Impact of the consumption of electronic contents on research productivity in the universities of Castile and Leon     

Blanca Rodríguez-Bravo  María Luisa Alvite-Díez 《Library Collections, Acquisitions, and Technical Services》2013,37(3-4):85-106

The aim of this study is to investigate the link between the use of electronic resources and the academic output of researchers in the state universities of Castile and Leon (Spain) in the period 2006 to 2011. An analysis was undertaken of the consumption of contents distributed to the Universities of Burgos, Leon, Salamanca and Valladolid by three multidisciplinary suppliers whose materials are widely used: ScienceDirect, SpringerLink and Wiley. In investigating academic output, the databases Web of Science (WoS) from Thomson Reuters and Scopus from Elsevier were taken into account. The consumption of electronic academic contents at the four universities shows an upward trend over the years considered. There is an undoubted preference for titles distributed by ScienceDirect, striking in all the institutions. The study confirms that academics from the areas of science and technology were the most frequent users. The field of Chemistry registered the highest rates of both consumption and academic production, followed at some distance by publications related to Food Science and Technology, in respect of preferred title use, and by Physics with regard to communication of research results. Many of the journals selected for publications belonged to the suppliers investigated. Nevertheless, the work showed no absolute direct correlation between titles selected for academic publication and titles used from the platforms analyzed.  相似文献   

Análisis de los mecanismos de construcción de los textos desde una perspectiva de aplicación didáctica. Enfoque interlenguas     

M.a Luisa Villanueva  Rosaura Serra 《Cultura y Educación》2013,25(17):81-96

Se analizan aquí, como manifestación de la competencia lingüística general, los problemas de comprensión y expresión de los estudiantes en las Pruebas de Selectividad. Se abordan asimismo las lecturas e interpretaciones de los profesores y el análisis preparatorio de los materiales o textos de trabajo. Las autoras ofrecen propuestas específicas que se inscriben en una metodología integrada de las lenguas enfocada a la adquisición de competencias discursivas, estratéticas y textuales.  相似文献   

Peer Effects on Aggressive Behavior in Norwegian Child Care Centers     

Luisa A. Ribeiro  Henrik D. Zachrisson 《Child development》2019,90(3):876-893

This study examined whether exposure to changes in peer aggression predicted changes in child physical aggression (PA) in preschool children attending Norwegian Early Childhood Education and Care (ECEC) centers. Data from the Behavior Outlook Norwegian Developmental Study were used, including 956 children. In fixed effects models, within-child changes in exposure to peer aggression predicted changes in teacher-rated child PA across ages 2, 3, and 4. Moreover, changes in exposure to a peer group with two or more externalizing children increased teacher-rated child PA over time, but only for boys. No significant peer effects on parent-rated child PA were found. Findings point to the importance of avoiding the congregation of several problematic children, particularly boys, in the same ECEC groups.  相似文献   

An evaluation of an adaptive learning system based on multimodal affect recognition for learners with intellectual disabilities     

Penelope J. Standen  David J. Brown  Mohammad Taheri  Maria J. Galvez Trigo  Helen Boulton  Andrew Burton  Madeline J. Hallewell  James G. Lathe  Nicholas Shopland  Maria A. Blanco Gonzalez  Gosia M. Kwiatkowska  Elena Milli  Stefano Cobello  Annaleda Mazzucato  Marco Traversi  Enrique Hortal 《British journal of educational technology : journal of the Council for Educational Technology》2020,51(5):1748-1765

Artificial intelligence tools for education (AIEd) have been used to automate the provision of learning support to mainstream learners. One of the most innovative approaches in this field is the use of data and machine learning for the detection of a student’s affective state, to move them out of negative states that inhibit learning, into positive states such as engagement. In spite of their obvious potential to provide the personalisation that would give extra support for learners with intellectual disabilities, little work on AIEd systems that utilise affect recognition currently addresses this group. Our system used multimodal sensor data and machine learning to first identify three affective states linked to learning (engagement, frustration, boredom) and second determine the presentation of learning content so that the learner is maintained in an optimal affective state and rate of learning is maximised. To evaluate this adaptive learning system, 67 participants aged between 6 and 18 years acting as their own control took part in a series of sessions using the system. Sessions alternated between using the system with both affect detection and learning achievement to drive the selection of learning content (intervention) and using learning achievement alone (control) to drive the selection of learning content. Lack of boredom was the state with the strongest link to achievement, with both frustration and engagement positively related to achievement. There was significantly more engagement and less boredom in intervention than control sessions, but no significant difference in achievement. These results suggest that engagement does increase when activities are tailored to the personal needs and emotional state of the learner and that the system was promoting affective states that in turn promote learning. However, longer exposure is necessary to determine the effect on learning.  相似文献   

Microfluidic-driven viral infection on cell cultures: Theoretical and experimental study     

Elisa Cimetta  Mauro Franzoso  Marta Trevisan  Elena Serena  Alessandro Zambon  Stefano Giulitti  Luisa Barzon  Nicola Elvassore 《Biomicrofluidics》2012,6(2):024127-12

Advanced cell culture systems creating a controlled and predictable microenvironment together with computational modeling may be useful tools to optimize the efficiency of cell infections. In this paper, we will present a phenomenological study of a virus-host infection system, and the development of a multilayered microfluidic platform used to accurately tune the virus delivery from a diffusive-limited regime to a convective-dominated regime. Mathematical models predicted the convective-diffusive regimes developed within the system itself and determined the dominating mass transport phenomena. Adenoviral vectors carrying the enhanced green fluorescent protein (EGFP) transgene were used at different multiplicities of infection (MOI) to infect multiple cell types, both in standard static and in perfused conditions. Our results validate the mathematical models and demonstrate how the infection processes through perfusion via microfluidic platform led to an enhancement of adenoviral infection efficiency even at low MOIs. This was particularly evident at the longer time points, since the establishment of steady-state condition guaranteed a constant viral concentration close to cells, thus strengthening the efficiency of infection. Finally, we introduced the concept of effective MOI, a more appropriate variable for microfluidic infections that considers the number of adenoviruses in solution per cell at a certain time.  相似文献   

The impact of foreign technological innovation on domestic employment via the industry mix     

Luisa Gagliardi 《Research Policy》2019,48(6):1523-1533

This paper analyses how differences in the industry composition of British local labour markets moderate the impact of foreign technological competition in manufacturing on domestic employment, both overall and across subsamples of workers with different skill levels (high, intermediate and low). To this scope, it exploits both variations across industries in the exposure to the introduction of new technologies, and information on how such industries are combined in shaping the industrial structure of each place. The analysis shows that places that specialise in industries undergoing substantial technological competition due to foreign innovation experience a reduction in total employment that is 4.5% larger than places less exposed based on their initial industry mix. This negative performance is mainly explained by a decrease in the employment opportunities for intermediate-skilled workers. Limited support is found for successful adaptation trajectories over time across British local labour markets.  相似文献   

Evolution of the personal teaching models of prospective secondary school science teachers as expressed through metaphors     

Lucía Mellado  Juan L. de la Montaña  María Rosa Luengo  María Luisa Bermejo 《Cultural Studies of Science Education》2018,13(4):957-982

This study analyses the evolution of the personal metaphors of 31 science graduates enrolled in a Master’s degree course in Secondary Education Teaching during the 2012–13 academic year. The instrument used was an open questionnaire that included asking the participants to make drawings representing the roles of the teacher. Four categories of metaphor were considered: behaviourist/transmissive, cognitivist/constructivist, situative/socio-historical, and self-referential. It was found that most of the prospective teachers were indeed able to conceptualize their roles in the form of metaphors. Comparison of the results before and after the teaching practicum revealed no changes in most of the participants’ metaphors and associated models. Instead, these appeared to be firmly set already at the beginning of the Master’s course, and remained uninfluenced by either the course or the practicum. Only a minority of the participants showed changes in their metaphors—5 with progressive changes, and 5 with regressive changes.  相似文献   

Strategic motivators and expected benefits from e-commerce in traditional organisations     

Luisa Piris  Guy Fitzgerald  Alan Serrano 《International Journal of Information Management》2004,24(6):489-506

This paper aims to identify the strategic motivators and expected benefits related to the implementation of e-commerce infrastructures in traditional “brick and mortar” organisations. Despite the fact that the clearest benefit from e-commerce might be expected to come from contribution to corporate profits, either from an increase of sales or reduction of costs, but this may not be the case. The literature suggests that there are different ways in which the potential benefits can be assessed. These ways are directly related to the evolution of e-commerce. This research has chosen six representative organisations from different sectors to explore their rationales for their e-commerce strategies. One of the main benefits reported is to increase the focus on the customer and improving internal communications. Additionally, obtaining competitive advantage was found to be a powerful motivator, despite the fact that the recent academic literature suggests that this is very difficult to achieve.  相似文献   

Knowledge,nutrition and coaching pedagogy: a perspective from female Brazilian Olympic gymnasts     

Carly Stewart  Laurita Marconi Schiavon  Maria Luisa Bellotto 《Sport, Education and Society》2017,22(4):511-527

It is acknowledged that knowledge and knowledge bases are an important part of coach and athlete learning and that the coach – athlete relationship is crucial to knowledge created, shared and used. This said knowledge about nutrition as constructed by elite gymnasts would seem particularly important in a culture long associated with weight control practices and disordered eating. This paper provides an insight into the ways that 10 Brazilian Olympic gymnasts construct ideas pertaining to nutritional knowledge across generational periods (between 1980 and 2004) where significant organisational change in Women’s Artistic Gymnastics in Brazil occurred and included the introduction of dieticians. Drawing upon different knowledge types and paying attention to the coaching context, the life histories of 10 Olympic gymnasts were used to open a window on knowledge construction pertaining to nutrition by three generations of gymnasts. The findings draw attention to two main illustrative themes. Firstly, coaches’ personal knowledge, whilst perceived as incomplete by gymnasts, reinforced a narrative of weight loss for gymnasts regardless of generation. Secondly, the younger generations of gymnasts perceived that the introduction of dieticians into structured provision enabled them to use better structured knowledge, and with it a sense of increased autonomy and corporeal learning via the construction of tacit embodied knowledge leading to healthier practices. Reflections are given to the role of the coach, dieticians and pedagogical actions, and the continued reshaping of knowledge in elite gymnastics.  相似文献   

Graphic design： A sustainable solution to manage the contents of teaching materials     

Garcia Izaguirre  Victor Pier  Castello Maria  Luisa Arvizu  Sanchez Eduardo 《美中教育评论》2010,(11):27-35

There is a concern that the teaching of subjects is applied not only with support from a set of technological devices, but largely in the proper use of teaching and new technologies. Taking this idea, the authors develop a research and sustainable design that result in educational materials in solid content and technological innovation, also to have the benefit of learning process of a particular subject. The project is in its stage of development of educational materials, which indicates that only the experiment is missing.  相似文献