Recent research by Peg Nopoulos, Jessica Wood and colleagues at the University of Iowa illustrates just how difficult it is to untangle nature and nurture, even at the level of brain structure.
派格·诺普洛斯、杰西卡·伍德以及他们的同事最近在爱荷华大学做了一项研究，结果显示，即使是从大脑结构上来分析，想要理清先天与后天的纠缠也是十分困难的。
Introduced different molecular weight PEG in chitosan by solvent casting method, the blending system had good compatibility, reached homogeneous phase of the thermodynamic level.
用溶液浇铸法在壳聚糖中引入的不同分子量的聚乙二醇，共混体系相容性好，实现了热力学水平上的均相。
At the same time, the effects of the coating solvent, DBP, PEG-400, coating level, spray rate, air temperature and pan speed on the drug release character are investigated.
同时，考察了包衣溶剂、DBP、PEG - 400、衣膜增重、喷雾速度、包衣温度和包衣锅转速对药物释放的影响。
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