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Related Concept Videos

Lumber Defects01:23

Lumber Defects

Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
Imperfections in Crystal Structure: Non-Stoichiometric Defects01:29

Imperfections in Crystal Structure: Non-Stoichiometric Defects

Non-stoichiometric defects refer to a type of defect in the crystal structure of a compound where the ratio of its constituent elements deviates from the ideal stoichiometric ratio. There are two main types of non-stoichiometric defects: metal excess defects and metal deficiency defects.Metal excess defects occur when there is a slight surplus of metal ions than what is required by the stoichiometric ratio of the compound. For example, heating a sodium chloride crystal in sodium vapor results...
Imperfections in Crystal Structure: Point, Line and Plane Defects01:25

Imperfections in Crystal Structure: Point, Line and Plane Defects

A perfect crystal, in theory, has a uniform structure with the same unit cell and lattice points throughout. However, any deviation from this periodic arrangement is known as an imperfection or defect. These defects can be categorized into three types: point, line, and plane defects.Point defects occur when there is a deviation from the ideal due to missing atoms, displaced atoms, or additional atoms. These imperfections might occur due to imperfect packing during crystallization or because of...
Prosopagnosia01:24

Prosopagnosia

Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
Imperfections in Crystal Structure: Stoichiometric Point Defects01:26

Imperfections in Crystal Structure: Stoichiometric Point Defects

Schottky defects arise when some lattice points in a crystal, such as those in NaCl, remain unoccupied, creating lattice vacancies without disturbing the overall electrical neutrality of the crystal. This defect is common in ionic crystals where the positive and negative ions are similar in size, as seen in sodium chloride and cesium chloride. The presence of Schottky defects enables the crystal to conduct electricity to a small extent through an ionic mechanism. Electric fields cause nearby...
Plastic Deformations of Members with a Single Plane of Symmetry01:21

Plastic Deformations of Members with a Single Plane of Symmetry

When a structural member undergoes plastic deformation due to bending, it is crucial to understand the position of the neutral axis and the stress distribution. This member, characterized by a single plane of symmetry, exhibits a uniform stress distribution, with negative stress above the neutral axis and positive stress below. Notably, the neutral axis does not align with the centroid of the cross-section. This misalignment is typical in cases where the cross-section is not rectangular or...

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Updated: Jun 13, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
08:03

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model

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The ugly face: deformity not defectiveness.

I R Munro

    Canadian Family Physician Medecin De Famille Canadien
    |May 15, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Congenital facial deformities cause severe social and psychological handicaps. Surgical advancements in facial and cranial osteotomies offer corrective solutions for these conditions.

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    Area of Science:

    • Plastic Surgery
    • Craniofacial Surgery
    • Medical Genetics

    Background:

    • Congenital facial deformities can lead to profound psychosocial challenges.
    • Misconceptions about intellectual capacity are often wrongly associated with severe facial deformities.
    • Affected individuals face significant social and psychological barriers due to their appearance.

    Purpose of the Study:

    • To highlight the severe psychosocial impact of congenital facial deformities.
    • To introduce the potential of surgical interventions for correcting these deformities.
    • To advocate for a better understanding and support for affected individuals.

    Main Methods:

    • Review of cases with severe congenital facial deformities.
    • Discussion of the psychosocial implications and misdiagnoses.
    • Exploration of surgical techniques, including major facial and cranial osteotomies.

    Main Results:

    • Facial deformities can result in unjustified labeling as mentally defective.
    • Patients experience substantial social and psychological handicaps.
    • Surgical correction of these deformities is becoming increasingly feasible.

    Conclusions:

    • Major facial and cranial osteotomies present a viable surgical approach.
    • Corrective surgery can significantly improve the quality of life for affected individuals.
    • Addressing both the physical deformities and associated psychosocial issues is crucial.