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Related Concept Videos

Virtual Work01:20

Virtual Work

977
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...
977
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,...
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Virtual Work for a System of Connected Rigid Bodies01:06

Virtual Work for a System of Connected Rigid Bodies

489
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,...
489
Learning Disabilities01:25

Learning Disabilities

296
Learning disabilities are cognitive disorders caused by neurological impairments that affect cognitive functions like language and reading, without indicating overall intellectual or developmental challenges. These disabilities differ from global intellectual or developmental disabilities as they are limited to distinct cognitive functions. Common learning disabilities include dysgraphia, dyslexia, and dyscalculia, each of which impacts unique aspects of learning.
Dyslexia
Dyslexia is a...
296
Purposive Learning01:22

Purposive Learning

215
E. C. Tolman emphasized the purposiveness of behavior — the idea that much of our behavior is goal-directed. For instance, employees who aim for a promotion work diligently to meet their targets. Tolman argued that when classical conditioning and operant conditioning occur, the organism acquires certain expectations. In classical conditioning, a child might fear a dog because they expect it to bite. In operant conditioning, a person might consistently work overtime because they expect a...
215
Modeling in Therapy01:26

Modeling in Therapy

164
Modeling, a key technique in therapy, uses observational learning to help clients acquire and practice new skills by watching therapists demonstrate desired behaviors. This approach, rooted in Albert Bandura's concept of vicarious learning, plays a significant role in therapeutic interventions for various psychological conditions, including social anxiety, ADHD, and depression.
Participant Modeling
Participant modeling involves therapists demonstrating calm and effective behaviors in...
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Related Experiment Video

Updated: Oct 1, 2025

Author Spotlight: Enhancing Engineering Education via WebVR-Based Online Laboratories
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"You're on mute"-lessons learned with virtual academic detailing.

Aron Nenninger, Sarah J Ball, Amanda G Kennedy

    Journal of the American Pharmacists Association : Japha
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    Academic detailing pivoted to virtual formats during COVID-19, presenting new opportunities and challenges. Future approaches may blend virtual and in-person methods for enhanced medical education outreach.

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    Area of Science:

    • Medical Education
    • Health Services Research

    Background:

    • Academic detailing traditionally involves in-person, individualized discussions on therapeutic decisions.
    • The COVID-19 pandemic necessitated a rapid shift to virtual delivery for many academic detailing services.
    • This transition impacted detailing programs across North America, introducing both benefits and difficulties.

    Purpose of the Study:

    • To explore the opportunities and challenges encountered by academic detailing programs transitioning to virtual formats.
    • To identify necessary adaptations in communication and support materials for virtual academic detailing.
    • To inform future strategies for academic detailing, considering a blend of virtual and in-person outreach.

    Main Methods:

    • The study examines the adaptations made by academic detailing services during the COVID-19 pandemic.
    • Focus is placed on changes in communication styles, booking processes, and virtual support materials.
    • Analysis includes strategies for maintaining interactive communication in a virtual setting.

    Main Results:

    • Technology facilitated the continuation of academic detailing services virtually.
    • Adaptations included changes in communication styles, automated booking systems, and optimized virtual support materials.
    • Key challenges involved maintaining two-way communication and determining optimal screen-sharing strategies.

    Conclusions:

    • Virtual academic detailing offers new opportunities but requires careful consideration of communication strategies.
    • Lessons learned during the pandemic will shape future academic detailing models, potentially integrating virtual and in-person elements.
    • Optimizing virtual platforms is crucial for sustaining the effectiveness of academic detailing outreach.