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通过分析目前科学事业单位项目经费管理中存在的预算编制不够严谨、预算执行随意、项目结余经费缺乏有效监管等主要问题,提出相关改善建议。 相似文献
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Two centuries after the discovery of chitin, it is widely accepted that this biopolymer is an important biomaterial in many aspects. Numerous studies on chitin have focused on its biomedical applications. In this review, various aspects of chitin research including sources, structure, biosynthesis, chitinolytic enzyme, chitin binding protein, genetic engineering approach to produce chitin, chitin and evolution, and a wide range of applications in bio- and nanotechnology will be dealt with. 相似文献
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F. J. Stevenson 《American Journal of Potato Research》1932,9(12):211-216
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