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Fluid mosaic model of a cell membrane. The fluid mosaic model explains various characteristics regarding the structure of functional cell membranes.According to this biological model, there is a lipid bilayer (two molecules thick layer consisting primarily of amphipathic phospholipids) in which protein molecules are embedded.
The name opus vermiculatum literally means "worm-like work", and has been described as one of the most demanding and elaborate forms of mosaic work. [1] Usually opus vermiculatum is meant to put emphasis on the main design and foreground details of a work, using a smooth and flowing halo-effect.
Eventually, this style comes to refined maturity during the Middle Ages. The move towards completely two-dimensional representative images has already started, and although this mosaic implements the use of lights and darks, with shadows corresponding to the figures, there is a good indication as to what direction religious art is heading. [3]
The Mosaic of Virgil is a mosaic found on the site of the ancient Hadrumetum and currently preserved in Bardo National Museum in Tunis, where it constitutes one of its key pieces. It is currently the oldest portrait of the Latin poet Virgil .
An important application of mosaic crystals is in monochromators for x-ray and neutron radiation. The mosaicity enhances the reflected flux, and allows for some phase-space transformation. Pyrolitic graphite (PG) can be produced in form of mosaic crystals (HOPG: highly ordered PG) with controlled mosaicity of up to a few degrees.
[1] Orpheus mosaics are found throughout the Roman Empire, normally in large Roman villas. The scene normally shown is Orpheus playing his lyre, and attracting birds and animals of many species to gather around him. Orpheus was a popular subject in classical art, and was also used in Early Christian art as a symbol for Christ. [2]
The intact floor mosaic covers an area of 9 × 3 m and was laid down in 530. It depicts hunting and pastoral scenes with rich Middle Eastern flora and fauna. Mosaic floor from the church on Mount Nebo (baptistery, 530) The Church of Sts. Lot and Procopius was founded in 567 in Nebo village under Mount Nebo (now Khirbet Mukhayyat). Its floor ...
A formal grammar describes how to form strings from a language's vocabulary (or alphabet) that are valid according to the language's syntax. The linguist Noam Chomsky theorized that four different classes of formal grammars existed that could generate increasingly complex languages.