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Related Concept Videos

What is Variation?01:14

What is Variation?

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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.
Range: The range is the difference between its maximum and...
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Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
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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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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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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.
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Focused Assessment with Sonography for Trauma FAST Exam: Image Acquisition
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Temporal Variations in Pediatric Trauma: Rationale for Altered Resource Utilization.

Eric M Groh, Paul L Feingold, Barry Hashimoto

    The American Surgeon
    |July 9, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Pediatric trauma cases increase during evenings, weekends, and summer months. Hospitals should adjust staffing and resources to meet this predictable rise in trauma volume.

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    Area of Science:

    • Pediatric Trauma Care
    • Public Health Surveillance
    • Emergency Medicine

    Background:

    • Trauma significantly impacts pediatric morbidity and mortality.
    • Understanding temporal patterns in pediatric trauma is crucial for resource allocation.
    • Previous characterization of temporal variations in pediatric trauma is limited.

    Purpose of the Study:

    • To analyze temporal variations in pediatric trauma incidence.
    • To identify peak times and seasons for pediatric trauma injuries.
    • To inform hospital resource allocation and staffing.

    Main Methods:

    • Retrospective analysis of pediatric trauma patients (2011-2015).
    • Data included date/time of injury, injury type (blunt/penetrating), and disposition.
    • Heatmaps and mixed Poisson regression used to assess temporal trends.

    Main Results:

    • Pediatric trauma rates were significantly higher between 1800 and 0100 hours.
    • Trauma incidence increased on weekends compared to weekdays.
    • Higher rates of pediatric trauma were observed from May to August compared to November to February.

    Conclusions:

    • Pediatric trauma exhibits distinct temporal patterns, with peaks in evenings, weekends, and summer.
    • Hospitals should prepare for increased patient volume during these periods.
    • Optimized staffing and resource availability in emergency departments, operating rooms, and ICUs are recommended.