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Related Concept Videos

Work01:22

Work

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Work is done when energy is transferred from one object to another. In other words, work is when a force acts on something that undergoes a displacement from one position to another. Forces can vary as a function of position, and displacements can be along various paths between two points. The increment of work (dW) done by a force acting through an infinitesimal displacement can be defined as the dot product of force () and displacement () vectors.
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Work is a fundamental concept of mechanical engineering and has many applications. Understanding how work is calculated and the different types of work can help us better understand physical processes and provide insights into complex problems.
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Another way in which a group presence can affect performance is social loafing—the exertion of less effort by a person working together with a group. Social loafing occurs when our individual performance cannot be evaluated separately from the group. Thus, group performance declines on easy tasks (Karau & Williams, 1993). Essentially individual group members loaf and let other group members pick up the slack. Because each individual’s efforts cannot be evaluated,...
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Fatigue01:21

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Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
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The Problem-Oriented Medical Record (POMR) revolutionized medical record-keeping by introducing a systematic approach focusing on the patient's problems rather than merely listing symptoms. Dr. Lawrence Weed's introduction of this method in the 1960s marked a significant advancement in medical documentation. The POMR framework consists of four key components: the database, problem list, plan of care, and progress notes.
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Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
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Staff 'missing breaks and meals' due to workload.

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    Nursing Standard (Royal College of Nursing (Great Britain) : 1987)
    |January 26, 2017
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    Summary
    This summary is machine-generated.

    Nurses are reportedly working grueling 12-hour shifts without essential breaks or sustenance. This practice, highlighted by the Royal College of Nursing (RCN), raises serious concerns about healthcare worker well-being and patient safety.

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    Area of Science:

    • Nursing Practice
    • Healthcare Worker Well-being
    • Occupational Health

    Background:

    • Healthcare systems globally face staffing challenges.
    • Extended work hours are common in nursing.
    • Adequate breaks and nutrition are crucial for performance.

    Purpose of the Study:

    • To investigate the prevalence of extended nursing shifts without breaks.
    • To assess the impact of these conditions on nurses.
    • To inform policy regarding working conditions in nursing.

    Main Methods:

    • Data collection via surveys and interviews with nurses.
    • Analysis of reported working hours and break frequency.
    • Qualitative assessment of experiences related to food and hydration.

    Main Results:

    • A significant number of nurses work shifts exceeding 12 hours.
    • Many nurses report working without any breaks.
    • Lack of access to food and water during shifts is prevalent.

    Conclusions:

    • Current nursing work conditions pose risks to nurse health.
    • The findings indicate a need for immediate intervention.
    • Policy changes are required to ensure safe and sustainable nursing practices.