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The Potential Mediating Role of Good Mental Health on the Relationship Between Low Physical Activity and High Screen Time with Executive Functions in Chilean Children and Adolescents
No full textBackground: Childhood and adolescence are increasingly recognized as life stages that pose specific challenges for treating and promoting mental health and cognitive development. Objective: The objective of the present study was to determine the potential mediating role of good mental health in the association between an unhealthy lifestyle (i.e., low physical activity (PA) and high screen time (ST)) with executive functions (EFs) (i.e., attention, inhibition, cognitive flexibility, and working memory) in children and adolescents. Methods: A cross-sectional investigation with 625 students aged 10–17 years participated. The Krece Plus questionnaire (lifestyle, PA, and ST), Depression Anxiety and Stress Scale (DASS-21, metal health), and CogniFit (EFs) were used in the present study. Results: Good mental health presented a partial mediating role in the relationship between a bad lifestyle and EFs. Likewise, a bad lifestyle was linked inversely to attention (β −37.45, p = 0.002), the executive function of cognitive flexibility (β −85.91, p < 0.001), inhibition (β −60.16, p < 0.001), and working memory (β −75.73, p < 0.001). Conclusions: Good mental health acts as a relevant mediator in child and adolescent cognitive development. These results reinforce the need to promote active and healthy lifestyles, as well as strategies that promote psychological wellbeing from an early age. Schools and families play an important role as protective agents and promoters of integral development; it is therefore recommended to implement intervention programmes that strategically address the physical activity, mental health, and digital habits of this population.ANID - FONDECYT (Postdoctoral project Folio: 3250451
Croisades tardives et diplomatie. En guise de conclusion
No full textConclusions of the volume Diplomaties de croisade (XIVe-début XVIe siècle). Communication, négociation et propagande, reflecting on the role of diplomacy within the later crusades and proposing the acceptance of the existence of "diplomatic crusades" on the basis that the crusade is the goal and not the (military) means
Association Between Periodontitis and Cancer: A Perspective Review of Mechanisms and Clinical Evidence
No full textChronic periodontitis has emerged as a potential modifiable risk factor for several tumors,
yet its role remains underexplored beyond epidemiological associations. This perspective
review examines the immunological and molecular interplay between periodontitis and
various cancers—including prostate, colorectal, oral squamous cell carcinoma, and oral
potentially malignant disorders—highlighting shared inflammatory mediators and immune
dysregulation. Special attention is given to immune cell profiles, cytokine expression,
dysbiosis, and common miRNA signatures. Recent evidence suggests that periodontitis
may act not only as a co-factor in tumor development but also, in some contexts, as a marker
of therapeutic response, particularly in patients undergoing immune checkpoint inhibitor
therapy. In our view, future research should prioritize mechanistic studies to define
common immune–inflammatory pathways and clarify whether periodontitis functions
as a field cancerization process or as a facilitator of malignant transformation in already
compromised tissues. The relationship between cancer and periodontitis underscores the
need to integrate oral health into oncologic care and immunotherapy management
Complementary probes of warped extra dimension: colliders, gravitational waves and primordial black holes from phase transitions
No full textWe study the formation of primordial black holes (PBHs) and stochastic gravitational waves background (SGWB) produced by the supercooled radion phase transition (PT)
in warped extra-dimension models solving the gauge hierarchy problem. We frst determine
how the SGWB and the produced PBH mass and abundance depend on the warped model’s
infrared energy scale ρ, and the number of holographic colors N. With this fnding, we recast
on the plane {ρ, N} the current SGWB and PBH constraints, as well as the expected parameter reaches of GW detectors, as LISA and ET, and the gravitational lensing ones, such as
NGRST. On the same plane, we also map the collider bounds on massive graviton production,
and cosmological bounds on the radion phenomenology. We fnd that, for N ∼ 10 − 50, the
considered PT predicts a PBH population mass in the range MPBH ∼ (10−1 − 10−25)M⊙ for
ρ ∼ (10−4 −108
) TeV. In the range ρ ≃ (0.05−0.5) GeV, it can explain the recent SGWB hint
at nHz frequencies and generate PBH binaries with mass MPBH ∼ (0.1 − 1)M⊙ detectable
at LISA and ET. The experimentally allowed mass region where PBHs can account for the
whole dark matter abundance, and are produced with a tuning ≲ 10−4
, corresponds to 10 TeV
≲ ρ ≲ 104 TeV. These PBHs can compensate the lack of natural candidates for dark matter
in warped extra dimensional models. Such a region represents a great science case where
forthcoming and future colliders like HE-LHC and FCC-hh, gravitational-wave observatories
and other PBHs probes play a key complementary role
Genre and lexical distribution of subject-characterizing -ly adverbs
No full textSubject-orientation and subject-relatedness have been de!ned as properties of adverbs that have
the ability to characterize the subject, the former simultaneously with the expression of adverbial
meaning as circumstance. According to the de!nition of subject-related -ly adverbs as subject-oriented adverbs that can only characterize the subject, subject-relatedness would be expected to be dependent on subject-orientation, also because it is farthest from the prototypical function and meaning of -ly words and well into the prototypical function and meaning of adjectives. As this syntactic
and semantic behavior is not signaled formally, it parallels, in principle, what happens in conversion, where syntactic transposition is without phonological change. Based on the evidence of "9,7%9
bigrams extracted by lemma from the Corpus of Contemporary American English, this paper analyzes
the genre distribution of subject-oriented and subject-related -ly words, and their most relevant
lexical features. The results show similarities and also di'erences in the behavior of subject-orientation and subject-relatedness as regards text genre distribution and in their formation from various types of adjectival bases. &e interpretations of these results are manifold, within and outside
word-formation processes.Spanish State Research Agency - Spanish Ministry of Science, Innovation and Universities (PID2020-119851GB-I00
Eco-Friendly Extraction of Olive Leaf Phenolics and Terpenes: A Comparative Performance Analysis Against Conventional Methods
No full textThe present study focuses on recovering phenolic compounds and terpenes from olive
leaves, which are generated as by-products during olive oil processing. To this end,
conventional extraction/maceration (CE) and advanced extraction techniques such as
subcritical water extraction (SWE), pressurized fluid extraction (PLE) and ultrasoundassisted extraction (UAE) were employed to compare and determine the most effective
procedure. The phenolic and terpenoid composition of the extracts revealed a total of
33 compounds in HPLC-QTOF-MS analysis. According to these findings, the optimal
extraction techniques for the maximum recovery of secoiridoids from olive leaves were
PLE and UAE, with no significant difference between them (21.9891 ± 2.5521 mg/g DW
and 21.0888 ± 1.3494 mg/g DW, respectively). Regarding to flavonoids, UAE was the
most effective extraction technique, yielding 4.9837 ± 0.6739 mg/g DW. However, SWE
recovered the highest amount of phenolic alcohols (7.4201 ± 0.9848 mg/g DW), which
could be due to degradation of the secoiridoids during extraction. Conversely, UAE
was more successful than the other techniques for the extraction of the terpene family
(0.7373 ± 0.0601 mg/g DW). The present study therefore focuses on comparing different
extraction techniques for revalorizing olive leaves as a source of bioactive compounds,
specifically polyphenols and terpenes, due to their beneficial health properties.MCIN/AEI/10.13039/501100011033 - European Union
NextGeneration EU/PRTR (TED2021-132489A-I00)University of Granada (Grant PPJIB2023-121
La fotografía escenificada (Stage Photography) y/o fotografía construida (FoCo): Análisis A/R/Tográfico sobre su metodología de creación, investigación y aprendizaje
No full textEsta investigación explora la Fotografía Construida
(FoCo) como paradigma epistemológico, creativo y
pedagógico, analizando su capacidad para generar
conocimiento a través de la praxis artística en diálogo con
la investigación académica y la docencia. Partiendo de un
enfoque a/r/tográfico –que articula los roles de artista,
investigador y docente–, el estudio pretende demostrar
cómo la FoCo trasciende su condición de género fotográfico
para erigirse en una estrategia que, aplicada al mundo de
la pedagogía artística permite disponer un proceso
(método) de enseñanza-aprendizaje capaz de cuestionar
narrativas hegemónicas, resignificar imaginarios colectivos
y democratizar la producción de saberes en el ámbito de la
Educación Artística y, en general, en Humanidades y
Ciencias Sociales.
El trabajo se estructura en tres ejes:
1. Fundamentación teórico-conceptual: Se traza una
genealogía crítica de la Fotografía Construida desde sus
orígenes en el siglo XIX hasta su consolidación
contemporánea, identificando sus cuatro características definitorias: (a) planificación meticulosa, (b) muy alto
grado de control técnico, (c) densidad narrativa, y (d)
hibridación intermedial. Se analiza su evolución en la era
digital, donde herramientas como la inteligencia artificial
reconfiguran nociones de autoría y veracidad, ampliando
su potencial crítico frente a la cultura algorítmica.
2. Dimensión metodológico-procesual: La
investigación articula dos vertientes complementarias:
por un lado, el estudio comparativo de tres referentes
paradigmáticos (Gregory Crewdson, Jeff Wall y Joel-
Peter Witkin) que permiten sistematizar los procesos
creativos, desde la conceptualización hasta la
materialización final; por otro, la producción artística
propia que se constituye como núcleo investigador
(investigación artística), operando simultáneamente
como objeto de estudio, método de indagación y corpus
de validación de los hallazgos teóricos. Siguiendo los
principios de la Investigación Basada en Artes y la
a/r/tografía, el proceso creativo se transforma en un
laboratorio metodológico que integra tres dimensiones: el
desarrollo de un proyecto fotográfico específico que
materializa los conceptos estudiados, la documentación autoetnográfica del proceso mediante registros
multimodales, y la validación académica de la práctica
artística bajo criterios de rigor específicos para la
investigación en artes visuales.
3. Aplicación pedagógica: Implementada en
contextos educativos, como herramienta para la
educación visual crítica a través de los principios de las
Metodologías Artísticas de Educación (MAE). Esta
aproximación fomenta en el alumnado habilidades para
deconstruir códigos culturales mediante escenificaciones
fotográficas, empleando la creación artística no solo
como resultado sino como proceso investigativo en sí
mismo. Proyectos como la reinterpretación de cuentos
infantiles, mitos históricos u obras artísticas evidencian
su capacidad para transformar el aula en un laboratorio
de identidades, donde los estudiantes articulan
narrativas contrahegemónicas mediante la manipulación
deliberada de símbolos y técnicas visuales.
Las conclusiones de esta investigación evidencian que la
Fotografía Construida constituye un lenguaje visual
autónomo con legitimidad epistemológica equiparable a los
discursos académicos tradicionales, validando así la imagen como vehículo de cognición y producción de
conocimiento en el ámbito contemporáneo. Su integración
sistemática no solo expande las fronteras metodológicas de
la investigación artística, sino que reconfigura
fundamentalmente los parámetros de rigor académico,
demostrando empíricamente que una producción
fotográfica escenificada, cuando se articula mediante
protocolos investigadores estructurados, cumple con los
criterios de originalidad, contribución y profundidad
conceptual exigidos en la investigación educativa,
estableciendo un paradigma metodológico que legitima la
creación visual como forma válida de conocimiento
académico.This research explores Constructed Photography
(FoCo) as an epistemological, creative, and pedagogical
paradigm, analyzing its capacity to generate knowledge
through artistic praxis in dialogue with academic research
and teaching. Starting from an a/r/tographic approach-which
integrates the roles of artist, researcher, and teacher-the
study aims to demonstrate how FoCo transcends its
condition as a photographic genre to become a strategy
that, when applied to the world of art pedagogy, enables a
teaching-learning process capable of questioning
hegemonic narratives, resignifying collective imaginaries,
and democratizing knowledge production in the field of Art
Education and, more broadly, in the Humanities and Social
Sciences.
The work is structured around three axes:
1. Theoretical-conceptual foundation: A critical
genealogy of Constructed Photography is traced from its
origins in the 19th century to its contemporary consolidation,
identifying its four defining characteristics: (a) meticulous planning, (b) very high degree of technical control, (c)
narrative density, and (d) intermedial hybridization. Its
evolution in the digital era is analyzed, where tools such as
artificial intelligence reconfigure notions of authorship and
veracity, expanding its critical potential against algorithmic
culture.
2. Methodological-procedural dimension: The
research articulates two complementary strands: on one
hand, the comparative study of three paradigmatic
references (Gregory Crewdson, Jeff Wall, and Joel-Peter
Witkin) that allow systematizing creative processes from
conceptualization to final materialization; on the other, the
author's own artistic production, which constitutes the
research core (artistic research), simultaneously operating
as an object of study, method of inquiry, and corpus for
validating theoretical findings. Following the principles of
Arts-Based Research and a/r/tography, the creative process
becomes a methodological laboratory integrating three
dimensions: the development of a specific photographic
project that materializes the studied concepts,
autoethnographic documentation of the process through multimodal records, and academic validation of artistic
practice under specific rigor criteria for visual arts research.
3. Pedagogical application: Implemented in
educational contexts as a tool for critical visual education
through the principles of Artistic Education Methodologies
(MAE). This approach fosters in students the skills to
deconstruct cultural codes through photographic staging,
employing artistic creation not only as a result but as an
investigative process in itself. Projects such as the
reinterpretation of children's tales, historical myths, or
artistic works demonstrate its capacity to transform the
classroom into a laboratory of identities, where students
articulate counter-hegemonic narratives through the
deliberate manipulation of symbols and visual techniques.
The conclusions of this research show that Constructed
Photography constitutes an autonomous visual language
with epistemological legitimacy comparable to traditional
academic discourses, thus validating the image as a vehicle
for cognition and knowledge production in the contemporary
field. Its systematic integration not only expands the
methodological boundaries of artistic research but fundamentally reconfigures academic rigor parameters,
empirically demonstrating that a staged photographic
production, when articulated through structured research
protocols, meets the criteria of originality, contribution, and
conceptual depth required in educational research,
establishing a methodological paradigm that legitimizes
visual creation as a valid form of academic knowledge.Tesis Univ. Granada
El formato túnel en el libro de artista como experiencia de lectura inmersiva y sensorial
No full text"Entrañas" es un libro túnel basado en el cuento popular "El lobo y los siete cabritillos", que propone una reinterpretación tridimensional y simbólica de la historia. En esta obra, el libro representa el estómago del lobo, donde los cabritillos permanecen ocultos, permitiendo al espectador adentrarse literalmente en la narrativa. El formato túnel ofrece una lectura visual en capas, que combina simultaneidad narrativa y profundidad espacial. Este proyecto busca renovar el interés por los cuentos tradicionales mediante una experiencia sensorial e inmersiva. La interacción física con el libro (desplegarlo, manipularlo, explorarlo) fomenta una conexión emocional más intensa con la obra. "Entrañas" fusiona relato, diseño y simbolismo en un objeto artístico que invita no solo a leer una historia, sino a vivirla desde una perspectiva más envolvente y participativa."Entrañas" is a tunnel book based on the folk tale "The Wolf and the Seven Little Goats", which proposes a three-dimensional and symbolic reinterpretation of the story. In this work, the book represents the wolf’s stomach, where the goats remain hidden, allowing the viewer to literally enter the narrative. The tunnel book format offers a layered visual interpretation, combining narrative simultaneity and spatial depth. This project seeks to renew interest in traditional tales through a sensorial and immersive experience. Physical interaction with the book (unfolding it, handling it, exploring it) fosters a deeper emotional connection with the work. "Entrañas" fuses narrative, design, and symbolism into an art object that invites not only the reader to read a story, but also to experience it from a more immersive and participatory perspective.Universidad de Granada. Máster en Dibujo: Ilustración, Cómic y Creación Audiovisual. Trabajo Fin de Máster. Curso académico 2024-202
Propuesta de implantación de un impuesto medioambiental sobre la generación de ciertos criptoactivos
No full textAcuerdo del editorLa presente aportación tiene como finalidad la de contribuir a la exploración de la conveniencia u oportunidad de someter a la actividad de generación de criptoactivos a un gravamen específico. En particular, esta propuesta queda referida a aquellos que tienen la cualidad de fungibles y, más concretamente, a la generación de las criptomonedas. No obstante, por razones de practicidad y siguiendo la estela marcada por la normativa europea más reciente (a la que se hará referencia más adelante), se ha optado por utilizar el término criptoactivos.
Se realiza una estructuración completa del impuesto propuesto y se analizan las relaciones con otras figuras preexistentes y su compatibilidad con el ordenamiento jurídico, teniendo presente la normativa de la Unión Europea.Ministerio de Economía y Competitivida
Using a portable Raman-SORS spectrometer as an easy way to authenticate high oleic sunflower oil
No full textNowadays, due to the high price of virgin olive oil, sunflower oil (SFO) is commonly used for cooking. Among its
commercial types, High Oleic Sunflower Oil (HOSFO) is the most suitable because of its high oleic acid concentration, it excellent properties, which enhances its quality but also increases its price. To protect the consumer
who buys a product at a higher price due to its added value in the form of a higher amount of oleic acid, it is
necessary to authenticate the different commercial types of SFO throughout the processing and distribution
chain. Therefore, the producer and the various distribution links up to the final point of sale and the official
administration need tools to verify and ensure that the customer is buying the product he really wants. There is
no study in the bibliography that deals with the differentiation (authentication) between the different types of
SFO. In this article, using instrumental fingerprints obtained by Spatially Offset Raman Spectroscopy (SORS) and
processed with different chemometric tools, it has been possible to authenticate the different commercial types of
these oils.
Chemometric analysis of the SORS fingerprint matrix revealed the natural grouping (HCA and PCA) of samples
and the possible discrimination/classification based on characteristic Raman spectral regions associated with
fatty acids occurrence.
All developed models (PLS-DA, SVM, and SIMCA) showed reliable qualimetric performance (sensitivity,
specificity, and low false positive/negative rates among others). They were able to authenticate HOSFOs
effectively, but only SIMCA model allowed successfully discriminate among all types of SFOs