Search results for "Library Sciences"
showing 10 items of 114 documents
De la videopolítica a la ciberpolítica: debate entre candidatos y televisiones en cinco elecciones presidenciales
2019
Los medios de comunicacion se convierten en actores politicos tambien en el espacio digital, en donde su informacion construye una agenda que se relaciona con candidatos y ciudadanos. La presente investigacion analiza las cuentas oficiales de Twitter de las dos principales televisiones en Argentina, Peru, Ecuador, Honduras y Chile durante 28 dias, que corresponden con los procesos electorales y campanas de las elecciones presidenciales celebradas en America Latina en el periodo 2015-2017. A traves del estudio de 16.359 emisiones mediante herramientas como Python Twint, NVivo y SPSS, se correlacionan las tematicas mas relevantes en cada proceso electoral, poniendolas en discusion con las age…
Políticas públicas de lectura e investigación. El diseño del Plan Valenciano de Lectura
2017
Para determinar con exactitud qué acciones deben ser consideradas prioritarias en el diseño de las políticas públicas de lectura es necesario contar, en primer lugar, con equipos de investigación que aporten datos concretos que aseguren su éxito; en segundo lugar, con metodologías para su diseño, seguimiento y evaluación; en tercer lugar, con protocolos para su mejora y, finalmente, con indicadores para la medición de los objetivos y los resultados. Este artículo resume y reflexiona sobre los retos que enfrentan las políticas de lectura a partir de la revisión de las principales investigaciones e informes institucionales sobre el tema y describe el proceso de trabajo, las metodologías utili…
A Primer on Carnot Groups: Homogenous Groups, Carnot-Carathéodory Spaces, and Regularity of Their Isometries
2017
AbstractCarnot groups are distinguished spaces that are rich of structure: they are those Lie groups equipped with a path distance that is invariant by left-translations of the group and admit automorphisms that are dilations with respect to the distance. We present the basic theory of Carnot groups together with several remarks.We consider them as special cases of graded groups and as homogeneous metric spaces.We discuss the regularity of isometries in the general case of Carnot-Carathéodory spaces and of nilpotent metric Lie groups.
Mechanism change in a simulation of peer review: from junk support to elitism
2014
Abstract Peer review works as the hinge of the scientific process, mediating between research and the awareness/acceptance of its results. While it might seem obvious that science would regulate itself scientifically, the consensus on peer review is eroding; a deeper understanding of its workings and potential alternatives is sorely needed. Employing a theoretical approach supported by agent-based simulation, we examined computational models of peer review, performing what we propose to call redesign, that is, the replication of simulations using different mechanisms. Here, we show that we are able to obtain the high sensitivity to rational cheating that is present in literature. In additio…
The influence of Elfreda Chatman's theories: a citation context analysis
2018
The range of theoretical frameworks currently being used by researchers into information behaviour is abundant and diverse. We need to examine thoroughly the contribution of theories and models to further research, as this would help to improve future investigations in the field. This paper adopts this approach, by thoroughly examining the influence that Elfreda Chatman's three middle-range theories have had on subsequent research. A citation context analysis was carried out on the basis of those received by Information poverty theory, life in the round theory and normative behaviour theory. Analysis covered the year of publication, the type of work and the subject-matter of the citing docu…
The impact factor as a measuring tool of the prestige of the journals in research assessment in mathematics
2016
The (2-year) Impact Factor of Thomson-Reuters (IF) has become the fundamental tool for analysing the scientific production of academic researchers in a lot of countries. In this article we show that this index and the ordering criterion obtained by using it are highly unstable in the case of mathematics, to the extent that sometimes no reliability can be assigned to its use. We explain the reasons of this behaviour by the specific properties of the mathematical journals and publications, attending mainly the point of view of the researchers in pure mathematics. Using the Journal Citation Report list of journals as a source of information, we analyse the stability in the position of the math…
What to Expect and What to Focus on in SQL Query Teaching
2019
In the process of learning a new computer language, writing erroneous statements is part of the learning experience. However, some errors persist throughout the query writing process and are never corrected. Structured Query Language (SQL) consists of a number of different concepts such as expressions, joins, grouping and ordering, all of which by nature invite different possible errors in the query writing process. Furthermore, some of these errors are relatively easy for a student to fix when compared to others. Using a data set from three student cohorts with the total of 744 students, we set out to explore which types of errors are persistent, i.e., more likely to be left uncorrected by…
A Performance-Based Test for Assessing Students’ Online Inquiry Competences in Schools
2018
In this paper, we introduce a performance-based test for measuring adolescents’ competences in online inquiry. The test covers four competence dimensions: (1) searching and selecting relevant sources, (2) identifying the main ideas presented in the sources, (3) evaluating the credibility of the sources, and (4) synthesizing information across the sources. We implement a technological solution called NEURONE to carry out this routine. The scoring of the test data is demonstrated by presenting preliminary results of a case study. Finally, we discuss the strengths and limitations of the test.
Acceso abierto y revistas médicas españolas
2006
Versión final del artículo disponible en: http://db.doyma.es/cgi-bin/wdbcgi.exe/doyma/mrevista.fulltext?pident=13093056
Investigación pediátrica española financiada: contribución de Anales de Pediatría a su difusión
2017
Resumen: Objetivo: Identificar la investigación pediátrica española financiada publicada en revistas generales pediátricas incluidas en la WoS (2010-2014) y la de Anales de Pediatría (AP). Explorar la relación de la financiación con el prestigio de las revistas y describir sus condiciones para cumplir los mandatos de acceso abierto. Material y método: La financiación de los artículos publicados en revistas pediátricas generales se identificó utilizando el campo Agencia Financiadora de la WoS y revisando el documento original para AP. Para AP se identificaron las entidades financiadoras de los AF y se valoró la diferencia en la citación de los AF y los no financiados mediante test no paramét…