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Spatiotemporal Variations in Biophysical Water Quality Parameters: An Integrated In Situ and Remote Sensing Analysis of an Urban Lake in Chile
Full text linkThis study aims to develop and implement a methodology for retrieving bio-optical parameters in a lagoon located in the Biobío region, South-Central Chile, by analyzing time series of Landsat-8 OLI satellite images. The bio-optical parameters, i.e., chlorophyll-a (Chl-a, in mg·m−3) and turbidity (in NTU) were measured in situ during a satellite overpass to minimize the impact of atmospheric distortions. To calibrate the satellite images, various atmospheric correction methods (including ACOLITE, C2RCC, iCOR, and LaSRC) were evaluated during the image preprocessing phase. Spectral signatures obtained from the scenes for each atmospheric correction method were then compared with spectral signatures acquired in situ on the water surface. In short, the ACOLITE model emerged as the best fit for the calibration process, reaching R2 values of 0.88 and 0.79 for Chl-a and turbidity, respectively. This underlies the importance of using inversion models, when processing water surfaces, to mitigate errors due to aerosols and the sun-glint effect. Subsequently, reflectance data derived from the ACOLITE model were used to establish correlations between various spectral indices and the in situ data. The empirical retrieval models (based on band combinations) yielding superior performance, with higher R2 values, were subjected to a rigorous statistical validation and optimization by applying a bootstrapping approach. From this process the green chlorophyll index (GCI) was selected as the optimal choice for constructing the Chl-a retrieval model, reaching an R2 of 0.88, while the red + NIR spectral index achieved the highest R2 value (0.79) for turbidity analysis, although in the last case, it was necessary to incorporate data from several seasons for an adequate model training. Our analysis covered a broad spectrum of dates, seasons, and years, which allowed us to search deeper into the evolution of the trophic state associated with the lake. We identified a striking eight-year period (2014–2022) characterized by a decline in Chl-a concentration in the lake, possibly attributable to governmental measures in the region for the protection and conservation of the lake. Additionally, the OLI imagery showed a spatial pattern varying from higher Chl-a values in the northern zone compared to the southern zone, probably due to the heat island effect of the northern urban areas. The results of this study suggest a positive effect of recent local regulations and serve as the basis for the creation of a modern monitoring system that enhances traditional point-based methods, offering a holistic view of the ongoing processes within the lake.S.Y. and G.V. are grateful for ANID’s support through the Fondecyt Regular
project 1221091. We are also grateful for the support provided by the staff of the EULA center from the
University of Concepcion in data collection at the lake and for the laboratory analysis. S.Y. appreciates
the assistance from Forestal ARAUCO S.A.’s Planning and Continuous Improvement Management
team for their support in supplying equipment and guidance during field activities. G.V. has been
supported through the grant EUR TESS no. ANR-18-EURE-0018 in the framework of the Programme
des Investissements d’Avenir. D.T. extends appreciation to Professor César Rubén Fernández De
Villarán at the University of Huelva for his support during a stay in Spain and acknowledges the
AUIP for facilitating this mobility experience. X.P. is the recipient of an ICREA Academia Excellence
in Research Grant (2023–2027). Landsat Surface Reflectance products were downloaded from the U.S.
Geological Survey. We are grateful to the reviewers for comments that greatly improved this article.Ciencias Agroforestale
El lavado de dinero y la recuperación de activos en México
Full text linkDerivada de las directrices internacionales, México ha centrado su atención en el delito de lavado de dinero, llamado operaciones con recursos de procedencia ilícita, convirtiéndolo en uno de los ejes fundamentales de su política criminal, lo que constituye una evidente manifestación expansiva del derecho penal, rompiendo los postulados de un derecho penal garantista, de carácter subsidiario y de mínima intervención, convirtiendo al derecho penal en un mero instrumento político de represión, confundiendo con ello el correspondiente objeto del delito, con el objeto de tutela de la norma penal, ninguna reforma penal puede ser aceptada si no se encuentra perfectamente encaminada a la verdadera protección de un bien jurídic
Needs and Expectations of Long-Term Cancer Survivors: Multi-Centre Study Protocol
Full text linkCancer is a social issue as its outreach affects not only mortality (it is the second cause of
death in our environment) but also the costs due to morbidity and the distress it causes, as well as
the losses and consequences in personal, family, work, and even social areas. This study is trying to
find out the health needs of long-term cancer survivors and their perceptions and expectations of
the care they received during their survival stage. For this, a joint, cross-sectional descriptive study
with a qualitative and quantitative approach has been designed. For the qualitative approach, we
have used different focus groups representing different geographical areas of the Spanish territory.
For the qualitative approach, we have used a validated questionnaire. This study will provide a
better knowledge of the quality of life of these patients, as well as their level of unmet and even
unexpressed needs, in order to develop effective strategies and interventions that allow for the
implementation of adapted care plans that include such unexpressed needs. This study will also
allow for the creation and development of assessment methods for health results from the patient’s
perspective and experience. These issues require a multidisciplinary, complex approach. These
survivors may require not well-known health services, as the number of these patients has grown
recently, and their survival time is also longer. This research explores a wider and more thorough
perspective of long-term cancer survivors’ needs, experiences, and expectations to be achieved.Departamento de Biología Ambiental y Salud Públic
The Beauty of Clay: Exploring contemporary Ceramic Art as an Aesthetic Medium in Education
Full text linkEl desarrollo del arte cerámico como medio estético en la educación china es un aspecto significativo del sistema educativo contemporáneo de las bellas artes. Este estudio exploró la situación contemporánea de las artes cerámicas en la educación y su vinculación con el placer estético en el contexto de China. Las dimensiones consideradas en este estudio incluyen la integración de las artes cerámicas en el plan de estudios de las universidades chinas, la función edu- comunicativa de las artes cerámicas, las características estéticas del arte cerámico y el papel de las herramientas digitales modernas en la difusión del arte y la artesanía asociados a la arcilla. Para cumplir los objetivos del estudio y llegar a una conclusión eficiente, este estudio empleó un enfoque cualitativo. Con este enfoque, se presentó un panorama general de la enseñanza de la cerámica en China utilizando datos primarios y secundarios, donde los primarios procedían de entrevistas con informantes de universidades pertinentes. Los hallazgos del estudio subrayan que el arte cerámico es un aspecto significativo de la educación artística contemporánea china en sus universidades, que tiene el doble objetivo de desarrollar las habilidades artísticas de los estudiantes y también potenciar la función edu-comunicativa del arte cerámico representativo de la cultura china. Los resultados revelaron que el arte cerámico no solo contenía elementos estéticos, sino que también era una fuente primordial de creación de placer estético, ya que desempeñaba el papel de medio estético en la educación. Era evidente que, debido a su finalidad estética, el arte cerámico demostraba las nociones del “Arte por crear Arte”. También se ha comprobado que las herramientas digitales desempeñan un papel importante a la hora de innovar en la enseñanza del arte cerámico y de difundir las técnicas de este arte. Las conclusiones de este trabajo tienen numerosas implicaciones para el personal y los profesionales de las instituciones chinas de bellas artes, especialmente para aquellos que tienen planes de estudio relacionados con el arte cerámicoThe development of ceramic art as an aesthetic medium in Chinese education is significant aspect of contemporary fine arts education system. This study explored the status of contemporary status of ceramic arts in education and its linkage with aesthetic pleasure within the context of China. The dimensions considered in this study included integration of ceramic arts in the curriculum of Chinese universities, edu-communicative function of ceramic arts, the aesthetic characteristics of ceramic art and role of modern digital tools in spreading the art and craft associated with clay. To fulfill the aims of study and to reach an efficient conclusion, this study employed a qualitative approach. Using this approach, an overview of Chinese ceramic education was presented using both primary and secondary data, where the primary data was derived from interviews with informants from relevant universities. The findings of the study highlight that ceramic art is a significant aspect of contemporary Chinese arts education in its universities, which has the dual objective of develop artistic skills of students and also enhance the edu-communicative function of the ceramic art representing the Chinese culture. The findings revealed that ceramic art not only caried aesthetic elements but it was also a prime source of creating aesthetic pleasure as it played the role of aesthetic medium in education. It was evident that due to its aesthetic purpose, ceramic art demonstrated the notions of ‘Art for Art’s sake’. It has also been found that digital tools play a significant role in bringing innovation in ceramic art education and spread the skills of clay-art. The findings of this paper have numerous implications for the personnel and practitioners of Chinese fine arts institutions especially those who have curriculum related to ceramic ar
Detección de anomalías con agrupación espacial de aplicaciones con ruido basada en densidad (DBSCAN) para detectar transferencias electrónicas potencialmente fraudulentas
No full textMost anomaly detection models are developed by using expert system methods that mimic
human experts. The process to capture the expertise honed by fraud examiners is complicated and
practically challenging, often resulting in suboptimal models. This study proposes a clustering-based
model that captures hidden characteristics of potentially fraudulent wire transfers with less human
intervention and expertise. Clustering methods classify and group observations with similar
characteristics, excluding anomalies from major clusters. The choice of a clustering method and its
parameters is often subjective and significantly affects a set of resulting clusters. In order to reduce
the subjectivity of a clustering method while retaining its strength, this study proposes a clustering
model with Density Based Spatial Clustering of Applications with Noise (DBSCAN) to detect
potentially fraudulent wire transfers of an insurance company. The results show that the DBSCAN
models identifies hidden relationships between the variables not only included but also excluded for
the modeling with noise wire transfers while less human intervention is needed for clustering
parameter selections.La mayoría de los modelos de detección de anomalías se desarrollan mediante el uso de métodos de sistemas expertos que imitan a los expertos humanos. El proceso para capturar la experiencia perfeccionada por los examinadores de fraude es complicado y desafiante en la práctica, lo que a menudo resulta en modelos subóptimos. Este estudio propone un modelo basado en agrupaciones que captura características ocultas de transferencias electrónicas potencialmente fraudulentas con menos intervención y experiencia humana. Los métodos de agrupamiento clasifican y agrupan observaciones con características similares, excluyendo anomalías de los grupos principales. La elección de un método de agrupación y sus parámetros es a menudo subjetiva y afecta significativamente al conjunto de agrupaciones resultantes. Para reducir la subjetividad de un método de agrupación y al mismo tiempo conservar su solidez, este estudio propone un modelo de agrupación con agrupación espacial basada en densidad de aplicaciones con ruido (DBSCAN) para detectar transferencias electrónicas potencialmente fraudulentas de una compañía de seguros. Los resultados muestran que los modelos DBSCAN identifican relaciones ocultas entre las variables no solo incluidas sino también excluidas para el modelado con transferencias de ruido, mientras que se necesita menos intervención humana para agrupar las selecciones de parámetros
Tourist flows and protection of cultural heritage in Andalusia (Spain): An econometric analysis with panel data
Full text linkThis article analyzes the influence of heritage labeling on tourist flows in Andalusia (Spain). Some of
the labels considered correspond to public registries whose purpose is the protection of heritage,
while others correspond to specific recognitions aimed at promoting tourism and local development.
A data panel of 31 tourist destinations covering the entire territory of Andalusia has been
constructed for the period 2009-2022, incorporating the tourist flows of travelers as response
variables and the density of the different typologies of cultural heritage elements as explanatory
variables and different control variables. Different models with temporal and transversal effects
have been estimated, aimed at evaluating the contribution of different typologies of cultural heritage
on traveler flows. The results show that cultural heritage has a significant effect on tourist flows in
Andalusia, but with a different distribution depending on the type of flow and the typology of the
tourist destination.The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: ERDF A way of making Europe (PID2022-138651NB-I00), MCIN/AEI/ 10.13039/ 501100011033 (PID2022-138651NB-I00).Economí
A review of the injuries caused by occupational footwear
Full text linkBackground: Occupational footwear is intended to provide protection against the risks associated with work activities. The choice of footwear is complex due to the welfare, health and safety conditions of workers.
Aims: To identify the injuries and problems caused by occupational footwear through a systematic review of the existing literature.
Methods: A literature search was carried out in the Cumulative Index to Nursing and Allied Health Literature, Dialnet Plus, Pubmed, Scientific Electronic Library Online, Medline, Scopus and Web of Science databases over the period 2000-23, following the PRISMA Declaration guidelines.
Results: A total of 27 studies were included in the review. The results indicated that there is a wide variety of injuries caused by occupational footwear: from dermal injuries (e.g. calluses) and injuries to the nail apparatus to inflammatory pathologies such as plantar fasciitis or bursitis. In addition, inappropriate footwear can cause pain in the ankle and foot, knees, hips and lower back. Other results include the discomfort derived from the footwear itself.
Conclusions: Inappropriate footwear can cause injuries to the foot and other related bone structures. Further studies are needed on the detection of foot injuries caused by occupational footwear and the levels of action at this level to improve the worker's health, the adaptability of the footwear to the wearer, and the worker's comfort and adherence to the footwear.Departamento de Biología Ambiental y Salud Públic
Innovación docente en las enseñanzas técnicas mediante herramientas telemáticas
No full textContenido restringido. Copyright exclusivo de la editorialIngeniería Minera, Mecánica, Energética y de la Construcció
Mediación textual para adultos inmigrantes en la formación inicial de docentes.
No full textInitial teacher trainees are preparing for multilingualism and multicultural work environments
that present the challenge of mediating texts aimed at teaching adult immigrants in an
additional language. The study aims to investigate the perceptions of university education
students regarding textual mediation suitable for immigrant adults. Qualitative inquiry
involves 130 university students through discussion groups after a textual mediation
intervention. Results emphasize the impact of applied practice on skill perception and
acquisition across educational levels and highlight the necessity of integrating practical
experiences into teacher training.Los futuros docentes están preparándose para entornos de trabajo multilingües y multiculturales que presentan el desafío de mediar textos dirigidos a la enseñanza de adultos inmigrantes en un idioma adicional. El estudio tiene como objetivo investigar las percepciones de los estudiantes universitarios sobre la mediación textual adecuada para adultos inmigrantes. La investigación cualitativa involucra a 130 estudiantes universitarios a través de grupos de discusión después de una intervención de mediación textual. Los resultados destacan el impacto de la práctica aplicada en la percepción y adquisición de habilidades en todos los niveles educativos, y resaltan la necesidad de integrar experiencias prácticas en la formación docente.Os futuros professores estão se preparando para ambientes de trabalho multilíngues e multiculturais que apresentam o desafio de mediar textos destinados ao ensino de adultos imigrantes em uma língua adicional. O estudo tem como objetivo investigar as percepções dos estudantes universitários sobre a mediação textual adequada para adultos imigrantes. A pesquisa qualitativa envolve 130 estudantes universitários por meio de grupos de discussão após uma intervenção de mediação textual. Os resultados destacam o impacto da prática aplicada na percepção e aquisição de habilidades em todos os níveis educacionais e destacam a necessidade de integrar experiências práticas na formação docente.Les futurs enseignants se préparent à des environnements de travail multilingues et multiculturels qui présentent le défi de médiation de textes destinés à l'enseignement d'adultes immigrés dans une langue supplémentaire. L'étude vise à enquêter sur les perceptions des étudiants universitaires concernant la médiation textuelle appropriée pour les adultes immigrés. L'enquête qualitative implique 130 étudiants universitaires à travers des groupes de discussion après une intervention de médiation textuelle. Les résultats mettent en évidence l'impact de la pratique appliquée sur la perception et l'acquisition de compétences à tous les niveaux éducatifs et soulignent la nécessité d'intégrer des expériences pratiques dans la formation des enseignants.Proyecto competitivo I+D+I de Convocatoria Nacional/Alfabetización múltiple en aprendientes adultos en riesgo de lenguas adicionales. Multiliteracies for adult at-risk learners of additional languages, Multi-Lits/Entidad financiadora Ministerio de Ciencia e Innovación y Agencia Estatal de Investigación/MCIN/ AEI/10.13039/501100011033/Filologí
Origin of rare earth elements in acid mine drainage traced by strontium and neodymium isotopes
Full text linkAcid mine drainage (AMD) generated from coal and sulfide mining has attracted much interest due to the high
concentrations of rare earth elements (REE) observed. However, the origin of REE in AMD and particularly the
mechanism of enrichment in medium REE remain uncertain. The combined study of Sr and Nd isotopes can be
used to trace the processes that control the mobility and fractionation of REE in aquatic systems such as AMD.
This work reports for the first time worldwide isotopic data of Sr and Nd in AMDs from sulfide mining (Iberian
Pyrite Belt, SW Spain) and compare with those in host rocks. Additionally, leaching experiments have been
carried out to simulate the water–rock interactions found in these acidic systems. The results obtained strongly
suggest that the origin of REE in AMDs from metal mining may be related to the preferential dissolution of shales
and felsic rocks. The suitability of Sr and Nd isotopic signatures to trace the REE source in AMD-affected systems
has been proven, it provides a new environmental and geochemical prospecting tool which could be useful in
different geological water–rock interaction systems.This research was supported by the AIHODIEL project (PYC20 RE
032 UHU) co-financed by the FEDER program in Andalucía for the
period 2014–2020, LIFEWATCH-INDALO project, and ERA-MIN3
SuMRee project (PCI2024-153500), financed by MICIU/AEI/10.13039/
501100011033, and by the European Union NextGenerationEU/PRTR.
C.R Cánovas thanks the Spanish Ministry of Science and Innovation for
the Postdoctoral Fellowship granted under application reference
RYC2019–027949-I. Jonatan Romero-Matos is financed by a FPU program
of the Spanish Ministry of Education of Vocational Training
(FPU20/04441). Ricardo Millán-Becerro also acknowledges the Spanish
Ministry of Universities for the Margarita Salas Research Grant. Funding
for open access charge: Universidad de Huelva/CBUA. We would also
like to thank Jeffrey G. Catalano (Editor-in-Chief), Melanie Davranche
(Associate Editor), and anonymous reviewers for the support and suggestions
that significantly improved the quality of the original paper.Ciencias de la Tierr