The aim of this study is to assess the eutrophication and trophic status based on different indices and also reference threshold values in the Iranian coastal waters of the southern Caspian Sea (ICWSCS). The water samples (three replicates) were collected along four transects (off the coast from Anzali, Tonekabon, Nowshahr and Amirabad) between spring 2013 and winter 2014. The results show mark...

The aim of this study was to assess the eutrophication and trophic status of the Caspian Sea based on different indices and also compare its status with the reference threshold values in the Iranian coastal waters of Caspian Sea (hereafter ICWCS). The water samples (three replicates) were collected along four transects (off the coast from Anzali, Tonekabon, Nowshahr and Amirabad) between spring...

inadequacy of descriptive theories to account for the mechanism of reference led to the emergence of the direct reference theory. this theory, however, has its own problems. if the only component of the meaning of a proper name is its referent, then how is it that the substitution of two co-referent proper names in propositional attitude sentences changes the truth value of the sentence? the pr...