Mostrando 1,261 - 1,280 Resultados de 4,830 Para Buscar '"quantum mechanics"', tiempo de consulta: 0.25s Limitar resultados
  1. 1261
    “…Accurately computing the geometry and energy of host–guest and protein–ligand interactions requires a physically accurate description of the forces in action. Quantum mechanics can provide this accuracy but the calculations can require a prohibitive quantity of computational resources. …”
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  2. 1262
    “…These problems may be reduced by using quantum-mechanical calculations. A method has therefore been developed to combine quantum-mechanical calculations with joint crystallographic refinement against X-ray and neutron data. …”
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  3. 1263
  4. 1264
  5. 1265
    “…In this work, we present a quantum mechanical investigation, based on the self-consistent charge density functional tight-binding (SCC-DFTB) method, of the functionalization with silane-type ligands (TETT) of a spherical TiO(2) nanoparticle of realistic size (2.2 nm containing 700 atoms) to create an efficient nanosystem for simultaneous photodynamic therapy and drug transport. …”
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  6. 1266
    por Lee, Honyeon, Kim, Dongjin
    Publicado 2022
    “…A simulation of quantum dot (QD) energy levels was designed to reproduce a quantum mechanical analytic method based on perturbation theory. …”
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  7. 1267
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  14. 1274
    “…Its mechanism is currently controversial and in order to resolve the catalytic mechanism of these enzymes, a quantum mechanics/molecular mechanics (QM/MM) study was performed on the demethylation of the N(1)-methyladenine fragment by AlkB repair enzymes. …”
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  15. 1275
    “…Combining multi-level quantum mechanics theories and molecular mechanics with an explicit water model, we investigated the ring opening process of guanine damage by hydroxyl radical in aqueous solution. …”
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  16. 1276
  17. 1277
    “…We investigate the effect of replacing Thr252 by methoxythreonine (MeO-Thr) on this protonation reaction (coupling) and on the competing formation of the ferric resting state and H(2)O(2) (uncoupling) by combined quantum mechanical/molecular mechanical (QM/MM) methods. …”
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  18. 1278
    “…By combining quantum-mechanical analysis and statistical survey of peptide/protein structure databases we here report a thorough investigation of the conformational dependence of the geometry of peptide bond, the basic element of protein structures. …”
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  19. 1279
  20. 1280
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