目的探讨学生标准化病人(student as standardized patient,SSP)在麻醉专业住院医师规范化培训(简称“住培”)教学查房中应用的可行性。方法选择2020年8月—2022年8月安庆市立医院麻醉科住培医师60名,分为研究组和对照组各30名,研究组...目的探讨学生标准化病人(student as standardized patient,SSP)在麻醉专业住院医师规范化培训(简称“住培”)教学查房中应用的可行性。方法选择2020年8月—2022年8月安庆市立医院麻醉科住培医师60名,分为研究组和对照组各30名,研究组采用将SSP引入教学查房的教学模式;对照组采用传统示教模式,两组完成教学查房3个月后采用迷你临床演练评量(mini-clinical evaluation exercise,Mini-CEX)及住培医师满意度调查总结评价教学查房效果。结果研究组问诊能力、查体能力、临床诊断、人文关怀、组织效能、沟通能力以及整体表现评分均高于对照组,差异有统计学意义(P<0.001),研究组满意度高于对照组,差异有统计学意义(P<0.05)。结论麻醉科专业住培教学查房实施过程中引入SSP,调动了住培医师的学习积极性,全面提高了住培医师综合能力与职业素养,可提高麻醉专业住院医师规范化培训教学质量和内涵。展开更多
Polymeric surfactants were prepared by ultrasonic copolymerization of carboxy methyl cellulose (CMC) and alkyl poly(etheroxy) acrylate. The adsorption mechanism of CMC based polymeric surfactants at silica gel/water i...Polymeric surfactants were prepared by ultrasonic copolymerization of carboxy methyl cellulose (CMC) and alkyl poly(etheroxy) acrylate. The adsorption mechanism of CMC based polymeric surfactants at silica gel/water interface was studied by the adsorption isotherms,IR difference spectra. The results show that the adsorptive amount goes up steadily with the increasing of copolymer concentration. Because of multicontact adsorption of copolymers at the surface of silica gel, the strong interaction between copolymers and surface of silica gel (such as hydrogen bond), large amount of polymeric surfactants adsorbs on silica gel. The pH value of copolymer solution plays a great role on adsorption, which indicates that the electrostatic action is the main adsorption mechanism of CMC based polymeric surfactants.展开更多
The micellar conformation of polymeric surfactants based on carboxy methyl cellulose in aqueous solution was studied by dynamic laser scattering and environmental scanning electron microscope. The results show that di...The micellar conformation of polymeric surfactants based on carboxy methyl cellulose in aqueous solution was studied by dynamic laser scattering and environmental scanning electron microscope. The results show that different polymeric surfactants have different micellar conformation. The micelles formed by copolymer A3, B7 and B9 are spheroidal or ellipsoidal. While copolymer A9 which is more hydrophilic forms rod like micelles. At high concentration the micelles in aqueous solution would aggregate and form network structure further. The dependence of micelle size distribution function F(R) on scattering vector confirms again that the micelles of A9 is not like spherical, while the independence of F(R) on scattering angles means B9 molecules forming sphere like micelles.展开更多
文摘Polymeric surfactants were prepared by ultrasonic copolymerization of carboxy methyl cellulose (CMC) and alkyl poly(etheroxy) acrylate. The adsorption mechanism of CMC based polymeric surfactants at silica gel/water interface was studied by the adsorption isotherms,IR difference spectra. The results show that the adsorptive amount goes up steadily with the increasing of copolymer concentration. Because of multicontact adsorption of copolymers at the surface of silica gel, the strong interaction between copolymers and surface of silica gel (such as hydrogen bond), large amount of polymeric surfactants adsorbs on silica gel. The pH value of copolymer solution plays a great role on adsorption, which indicates that the electrostatic action is the main adsorption mechanism of CMC based polymeric surfactants.
文摘The micellar conformation of polymeric surfactants based on carboxy methyl cellulose in aqueous solution was studied by dynamic laser scattering and environmental scanning electron microscope. The results show that different polymeric surfactants have different micellar conformation. The micelles formed by copolymer A3, B7 and B9 are spheroidal or ellipsoidal. While copolymer A9 which is more hydrophilic forms rod like micelles. At high concentration the micelles in aqueous solution would aggregate and form network structure further. The dependence of micelle size distribution function F(R) on scattering vector confirms again that the micelles of A9 is not like spherical, while the independence of F(R) on scattering angles means B9 molecules forming sphere like micelles.
