Datos de Investigación

Permanent URI for this collectionhttps://docta.ucm.es/handle/20.500.14352/16

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Upper thermal tolerance of the euryhaline fish Fundulus heteroclitus is lower in freshwater and shaped by environmental salinity–acclimation time interaction
(Journal of Thermal Biology, 2026) Barany Ruiz, André; Caderno, Anyell; Simó-Mirabet, Paula; Shaughnessy, Ciaran Alvar; Martos-Sitcha, Juan Antonio; Mancera, Juan Miguel; McCormick, Stephen Daniel
This study investigated whether salinity affects upper thermal tolerance (CTmax) in the euryhaline mummichog (Fundulus heteroclitus). Fish were acclimated to seawater (38 ppt, SW) or freshwater (<1 ppt, FW) at 18.5 °C before being transferred to the opposite salinity, and CTmax together with physiological responses were assessed on days 0, 1, 3, 6, and 13 post-transfer. CTmax remained consistently lower in FW than in SW regardless of prior acclimation. Relative to acclimation controls, CTmax exposure decreased plasma ion concentrations in FW-transferred fish but increased them in SW-transferred fish, while elevating plasma cortisol, glucose, lactate, and hematocrit in both salinities. Model selection using the second-order Akaike Information Criterion (AICc) identified the interaction between salinity and acclimation time as the strongest predictor of CTmax. Multivariate analyses further indicated that the physiological mechanisms underlying thermal tolerance differed between environments. In FW, CTmax progressively declined over time, reflecting a trade-off between maintaining ionic homeostasis through energetically costly residual (ouabain-insensitive) ATPase activity and a distinct stress-induced erythropoietic response. In contrast, thermal performance improved over time in SW and was closely associated with osmolality, glucose, and cortisol, whereas lactate accumulation represented a common response across both salinities. Overall, these findings demonstrate that ion-poor freshwater environments impose a persistent thermal penalty, suggesting that the combined effects of low salinity and increasing temperatures may heighten the climate vulnerability of estuarine fish populations beyond current ecological predictions.
Encuesta de percepción de la ciencia para estudiantes de secundaria
(2025) Ihammanen, Anissa; Ezquerra Martínez, Ángel; Campillos Ladero, Rafael; Fernández-Fuertes, José María; Martínez Chicharro, María
Este conjunto de datos recoge las respuestas de 152 estudiantes de educación secundaria (64 en España y 88 en Marruecos) a un cuestionario sobre percepción social de la ciencia y la tecnología, adaptado de los estudios de percepción social de la ciencia de FECYT. El instrumento, administrado en español (con apoyo en árabe para la muestra marroquí) mediante un formulario en línea, recoge datos sociodemográficos, intereses e información autopercibida sobre distintos ámbitos temáticos, hábitos de consumo cultural y mediático, opiniones y actitudes hacia la ciencia y la tecnología, y un test de 31 ítems dicotómicos sobre concepciones científicas básicas (astronomía, biología, física, química y geología). A partir de las respuestas brutas se han construido escalas compuestas de interés, información, conocimiento, opinión y actitudes hacia la ciencia, con sus correspondientes versiones recodificadas en sentido inverso, agrupadas por país. Materiales asociados al conjunto de datos: Encuesta_secundaria_ES.pdf — Instrumento de recogida de datos: cuestionario en español aplicado a la muestra de España. Encuesta_secundaria_AR.pdf — Instrumento de recogida de datos: versión en árabe del cuestionario, aplicada a la muestra de Marruecos. Respuestas_formulario_ES+AR_revisado.csv — Fichero de respuestas brutas del cuestionario (versiones española y árabe combinadas), codificadas numéricamente. variables+conocimiento.csv — Fichero de escalas construidas: interés, información, conocimiento, opinión y actitudes hacia la ciencia, por país. Cita sugerida: Ihammanen, A.; Ezquerra, A.; Campillos, R. y Fernández-Fuertes, J.M. (2026). Percepción social de la ciencia y la tecnología, conocimientos científicos básicos y actitudes hacia la ciencia en estudiantes de secundaria de España y Marruecos [Conjunto de datos]. Universidad Complutense de Madrid. [Handle URL] --- English version--- This dataset contains the responses of 152 secondary school pupils (64 in Spain and 88 in Morocco) to a questionnaire on the social perception of science and technology, adapted from FECYT’s studies on the social perception of science. The instrument, administered in Spanish (with Arabic support for the Moroccan sample) via an online form, collects sociodemographic data, interests and self-reported information on various subject areas, cultural and media consumption habits, opinions and attitudes towards science and technology, and a test comprising 31 dichotomous items on basic scientific concepts (astronomy, biology, physics, chemistry and geology). Based on the raw responses, composite scales were constructed for interest, information, knowledge, opinion and attitudes towards science, with their corresponding reverse-scored versions, grouped by country. Materials associated with the dataset Encuesta_secundaria_ES.pdf — Data collection instrument: questionnaire in Spanish administered to the sample from Spain. Encuesta_secundaria_AR.pdf — Data collection instrument: Arabic version of the questionnaire, administered to the sample from Morocco. Respuestas_formulario_ES+AR_revisado.csv — File containing raw questionnaire responses (Spanish and Arabic versions combined), numerically coded. variables+conocimiento.csv — File containing constructed scales: interest, information, knowledge, opinion and attitudes towards science, by country. Suggested citation: Ihammanen, A.; Ezquerra, A.; Campillos, R. & Fernández-Fuertes, J.M. (2026). Social perceptions of science and technology, basic scientific knowledge and attitudes towards science among secondary school pupils in Spain and Morocco [Dataset]. Complutense University of Madrid. [Handle URL]
Base de datos de tesis doctoral sobre Representación corporal y la relación con procesos cognitivos
(2026) Mozo del Castillo, José Félix; Ruiz Sánchez de León, José María
Base de datos de la tesis doctoral Representación Corporal y Procesos cognitivos. Incluye variables sociodemográficas, biomédicas, neuropsicológicas y de representación corporal en 100 personas (n: 53 ictus; n: 47 controles sanos).
Patografías femeninas en los Premios Goya
(2026) Calvo Olloqui, Enma; Guerrero Muñoz, Aramis; Deltell Escolar, Luis
Corpus cinematográfico de 199 películas realizadas entre los años 2003-2019 y nominadas a los Goya 2004-2020
Patografías femeninas en los Premios Goya 2004-2020
(2026) Guerrero Muñoz, Aramis; Calvo Olloqui, Enma; Deltell Escolar, Luis
Corpus cinematográfico de 199 películas realizadas entre los años 2003-2019 y nominadas a los Goya 2004-2020
Inteligencia artificial y salud mental: análisis de su tratamiento informativo en los medios españoles (1996-2025) - DATASET
(2026) Chaparro Domínguez, María De Los Ángeles; Moreno Gil, Victoria; Segado Boj, Francisco José
Reverse delegated training and private inference via perfectly-secure quantum homomorphic encryption
(2026) Ortega, Sergio A.; Martín-Delgado Alcántara, Miguel Ángel
Quantum machine learning in cloud environments requires protecting sensitive data while enabling remote computation. Here we demonstrate the first realistic implementations of a perfectly-secure quantum homomorphic encryption (QHE) scheme applied to quantum neural networks (QNN). Using efficient Clifford+T decomposition, we implement quantum convolutional neural networks for two complementary scenarios: (i) reverse delegated training, where encrypted data from multiple providers trains a user’s network via federated aggregation; (ii) private inference, where users process encrypted data with remote quantum networks. Moreover, analysis of server circuit privacy reveals probabilistic model protection through Pauli gate concealment. These results establish perfectly-secure QHE as a practical framework for multi-party quantum machine learning.
SQUWALS: a Szegedy QUantum WALks Simulator
(2024) Ortega, Sergio A.; Martín-Delgado Alcántara, Miguel Ángel
Szegedy's quantum walk is an algorithm for quantizing a general Markov chain. It has plenty of applications such as many variants of optimizations. In order to check its properties in an error-free environment, it is important to have a classical simulator. However, the current simulation algorithms require a great deal of memory due to the particular formulation of this quantum walk. In this paper we propose a memory-saving algorithm that scales as (N2) with the size N of the graph. We provide additional procedures for simulating Szegedy's quantum walk over mixed states and also the Semiclassical Szegedy walk. With these techniques we have built a classical simulator in Python called SQUWALS. We show that our simulator scales as (N2) in both time and memory resources. This package provides some high-level applications for algorithms based on Szegedy's quantum walk, as for example the quantum PageRank.
Data: Mitigating magnesium reactivity in ceo2-containing waterborne coatings through zrcc and ldh surface pre-treatments
(2026) Gómez Granados, Jonatan; Paulis, María; Mohedano Sánchez, Marta; Arrabal Durán, Raúl; Leiza, Jose Ramón; Vega Vega, Jesus Manuel
Organic coatings are used as one of the most effective strategies for the corrosion protection of metals. Nowadays, due to environmental regulations, the use of water-based coatings has become essential compared to solvent-based ones. However, their application to magnesium alloys remains largely unexplored due to their high reactivity with water. In the present work, a phosphate-functionalized waterborne binder is applied to AZ31B magnesium alloy. The surface has been modified by four different pre-treatments, respectively: (i) mechanical grinding, (ii) pickling, (iii) conventional conversion treatment, and (iv) a novel conversion treatment based on layered double hydroxides (LDH). The most promising pre-treatments are selected to explore their synergy with a biobased waterborne binder, containing CeO2 nanoparticles as a corrosion inhibitor. The morphology and composition of the different systems are studied, prior to and after corrosion tests in NaCl solution, by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). Results obtained by electrochemical impedance spectroscopy (EIS) in NaCl solution have revealed not only that LDH performs better than the conventional conversion treatment but also the synergy between LDH pre-treatment and CeO2 nanoparticles when two organic layers are used.
Effects of play-based interventions in Physical Education on emotional intelligence, self-concept, and assertiveness: an umbrella review
(2026) Mínguez Rayo, Fernando; Navarro Asencio, Enrique
What are the effects of play-based interventions on emotional intelligence, self-concept and assertiveness in children and adolescents according to existing systematic reviews and meta-analyses in Physical Education? Play is one of the most relevant pedagogical resources in Physical Education due to its ability to promote the integral development of students. In addition to the physical and motor benefits, it facilitates social interaction, emotional experience and the creation of meaningful learning environments that contribute to socio-emotional development. Research indicates that playful activities support intrinsic motivation, creativity, and self-exploration, while promoting peer-to-peer communication and conflict resolution. In this context, emotional intelligence is configured as a fundamental competence, as it allows students to recognize, understand and regulate their emotions in situations of success and failure that are common in the game. In the same way, self-concept is a key element in the construction of the student's personal identity and can be strengthened through cooperative and participatory activities typical of play-based methodologies. Likewise, assertiveness is closely linked to the processes of social interaction that occur during playful dynamics. In recent years, various methodologies active in Physical Education have incorporated play as the axis of the teaching-learning process. These include Game-Based Learning, Teaching Games for Understanding, Sport Educational Model, Gamification and Cooperative Games. These proposals seek to generate meaningful learning experiences that integrate motor development with social and emotional development. However, although there are systematic reviews and meta-analyses on these methodologies, the available evidence is scattered. Therefore, it is pertinent to carry out an umbrella review that synthesizes these studies and offers a global vision of the effects of play-based interventions in Physical Education on emotional intelligence, self-concept and assertiveness.
Diagrama de especiación simulado del indio
(2022) Gómez Martín, José María
Datos de porcentaje precipitado a dos concentraciones: 20 y 40 mg/L
Diagrama de especiación simulado del galio
(2022) Gómez Martín, José María
Datos del diagrama de especiación del galio para 40 mg/L y 20 mg/L
Easily water-synthesisable iron-chloranilate frameworks as high energy and high-power cathodes for sustainable alkali-ion batteries
(2025) Darby, James P.; Cliffe, Matthew J.; Garitaonandia, José S.; Grande-Fernández, Paloma; Morris, Andrew J.; Carretero-González, Javier; Castillo Martínez, Elisabet; Durán Egido, Víctor
Achieving high battery performance from low-cost, easily synthesisable electrode materials is crucial for advancing energy storage technologies. Metal–organic frameworks (MOFs) combining inexpensive transition metals and organic ligands are promising candidates for high-capacity cathodes. Iron-chloranilate-water frameworks are herein reported to be produced in aqueous media under mild conditions. Removal of reticular water from known [Fe2(CAN)3(H2O)4] ⋅ 4H2O yields a new supramolecular metal–organic framework (SMOF), [Fe2(CAN)3(H2O)4]. Removing coordination water, a new 2D honeycomb-like MOF forms, Fe2(CAN)3, stable without counterions and solvent. This MOF adopts the unusual ABC layer-stacking, as determined using a combination of ab initio random structure searching, electron diffraction, and Rietveld refinement of powder XRD data. Magnetometry, Mossbauer and Raman spectroscopy confirm that all three [Fe2(CAN)3(H2O)x]⋅yH2O phases contain HS-Fe3+ and CAN2−, with magnetic ordering temperatures increasing (5→20 K) as the Fe−CAN connectivity increases. The SMOF and MOF show reversible (de)insertion of >4Li+/f.u. at average 2,59 V and 2,76 V vs Li+/Li, respectively. [Fe2(CAN)3] achieves 146 mAh/g at 1 C, thus specific energy (563 Wh/kg) and power (446 W/kg) in Li half-cells competitive with conventional LiFePO4 (~580 Wh/kg and ~450 W/kg). Beyond Li, [Fe2(CAN)3] delivers 394 Wh/kg and 421 Wh/kg, for Na and K half-cells respectively, becoming a competitive cathode for sustainable batteries.
Mechanistic insights and electrochemical performance of microwave-synthesized SnS for K-Ion batteries
(2025) González Barrios, Marta María; Castillo Martínez, Elisabet; Garitaonandia, José S.; García Chamocho, Elena; Ávila Brande, David; Jesús Prado-Gonjal, Jesús; Prado Gonjal, Jesús de la Paz
Regulación de la activación glial por inhibición de la recaptación de noradrenalina como tratamiento alternativo contra la neurodegeneración
(2026) Muñoz Madrigal, José Luis
El presente conjunto de datos es producto del proyecto de investigación 'Regulación de la activación glial por inhibición de la recaptación de noradrenalina como tratamiento alternativo contra la neurodegeneración' (PID2021-123871OB-I00), financiado por el Ministerio de Ciencia e Innovación y desarrollado entre 2022 y 2025. Los datos recogen resultados de expresión génica obtenidos mediante qPCR en el contexto del estudio de la enfermedad de Alzheimer y otras patologías neurodegenerativas, con foco en el papel del sistema noradrenérgico y los procesos neuroinflamatorios. De este proyecto se derivan las publicaciones Gutiérrez, I. L., Yanes-Castilla, C., MacDowell, K. S., Caso, J. R., García-Bueno, B., Ulecia-Morón, C., … Madrigal, J. L. M. (2026). Reboxetine Treatment Reduces Hippocampal Gliosis in the P301S Tauopathy Mouse Model. ASN Neuro, 18(1). https://doi.org/10.1080/17590914.2026.2630485 (handle: https://hdl.handle.net/20.500.14352/133794 ) y Gutiérrez, I. L., Martín-Hernández, D., MacDowell, K. S., García-Bueno, B., Caso, J. R., Leza, J. C., & Madrigal, J. L. M. (2025). Cx3cl1 regulation of gliosis in neuroinflammatory and neuroprotective processes. International Journal of Molecular Sciences, 26(3), 959. https://doi.org/10.3390/ijms26030959 (handle: https://hdl.handle.net/20.500.14352/118191 ), ya depositadas en DOCTA.
Incidencia de las políticas migratorias de la UE en España: matrimonio y familia. Una visión crítica
(El nuevo Pacto de Migración y Asilo a examen: Reflexiones desde la perspectiva de la descentralización territorial y de los derechos fundamentales, 2026) Martínez Rubio, Agustina; Ugartemendia Eceizabarrena, Juan Ignacio; Zelaia Galarza, Maite; Donaire Villa, Francisco Javier; Martinico, Giuseppe
El Reglamento (UE) 2024/1347, de 14 de mayo , que forma parte de un elenco de normas resultantes del nuevo Pacto sobre Inmigración y Asilo, diferencia, en su Preámbulo –considerando 19 –, entre las “relaciones familiares reales” y “los matrimonios o uniones contraídos con el único fin de que la persona interesada pueda entrar o residir en los Estados miembros”; de tal suerte que los beneficiarios de protección internacional, en el marco de este Reglamento, no podrán optar por el mantenimiento de la unidad familiar si, entre otras exigencias, existen indicios sobre la posible existencia de un matrimonio de conveniencia . Esta norma vuelve a incidir en una materia que comenzó a tratarse hace más de cinco lustros: la lucha contra los que se han denominado (entre otros apelativos) matrimonios fraudulentos, simulados o de conveniencia. De ahí que el objeto del presente trabajo sea mostrar y analizar, de un lado, cuál ha sido la “hoja de ruta” llevada a cabo en este campo tanto en España como en la Unión Europea desde una perspectiva cronológica; y, de otro, cómo han afectado a España las normas en materia de inmigración y las relativas el derecho a desplazarse y residir libremente en la UE, junto con las declaraciones del Consejo de la UE y la Comisión Europea. El estudio se divide en cuatro apartados. En ellos se expone, de forma ordenada, la doctrina de la Dirección General de Seguridad Jurídica y Fe Pública, las Resoluciones y/o Comunicaciones de la UE, y la normativa española y de la UE sobre este campo, mencionando algunas Resoluciones del Centro Directivo y sentencias de los tribunales, que, sin ánimo de ser exhaustivos, nos acercan al Derecho aplicado en la materia tratada.
Base de datos del proyecto EnDiversidad55+
(2026) Sánchez Moreno, Esteban
Datos del artículo: Food anticipation, ghrelin, and anxiety in juvenile goldfish: evidence for a mesolimbic dopaminergic link?
(2026) Herrera Castillo, Lisbeth Carolina; Azaoum-Salhi, Houda; Chivite-Alcalde, Mauro; Manuel Míguez, Jesús; Lozano Rebollo, Daniel; López Redondo, Jesús María; Pedro Ormeño, Nuria De; Isorna Alonso, Esther
Food anticipatory activity (FAA) is described as a circadian increase in locomotor activity preceding a predictable meal. In goldfish, FAA has been shown to reflect an anxiety-like state associated with food expectation, which is not solely driven by circadian timing or passive metabolic signals related to prolonged fasting. This anxiogenic component is induced by ghrelin and reversed by ghrelin antagonism. Although ghrelin is known to regulate FAA and to engage dopaminergic reward circuits in mammals, the integration of ghrelin, dopamine, and anxiety within the context of FAA has not been established. Here, we investigated whether dopamine mediates ghrelin-induced anxiety during FAA in goldfish (Carassius auratus) using complementary behavioural, neurochemical, and transcriptional approaches. Pharmacological blockade of dopamine receptors during FAA revealed a prominent role of D2-like receptors in anxiety responses, although D1-like receptors are also involved. Consistently, ghrelin-induced anxiety-like behaviour was selectively reversed by D2 antagonism. Moreover, these D2-receptors were abundant in telencephalic regions associated with motivational processing. Furthermore, ghrelin increased dopamine and DOPAC levels in the telencephalic accumbens-like region and induced c-fos, tyrosine hydroxylase, and ghrelin receptors expression in the posterior tuberculum region, a key dopaminergic nucleus in teleost equivalent to the ventral tegmental area (VTA). Together, these results demonstrate that ghrelin recruits a dopaminergic pathway to modulate anticipatory anxiety during FAA in goldfish, with a predominant role of D2-like receptors. Our findings support the existence of a ghrelin–dopamine pathway in teleost that is functionally analogous to the mammalian ghrelin–VTA–dopamine circuit, suggesting an evolutionarily conserved mechanism linking metabolic signals, reward processing, and affective states.
Raw data for publication Exploring hollandite-type K y V x Ti8- xO16 (0.25 ≤ x ≤ 2) as electrode materials in potassium-ion batteries (KIBs)
(2025) Nieto Simón, Juan Andrés; González Barrios, Marta María; Gómez Herrero, Adrián; Fernández-Díaz, María Teresa; Prado Gonjal, Jesús de la Paz; Castillo-Martínez, Elizabeth
Publicaciones seriadas (Patrimonio Digital Complutense)
(2026) Biblioteca de la Universidad Complutense de Madrid
Como parte de una institución dedicada a la enseñanza de la ciencia y a la investigación desde su fundación, la BUC cuenta con una importante colección de las principales revistas científicas europeas surgidas entre los siglos XVII-XIX. Por otro lado, conserva una importante colección de prensa. Algunos de los títulos más relevantes de ambos fondos se encuentran en esta colección digital, cuyos metadatos se ofrecen en este dataset.

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