This paper classifies the definitions of rhetoric into four groups based on the defining methods in Li’s English Rhetoric and Essay Writing so that one can have a deeper understanding of the term "rhetoric".
目的:探讨体外重建人表皮(reconstructed human epidermis,RhE)试验应用于医疗器械皮肤刺激检测的可行性。方法:制备水胶体敷料极性和非极性试验液以及体积分数为4%和1.5%的乳酸溶液作为试验样品,采用体外RhE试验和体内动物(新西兰白兔...目的:探讨体外重建人表皮(reconstructed human epidermis,RhE)试验应用于医疗器械皮肤刺激检测的可行性。方法:制备水胶体敷料极性和非极性试验液以及体积分数为4%和1.5%的乳酸溶液作为试验样品,采用体外RhE试验和体内动物(新西兰白兔)试验检测试验样品的皮肤刺激性,并比较2种试验的结果。结果:体外RhE试验显示,水胶体敷料极性和非极性试验液及1.5%的乳酸溶液的皮肤刺激性均为阴性,而4%的乳酸溶液的皮肤刺激性为阳性;体内动物试验显示,各试验样品的皮肤刺激性均为阴性。结论:体外RhE试验比体内动物试验更加灵敏、客观,可应用于医疗器械皮肤刺激检测。展开更多
Four complexes containing the [Re(V)O]3+ core have been prepared by substitution on the precursors RO(citrate)2- and ReO(gluconate)2-. The complex [ReO(MBT)2OH] was obtained by reaction of the direct reduction of ReO4...Four complexes containing the [Re(V)O]3+ core have been prepared by substitution on the precursors RO(citrate)2- and ReO(gluconate)2-. The complex [ReO(MBT)2OH] was obtained by reaction of the direct reduction of ReO4- using sodium borohydride as a reducing agent. Four complexes were character-ized by UV-Vis and IR spectrophotometer, elemental analyses, 1H-and 13C NMR spectroscopy, TG and DFT calculations.展开更多
文摘This paper classifies the definitions of rhetoric into four groups based on the defining methods in Li’s English Rhetoric and Essay Writing so that one can have a deeper understanding of the term "rhetoric".
文摘目的:探讨体外重建人表皮(reconstructed human epidermis,RhE)试验应用于医疗器械皮肤刺激检测的可行性。方法:制备水胶体敷料极性和非极性试验液以及体积分数为4%和1.5%的乳酸溶液作为试验样品,采用体外RhE试验和体内动物(新西兰白兔)试验检测试验样品的皮肤刺激性,并比较2种试验的结果。结果:体外RhE试验显示,水胶体敷料极性和非极性试验液及1.5%的乳酸溶液的皮肤刺激性均为阴性,而4%的乳酸溶液的皮肤刺激性为阳性;体内动物试验显示,各试验样品的皮肤刺激性均为阴性。结论:体外RhE试验比体内动物试验更加灵敏、客观,可应用于医疗器械皮肤刺激检测。
文摘Four complexes containing the [Re(V)O]3+ core have been prepared by substitution on the precursors RO(citrate)2- and ReO(gluconate)2-. The complex [ReO(MBT)2OH] was obtained by reaction of the direct reduction of ReO4- using sodium borohydride as a reducing agent. Four complexes were character-ized by UV-Vis and IR spectrophotometer, elemental analyses, 1H-and 13C NMR spectroscopy, TG and DFT calculations.
