746 research outputs found
The role of parents in their children’s emotion regulation in Colombia
openEmotion regulation is a fundamental process influencing how individuals navigate their emotional well-being and interpersonal interactions. This study delves into the role of parents in shaping children's emotion regulation, exploring the relationship between children's and parents' emotion regulation strategies, family support perceptions, and cultural influences. Employing a well-established online survey encompassing diverse cultural contexts, the study uncovers a positive relationship between children's and parents' emotion regulation strategies, emphasizing the pivotal role of parental involvement. Additionally, it identifies a strong correlation between children's and parents' perceptions of maternal support, underlining the significance of familial support dynamics. Cultural analysis reveals distinct trust-related factors but no significant impact on emotion regulation strategies for both children and parents. This research underscores the importance of parental awareness and engagement in supporting their children's emotional development, offering valuable insights for parenting education and family therapy.Emotion regulation is a fundamental process influencing how individuals navigate their emotional well-being and interpersonal interactions. This study delves into the role of parents in shaping children's emotion regulation, exploring the relationship between children's and parents' emotion regulation strategies, family support perceptions, and cultural influences. Employing a well-established online survey encompassing diverse cultural contexts, the study uncovers a positive relationship between children's and parents' emotion regulation strategies, emphasizing the pivotal role of parental involvement. Additionally, it identifies a strong correlation between children's and parents' perceptions of maternal support, underlining the significance of familial support dynamics. Cultural analysis reveals distinct trust-related factors but no significant impact on emotion regulation strategies for both children and parents. This research underscores the importance of parental awareness and engagement in supporting their children's emotional development, offering valuable insights for parenting education and family therapy
01 April 2007 Solomon Island Tsumani: Case Study to Validate JRC Tsunami Codes
On April 1st 2007 a large earthquake of magnitude 8.1 occurred offshore Solomon Islands at 20:40:38 UTC. Numerical simulations of the tsunami event caused by the earthquake have been performed to compare the results obtained by the SWAN-JRC code (Annunziato, 2007), the TUNAMI (Imamura, 1996) and the HYFLUX2 (Franchello, 2008). The analysis conducted using these numerical simulations were also compared with NOAA-MOST code unit source results.
The tsunami event has been simulated considering several options for the seismological parameters as input data: Finite Fault Model (USGS, 2007), the Centroid Moment Tensor fault model and other mechanisms derived from the field survey analysis (Tanioka model).
The main aim of this study is to assess how the different fault models affect the overall results and to perform a comparison among the various codes in the wave propagation phase. Another objective of this study is to use HYFLUX2 code to calculate inundation and compare the simulation results with site field measurements.
The study has been separated into two main parts. The first one represents the collection of information about focal mechanisms: the fault analysis in chapter 4 covers one of the main aims of this research where different fault scenarios have been tested using published field data. The second part describes the different calculations that have been performed in order to analyze the response of the wave propagation models to various fault deformation models. For the inundation assessment, more detailed calculations at 300m grid size resolutions have been performed, using the fault model that best represent the deformation.
The calculations in the propagation assessment subsection were performed using: SWAN-JRC, HYFLUX2, TUNAMI-N2 and NOAA-MOST code. In the inundation assessment the HYFLUX2 numerical code, initialized with the Tanioka fault model was used.
The deformation comparison with field measured data shows that none of the ¿quick¿ fault mechanism was able to estimate correctly the measured value. The best model is the empirical model by Tanioka which was obtained by trying to reproduce the measured value.
From the published fault mechanism the one that shows a better correlation with measurements is the simple cosinuosoidal model. Results of simulations done with 300 m grid, show a maximum wave height of 7.5 m. Though the maximum run up reported was 10 m in Tapurai site, Simbi Island, the simulation results are encouraging.JRC.DG.G.2-Global security and crisis managemen
Validation of the JRC Tsunami Propagation and Inundation Codes
In the last years several numerical codes have been developed to analyse tsunami waves. Most of these codes use a finite difference numerical approach giving good results for tsunami wave propagation, but with limitations in modelling inundation processes. The HyFlux2 model has been developed to simulate inundation scenario due to dam break, flash flood and tsunami-wave run-up. The model solves the conservative form of the two-dimensional shallow water equations using a finite volume method. The implementation of a shoreline-tracking method provides reliable results. HyFlux2 robustness has been tested using several tsunami events. The main aim of this study is code validation by means of comparing different code results with available measurements. Another objective of the study is to evaluate how the different fault models could generate different results that should be considered for coastal planning. Several simulations have been performed to compare HyFlux2 code with SWAN-JRC code and the TUNAMI-N2. HyFlux2 has been validated taking advantage of the extensive seismic, geodetic measurements and post-tsunami field surveys performed after the Nias March 28th tsunami. Although more detailed shallow bathymetry is needed to assess the inundation, diverse results in the wave heights have been revealed when comparing the different fault mechanism. Many challenges still exist for tsunami researchers especially when concern to early warning systems as shown in this Nias March 28th tsunami.JRC.G.2-Global security and crisis managemen
Systematic Comparison of Tsunami Simulations on the Chilean Coast Based on Different Numerical Approaches
This article belongs to the Special Issue Modelling and Numerical Simulation of Tsunami https://www.mdpi.com/journal/geohazards/special_issues/model_tsunamiTsunami inundation estimates are of crucial importance to hazard and risk assessments. In the context of tsunami forecast, numerical simulations are becoming more feasible with the growth of computational power. Uncertainties regarding source determination within the first minutes after a tsunami generation might be a major concern in the issuing of an appropriate warning on the coast. However, it is also crucial to investigate differences emerging from the chosen algorithms for the tsunami simulations due to a dependency of the outcomes on the suitable model settings. In this study, we compare the tsunami inundation in three cities in central Chile (Coquimbo, Viña del Mar, and Valparaíso) using three different models (TsunAWI, Tsunami-HySEA, COMCOT) while varying the parameters such as bottom friction. TsunAWI operates on triangular meshes with variable resolution, whereas the other two codes use nested grids for the coastal area. As initial conditions of the experiments, three seismic sources (2010 Mw 8.8 Maule, 2015 Mw 8.3 Coquimbo, and 1730 Mw 9.1 Valparaíso) are considered for the experiments. Inundation areas are determined with high-resolution topo-bathymetric datasets based on specific wetting and drying implementations of the numerical models. We compare each model’s results and sensitivities with respect to parameters such as bottom friction and bathymetry representation in the varying mesh geometries. The outcomes show consistent estimates for the nearshore wave amplitude of the leading wave crest based on identical seismic source models within the codes. However, with respect to inundation, we show high sensitivity to Manning values where a non-linear behaviour is difficult to predict. Differences between the relative decrease in inundation areas and the Manning n-range (0.015–0.060) are high (11–65%), with a strong dependency on the characterization of the local topo-bathymery in the Coquimbo and Valparaíso areas. Since simulations carried out with such models are used to generate hazard estimates and warning products in an early tsunami warning context, it is crucial to investigate differences that emerge from the chosen algorithms for the tsunami simulations.This study is part of the tsunami component in the RIESGOS project, with a larger scope of multi-hazard assessments in the Andes region. The RIESGOS project is funded by the German Federal Ministry of Education and Research (Grant numbers 03G0876C and 03G0905C). AG acknowledges the Research Center for Integrated Disaster Risk Management (CIGIDEN), ANID/FONDAP/15110017. NZ has received funding from the Marie Skłodowska-Curie grant agreement H2020-MSCA-COFUND-2016-75443. The Servicio Hidrográfico y Oceanográfico de la Armada de Chile (SHOA) provided high-resolution bathymetry data via the CENDHOC program (Centro Nacional de Datos Hidrográficos y Oceanográficos de Chile). We thank EDANYA Group for sharing the Tsunami-HYSEA code and X. Wang for sharing the COMCOT code. We acknowledge M. Moreno, M. Shrivastava and M. Carvajal for providing the finite faults used in the three experiments. Basemaps by OpenStreetMaps contributors were used in most of the figures. Basemaps in Figure 6 and Figure 10 are taken from Google Earth. Some figures were generated with the GMT software [44]. TsunAWI code optimization was supported by the LEXIS project, funded by the EU’s Horizon 2020 Research and Innovation Programme (2014–2020) under grant agreement no. 825532. Some figures were generated with the software QGIS. We would like to deeply thank the editors and three anonymous reviewers for valuable comments that helped us improving the manuscript.Peer ReviewedPostprint (published version
Análisis del INBioparque como un espacio educativo y recreativo para la conservación de la biodiversidad de Costa Rica
Tesis doctoral inédita, leída en la Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Ecología. Fecha de lectura: 17-01-201
Diseño y puesta a punto de un método cefalométrico en 3D para el estudio de la población ortodóncica
Introducción: La introducción de la tomografía computarizada de haz cónico (CBCT) y su aplicación clínica a la imagen craneofacial tridimensional (3D) supone una herramienta diagnóstica esencial para el clínico.
Objetivos: 1-Evaluar la reproducibilidad en la localización de puntos cefalométricos pertenecientes a tejidos duros del cráneo sobre imágenes escaneadas con un equipo CBCT 2-Comprobar si los valores de diferentes mediciones de las reconstrucciones 3D del CBCT se pueden comparar a las mediciones realizadas sobre imágenes 2D de la telerradiografía lateral de cráneo y comparar también si existen diferencias entre dos tipos diferentes de software de CBCT. 3-Diseñar un método cefalométrico 3D y determinar tres planos de referencia en cada uno de los ejes del espacio. Aplicar dicho análisis sobre una muestra de pacientes a los que se les ha realizado un CBCT.
Material y Método: Se recogió una muestra global de 90 pacientes que tenían realizado un CBCT i-Cat®. 1-Para hallar la reproducibilidad, 15 CBCTs fueron seleccionados. Dos observadores localizaron 41 puntos en 3 ocasiones con el software NemoCeph 3D®. Se calcularon los Coeficientes de Correlación Intraclase (ICC) intra e interexaminador y se hallaron los errores de localización y asociados al método de medida de cada uno de los puntos. 2-Se seleccionaron 8 casos que tenían realizado además del CBCT, una telerradiografía lateral de cráneo convencional. Las telerradiografías se tomaron con el cefalostato Orthophos Plus DS® y se evaluaron con el software Dental Studio NX®, mientras que las reconstrucciones 3D (CBCT) se evaluaron con dos software diferentes, NemoCeph 3D® e InVivo5®. Un observador midió en dos ocasiones 10 medidas angulares y 3 lineales en cada uno de los registros, hallándose las correlaciones entre los tres tipos de métodos. 3-Se diseñó una cefalometría 3D y se empleó la muestra de los 90 CBCT para hallar los valores cefalométricos descriptivos de cada una de las variables creadas en cada una de las áreas de estudio: patrón facial, clase esquelética, relación maxilo-mandibular, medidas transversales, asimetrías, proporción facial y análisis dentoalveolar; mediante el cálculo de medias y desviaciones típicas, así como correlaciones de las diferentes variables entre sí y en función de la edad y del sexo.
Resultados: 1-La reproducibilidad en la localización de los puntos cefalométricos para todos los ejes fue elevada (ICC ≥0.9) en las medidas intraobservador e interobservador. Analizando cada uno de los puntos por separado se encontró que el valor promedio de su desviación típica en todos los ejes fue igual a 1.0 mm. 2-No se encontraron diferencias estadísticamente significativas para ninguna de las medidas entre la telerradiografía lateral de cráneo y los CBCT, siendo los niveles de significación para todas las mediciones ICC>0.65. 3-Se ha creado un plano vertical de referencia (Na, S, Ba) así como diversos planos auxiliares y medidas lineales. Se han establecido las medias y desviaciones típicas de cada una de las variables del análisis 3D estudiadas, estableciendo así mismo diferentes correlaciones que nos sirven para la posterior creación de una base de datos.
Conclusiones: 1-Se encontró elevada reproducibilidad en la localización de todos los puntos cefalométricos. Los puntos nasion, silla, basion, suturas frontocigomáticas, puntos anteriores de la rama, primer molar superior izquierdo e incisivo superior se pueden considerar como puntos altamente reproducibles para poder ser empleados en los análisis cefalométricos tridimensionales. 2-Es posible emplear la mayor parte de los valores establecidos en 2D para las mediciones 3D. Así mismo, las mediciones 3D no difieren entre NemoCeph 3D e InVivo5®, pudiéndose realizar las mediciones indistintamente en cualquiera de los dos software. 3-Se ha diseñado un método cefalométrico tridimensional dividido por áreas de interés que puede servir como punto de partida para la evaluación y medición de las características craneofaciales de todos aquellos pacientes que precisen como registro diagnóstico un CBCT.
PALABRAS CLAVE: tomografía computarizada de haz cónico, CBCT, reproducibilidad; plano de referencia; análisis cefalométrico 3D.Introduction: Cone Beam Computerized Tomography (CBCT) allows the possibility of modifying some of the diagnostic tools used in orthodontics, such as cephalometry.
The aims were 1-To assess intra and inter-observer reliability in the location of anatomical landmarks belonging to hard tissues of the skull in images taken with a CBCT device, 2-To assess whether the values of different measurements taken on 3D reconstructions from CBCT are comparable with those taken on 2D images from conventional lateral cephalometric radiographs (LCR) 3-To introduce planes of reference and create a cephalometric analysis appropriated to the 3D reality.
Study design: 90 patients who had a CBCT (i-Cat®) as a diagnostic register were selected. 1-To assess the reproducibility 15 CBCT were analysed. 41 landmarks were defined on the three spatial axes (X,Y,Z) and located by two observers at different times with the NemoCeph 3D® software. 2-To compare 13 measurements between LCR (Orthophos Plus DS®) and CBCT, 8 patients who had both registers were selected. Measurements were done with softwares Dental Studio NX® (LCR), NemoCeph 3D® (CBCT) e InVivo5® (CBCT). 3-To create and evaluate three spatial planes and a 3D analysis divided in different areas of interest, the 90 CBCT were selected.
Results: 1- Intra- and inter-examiner reliability was high, both being ICC ≥ 0.99, with the best frequency on axis Z. 2- No statistically significant differences were found for the angular and linear measurements between the LCR and the CBCTs for any measurement being the correlation levels ICC<0.65. 3- Mean values, standard deviations and correlations of each one of the measurements defined on the 3D analysis were evaluated for all patients.
Conclusions: 1-High reliability was found for all the landmarks. The most reliable ones were: Nasion, Sella, Basion, left Porion, point A, anterior nasal spine, Pogonion, Gnathion, Menton, frontozygomatic sutures, first lower molars and upper and lower incisors. 2-No statistically significant differences were found between measurements taken on the LCR and CBCT and in those taken between the two CBCTs. 3-A new 3D analysis has been created and can be applied to measure and evaluate those patients who require a CBCT as a diagnostic register.
Keywords: Cone Beam Computed Tomography, 3D cephalometry, landmark, orthodontics, reliability
Turismo escolar y centro de compra, en los colegios municipalizados de la ciudad de Talca y estudio comparativo entre los diferentes tipos de colegio
119 p.El presente estudio se divide en dos fases, en la primera se identifican los principales requerimientos turísticos y de los estudiantes de enseñanza media de los colegios municipalizados de la ciudad de Talca, para su "gira de estudio", y se identifican los participantes del centro de compra involucrado en su organización. En la segunda con los resultados de esta investigación mas los hallazgos de Cerda y Del Pino (2001), se realizo un análisis comparativo entre los distintos tipos de colegios existentes en a ciudad de Talca: colegios particulares, subvencionados y los municipalizados. En la primera fase se utilizaron métodos cualitativos, como grupos focos y entrevistas en profundidad los que fueron la base del estudio cuantitativo, en el que se utilizo un muestreo cuatrietapico donde tres de las cuatro etapas son probabilísticas en el caso de los alumnos y la de censo para los profesores jefes de los cursos. Se entrevistaron 340 alumnos y 78 profesores jefes. Se concluye que los entrevistados prefieren para su "gira de estudio": a) como lugar de destino las playas, el sur de Chile y visitar las ciudades de Pucón y Chiloé, b) visitar lugares de interés turístico y realizar actividades nocturnas, c) alojar en residenciales, con servicios higiénicos necesarios, cerca de los lugares de interés y que puedan comer en ese lugar, d) que la gira durara entre 5 a 8 días aunque la mayoría cree que durara entre 4 a 5 días, e) realizar actividades culturales. El fondo reunido para la "gira de estudio" esta entre 50.000 pesos por alumno. Es financiada por las actividades realizadas por los alumnos como por aportes de sus padres. La alimentación para este grupo es muy importante. En el centro de compra que interviene, son los apoderados y alumnos son los grandes influenciadores y decididores, los profesores influencian pero en un grado menor, los apoderados también cumplen otros roles como de guardián, de buscador de información, de comprador, y los principales usuarios de la "gira de estudio" son los alumnos. De la segunda fase de esta investigación se concluye que: los requerimientos de los alumnos para la "gira de estudio", cambian dependiendo del tipo de colegio al cual pertenezca el alumno, es así como: a) los alumnos de los colegios municipalizados y subvencionados prefieren el sur de Chile, los alumnos de los colegios particulares prefieren visitar el norte del país, b) los alumnos de los colegios municipalizados les atrae realizar actividades culturales mas que a los alumnos de los otros tipos de colegios, c) para los alumnos de los colegios municipalizados la alimentación dentro de la gira juega un rol mas importante que lo asignado por los estudiantes de los otros tipos de colegios, d) la ciudad de Pucon representa el destino ideal para la mayoría de los alumnos de todos los tipos de colegios. En general el centro de compra de los diferentes tipos de colegios no es muy diferente aunque existen ciertas diferencias como: a) los profesores influyen en menos decisiones que en los colegios particulares y subvencionados, b) los directores de colegios particulares actúan como influenciadotes en las decisiones de autorización, fecha de realización y su duración, en los colegios municipalizados solo dan la autorización para realizar esta gira, c) en los colegios municipalizados tanto la directiva de los apoderados como la de los alumnos son las que se encargan de hacer las compras necesarias para la "gira de estudio", mientras que en los otros colegios son los apoderados, d) en el centro de compra de los colegios municipalizados no están presentes ni las agencias de viajes, ni los tour operadores
Cat and dog predation on birds: the importance of indirect predation after bird-window collisions
Predation of free-living birds by cats (Felis silvestris catus) and dogs (Canis lupus familiaris) is one of the main urbanization impacts on avifauna worldwide. In addition to direct predation, these pets capture birds after window collisions, an unexplored human cause of avian mortality. In this study we (1) estimated the number of cats and dogs in Argentina, (2) calculated the metrics of direct bird predation by cats and dogs, (3) analyzed factors that influence the probability of pets capturing birds, and (4) estimated annual bird mortality due to pet predation following bird-window collision events. To this end, we conducted an online survey to collect information on bird predation by cats and dogs in Argentina, both direct and indirect after bird-window collisions. We found that more than 68% of participants had at least one dog or cat, and of these, 45.3% reported having observed at least one case of bird predation by cats or dogs in their household. We estimated that the rough annual bird mortality rate due to predation following bird-window collisions could reach approximately 6 million birds in Argentina (range = 1–11 million birds). Our results show that direct bird predation by pets but also indirect predation after bird-window collisions represents a considerable source of avian mortality, which requires further attention in pursuit of solutions.Fil: Rebolo, Natalia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Patagonia Norte. Instituto de Investigaciones En Biodiversidad y Medioambiente. Subsede San Martín de Los Andes-inibioma | Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Instituto de Investigaciones En Biodiversidad y Medioambiente. Subsede San Martín de Los Andes-inibioma.; ArgentinaFil: Zamora Nasca, Lucía Belén. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Patagonia Norte. Instituto de Investigaciones En Biodiversidad y Medioambiente. Subsede San Martín de Los Andes-inibioma | Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Instituto de Investigaciones En Biodiversidad y Medioambiente. Subsede San Martín de Los Andes-inibioma.; ArgentinaFil: Lambertucci, Sergio Agustin. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Patagonia Norte. Instituto de Investigaciones En Biodiversidad y Medioambiente. Subsede San Martín de Los Andes-inibioma | Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Instituto de Investigaciones En Biodiversidad y Medioambiente. Subsede San Martín de Los Andes-inibioma.; Argentin
Apropiación y transformación social en los usos de la tierra : impactos y lecciones de la ganadería bufalina comunitaria en puerto matilde (Yondó, Antioquia)
99 páginasThe objective of this document is to account for the social and economic transformations generated within the process of appropriation of knowledge in the communitarian buffalo livestock project promoted by the Asociación Campesina del Valle del río Cimitarra in Puerto Matilde. To achieve it, this research is carried out in three chapters: the first narrates the historical configuration of the Magdalena Medio as a region, seeking to account for the social, economic and political dynamics in the midst of which peasant bufalina cattle ranching arises; the second chapter gives an account of the construction of the ACVC, highlighting its work around the struggle for the territory and the productive alternatives to stay in it, highlighting the process of construction of the peasant project of bufalinan livestock; Finally, in the third chapter, the issue of the Peasant Reserve Zone will be addressed as the alternative of territorial ordering and development that allows this project to have more than 15 years of implementation and also show how this project has strengthened the ZRC and has consolidated it as a strong strategy and a real alternative of permanence in the territory.El objetivo del presente documento es dar cuenta de las transformaciones sociales y económicas generadas en el marco del proceso de apropiación del conocimiento en el proyecto de ganadería bufalina comunitaria impulsado por la Asociación Campesina del Valle del río Cimitarra en Puerto Matilde. Para lograr lo anterior esta investigación se desarrolla en tres capítulos: el primero narra la configuración histórica del Magdalena Medio como región, buscando dar cuenta de las dinámicas sociales, económicas y políticas en medio de las cuales surge la ganadería bufalina campesina; el segundo capítulo da cuenta de la construcción de la ACVC, resaltando su trabajo en torno a la lucha por el territorio y las alternativas productivas para permanecer en él, resaltando el proceso de construcción del proyecto de ganadería bufalina campesina; finalmente, en el tercer capítulo se abordará el tema de la Zona de Reserva Campesina como la alternativa de ordenamiento territorial y desarrollo que permite que este proyecto lleve más de 15 años de implementación y así mismo se dará cuenta de cómo este proyecto ha fortalecido a la ZRC y la ha consolidado como una estrategia fuerte y una alternativa real de permanencia en el territorio.Licenciado en SociologíaPregrad
Parental attachment security and problematic internet use in children:The mediating role of maladaptive cognitive emotion regulation strategies
Problematic Internet Use (PIU) is a growing problem among children. Insecure attachment has been associated with PIU and emotion dysregulation. Furthermore, there is evidence suggesting that maladaptive Cognitive Emotion Regulation Strategies (CERS), such as Self-blame, Rumination, Catastrophizing and Other-blame, lead to PIU, nevertheless, the mediating role of CERS between attachment and PIU has not been explored. A sample of 641 children (M = 10.15; SD =.89) participated in the study. The findings showed that there were significant differences between problematic and non-problematic users in terms of secure attachment and emotion dysregulation. Results show a negative association between attachment security and PIU and a negative association between attachment and maladaptive CERS, whilst maladaptive CERS were positively related with PIU. Finally, maladaptive CERS, particularly Rumination, were found to mediate the relationship between attachment security and PIU. However, Catastrophizing and Other Blame partially mediated the relationship between maternal attachment, but not the relationship between Father attachment and PIU. Limitations and implications are discussed, motivating the promotion of prevention and intervention programs.</p
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