试释“引婴儿”之“引”

《吕氏春秋·察今篇》有这么一句话:“见人方引婴儿而欲投之江中。”其中,“引婴儿”之“引”是怎样一种动作?旧注本原无解释。中华书局出版的王范之《吕氏春秋选注》释此“引”为“牵”,而中学语文课本选入此文时,亦把此“引”字注为“牵引”。

Volumetric and Viscometric Studies of 4-Aminobutyric Acid in Aqueous Solutions of Salbutamol Sulphate at 308.15, 313.15 and 318.15K

Density （ρ） and viscosity （η） measurements were carried out for 4-aminobutyric acid in 0.0041,0.0125 and 0.0207 mol·L-1 aqueous salbutamol sulphate at T=308.15,313.15 and 318.15K.The measured values of density and viscosity were used to estimate some important parameters such as apparent molar volume Vφ,limiting apparent molar volume Vφ0,transfer volume △Vφ0,hydration number Hn,second derivative of infinite dilution of partial molar volume with temperature 2Vφ0/T2,viscosity B-coefficients,variation of B with temperature dB/dT,free energy of activation per mole of solvent △μ10＊ and solute △μ20＊,activation entropy △S20＊ and activation enthalpy △H20＊ of the amino acids.These parameters have been interpreted in terms of solute-solute and solute-solvent interactions and structure making/breaking ability of solutes in the given solution.

奥运马拉松到大众化城市马拉松的嬗变研究

基于亨普尔发生学解释理论,以普遍联系、可解释嬗变事实、无解释嬗变信息三大嬗变构成因素为分析框架,对奥运竞技性马拉松到大众化城市马拉松的嬗变过程予以解析。研究认为:兴起于现代奥林匹克运动的竞技性马拉松,在向当代大众化综合性城市马拉松的嬗变过程中不断与时俱进,通过城市场域的开辟,嬗变为早期竞技性城市马拉松;通过赛道的改线、城市文化的融合,实现了赛事空间上的城市马拉松的全球化发展;性别隔离的打破、参与群体的增设,实现了赛事参与主体上城市马拉松的大众化发展;娱乐化、产业化等因素的融入,大众化城市马拉松朝向综合化发展,赛事内涵更加丰富多元。奥运竞技性马拉松到大众化城市马拉松共经历4次嬗变,嬗变过程中各发生学要素相互影响、共同作用,呈动态平衡式发展,随嬗变阶段推进而不断演化。其中,奥运竞技马拉松到城市化的发展和专业竞技到大众化发展是马拉松运动发展质的飞跃。