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Related Concept Videos

Stability01:28

Stability

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The time response of a linear time-invariant (LTI) system can be divided into transient and steady-state responses. The transient response represents the system's initial reaction to a change in input and diminishes to zero over time. In contrast, the steady-state response is the behavior that persists after the transient effects have faded.
The stability of an LTI system is determined by the roots of its characteristic equation, known as poles. A system is stable if it produces a bounded...
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Stability of Equilibrium Configuration: Problem Solving01:13

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The stability of equilibrium configurations is an important concept in physics, engineering, and other related fields. In simple terms, it refers to the tendency of an object or system to return to its equilibrium position after being disturbed. The stability of an equilibrium configuration can be analyzed by considering the potential energy function of the system and examining its behavior near the equilibrium point.
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What is Homeostasis?01:16

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Maintaining homeostasis requires that the body continuously maintain its internal conditions. Each physiological condition has a particular set point, from body temperature to blood pressure to levels of certain nutrients. A set point is the physiological value around which the normal range fluctuates. A normal range is a restricted set of values that is optimally healthful and stable. For example, the set point for normal human body temperature is approximately 37°C (98.6°F).
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Oscillations about an Equilibrium Position01:04

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Stability is an important concept in oscillation. If an equilibrium point is stable, a slight disturbance of an object that is initially at the stable equilibrium point will cause the object to oscillate around that point. For an unstable equilibrium point, if the object is disturbed slightly, it will not return to the equilibrium point. There are three conditions for equilibrium points—stable, unstable, and half-stable. A half-stable equilibrium point is also unstable, but is named so...
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Positive and Negative Feedback Loops01:18

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Animal organs and organ systems constantly adjust to internal and external changes through a process called homeostasis ("steady state"). Examples of these changes include regulation of the level of glucose or calcium in the blood or internal responses to external temperatures. Homeostasis requires  maintaining an internal dynamic equilibrium:
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Homeostatic Imbalance01:10

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Homeostasis is the maintenance of a stable internal environment within the body, which is crucial for the proper functioning of cells, tissues, organs, and organ systems. The body has various control mechanisms that work together to regulate various physiological parameters such as temperature, blood pressure, pH balance, and fluid balance, to name a few. These control mechanisms are based on feedback loops that can be either positive or negative.
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Evaluating Postural Control and Lower-extremity Muscle Activation in Individuals with Chronic Ankle Instability
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Physiological stability: a concept analysis.

Valerie Lebel1, Marie Alderson1, Marilyn Aita1

  • 1Faculty of Nursing, University of Montreal, Quebec, Canada.

Journal of Advanced Nursing
|April 3, 2014
PubMed
Summary
This summary is machine-generated.

Physiological stability is defined as a dynamic state where an organism maintains key parameters within narrow ranges despite disruptions. This concept analysis clarifies its meaning and importance in nursing for evaluating interventions and client well-being.

Keywords:
concept analysisnursingphysiological parametersphysiological stability

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Area of Science:

  • Physiology
  • Nursing Science

Background:

  • Physiological stability is a widely used but poorly defined concept in scientific literature.
  • Lack of a clear operational definition hinders consistent application and understanding.

Purpose of the Study:

  • To conduct a concept analysis of physiological stability.
  • To establish a clear operational definition and identify theoretical underpinnings.

Main Methods:

  • Utilized Walker and Avant's 8-step concept analysis method.
  • Conducted a literature review of articles published between 2000-2012 using databases like CINAHL, Medline, PsycINFO, and ERIC.

Main Results:

  • Defined physiological stability as a dynamic state of maintaining physiological parameters within narrow ranges amidst disruptive elements.
  • Identified key attributes, antecedents, and consequences of physiological stability.
  • Characterized it as an adaptive response reflecting overall physiological balance.

Conclusions:

  • Proposes an operational definition for physiological stability based on theoretical foundations.
  • Highlights the concept's significance in nursing for assessing intervention effectiveness and client health outcomes.