Mostrando 261 - 280 Resultados de 13,004 Para Buscar '"The Crown"', tiempo de consulta: 0.14s Limitar resultados
  1. 261
    “…A series of modified calix[4]crown‐6 derivatives was synthesized to chelate the heavy group 2 metal barium, which serves as a non‐radioactive surrogate for radium‐223/‐224; radionuclides with promising properties for radiopharmaceutical use. …”
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    por Correa, Waldo H., Scott, Janet L.
    Publicado 2004
    “…A benign and efficient synthesis of chiral macrocyclic ‘aza-crown’ ethers of varying ring size is reported. The synthesis involves a Schiff base condensation of ether linked dialdehydes of varying chain length and (1R,2R)-(–)-1,2-diaminocyclohexane under mild conditions to yield the macrocycles, which are subsequently reduced to yield the diamino analogues.…”
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  7. 267
    “…The length and width of the crowns and the crown units (i.e., trigonid and talonid) were measured. …”
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  8. 268
    “…In total, 90 crowns were loaded centrally in the occlusal fossa until fracture. …”
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    “…In this case report, we present the contemporary use of piezosurgery for crown lengthening procedure.…”
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    “…Triconodontidae are considered the first carnivorous crown mammals. A virtual reconstruction of the masticatory cycle in the Late Jurassic Priacodon showed that triconodontid dental function is characterized by precise cutting on elongated crests. …”
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    “…However, these remaining teeth do not always have sufficient alveolar bone support, and sometimes fabricated connected crowns are applied. This study evaluated the influence of crown material, crown thickness, and alveolar bone resorption on the stress distribution within the abutment teeth of connected crowns. …”
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