2,789 research outputs found
The meaning of internationalism in Angola:Were the Cubans âexportingâ the revolution or becoming âthe good colonizersâ?
Between 1975 and 1991, Cuba deployed to Angola more than 300 000 military personnel (of which some 2 000 lost their lives), and around 50 000 civilians worked as doctors, nurses, teachers or engineers. The cultural impact of the presence of Cubans in the first half of the civil war in post-independence Angola marked deeply a whole generation of men and women and is still pretty much under-researched. In this article, I discuss the meaning of internationalism in Angola for Cuban society, resorting to sources (literature, poetry, testimony and political speeches) that have been addressing the Angolan conflict and analysing the meaning of Cubaâs internationalist policy stemming from both Cuba and abroad. By showing the mobilizing and activist character of the Cuban experience in Angola, through accounts on internationalism, my argument is that, rather than imposing themselves in a foreign nation, the Cubans were attempting to incorporate Angola in their own national narrative, in the sense of Eric Hobsbawmâs ââ invention of traditionââ.«Exporter » la rĂ©volution ou devenir de «bons colonisateurs » ? Le sens de lâinternationalisme cubain en Angola.
Entre 1975 et 1991, Cuba a dĂ©ployĂ© en Angola plus de 300 000 soldats (dont 2 000 ont perdu la vie), et envoyĂ© 50 000 civils environ comme mĂ©decins, infirmiĂšres, enseignants ou ingĂ©nieurs. Cette prĂ©sence cubaine dans la guerre civile postĂ©rieure Ă lâindĂ©pendance en Angola a eu un impact culturel profond sur toute une gĂ©nĂ©ration dâhommes et de femmes. Elle est restĂ©e trĂšs peu Ă©tudiĂ©e. Cet article interroge le sens quâa eu lâengagement internationaliste en Angola pour la sociĂ©tĂ© cubaine, en sâappuyant sur des sources diverses (littĂ©rature, poĂ©sie, tĂ©moignages et discours politiques) qui ont Ă©voquĂ© le conflit en Angola et ont analysĂ© lâinternationalisme cubain. En mettant en Ă©vidence Ă partir de tĂ©moignages la mobilisation et le militantisme qui caractĂ©risent lâexpĂ©rience cubaine en Angola, je montre que les Cubains nâont pas tant cherchĂ© Ă sâimposer Ă une autre nation quâĂ intĂ©grer lâAngola dans leur propre rĂ©cit national Âą au sens de «lâinvention de la tradition » dâEric Hobsbawm.Ribeiro Raquel. The meaning of internationalism when the Cubans ââexportingââ the revolution or becoming ââthe good colonizersââ?. In: Outre-mers, tome 101, n°384-385,2014. CoopĂ©rants et coopĂ©ration en Afrique : circulations d'acteurs et recompostitions culturelles (des annĂ©es 1950 Ă nos jours) pp. 267-286
Quantum Corrections in Massive Gravity
We compute the one-loop quantum corrections to the potential of ghost-free
massive gravity. We show how the mass of external matter fields contribute to
the running of the cosmological constant, but do not change the ghost-free
structure of the massive gravity potential at one-loop. When considering
gravitons running in the loops, we show how the structure of the potential gets
destabilized at the quantum level, but in a way which would never involve a
ghost with a mass smaller than the Planck scale. This is done by explicitly
computing the one-loop effective action and supplementing it with the
Vainshtein mechanism. We conclude that to one-loop order the special mass
structure of ghost-free massive gravity is technically natural.Comment: v2: References added, 29 pages, 7 figure
Preheating in Dirac-Born-Infeld inflation
We study how the universe reheats following an era of chaotic
Dirac-Born-Infeld inflation, and compare the rate of particle production with
that in models based on canonical kinetic terms. Particle production occurs
through non-perturbative resonances whose structure is modified by the
nonlinearities of the Dirac-Born-Infeld action. We investigate these
modifications and show that the reheating process may be efficient. We estimate
the initial temperature of the subsequent hot, radiation-dominated phase.Comment: 23 page
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