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Related Concept Videos

Intellectual Disability01:29

Intellectual Disability

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Intellectual disability (ID) is a neurodevelopmental condition characterized by deficits in intellectual and adaptive functioning that manifest during the developmental period. This condition encompasses challenges in reasoning, memory, problem-solving, and learning, accompanied by impairments in everyday life skills, such as communication, self-care, and social interactions. Intellectual disability affects approximately 1% of the population in the United States, impacting an estimated 5...
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Learning Disabilities01:25

Learning Disabilities

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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.
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Rolling Resistance01:21

Rolling Resistance

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When a solid cylinder rolls steadily on a rigid surface, the normal force applied by the surface on the cylinder is perpendicular to the tangent at the contact point. However, since no materials are entirely rigid, the surface's reaction to the cylinder involves a range of normal pressures.
For instance, imagine a hard cylinder rolling on a comparatively soft surface. The cylinder's weight compresses the surface beneath it. As the cylinder moves, the material in front of it slows down due to...
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Rolling Without Slipping01:09

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People have observed the rolling motion without slipping ever since the invention of the wheel. For example, one can look at the interaction between a car's tires and the surface of the road. If the driver presses the accelerator to the floor so that the tires spin without the car moving forward, there must be kinetic friction between the wheels and the road's surface. If the driver slowly presses the accelerator, causing the car to move forward, the tires roll without slipping. It is...
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Autism Spectrum Disorder01:19

Autism Spectrum Disorder

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Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
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Rolling Resistance: Problem Solving01:17

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Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
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Related Experiment Video

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Wheelers Make Strides, All Disabled People Win.

M Duda

    The Physician and Sportsmedicine
    |July 14, 2016
    PubMed
    Summary

    Innovations in wheelchair design, driven by wheelchair sports, enhance athletic competition and improve life opportunities for individuals with disabilities.

    Area of Science:

    • Biomechanics and Sports Science
    • Rehabilitation Engineering
    • Disability Studies

    Background:

    • Growing interest in wheelchair sports has motivated advancements in wheelchair technology.
    • These developments aim to enhance performance and accessibility for athletes and the broader disabled community.

    Purpose of the Study:

    • To examine the impact of wheelchair design innovations on competitive sports.
    • To assess the broader societal benefits of these technological advancements for disabled individuals.

    Main Methods:

    • Literature review of recent wheelchair design research.
    • Analysis of performance data from wheelchair sports.
    • Case studies on the adoption of advanced wheelchairs.

    Main Results:

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    • Significant improvements in wheelchair maneuverability, speed, and stability.
    • Increased participation and performance levels in various wheelchair sports.
    • Enhanced independence and quality of life reported by users.

    Conclusions:

    • Wheelchair design advancements directly correlate with heightened athletic competition.
    • Technological progress in wheelchairs offers substantial benefits beyond sports, improving daily living and opportunities for disabled people.