It's this question that Stinson et al. (2009) set out to test by manipulated people's expectations about a person they were about to meet for the first time.

Stinson等人(2009)对此做了个实验，通过操纵人们对于将要初次见面的另一个人的预期。

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But Snyder et al point out that the caffeine concentrations needed to inhibit the production of phosphodiesterase in the brain are much higher than those that produce stimulation.

但 Snyder 等人指出，抑制脑内磷酸二酯酶产生所需的咖啡因浓度要比产生刺激的咖啡因浓度高得多。

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British scientist Stephen Hawking is worried that any extraterrestrial life we find is likely to be a creature out of the movie Predator, not ET.

英国科学家斯蒂芬·霍金担心，我们发现的任何外星生命更可能是电影《铁血战士》而不是《ET外星人》里的生物。

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However, he added, the paper by Prof Palmer et al turned out to be " an extremely useful window into the past".

BBC: Tulip tree's genome is 'molecular fossil'

The ET reported that 45 out of 85 companies in the Bombay Stock Exchange 100 index, excluding banks, have added to heir cash balance sheet.

FORBES: Like U.S. Peers, India Corporates Hold Cash, Not Spending

This article presents a methodological critique of the study carried out by Robinson et al (1).

FORBES: Big Study Linking Chronic Fatigue To Virus May Be Fatally Flawed