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À l’occasion de la troisième édition du livre Le communisme primitif n’est plus ce qu’il était. Aux origines l’oppression des femmes, le texte qui suit et en constitue une préface inédite revient sur divers débats récents à propos préhistoire rapports sociaux entre les sexes.

Les dernières années ont vu se multiplier le recours au terme « incasable » pour qualifier une certaine catégorie de jeunes qui épuisent les institutions et sont ballotés l’une à l’autre. À partir d’une présentation du parcours vie l’hospitalisation jeune fille 10 ans présentant un attachement ins&#233...

Evidence is provided which shows that there is a wider variation in karyotypes of Rosa acicularis subspecies seen within their ranges in North America (Rosa acicularis Lindl. subsp. sayi (Schwein.) W.H. Lewis and the Eurasian species (Rosa acicularis Lindl. subsp. acicularis) than was originally presumed. It is proposed that the evolution and distribution of these karyotypes into two distinct s...

INTRODUCTION A 20% of world cycad species are found in Mexico, 80% of which are endemic (Vovides, 2000). At least nine species are present in the state of San Luis Potosí: Dioon edule, Zamia fi scheri, Z. loddigesii, Ceratozamia hildae, C. kuesteriana, C. latifolia, C. mexicana, C. microstrobila, and C. zaragozae (Yáñez-Espinosa, 2006) [Ed’s note: Zamia vazquezii is also found in San Luis Potos...

Herbal medicine has been practiced worldwide in accordance with the recognition of WHO as an essential building block for preliminary healthcare. India, as a rich biodiverse country, has a long history of traditional system of medicine. Orchids, one of the largest diverse angiospermic group of the family Orchidaceae, have occupied a distinct place in human life in terms of their beautiful flowe...

A Proofs of the theorems We first state a few helper lemmas. Lemma 1. Suppose the graph G is an (l, r)-regular graph, i.e. worker degree is l and task degree is r. Then, for each (w i , t j) 2 G, the following is true Pr(w i (t j) = 1) = 1 + (2 1)µ 2 , Pr(w i (t j) = 1) = 1 (2 1)µ 2 , and E[d + j ] = r 1 + (2 1)µ 2 , E[d j ] = r 1 (2 1)µ 2 where the probability and expectation are taken over th...

R. R. Borges, F. S. Borges, E. L. Lameu, A. M. Batista, K. C. Iarosz, I. L. Caldas, C. G. Antonopoulos, M. S. Baptista Pós-Graduação em Ciências, Universidade Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil. Departamento de Matemática, Universidade Tecnológica Federal do Paraná, 86812-460, Apucarana, PR, Brazil. Departamento de Matemática e Estat́ıstica, Universidade Estadual de Ponta Grossa,...