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Graphene-enhanced perovskite hybrid photodetectors with ultra-sensitivity and stability via inkjet printing
No full textMetal-halide perovskites are promising materials for optoelectronic applications due to their strong light absorption, tunable bandgaps, and solution-processability. However, their use in photodetectors is often limited by low carrier mobility and degradation over time as compared to advanced 2D nano-materials. Here, we report ultrasensitive photodetectors based on inkjet-printed nanocrystalline films of mixed-phase raisin bread CsPbBr3/Cs4PbBr6 perovskite integrated on graphene platforms. The combination of a photoconductive mixed-phase perovskite and a high-mobility 2D graphene channel enables efficient photogating and broadband charge transport. This device architecture achieves exceptional performance with responsivities surpassing 5.7 × 104 A W-1 and detectivities exceeding 1016 Jones at 312 nm. The enhanced performance arises from the synergistic interplay between charge confinement in the perovskite domains and ultrafast carrier extraction by graphene. Moreover, the fabricated photodetectors exhibit remarkable operational stability, a longevity primarily attributed to the unique composite raisin-bread architecture of the inkjet-printed perovskite films. This work offers a scalable and sustainable strategy for high-performance broadband photodetection.This work was funded by the Ministry of Science and Innovation of Spain under the projects LIP-FREE (PID2022-140978OB-I00) and PIXIE-SENS (PDC2023-145804-I00). This work has been partially supported by the PROMETEO Program from the Generalitat Valenciana (Q-solutions project reference CIPROM/2021/078). Junaid Khan and J.Marí-Guaita acknowledges the financial backing from grant JDC2024-054497-I and JDC2022-049260-I, respectively funded by the Spanish Ministry of Science and Innovation and by the European Union Next Generation EU/PRTR. This work was also supported by the EU Next Generation through the Recovery and Resilience Plan for Slovakia under the project No. 09I05-03-V02-00030, Research of fabrication technology for low-cost oxide-based semiconductor electronic devices for IoT and sensor applications
Los inicios de la automoción en la provincia de Castellón (1909-1953). Desarrollo y elementos decisivos.
No full textLa historia de la automoción en la provincia de Castellón, desde sus orígenes hasta el triunfo del vehículo utilitario (1909-1953), había sido completamente soslayada por los investigadores. La presente tesis viene llenar un hueco en el conocimiento y la visión de la evolución social de dicha provincia en aquella época. Es un período no muy lejano en términos históricos, pero sí en términos vitales, por lo que muchos aspectos claves que ayudarían a su exégesis aún permanecen oscuros. Esta investigación esclarece los condicionantes previos al fenómeno de la automoción, entendidos como compendio del marco físico, el marco humano, la superestructura y la infraestructura provinciales propias. Posteriormente aborda la llegada del automovilismo a los municipios provinciales, la extensión y la pervivencia del fenómeno, así como su arraigo; y la naturaleza de los vehículos matriculados en la provincia estudiando sus tipologías, su uso, sus marcas y sus modelos.When it comes to the history of the automotive in the province of Castellon, since its origins to the trump of utility vehicle (1909-1953), this subject has been totally overlooked by investigators as something worth of being attended. I feel strongly that, for this reason, the current doctoral thesis fills a gap in our understanding concerning of the social evolution of this province, and offers information that will help in order to complete the view that, from today's perspective, can be gained of that period. The time studied was particularly turbulent and traumatic, “age of catastrophes”, to quote Eric Hobsbawm. These are times that, although not so far removed from the present in historical terms, are certainly so in vital terms, and many key aspects that would aid to their exegesis still remain obscure.Programa de Doctorat en Història i Estudis Contemporani
Actuación de enfermeras(os) de Atención Primaria en la prevención del suicidio adolescente: impacto de un programa formativo para sus necesidades.
No full textLa actuación de enfermeras y enfermeros de Atención Primaria de Salud es vital para la prevención del suicidio adolescente. Objetivo: Evaluar el impacto de un programa formativo, basado en necesidades de enfermeras y enfermeros de Atención Primaria de Salud, para su actuación en la prevención del suicidio adolescente. Metodología: Estudio realizado en tres fases, a través diseño fenomenológico y cuantitativa cuasi experimental. Resultados: La actuación de enfermeras, se encuentra centrada en la detección y no en la prevención, necesitan fortalecer sus competencias. A través de un programa formativo se impacta en sus conocimientos de la temática y habilidades para establecer la relación terapéutica, pero no en sus creencias actitudinales sobre este. Conclusiones: es necesario elaborar una estrategia integrada de formación continua, herramientas y recursos de gestión institucional, así como también, adecuación del modelo de atención, para potenciar su actuación en la prevención del suicidio adolescente.Adolescent suicide is a public health challenge. Primary care nurses have a key opportunity to prevent it during comprehensive health checks. This study evaluated the impact of a training program designed according to their needs. It was developed in three phases: qualitative, quasi-experimental, and questionnaire application. Initially, there was a limited view of their role, focused on case referrals, and the need to strengthen management skills and tools. The program improved knowledge and skills for establishing a therapeutic relationship, although it did not significantly change attitudinal beliefs about suicide. In the long term, only relational skills are perceived as applicable. It is concluded that it is essential to strengthen competencies at all levels of prevention and provide adequate resources for effective action.Programa de Doctorat en Ciències de la Infermeri
β2-Adrenergic Receptor Modulation of Astrocyte-Neuron Lactate Shuttle During Recognition Memory Formation: Behavioral and Molecular Studies
No full textDoctorat internacionalThis thesis proposes an integrative framework linking noradrenergic neurotransmission with astrocyte-mediated metabolic mechanisms in long-term declarative memory, focusing on object recognition memory (ORM). Recognition memory relies on recollection and familiarity, supported primarily by the hippocampus and perirhinal cortex, respectively. Using the Novel Object Recognition task, the study demonstrates that noradrenaline (NA) critically modulates ORM through β₂-adrenergic receptors (β₂-AR). Behavioral experiments reveal sex-dependent encoding strategies and show that enhancing NA facilitates, while β₂-AR blockade impairs, ORM. At the cellular level, NA induces astrocytic lactate production via β₂-AR signaling, linking neuromodulation to the astrocyte–neuron lactate shuttle (ANLS). Disruption of lactate transport abolishes NA-mediated memory enhancement, whereas exogenous lactate rescues β₂-AR blockade-induced deficits. Collectively, these findings establish astrocytic metabolism as an essential mediator of NA-dependent, non-emotional memory formation.Programa de Doctorat en Psicologi
El tractament periodístic sobre l'espai comunicatiu al País Valencià: Anàlisi de la cobertura mediàtica en la premsa escrita a propòsit de la fi de RTVV
No full textEl tancament de Radiotelevisió Valenciana (RTVV) el 2013, amb la fi definitiva de les emissions de Canal 9, representa un episodi de gran rellevància política, mediàtica i simbòlica en la història contemporània valenciana. L’estudi analitza la cobertura periodística que la premsa generalista va dedicar a aquest procés mitjançant un enfocament longitudinal i comparatiu, posant en relleu el paper actiu dels mitjans en la construcció simbòlica de la realitat. Basant-se en els postulats de la Teoria de l’Agenda Setting i de la sociologia constructivista dels mitjans, la investigació identifica patrons de cobertura, divergències editorials i mecanismes de construcció del relat que configuraren la percepció pública del tancament. A partir d’una base de dades pròpia, el treball ofereix una anàlisi descriptiva i interpretativa que contribueix a comprendre el significat polític i comunicatiu de l’esdeveniment, i advoca per mantenir viu el debat científic i social sobre la gestió i el futur dels mitjans públics valencians.The closure of Radiotelevisió Valenciana (RTVV) in 2013, with the definitive end of Canal 9's broadcasts, represents a politically, mediatically, and symbolically significant episode in contemporary Valencian history. The study analyzes the journalistic coverage that general-interest newspapers devoted to this process through a longitudinal and comparative approach, highlighting the active role of the media in the symbolic construction of reality. Based on the postulates of Agenda Setting Theory and constructivist media sociology, the research identifies coverage patterns, editorial divergences, and narrative construction mechanisms that shaped the public perception of the closure. Drawing on its own database, the work offers a descriptive and interpretive analysis that contributes to understanding the political and communicative significance of the event, and advocates for keeping the scientific and social debate about the management and future of Valencian public media alive.Programa de Doctorat en Ciències de la Comunicaci
Generative artificial intelligence in venture creation learning: A new pedagogy of partnership
No full textThis study investigates the impact of generative artificial intelligence (GenAI) on entrepreneurial learning within structured university venture creation programmes. Employing the prospecting and establishing nexus framework, and drawing on the stimulus-organism-response model and construal level theory, the research analyses how GenAI affects students’ psychological distance from entrepreneurship and their learning approaches. Using a mixed-methods design that combines pre- and post-intervention surveys with qualitative data from learning diaries and open responses, the study examines 33 undergraduate students from two venture creation programmes.
The findings indicate that the deliberate and well-structured integration of GenAI substantially reduces students’ psychological distance from entrepreneurship, making entrepreneurial tasks seem more immediate, relevant, and achievable. GenAI serves as both a cognitive scaffold and
a task-focused support tool, encouraging deep and strategic learning orientations, and it dynamically adapts to the changing needs of learners throughout their entrepreneurial journey.
The positive effect on psychological distance is particularly notable among students who adopt deep and strategic learning dispositions. Nonetheless, students also expressed concerns regarding the reliability, transparency, dependence, and ethical issues associated with GenAI.
The study concludes that, embedded within a robust pedagogy, GenAI can transform venture creation programmes, fostering both entrepreneurial mindsets and critical digital literacy
Fertility Problem Inventory: Psychometric Properties and Validation in Spanish Women Undergoing Assisted Reproduction Treatment
No full textThe Fertility Problem Inventory (FPI) is widely used to assess infertility-related stress. Despite its international application, a validated Spanish version is not yet available. Our aim is to assess the psychometric properties, reliability and construct validity evidence of the scores of the FPI Spanish version in women undergoing fertility treatments. 199 Women (mean age = 35.14, SD = 3.86, range 23–45) provided sociodemographic, obstetrics and psychological data. Confirmatory Factor Analyses tested six models (unidimensional and multidimensional) based on the original FPI and previous FPI validations, identifying the optimal structure. Factor loadings, reliability and correlations with anxiety, depression and life satisfaction were also conducted. The original five-factor structure proposed by the original authors showed the best fit. However, items 24, 25 and 28 showed very low factor loadings. The final model with 43 items, removing those with poor factor loading, demonstrated an acceptable model fit (χ2/df = 2.040; CFI = 0.915; TLI = 0.910; RMSEA = 0.073; SRMR = 0.099) and strong internal consistency (α = 0.82–0.87; ω = 0.83–0.87). Higher fertility-related stress was associated with increased anxiety and depressive scores as well as lower life satisfaction. These findings provide initial support of the FPI as a useful tool for assessing infertility-related stress in Spanish women
Adquisición de conocimientos de marketing digital mediante juegos serios: evidencias en contextos educativos y profesionales
No full textCompendi d'articlesLa investigación resultante propone y pone a prueba un modelo unificado que enlaza factores previos a la experiencia —facilidad y utilidad percibidas, junto con la actitud— con factores durante/después del juego —motivación, disfrute y concentración— para explicar la adquisición de conocimientos tras interactuar con The Ecommerce Game™ (juego analógico con contenido en marketing digital). Mediante un análisis de ecuaciones estructurales, se estiman efectos directos e indirectos sobre el rendimiento cognitivo, en contextos universitarios y de empresa. Los resultados muestran la importancia de la actitud como puente del efecto de la facilidad y la utilidad percibidas, y que la calidad de la vivencia lúdica aporta de forma decisiva a las ganancias de conocimiento.The thesis examines digital marketing knowledge acquisition through serious games in higher education and corporate training. It proposes an integrative framework linking pre-game acceptance (perceived ease of use, perceived usefulness and attitude; TAM) with in-game experiential quality (motivation, enjoyment and concentration), and uses the ARCS model to analyse motivational design at work. In a pretest–posttest study with The Ecommerce Game™ and structural equation modelling, attitude mediates the effects of usefulness and ease of use, and experiential quality explains a significant portion of objective knowledge gains. A second study synthesizes evidence and design principles for corporate serious games, highlighting scalability and impact-evaluation issues. A third study applies fsQCA to identify equifinal motivational configurations leading to high engagement and learning under time and heterogeneity constraints. The thesis derives design guidelines based on clear objectives, immediate feedback and debriefing oriented to transfer and performance KPIs.Programa de Doctorat en Màrquetin
Advancing green public procurement in the furniture sector: A proposal of environmental indicators based on type I eco-labels
No full textPublic procurement plays a fundamental role in promoting sustainable and responsible markets, as it represents the largest public buyer in the European Union (EU). However, the environmental criteria for the furniture category within the Green Public Procurement (GPP) framework have remained unchanged since 2017. This paper examines the existing EU GPP criteria and integrates the environmental requirements of five Type I eco-labels programmes (EU Ecolabel, Blue Angel, Nordic Swan, Good Environmental Choice Australia and the Environmental Quality Assurance Label) in order to develop a more ambitious and operational proposal. The resulting framework consists of 34 environmental indicators and a total of 162 detailed criteria, with measurable threshold values aligned with current regulations and high environmental standards. It provides contracting authorities with a structured scoring system that enables transparent and objective verification of whether companies’ offers comply with tender requirements and how far they go beyond minimum thresholds. A sensitivity analysis of alternative scoring distributions (linear, concave and convex) was carried out to examine how different shapes of the scoring curve influence the differentiation among environmental effort levels. Its level of ambition was illustrated through a case study in which the evaluation of a furniture company under both a real tender and the proposed framework demonstrated higher environmental stringency and greater discriminative capacity among bidders. By placing environmental criteria at the core of award decisions and contract conditions, the framework strengthens the role of GPP as a driver of cleaner production in the furniture sector and better aligns public market incentives with EU sustainability objectives and contributes to the broader cleaner production agenda.Funding for open access charge: CRUE-Universitat Jaume
Coaching en salud como intervención de Enfermería para mejorar control y calidad de vida en personas con Diabetes Mellitus tipo II
No full textEl aumento de prevalencia de Diabetes Mellitus tipo 2 (DM2) representa un gran desafío. Para evitar sus complicaciones el control y autocuidado es fundamental, ámbitos en que el rol de Enfermería es esencial para implementar intervenciones efectivas e innovadoras en DM2 como es el coaching en salud. Esta investigación evaluó la efectividad de coaching en salud realizado por Enfermera para lograr control clínico, mejorar la calidad de vida en salud y autocuidado de pacientes con DM2.Es un estudio de tipo longitudinal prospectivo, pre-post intervención, con un solo grupo de 82 participantes. Se observó que el coaching mostró ser una intervención útil para mejorar calidad de vida y promover conductas de autocuidado en pacientes con DM2. Aunque no se lograron cifras ideales de control metabólico, hubo reducciones de hemoglobina glicosilada (HbA1c) y mejoras relevantes en adherencia a tratamiento farmacológico, dieta mediterránea, actividad física y conocimiento de la enfermedad.The increasing prevalence of type 2 diabetes mellitus (T2DM) presents a significant challenge. To prevent complications, control and self-care are fundamental, areas in which the role of nursing is essential for implementing effective and innovative interventions for T2DM, such as health coaching. This research evaluated the effectiveness of health coaching delivered by a nurse in achieving clinical control, improving quality of life, and promoting self-care in patients with T2DM. It is a prospective, longitudinal, pre-post intervention study with a single group of 82 participants. Coaching proved to be a useful intervention for improving quality of life and promoting self-care behaviors in patients with T2DM. Although ideal levels of metabolic control were not achieved, there were reductions in glycated hemoglobin (HbA1c) and significant improvements in adherence to pharmacological treatment, the Mediterranean diet, physical activity, and knowledge of the disease.Programa de Doctorat en Ciències de la Infermeri