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41.
AbstractThis paper examines whether the difficulties in collaboration identified in the sessions of five consultants working with teachers and whether the consultants’ high participation (a type of hyper-responsibility) are related to the ongoing episode of the problem solving process, the origin of the request, and the topic of the session. Results show that collaboration difficulties tend to be more frequent when consultants and teachers discuss teaching-learning processes and that the consultants’ hyper-responsibility is more common: (a) when they are looking for solutions, (b) when they start some action with the support of the tradition of the educational setting or the support of the regulation, and (c) when they are discussing career guidance and mentoring. 相似文献
42.
This article presents a state-space modeling (SSM) technique for fitting process factor analysis models directly to raw data. The Kalman smoother via the expectation-maximization algorithm to obtain maximum likelihood parameter estimates is used. To examine the finite sample properties of the estimates in SSM when common factors are involved, a Monte Carlo study is conducted. Results indicate that the estimates of factor loading matrix, transition matrix, and unique variances were asymptotically normal, accurate, precise, and robust, especially for moderate and long time series. The estimates of state residual variances were positively biased for shorter time series, but as the length of series increased, these estimates became accurate and precise. To illustrate the application of SSM the technique is applied to empirical multivariate time-series data on daily affect collected from 2 individuals in a dating couple. 相似文献
43.
Son innumerables los textos producidos en nuestro país o traducidos a otros idiomas sobre la etiología y las manifestaciones de los denominados trastornos en el aprendizaje de la lectoescritura en sus diversas variantes. Pero pocas veces se aúnan los esfuerzos de investigadores y clínicos para ofrecer herramientas de tratamiento de estos problemas. Los autores de este artículo han conjugado ambos esfuerzos y ofrecen al lector interesado un diseño para tratar educativamente los problemas lectoescritos. 相似文献
44.
Alberto Martín-Martín Rodrigo Costas Thed van Leeuwen Emilio Delgado López-Cózar 《Journal of Informetrics》2018,12(3):819-841
This article uses Google Scholar (GS) as a source of data to analyse Open Access (OA) levels across all countries and fields of research. All articles and reviews with a DOI and published in 2009 or 2014 and covered by the three main citation indexes in the Web of Science (2,269,022 documents) were selected for study. The links to freely available versions of these documents displayed in GS were collected. To differentiate between more reliable (sustainable and legal) forms of access and less reliable ones, the data extracted from GS was combined with information available in DOAJ, CrossRef, OpenDOAR, and ROAR. This allowed us to distinguish the percentage of documents in our sample that are made OA by the publisher (23.1%, including Gold, Hybrid, Delayed, and Bronze OA) from those available as Green OA (17.6%), and those available from other sources (40.6%, mainly due to ResearchGate). The data shows an overall free availability of 54.6%, with important differences at the country and subject category levels. The data extracted from GS yielded very similar results to those found by other studies that analysed similar samples of documents, but employed different methods to find evidence of OA, thus suggesting a relative consistency among methods. 相似文献
45.
Alberto Martín-Martín Enrique Orduna-Malea Emilio Delgado López-Cózar 《Journal of Informetrics》2018,12(2):494-509
The new web-based academic communication platforms do not only enable researchers to better advertise their academic outputs, making them more visible than ever before, but they also provide a wide supply of metrics to help authors better understand the impact their work is making. This study has three objectives: a) to analyse the uptake of some of the most popular platforms (Google Scholar Citations, ResearcherID, ResearchGate, Mendeley and Twitter) by a specific scientific community (bibliometrics, scientometrics, informetrics, webometrics, and altmetrics); b) to compare the metrics available from each platform; and c) to determine the meaning of all these new metrics. To do this, the data available in these platforms about a sample of 811 authors (researchers in bibliometrics for whom a public profile Google Scholar Citations was found) were extracted. A total of 31 metrics were analysed. The results show that a high number of the analysed researchers only had a profile in Google Scholar Citations (159), or only in Google Scholar Citations and ResearchGate (142). Lastly, we find two kinds of metrics of online impact. First, metrics related to connectivity (followers), and second, all metrics associated to academic impact. This second group can further be divided into usage metrics (reads, views), and citation metrics. The results suggest that Google Scholar Citations is the source that provides more comprehensive citation-related data, whereas Twitter stands out in connectivity-related metrics. 相似文献
46.
Aria Amato Elena Arizio Salvatore Cataldo Emilio Francesco Orsega Mauro Sebastianelli 《文物保护研究》2018,63(4):194-200
In this work, the decision-making process involved in the restoration of the eighteenth century paliotto ligneo (wooden altar frontal) della chiesa del Santissimo Crocifisso all’Albergheria of Palermo is presented. Earlier research concerning mirror restoration was based on only a few case studies and the proposed techniques were not suitable for the artwork here. As a consequence, it was necessary to re-examine theories and protocols of modern restoration to plan an appropriate intervention of the altar frontal. Since in this artwork the role of mirrors is not to give back images, as usual, but rather to create special light effects and play of lights, this work aims to find an approach to the restoration of the altar frontal and its decorations that allows a homogeneous overview of the piece. Thus, the mirrors were not substituted or re-created. Only a visual integration of the damaged ancient mirrors was proposed, with the use of metallic-polymeric films, permitting a completely reversible restoration. 相似文献
47.
Maria Salinas Maite López-Garrigós Emilio Flores Maria Leiva-Salinas Javier Lugo Francisco J Pomares Alberto Asencio Miguel Ahumada Carlos Leiva-Salinas 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2016,26(1):121-128
Introduction
To study the pre-design and success of a strategy based on the addition of hemoglobin A1c (HbA1c) in the blood samples of certain primary care patients to detect new cases of type 2 diabetes.Materials and methods
In a first step, we retrospectively calculated the number of HbA1c that would have been measured in one year if HbA1c would have been processed, according to the guidelines of the American Diabetes Association (ADA). Based on those results we decided to prospectively measure HbA1c in every primary care patient above 45 years, with no HbA1c in the previous 3 years, and glucose concentration between 5.6-6.9 mmol/L, during an 18 months period. We calculated the number of HbA1c that were automatically added by the LIS based on our strategy, we evaluated the medical record of such subjects to confirm whether type 2 diabetes was finally confirmed, and we calculated the cost of our intervention.Results
In a first stage, according to the guidelines, Hb1Ac should have been added to the blood samples of 13,085 patients, resulting in a cost of 14,973€. In the prospective study, the laboratory added Hb1Ac to 2092 patients, leading to an expense of 2393€. 314 patients had an HbA1c value ≥ 6.5% (48 mmol/mol). 82 were finally diagnosed as type 2 diabetes; 28 thanks to our strategy, with an individual cost of 85.4€; and 54 due to the request of HbA1c by the general practitioners (GPs), with a cost of 47.5€.Conclusion
The automatic laboratory-based strategy detected patients with type 2 diabetes in primary care, at a cost of 85.4€ per new case.Key words: type 2 diabetes, HbA1c, diagnosis, preanalytical phase, test request appropriateness, costs, cost analysis 相似文献48.
Many studies have demonstrated the facilitating role of rhetorical devices in text comprehension, but there are also studies where rhetorical devices have not shown such effect. The present study sets out to explore whether readers’ knowledge of rhetorical devices (that is, rhetorical competence) moderates their effectiveness beyond general comprehension skills and, consequently, whether rhetorical competence may be considered a component skill of reading comprehension. 192 sixth- to seventh-grade students were assessed on rhetorical competence and were required to read a difficult marked text with specific rhetorical devices (a refutation, an objective, and four organizational signals) or the same text without them. After reading, students produced a summary in order to obtain three dependent variables: main ideas (as a measure of participants’ ability to select relevant information from the text), causal links between them (as an indicator of participants’ ability to grasp the logical structure of the text and to organize its ideas), and the combination of main ideas plus causal links (as an indicator of participants’ global comprehension of the text). Analyses controlling for general comprehension skills and other important variables (working memory, prior knowledge, decoding) demonstrated that: (a) readers of the marked text scored higher in terms of all dependent variables, and (b) rhetorical competence level moderated the effect of rhetorical devices on the composite measure (main ideas plus causal links) and on the organization of the summary by means of causal links. 相似文献
49.
Emilio Mordini David Wright Kush Wadhwa Paul De Hert Eugenio Mantovani Jesper Thestrup Guido Van Steendam Antonio D’Amico Ira Vater 《Ethics and Information Technology》2009,11(3):203-220
The ageing society poses significant challenges to Europe’s economy and society. In coming to grips with these issues, we
must be aware of their ethical dimensions. Values are the heart of the European Union, as Article 1a of the Lisbon Treaty
makes clear: “The Union is founded on the values of respect for human dignity…”. The notion of Europe as a community of values
has various important implications, including the development of inclusion policies. A special case of exclusion concerns
the gap between those people with effective access to digital and information technology and those without access to it, the
“digital divide”, which in Europe is chiefly age-related. Policies to overcome the digital divide and, more generally speaking,
e-inclusion policies addressing the ageing population raise some ethical problems. Among younger senior citizens, say those
between 65 and 80 years old, the main issues are likely to be universal access to ICT and e-participation. Among the older
senior citizens, say those more than 80 years old, the main issues are mental and physical deterioration and assistive technology.
An approach geared towards the protection of human rights could match the different needs of senior citizens and provide concrete
guidance to evaluate information technologies for them. 相似文献
50.
This paper focuses on three Southern European countries, Italy, Portugal and Spain, to explore examples of projects that provide signposts for a critical popular education that contributes to an ongoing democratic process – one whereby citizens are developed as social actors and members of a collectivity rather than simply passive producers/consumers. This approach would serve as an alternative to the traditional ‘top-down’ and current hegemonic economy-oriented discourses. In so doing, the paper seeks to redress an imbalance in the English language adult education and learning literature that often overlooks alternative discourses to the mainstream on and from this part of the world. 相似文献