Grupos de Investigación

De Venturini a Bagunyà: visiones de la divergencia

Tue, 01 Sep 2026 00:00:00 GMT

[ES] Este artículo explora las representaciones de la divergencia, la enfermedad y la deformidad en la narrativa hispánica contemporánea a través del análisis comparativo de Las primas (2007) de Aurora Venturini y Los puntos ciegos (2021) de Borja Bagunyà. A pesar de sus diferencias generacionales y de contexto, ambas obras establecen un vínculo orgánico entre la forma estética y la temática: Venturini emplea la voz expresiva de su protagonista disléxica para retratar la crueldad y la discapacidad sin paternalismo, mientras que Bagunyà recurre a lo grotesco, las digresiones y la saturación formal para cuestionar el cinismo intelectual ante lo deforme. Asimismo, el texto contextualiza estas novelas junto a referentes de la narrativa contemporánea como Cristina Morales o Margarita García Robayo, demostrando cómo la deformación lingüística y la experimentación formal se convierten en herramientas clave para abordar la neurodivergencia, la corporalidad y la alteridad.

Multistate coupled diabatic neural network potential for the quantum non-adiabatic photofragmentation of CH2+

Thu, 01 Jan 2026 00:00:00 GMT

[EN]Tracking the complex non-adiabatic transitions in far-ultraviolet photodissociation demands highly accurate diabatic potential energy matrices (PEMs) across numerous excited states. To address this, we introduce a fully automated diabatization method that leverages artificial neural networks to fit PEMs. Our approach divides the PEM into a physically grounded zeroth-order diagonal term, which is then corrected by a neural network matrix to capture electronic couplings. By enforcing symmetry constraints on off-diagonal elements and sharing degenerate diabatic states between the A0 and A00 irreducible representations, the diabatization process becomes completely automatic. We validate this method using time-dependent wavepacket calculations to simulate the photodissociation of CH2+, incorporating relevant states up to E13.6 eV. Finally, we compute partial cross-sections for all fragmentation channels—including total and partial fragmentation yielding CH+, CH, H2, and H2+ diatoms—revealing a notably high cross-section for the formation of the CH radical.

Ultrafast Nonadiabatic Dynamics of Tetraphenyl‐substituted Nitrogen‐Based Heterocycles

Thu, 01 Jan 2026 00:00:00 GMT

[EN]Tetraphenylpyrazine (TPP) and 2,3,4,5-tetraphenyl-1H-pyrrole (TePP) are closely related heterocycles bearing four phenyl sub- stituents, whose structural similarity makes them a useful pair for comparing how intramolecular flexibility influences excited- state relaxation and emission in the gas phase and in the solid state. TPP is a prototypical solid-state luminescence enhancement emitter, exhibiting a markedly increased quantum yield upon molecular aggregation. In contrast, TePP displays similar quantum yields in solution and solid state, a characteristic of dual-state emission. This behavior indicates that intramolecular rotations are already significantly hindered in the isolated-molecule regime, consistent with our previous observations for TPP and other solid- state emitters (Hernández-Rodríguez et al., ChemPhysChem, 2024, 25, e202400563). To unravel the excited-state dynamics under- lying this contrasting behavior, we performed mixed quantum–classical trajectory simulations on a single molecule of TPP and TePP employing the surface-hopping method. Twelve singlet states were included at the TD-B3LYP-D3/def2-SVP level, which were previously benchmarked against coupled-cluster methods. Simulated observables, such as gas-phase ultrafast electron dif- fraction and time-resolved fluorescence signals, allow us to dissect the distinct deactivation pathways operating in both systems in the gas phase, while also providing mechanistic insight into how these pathways are expected to evolve in solution and solid-state environments.

Autoencoding-Based Self-Supervised Learning for Enhanced Representation of Network Traffic Patterns

Mon, 17 Aug 2026 00:00:00 GMT

[EN]Network Traffic Monitoring and Analysis (NTMA) is increasingly important given the growing volume of network data and the associated cyber threats. Effective NTMA involves analyzing data packets for performance optimization, security, and policy compliance. In recent years, Machine Learning (ML) has shown high performance in this domain; however, traditional ML methods rely heavily on labeled data, which is costly and scarce. This paper proposes AE-SSL (Autoencoding-Based Self-Supervised Learning), a denoising autoencoder framework that enhances the representation of IoT-centric network traffic patterns using unlabeled data. AE-SSL employs two complementary pretext tasks tailored to tabular data (binary mask prediction and corrupted-feature reconstruction), and improves the performance of various classification models, including traditional and deep learning-based models. In our IoT-centric evaluation on two datasets, AE-SSL significantly improves classification metrics compared to supervised learning approaches. For example, on the ACI IoT 2023 dataset (100 pretraining epochs), AE-SSL improves AdaBoost macro-precision from 70.3% to 83.0% and SVC accuracy from 86.0% to 96.4%. On the CICIoT 2023 dataset (100 epochs), AdaBoost accuracy improves from 95.1% to 96.9%, and Logistic Regression accuracy from 73.7% to 76.2%. Additionally, an ablation study on key parameters reveals their impact on model performance, providing insights into optimizing self-supervised learning for network traffic analysis. These findings point to the potential of self-supervised techniques for IoT-centric NTMA; generalization to enterprise, mobile, and cloud traffic remains to be established and is left to future work.

A new type of multi-Sugeno-inspired aggregation functions

Wed, 01 Jul 2026 00:00:00 GMT

[EN] Fuzzy integrals, particularly those based on the Sugeno integral, offer a robust approach to aggregating ordinal data, frequently employed in fields like scientometrics. Existing Sugeno-inspired aggregation functions utilize a single comparison function for efficiency. This work introduces a novel ‘multi-Sugeno-inspired aggregation function’ that extends this approach by incorporating multiple, component-sensitive comparative functions. This design overcomes limitations of previous models by enabling more reliable evaluations independent of positional bias, while maintaining computational efficiency and symmetry. We explore the generalization of a conjunctive Sugeno-inspired form. Our research highlights the potential of these functions for improved aggregation, particularly within the context of unbalanced ordinal data, and suggests future investigation into non-symmetric variations.

Escenarios de violencia de género: una experiencia de aprendizaje-servicio para la prevención desde la Antropología de la Música

Wed, 01 Jul 2026 00:00:00 GMT

[ES] Este capítulo presenta una experiencia de innovación docente desarrollada en la Universidad de Salamanca, en el marco del proyecto «Interpretación musical y prevención de violencia de género», en colaboración con el Conservatorio Superior de Música de Castilla y León y la asociación ADAVAS. La propuesta integra el Aprendizaje-Servicio y la etnografía para analizar los procesos culturales mediante los que se producen, reproducen y naturalizan desigualdades de género en las prácticas de formación e interpretación musical. El trabajo tiene como objetivos identificar procesos de feminización y masculinización de instrumentos y prácticas musicales, analizar experiencias de discriminación y violencia simbólica, visibilizar trayectorias que cuestionan los estereotipos de género y generar un archivo etnográfico orientado a la sensibilización y la intervención educativa. La metodología del proyecto combinó entrevistas semiestructuradas, historias de vida, documentación audiovisual y archivo etnográfico, desarrollados mediante un proceso de formación, trabajo de campo, análisis colectivo y reflexión crítica con el alumnado. Los primeros resultados, de carácter exploratorio, muestran que la socialización musical está atravesada por normas de género que han asociado determinados instrumentos, espacios de interpretación y formas de participación con lo masculino, mientras que las mujeres han ocupado mayoritariamente ámbitos como el baile, el canto o el acompañamiento. Asimismo, las narrativas evidencian procesos de naturalización de estas desigualdades y permiten identificar trayectorias excepcionales que cuestionan los roles establecidos. El capítulo destaca el potencial del enfoque antropológico y del Aprendizaje-Servicio para articular investigación, docencia y compromiso social, promoviendo una comprensión crítica de las relaciones entre música, género y poder y contribuyendo a la prevención de las desigualdades de género desde la universidad.

Bone industry management in the Upper Paleolithic occupations at El Cierro Cave (Ribadesella, Asturias, Spain)..

Thu, 01 Jan 2026 00:00:00 GMT

[EN] Although the production of artifacts from hard animal materials is considered an essential activity in subsistence strategies during the Upper Palaeolithic of SW Europe, the study of the bone industry of the El Cierro sequence shows an unequal proportion in the number of remains and in the complexity of the operational chains put into practice throughout the different periods. This study shows a turning point from the Lower Magdalenian, a period in which a clear increase is observed both in the number of elements and in the technical procedures carried out within the site. However, neither during the Lower Magdalenian nor during previous periods are there any planned operations aimed at the regular acquisition of bone raw materials, which leads us to reflect on the strategic nature of this technology throughout the Upper Palaeolithic sequence

Archaeobiology during Greenland Stadial 2 in northern Spain, ca. 22,000-15,000 cal BP

Tue, 01 Jan 2019 00:00:00 GMT

[EN] In these years, several research teams have focused on the importance of biotic resources for the hunter-gatherer-shellfisher groups that lived in northern Spain in the late Upper Pleistocene. The scientific meeting held in Salamanca (Spain) in 2017, known by the abbreviation of ARBIOGRES2 (Archaeobiology during Greenland Stadial 2 in Northern Spain), was attended by a large group of researchers who presented studies and new data to approach the biotic evidence documented in this part of the Iberian Peninsula and dated in Greenland Stadial 2. This monograph contributes up-to-date information about the flora and fauna associated with archaeological sites attributed to the Magdalenian archaic, lower and middle phases, which will enable a better understanding of the relationship between human groups and the environment in the period ca. 22-15,000 cal BC in Cantabrian Spain

Biotic Resources in the Lower Magdalenian at Cova Rosa (Sardeu, Asturias, Spain).

Tue, 01 Jan 2019 00:00:00 GMT

[EN] Cova Rosa is an archaeological site in Asturias, Spain, excavated by Francisco Jordá Cerdá in 1958, 1959 and 1964. Later, the same archaeologist and Alejandro Gómez Fuentes carried out an excavation from 1975 to 1979. They documented two levels, named Cova Rosa A and Cova Rosa B. The archaeological material resulting from this excavation has remained practically unpublished. This paper presents the biotic remains (ligneous and faunal resources) in Layer B6, dated by radiocarbon to about 15,800 BP (c. 18,700 cal BP), corresponding to the Lower Magdalenian. Anthracological analysis shows that the human groups selected mostly shrub species for their fires. Archaeozoological information indicates that hunting specialising in red deer predominated, while fishing salmonids and shellfishing (mostly limpets and periwinkles) were complementary activities to hunting and gathering plants. Other economic activities practiced in the cave were the fabrication of osseous implements and objects of adornment made with animal raw materials. Through the biotic remains that have been documented, it can be inferred that, at that time in Greenland Stadial 2, conditions were relatively cold and humid, and the vegetation was dominated by grasslands and shrubs

Living Among Personal Ornaments During the Magdalenian: Some Reflections About Perforated Marine Shells in Cantabrian Spain

Tue, 01 Jan 2019 00:00:00 GMT

[EN] Personal ornaments are some of the most emblematic elements of the Magdalenian in Cantabrian Spain and are also quite abundant. This paper reviews the available evidence dated between 17,000 and 12,000 BP (20,500–14,000 cal BP) in this region. In order to define their context precisely, first a critical analysis has been made of the levels in which they were found (stratigraphic position, dates, etc.) and new unpublished and published finds have been assessed and included. With these criteria, the number of objects in the subsequent study is 1,272. By focusing on the raw material in which these objects were made, this study shows that they were made predominately from mollusk shells (57%), followed by other materials with an animal origin (teeth, bone, and antler). The proportion of mineral raw materials is <5%. The personal ornaments made exclusively from marine mollusk shells are then studied in greater depth. Only objects from levels dated to the Magdalenian by the radiocarbon technique are taken into account. A total of 655 perforated shells have been included, and their classification to species level, taphonomy, and provenance (Atlantic and/or Mediterranean) have been considered. Small specimens of species with no nutritional value predominate, particularly gastropods (L. obtusata followed by Trivia sp. make up ca. 67% of the total) rather than scaphopods and bivalves. The percentage of Mediterranean specimens is <5%. The statistical classification techniques applied to the different levels ascribed to the Magdalenian do not allow them to be discriminated according to either chronological or geographic characteristics. Additionally, to determine whether the use of different shell-types varied in the course of the millennia that the Magdalenian lasted in Cantabrian Spain, five phases have been established by filtering the radiometric dates of the levels in which the objects were found. A Biplot analysis characterizes the phases according to the preponderance of the shell-types. A clear difference is seen between Phase II, characterized by the scaphopod Antalis sp., and the other phases, in which gastropods predominate, mainly L. obtusata + L. fabalis and Trivia sp.

Mediterranean Monk Seal hunting in the regional Epipaleolithic of Southern Iberia. A study of the Cueva de Nerja site (Málaga, Spain)

Tue, 01 Jan 2019 00:00:00 GMT

[EN] During the Late Glacial Early Holocene transition Southern Iberia has an extensive record of Palaeolithic coastal sites, wich have been preserved due thanks to the morphology of the continental shelf. This is was a period with rapid palaeoclimatic oscillations and changes in sea level. However, the sites show an apparent continuity in technology and subsistence trends, although human groups made increasingly intense use of marine resources. In this paper we will focus on the study of Mediterranean seal remains from the Vestíbulo hall of Cueva de Nerja (M alaga, Spain), unit NV4, dated 12,990e11,360 cal. BP. The presence of these bones at the site are interpreted as direct exploitation of seals by humans, who processed different parts of the animal like the flesh, blubber and skin. These data allow us to assess the changing role of marine mammals in the regional Palaeolithic economy.

Avance de las investigaciones arqueofaunísticas en el poblado Tardoantiguo de El Castillón (Santa Eulalia de Tábara, Zamora).

Wed, 01 Jan 2020 00:00:00 GMT

[ES] El poblado amurallado de El Castillón (Zamora) se sitúa en una cima amesetada sobre el curso medio del río Esla. En él se han documentado diferentes estructuras (de hábitat, de almacenamiento, de trabajo del metal), que se ponen en relación con diferentes ocupaciones que tuvieron lugar entre los siglos V y VI d. C. Asociadas a estas ocupaciones se han clasificado un gran cantidad de restos faunísticos (fundamentalmente de caprino y de porcino, pero también, aves, peces, moluscos, etc.) a partir de los cuales se ofrece una primera aproximación sobre las estrategias de subsistencia de los habitantes del poblado

Geoarchaeological and Chronostratigraphic study of the Upper Pleistocene record of the Cierro cave (Fresno, Ribadesella, Asturias, Spain)

Mon, 01 Jan 2018 00:00:00 GMT

[ES] La cueva de El Cierro (Fresno, Ribadesella, Asturias) es una cavidad kárstica situada en la margen oeste del río Sella y desarrollada en las calizas carboníferas del Macizo Asturiano de la Cordillera Cantábrica (norte de la Península Ibérica), que contiene un importante registro sedimentario, arqueológico y paleontológico del Pleistoceno superior y Holoceno inferior, con abundantes evidencias tecnológicas y restos faunísticos. El registro arqueológico arranca con un nivel que podría corresponder al Paleolítico medio final, sigue con una completa secuencia del Paleolítico superior de la que se cuenta con un nivel del Magdaleniense inferior claramente identificado y datado, y termina con unos niveles datados a finales del Paleolítico superior/Aziliense y en el Mesolítico que configuran un conchero. La secuencia estratigráfica se compone de catorce niveles agrupados en dos unidades litoestratigráficas con características sedimentarias muy distintas, una inferior, siliciclástica y otra superior biogénica formada por la acumulación de conchas y huesos de aporte antrópico, que se estudian con metodología geoarqueológica. En este trabajo se analiza la secuencia litoestratigráfica y se presentan los datos de los análisis granulométricos, mineralógicos, edafológicos y radiométricos. El resultado de estos análisis permite interpretar con precisión tanto la litoestratigrafía del depósito como los procesos sedimentarios y diagenéticos responsables de su formación y posterior evolución. Las dataciones radiocarbónicas disponibles permiten situar los niveles superiores de la secuencia siliciclástica en el GS 2b y el conchero inferior en el GI 1 y el GS 1 (Dryas reciente), al final del Pleistoceno superior, mientras que el conchero superior estaría situado en la cronozona Boreal en los inicios del Holoceno.

Surviving on the isle of Formentera (Balearic Islands): Adaptation of economic behaviour by Bronze Age first settlers to an extreme insular environment

Sun, 01 Jan 2017 00:00:00 GMT

[EN] The isle of Formentera (Balearic Archipelago, Spain) was one of the latest insular contexts to be colonized in the Mediterranean. The first settlement occurred during the secondmillennium cal BCE, and this late human occupation is associated with insularity factors, including an extreme environment. Cap de Barbaria II is one of the biggest openair naviform villages occupied during the first prehistoric settlement and for an extended period (ca. 1600– 850 cal BCE).Multidisciplinary archaeological research conductedwithin the site reveals adaptation of the economic behaviour of these first settlers to an environment poor in resources. In this sense, aspects such as innovation, diversification, and intensification in the use of resources characterized the subsistence and technological patterns developed by the prehistoric inhabitants of Formentera. New data from different archaeological and paleoenvironmental studies, such as archaeobotanical, archaeozoological, or technological and functional, have been analyzed. In this sense, the assessed subsistence patterns, reveal adaptive strategies that encompass different local and exogenous resources and differ from those observed in the rest of the Balearic Islands

Subsistencia, movilidad y adaptación al medio de los cazadores-recolectores gravetienses en el sector occidental de la Región Cantábrica: la cueva de Coímbre (Asturias).

Sun, 01 Jan 2017 00:00:00 GMT

[ES] Coímbre is one of the few Gravettian sites the middle- western part of Cantabria. It is one of the most interesting sites for the analysis of the Gravettian close to the boundary of its western expansion in Europe. Zooarchaeological and taphonomical study of the faunal and archaeobotanical remains and the lithic industry and the interpretation of its AMS-dated archaeological and sedimentological sequence make it possible to analyse the Gravettian settlement in Coímbre cave using a territorial perspective. The subsistence strategies developed in Coímbre have been determinant in the interpretation of its occupation patterns. Thus, we can assess the existence of the specific mobility and subsistence patterns developed by these human groups in the framework of Cantabria. This pattern shows an ephemeral logistic and punctual occupation of the cave, probably linked to an eastern-western corridor. This is one of the paper’s most interesting contributions.

El poblado naviforme de Cap de Barbaria (Formentera, Islas Baleares). Nuevos datos sobre su cronología y secuencia de ocupación.

Sun, 01 Jan 2017 00:00:00 GMT

[EN] We present a series of six radiocarbon dates from the site of Cap de Barbaria II (Formentera, Balearic Islands). These place its occupation in the Bronze Age. In addition, methodological aspects of date calibration according to the nature of the samples (animal bone and shell) are discussed. This information defines chronological time span of the Naviform societies in the islands of Ibiza and Formentera and provides important elements for the understanding the formation, development, and end of these societies throughout the Balearic archipelago