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Related Concept Videos

Lazarus's Cognitive Appraisal Theory01:20

Lazarus's Cognitive Appraisal Theory

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Cognitive psychologist Richard Lazarus proposed the cognitive-mediational theory of emotions, which emphasizes how individuals' assessments of stressors significantly affect their experience of stress. According to Lazarus, the stress response is determined by a two-step appraisal process: primary appraisal and secondary appraisal. These cognitive appraisals help individuals evaluate the potential impact of a stressor and determine the adequacy of their coping resources.
Primary Appraisal:...
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Restless Leg Syndrome and Night Terrors01:27

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Restless Leg Syndrome (RLS), also known as Willis-Ekbom disease, is a neurological disorder characterized by an uncontrollable urge to move the legs due to uncomfortable sensations. These sensations typically occur during periods of rest or inactivity, particularly when lying down or sitting, and can severely disrupt sleep.
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Altered States of Awareness01:06

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Altered states of consciousness represent significant deviations from one's normal mental state. These deviations can range from subtle changes in awareness to profound transformations in perception, thought processes, and sensory experiences. Altered states of consciousness can be triggered by various factors, including drug use, meditation, hypnosis, illness, or even intense fatigue.
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Rise of Liquid in a Capillary Tube01:18

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When very thin cylindrical tubes, called capillaries, are dipped in a liquid, the liquid rises or falls in the tube compared to the surrounding liquid. This phenomenon is called capillary action. Capillary action occurs due to the combination of two opposing forces: the cohesive forces of the liquid, which cause it to stick to itself and form a rounded shape, and the adhesive forces between the liquid and the walls of the container, which cause the liquid to be attracted to the container walls.
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Cognitive Theories: Lazarus Mediational Theory of Emotion01:17

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Richard Lazarus' cognitive mediational theory highlights the pivotal role of cognitive appraisal in shaping emotional responses. According to this theory, the evaluation of a stimulus — based on personal values, goals, beliefs, and expectations — mediates the emotional response. This appraisal process is immediate and often occurs unconsciously, influencing the intensity and nature of the resulting emotion.
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An object falling without any air resistance under the influence of gravitational force is said to be in free-fall. For free-falling bodies, the acceleration due to gravity is constant, irrespective of their mass. Free-fall is experienced not only by objects falling downward, but also by all objects whose motion is influenced by gravitational force alone. The dynamics of free-fall motion can be calculated using kinematic equations of motion, since free-fall acceleration is constant.
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In vivo Imaging of Intact Drosophila Larvae at Sub-cellular Resolution
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Risen Alive: The Lazarus Phenomenon.

Waqar Haider Gaba1, Shahad Abobakar El Hag1, Shaima Mustafa Bashir1

  • 1Internal Medicine Department, Sheikh Khalifa Medical City, Abu Dhabi, UAE.

Case Reports in Critical Care
|February 25, 2022
PubMed
Summary
This summary is machine-generated.

The Lazarus phenomenon, a delayed return of spontaneous circulation after cardiopulmonary resuscitation (CPR) cessation, is rare. Patients require continued observation post-CPR before death is confirmed to prevent misdiagnosis.

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Area of Science:

  • Medicine
  • Cardiology
  • Critical Care Medicine

Background:

  • The Lazarus phenomenon, or autoelection, is the spontaneous return of circulation after cessation of cardiopulmonary resuscitation (CPR).
  • This rare event is often underreported in medical literature.

Observation:

  • A 25-year-old woman, admitted for complications post-bariatric surgery, experienced cardiac arrest on day 16.
  • She underwent 73 minutes of continuous CPR without response, leading to a declaration of death.
  • Fifty minutes after CPR cessation, family noted eye movements, prompting resuscitation resumption.

Findings:

  • The patient survived after resuscitation was restarted.
  • Significant neurological deficits resulted from prolonged anoxic brain injury.
  • Full neurological, cognitive, and motor recovery was not achieved during her ten-week hospital stay.

Implications:

  • This case highlights the critical need for continued patient observation after CPR cessation.
  • Extended monitoring may be necessary before confirming death, especially in cases with prolonged resuscitation efforts.
  • Healthcare providers should consider the Lazarus phenomenon in post-CPR patient management protocols.