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Related Concept Videos

Virtual Work01:20

Virtual Work

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The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...
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Directional Relays01:25

Directional Relays

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Directional relays, essential for managing unidirectional fault currents, enhance the safety and efficiency of power systems. On power lines equipped with directional relays, faults downstream (to the right) of the current transformer typically cause the fault current to lag the bus voltage by approximately 90 degrees, known as the forward direction. In contrast, upstream (left-side) faults may result in the fault current leading the bus voltage by nearly 90 degrees, termed the reverse...
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Multimachine Stability01:25

Multimachine Stability

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Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
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Differential Relays01:20

Differential Relays

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Differential relays are used to protect generators, buses, and transformers by comparing electrical quantities at different points. When a fault occurs, the difference in current between the two points triggers the relay to operate, opening the circuit breaker. Under normal conditions, the current entering (i1) and leaving (i2) a generator are equal. When a fault occurs, however, these currents become unequal, and the difference current flows in the relay operating coil, causing the relay to...
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Pilot and Numeric Relaying01:21

Pilot and Numeric Relaying

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Pilot relaying is a type of differential protection used in power systems. It compares electrical quantities at the terminals of equipment via a communication channel instead of direct relay interconnection. This method is essential for transmission lines where the terminals are far apart, typically up to 80 km for lines with 69 to 115 kV ratings. Four types of communication channels are used for pilot relaying:
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Principle of Virtual Work: Problem Solving01:13

Principle of Virtual Work: Problem Solving

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The principle of virtual work is an essential concept in the field of mechanics and engineering. This is used to solve problems related to the equilibrium of a structure or system. It is based on the assumption that if a system is in equilibrium, the work done by all the forces during a virtual displacement is zero. This principle is applied by considering virtual displacements of the system and the corresponding work done by internal and external forces.
To apply the principle of virtual work,...
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Related Experiment Video

Updated: May 2, 2026

In vivo Application of the REMOTE-control System for the Manipulation of Endogenous Gene Expression
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Remotest working.

Jacqui Thornton

    Nursing Standard (Royal College of Nursing (Great Britain) : 1987)
    |March 6, 2014
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    Summary
    This summary is machine-generated.

    A nurse-led initiative provides vital healthcare to a remote South African community, improving access to screenings and treatment. This service enables earlier diabetes diagnosis, effectively preventing serious health complications.

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    Area of Science:

    • Community health nursing
    • Rural healthcare delivery
    • Public health interventions

    Background:

    • Limited access to healthcare services in remote Eastern Cape communities.
    • Challenges in patient mobility and consistent clinic attendance.
    • Need for proactive health screening and management in underserved populations.

    Purpose of the Study:

    • To describe a nurse-led service model for remote healthcare delivery.
    • To evaluate the impact of mobile health services on patient access and outcomes.
    • To highlight the role of such services in early disease detection and complication prevention.

    Main Methods:

    • Implementation of a community-based, nurse-led mobile health service.
    • Provision of health advice, screening, and referral pathways.
    • Focus on early diagnosis of conditions like diabetes.

    Main Results:

    • Essential healthcare services reached individuals unable to travel to traditional clinics.
    • Improved access to health advice, screening, and treatment referrals.
    • Earlier diagnosis of diabetes observed, facilitating timely intervention.

    Conclusions:

    • Nurse-led mobile services are effective in overcoming geographical barriers to healthcare.
    • Proactive screening and early diagnosis significantly reduce diabetes complications.
    • This model enhances health equity in remote and underserved regions.