“Usually, quantum cascade laser designs have only one upper state, except for superlattice active region, ” Kazuue Fujita, the lead author on the paper, tells PhysOrg.com in an email interview.

“通常情况下，除了超晶格活跃区域，量子级联激光器设计只有一个高能态，”论文第一作者藤田一惠（Kazuue Fujita）在电子邮件采访中告诉PhysOrg.com。

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However, failure to seize this opportunity to train them more effectively for the workplace, and to be active citizens, could lead to widespread disillusionment and social tensions.

然而，如果不抓住这个机会对他们进行更有效的就业培训，并引导他们成为积极的公民，就有可能导致广泛的希望幻灭和社会紧张。

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First, it confirms that repeated, active suppression of specific encoded information can lead to subsequent forgetting of that information.

首先，它证明了对特定编码的信息进行重复的、主动的抑制可以导致随后对该信息的遗忘。

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and they did it,". He says reforms undertaken by communist dictatorships never lead to systemic change without an active opposition creating what he calls a "civil society movement."

VOA: standard.2009.11.03

Hollywood has two choices: be active and lead the movement or be reactive and see what happens.

FORBES: The Moneyball Cure For What Now Ails Hollywood

Representative Evans, thank you for your outstanding work to ensure that the kids across this state can lead active, healthy lives.

WHITEHOUSE: Making Healthy Food Accessible & Affordable

Dr Thomas said the majority of people with sickle cell disease can lead active lives, provided they receive the right expert support.

BBC: Sickle cell hospital admissions cut