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showing 10 items of 681 documents
Vetting and verifying multimodal false information. A challenge for democratic societies
2021
The rapid proliferation of fake news is a challenge for free societies, founded on freedom of expression and information, endangering their democratic systems through audience confusion. Fake news is a type of disinformation with the ability to alter the logical orientation of readers, and as evidenced in different academic publications, it can radicalize the citizen and favour violence. This news is also created to confuse audiences and reinforce certain trends. This is important enough to produce a scientific interest in information science studies and urge the creation of tools capable of detecting and identifying this type of news, especially those disseminated by social networks, where…
Region Community in Communication Theory
2014
The aim of the report is to determine how local and regional newspapers represent local communities and how their communicative integration has been promoted. Mass media, establishing community cognition about its existence, involvement into the community, identification and belonging to the community, represent a perfect model of interaction between community and communication. During the content analysis of the press publications of local newspapers of Latgale region the typological characteristics and classification are emphasized, the role of the press in the development of the region inhabitants is defined, the direction and structure of the editorial board activities, newspapers’ cont…
The Mediatization of E-Campaigning: Evidence From German Party Websites in State, National, and European Parliamentary Elections 2002-2009
2012
The rise of e-campaigning is often associated with its ability to circumvent journalistic principles of news selection and presentation. By this, parties and candidates are said to free themselves from the discretionary power of the mass media and to reach voters in an unfiltered way. This conventional wisdom is tested through a comparative content analysis of German party websites in state, national, and European parliamentary elections between 2002 and 2009. The results show that e-campaigns in all elections adhere in their messages to the media logic. Specifically, they replicate those patterns of offline coverage that have been held accountable for rising political alienation and civic …
Las interacciones mediáticas de la juventud boliviana: la competencia mediática de jóvenes de La Paz
2014
Se analizan los resultados de una investigación cualitativa en torno a los hábitos de consumo audiovisual y la competencia mediática de la juventud boliviana en la ciudad de La Paz. Los resultados del estudio muestran que la juventud de La Paz consume preferentemente programas televisivos, aunque se extiende con fuerza el uso de Internet, la telefonía móvil y los videojuegos, siendo los medios menos usados la radio y la prensa escrita. A pesar de percibirse como personas críticas, los jóvenes entrevistados muestran carencias en la importancia y necesidad de la educación mediática y de mayor reflexión acerca de los medios. São analisados os resultados de uma pesquisa qualitativa em torno dos…
Ion traps in nuclear physics : recent results and achievements
2016
Ion traps offer a way to determine nuclear binding energies through atomic mass measurements with a high accuracy and they are routinely used to provide isotopically or even isomerically pure beams of short-living ions for post-trap decay spectroscopy experiments. In this review, different ion-trapping techniques and progresses in recent nuclear physics experiments employing low-energy ion traps are discussed. The main focus in this review is on the benefit of recent high accuracy mass measurements to solve some key problems in physics related to nuclear structure, nuclear astrophysics as well as neutrinos. Also, several cases of decay spectroscopy experiments utilizing trap-purified ion sa…
Solid-liquid mass transfer coefficients in gas-solid-liquid agitated vessels
1998
The research on mass transfer coefficients in solid-liquid agitated systems has received substantial attention in the past, due both to the interest in fundamental aspects of mass transfer between particles and turbulent fluids and to the importance of practical applications. In contrast, little information is available on solid-liquid mass transfer when a third gaseous phase is also dispersed into the system, in spite of the importance of the applications of gas-solid-liquid agitated systems. In this work a suitable dissolution technique was used to measure the solid-liquid mass transfer coefficient in gas-solid-liquid vessels stirred by either radial or axial impellers. The mechanical pow…
Rotating magnetic fields as a means to control the hydrodynamics and heat/mass transfer in the processes of bulk single crystal growth
1999
The report discusses the possibility of using different types of rotating magnetic fields (RMF) and combinations of these to control the hydrodynamics and heat/mass transfer in the processes of bulk semiconductor single crystal growth. Some factors contributing to the efficiency of RMF influence in different technologies are analysed. Their specific practical application is illustrated by some examples.
Mass/charge balance as a tool to estimate dimensional change in polypyrrole-based actuators
2006
The deconvolution of the voltammograms of polypyrrole electrochemistry has proved to be possible through the electrochemical quartz crystal microbalance data using the F(dm/dQ) function. This deconvolution allows the evolution of the thickness of the polypyrrole films during their redox processes to be estimated and therefore, the mechanical contraction/decontraction of this polymer as a function of the ionic exchange processes can be evaluated. Keywords: Polypyrrole, EQCM, Thickness change
GM foods in Spanish newspapers.
2002
Media Effects on Positive and Negative Learning
2017
While educational science in the past mainly focused on students’ formal or intentional learning from courses, textbooks, or online tutorials in university contexts, communication science usually deals with ordinary citizens’ informal or unintentional learning from the mass media in everyday life. One of the general aims of the PLATO project is to bring these research traditions together. Therefore, this paper sums up research on media effects on positive and negative learning recently conducted; our studies show that media coverage is often biased and news media, therefore, contribute to negative as well as positive learning. Which kind of learning occurs, heavily depends on the way inform…