Publications by authors named "A R Mkrtchyan"

In recent years, fungal infections have emerged as a significant health concern across veterinary species, especially in livestock such as cattle, where fungal diseases can result in considerable economic losses, as well as in humans. In particular, species, notably and , are opportunistic pathogens that pose a threat to both animals and humans. This study focuses on the synthesis and antifungal evaluation of novel 9-fluorenylmethoxycarbonyl (Fmoc)-protected 1,2,4-triazolyl-α-amino acids and their dipeptides, designed to combat fungal pathogens.

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  • Fiber mode-locked lasers produce ultrashort pulses and can have varying optical outputs based on cavity adjustments, leading to challenges due to their multistability.
  • The study showcases the use of the Soft Actor-Critic algorithm to generate a harmonic mode-locked regime in a fiber laser, utilizing an ion-gated nanotube saturable absorber.
  • This research presents a machine-learning approach to effectively manage pumping power and absorber transmission, enabling automatic adjustments to overcome the complexities of nonlinear optical systems.
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  • A new method for creating enantiomerically enriched (S)-α-aminopropionic acid derivatives was developed using a reaction called Cu(I) catalyzed [3 + 2] cycloaddition, which combines azides with alkynes.
  • The process started with a specific nickel complex and involved several key chemical components, including Schiff bases and phenyl azides.
  • The absolute configuration and purity of the resulting amino acids were confirmed through advanced techniques like circular dichroism and chiral HPLC analysis, leading to the successful synthesis of seven new non-proteinogenic (S)-α-amino acids.
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The influence of oxytocin on spontaneous electrical activity of the ovarian horn areas as well as the uterine corpus has been studied. Analysis of the main characteristics of activity parameters (amplitude of action potentials, spike generation frequency and total duration of bursts in 1 minute time frame) revealed some notable differences between above mentioned areas. In norm, the highest values of automatism indicators were noted for the left horn.

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The title compound, poly[bis-(β-alaninium) [[di-bromido-plumbate]-di-μ-di-bromido]] {(CHNO)[PbBr]} or (-AlaH)PbBr, crystallizes in the monoclinic space group 2/. The (PbBr) anion is located on a general position and has a two-dimensional polymeric structure. The Pb center is holodirected.

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