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The article considers contemporary and modern art in Russia as reflected in museum curatorial projects. The concepts of large-scale museum exhibitions are based on certain categories that correspond to following qualities: the connection with the centuries-old tradition, myth-making, ludic aspects and internationality – openness to the perception of other cultures. The article analyses exhibition projects in the beginning of the twentieth century, in which contemporary art is demonstrated in the space of tradition, the media context, the everyday context and the context of cultural myths and symbols. The problem of determination of the aesthetic value of contemporary art is stressed in the space of the museum, and represented artworks receive a bigger expressiveness in the neighborhood of works of traditional art. Exhibition curators effectively use aesthetic and formal contrasts; sometimes classical artworks themselves suggest new ways of understanding meanings, hypothetically included in contemporary art – as seen in the projects at the Hermitage, the State Russian Museum and the State Tretyakov Gallery, where curators can unite or contrast tradition and modernity.

The effect on ozone-induced oxidation on the self-assembly of fibrin in the presence of fibrin-stabilizing factor FXIIIa of soluble cross-linked fibrin oligomers was studied in a medium containing moderate urea concentrations. It is established that fibrin oligomers were formed by the protofibrils cross-linked through γ-γ dimers and the fibrils additionally cross-linked by through α-polymers. The oxidation promoted both the accumulation of greater amounts of γ-γ dimers and the formation of protofibrils, fibrils, and their dissociation products emerging with increasing urea concentrations, which have a high molecular weight. It is concluded that the oxidation enhances the axial interactions between D-regions of fibrin molecules. [ABSTRACT FROM AUTHOR]

The assessment of the status of contemporary art is theoretically justified in the context of institutional theory, developed in the works of George Dickie and Arthur C. Danto. Museums are pillars of the institutional theory, as they mainly provide art with an undisputed status. The phenomenon of the museum boom of the present day, as the phenomenon of the emergence of the concept of “imaginary museums” in the second half of the 20th century, is associated with longing for “true” art, which ultimately leads to museums, or to the idea of museum. If in a classical museum a viewer expected to see “authentic”, as in “not fake”, works of the old masters, in a museum of contemporary art they expect to see at least “true” art, i.e. works “with the status of art.” Museums give art the quality of “authenticity”, hence the interest in museums and museum projects nowadays, despite the abundance of publicized images of museum artefacts in the media. Instead of these “simulacrums”, museums offer “real” artworks, and the idea of museum attracts a considerable attention, reflected in numerous curatorial projects dedicated to the image and the idea of museum. Among such projects were, for example, the exhibition Voices of Andre Malraux’s Imaginary Museum at the Pushkin Museum of Fine Arts in Moscow and the exhibition The Keeper at the New Museum in New York.

The effect of molecular “aging” of fibrinogen stimulated by preincubation in solution on the fibrin three-dimensional architecture, its ability to crosslink fibrin-stabilizing factor, and the sensitivity of fibringel to plasmin hydrolysis have been studied. The method of elastic light scattering was used to demonstrate that fibrin generated from “defective” fibrinogen had a coarser structure with a higher mean mass-length ratio of polymeric fibers compared to native fibrinogen (2.24 × 109 and 1.46 × 109 g/(mol cm), respectively). Crosslinking had no effect on the architecture of both control and experimental fibrin samples. Spectrophotometric and electrophoretic analysis has shown a higher sensitivity of coarse fibrin gels to plasmin. A close correlation between spontaneous local conformational reconstructions in fibrinogen molecule and its functional activity is concluded. [ABSTRACT FROM AUTHOR]

We studied the influence of the end products of plasmin-mediated hydrolysis of fibrinogen and nonstabilized fibrin ( EF and Ef fragments) on covalent cross-linking of fibrinogen molecules catalyzed by a fibrin-stabilizing factor (factor XIIIa). The data on elastic and dynamic light scattering reveal no difference in the spatial structure of covalently linked fibrinogen molecules in the presence of the hydrolysis end products EF and Ef. In contrast to the inactive fragment EF, fragment Ef significantly accelerates the enzymatic reaction. This is also confirmed by electrophoresis of the reduced samples indicating a relatively fast accumulation of γ-dimers and Aα-polymers as compared to the control samples. Possible molecular mechanisms of this effect are discussed. [ABSTRACT FROM AUTHOR]