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相关概念视频

Principle of Virtual Work: Problem Solving01:13

Principle of Virtual Work: Problem Solving

1.3K
The principle of virtual work is an essential concept in the field of mechanics and engineering. This is used to solve problems related to the equilibrium of a structure or system. It is based on the assumption that if a system is in equilibrium, the work done by all the forces during a virtual displacement is zero. This principle is applied by considering virtual displacements of the system and the corresponding work done by internal and external forces.
To apply the principle of virtual work,...
1.3K
Virtual Work01:20

Virtual Work

958
The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
958
Virtual Work for a System of Connected Rigid Bodies01:06

Virtual Work for a System of Connected Rigid Bodies

479
Virtual work is a powerful method used to solve problems involving several connected rigid bodies. When the system is in equilibrium, virtual work is zero. This allows the calculation of the resulting forces when a system undergoes a virtual displacement. When attempting to analyze such a system, first, use a free-body diagram, where an independent coordinate represents the configuration of the links, and mark its deflected position resulting from the positive virtual displacement.
Next,...
479

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相关实验视频

Updated: Sep 17, 2025

Using a Virtual Reality Walking Simulator to Investigate Pedestrian Behavior
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Published on: June 9, 2020

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虚拟特权步行活动的开发和评估.

Harjit Kaur Khera1, Vivienne Mak2, Daniel Thomas Malone1

  • 1Monash University, Faculty of Pharmacy and Pharmaceutical Sciences, Parkville, Australia.

American journal of pharmaceutical education
|June 27, 2025
PubMed
概括

一个匿名的虚拟特权步行改善了学生药剂师对医疗保健包容性的理解,以及他们对压迫的意识. 虽然信心长期增加,但患者咨询一致性的意见显示显著下降.

关键词:
包容性 包容性的药房教育 在药房教育.一个特殊的特权.

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相关实验视频

Last Updated: Sep 17, 2025

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Published on: June 9, 2020

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科学领域:

  • 健康 专业 教育 卫生 专业 教育
  • 健康的社会决定因素
  • 药房实践 在药房实践中

背景情况:

  • 特权步行可以促进对特权的自我反思,但可能会因观察到的差异而引起参与者的不适.
  • 评估创新教学方法对于提高学生对医疗保健中复杂社会概念的理解至关重要.

研究的目的:

  • 评估匿名虚拟特权步行作为一年级药剂师学生教育工具的实用性.
  • 鼓励人们反思医疗保健背景下的特权作为一个概念.

主要方法:

  • 为匿名虚拟特权步行开发了30个语句,允许对结果进行保密比较.
  • 在活动前,活动后立即,以及9个月后进行了16项包容性和压迫调查.
  • 调查测量了对包容性知识的信心,对压迫的意识,咨询一致性意见以及药剂师在包容性中的作用.

主要成果:

  • 观察到信心 (因素1),意识 (因素2) 和对药剂师角色 (因素4) 的意见在活动后显著增加.
  • 活动后立即对药房咨询一致性 (因素3) 的意见有显著的下降.
  • 长期随访 (9个月) 显示,因子1持续增加,因子2和4没有变化,因子3持续下降.

结论:

  • 匿名的虚拟特权步行有效地提高了学生药剂师对理解包容性的信心.
  • 意识到包容性和压迫,以及对药剂师在促进包容性的作用的看法,改善了后期活动.
  • 需要进一步调查关于药房咨询一致性意见的观察到的下降.