Ring polymers are one of the last big mysteries in polymer physics, and this thesis tackles the problem of describing their behaviour when interacting in dense solutions and with complex environments and reports key findings that help shed light on these complex issues. The systems investigated are not restricted to artificial polymer systems, but also cover biologically inspired ensembles, contributing to the broad applicability and interest of the conclusions reached. One of the most remarkable findings is the unambiguous evidence that rings inter-penetrate when in dense solutions; here this behaviour is shown to lead to the emergence of a glassy state solely driven by the topology of the constituents. This novel glassy state is unconventional in its nature and, thanks to its universal properties inherited from polymer physics, will attract the attention of a wide range of physicists in the years to come.
Praised by Albrecht Dürer as being “the best in painting,” Giovanni Bellini (ca. 1430– 1516) is unquestionably the supreme Venetian painter of the quattrocento and one of the greatest Italian artists of all time. His landscapes assume a prominence unseen in Western art since classical antiquity. Drawing from a selection of masterpieces that span Bellini's long and successful career, this exhibition catalogue focuses on the main function of landscape in his oeuvre: to enhance the meditational nature of paintings intended for the private devotion of intellectually sophisticated, elite patrons. The subtle doctrinal content of Bellini’s work—the isolated crucifix in a landscape, the “sacred conversation,” the image of Saint Jerome in the wilderness—is always infused with his instinct for natural representation, resulting in extremely personal interpretations of religious subjects immersed in landscapes where the real and the symbolic are inextricably intertwined. This volume includes a biography of the artist, essays by leading authorities in the field explicating the themes of the J. Paul Getty Museum’s exhibition, and detailed discussions and glorious reproductions of the twelve works in the show, including their history and provenance, function, iconography, chronology, and style.
Ring polymers are one of the last big mysteries in polymer physics, and this thesis tackles the problem of describing their behaviour when interacting in dense solutions and with complex environments and reports key findings that help shed light on these complex issues. The systems investigated are not restricted to artificial polymer systems, but also cover biologically inspired ensembles, contributing to the broad applicability and interest of the conclusions reached. One of the most remarkable findings is the unambiguous evidence that rings inter-penetrate when in dense solutions; here this behaviour is shown to lead to the emergence of a glassy state solely driven by the topology of the constituents. This novel glassy state is unconventional in its nature and, thanks to its universal properties inherited from polymer physics, will attract the attention of a wide range of physicists in the years to come.
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