Bibliografía para el estudio de la pervivencia literaria de la mitología clásica

La mitología clásica está presente en toda la historia de la literatura occidental y su influencia ha sido muy estudiada. El autor ofrece aquí una bibliografía que puede ser de utilidad para futuros investigadores en este campo.___________________________________The presence of classical mythology is patent throughout the history of Western Literature and its influence has been profusely studied. A extensive bibliography is offered, which will be of helpful for future researchers in this field

Marcus Musurus and Pindar

The quotations from Pindar and the Pindaric scholia as collected by Musurus in the scholia on the Planudean Anthology show that he may have had the first and the second Triclinian editions of Pindar at his disposal, which supports the hypothesis of his participation in the edition of the editio princeps.This research has been funded by the Centro de Investigación en Patrimonio Histórico, Cultural y Natural (CIPHCN); and by the Junta de Andalucía through the projects “Los escolios a la Antología Planudea. Manuscritos e incunables, fuentes literarias y edición crítica (P20_01022)” and “Estudio y edición de textos griegos inéditos: los escolios de la Antología Planudea (UHU-202004)” (FEDER 2020). The author wishes to thank Murray Edwards Language Solutions for proofreading and editing the English text of this article

Marcus Musurus and the Transmission of Greek Epigrams

In this article, we study Musurus’ conjectures on the epigrams of the Planudean Anthology by analysing the notes in the margins of a copy of the Lascaris edition (1494) held in the Vatican Library, including autograph notes of Marcus Musurus’ own scholia (Vat. III 81), together with another copy held in the Wren Library of Trinity College, Cambridge, which was used as a printer’s copy for the first two Aldine editions (Grylls 11.313). We conclude that Musurus’ role in the transmission of Greek epigrams is of greater significance than hitherto believed.Nel presente articolo si studiano le congetture di Musurus agli epigrammi dell‟Antologia Planudea, analizzando le note nei margini di una copia dell‟edizione di Lascaris (1494) conservata alla Biblioteca Vaticana, che include note autografe degli scoli dello stesso Marco Musuro (Vat. III 81), insieme con un‟altra copia conservata alla Wren Library del Trinity College, Cambridge, usata come esemplare di stampa per le prime due edizioni aldine (Grylls 11.313). La conclusione è che il ruolo di Musuro nella trasmissione degli epigrammi greci è più significativo di quanto creduto fino ad ora.‘Los escolios a la Antología Planudea. Manuscritos e incunables, fuentes literarias y edición crítica (P20_01022)’ y ‘Estudio y edición de textos griegos inéditos: los escolios de la Antología Planudea (UHU-202004

On a New Witness of the Scholia on the Planudean Anthology

There are several copies of Lascaris's edition of the Anthologia Planudea with scholia around Europe. In this article a new witness that has escaped the attention of previous scholarship is identified.Beca movilidad PX18/0000

Jacques Philippe d’Orville’s Grand Tour: a European trip in search of libraries, manuscripts, and ancient books

For over two years, the Dutch bibliophile and classical scholar Jacques Philippe d’Or- ville (1696-1751) travelled through Europe, visiting not only the greatest libraries of his age, but also private libraries and those located in monasteries and churches. During his trip he wrote a diary that it is today preserved in the Bodleian library in Oxford. The purpose of this article is to describe his travels and to identify the manuscripts and printed editions mentioned in his diary: a task that unveils the variety of interests he had and helps towards understanding his research method

Length Uncertainty in a Gravity's Rainbow Formalism

It is commonly accepted that the combination of quantum mechanics and general relativity gives rise to the emergence of a minimum uncertainty both in space and time. The arguments that support this conclusion are mainly based on perturbative approaches to the quantization, in which the gravitational interactions of the matter content are described as corrections to a classical background. In a recent paper, we analyzed the existence of a minimum time uncertainty in the framework of doubly special relativity. In this framework, the standard definition of the energy-momentum of particles is modified appealing to possible quantum gravitational effects, which are not necessarily perturbative. Demanding that this modification be completed into a canonical transformation determines the implementation of doubly special relativity in position space and leads to spacetime coordinates that depend on the energy-momentum of the particle. In the present work, we extend our analysis to the quantum length uncertainty. We show that, in generic cases, there actually exists a limit in the spatial resolution, both when the quantum evolution is described in terms of the auxiliary time corresponding to the Minkowski background or in terms of the physical time. These two kinds of evolutions can be understood as corresponding to perturbative and non-perturbative descriptions, respectively. This result contrasts with that found for the time uncertainty, which can be made to vanish in all models with unbounded physical energy if one adheres to a non-perturbative quantization.Comment: 12 pages, accepted for publication in Physical Review

Quantum Time Uncertainty in a Gravity's Rainbow Formalism

The existence of a minimum time uncertainty is usually argued to be a consequence of the combination of quantum mechanics and general relativity. Most of the studies that point to this result are nonetheless based on perturbative quantization approaches, in which the effect of matter on the geometry is regarded as a correction to a classical background. In this paper, we consider rainbow spacetimes constructed from doubly special relativity by using a modification of the proposals of Magueijo and Smolin. In these models, gravitational effects are incorporated (at least to a certain extent) in the definition of the energy-momentum of particles without adhering to a perturbative treatment of the back reaction. In this context, we derive and compare the expressions of the time uncertainty in quantizations that use as evolution parameter either the background or the rainbow time coordinates. These two possibilities can be regarded as corresponding to perturbative and non-perturbative quantization schemes, respectively. We show that, while a non-vanishing time uncertainty is generically unavoidable in a perturbative framework, an infinite time resolution can in fact be achieved in a non-perturbative quantization for the whole family of doubly special relativity theories with unbounded physical energy.Comment: 8 pages, accepted for publication in Physical Review

Canonical Realizations of Doubly Special Relativity

Doubly Special Relativity is usually formulated in momentum space, providing the explicit nonlinear action of the Lorentz transformations that incorporates the deformation of boosts. Various proposals have appeared in the literature for the associated realization in position space. While some are based on noncommutative geometries, others respect the compatibility of the spacetime coordinates. Among the latter, there exist several proposals that invoke in different ways the completion of the Lorentz transformations into canonical ones in phase space. In this paper, the relationship between all these canonical proposals is clarified, showing that in fact they are equivalent. The generalized uncertainty principles emerging from these canonical realizations are also discussed in detail, studying the possibility of reaching regimes where the behavior of suitable position and momentum variables is classical, and explaining how one can reconstruct a canonical realization of doubly special relativity starting just from a basic set of commutators. In addition, the extension to general relativity is considered, investigating the kind of gravity's rainbow that arises from this canonical realization and comparing it with the gravity's rainbow formalism put forward by Magueijo and Smolin, which was obtained from a commutative but noncanonical realization in position space.Comment: 18 pages, accepted for publication in International Journal of Modern Physics

Integrated Renewable Production of ETBE from Switchgrass

[EN]In this work, we propose the optimization of a flowsheet for the conceptual design of an integrated renewable production of ETBE from ethanol and i-butene from switchgrass. A superstructure embedding a number of alternatives is proposed. Two technologies are considered for switchgrass pretreatment, dilute acid and a novel ammonia fiber explosion (AFEX), so that the structure of the grass is broken down. Only glucose is fermented to produce i-butene, while xylose is fermented to ethanol. Ethanol is purified using a multieffect column followed by molecular sieves and a PSA-membrane system is used to upgrade the i-butene. The problem is formulated as an MINLP, and solved for each pretreatment as an NLP. Finally, an economic evaluation is performed including a sensitivity analysis. Biomass composition determines the byproduct obtained. Dilute acid is the selected pretreatment due to the largest yield to sugars and the possibility of adjusting the production of both i-butene and ethanol for the needs to ETBE. For a facility that produces 90 kt/yr of ETBE, the investment adds up to 160 M€ for a production cost of 0.61€/kg, which is above market price. Even though the results look promising, further experimental and scale up studies are required for validation