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Nonlinear Dynamics - The reflection of time-harmonic waves in a waveguide with a nonlinear boundary stiffness is considered with applications to rods and beams. Incident waves at frequencies that... 相似文献
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Mehrdad Rezaei Khosrou Abdi Rassoul Dinarvand Sanaz Vosough-Ghanabri Mohsen Amini 《Chromatographia》2009,70(9-10):1491-1494
A gas chromatography-mass spectrometry method for determination of naltrexone in plasma is presented. The method is based on pre-column derivatization of analyte to trimethylsilyl derivative of naltrexone. The analyte and internal standard were extracted from plasma by liquid–liquid extraction. Validation of the method has been studied in the concentration range 1–50 ng mL−1.
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S. Wali Abdi 《School science and mathematics》1995,95(2):108-109
Book reviewed in this article: From Stone to Star: A View of Modern Geology, Claude J. Allègre (translated by Deborah Kurmes Van Dam) The Chosen Primate, Adam Kuper 相似文献
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Khan NU Pandya N Prathap KJ Kureshy RI Abdi SH Mishra S Bajaj HC 《Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy》2011,81(1):199-208
Chiral Schiff base ligands (S)-H(2)L and (R)-H(2)L and their complexes (S-Ni-L, R-Ni-L, S-Cu-L, R-Cu-L, S-Zn-L and R-Zn-L) were synthesized, characterized and examined for their DNA binding, antioxidant and antibacterial activities. The complexes showed higher binding affinity to calf thymus DNA with binding constant ranging from 2.0×10(5) to 4.5×10(6) M(-1). All the complexes also exhibited remarkable superoxide (56-99%) and hydroxyl scavenging (45-89%) activities as well as antibacterial activities against gram (+) and gram (-) bacteria. However, none of the complexes showed antifungal activity. Conclusively, S enantiomers of the complexes were found to be relatively more efficient for DNA interaction, antioxidant and antibacterial activities than their R enantiomers. This study reveals the possible utilization of chiral Schiff base complexes for pharmaceutical applications. 相似文献