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Related Concept Videos

Quality of Water01:19

Quality of Water

514
In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
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Quality Control01:05

Quality Control

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Quality control is one of the three cyclical quality assurance activities that help keep a system under statistical control. Typical quality control activities include creating quality control charts, conducting proficiency testing, and documenting and archiving results.
Quality control helps track data, visualize trends, and identify variations, making it easier to detect deviations that may affect the accuracy of an analysis. One way to do this is by generating a quality control chart, which...
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Quality Assurance01:19

Quality Assurance

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Quality assurance is the overarching term used to describe the activities employed to ensure the proper performance of a system. These activities can be classified into three categories: quality control, quality assessment, and internal corrective measures. Typically, these activities work cyclically: quality control is performed before and during the analysis, while quality assessment occurs during and after the investigation. Internal corrective measures are implemented based on the findings...
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Pulse amplitude and quality01:17

Pulse amplitude and quality

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Pulse amplitude is a crucial indicator of cardiac health because it provides valuable insights into the strength of left ventricular contractions and the overall uniformity of blood circulation within the vasculature. The strength of the pulse is directly related to the force with which the heart contracts and the volume of blood being pumped.
A weak or absent pulse may indicate reduced cardiac output or poor left ventricular contraction, which can be signs of cardiovascular dysfunction or...
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Testing Water Quality01:14

Testing Water Quality

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When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
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Improving Translational Accuracy02:07

Improving Translational Accuracy

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Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
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Related Experiment Video

Updated: Jan 24, 2026

Automated Gel Size Selection to Improve the Quality of Next-generation Sequencing Libraries Prepared from Environmental Water Samples
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Does quality improvement improve quality?

Mary Dixon-Woods1, Graham P Martin2

  • 1Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK.

Future Hospital Journal
|May 18, 2019
PubMed
Summary
This summary is machine-generated.

Quality improvement (QI) in healthcare shows mixed results due to inconsistent application and isolated efforts. Addressing these challenges is key to enhancing healthcare effectiveness and patient outcomes.

Keywords:
evaluationhealthcare organisationhospitalspatient safetyquality improvementresearch design/methods

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Area of Science:

  • Healthcare Management
  • Health Services Research
  • Medical Quality

Background:

  • Quality improvement (QI) is widely promoted for addressing healthcare problems, but its effectiveness evidence is inconsistent.
  • Challenges include variable fidelity in QI method application, limited professional expertise, and insufficient resources for change.
  • Many QI interventions are viewed as universal solutions, neglecting contextual factors and leading to isolated, unevaluated local efforts.

Purpose of the Study:

  • To analyze the mixed evidence regarding the effectiveness of quality improvement (QI) in healthcare.
  • To identify key challenges hindering successful QI implementation and impact.
  • To propose actionable strategies for improving the practice and outcomes of QI initiatives.

Main Methods:

  • Review of existing literature on quality improvement (QI) challenges and effectiveness.
  • Analysis of common pitfalls in QI project design, execution, and evaluation.
  • Identification of systemic issues contributing to variable QI outcomes.

Main Results:

  • QI effectiveness is hampered by inconsistent application of methods and lack of rigorous evaluation.
  • Small-scale, time-limited projects often lack the necessary expertise, power, or resources for significant change.
  • QI interventions are frequently treated as context-independent 'magic bullets,' and work is often isolated, hindering collective solutions and knowledge sharing.

Conclusions:

  • Improving QI requires addressing variable fidelity, enhancing professional capacity, and ensuring rigorous evaluation.
  • Moving beyond isolated, context-blind projects is crucial for effective healthcare improvement.
  • Four key strategies are proposed to enhance the overall effectiveness and impact of quality improvement efforts in healthcare.