The impact of network embeddedness on research output     

Claudia N. Gonzalez-Brambila  Francisco M. Veloso  David Krackhardt 《Research Policy》2013

This paper aims to further our understanding of how embeddedness affects the research output and impact of scientists. The analysis uses an extensive panel data that allows an analysis of within person variation over time. It explores the simultaneous effects of different dimensions of network embeddedness over time at individual level. These include the establishment of direct ties, the strengths of these ties, as well as the density, structural holes, centrality, and cross-disciplinary links. Results suggest that the network dynamics behind the generation of quality output contrasts dramatically with that of quantity. We find that the relational dimension of scientists matters for quality, but not for output, while cognitive dimensions have the opposite effect, helping output, while being indifferent toward impact. The structural dimension of the network is the only area where there is some degree of convergence between output quantity and quality; here, we find a prevalence for the role of brokerage over cohesion. It concludes by discussing implications for both network research and science policy.  相似文献   

A fuzzy linguistic model to evaluate the quality of Library 2.0 functionalities     

Rubén Heradio  Francisco Javier Cabrerizo  David Fernández-Amorós  Manuel Herrera  Enrique Herrera-Viedma 《International Journal of Information Management》2013

Libraries incessantly undergo change determined by evolving user needs. These are often induced by the emergence of previously unavailable tools. Web 2.0 represents an example of such a need-shifting technology, which has led to an embrace of new user interactivity services for many library websites, thus coined Library 2.0. This paradigm shift calls for new evaluation models to include the implementation of Web 2.0 technologies. The aim of this paper is to present such a model, and to evaluate the quality of Library 2.0 functionalities, measuring the quality of the 2.0 services offered through the websites based on user perception. We adopt fuzzy linguistic modeling to represent user perception, and apply aggregation operations to linguistic labels in order to evaluate the quality of the new services. Furthermore, our model subsumes the LibQUAL+ methodology, allowing for the identification of specific 2.0 functionalities in need of improvement and of those outstandingly satisfied by the system.  相似文献   

Effects of Interviewer Gender on Survey Responses: Findings from a Household Survey in Mexico     

Flores-Macias  Francisco; Lawson  Chappell 《Int. Journal of Public Opinion Research》2008,20(1):100-110

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Effects of an intervention programme with teachers on the development of positive behaviours in Spanish physical education classes     

Tomás García-Calvo  Francisco Miguel Leo  Diana Amado  Juan José Pulido 《Physical Education & Sport Pedagogy》2016,21(6):572-588

Background: The physical education (PE) context has been emphasised as an ideal environment for developing positive behaviours among students. Under the Positive Youth Development paradigm, various initiatives have been conducted with the aim of promoting personal and social responsibility among adolescents. Self-Determination Theory has been widely used to analyse students’ motivational processes during PE classes.

Purpose: This study aimed to measure the effects of a multidisciplinary intervention with teachers on the development of positive behaviours in PE classes.

Participants: Twenty PE teachers participated in the study (M_age?=?35 years; SD?=?2.32) along with 777 of their students (M_age?=?12.81 years; SD?=?.93). The teachers (male?=?16; female?=?4) were between the ages of 29 and 48 years (M?=?35.2 years; SD?=?2.32). The students who participated in this study (male?=?377; female?=?400) were divided into 52 classes and were between the ages of 12 and 16 years (M?=?12.81; SD?=?.93).

Research design: A quasi-experimental design was used that consisted of a control group and three groups in which an intervention was developed. In the control group, the teachers did not receive any type of intervention; in the second group, the teachers received a training programme to develop strategies for supporting basic psychological needs and promoting positive behaviours; in the third group, the teachers received a didactic unit to promote positive behaviours; and in the last group the teachers received a combination of the two previous interventions.

Data analysis: A repeated-measures ANCOVA (analysis of covariance) was used for every dependent variable included in the study to analyse the effect of Group?×?Time interaction, including Gender and Grade Level as covariates. The fixed effects caused by Intercept, Group, Time, and the Group?×?Time interaction were calculated using compound symmetry as the type of covariance and restricted maximum likelihood as the estimation method.

Findings: By examining the differences between pre-test and post-test, it was determined that in comparison with the students in the control group, the students from the three experimental groups had generally improved scores on the variables related to positive behaviours, such as perceptions of the teacher's support, as well as the development of the targeted behaviours.

Conclusions: These results provide information about the efficacy of an intervention programme with teachers that consists of strategies for developing positive behaviour and support for basic psychological needs to promote the development of positive student behaviour.  相似文献   

Prediction and the Periodical Aspect as Generators of Knowledge in a Social Practice Framework     

Gabriela?BuendíaEmail author  Francisco?Cordero 《Educational Studies in Mathematics》2005,58(3):299-333

We start from the assumption that school mathematics knowledge could be better explained if social practices were considered to be generators of knowledge. This perspective changes the way we look at what school mathematics knowledge is and what it takes to teach and learn it. In this article, we will present a teaching situation about periodic functions, which was designed with this perspective in mind. The design was based on the assumption that the scientific notion of periodic function is related with the social practice of prediction. In the situation, prediction as a social practice is transformed into a situational line of argument which redefines that which is periodical. The situation brings into play meanings for the repetition of a movement, which takes place in time in the context of graphs of functions. Our analysis of the situation will focus on the prediction tools that participants generated in order to define that which is periodical. We will conclude with some implications of our observations for the teaching of mathematics.  相似文献   

A blended learning curriculum for training peer researchers to conduct community-based participatory research     

Andrew D. Eaton  Francisco Ibáñez-Carrasco  Shelley L. Craig  Soo Chan Carusone  Michael Montess  Gordon A. Wells 《Action Learning: Research and Practice》2018,15(2):139-150

Peer researchers (PRs) are research team members who share traits (e.g. gender, age, sexual orientation, diagnosis, income, housing situation, etc.) with study participants. Participatory methods and some fields (e.g. HIV/AIDS) expect PRs to be equitably involved in a project. Moreover, in Canada, there is a current impetus to include ‘the patient’ in health research. PRs often join a project without any formal research training, yet they are frequently tasked with suggesting appropriate language, recruiting participants, conducting interviews, administering surveys, analyzing data, and presenting findings. While there is literature on PR hiring, ethical considerations of PR engagement, and PR experiences, the methods of training PRs remain underreported. A blended learning curriculum (i.e. combination of webinars, didactic in-person presentation, filmed simulation, etc.), informed by the principles of action learning and the concept of reciprocity, has shown preliminary effectiveness in training PRs across two studies. This paper will present the curriculum, alongside exploratory evaluation results (n?=?7), with details on how the curriculum changed from one study to the next and how reciprocity between academic and peer researchers led to stronger collaborations.  相似文献   

The financing of Spanish public universities     

José-Ginés Mora  Jordi Palafox  Francisco Pérez 《Higher Education》1995,30(4):389-406

The main features of the recent evolution of the Spanish universities are described in this paper. Of the three sets of reforms that are currently in progress (reforms of the teaching process, institutional evaluation and new financing models) we concentrate on the last one, introducing and discussing some proposals for the financing of Spanish public universities.The first part of the paper shows the recent institutional changes, the evolution of the university system (in students and in financial and human resources) over the last decade, its situation within the international context, the student demand, the graduate output and the labor market demand for graduates. In the second part, the proposal for revising the current financing model is described in detail.  相似文献   

Excitatory and inhibitory consequences of explicitly unpaired and truly random conditioning procedures on heart rate in rats     

Christopher L. Cunningham  Robert D. Fitzgerald  David L. Francisco 《Learning & behavior》1977,5(2):135-142

A comparison was made of heart-rate (HR) responses of restrained rats to CSs that were part of an explicitly unpaired or a truly random control procedure. Subsequent to these procedures, an assessment was made of the relative capacities of these CSs to affect an established HR CR in a combined-cue paradigm and to impede the development of a HR CR in a reversal-conditioning situation. The principal findings were (1) that the explicitly unpaired and truly random CSs generated HR responses of opposite direction, i.e., HR acceleration vs. HR deceleration, respectively, and (2) that conditioning of a decelerative HR CR to the CS that had earlier been employed in the explicitly unpaired procedure was retarded compared to what was obtained to the truly random CS. The two CSs did not have reliably different effects in the combined-cue test. It was suggested that the truly random CS may have produced both associative and nonassociative influences on HR. It was hypothesized further than the explicitly unpaired CS may have acquired the capacity to function as a conditioned inhibiting stimulus.  相似文献   

Quality early childhood education in Costa Rica? Policy,practice, outcomes and challenges     

Andrea Rolla San Francisco Corresponding author  Melissa Arias  Renata Villers 《Early Years: An International Journal of Research and Development》2005,25(2):113-127

High‐quality early childhood education has been shown to improve school outcomes in several developing and developed nations. The history of policy around pre‐school education in Costa Rica is described as background to presenting cross‐sectional data on the emergent literacy skills of low‐income Costa Rican children in kindergarten, 1st and 2nd grade from six schools (n?=?335). These data suggest that Costa Rican children show rather limited emergent literacy knowledge at the end of kindergarten. In addition, instruction in nine kindergarten classrooms is described and evaluated in order to provide vignettes of educational practice. The need for developmentally appropriate practice around emergent literacy skills and articulation with 1st grade is discussed and appropriate professional development is called for.  相似文献   

The influence of lexical and sublexical variables in normal and poor Spanish readers     

Sylvia Defior  Fernando Justicia  Francisco J. Martos 《Reading and writing》1996,8(6):487-497

The main aim of our study was to find out the effect of several lexical and sublexical variables (lexical category, lexical frequency, syllabic structure, and word length) in the acquisition of reading in a transparent language such as Spanish. The second goal of our study was the comparison of the effect of these variables in normal and poor Spanish readers. One hundred and forty children (aged between 6 and 12), twenty of whom were poor readers, were tested using a reading test of 306 items in which we balanced all the variables. The dependent variable was the percentage of correct responses in a decontextualized word reading test. Our results showed that all the above mentioned variables produced a significant effect on the number of errors made by the children. This pattern of results suggests no difference between the processes involved in the reading acquisition of Spanish and those implicated in deep orthographies such as English. Our results also showed no qualitative differences between normal and poor readers. The four variables studied showed the same behaviour in their effect on reading performance for both normal and poor readers, indicating that poor readers also use both the lexical and the phonological route. Our data suggest the universality of the dual route model, independent of the transparency or opaqueness of the different alphabetical languages.  相似文献