Rankin Scale（MRS）量表评分。结果两组手术后GCS评分结果差异有统计学意义,硬通道小量组与软通道小量组差异有统计学意义,硬通道小量组优于软通道小量组。结论通过评价,在小血肿组,应用WTF-1型定向仪硬通道有优势。展开更多
This study aims to characterize water table fluctuations and estimate groundwater recharge in the Tougou catchment located in the Sahel zone of Burkina Faso. Water table fluctuation and groundwater budget approaches a...This study aims to characterize water table fluctuations and estimate groundwater recharge in the Tougou catchment located in the Sahel zone of Burkina Faso. Water table fluctuation and groundwater budget approaches are developed on an experimental site equipped with observation wells. The trends of water fluctuations in the different layers of the weathering profile are similar. There is a time-lag response of groundwater recharge to the daily precipitation occurrences. The interaction between the upper (clayey alteration) and lower (transition zone-fractured schist complex) parts of the weathering profile shows that generally the hydraulic head in the upper part is higher than that of the lower part due to difference in drainage porosity. The latter varies at the catchment scale between 0.006 and 0.009 and is inversely proportional to the saturated thickness of the clayey alteration layer. The groundwater recharge is annually estimated between 36 and 49 mm, which correspond to 6% and 9% of mean annual rainfall in the catchment. Annual evapotranspiration was estimated to be about 223 to 443 mm.展开更多
文摘WTF1(What’s this factor 1)是包含"Domain of Unknown Function 860"(DUF860)的一类蛋白,特异定位于植物细胞叶绿体或线粒体中,在内含子的剪切中发挥作用。在研究小麦(Triticum aestivum)热胁迫转录谱时发现一个包含该结构域的探针受高温诱导表达。通过对其所编码的基因TaWTF1进行克隆并详细分析,发现该基因的启动子区包含HSE、干旱、GA及SA等胁迫和激素响应元件,且该基因在苗期和开花期均受热胁迫诱导表达。在开花期,TaWTF1在普通叶中的表达显著高于包括旗叶在内的其它组织器官。进一步将该基因在拟南芥(Arabidopsis thaliana)中超表达,显著提高了转基因植株在热胁迫下的成活率,说明TaWTF1参与了植物耐热性。该研究为解析植物耐热性分子机理开辟了新的领域,并为作物耐热性分子育种提供了候选基因。
文摘 The WFO Technical Forum 2009 (WTF),sponsored by World Foundrymen Organization,organized by Czech Foundrymens Society,was held on the 1st,2nd and 3rd June 2009,at the Hotel Voronez in Brno,Czech Republic. The 4 days included technical presentations,social events and the very important Ph.D conference. During the event there were the General Assembly bringing together the organizations members from around the world,and an exhibition,supported by 34 world's leading foundry based companies. In addition the event coincided with the Czech Foundrymens Society Foundry Days now in its 46th year.……
文摘目的为基底节区高血压脑出血的微创方式的选择提供依据。方法选择基底节区高血压脑出血患者80例,随机分为软通道组和硬通道组。两组中按血肿大小又分别分为小量组（25~40ml）和大量组（41~60ml）。两组均于早期行血肿清除,硬通道组在WTF-1型定向仪导引下行穿刺清除血肿。四组患者在治疗前和治疗后1周、2周分别行Glasgow Coma Scale（GCS）量表评分;治疗前和治疗后14d分别行Scandinavian（SSS）卒中评分量表评分;治疗后3个月行改良Rankin Scale（MRS）量表评分。结果两组手术后GCS评分结果差异有统计学意义,硬通道小量组与软通道小量组差异有统计学意义,硬通道小量组优于软通道小量组。结论通过评价,在小血肿组,应用WTF-1型定向仪硬通道有优势。
文摘This study aims to characterize water table fluctuations and estimate groundwater recharge in the Tougou catchment located in the Sahel zone of Burkina Faso. Water table fluctuation and groundwater budget approaches are developed on an experimental site equipped with observation wells. The trends of water fluctuations in the different layers of the weathering profile are similar. There is a time-lag response of groundwater recharge to the daily precipitation occurrences. The interaction between the upper (clayey alteration) and lower (transition zone-fractured schist complex) parts of the weathering profile shows that generally the hydraulic head in the upper part is higher than that of the lower part due to difference in drainage porosity. The latter varies at the catchment scale between 0.006 and 0.009 and is inversely proportional to the saturated thickness of the clayey alteration layer. The groundwater recharge is annually estimated between 36 and 49 mm, which correspond to 6% and 9% of mean annual rainfall in the catchment. Annual evapotranspiration was estimated to be about 223 to 443 mm.
