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Reflejos y proyección de la naturaleza en la poesía de Juan del Valle y Caviedes
No full textEmbargado hasta 01/01/2100En este trabajo se analiza la configuración/manifestación de los conceptos de naturaleza humana, Natura naturans y Natura naturata en la obra de Juan del Valle y Caviedes, a través de los que pretendemos acercarnos a la lógica subyacente a los textos y obtener unas claves interpretativas para la lectura de sus versos. La poesía de Caviedes nos descubre una concepción trascendente y teleológica de la vida que entra en juego tanto en las críticas a la sociedad, a tipos y personajes concretos, como en la propia construcción de la imagen “pública” autorial
An Extended Approach of a Two-Stage Evolutionary Algorithm in Artificial Neural Networks for Multiclassification Tasks
No full textEmbargado hasta 01/01/2100This chapter considers a recent algorithm to add broader diversity at the beginning of the evolutionary process and extends it to sigmoidal neural networks. A simultaneous evolution of architectures and weights is performed with a two-stage evolutionary algorithm. The methodology operates with two initial populations, each one containing individuals with different topologies which are evolved for a small number of generations, selecting the half best individuals from each population and combining them to constitute a single population. At this point, the whole evolutionary cycle is applied to the new population. This idea was previously proposed by us for product unit neural networks, and we now extend to sigmoidal neural networks. The experimentation has been carried out on twelve data sets from the UCI repository and two complex real-world problems which differ in their number of instances, features and classes. The results have been contrasted with nonparametric statistical tests and show that our proposal significantly improves the test accuracy of the models with respect to the obtained ones with a standard methodology based on a single population. Moreover, the new proposal is much more efficient than other methods developed previously by us
Una mirada hacia la defensa cívica de los derechos: orígenes del defensor civitatis
No full textEmbargado hasta 01/01/210
El excesivo mando del Virrey Caballero y Góngora según un escrito anónimo de la época
No full textEmbargado hasta 01/01/2100Nuestra atención se centra en un documento inédito custodiado en el Archivo General de Indias, redactado a fines del siglo XVIII por parte de un autor anónimo, crítico con la gestión de gobierno ejercida por Caballero y Góngora al frente del Virreinato de Nueva Granada. Junto a cuestiones relacionadas con el nombramiento y destitución de oficiales, se le reprochó la ocupación militar de la región del Darién con la que se buscaba poner fin a los continuos ataques que los indios perpetraban contra los españoles allí asentados.Our attention is focused on an unpublished document kept in the AGI, written at the end of the 18th century by an anonymous author, critical of the government management exercised by Caballero y Góngora at the head of the Viceroyalty of New Granada, Along with issues related to the appointment and dismissal of officers, he was criticized for the military occupation of the Darién region, which sought to put an end to the continuous attacks that the Indians perpetrated against the Spaniards settled there
L'istanza prefativa come incipit nel romanzo italiano della seconda metà dell'Ottocento
No full textEmbargado hasta: 01/01/2100The present paper focuses on the preface as a peculiar kind of narrative beginning in a decisive moment for the Italian novel. Sometimes prefaces are difficult to determine because of their ambiguity, which leads to the possibility of questioning where the proper literary text begins. According to this idea, the objet under analysis here consists on some exemplifying Italian narrative fragments from Tarchetti’s Fosca, Verga’s Eva, De Roberto’s Ermanno Raeli and Pirandello’s Il fu Mattia Pascal ; even if they take the form of prefaces, they fulfil the proper function of narrative beginnings. Actually, the kind of discourse employed to convey a sense of continuity with reality comes out to be a fictional one
At the Crossroads of a Philological Argument: New Letters of Jean Rou to Peter Burman
No full textEmbargado hasta 01/01/2100The aim of this article is to present two previously unknown and unpublished letters – one in Latin and one in French – from the Huguenot scholar, translator to the States General of the United Provinces, Jean Rou, to the Dutch scholar Pieter Burman. In these two letters dating 1707, Rou replies to an earlier critique of Burman on his essay on the two Cato’s of the Ancient world. They illustrate the behind-the-scenes of the early modern “peer-review” process within the Republic of Letters. The first part of the article deals
with the two scholars and their intellectual background, and the second part presents
an edition of the Latin letter with a translation into English, as well as the edition of the French letter
Identificación automática de cárcavas a partir de modelos digitales de elevación y otras fuentes de datos
No full textEmbargado hasta 01/01/2100Los fenómenos de precipitación de carácter
torrencial tienen lugar cada vez con mayor frecuencia. Si
se une la intensificación de la agricultura en zonas como
la campiña sur de España, se obtiene un aumento de la
erosión y la degradación del suelo, potenciando la
formación de regueros y cárcavas. Los métodos actuales
para detectar cárcavas comprenden la aplicación de
diferentes técnicas, como la fotointerpretación directa de
ortofotos o herramientas basadas en Aprendizaje
Automático que carecen de fundamento físico y son
ajenas a los procesos de formación de las cárcavas. Los
modelos de detección de cárcavas más extendidos y
aceptados, por su fundamentación física y empírica, son
los basados en umbrales relacionados con la topografía
del terreno, partiendo de Modelos Digitales de Elevación,
que cumplen con la necesaria conectividad de la red
hidrográfica con las ventajas que supone que, en este
trabajo, como novedad, se aplica a nivel de parcela
agrícola.Torrential precipitation phenomena occur
with increasing frequency. If the intensification of
agriculture in areas such as the southern Spanish
countryside is added, an increase in erosion and soil
degradation is obtained, promoting the formation of rills
and gullies. The current methods to detect gullies will
include the application of different techniques, such as
direct photointerpretation of orthophotos or tools based
on Machine Learning that lack physical foundation and
are aliened to gully formation processes. The most
widespread and accepted gully detection models, due to
their physical and empirical fundamentals, are those
based on thresholds related to the topography of the
terrain, based on Digital Elevation Models, which meet
the necessary connectivity of the hydrographic network.
It in this work, as a novelty, it is applied at the farm
scale
Adaptación del Código Civil al nuevo modelo de la discapacidad. La supresión de la patria potestad prorrogada y rehabilitada
No full textEmbargado hasta 01/01/2100La Ley 8/2021, de 2 de junio, por la que se reforma la legislación civil y procesal para el apoyo a las personas con discapacidad en el ejercicio de su capacidad jurídica, suprime el artículo 171 del Código Civil, regulador de la patria potestad prorrogada y la rehabilitada, por contravenir los principios de la Convención sobre los Derechos de las Personas con Discapacidad. Con este trabajo se pretende analizar la fundamentación teórica y jurídica de la referida reforma.Law 8/2021 amending civil and procedural legislation to support persons with disabilities in the exercise of their legal capacity abolishes the abolition of article 171 of the Civil Code, which regulates extended legal custody and reinstated parental authority, due to contravention of the principles of the Convention on the Rights of Persons with Disabilities. This paper analyses the theoretical and legal basis of the aforementioned reform
Characterization of Ultrastructural Damage of Valves Cryopreserved under Standard Conditions
No full textEmbargado hasta 01/01/2100.Cryopreserved allograft valves are increasingly being used as valvular replacements. This study was conducted to characterize the ultrastructural damage on the allograft valves obtained by a current standard protocol of valve procurement, antibiotic exposure, and cryopreservation, as a basis for future studies on allograft valve preservation. Materials used were seven aortic and seven pulmonary fresh porcine valves, which were cryopreserved according to the requirements of the American and European Associations of Tissue Banks. The samples were ramdomly assigned into four groups: (1) fresh, untreated; (2) fresh, treated with antibiotics for 24 h.; (3) treated with antibiotics and exposed to dimethyl sulfoxide (without freezing); and (4) treated with antibiotics, exposed to dimethyl sulfoxide, and then cryopreserved and stored until the study. All tissue samples were processed simultaneously for routine light microscopy and transmission electron microscopy. Fresh-untreated, antibiotic-treated, and dimethyl sulfoxide-exposed valves showed adequate preservation of cellular components. However, after cryopreservation significant damage was observed in fibroblasts with signs of apoptotic cellular injury. Our observation suggests that apoptosis occurs during valve processing. This apoptotic process may be related to various factors, including chemical injury or hypoxia
Experimental Induction of Ring Fibers in Regenerating Skeletal Muscle
No full textEmbargado hasta 01/01/2100.Light microscopy and electron microscopy were used to study the formation of ring fibers induced experimentally in regenerating muscle subjected to tenotomy-induced tension deficiency. Anterior tibial rat muscles were injured by intramuscular injection of mepivacain, tenotomized at varying stages of the regenerative process, and analyzed 30 days after sectioning the tendon. The combination of regeneration and tenotomy led to the appearance of ring fibers at different developmental stages. Ring fibers were not observed in regenerating control muscles and were scarce in tenotomized controls. Our results showed that the regenerative phase in which tension deficiency was established had a significant influence on the number of developing ring fibers; the number increased when tenotomy was performed during subsarcolemmic myofibrillogenesis in regenerating fibers. As a consequence, one might hypothesize that tension deficiency during muscle fiber repair plays a critical role in ring fiber formation