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Related Concept Videos

Le Chatelier's Principle: Changing Volume (Pressure)02:32

Le Chatelier's Principle: Changing Volume (Pressure)

For gas-phase equilibria, changes in the concentrations of reactants and products can occur with altered volume and pressure. The partial pressure, P, of an ideal gas is proportional to its molar concentration, M.
Fluid Pressure01:14

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In mechanical engineering, fluid pressure plays a critical role in designing systems that utilize liquid flow, such as hydraulic systems, pumps, and valves. When designing these systems, engineers must ensure they can withstand the forces created by fluid pressure to avoid damage or failure.
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Maintaining optimal conditions within fermenters is essential for maximizing microbial productivity and ensuring process efficiency. This lesson focuses on key parameters—temperature, foam, pH, carbon dioxide, oxygen, and pressure—and their precise measurement and control strategies in fermentation systems.Temperature ControlTemperature regulation is critical due to the exothermic nature of many fermentation processes. In small laboratory fermenters, temperature is commonly monitored using...
Excess Pressure Inside a Drop and a Bubble01:13

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The shape of a small drop of liquid can be considered spherical, neglecting the effect of gravity. This drop can further be considered as two equal hemispherical drops put together due to surface tension. The forces acting on the spherical drop are due to the pressure of the liquid inside the drop, the pressure due to air outside the drop, and the force due to the surface tension acting on the two hemispherical drops.
The Joule and Joule–Thomson Experiments01:23

The Joule and Joule–Thomson Experiments

Consider an adiabatic system composed of two chambers, A and B, designed such that no heat flows into or out of the system. Initially, chamber A is filled with a gas at a fixed temperature T1, pressure p1, and volume V1, while chamber B is evacuated. The gas is then gradually forced through a rigid, porous barrier to chamber B, ultimately reaching temperature T2, pressure p2, and volume V2. A piston on the right side maintains a constant pressure (p2), which is lower than p1. The significant...

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Related Experiment Video

Updated: May 16, 2026

Microfluidic Fabrication Techniques for High-Pressure Testing of Microscale Supercritical CO2 Foam Transport in Fractured Unconventional Reservoirs
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Reduce the pressure.

Alison Moore

    Nursing Standard (Royal College of Nursing (Great Britain) : 1987)
    |December 18, 2012
    PubMed
    Summary
    This summary is machine-generated.

    Preventable pressure ulcers are a key patient harm indicator. Nurses and managers are actively working to eliminate avoidable pressure ulcers, achieving significant improvements in patient care.

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    Area of Science:

    • Healthcare Quality
    • Nursing Practice
    • Patient Safety

    Background:

    • Pressure ulcers are recognized as a critical indicator of patient harm.
    • Effective nursing care is essential for preventing pressure ulcers.
    • The National Health Service (NHS) Midlands and East aims to eliminate avoidable pressure ulcers.

    Purpose of the Study:

    • To assess the impact of nursing practice on reducing pressure ulcer incidence.
    • To evaluate the response of healthcare professionals to pressure ulcer prevention targets.

    Main Methods:

    • Qualitative assessment of nursing and management responses.
    • Analysis of pressure ulcer incidence data within NHS Midlands and East.
    • Review of organizational strategies for pressure ulcer prevention.

    Main Results:

    • Enthusiastic engagement from nurses and managers in pressure ulcer reduction initiatives.
    • Demonstration of dramatic improvements in preventing avoidable pressure ulcers in some organizations.
    • Validation of nursing practice as a key factor in mitigating patient harm.

    Conclusions:

    • Good nursing practice is pivotal in preventing pressure ulcers.
    • Organizational targets for pressure ulcer elimination are achievable with dedicated effort.
    • Successful strategies can lead to significant reductions in patient harm related to pressure ulcers.