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故乡无此好天恩--齐白石三上北京的职业化之路 被引量:8
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作者 张涛 《美术研究》 CSSCI 北大核心 2012年第4期75-82,共8页
从心怀"五柳先生"梦想的家庭画师,到"欲乞燕台葬画师"的落魄逃难者,直至成为驰名中外的职业画家,齐白石三上北京的职业化之路历经坎坷。在士商之间的角色转换中,他的处事原则与职业心态有着非常微妙的递变经历,同... 从心怀"五柳先生"梦想的家庭画师,到"欲乞燕台葬画师"的落魄逃难者,直至成为驰名中外的职业画家,齐白石三上北京的职业化之路历经坎坷。在士商之间的角色转换中,他的处事原则与职业心态有着非常微妙的递变经历,同时也明显存在着一个收缩与调试的平衡过程。齐白石最终能够得以"海国都知老画家",北京的艺术市场起着决定性的作用。细究齐白石在职业化进程中由身份转换所促成的多样面孔与复杂心史,其实一定程度上也是民初北京职业画家群体的缩影。只不过最终像齐白石那样名利双收者,人数寥寥。 展开更多
关键词 五柳先生 桃源生活 士商之间 职业画家
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Hypericin in hypericum:chemistry, botanical sources and biological activities
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作者 黄林芳 陈士林 《Journal of Chinese Pharmaceutical Sciences》 CAS 2012年第5期388-400,共13页
Hypericin, a secondary metabolite first reported in 1830, is a natural photosensitizing naphtodianthrone and is mainly from the natural plant sources of genus Hypericum. Hypericin exhibits a wide variety of biological... Hypericin, a secondary metabolite first reported in 1830, is a natural photosensitizing naphtodianthrone and is mainly from the natural plant sources of genus Hypericum. Hypericin exhibits a wide variety of biological and pharmacological activities, such as antiviral, antidepressant, antitumor, antimicrobial, and antioxidant activity. Hypericin can also be utilized in photodynamic diagnosis. Accumulating evidence is pointing to the effects of hypericin with potential pharmaceutical and clinical interests in the past decades. The present review gives a comprehensive outline of the chemistry, botanical occurrence and biological activities of this powerful compound. 展开更多
关键词 HYPERICIN Botanical sources CHEMISTRY Biological activities
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