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Related Concept Videos

Analgesia and Pain Management01:25

Analgesia and Pain Management

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Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
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What is Variation?01:14

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Apart from the measures of central tendency, distribution, outliers, and the changing characteristics of data with time, an important characteristic of any data set is its variation or spread. In some data sets, the data values are concentrated closely near the mean; in others, the data values are more widely spread out from the mean.
The range, standard deviation, standard error, and variance are the different measures of variation.
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Variation01:19

Variation

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An important characteristic of any set of data is the variation in the data. In some data sets, the data values are concentrated closely near the mean; in other data sets, the data values are more widely spread out from the mean. The most common measure of variation, or spread, is the standard deviation, which is the square root of variance.
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Conservative Site-specific Recombination and Phase Variation02:53

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Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
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Variation of Atmospheric Pressure01:18

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Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
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Comparing Copy Number Variations and SNPs02:26

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Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
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Related Experiment Video

Updated: Feb 13, 2026

Author Spotlight: Quantifying Pain Experience – An Illustrative Approach Using the Pain Body Diagram
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Pain Management: Time to Minimize Variations in Practice.

Parag Bharadwaj1,2, Brynn E Sheehan3,4, Sunita Dodani5,6

  • 1Palliative Care, Sentara Healthcare, Norfolk, VA, USA.

Palliative Care
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Palliative care pain management shows significant variation. Developing standardized strategies is crucial to prevent patient distress and improve end-of-life care.

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Area of Science:

  • Palliative Care Medicine
  • Pain Management
  • Clinical Practice Variation

Background:

  • Effective pain management is a cornerstone of quality palliative care.
  • Significant inconsistencies exist in how pain is managed for patients receiving palliative care.
  • These variations can lead to suboptimal patient outcomes and increased suffering.

Purpose of the Study:

  • To highlight the ongoing variability in palliative care pain management.
  • To emphasize the need for developing targeted strategies to address these inconsistencies.
  • To advocate for improved pain control to alleviate patient distress.

Main Methods:

  • This study is a conceptual analysis and review of current practices.
  • It synthesizes existing literature on pain management protocols in palliative care.
  • Identifies key areas of variation in clinical decision-making.

Main Results:

  • Substantial heterogeneity in pain assessment tools and treatment algorithms was observed.
  • Lack of adherence to evidence-based guidelines contributes to management disparities.
  • Patient-reported outcomes are negatively impacted by inconsistent pain relief.

Conclusions:

  • Urgent development and implementation of standardized pain management strategies are required in palliative care.
  • Addressing practice variations is essential for reducing patient distress.
  • Further research should focus on best practices for equitable pain management.