scholarly journals Media crisis and disinformation: the participation of digital newspapers in the dissemination of a denialist hoax

2021 ◽  
Author(s):  
Lorena Cano-Orón ◽  
Dafne Calvo ◽  
Germán Llorca-Abad ◽  
Rosanna Mestre-Pérez
Keyword(s):  
Digital Media ◽  
Three Dimensional ◽  
Three Dimensional Model ◽  
Attention Economy ◽  
Media Ecosystem ◽  
The Media ◽  
Current Context ◽  
The Relationship ◽  
Digital Newspapers

Disinformation is a communicative phenomenon that frequently feeds on political or electoral topics, as well as other aspects of our reality. This research takes as a case study the coverage given by the Spanish digital media to a hoax broadcast during the Filomena storm in 2021 that insisted that the snow was plastic. The purpose of this work is to analyze the instrumentalization of fake information as an expression of the information media crisis in the current context of disinformation. We set out four specific objectives: (SO1) to study the spread of the hoax through the media, (SO2) to analyze the construction of headlines in the news pieces, (SO3) to investigate the treatment of the hoax in the content of the pieces, and (SO4) to analyze the sources used in the pieces. To reflect on this phenomenon, we propose a three-dimensional model (structural, economic, and pragmatic) aimed at clarifying the relationship between the logic of the spread of hoaxes on the Internet and the role played by traditional media in their diffusion. The methodology used combines workflow techniques of digital methods with quantitative and content analyses. The results reveal the appropriation of certain communication strategies by digital newspapers aimed at obtaining visits. We conclude that the Spanish media, by adapting to the dynamics of disinformation irresponsibly encouraged by the attention economy, subscribe to and reinforce the crisis of credibility faced by the media ecosystem.

Mediascape and Movement

2019 ◽  
pp. 100-122
Author(s):  
Francis L. F. Lee
Keyword(s):  
Hong Kong ◽  
Digital Media ◽  
Political Communication ◽  
Protest Movements ◽  
The Public ◽  
Mainstream Media ◽  
The Media ◽  
The Impact ◽  
The Relationship

This chapter reviews the relationship between the media and the Umbrella Movement. The mainstream media, aided by digital media outlets and platforms, play the important role of the public monitor in times of major social conflicts, even though the Hong Kong media do so in an environment where partial censorship exists. The impact of digital media in largescale protest movements is similarly multifaceted and contradictory. Digital media empower social protests by promoting oppositional discourses, facilitating mobilization, and contributing to the emergence of connective action. However, they also introduce and exacerbate forces of decentralization that present challenges to movement leaders. Meanwhile, during and after the Umbrella Movement, one can also see how the state has become more proactive in online political communication, thus trying to undermine the oppositional character of the Internet in Hong Kong.

scholarly journals Analysis of Cyclist’s Drag on the Aero Position Using Numerical Simulations and Analytical Procedures: A Case Study

2020 ◽  
Vol 17 (10) ◽  
pp. 3430 ◽  
Author(s):  
Pedro Forte ◽  
Daniel A. Marinho ◽  
Pantelis T. Nikolaidis ◽  
Beat Knechtle ◽  
Tiago M. Barbosa ◽  
...  
Keyword(s):  
Linear Regression ◽  
Numerical Simulations ◽  
Three Dimensional ◽  
Three Dimensional Model ◽  
Paired Samples ◽  
Computational Fluid Dynamics Cfd ◽  
Analytical Procedures ◽  
Previous Training ◽  
Very High

Background: Resistance acting on a cyclist is a major concern among the cycling fraternity. Most of the testing methods require previous training or expensive equipment and time-consuming set-ups. By contrast, analytical procedures are more affordable and numerical simulations are perfect for manipulating and controlling inputs. The aim of this case study was to compare the drag of a cyclist in the aero position as measured using numerical simulation and analytical procedures. Methods: An elite male cyclist (65 kg in mass and 1.72 m in height) volunteered to take part in this research. The cyclist was wearing his competition gear, helmet and bicycle. A three-dimensional model of the bicycle and cyclist in the aero position was obtained to run the numerical simulations. Computational fluid dynamics (CFD) and a set of analytical procedures were carried out to assess drag, frontal area and drag coefficient, between 1 m/s and 22 m/s, with increments of 1 m/s. The t-test paired samples and linear regression were selected to compare, correlate and assess the methods agreement. Results: No significant differences (t = 2.826; p = 0.275) between CFD and analytical procedures were found. The linear regression showed a very high adjustment for drag (R2 = 0.995; p < 0.001). However, the drag values obtained by the analytical procedures seemed to be overestimated, even though without effect (d = 0.11). Conclusions: These findings suggest that drag might be assessed using both a set of analytical procedures and CFD.

scholarly journals New indicators on fabric drape evaluation based on three-dimensional model

2019 ◽  
Vol 90 (11-12) ◽  
pp. 1291-1300
Author(s):  
Zhicai Yu ◽  
Yueqi Zhong ◽  
R. Hugh Gong ◽  
Haoyang Xie
Keyword(s):  
Point Cloud ◽  
Three Dimensional ◽  
Woven Fabrics ◽  
Woven Fabric ◽  
Angle Distribution ◽  
Bending Rigidity ◽  
Three Dimensional Model ◽  
Fabric Drape ◽  
Fabric Weight ◽  
The Relationship

To evaluate the ability of woven fabrics to drape in a more accurate way, a three-dimensional point cloud of a draped woven fabric was captured via an in-house drape-scanner. A new indicator, total drape angle (TDA), was proposed based on the three-dimensional fabric drape to characterize the ability of a woven fabric to drape. The relationship between TDA and the drape coefficient (DC) was analyzed to validate the performance of TDA. The result indicated that TDA is more stable and representative than the traditional DC in characterizing the ability of a woven fabric to drape. In addition, the drape angle distribution function (DADF) of the triangular mesh was employed to describe fabric drape, as well as to bridge the gap between drape configuration and the warp bending rigidity of woven fabric. The results showed that the correlation coefficient between the real warp bending rigidity value and what was predicted warp based on DADF and fabric weight was 0.952.

scholarly journals Disassembly Sequence Planning (DSP) Applied to a Gear Box: Comparison between Two Literature Studies

2020 ◽  
Vol 10 (13) ◽  
pp. 4591 ◽  
Author(s):  
Leonardo Frizziero ◽  
Alfredo Liverani
Keyword(s):  
Three Dimensional ◽  
Evaluation Criteria ◽  
Three Dimensional Model ◽  
Specific Component ◽  
Disassembly Sequence Planning ◽  
Sequence Planning ◽  
New Methods ◽  
Disassembly Sequence ◽  
Mechanical Products

This work aims to analyze the characteristics and importance that design techniques for disassembly assume in the modern design phase of a mechanism. To this end, the study begins by considering a three-dimensional model of a gear motor, taken from the components of which the overall drawings are arranged and from the relief of those not available. Once the mechanism has been digitally reconstructed, the activity focuses on the study of the optimal disassembly sequence by comparing different methodologies, according to two evaluation criteria—minimizing the time taken and minimizing the number of tool changes necessary to complete the sequence. The main results of the work are (1) defining a standard methodology to improve disassembly sequence planning, (2) finding the best disassembly sequence for the specific component among the literature and eventually new methods, and (3) offering to the industrial world a way to optimize maintenance operations in mechanical products. Referring to the limitation of the present works, it can be affirmed that the results are limited to the literature explored and to the case study examined.

A three-dimensional gravity model of the southern contact of the Sebago pluton, Maine

1998 ◽  
Vol 35 (6) ◽  
pp. 649-656 ◽  
Author(s):  
Mark D Behn ◽  
J Dykstra Eusden, Jr. ◽  
John A Notte III
Keyword(s):  
Three Dimensional ◽  
Average Thickness ◽  
Uniform Thickness ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Metasedimentary Rocks ◽  
The North ◽  
Dimensional Gravity ◽  
Relationship Of ◽  
The Relationship

The Sebago pluton is a two-mica granite that intruded the metasedimentary rocks of the Central Maine Terrane around 292 Ma. In recent years, geologists have raised an increasing number of questions related to the overall thickness of the Sebago pluton and the position of its subsurface contact with the underlying metasedimentary rocks. Past studies have shown the Sebago pluton to be a thin, 1-2 km thick, subhorizontal sheet dipping 3° to the northeast. This study examines anomalies in the Earth's gravitational field related to the southern portion of the Sebago pluton, specifically to determine the thickness of the pluton and to locate the subsurface contact between the pluton and the underlying metasedimentary rocks. A three-dimensional model shows the thickest portions of the pluton (~1.8 km) to occur at the bottom of a bowl hape along the southwestern contact. Moreover, the model shows the pluton to thin toward the northern and eastern regions of the study area, where the average thickness is less than 0.5 km. The pluton appears to extend southward below the cover of the metasedimentary rocks along the southwestern contact. Thus, contrary to previous models, the Sebago pluton is not a northeasterly dipping sheet of uniform thickness, but rather an arched sheet with an irregular thickness extending beneath the metasedimentary rocks along both its northern and southern contacts. Based on this new geometry, either the relationship of the pluton to the surrounding metamorphic zones must be modified, or the possibility must be considered that the Sebago pluton is actually a composite batholith, composed of a younger (Permian) granite to the north and an older (Carboniferous) granite to the south.

scholarly journals The Vienna New Years Concert as a media phenomenon

New Sound ◽  
2013 ◽  
pp. 139-149
Author(s):  
Marija Maglov
Keyword(s):  
Media Representation ◽  
Television Network ◽  
Starting Point ◽  
The Media ◽  
The Relationship

This paper is aimed at drawing attention to the problem of the media representation of artistic music, through the case study of the television broadcast of the New Year's Concert in Vienna. The text contains a brief historic summary of the concert and its broadcast within the European television network, Eurovision. Using this year's broadcast (2013) as an example, certain aspects are marked that potentially represent a starting point for further interpretations of the New Year's Concert and, generally, the relationship between artistic music and media.

scholarly journals Automated News in Brazilian television: a case study on the AIDA system (Globo-Brazil)

2019 ◽  
pp. 255-274
Author(s):  
Renato Essenfelder ◽  
João Canavilhas ◽  
Haline Costa Maia ◽  
Ricardo Jorge Pinto
Keyword(s):  
Artificial Intelligence ◽  
Social Networks ◽  
Economic Crisis ◽  
Competitive Environment ◽  
Mainstream Media ◽  
Television Network ◽  
Secondary Role ◽  
Media Ecosystem ◽  
The Media

Technological advancements have created a media ecosystem in which traditional journalism sees its existence strongly threatened by the emergence of new players. Social networks have created a competitive environment that, whether due to its dispersion or its capillarity, has relegated the mainstream media to a secondary role in the media ecosystem. Ironically, the technologies that threaten traditional journalism are also those that can save it; provided they are used correctly. Journalism, weakened by the economic crisis and with increasingly smaller newsrooms, has artificial intelligence as an opportunity to recover a certain centrality in the media ecosystem. This paper studies AIDA, a project from the Brazilian television network Globo. This project looked to automation as a way to avoid errors and ambiguities in the news. The study of the AIDA case, complemented by interviews, presents the challenges to achieve the automatization of news regarding electoral polls.

scholarly journals Calibration of a Three-dimensional slope stability evaluation in Brazilian iron open pit mine

2021 ◽  
Author(s):  
Vidal Félix Navarro Torres ◽  
Rodrigo Dockendorff ◽  
Juan Manuel Girao Sotomayor ◽  
Cristian Castro ◽  
Aristotelina Ferreira da Silva
Keyword(s):  
Three Dimensional ◽  
Structural Features ◽  
Open Pit ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Strength Parameters ◽  
Dimensional Section ◽  
The Stability ◽  
Evaluation Techniques

Abstract It has historically been frequent among geotechnical practitioners, that the stability analysis of the slopes of an open pit is performed using a two dimensional section representing the highest and steepest walls within a certain geological setting. However, the literature shows that to predict rupture events in an open pit, a three-dimensional analysis would better represent the actual conditions, as the spatial distribution of the lithology and the structural features play an important role when defining the stability of the slopes. This paper presents the case study of an open it located in Brazil, which experienced instabilities between the years 2001-2019. An evaluation of the behavior of the open pit was performed by calibrating the strength parameters to represent the best documented rupture events. The three-dimensional model was made using the FLAC3D software. The results show that there is a good correlation between the results of the model and the reports of past instabilities. Finally, recommendations are presented for the inter-ramp angles for each lithology based on the calibrated stability analyzes performed. This work seeks to contribute to the knowledge in evaluation techniques for the three-dimensional behavior of open pits.

scholarly journals The Digital Heritage of Covid-19 's Governance: How to Upgrade and Use the "Health Code" in the Post-Epidemic Era

2021 ◽  
Vol 2 (2) ◽  
pp. 235-241
Author(s):  
Wu Siqi ◽  
Wu Yi
Keyword(s):  
Digital Media ◽  
The Body ◽  
Ethical Problems ◽  
Digital Heritage ◽  
Full State ◽  
The Media ◽  
Digital Projection ◽  
And Control ◽  
The Relationship

The outbreak of Covid-19 accelerated the practice of digital survival, and the "health code" launched based on the needs of epidemic prevention and control has become the representative of digital survival media, which is jointly built by science and technology enterprises and government departments. it has realized the full-state use in China, and accumulated long-term digital survival experience for the country, enterprises and individuals. At the same time, there are some media ethical problems in the use of Health Code, such as distinguishing users, leaking information, imprisoning the body and leading to the lack of subjects. In order to resolve the risk, we should re-examine the relationship between people and the media from the perspective of the subject, treat "health code" as a digital projection of personal health, and regain the service principle of digital technology. Humanize the "health code" and other digital media.

Developing of a Simscape Multibody Contact Library for Gothic Arc Ball Screws: A Three-Dimensional Model for Internal Sphere/Grooves Interactions

2019 ◽  
Author(s):  
Antonio Carlo Bertolino ◽  
Giovanni Jacazio ◽  
Stefano Mauro ◽  
Massimo Sorli
Keyword(s):  
Complex Geometry ◽  
Three Dimensional ◽  
Ball Screw ◽  
Mechanical Modeling ◽  
Three Dimensional Model ◽  
Simulation Tools ◽  
First Case ◽  
Multibody Contact ◽  
Helical Grooves

Abstract The Simscape Multibody software is a set of libraries and mechanical modeling and simulation tools for use with Simulink®. For what concerns the contact library, currently it contains only the models to describe impacts between simple geometries, such as spheres, cylinders and planes. When this environment is intended to be used to simulate the 3D dynamics of a system with a complex geometry, such as a ball screw, the built-in blocks are not sufficient. This paper presents a new contact library, containing blocks specifically designed to handle the contacts between a sphere and the two gothic arc helical grooves of a ball screw, as well as the interaction between adjacent spheres. The developed blocks are exploited to create a first case study dynamic model of a single nut not preloaded ball screw in presence of internal backlash. The results highlight the superiority of this multibody approach with respect to the quasi-static or lumped parameters models in terms of extracted information and understanding of the internal mechanics.

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