the quality of the river water is assessed in different months in different stations to evaluate the change in the quality in re1ation with the various point sources along the river. thirteen parameters were measured in the samples manually taken from three meters off shore in 20 cm. depth in four points representing the quality in four reaches under consideration. the results revealed that nat...

The diurnal rhythm in the urinary excretion of 17-ketosteroids and neutral reducing lipids has been reported by Pincus. 1) On the other hand the diurnal variation of circulating eosinophils in normal subjects has been studied by Rud,2) Bonner3) and others.4) 5) The characteristic feature in diurnal rhythm of urinary steroids is an increase in the morning especially after awakening. Meanwhile th...

The electrocatalytic ability of the iron-substituted crown-type polyoxometalate (POM) Li4K16[P8W48O184Fe16(OH)28(H2O)4]66H2O2KCl (P8W48Fe16) towards the reduction of both nitrite and hydrogen peroxide reduction has been studied in both the solution and immobilized states for the POM. P8W48Fe16 was surface immobilised onto carbon electrode surfaces through employment of the layer-bylayer techn...

W artykule zaproponowano rozwiązanie aktualnego problemu naukowego polegającego na opracowaniu geometrycznej metody prognozowania wskaźników jakości złóż rud żelaza, z zastosowaniem modelu matematycznego wielowymiarowego losowego pola geochemicznego, realizowanego wykorzystaniem samoorganizujących metod predykcyjnych. Autorzy opracowują wielowymiarowy algorytm predykcji heurystycznej, wykorzyst...

relations between the third world countries in different parts of asia and africa during the 19th and 20th centuries, to a great extent, were influenced by the presence and policies of colonial powers. thus, for a better understanding of roots of disputes and issues existing between these countries concerning frontiers, disputed islands, political and prejudicial tensions, we need to study past...

In this study, the zonality method has been used to separate geochemical anomalies and calculate erosional levels in regional scale for porphyry-Cu deposit, Abrisham-Rud (Semnan province, East of Iran). maps multiplicative haloes, co-existence both supra-ore elements sub-ore local maxima implied blind mineralization northwest study area. Moreover, considering calculated indices two previously p...

  Various parasite species were found in Carassius carassius including Diplostomum spathaceum, Dactylogyrus sp.,Gyrodactylus sp. Ichthyophthirius multifiliis and Trichodinia sp . They were found in four rivers in West Azerbaijan Province (North-Western Iran) . A total of 207 live Carassius carassius from four rivers including Aras (72) Zariyneh (42) Nazlo (58) and Barandoz (35) were studied. Pa...