IR and the state of nature: the cultural origins of a ruling ideology

This article argues that the modern concept of the state of nature as the defining claim of IR theory was developed in the course of the intercultural/international encounter between the Spaniards and the Amerindian peoples after the discovery of America. The analysis of the Spanish debate at the time demonstrates that the concept of the state of nature was itself the product of a highly charged moral discourse. Its continuous and unreflected use in the discipline of International Relations, where it supposedly describes a precultural, presocial, premoral condition between states, therefore hides the cultural, social and moral meanings the concept carries with it and suppresses a normative discourse of International Relations past and present

Comparison of modern packings : assessing proper choice for post-combustion carbon capture absorption columns

CO2 capture from industrial flue gases is expected by IEA [1] to contribute to up to 19% of carbon mitigation by 2050. Absorption of CO2 into chemical solvents used in post-combustion capture processes is widely recognized as a reference path due to its high selectivity and CO2 recovery rate [2]. However, absorption and solvent regeneration columns required for that purpose are of huge sizes and further induce high investments impacting avoided CO2 cost. This impact is important enough so that it cannot be neglected when compared with operating unit costs [3]. We are presenting in this paper what is required in terms of packing characteristics, that is pressure drop, mass transfer performances and also liquid dispersion properties. This latter property, even if little discussed in the literature, is of great importance, since it will be used for determining the maximum height for packed beds as well as for column redistribution internals design. All these properties are presented for both random and structured packings and a discussion about packing choice is proposed, especially based mass transfer performances and on original dispersion results obtained for Mellapak and IMTP packing

Fruits and Plains: The Horticultural Transformation of America

Review of: "Fruits and Plains: The Horticultural Transformation of America," by Philip J. Pauly

A simple functional form for proton-208{}^{208}Pb total reaction cross sections

A simple functional form has been found that gives a good representation of the total reaction cross sections for the scattering from ${}^{208}$Pb of protons with energies in the range 30 to 300 MeV.Comment: 7 pages, 2 figure

A hierarchical consensus protocol for mobile ad hoc networks

2005-2006 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Brive-la-Gaillarde – Abri no 2 de Puy Jarrige

L’abri de Puy Jarrige II a été successivement étudié et fouillé par P. Lalande, J. Bouyssonie puis par G. Mazières en 1980 et enfin par J.-P. Raynal et P.-Y. Demars qui donnèrent une première description des gravures pariétales en 1985 dans le volume collectif L’Art des Cavernes publié par le ministère de la Culture. Ayant constaté en 2008, l’existence de gravures plus nombreuses que celles déjà signalées, nous avions envisagé une campagne de photographies et un relevé qui n’a pu avoir lieu f..