1,357,157 research outputs found
The Godunov method for a 2-phase model
No full textAbstract
We consider the Godunov numerical method to the phase-transition trafic model, proposed in [1], by Colombo, Marcellini, and Rascle. Numerical tests are shown to prove the validity of the method. Moreover we highlight the differences between such model and the one proposed in [2], by Blandin, Work, Goatin, Piccoli, and Bayen. </jats:p
AUTONOMOUS VEHICLES DRIVING TRAFFIC: THE CAUCHY PROBLEM*
No full textThis paper deals with the Cauchy problem for a PDE-ODE model, where a system of two conservation laws, namely the Two-Phase macroscopic model proposed in [Rinaldo M. Colombo, Francesca Marcellini, and Michel Rascle, SIAM J. Appl. Math., 70(7):2652–2666, 2010], is coupled with an ordinary differential equation describing the trajectory of an autonomous vehicle (AV), which aims to control the traffic flow. Under suitable assumptions, we prove a global-in-time existence result
Crossed analyses of a sport photograph. Sport photojournalism and disabled athletes: Presentation of body and meaning production
No full textThis paper presents three analyses, separately constructed by three researchers, of the same sport press photography, made by Bob Martin (sport photojournalist) during the Athens Paralympic Games in 2004. The first one, which has a sociological approach, compares the studied photo to those of a diachronic corpus of disabled swimming's photos produced in France. The second one, which is more semiotic, casts a synchronic glance by placing the image in the rhetoric chain of the sport's photography and in the photographer's production. The third one relates the image's composition to the thesis of the liminal situation of disabled people, which symbolizes the social place they are assigned. The goal of this work - which is the result of interactions in a methodological interdisciplinary seminar - is to lead to an epistemological and methodological reflexion about the conditions in which images are used in social sciences; the richness, the interests and limits of their use as data in the study of the disabled's social representations as well as their evolution will be particularly considered. © 2009 Association ALTER
Contested issues in research on the media coverage of female Paralympic athletes
No full textThe Paralympic Games are considered to be the second biggest sporting event in the world, after the Summer Olympic Games, however, research on the media coverage of athletes with disabilities is in its infancy. More specifically, there is a lack of studies focusing on whether quantitative and qualitative differences exist in the manner in which the female and male Paralympic athletes are represented in the print media. In contrast, there is an extensive body of scholarly research on the differential media treatment of female and male Olympic athletes. This article includes three aspects: (1) a brief summary of the media coverage of non-disabled female athletes, with the aim of providing some research indicators that could be used in analogous studies of Paralympic sport; (2) the examination of the limited media literature on the portrayals of female and male Paralympic athletes; and (3) a discussion of possible future research in this relatively unexplored, area of media, gender and Paralympic sport. © 2011 Copyright Taylor and Francis Group, LLC
The media coverage of female athletes with disability. Analysis of the daily press of four European countries during the 2000 Sidney Paralympic Games
No full textData concerning mediatization of the female athletes are showing that on the one hand, women are less represented than men and, on the other hand, their image is frequently sexualized. In addition, contrary to men, media often focuses on their social roles as mother, wife, etc, i.e. female athletes are frequently portrayed in scenes non related with the sports dimensions. It is also known that media treatment of disabled athletes is quite different from those of others athletes. But, which are the peculiarities concerning media treatment of female athletes with disabilities? In the present study a qualitative and quantitative analysis of the Paralympic Games in Sydney 2000 has taken place, including 108 articles from German, English, Spanish, and French newspapers. Our data shows that, contrary to what was expected, women with disabilities are not specially underrepresented compared to men; quantitatively there is no presence of a specific stigmatization. But a qualitative analysis of texts and photos shows that a stigmatization process is taking place through a more insidious form: the female Paralympic athletes are largely “infantilized” and “trivialized” (Jones et al., 1999) in the newspapers which cover the Paralympic Games
From Sydney to Beijing: The evolution of the photographic coverage of Paralympic Games in five European countries
No full textThe growth of the Paralympic Movement during the last few decades has been reinforced significantly by the Olympic reform process, particularly as the efforts of the IOC 2000 Commission fortified the relationship between Olympic and Paralympic Committees. However, this development is scarcely illustrated in the world media arena; several scholars draw attention to the dearth of coverage of elite athletes with disabilities in popular media. This article examines preliminary data regarding the evolution of the photographic coverage of five European countries over an eight-year period, from Sydney (2000) to Beijing (2008). The journalistic attention, as highlighted by the number of published images, has been raised during this period, and the coverage of female and male athletes matched the demographics of these five European countries. However, the data also reveals that the competitiveness and the abilities of Paralympic athletes are not highlighted, the majority of the images did not depict the athletes in action, but rather as motionless. © 2011 Taylor & Francis
- …
