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Related Concept Videos

Power01:08

Power

The concept of work involves force and displacement; meanwhile, the work-energy theorem relates the net work done on a body to the difference in its kinetic energy, calculated between two points on its trajectory. While none of these quantities or relations involves time explicitly, we know that the time available to accomplish work is often just as important as the amount of work itself. For example, sprinters in a race may have achieved the same velocity at the finish, therefore,...
Instantaneous Power01:22

Instantaneous Power

Instantaneous power is important in electrical circuits, mainly when dealing with sinusoidal input. Instantaneous power, denoted as p(t), results from the multiplication of the instantaneous voltage (v(t)) across an element and the instantaneous current (i(t)) flowing through it. This relationship adheres to the passive sign convention and represents a fundamental principle in electrical engineering.
Complex Power01:14

Complex Power

Power engineers have introduced the concept of complex power to determine the cumulative effect of parallel loads. This idea plays a crucial role in power analysis because it encompasses all the details related to the power consumed by a specific load.
Complex power is defined as the multiplication of the voltage and the complex conjugate of the current. The magnitude of this power, known as apparent power, is measured in volt-amperes (VA). Notably, the angle of the complex power equates to the...
Electrical Power01:07

Electrical Power

Electric power is the product of current and voltage, represented in units of joules per second, or watts. For example, cars often have one or more auxiliary power outlets with which you can charge a cell phone or other electronic devices. These outlets may be rated at 20 amps and 12 volts, so that the circuit can deliver a maximum power of 240 watts. Consider a 25 Watt bulb and a 60 Watt bulb. The conversion of electrical energy produces heat and light, while the kinetic energy lost by the...
Power Expended by a Constant Force00:57

Power Expended by a Constant Force

The relationship between work done and the time taken to do it can be explained using the concept of power. For example, several sprinters in a race may have the same velocity when they reach the finish line, therefore doing the same amount of work, but the winner does it in the least amount of time. Thus, power is defined as the rate of doing work. Since work can vary as a function of time, the average power is defined as the work done during a time interval, divided by the time interval.
Power and Energy01:12

Power and Energy

The power and energy delivered to an element are subjects of great significance in the field of electrical engineering. It is a well-known fact that a 100-watt light bulb emits more light than a 60-watt one. Therefore, power and energy calculations play a crucial role in the analysis of electrical circuits.
Power, defined as the time rate of expending or absorbing energy, is quantified in units called watts (W). The relation between power and energy is mathematically given as

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Using a Virtual Store As a Research Tool to Investigate Consumer In-store Behavior
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Using a Virtual Store As a Research Tool to Investigate Consumer In-store Behavior

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Purchasing power.

Alison Moore

    Nursing Standard (Royal College of Nursing (Great Britain) : 1987)
    |March 2, 2012
    PubMed
    Summary
    This summary is machine-generated.

    Nurses and General Practitioners (GPs) in Shropshire are collaborating on clinically-led commissioning to enhance healthcare services. Their active involvement ensures improvements despite financial challenges.

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    Area of Science:

    • Healthcare Management
    • Clinical Commissioning
    • Nursing Leadership

    Background:

    • Healthcare services face financial constraints.
    • Transitioning to new commissioning models is complex.
    • Effective collaboration between nurses and GPs is crucial for service delivery.

    Purpose of the Study:

    • To describe the implementation of clinically-led commissioning in Shropshire.
    • To highlight the active role of nursing in this new model.
    • To assess the potential for service improvement amidst financial pressures.

    Main Methods:

    • Qualitative description of a collaborative healthcare initiative.
    • Focus on the integration of nursing and General Practitioner (GP) roles.
    • Case study of service redesign in a specific region.

    Main Results:

    • Nurses and GPs are actively engaged in developing new commissioning arrangements.
    • Nursing participation is substantial and not merely symbolic.
    • The initiative aims to improve services within a challenging financial environment.

    Conclusions:

    • Active nursing involvement is key to successful clinically-led commissioning.
    • Collaborative models can drive service improvements despite economic difficulties.
    • The Shropshire initiative demonstrates a practical approach to integrated healthcare leadership.