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71.
Sergio Picazo-Vela Isis Gutiérrez-Martínez Luis Felipe Luna-Reyes 《Government Information Quarterly》2012
Social media such as blogs, microblogs or electronic social networks can transform the ways in which we relate to other people and organizations. Government organizations are experimenting with social media to communicate with their constituents, and many analysts see in these media a powerful set of tools to reinvent government–citizen relationships. In this paper, we present the perceptions of risks, benefits and strategic guidelines about social media applications gathered from 250 public servants from Central Mexico, most of them working in information technology, as web masters or responding to Freedom of Information Act requests. The conclusions of the analysis are 1) that governments' participation in social media may result in improved communication and citizen participation, more transparency, and transfer of best practices among government agencies; 2) that a good implementation strategy is necessary to realize these benefits and to avoid risks; and 3) that the implementation of social media highlights the importance of updating laws and regulations, and of promoting changes in government culture and organizational practices. 相似文献
72.
Luis Radford 《Educational Studies in Mathematics》2014,85(3):405-422
This article provides a critical commentary on the concepts of representation and digital artefacts in Morgan and Kynigos’s article of this Special Issue. To set the context, in the first part, I examine some of the tensions that arose during discussions through the 1980s and 1990s about representation in mathematics education research. Then, I comment on the conceptual differences between Morgan’s and Kynigos’s approaches. These differences point to different epistemological assumptions that lead to different conceptualizations of artefacts in learning processes. In the last part, I argue that Morgan’s and Kynigos’s approaches have the merit of moving the discussion about representations to new theoretical horizons. I suggest, however, that a discussion about representations and digital artefacts requires a thematized account of the manner in which the phenomenological artefact- and representation-mediated knowledge produced by students in the classroom relates to the target cultural mathematical knowledge. Such an account, I contend, requires an explicit ontological conception of knowing and knowledge. I conclude the article with an example in which knowledge is considered as codified movement and knowing as the event of its enactment in concrete practice. Within this Hegelian materialist viewpoint, representations are neither predicated in terms of an adequacy between ideas and their representations nor as heuristic devices in meaning making processes. Representations are rather an integral part of the activity of knowledge presentation. 相似文献
73.
This article uses a case study to contribute to the debate on media-political clientelism and its relation to the theory of media systems. It proposes a cross-disciplinary approach between the fields of communication and political sciences and thus analyzes four dimensions to observe the evolution of these practices in the area of television policies during Spanish democracy: license granting, television ownership regulation, politicization of the public service, and partisan news coverage. The period analyzed includes conservative and social democrat governments, trying to find differences in clientelistic practices among the different political parties. The analysis demonstrates how partisan relationships have evolved and what mechanisms have been put in place to maintain clientelistic ties. 相似文献
74.
Luis Urrieta Jr. Lina Méndez Esmeralda Rodríguez 《International journal of qualitative studies in education》2013,26(10):1149-1168
This article examines how Latina/o professors perceive, experience, and reflect on the tenure and promotion process. Findings for this longitudinal study are drawn from a purposive sample of nine female and seven male, Latina/o tenure-track faculty participants. Using a Critical Race Theory, Latino Critical (LatCrit) Race Theory, and Chicana Feminist framework, this article documents fundamental inequities in the tenure and promotion policies and practices that affected the Latina/o faculty in this study. Using narrative data, educational biographies, in-depth semi-structured interviews, and unstructured ethnographic interviews, this study found four common themes: (1) tenure and promotion processes functioned as a “tool of fear,” (2) the tenure and promotion process was like a “moving target,” (3) tenure provided limited forms of respect but not full membership, and (4) Latina/o supervivencia enabled the professors to thrive despite unsupportive and sometimes hostile campus and departmental climates. 相似文献
75.
José Luis Ortega 《Infancia y Aprendizaje》2013,36(21):97-121
RESUMENSe presenta un modelo de educación especial basado en un enfoque sistemático de la enseñanza. La aplicación de este enfoque a la educación normal y a la especial presenta algunas diferencias. Se hace un desarrollo teórico de los principales componente del modelo (identificación de necesidades, definición de objetivos, análisis de tareas, evaluación, secuenciación), así como una descripción del procedimiento y las diversas técnicas relativas a cada uno de ellos (sistemas de incentivos, materiales, sistemas de registro, requisitos de los sujetos, etc.). 相似文献
76.
V. Luis Pantoja S. Enrique Arce O. Dolores García O. Ana García G. Iosune Elorduy 《Infancia y Aprendizaje》2013,36(42):97-109
ResumenEl propósito de este estudio fue diseñar un modelo válido para la adquisición de unos adecuados hábitos de estudio, basado en una combinación de estrategias de autorregulación y técnicas de estudio. Se procedió mediante un diseño exploratorio de línea de base múltiple, con un único sujeto que incluía: a) fase de pretest, b) primera fase de intervención, en la que se introdujeron las estrategias de autorregulación, c) segunda fase de intervención o de introducción de las técnicas de estudio, y d) fase de postest. El resultado fue un cambio experimental y terapéuticamente significativo en los hábitos de estudio y en las conductas exponentes de: tiempo de estudio, desatención, y velocidad y comprensión lectoras, las calificaciones experimentaron un ascenso progresivo. Estos cambios se mantuvieron y consolidaron en el seguimiento, las estrategias de autorregulación se han mostrado útiles para aumentar la probabilidad de ocurrencia de la conducta deseada y disminuir la de la no deseada. 相似文献
77.
Luis Marques Joäo Praja David Thompson 《Research in Science & Technological Education》2013,31(2):143-164
The programme Ciencia Viva of the Portuguese Ministry of Science and Technology aims to create a greater understanding of science and science education amongst scientists, teachers, school children and the general public, each of whom is encouraged to cooperate and interact through regular contacts. The purpose is to improve practical, experimental and other forms of investigative work. To accomplish such work in schools, an overview of the state of science education worldwide is presented in terms of old and new traditions of the teaching of the physical and historical sciences the latter including the teaching of fieldwork. Traditional practices are compared with those established recently in various parts of the world in which more carefully considered understanding of the nature of science and science education has been established. In illustration of good practice, an outline is offered of the nature and rationale of two sets of curricular materials. These were designed by a team comprising staff members of the University of Aveiro and secondary school teachers and were trialled in schools. These activities are concerned with the internal rock cycle and the internal energy of the Earth in relation to plate tectonic theory. They are also related to the processes of weathering, erosion, transportation and deposition of sedimentary rocks and structures (like wave and current ripple marks) which were formed as part of the external rock cycle driven by the Sun's energy. The account concludes with an outline of the sub programme 'Geology in Summer', a fieldwork programme which introduces a holistic understanding of the workings of the outer part of the Earth to the general public. Students' perspectives and teachers' views about these experiences are generally very positive and are presented at the end. The whole programme was evaluated by an international team of scientists and science educators. 相似文献
78.
José Albors-Garrigós Jose Luis Hervas-OliverAuthor VitaePatricia MárquezAuthor Vitae 《International Journal of Information Management》2009
For traditional industries it is a real challenge, not only to achieve a clear product differentiation, but also to provide adequate services in order to ensure value and customer fidelity. 相似文献
79.
The aim of this paper is to study the link relationships in the Nordic academic web space – comprised of 23 Finnish, 11 Danish and 28 Swedish academic web domains with the European one. Through social networks analysis we intend to detect sub-networks within the Nordic network, the position and role of the different university web domains and to understand the structural topology of this web space. Co-link analysis, with asymmetrical matrices and cosine measure, is used to identify thematic clusters. Results show that the Nordic network is a cohesive network, set up by three well-defined sub-networks and it rests on the Finnish and Swedish sub-networks. We conclude that the Danish network has less visibility than other Nordic countries. The Swedish one is the principal Nordic sub-network and the Finland network is a slightly isolated from Europe, with the exception of the University of Helsinki. 相似文献
80.
Luis Radford 《Educational Studies in Mathematics》2000,42(3):237-268
The purpose of this article, which is part of a longitudinal classroom research about students' algebraic symbolizations,
is twofold: (1) to investigate the way students use signs and endow them with meaning in their very first encounter with the
algebraic generalization of patterns and(2) to provide accounts about the students' emergent algebraic thinking. The research
draws from Vygotsky's historical-cultural school of psychology, on the one hand, and from Bakhtin and Voloshinov's theory
of discourse on the other, and is grounded in a semiotic-cultural theoretical framework in which algebraic thinking is considered
as a sign-mediated cognitive praxis. Within this theoretical framework, the students' algebraic activity is investigated in the interaction of the individual's
subjectivity and the social means of semiotic objectification. An ethnographic qualitative methodology, supported by historic,
epistemological research, ensured the design and interpretation of a set of teaching activities. The paper focuses on the
discussion held by a small group of students of which an interpretative, situated discourse analysis is provided. The results
shed some light on the students' production of (oral and written) signs and their meanings as they engage in the construction
of expressions of mathematical generality and on the social nature of their emergent algebraic thinking.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献