Possibilités d'accroissement de la productivité économique du zébu malgache par amélioration génétique et alimentation intensive

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Note sur un élevage d'oies des Landes avec essais de production des foies gras à Madagascar

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Bushfire in Madagascar: natural hazard, useful tool, and change agent

Bushfire does not usually figure on lists of natural hazards in Madagascar, despite being damaging hazard on the island. This chapter argues that the lack of attention to fire comes from the fact that fire is multivalent, ambiguous, and flexible, being simultaneously an occasional 'hazard' for thatch-roof huts or crop fields, a 'useful tool' that farmers and pastoralists use to manage vegetation, and a major transformational force, or 'change agent', that damages land and forest. The chapter builds on the concept of pyric phases, identifying six important pyric phases in which fire serves, or is perceived to serve, different roles as hazard, tool, or change agent

Le equazioni svelate. Breve storia delle equazioni di Produzione di Merci a Mezzo di Merci

In the first part of Production of Commodities by Means of Commodities, four equation systems are introduced: three are drawn up in order to solve the problem of relative prices; the last one is devised to define a suitable standard of prices. The book was published in 1960, but\u2014as we are told in the preface\u2014its \u2018central propositions\u2019 and a first version of the price equations had been originally conceived and written more than 30 years before, when the author was still in his twenties. Having access now to the Sraffa Papers, preserved in the Wren Library, we can ascertain the intellectual origin of the equations. In this paper the analytical path that led to the final draft of the price equation is followed, step by step, and the link between these equations and Sraffa's quest for an \u2018invariable standard of value\u2019 is clarified