, 2009 测定了底栖藻类在武汉东湖沿岸带人工基质上建群时的生物量和藻垫中不同组分的磷含量,结果显示,建群期间底栖藻类的生物量(叶绿素a和无灰干质)与总磷(total phosphorus,TP)含量显著相关.建群早期藻垫中总磷的含量随底栖藻类生物量的缓慢增加而增加,随着以绿藻占优势的底栖藻类群落的发展,生物量呈指数级增加,藻垫的总磷含量也快速增加,两者同时在第28d达到最高峰值(Chl a=54.5μg.cm-2;TP=96.7μg.cm-2).单位生物量的藻垫对磷的滞留作用(TP/Chl a ...
裴国凤, 胡征宇, 刘国祥
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[Advances in research on the mechanisms of reactive oxygen species in platelet activation and thrombosis]. [PDF]
Zhonghua Xue Ye Xue Za ZhiShen RY, Xu KL, Qiao JL, Fu P.
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, 1999 酶在水生态系统的物质循环与能量转化过程中具有关键作用本文以湖泊磷酸酶为例讨论了水环境中酶的来源、特征及其生态学意义酶主要源于细菌、浮游植物和浮游动物，且能以胞外的或溶解态的形式存在这部分酶对于ｐＨ值、温度以及其它理化条件表现出明显的适应性和稳定性．磷酸酶能补充磷的营养、指示磷的丰缺、介导磷的循环．水环境中酶效应的广泛以及作用的特殊性已足以使之成为“生态酶学（ Ｅｃｏｌｏｇｉｃａｌ Ｅｎｚｙｍｏｌｏｇｙ）”的独立分支 ...
周易勇,付永清
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[Recent advances in the management of iron deficiency and iron deficiency anemia during pregnancy]. [PDF]
Zhonghua Xue Ye Xue Za ZhiZhang J, Chen M.
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[Research progress on the role and mechanism of magnesium element and magnesium materials in tendon-bone interface healing]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYue H +6 more
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[Research progress on the mechanism of mitochondrial dynamics in diabetic foot ulcers and its related intervention strategies]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiShan B +6 more
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[Effect of dephosphorylation of tumor metastasis suppressor gene <i>LASS2</i> on vacuolar ATPase activity and invasiveness of prostate cancer]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanLiu Y +8 more
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本发明涉及表面化学及应用化学领域,具体地,本发明涉及一种固体表面修饰空气稳定性磷脂膜的方法。根据本发明的方法包括:1)制备聚乙二醇(PEG)化磷脂分子的小单壁磷脂囊泡溶液,其中PEG化磷脂分子的摩尔百分含量不超过5mol%;2)将步骤1)得到的小单壁磷脂囊泡溶液与壳聚糖改性的固体表面室温静置反应;以及3)去除未结合的磷脂囊泡。该方法可解决常规方法修饰磷脂膜时的空气不稳定性问题,另外由于PEG化磷脂的添加,使小单壁磷脂囊泡的制备时间大大缩短,且提高了磷脂囊泡的稳定性。利用该方法形成的磷脂双层膜 ...
靳刚, 陈艳艳, 张义浜
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[Refractory systemic lupus erythematosus-associated thrombocytopenia treated with avatrombopag: A case report]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanTang X +8 more
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[Preparation and <i>in vitro</i> biological performance evaluation of tannic acid-Brushite <i>in situ</i> composite bone cement material]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZeng C, Tang J, Li T, Gao W.
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