L'intervalle de temps variable existante entre le debut du traitement par la prenylamine et la sur­venu de toisade de pointe et d'autre oart la raretee de· telle camplication est considere par les auteurs c0mme une indice de !'intervention de d'autres fac­teurs, parmie Jes quelles, la perturbation electroly­tique doit jouer le role principal. 

Increased forest productivity has been obtained by improving resource availability through water and nutrient amendments. However, more stress-tolerant species that have robust site requirements do not respond consistently to irrigation. An important factor contributing to robust site requirements may be the distribution of biomass belowground, yet available information is limited. We examined ...

Climate warming at high latitudes is expected to increase root and microbial respiration and thus cause an increase in soil respiration. We measured the root and microbial components of soil respiration near Fairbanks, Alaska, in 2000 and 2001, in three black spruce (Picea mariana (Mill) B.S.P.) forests. We hypothesized faster decomposition correlates with greater amounts of both root and micro...

PNEUllOTHORAX DE L'ENFANT  Presentation de 17 cas. Revue de la litterature Par: Marandian M.H., Momenzadhe A., Wali­zade G., Kabiri M., A'skari H. et Movasat M.  Durant deux ans et demi, 17 cas de pneumo­thorax ont ete observes dans le service de Pedia­trie de !'Hospital Pahlavi de l'Univm-site de Teheran:  1)9 de ces malades etaient ages de moins d'un an. Le malade le plus age atteint de pn...

Leaf area (LA) is a valuable key for plant physiological studies, therefore accurate and simple models for LA determination are important for many experimental comparisons. A greenhouse experiment was conducted from October 2009 to February 2010 in two basil cultivars (Purple Ruffles and Genovese) to estimate LA, leaf dry weight (DW), leaf fresh weight (DW) and leaf dimensions (width-W and leng...

the market for carbon dioxide rights emerged as one of the tools applicable to the implementation of the measures adopted by the kyoto protocol to combat climate change. in this paper we analyze the case of spain, because their peculiar administrative division into seventeen autonomous communities, it is relevant to a detailed study of emissions and allowances of the industries that make up ...

ce n’est pas si surprenant que l’on trouve dans le textile historique de l’œuvre la plus estimée de malraux, la condition humaine, les traces des instances philosophiques. ce roman dépasse le dogmatisme d’un soi-disant roman de témoignage. il s’oriente vers les catégories plus souples et moins restreintes tel que le roman philosophique, alors même que l’apparence n’en dirait pas beaucoup sur l’...