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Related Concept Videos

Muscle Contraction01:15

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Muscle Contraction01:10

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In skeletal muscles, acetylcholine is released by nerve terminals at the motor endplate—the point of synaptic communication between motor neurons and muscle fibers. The binding of acetylcholine to its receptors on the sarcolemma allows entry of sodium ions into the cell and triggers an action potential in the muscle cell. Thus, electrical signals from the brain are transmitted to the muscle. Subsequently, the enzyme acetylcholinesterase breaks down acetylcholine to prevent excessive...
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Smooth Muscle Contraction01:25

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Smooth muscle contraction is a complex process vital for various bodily functions, from maintaining blood vessel tension to facilitating the movement of food through the digestive tract. Unlike striated muscles, smooth muscle contraction begins more slowly and lasts longer.
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Skeletal muscle fibers have the unique ability to switch between rest and contraction states, using different sources of ATP for energy. The contraction cycle and Ca2+ transport back into the sarcoplasmic reticulum for relaxation require significant ATP. However, the ATP reserves in muscle fibers are limited and can only sustain contractions for a few seconds. Additional ATP production becomes necessary for prolonged contractions. As a result, muscle fibers generate ATP through various sources,...
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Two primary types of muscle contractions are isotonic and isometric, each serving unique functions and involving distinct mechanisms. Both isotonic and isometric contractions are integral to the body's complex system of movement and stability. Isotonic exercises contribute significantly to functional strength and movement, while isometric contractions are crucial for maintaining posture and joint stability.
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Masonry walls are subject to slight expansion and contraction due to variations in temperature and moisture. Thermal movement in masonry is relatively straightforward to measure and plan for. On the other hand, moisture movement poses more of a challenge. New clay masonry units typically absorb water and expand over time under normal environmental conditions. Conversely, new concrete masonry units tend to shrink as they lose the excess moisture acquired during their production process.
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Staying Mad: Walmart Gets Even-by Contracting Directly.

Lola Butcher

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    |March 19, 2019
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    Summary
    This summary is machine-generated.

    Walmart is using direct contracting, a healthcare strategy where they pay top providers for specific treatments. This approach aims to manage rising healthcare costs by focusing on high-value care for employees.

    Keywords:
    Direct Contracting

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    Area of Science:

    • Healthcare Management
    • Health Economics
    • Business Strategy

    Background:

    • Rising healthcare expenditures pose significant challenges for large corporations.
    • Historical concerns regarding healthcare costs were voiced by prominent business leaders.
    • The need for innovative cost-containment strategies in employee healthcare is evident.

    Purpose of the Study:

    • To examine Walmart's implementation of direct contracting in healthcare.
    • To analyze the use of centers-of-excellence contracts by large employers.
    • To understand the strategic shift towards value-based provider payments.

    Main Methods:

    • Analysis of Walmart's direct contracting initiatives.
    • Review of centers-of-excellence contract models.
    • Evaluation of payment structures to high-value provider organizations.

    Main Results:

    • Walmart is actively engaging in direct contracting for employee healthcare.
    • Centers-of-excellence contracts are being utilized to address specific medical issues.
    • This strategy involves direct payment to select, high-performing provider groups.

    Conclusions:

    • Direct contracting represents a strategic move by Walmart to control healthcare spending.
    • Centers-of-excellence models offer a framework for targeted, high-quality care.
    • Employer-led healthcare initiatives are evolving towards value-based purchasing.