Abstract Since climate change, intermittent droughts with various severities, poor management and uncontrolled abstraction of water resources, inattention to the balance these resources have caused crisis in recent decades, it is vitally important study scarcity, its changes future, effect change drought on scarcity through appropriate policies agricultural sector. To achieve this goal, present...

the life table parameters of schizaphis graminum (rondani) (hemiptera: aphididae) on four commercial cultivars of wheat (kohdasht, pastor, tajan and zagros) were determined in laboratory conditions. fertility life table were constructed using age-specific survivorship (lx) and age-specific fecundity (mx) and subsequently analyzed using jackknife method and anova. there were significant differen...

lstituto Beni Culturali (Institute for Cultural Heritage) is the cultural institution of Regione Emilia Romagna. IBC web site [6] has been completely revised in cooperation with Hypermedia Open Center [S], the laboratory of the Electronics and Information Department at Politecnico di Milano. We adopted W2000 model for requirements analysis and for the analysis and organization of the applicatio...

mahi sefid (cyprinidae) is an economically important fish in the south caspian sea. specimens was collected from the lamir river, sefid rud, shir rud and tajan rivers and analyzed at 38 microsatellite dna loci. eight primers out of the thirty analyzed loci were polymorphic in all sampling regions. the highest observed heterozygosity (1) was in locus ca1 in sefid rud and lowest was 0.07 in locus...