Called a double aortic arch, the branch forms a ring around the airway, acting almost like a vise.
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Lutkenhaus discovered, among other things, that the FtsZ protein forms a ring around the division plane in bacteria and is thus a key factor in bacterial cell division.
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The terminus loop of the Inner West Light Rail line forms a ring around the entire park using ramps on both eastern and western edges to access the train station concourse.
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The structure of the PPR has been resolved. It folds into a helix-turn-helix structure similar to those found in the tetratricopeptide repeat. Several repeats of the protein forms a ring around a single-strand RNA molecule in a sequence-sensitive way reminiscent of TAL effectors.
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Copulation and reproduction are separate processes in earthworms. The mating pair overlap front ends ventrally and each exchanges sperm with the other. The clitellum becomes very reddish to pinkish in colour. Sometime after copulation, long after the worms have separated, the clitellum (behind the spermathecae) secretes material which forms a ring around the worm.
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The Irvine New Town Trail passes through a lot of the surrounding areas of Irvine; it forms part of the British National Cycle Network with routes 7 and 73 forming part of the route. The route forms a ring around the town and passes through Kilwinning, Bourtreehill, Girdle Toll and Dreghorn and passes through the town centre of Irvine.
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The Irvine New Town Trail passes through Girdle Toll, it forms part of the British National Cycle Network with routes 7 and 73 forming part of the route. The route forms a ring around the town and passes through Eglinton Country Park, Kilwinning, Bourtreehill, Dreghorn and passes through the town centre of Irvine. It connects to route 7 which is used by locals cycling/walking to nearby Troon and Ayr.
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Illustration comparing nonstenotic mitral valve insufficiency to mitral valve stenosis. The mitral valve apparatus comprises two valve leaflets, the mitral valve annulus, which forms a ring around the valve leaflets, and the papillary muscles, which tether the valve leaflets to the left ventricle and prevent them from prolapsing into the left atrium. The chordae tendineae are also present and connect the valve leaflets to the papillary muscles. Dysfunction of any of these portions of the mitral valve apparatus can cause regurgitation.
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The first U-Bahn line in Hamburg was begun in 1906 by the Hamburger Hochbahn. It forms a ring around the inner city. A station was also built near the Landungsbrücken in the slope of the Stintfang hill with 26m NN, nearby [Bismarck Monument, designed 1906 by the architects, Johann Emil Schaudt and Walter Puritz. The station, which is called Landungsbrücken today, was built semi-open, which means that the western end is roofed with a concrete slab and the eastern end is left open.
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Most rocks that outcrop on the surface on Bahrain Island and the Huwar Islands date to the Eocene in the Cenozoic. The rimrock of Eocene limestone forms a ring around the main island, with cliffs up to 30.5 meters (100 feet) tall and wind erosion features are common. An angular unconformity separates middle Eocene rocks from sandier Miocene rocks. The Rus Formation is 56.1 meters thick, encompassing the Ad Damman area in Saudi Arabia and is exposed in central Bahrain as limestone with chert and chalk layers along with quartz geodes.
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Though Mps1 is docked in the outer kinetochore, it is still able to localize within the inner kinetochore and phosphorylate Spc105 because of flexible hinge regions on Ndc80. However, the mechanical switch model proposes that end-on attachment of a microtubule to the kinetochore deactivates the SAC through two mechanisms. The presence of an attached microtubule increases the distance between the Ndc80 CH domain and Spc105. Additionally, Dam1/DASH, a large complex consisting of 160 proteins that forms a ring around the attached microtubule, acts as a barrier between the two proteins.
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Lallemand is a small lunar impact crater that lies near the western limb of the Moon, in a region where the visibility is affected by libration effects. Because of its location, when viewed from the Earth the crater is viewed nearly from the side, limiting the amount of detail that can be seen. It lies in the northeast part of a mountain range named the Montes Rook that forms a ring around the enormous Mare Orientale impact basin. To the northeast is the Lacus Autumni and to the northwest lies the Lacus Veris, both forming small lunar maria along the sides of the range.
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The line forms a ring around the edge of the dense central areas of Guangzhou, allowing circumferential and tangential traffic to avoid transferring at the congested city center stations. As such, 19 of the line's 32 stations plan to have transfers with other lines. In addition, the line will act as a distributor for the numerous Pearl River Delta Metropolitan Region intercity railways, and the suburban radial subway lines (Guangzhou Metro Line 14, Line 21, Line 22 and Foshan Metro Line 11) that are expected to terminate at stations on Line 11. Due to the large number of connections and destinations, the line is expected to have a ridership of over 1.2 million passengers per day.
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The Ring Road, extending from the Korle Lagoon in the west, north to Kwame Nkrumah Circle, following east to the juncture of Independence Avenue, and continuing on to Osu, forms a ring around the oldest districts of Accra, and separates central Accra from the outlying suburbs. Central Accra includes the CBD, which consists of the historic districts of Usshertown, Tudu, Victoriaborg, West Ridge, and East Ridge, as well as the historic residential districts of Jamestown, Adabraka, Asylum Down, North Ridge and Christiansborg/Osu. Although satellite business districts such as the Airport City have been established across the city, Central Accra remains the administrative and cultural centre of Accra, hosting government ministries, hotels, businesses, and financial institutions. Central Accra's principal attractions include the Kwame Nkrumah Mausoleum, the National Museum, Independence Square, the National Theatre, and the Ohene Djan Stadium.
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