The synthesis of the lanthanide chelates of α′-(trifluoromethyl)polyfluoroalkyl β-dike-tones Ln {CF_3CF_2 [CF_2OCF(CF_2)]_n COCHCOC(CH_3)_3}_3[1,n=1;Ln=Eu(1
The alpine-type ultrabasic rocks of the studied area have undergone plastic deformation under a temperature about 800--1200℃, a pressure about 0.9--1.68 GPa a
AIM:An elevated plasma level of 5-hydroxytryptamine(5-HT)and/or upregulation of 5-HT receptor signaling are implicated in vascular contraction and remodeling in