“西学东渐”对新中国水墨人物画体格范式建构的影响

20世纪上半叶,美术史上两次西学东渐对新中国水墨人物画现代体格的形成,有着直接的生发原因和启转关系。本文从特定情境出发,分析两次西学东渐生发的历史背景,阐释了以延安革命美术为指导,以写实主义水墨人物画语言为基础,以苏联"社会主义现实主义"美术创作方法为借鉴和补充,构成新中国水墨人物画体格特征和语言形态的历史必然性。

5As模式在社区肥胖居民中的应用研究

评价5As模式对社区肥胖居民实施健康管理的效果。方法 随机选取练塘镇东庄村与徐练村的肥胖居民共96名作为研究对象,随机数字表法分为管理组(n48)和对照组(n48)。管理组实施为期半年的5As模式进行健康管理,对照组采用单纯饮食运动干预方案,比较干预后两组居民的体格形态和生化指标变化值;比较两组的自我效能感得分。结果 干预后两组间TG、TC和LDL-C的变化差异显著(P<0.05),体重、BMI、腰围和FBG的变化数值差异性极显著(P<0.01);干预前后两组的自我效能感变化值的差异具有统计学意义(P<0.05)。结论 5As模式可以降低肥胖患者的体重、身体质量指数和腰围;能改善肥胖患者的空腹血糖、甘油三酯、总胆固醇和低密度脂蛋白胆固醇水平;同时提高肥胖患者的自我效能感。

Impact of nanocrystallinity segregation on the growth and morphology of nanocrystal superlattices

A colloidal solution of 5 nm Au tetradecanethiol-coated nanoparticles is syn-thesized. After fast evaporation of one drop, ordered monolayers both composed of single domain and polycrystalline nanocrystals are obtained. On increasing the amount of materials and the evaporation time, nanocrystal films with irregular outlines are produced together with close-packed 3D superlattices exhibiting a truncated-tetrahedral shape. Using low-frequency micro-Raman scattering spectroscopy and electron microscopy the building block nanocrystallinity is characterized. Spontaneous nanocrystallinity segregation is revealed： the truncated-tetrahedral supracrystals are shown to mainly contain single domain building blocks while the supracrystalline films are composed of a mixture of single domain and polycrystalline nanocrystals. This observation points out the correlation between the nanocrystallinity segregation involved in the growth of the nanocrystal superlattices and their morphology.