提议贡山三尖杉的新名称Cephalotaxus talonensis Cheng et Feng ex S.G.Lu et X.D.Lang替代不合法的旧名称Cephalotaxus lanceolata K.M.Feng in Cheng et al.(晚出同名)。对比贡山三尖杉和三尖杉Cephalotaxus fortunei Hooker的模式...提议贡山三尖杉的新名称Cephalotaxus talonensis Cheng et Feng ex S.G.Lu et X.D.Lang替代不合法的旧名称Cephalotaxus lanceolata K.M.Feng in Cheng et al.(晚出同名)。对比贡山三尖杉和三尖杉Cephalotaxus fortunei Hooker的模式标本和自然生长状态下的叶片形态,支持将贡山三尖杉处理为种的等级,不赞同Silba(1990)将贡山三尖杉降为三尖杉的变种[Cephalotaxus fortunei Hooker var.lanceolata(Feng)Silba]。文中提供4幅参照图片。展开更多
As one of the greatest m asters of Dan 1 role performers in Beijing Opera history,Cheng Yanqiu had a very hard time in his childhood in learning the art.In this article,the author has reviewed his early life and probe...As one of the greatest m asters of Dan 1 role performers in Beijing Opera history,Cheng Yanqiu had a very hard time in his childhood in learning the art.In this article,the author has reviewed his early life and probed into the help of Luo Yinggong who supported for his great su ccess.The author has also explored the art of Cheng’s singing,his study from Wang Yaoqing and explored how he created the melodies as well as trying to solve his making-up mystery.展开更多
In the midst of a stock frenzy in China and tight monetary policy carried out by the Chinese government, what knowledge can we glean from a respected state leader, an economist and a people representative?
Exploring the indica-japonica differentiation in parents of hybridization can provide theoretical bases for utilizing inter-subspecific heterosis. In this study, 5 sterile lines and 18 self-bred restorer lines were us...Exploring the indica-japonica differentiation in parents of hybridization can provide theoretical bases for utilizing inter-subspecific heterosis. In this study, 5 sterile lines and 18 self-bred restorer lines were used as female parents and male parents respectively. Then 90 combinations were constructed by incomplete diallel cross followed by relationship analysis between parental Cheng’s index difference value and Euclidean distance and heterosis. The results showed a significant correlation between several phenotype values, super male parent heterosis and control heterosis and Euclidean distance or Cheng’s index difference value. However, it was no significant correlation for yield. Further analysis found a common interval, 3.41 - 3.46 for Euclidean distance and 3 - 4 for cheng’s index difference value of parents, which was significant or high significant positive correlated with phenotype value, super male parent and control heterosis of main yield traits. This illustrates that the larger the genetic difference of parents was, the stronger the heterosis combinations were, when the genetic differences of parents were in an appropriate range.展开更多
Long Day' s Journey into Night is one of Eugene O' Neill' s (1888-1953) masterpieces, who is a great American playwright and called the father of modern American drama. This thesis aims at the analysis of ...Long Day' s Journey into Night is one of Eugene O' Neill' s (1888-1953) masterpieces, who is a great American playwright and called the father of modern American drama. This thesis aims at the analysis of the contradictions in family members in the play. The first part analyzes the contradictions between wife and husband. The second part focuses on the contradictory relationship in parents and sons. The contradictions between brothers are discussed in the third part. Through the study of the causes of the contradictory relationship among family members, the tragedy of the characters in the play will be explored to the readers, which is also the tragedy of modern Ameri can people.展开更多
The author of the paper analyzes the story"Glass Coffin"in A. S. Byatt's Possession and compares it with Brothers Grimm's fairy tale with the same name. Through the study, the author identifies the q...The author of the paper analyzes the story"Glass Coffin"in A. S. Byatt's Possession and compares it with Brothers Grimm's fairy tale with the same name. Through the study, the author identifies the quest motif from our modern hero's discovery journey in Possession.展开更多
目的:采用薄层扫描法测定金银花中黄褐毛忍冬皂苷甲的含量。方法:硅胶 G 薄层板,展开剂:氯仿-甲醇-水(61∶32∶5),显色:10%硫酸乙醇溶液喷雾,105℃烘烤约5min,双波长锯齿扫描,检测波长518nm,参比波长700nm。结果:黄褐毛忍冬皂苷甲的线...目的:采用薄层扫描法测定金银花中黄褐毛忍冬皂苷甲的含量。方法:硅胶 G 薄层板,展开剂:氯仿-甲醇-水(61∶32∶5),显色:10%硫酸乙醇溶液喷雾,105℃烘烤约5min,双波长锯齿扫描,检测波长518nm,参比波长700nm。结果:黄褐毛忍冬皂苷甲的线性范围为1.20～7.20μg,r=0.998。平均回收率为99.76%,RSD 为2.45%。结论:用于金银花中皂苷类成分的分析,本法简便、快速,重现性好。展开更多
石斛属(D end robium Sw.)为兰科植物,约有1 500种。我国有80种,其中药用石斛有51种。在我国传统医学中,石斛为常用药材,现代药理研究证明石斛具有抗肿瘤、抗衰老、降血糖等作用。霍山石斛是安徽省特产的药用石斛,为石斛中的上品。综述...石斛属(D end robium Sw.)为兰科植物,约有1 500种。我国有80种,其中药用石斛有51种。在我国传统医学中,石斛为常用药材,现代药理研究证明石斛具有抗肿瘤、抗衰老、降血糖等作用。霍山石斛是安徽省特产的药用石斛,为石斛中的上品。综述了霍山石斛的生理生化、生物学特性、有效成分等方面的研究现状。展开更多
基金supported by the National Forestry Public Welfare Foundation of China(Grant no.200804024)the National Natural Science Foundation of China(Grant nos.30770164&30970186)
文摘提议贡山三尖杉的新名称Cephalotaxus talonensis Cheng et Feng ex S.G.Lu et X.D.Lang替代不合法的旧名称Cephalotaxus lanceolata K.M.Feng in Cheng et al.(晚出同名)。对比贡山三尖杉和三尖杉Cephalotaxus fortunei Hooker的模式标本和自然生长状态下的叶片形态,支持将贡山三尖杉处理为种的等级,不赞同Silba(1990)将贡山三尖杉降为三尖杉的变种[Cephalotaxus fortunei Hooker var.lanceolata(Feng)Silba]。文中提供4幅参照图片。
文摘As one of the greatest m asters of Dan 1 role performers in Beijing Opera history,Cheng Yanqiu had a very hard time in his childhood in learning the art.In this article,the author has reviewed his early life and probed into the help of Luo Yinggong who supported for his great su ccess.The author has also explored the art of Cheng’s singing,his study from Wang Yaoqing and explored how he created the melodies as well as trying to solve his making-up mystery.
文摘In the midst of a stock frenzy in China and tight monetary policy carried out by the Chinese government, what knowledge can we glean from a respected state leader, an economist and a people representative?
文摘Exploring the indica-japonica differentiation in parents of hybridization can provide theoretical bases for utilizing inter-subspecific heterosis. In this study, 5 sterile lines and 18 self-bred restorer lines were used as female parents and male parents respectively. Then 90 combinations were constructed by incomplete diallel cross followed by relationship analysis between parental Cheng’s index difference value and Euclidean distance and heterosis. The results showed a significant correlation between several phenotype values, super male parent heterosis and control heterosis and Euclidean distance or Cheng’s index difference value. However, it was no significant correlation for yield. Further analysis found a common interval, 3.41 - 3.46 for Euclidean distance and 3 - 4 for cheng’s index difference value of parents, which was significant or high significant positive correlated with phenotype value, super male parent and control heterosis of main yield traits. This illustrates that the larger the genetic difference of parents was, the stronger the heterosis combinations were, when the genetic differences of parents were in an appropriate range.
文摘Long Day' s Journey into Night is one of Eugene O' Neill' s (1888-1953) masterpieces, who is a great American playwright and called the father of modern American drama. This thesis aims at the analysis of the contradictions in family members in the play. The first part analyzes the contradictions between wife and husband. The second part focuses on the contradictory relationship in parents and sons. The contradictions between brothers are discussed in the third part. Through the study of the causes of the contradictory relationship among family members, the tragedy of the characters in the play will be explored to the readers, which is also the tragedy of modern Ameri can people.
文摘The author of the paper analyzes the story"Glass Coffin"in A. S. Byatt's Possession and compares it with Brothers Grimm's fairy tale with the same name. Through the study, the author identifies the quest motif from our modern hero's discovery journey in Possession.
文摘目的:采用薄层扫描法测定金银花中黄褐毛忍冬皂苷甲的含量。方法:硅胶 G 薄层板,展开剂:氯仿-甲醇-水(61∶32∶5),显色:10%硫酸乙醇溶液喷雾,105℃烘烤约5min,双波长锯齿扫描,检测波长518nm,参比波长700nm。结果:黄褐毛忍冬皂苷甲的线性范围为1.20～7.20μg,r=0.998。平均回收率为99.76%,RSD 为2.45%。结论:用于金银花中皂苷类成分的分析,本法简便、快速,重现性好。
文摘石斛属(D end robium Sw.)为兰科植物,约有1 500种。我国有80种,其中药用石斛有51种。在我国传统医学中,石斛为常用药材,现代药理研究证明石斛具有抗肿瘤、抗衰老、降血糖等作用。霍山石斛是安徽省特产的药用石斛,为石斛中的上品。综述了霍山石斛的生理生化、生物学特性、有效成分等方面的研究现状。
