11037 research outputs found
Sort by
The university teachers of Galicia and remote emergency teaching: conditions and contradictions
Get PDFEste estudio pretende analizar las condiciones de partida del profesorado universitario y la intervención institucional de las universidades gallegas, para afrontar la crisis derivada del CoVId-19 y encarar un futuro blended-learning. Es un estudio mixto secuencial en dos fases, 1- cuantitativa: recoge la percepción del profesorado sobre la enseñanza con un cuestionario; 2- cualitativa: realiza un análisis documental de la intervención institucional. Los resultados muestran que 68,07% del profesorado nunca ha impartido docencia en línea, en general apuestan por una metodología y evaluación basada en la transmisión de contenidos y presentan incoherencias conceptuales en las dimensiones didácticas de sus propuestas. La intervención institucional se dirige a dotar de soporte técnico; sufragar las carencias instrumentales con ausencia del análisis pedagógico; y articular medidas de control. Las conclusiones evidencian una agencia del profesorado debilitada y su escasa preparación para afrontar enseñanza mixta de calidad en el futuro.The study aims to analyses the university teachers starting conditions and the galician universities institutional intervention to face the crisis derived from CoVId-19 and a future blended- learning. It is a sequential mixed study in two phases, 1-quantitative: it collects the teachers' perception of teaching with a questionnaire; 2- qualitative: an institutional intervention documentary analysis was developed. The results show that 68.07% of the teaching staff have never taught online, in general they bet on a content transmission methodology and evaluation and there are conceptual inconsistencies in the didactic dimensions of their proposals. The institutional intervention is aimed at providing technical support to cover the instrumental deficiencies, with the absence of the pedagogical analysis; and articulate control measures. The conclusions show weakened teacher agency and their poor preparation to face a quality mixed education in the future.Rede de investigación TELgaliciaXunta de Galicia | Ref. ED431D 2017/1
Mathematics achievement and its difficulties in elementary school: a multicomponent analysis of longitudinal predictors
No full textLas matemáticas se han relacionado con un elevado porcentaje de fracaso escolar a lo largo de la historia, aumentando recientemente el número de niños/as con dificultades en este campo. En la actualidad no está claro cómo se adquieren las habilidades matemáticas a lo largo de la escolarización, cuales son los procesos cognitivos que se vinculan a las diferencias individuales y como se relacionan esos procesos con las habilidades específicas para conseguir un rendimiento competente. En este sentido, el propósito de este proyecto es analizar longitudinalmente las relaciones entre las habilidades de dominio general y específico con el rendimiento matemático, concretado en el cálculo y la resolución de problemas aritméticos, mostrado por aproximadamente 400 niños/as pertenecientes a los primeros niveles educativos. Los datos obtenidos se analizarán con el objeto de: (1) Determinar en qué medida las habilidades cognitivas, lingüísticas y de dominio específico predicen longitudinalmente el desarrollo en las habilidades matemáticas a lo largo de la educación primaria, (2) estudiar en qué medida las relaciones entre las habilidades cognitivas, lingüísticas y de dominio específico cambian durante la adquisición de las diferentes habilidades matemáticas y (3) analizar la capacidad de las habilidades cognitivas, lingüísticas y de dominio específico para clasificar a los estudiantes (alumnado con dificultades matemáticas persistentes vs rendimiento matemático típico) en función de su rendimiento previo en el cálculo y la resolución de problemas aritméticos.
En cuanto a la metodología resaltar que se manejarán pruebas estandarizadas para garantizar la singularidad de los procesos e intentar solventar algunas de las inconsistencias localizadas en la literatura. En el ámbito teórico, se parte de un marco interpretativo integrador que puede aportar nuevos datos para el diagnóstico y la intervención.As matemáticas relacionáronse cunha elevada porcentaxe de fracaso escolar ao longo da historia, aumentando recentemente o número de nenos/as con dificultades neste campo. Na actualidade non está claro como se adquiren as habilidades matemáticas ao longo da escolarización, cales son os procesos cognitivos que se vinculan ás diferenzas individuais e como se relacionan eses procesos coas habilidades específicas para conseguir un rendemento competente. Neste sentido, o propósito deste proxecto é analizar longitudinalmente as relacións entre as habilidades de dominio xeral e específico co rendemento matemático, concretado no cálculo e a resolución de problemas aritméticos, mostrado por aproximadamente 400 nenos/as pertencentes aos primeiros niveis educativos. Os datos obtidos analizaranse co obxecto de: (1) Determinar en qué medida as habilidades cognitivas, lingüísticas e de dominio específico predín longitudinalmente o desenvolvemento nas habilidades matemáticas ao longo da educación primaria, (2) estudar en qué medida as relacións entre as habilidades cognitivas, lingüísticas e de dominio específico cambian durante a adquisición das diferentes habilidades matemáticas e (3) analizar a capacidade das habilidades cognitivas, lingüísticas e de dominio específico para clasificar aos estudantes (alumnado con dificultades matemáticas persistentes vs rendemento matemático típico) en función do seu rendemento previo no cálculo e a resolución de problemas aritméticos. En canto á metodoloxía resaltar que se manexarán probas estandarizadas para garantir a singularidade dos procesos e tentar liquidar algunhas das inconsistencias localizadas na literatura. No ámbito teórico, se parte dun marco interpretativo integrador que pode achegar novos datos para o diagnóstico e a intervención.Mathematics has been associated with a high percentage of academic failure throughout history, with the number of children facing difficulties in this field increasing in recent times. Currently, it is not clear how mathematical skills are acquired throughout schooling, what cognitive processes are linked to individual differences, and how these processes relate to specific skills required for competent performance. In this regard, the purpose of this project is to longitudinally analyze the relationships between general and specific mastery skills and mathematical performance, specifically in calculation and arithmetic problem-solving, as demonstrated by approximately 400 children in early educational levels. The data obtained will be analyzed to: (1) Determine to what extent cognitive, linguistic, and domain-specific skills longitudinally predict the development of mathematical skills throughout primary education, (2) investigate how the relationships between cognitive, linguistic, and domain-specific skills change during the acquisition of different mathematical skills, and (3) analyze the ability of cognitive, linguistic, and domain-specific skills to classify students (those with persistent mathematical difficulties versus typical mathematical performance) based on their previous performance in calculation and arithmetic problem-solving.
Regarding the methodology, standardized tests will be used to ensure the uniqueness of processes and attempt to address some of the inconsistencies found in the literature. The theoretical framework is based on an integrative interpretative framework that can provide new data for diagnosis and intervention purposes
The recent Spanish migration in Germany and the United Kingdom: migration identities in question
Get PDFReino Unido y Alemania son dos destinos de la reciente emigración española que empezó a crecer a partir del 2008. Los enfoques para abordarla, tanto desde la investigación como desde el plano político y mediático, son diversos y no exentos de controversias: emigración, exilio, jóvenes emprendedores, etc. El objetivo de este artículo es conocer cómo los propios protagonistas conciben su proyecto migratorio, dentro de una diversidad de perfiles y trayectorias heterogéneas que los han llevado a partir hacia Europa. Este estudio cualitativo llevado a cabo en Reino Unido y Alemania proporciona una imagen más nítida de la percepción de sus proyectos y la influencia de la situación socioeconómica en España en su toma de decisión migratoria. Los resultados revelan tres tipos de percepciones sobre la identidad migratoria, donde un mayor activismo o sensibilidad político-social juega un papel relevante, también en su comparativa histórica con respecto a la ola migratoria de 1960.The United Kingdom and Germany are two
destinations of the recent Spanish emigration
that began to grow in 2008. The approaches to
address it, both from the research and even
from the political and media angle or viewpoint,
are diverse and not without controversy:
emigration, exile, young entrepreneurs, etc.
The objective of this article is to understand
how the protagonists themselves conceive
their migration project, within a diversity of
profiles and very heterogeneous trajectories
that have led them to leave for Europe. This
qualitative study, carried out in the United
Kingdom and Germany, provides a clearer
picture of the perception of their projects and
the influence of the socioeconomic situation
in Spain on their migration decision-making.
Specifically, the results reveal three types of
perceptions about migratory identity, where
activism or greater political-social sensitivity
play a relevant role, and also an historical
comparison with respect to the emigration in
the 1960s.Ministerio de Economía, Industria y Competitividad | Ref. CSO2016-80158-
Cannabis use among adolescents: Risk pattern, implications and possible explanatory variables
Get PDFContrariamente a lo que ocurre con el resto de sustancias todavía no se han logrado disminuir los niveles de consumo de cannabis, que sigue siendo la droga ilegal más consumida entre los adolescentes españoles. El objetivo de este estudio consiste en actualizar los niveles de consumo (incorporando la franja de edad de 12-13 años), estimar los consumos propiamente de riesgo y analizar las posibles variables asociadas. Para ello se ha utilizado una metodología correlacional consistente en la realización de una encuesta a estudiantes de ESO y Bachillerato de la comunidad autónoma de Galicia (España) en el año 2016. La muestra final estuvo compuesta por 3.882 adolescentes gallegos de entre 12 y 18 años (M = 14,52 y DT = 1,72). Los resultados obtenidos revelan que a día de hoy es ya mayor el porcentaje de adolescentes que consumen tabaco y cannabis que únicamente tabaco (12,7% vs 10,5%) y que ello no sólo implica una mayor probabilidad de consumir otras sustancias ilegales, sino también de desarrollar un patrón consumo de alcohol de riesgo, de Binge Drinking o incluso de experimentar un Uso Problemático de Internet o de ciberacoso. Las variables personales como la autoestima, la asertividad, las habilidades sociales o la impulsividad tienen una capacidad explicativa realmente débil, en comparación con otras variables vinculadas al establecimiento de normas y límites por parte de los padres. Una de las principales conclusiones de este trabajo es la necesidad de adoptar un enfoque de prevención integral.In contrast to the achievements with other substances, it has not yet been possible to reduce the levels of cannabis use, the most used illegal substance among Spanish adolescents. The objective of this paper consists of updating levels of use (incorporating ages 12 and 13), estimating high-risk use and analyzing possible associated variables. For this purpose, a correlational method was used consisting of the administration of a survey to compulsory secondary school and high school students from the autonomous community of Galicia (Spain) in 2016. Results obtained from a sample of 3,882 Galician adolescents aged 12 to 18 (M = 14.52; SD = 1.72) reveal that the percentage of adolescents currently using tobacco and cannabis is higher than that of those using tobacco alone (12.7% vs 10.5%). This implies not only a higher probability of using other illegal substances, but also of developing rather high-risk use pattern, binge drinking or even experiencing problematic Internet use or cyberbullying. From a preventive perspective, the results reveal that personal variables such as self-esteem, assertiveness, social skills or impulsiveness have really weak explanatory power compared with other variables related to the setting of rules and limits by parents. One of the main conclusions of this paper is the need to adopt a comprehensive prevention approach.Delegación del Gobierno para el Plan Nacio-nal sobre Drogas| Ref. 2013/04
The European Institutions" Margin of Discretion in Conferring and Exercising Implementing Powers
No full textEn este trabajo se analizan las recientes sentencias de la Sala Séptima ampliada del Tribunal
General, de 11 de junio de 2025, en los asuntos T‐681/22 y T‐781/22. En ellas, el tribunal desestima en su
totalidad los recursos de anulación planteados, respectivamente, por el Estado español y por una
organización de empresas gallegas de pesca contra el Reglamento de Ejecución (UE) 2022/1614 de la
Comisión, de 15 de septiembre de 2022, por el que se determinan las zonas de pesca en aguas profundas
existentes y se establece una lista de zonas en las que se conoce la existencia de ecosistemas marinos
vulnerables o la posibilidad de que existan. Las partes demandantes habían propuesto subsidiariamente una
excepción de ilegalidad del acto legislativo en el que dicho reglamente se basó, a saber, el Reglamento (UE)
2016/2336 del Parlamento Europeo y del Consejo, de 14 de diciembre de 2016, por el que se establecen
condiciones específicas aplicables a la pesca de poblaciones de aguas profundas en el Atlántico Nororiental y
disposiciones relativas a la pesca en aguas internacionales del Atlántico Nororiental y se deroga el
Reglamento (CE) no 2347/2002 del Consejo. También dicha excepción de ilegalidad ha sido desestimada por
el Tribunal General.This paper analyses the recent judgments of the Seventh Chamber, Extended Composition, of the
General Court of 11 June 2025 in Cases T‐681/22 and T‐781/22. In those judgments, the Court dismissed in
their entirety the actions for annulment brought by, respectively, the Spanish State and an organisation of
Galician fishing companies against Commission Implementing Regulation (EU) 2022/1614 of 15 September
2022 identifying existing deep‐sea fishing areas and establishing a list of areas where vulnerable marine
ecosystems are known to occur or are likely to occur. The applicants had proposed in the alternative a plea of
illegality of Regulation (EU) 2016/2336 of the European Parliament and of the Council of 14 December 2016
laying down specific conditions applicable to fishing for deep‐sea stocks in the North‐East Atlantic and
provisions concerning fishing in international waters of the North‐East Atlantic and repealing Council
Regulation (EC) No 2347/2002, which has also been dismissed by the General Court
SignaMed: a cooperative bilingual LSE-Spanish dictionary in the healthcare domain
Get PDFIn this paper we present SignaMed, a bilingual dictionary accessible in Spanish and LSE (Spanish Sign Language)
specific to the medical domain. Building a sign language dataset to develop machine learning algorithms and
linguistic studies is a complex task that requires the cooperation of Deaf people. The dictionary platform, built with
their contributions, offers diverse access modes for users, including basic search functionalities, games, and activities
for sign donation. It allows sign searching using webcam or mobile phone capturing, facilitating intuitive interaction
and feedback. The article presents the technical, linguistic and cooperation details behind the construction of the
dictionary and will hopefully serve as inspiration for similar initiatives in other sign languages. The dictionary is
accessible through https://signamed.web.app.Agencia Estatal de Investigación | Ref. PID2021-123988OB-C32Ministerio de Ciencia e Innovación | Ref. FCT-21-16924Agencia Estatal de Investigación | Ref. PRE2019-08814
Molecular insight into taste and aroma of sliced dry-cured ham induced by protein degradation undergone high-pressure conditions
No full textHigh pressure processing (HPP) is currently being developed to increase the shelf-life of sliced dry-cured ham in convenience package without detrimental effects on texture and sensorial characteristics. This study is focused on protein degradation under pressure conditions and its contribution to taste and aroma. Samples of sliced dry-cured ham undergone HPP (600 Pa, 0–35 °C) were analyzed from different approaches including proteomic and chemical analysis (amino acids and volatile compounds).
Proteomic analysis revealed that high-pressure conditions caused a higher level of proteolysis, displaying that actin (ACTC1) was differentially degraded, unlike myosin. Furthermore, main Strecker metabolites-isoleucine and leucine-were more abundant at lower temperatures as opposed to 2-methyl butanal and 3-methyl butanal under HPP. Moreover, this study confirmed that HPP affected positively linear aldehydes (pentanal, hexanal, heptanal and nonanal) because of produce a decrease of them, which could improve flavor and taste of dry-cured ham.Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) | Ref. RTA 2013-00030-CO3-03Programa Iberoamericano de Ciencia y Tecnología para el Desarrollo (CYTED) | Ref. 116RT050
Assessing the influence of technosol and biochar amendments combined with Brassica juncea L. on the fractionation of Cu, Ni, Pb and Zn in a polluted mine soil
No full textPurpose: Soil metal pollution is a widespread problem around the world and remediation of these soils is difficult. The objective of this study was to investigate the effect of two different strategies on the chemical fractions of metals in a soil of a depleted copper mine: (1) amending with a mixture of a technosol made of wastes and biochar and (2) amending combined with planting vegetation (Brassica juncea). Materials and methods A 3-month greenhouse experiment was carried out to evaluate the effects of organic amendments and vegetation on the metal fractionation of Cu, Ni, Pb and Zn in a mine soil of the depleted copper mine at Touro (Spain). We compared the influence of organic amendments alone (technosol + biochar) and combined with mustard plants (Brassica juncea L.). Results and discussion: The results showed that amending with a technosol made of wastes promoted plant growth (from 0.7 to 2.9 g of biomass produced) and reduced the CaCl2-extractable metal concentration in soil, reduced the mobility factor of Cu from 18.3 to 1.6, Ni from 47.5 to 2.3 and Pb from 17.9 to 2.1, and also reduced the concentration of metals in the mobile soil fractions. It was not possible to grow up Brassica juncea plants in the untreated settling pond soil due to the extremely degraded conditions of that soil. However, the application of the used technosol increased the Pb and Zn pseudototal concentrations in the amended soils. Conclusions: We conclude that the combination of amending with wastes and planting B. juncea provides little additional benefit for remediating a metal-polluted soil compared with incorporation of wastes alone.Ministerio de Ciencia e Innovación | Ref. CGL2009-0784
Introduction: Analysing English Syntax Past and Present
Get PDF[Inicio] This book is an exploration of categories, constructions, and change in English
syntax. A great many books are published on the syntax of English, both
monographs and edited volumes, and yet another may seem unnecessary.
However, we felt more than justified in adding to the sizeable literature here
for two reasons. The first, to borrow from Richard M. Hogg and David
Denison’s justification for A History of the English Language, is that ‘one of the
beauties of the language is its ability to show continuous change and flexibility
while in some sense remaining the same. And if that is true of the language, it is
also true of the study of the language’ (2006: xi). Central to our book is a focus
on the syntax of the English language, through a wide variety of orientations
that a collective work makes possible. Thus the volume aims to embrace the
wide variety of approaches and methodologies in the current analysis of
English syntactic structure, variation, and change, both past and present,
through a careful curation of new case studies by established and emerging
scholars in the field. Such breadth of scope, together with a specific focus on
English syntax, sets the collection apart from most others. [...
Energy–efficient mixing generated by prescribed crosswise oscillations of a square prism in highly confined flows
No full textMixing downstream of a moving square cylinder placed inside a square section channel was analyzed experimentally and numerically at blockage ratio 2/5 and Reynolds 200. Three frequencies were considered for the prescribed sinusoidal, constant amplitude, cylinder motion: 0.5f0,1f0 and 2f0, where f0 stands for the frequency of the first instability of the wake in the unmoving cylinder case. Mixing was quantified by computing the downstream standard deviation of the distribution of virtual particles seeded behind the cylinder. Experimental PIV frames were used to evaluate mixing at the channel symmetry plane. Numerical streak-lines were used to compute mixing at the full section of the channel. The power required to move the cylinder was computed as well. It was found that maximum mixing efficiency combined with minimum motion power occurred for the frequency 1f0, proving that optimum mixing does not necessarily require high frequencies and/or high input power.Agencia Estatal de Investigación | Ref. DPI 2016-75296-