0228338 室性心动过速时再进入线路几何学周期长度和慢传导区周期长度的动态关系/Ciaccio E J//Circulation.-2001,103(7).-1017～1024 医科图0228339 抗自主神经膜受体抗体在室性心律失常和窦房结功能不全时的不同外观及生物化学的效应...0228338 室性心动过速时再进入线路几何学周期长度和慢传导区周期长度的动态关系/Ciaccio E J//Circulation.-2001,103(7).-1017～1024 医科图0228339 抗自主神经膜受体抗体在室性心律失常和窦房结功能不全时的不同外观及生物化学的效应/Chiale P A//Circulation.-2001,103(13).-1765～1771展开更多
Aligned spaces generalize topological spaces and generate Higgs spaces. We give a necessary and sufficient condition for a finite aligned space to be a topological space, we prove the existence of two kinds of convex ...Aligned spaces generalize topological spaces and generate Higgs spaces. We give a necessary and sufficient condition for a finite aligned space to be a topological space, we prove the existence of two kinds of convex geometries, and we compare several concepts and results for arbitrary （that is, not necessarily finite） aligned, topological and Higgs spaces.展开更多
A recent study has revealed a full 3-dimentional reactive scattering picture of the reaction CI＋CHD3（v1=1） as the C1 atoms attack CHD3 from various directions respective to the C-H stretching bond. The reported pol...A recent study has revealed a full 3-dimentional reactive scattering picture of the reaction CI＋CHD3（v1=1） as the C1 atoms attack CHD3 from various directions respective to the C-H stretching bond. The reported polarization-dependent differential cross sections provide the most detailed characterization of the influences of reagent alignments on reactivity. To convey the stereo-specific information more accessible to general chemists, we show here, by proper symmetry considerations, how to retrieve from the measurements the relative integral and differential cross sections of two most common collision geometries： the end-on versus side-on attacks. The results, albeit coarse-grained, provide an appealing picture that not only reinforces our intuition about chemical reactivity, but also sheds more light on the conventional （unpolarized） attributes.展开更多
文摘0228338 室性心动过速时再进入线路几何学周期长度和慢传导区周期长度的动态关系/Ciaccio E J//Circulation.-2001,103(7).-1017～1024 医科图0228339 抗自主神经膜受体抗体在室性心律失常和窦房结功能不全时的不同外观及生物化学的效应/Chiale P A//Circulation.-2001,103(13).-1765～1771
文摘Aligned spaces generalize topological spaces and generate Higgs spaces. We give a necessary and sufficient condition for a finite aligned space to be a topological space, we prove the existence of two kinds of convex geometries, and we compare several concepts and results for arbitrary （that is, not necessarily finite） aligned, topological and Higgs spaces.
文摘A recent study has revealed a full 3-dimentional reactive scattering picture of the reaction CI＋CHD3（v1=1） as the C1 atoms attack CHD3 from various directions respective to the C-H stretching bond. The reported polarization-dependent differential cross sections provide the most detailed characterization of the influences of reagent alignments on reactivity. To convey the stereo-specific information more accessible to general chemists, we show here, by proper symmetry considerations, how to retrieve from the measurements the relative integral and differential cross sections of two most common collision geometries： the end-on versus side-on attacks. The results, albeit coarse-grained, provide an appealing picture that not only reinforces our intuition about chemical reactivity, but also sheds more light on the conventional （unpolarized） attributes.
