4 resultados para Chaotic attractors
em Universidade Complutense de Madrid
Resumo:
Temperature chaos has often been reported in the literature as a rare-event–driven phenomenon. However, this fact has always been ignored in the data analysis, thus erasing the signal of the chaotic behavior (still rare in the sizes achieved) and leading to an overall picture of a weak and gradual phenomenon. On the contrary, our analysis relies on a largedeviations functional that allows to discuss the size dependences. In addition, we had at our disposal unprecedentedly large configurations equilibrated at low temperatures, thanks to the Janus computer. According to our results, when temperature chaos occurs its effects are strong and can be felt even at short distances.
Resumo:
The article addresses the analysis of time images furnished by a qualitative research made in Spain on the relations of working time and family/personal time. The analysis focuses on three widespread time metaphors used in day-to-day speeches by social agents. The first one is the metaphor of time as resource for action. Its value is equally economical, moral and political. Used in different context of action, it may mean something that can be either invested, donated generously to others, appropriated for caring for oneself, or spent without purpose with others. The second metaphor represents time as an external environment to which action must adapt. This metaphor shows many variants that represent time as a dynamic/static, repetitive/innovative, ordered/chaotic environment. In this external environment, the agents must resolve the problems of temporal embeddedness, hierarchy and synchronization of their actions. The third metaphor shows time as a horizon of action intentionality where the agents try to construct the meaning of their action and identity. Within this horizon the construction of a significant narrative connecting past and present experiences with future expectations is possible.
Resumo:
In recent years, the topic of car-following has experimented an increased importance in traffic engineering and safety research. This has become a very interesting topic because of the development of driverless cars (Google driverless cars, http://en.wikipedia.org/wiki/Google_driverless_car). Driving models which describe the interaction between adjacent vehicles in the same lane have a big interest in simulation modeling, such as the Quick-Thinking-Driver model. A non-linear version of it can be given using the logistic map, and then chaos appears. We show that an infinite-dimensional version of the linear model presents a chaotic behaviour using the same approach as for studying chaos of death models of cell growth.
Resumo:
From 1995 to 2015, Ecuador experienced one of its longest periods of deep political, social and economic crisis. During this interval, three democratically elected governments (Bucaram, 1997; Mahuad, 2000 and Gutiérrez, 2005) were overthrown and a critical juncture arose in 2006 as a result. Since 2007, and as a consequence of these chaotic circumstances, new populist strongmen ascended and, amid the biggest bonanza of oil revenues in Ecuadorian history, established a defective democracy. The gradual escalation of authoritarian tendencies during the three consecutive terms in which Rafael Correa has acted as President, have resulted in the severe weakening of the country’s democratic institutions, since Correa’s has strived to perpetuate himself in power through continual re-election into office, instead of building an institutional quality-democracy. This study aims to clarify the historical foundations of the recurrence of caudillistas, populist and authoritarian governments in Ecuador, revealing the basis of the specific path dependence of Ecuadorian politics. We also explore the Jungian theory, specifically the “pseudo-hero myth”, as the political narrative which Correa’s regime successfully employed to establish its hegemony. Additionally, we perform a psychological-political case analysis by examining the social psychology components underlying the Ecuadorian path dependence towards authoritarian and populist caudillos: Specifically, our case study is framed within historical institutionalism, which focuses on methodological individualism to attend various political science and psychological-political theories...