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Related Concept Videos

Review and Preview01:10

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In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
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Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
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Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
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The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
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The muscles that move the head are a dynamic and complex group of structures that work together to facilitate a wide range of head movements, including rotation, flexion, extension, and lateral bending.
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The abdominal wall encircles the abdominal cavity, providing flexible protection and shielding the internal organs from harm. It is bordered at the top by the xiphoid process and costal margins, at the back by the vertebral column, and at the bottom by the pelvic bones and inguinal ligament. The abdominal wall is divided into two regions — the anterolateral and posterior regions.
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Related Experiment Video

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Author Spotlight: Recent Advancements in Reoperative Foregut Surgery
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One-Muscle Strabismus Surgery: A Review.

Jake Gurland, Aldo Vagge, Leonard B Nelson

    Journal of Pediatric Ophthalmology and Strabismus
    |June 19, 2018
    PubMed
    Summary

    Unilateral rectus muscle surgery effectively treats small to moderate horizontal deviations in strabismus patients. This approach offers safety, efficiency, and preserves other muscles for potential future procedures.

    Area of Science:

    • Ophthalmology
    • Pediatric Ophthalmology
    • Strabismus Surgery

    Background:

    • Management of horizontal deviations in strabismus is challenging.
    • One-muscle surgery for comitant strabismus is controversial due to concerns of undercorrection and ocular incomitance.

    Purpose of the Study:

    • To evaluate the safety and efficacy of unilateral rectus muscle surgery for small to moderate angle horizontal deviations.
    • To present unilateral rectus muscle surgery as a primary treatment option for esotropia.

    Main Methods:

    • Review of recent literature on unilateral rectus muscle surgery.
    • Analysis of outcomes for patients with small to moderate angle horizontal deviations.

    Main Results:

    • Unilateral rectus muscle surgery is a safe and effective procedure for small and moderate angle horizontal deviations.

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  • Advantages include operating on one eye, reduced operative time, lower cost, and preservation of other muscles.

    • Conclusions:

    • Unilateral rectus muscle surgery should be considered a primary approach for treating small to moderate angle esotropia.
    • Further large-scale studies are warranted to confirm these findings.