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Related Concept Videos

Buffer Effectiveness02:19

Buffer Effectiveness

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Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes in pH relies on the presence of appreciable amounts of its conjugate weak acid-base pair. When enough strong acid or base is added to substantially lower the concentration of either member of the buffer pair, the buffering action within the solution is compromised.
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Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
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All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
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Self-awareness is a psychological state in which the individual becomes the focal point of their attention. This inward focus transforms the self into an object of contemplation and assessment, influencing how individuals perceive their actions and their alignment with personal and societal standards.Triggers and Contexts for Self-AwarenessSelf-awareness can be activated by external stimuli that make individuals visually or audibly aware of themselves, such as mirrors, cameras, or recordings.
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Effects of feedback01:24

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Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
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An understanding of the solvating effect helps rationalize the relation between solvation and acidity of the compound. In addition, this also explains the relative stability of conjugate bases for compounds with different pKa values. This lesson details, in-depth, the principle of solvating effects. The strength of an acid and the stability of its corresponding conjugate base are determined using pKa values. This observed relationship is a consequence of solvation, which is the interaction...
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Related Experiment Video

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A Cost Effective and Adaptable Scratch Migration Assay
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Cost-Effectiveness Research in Anesthesiology.

Bijan J Teja1, Tori N Sutherland2, Sheila R Barnett1

  • 1From the Department of Anesthesia, Critical Care and Pain Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts.

Anesthesia and Analgesia
|March 24, 2018
PubMed
Summary
This summary is machine-generated.

Multidisciplinary perioperative interventions, like accelerated recovery pathways and delirium prevention bundles, are most cost-effective. More research is needed to assess the cost-effectiveness of anesthesiology interventions, especially intraoperative ones.

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Area of Science:

  • Anesthesiology
  • Perioperative Medicine
  • Health Economics

Background:

  • Anesthesiologists increasingly select interventions based on cost-effectiveness.
  • Limited data exists on comparative cost-effectiveness of various anesthesiology strategies.
  • Perioperative interventions aim to reduce costs and improve patient outcomes.

Purpose of the Study:

  • To systematically review cost-effectiveness analyses of anesthesiology and perioperative medicine interventions.
  • To identify the most cost-effective interventions in anesthesiology and perioperative care.
  • To highlight gaps in the literature regarding cost-effectiveness of perioperative interventions.

Main Methods:

  • Systematic literature review of English language articles from 1980-2014.
  • Inclusion criteria focused on cost-effectiveness analyses relevant to anesthesiology.
  • Exclusion of critical care, pediatric anesthesiology, and non-anesthesiologist interventions.

Main Results:

  • Only 28 of >5000 analyses met inclusion criteria for anesthesiology and perioperative medicine.
  • Multidisciplinary interventions (8/8) were most cost-effective, including recovery pathways and delirium prevention.
  • Intraoperative measures (3/5) and MRSA decolonization (2/2) showed cost-effectiveness; autologous blood donation (5/7) and cell salvage (2/2) did not.

Conclusions:

  • A significant paucity of cost-effectiveness literature exists in anesthesiology, particularly for intraoperative and multidisciplinary interventions.
  • Multidisciplinary perioperative optimization interventions appear most cost-effective.
  • Anesthesiologists should lead collaborative efforts to conduct more rigorous cost-effectiveness analyses in perioperative medicine.