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Facial bilateral symmetry is typically defined as fluctuating asymmetry of the face comparing random differences in facial features of the two sides of the face. [4] The human face also has systematic, directional asymmetry : on average, the face (mouth, nose and eyes) sits systematically to the left with respect to the axis through the ears ...
Fluctuating asymmetry (FA) is often considered to be the product of developmental stress and instability, caused by both genetic and environmental stressors. The notion that FA is a result of genetic and environmental factors is supported by Waddington's notion of canalisation, which implies that FA is a measure of the genome's ability to successfully buffer development to achieve a normal ...
The reciprocal lattices (dots) and corresponding first Brillouin zones of (a) square lattice and (b) hexagonal lattice. In mathematics and solid state physics, the first Brillouin zone (named after Léon Brillouin) is a uniquely defined primitive cell in reciprocal space.
The face is the front of an animal's head that features the eyes, nose and mouth, and through which animals express many of their emotions. [ 1 ] [ 2 ] The face is crucial for human identity , and damage such as scarring or developmental deformities may affect the psyche adversely.
Facial symmetry has been shown to be considered attractive in women, [186] [187] and men have been found to prefer full lips, [188] high forehead, broad face, small chin, small nose, short and narrow jaw, high cheekbones, [39] [189] clear and smooth skin, and wide-set eyes. [64]
In 1981, Bernhard Flury and Hans Riedwyl suggested "asymmetrical" Chernoff faces; [3] since a face has vertical symmetry (around the y axis), the left side of the face is identical to the right and is basically wasted space – a point also made by Tufte. [4]
By RYAN GORMAN Multi-platinum rapper Eminem's look has not changed much over the years, but he certainly has aged. The previously baby-faced lyricist appeared at the Wall Street Journal's ...
[42] [43] [44] However Langlois, Roggman and Musselman [2] found that when faces were divided down the middle two perfectly symmetrical faces could be created from the two halves, a "left face" consisting of the left half of the face and its mirror image, and a "right face" constructed in a similar manner. These two perfectly symmetrical faces ...