, 2012 沉积物磷释放可明显促进水体富营养化,但其关键组分与调控因素尚待深入研究。系统分析了巢湖及其入湖河流(南淝河)沉积物有机质(OM)、不同形态磷含量、磷吸附参数的垂直分布特征。结果表明:铁结合态磷(Fe(OOH)～P)与钙结合态磷(CaCO3～P)为沉积物磷的主要存在形态,且均与磷平衡浓度(EPC0)显著正相关。与巢湖相比,南淝河具有明显较高的沉积物最大磷吸附量(Qmax),而由此增强的磷缓冲能力可被较高的Fe(OOH)～P含量所抵消,从而表现出较强的磷释放潜力(高EPC0值)。有机质能以线性方式增加Fe ...
李慧, 周易勇, 宋春雷, 曹秀云
core
[Preparation of dual-ligand magnetic hydrogen-bonded organic frameworks and their application for enrichment of glycosylated and phosphorylated peptides]. [PDF]
Se PuYang YH +7 more
europepmc +1 more source
, 2016 为了认识三峡水库沉积物磷的赋存状况,利用磷形态标准测试程序SMT法对干流和三条代表性支流(香溪河、大宁河、小江)的柱状沉积物进行了总磷(TP)、无机磷(IP)、有机磷(OP)、铁/铝磷(Fe/Al-P)、钙磷(Ca-P)的测定,结果表明干流沉积物TP含量为781~1026 mg·kg-1,支流沉积物TP含量为382~1085 mg·kg-1.TP主要由IP组成,OP所占比例较低;IP主要由Ca-P组成,Fe/Al-P所占比例较低.干流TP含量空间差异不显著,但各赋存形态磷的含量普遍高于支流 ...
赵雪 +6 more
core
[Research progress on the regulatory role and mechanisms of the Hippo signaling pathway in the pathogenesis of congenital heart disease]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiLi QX, Chen JY, Zhu YB, Li HB.
europepmc +1 more source
[Effect of inferior alveolar nerve transection on mandibular condyles in rats and the repair effect of calcitonin gene-related peptide]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZhang M, Cheng K, Li J, Liu Z, Jiang T.
europepmc +1 more source
[Gambogic acid protects against lipopolysaccharide-induced acute lung injury via the MAPK signaling pathway]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiWang L +5 more
europepmc +1 more source
, 2007 采集滇池水体作为铜绿微囊藻培养基,研究了两种有机磷农药(甲胺磷和辛硫磷)对微囊藻生长和摄磷效应的动力学规律。结果表明,在滇池水体中添加较低浓度的甲胺磷(0.8、1.6、3.2mg/L)和辛硫磷(0.02、0.06、0.1mg/L)均能不同程度地促进微囊藻的生长,且在HGZ培养基中抑制微囊藻生长的浓度在滇池水体中却能促进微囊藻的生长。微囊藻的生长取决于细胞内磷的浓度且对磷的吸收利用存在积累性,在微囊藻生长初期,摄取各形态磷的速率较快;随后微囊藻摄取各形态磷的速率较慢。总溶解磷(TSP)和溶解反应磷 ...
周培疆, 宋立荣, 沈宏, 刘永定
core
[Research progress on mitochondria-lipid droplet coupling and its regulation of lipid metabolism and obesity]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanZheng W, Long Y, Yang L.
europepmc +1 more source
, 2017 施用氮和磷素对油松生长有一定的促进作用，为进一步了解其对针叶形态与解剖结构的影响，采用田间小区 实验，设置4种处理，即对照（不施氮和磷）、施氮（+ N，每次20 kg/hm2，连续施用7次，下同）、施磷（+ P，每次10 kg/ hm2）及氮磷共施（+ NP，每次N 20 kg/hm2 + P 10 kg/hm2），对油松当年生针叶开展研究. 结果显示：施氮、施磷或氮 磷共施增加了油松的地径、冠幅和地上部生物量，施氮或磷后叶氮或磷含量显著增加.
陈丽茹, 邵景侠, 李秧秧
core
[Clinical and genetic characteristics and follow-up of 12 children with hypophosphatasia]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiWu S +8 more
europepmc +1 more source