A 2009 study published in the journal Cancer Research showed that specially-engineered nanoparticles can cross the barrier and attach to tumor tissue.

2009年，发表在《癌症研究》上的一篇论文指出，新型的纳米粒子可以穿过屏障，并附着在肿瘤组织上。

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Under such background, "Social security Study" has become a compulsory or a professional course of colleges in many countries, Specially for the student of the human resources management.

在这样的背景下，《社会保障学》这门课程也成了各国高等院校特别是人力资源管理专业学生的一门必修的基础课或专业理论课。

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Recently, the study of intrinsic noise in life system, specially, in gene expression processes has drawn ever-growing interests and a variety of important results were reported.

近年来，在生命系统中特别是基因表达过程中的内噪声引起了人们的广泛重视，产生了一大批研究结果。

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