In some studies, zinc nasal sprays and lozenges have been shown to reduce the duration of a cold and the severity of symptoms, but overall, the research is inconsistent.

一些研究结果显示：锌的鼻腔喷雾剂和含片能缩短感冒病程、缓解感冒症状。

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Building upon the Russian scientist's research, Wheeler created a numerically-weighted ranking system to separate wars and even individual battles allowing him to assess their duration and severity.

建基在俄罗斯科学家的研究基础上，惠勒创建一种加权数字的排名系统，来分隔独立战争及甚至个别的战斗，让他来评估它们的持续时间和严重程度。

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On the basis of Shi Yuzhi's research on quantitative meaning of concepts, this research emphasizes on two important semantic features in quantitative concepts, namely, individuality and duration.

本文根据石毓智对数量语义特征的研究，从数量特征中的离散性和连续性两方面着手，归纳出名词、形容词转化必须各自消除掉自身原有的数量特征的规律。

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There has been a lot of research about the optimal duration in a health-care setting, such as a hospital.

WSJ: Hand-Washing Techniques for Good Health

Now Major Peake, as he waits to be assigned a space mission, is in an ongoing programme of spacesuit training, zero-g flights to "practice weightlessness" and 12-day stints 20m (65ft) under water to research "crew behaviour for long-duration missions".

BBC: Major Tim Peake says he is not too old to go into space

The long held belief that adults who are unable to quit smoking is ultimately related to duration of smoking may potentially be replaced by such research showing that there are specific genetic factors which could influence teen smokers to become heavy smokers throughout their lives.

FORBES: Genetic Factors Linked to Smoking Addiction in Teens