To meet the public needs in real-time traffic information, this paper conducts a study on key technologies in automatic identification of traffic situations on urban expressways.

为满足社会公众对实时交通状态信息发布服务的需求，对城市快速路交通状态自动判别解决方案的关键技术进行研究。

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The new US study of zebrafish has identified a key cellular pathway that appears to trigger regeneration by switching on certain genes.

美国对斑马鱼的最新研究确认，再生的关键细胞途径似乎是通过开关某种基因而激活再生。

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Going to bed early is key to getting enough sleep and helping adolescents feel on top of the world, a new study reported.

一项最新研究报告称，早睡不仅是得到充足睡眠的关键，而且有助于改善青少年的情绪。

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Successful completion of that survey was a key criteria for an April 2011 Rudd Center study on food addiction.

FORBES: Compliant Media Plays Its Role in Activists' War on Food

At the beginning of each week, the author of a case study will present a brief document describing the key policy concerns faced by the institution and inviting the participants to comment on a number of issues or questions.

UNESCO: Communication and Information