The representation of the world in national Arab news agencies: an exploration of (trans)national networks in the official Arab media

The purpose of this paper is to draw a map of the representation of the world and of Arab states as reflected by the countries of the region. To do so, we have analysed the news (4,093 news randomly collected on February and August 2005) produced by the governments of the Arab states through their national news agencies. Several regional and world maps had been constructed to show the official Arab representation of the World, the Arab countries conflict agenda, the persistence of colonial ties (with the European metropolis) and the emergence of new relationships (Asian countries). The representation of the world that appeared in the analysis focuses its interest on the USA, the war in Iraq, the Israel-Palestine conflict, the United Kingdom, France, and Iran. The Arab regional powers organise the flow of information (Saudi Arabia and Egypt) and the colonial past determines the current structure of communication (French-speaking bloc and English-speaking bloc).

Bifunctional primary amine 2-aminobenzimidazole organocatalyst anchored to trans-cyclohexane-1,2-diamine in enantioselective conjugate additions of aldehydes

Bifunctional chiral primary amine 8 containing an (S,S)-trans-cyclohexane-1,2-diamine scaffold and a 2-benzimidazole unit is used as a general organocatalyst for the Michael addition of α,α-branched aldehydes to nitroalkenes and maleimides. The reactions take place, with 20 mol % of catalyst in dichloromethane at rt for nitroalkenes and with 15 mol % catalyst loading in toluene at 10 °C for maleimides, in good yields and enantioselectivities. DFT calculations demonstrate the bifunctional character of this organocatalyst activating the aldehyde by enamine formation and the Michael acceptor by double hydrogen bonding.

Small archaeohyracids (Typotheria, Notoungulata) from Chubut Province, Argentina, and central Chile : implications for Trans-Andean temporal correlation / Marcelo Reguero -- [et al.].

n.s. no.48(2003)

O que queremos ser quando crescermos? Diálogos imaginários com um trans-humanista

Through an imaginary dialogue with a defender of the transhumanism – whose most significant representative is the philosopher Nick Bostrom – this paper aims to critically evaluate the ethical legitimacy of becoming a posthuman when we grow up. After a characterization of the transhumanist project and a definition of posthuman condition, the axiological reasons that underlie the desire to become a posthuman are examined.In a second momentit will be discussed the issue of whether we should want to be a posthuman when we grow up. A comparison is carried out between the relative strength of the arguments for the legitimacy of the transhumanist project and the possible objections, which are mainly based in an appeal to the idea of human nature, that are usually produced by the critics of transhumanism, such as Francis Fukuyama. Finally, the real possibilities of becoming a post human are outlined and, considering the uncertainty about the future and the difference between what can and what should be done, we are asked toreally think about what we want to be.