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Updated: Jun 8, 2025

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
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确定与鹿相关摩托车撞车事故的频率和严重程度相关的因素

David P Betten1,2, Benjamin M Goulding1, Phillip J Kostka3

  • 1Department of Emergency Medicine, University of Michigan-Sparrow, Lansing, MI, USA.

Wilderness & environmental medicine
|November 6, 2024
PubMed
概括

涉及鹿的摩托车事故很常见,特别是在农村地区的夜晚. 没有戴头盔的骑手面临严重受伤或死亡的风险明显更高.

关键词:
鹿鹿是什么意思 鹿是什么意思头盔的头盔是可以使用的机动车辆碰撞 汽车碰撞 汽车碰撞机动车撞车事故 机动车撞车摩托车头盔的使用方法

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相关概念视频

Frequency-dependent Selection01:21

Frequency-dependent Selection

When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
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