Showing 1,721 - 1,740 results of 1,855 for search 'Chirawa~', query time: 1.79s Refine Results
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    Theoretical study on the conformation-dependent charge transfer of the excited state of dopamine by Huan An, Asiya, Gulmire Yaermaimaiti, Bumaliya Abulimiti, Mei Xiang, Xiaoning Wang

    Published 2025-01-01
    “…First, the stable configuration of the ground state of the molecule was optimized, and the potential energy of the ionic state was scanned to select all conformations, except for the chiral problem. Subsequently, the CAM-B3LYP/aug-cc-pVTZ method was used to excite the molecule, and the excitation types of the first five excited states of the molecule were discussed. …”
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  5. 1725

    Topological bound states in the continuum in a non-Hermitian photonic system by Luo Yihao, Sun Xiankai

    Published 2025-01-01
    “…These applications may include optical delay and storage, highly robust optical devices, high-sensitivity sensing, and chiral mode switching.…”
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  6. 1726

    Enantioselective Potentiometric Membrane Electrodes Based on Antibiotics for the Determination of L- and D-Glyceric Acids by Raluca-Ioana Stefan-van Staden, R'afat M. Nejem, Jacobus Frederick van Staden, Hassan Y. Aboul-Enein

    Published 2011-01-01
    “…Enantioselective, potentiometric membrane electrodes based on carbon paste modified with antibiotics as chiral selectors, vancomycin, and teicoplanin were designed for the assay of L- and D-GA, respectively, in the concentration ranges of 10−9–10−7 and 10−4–10−2 moL/L with very low detection limits (1.5 × 10−10 moL/L for L-GA and 1.6 × 10−4  moL/L for D-GA, resp.). …”
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  7. 1727

    Dispositivos de seguridad y sexualidad en la frontera sur de México: biopolíticas en mujeres transgénero centroamericanas by Ernesto Antonio Zarco Ortiz, Karla Jeanette Chacón Reynosa

    Published 2020-01-01
    “…Este artículo expone los dispositivos migratorios transfronterizos en el desplazamiento de mujeres transgénero centroamericanas en su paso por la frontera sur de México: Tapachula, Chiapas. Tales desplazamientos analizados desde el enfoque de la experiencia vivida, develan técnicas de distinción, normalización y exclusión sobre los cuerpos transgénero, que son efectuadas a través de dispositivos de seguridad (pasaportes, permiso de tránsitos, visa, situación de protección y refugio) y sexualidad regulados por los Estados-nación. …”
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  8. 1728

    Enantioselective construction of silicon-stereogenic vinylsilanes from simple alkenes by Kailin Yin, Jinyu Zhang, Deng Pan, Shu-Han Chen, Song Chen, Yufeng Shi, Genping Huang, Dongbing Zhao

    Published 2025-01-01
    “…The practicality of this method is further exemplified by the diverse downstream transformations of these enantioenriched silicon-stereogenic vinylsilanes leveraging the olefin functionality and the leaving group nature of the aryl substituent on silicon as well as the development of chiral π-conjugated double bond systems.…”
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  9. 1729

    Iron-catalysed stereoselective NH transfer enables dynamic kinetic resolution of sulfoxides by Fang-Xu Fan, Hui Xu, Shi-Xiong Tang, Yanfeng Dang, Fei Wang

    Published 2025-02-01
    “…This approach is distinct from the existing methods by avoiding protecting group manipulations and/or the use of chiral substrates. Computational studies on the NH imidation reaction suggest the involvement of an iron-aminyl radical intermediate, and its reaction with sulfoxide proceeds through a synchronous nucleophilic addition of sulfoxide to nitrogen center and ligand-to-metal single electron transfer process to form the N–S bond. …”
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  10. 1730

    Torsional four-fermion interaction and the Raychaudhuri equation by Shibendu Gupta Choudhury, Sagar Kumar Maity, Amitabha Lahiri

    Published 2024-12-01
    “…Using simplified yet reasonable assumptions, we establish that the contribution can be attractive or repulsive depending on how torsion couples with different chiralities. Also, the interaction starts to dominate as the collapse proceeds, accelerating or decelerating the collapse depending on the relative signs of the geometrical interaction between different species of fermions.…”
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