Alexander Shirokov

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Neal Dalal, Olivier Doré, Dragan Huterer, and Alexander Shirokov Canadian Institute for Theoretical Astrophysics, 60 St. George Street, University of Toronto, Toronto, ON, Canada M5S3H8 Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics, University of Chicago, Chicago, Illinois 60637, USA Department of Physics, University(More)
The efficiency of cryopreservation of seeds of five rare and endangered species of temperate orchids belonging to Platanthera and Dactylorhiza genera followed by their asymbiotic culture in vitro, as well as of in vitro cultured D. fuchsii protocorms (specific stage of orchid embryo development after release from the seed coat) was investigated. Germination(More)
Gold nanoparticles (GNPs) and GNP-based multifunctional nanocomposites are the subject of intensive studies and biomedical applications. This minireview summarizes our recent efforts in analytical and theranostic applications of engineered GNPs and nanocomposites by using plasmonic properties of GNPs and various optical techniques. Specifically, we consider(More)
Stress is a major factor for a risk of cerebrovascular catastrophes. Studying of mechanisms underlying stress-related brain-injures in neonates is crucial for development of strategy to prevent of neonatal stroke. Here, using a model of sound-stress-induced intracranial hemorrhages in newborn rats and optical methods, we found that cerebral veins are more(More)
In this study, we analyzed the time-depended scenario of stress response cascade preceding and accompanying brain hemorrhages in newborn rats using an interdisciplinary approach based on: a morphological analysis of brain tissues, coherent-domain optical technologies for visualization of the cerebral blood flow, monitoring of the cerebral oxygenation and(More)
The application of the group theory to description of biological objects pseudosymmetry is introduced and substantiated by the example of rotatory symmetry of actinomorphic and zygomorphic flowers. Problems of biosymmetrics terminology are considered; point symmetry elements are characterized as being applied to description of flower symmetry; central(More)
Pairwise forces between particles in cosmological N-body simulations are generally softened to avoid hard collisions. Physically, this softening corresponds to treating the particles as diffuse clouds rather than point masses. For particles of unequal mass (and hence unequal softening length), computing the softened force involves a nontrivial double(More)