phytoplankton taxa composition of the caspian sea were evaluated by using samples collected at 12 stations along the iranian coast of the caspian sea between 1996 and 2010. this study identified 158 phytoplankton species consisted of diatoms (70 species), dinoflagellates (23 species), chlorophytes (29 species), cyanophytes (31 species), and euglenoids (5 species). the dominant species were the ...

In this study, the removal of cadmium (Cd) by free-living Oscillatoria sp. was studied. Our results showed that maximal Cd efficiency (~60%) cyanobacterial culture achieved within 12–24 h in presence 5.0 or 25.0 mg/L Cd. The mechanisms underlying phenomenon were explored elemental analysis and FTIR-ATR spectroscopy. It found metal adsorption negatively charged functional groups biomass main mec...

The effect of different concentration Kerosene had been examined upon Oscillatoria splendida, optical density depended as measure for growth well chlorophyll a concentration, Phycocyanin pigment and protein an indicator effects, in addition to morphological changes. the control sample was (0.34), while it (0.23) at 0.25% kerosene It is noted slowing with high treatment, 0.5% peak (0.08), resist...

transplanted and hemodialysis patients are frequently affected by parasitic diseases such as cryptosporidiosis. cryptosporidium is a parasite causing self-limited diarrhea and enteritis in healthy individuals. the presence of cryptosporidium infection was studied in three groups including 87 renal transplant patients, 103 hemodialysis patients, and 60 healthy individuals as the control group. t...

definitive diagnosis of brucellosis is made by isolation of the causative agents, which is a timeconsumingprocedure. to evaluate the efficacy of dot-elisa for detecting brucellae in clinical samples, 94different specimens taken from animal origin were cultured on brucella selective culture media and colonieswere identified biochemically. the specimens were also examined after centrifugation by ...

conclusions current study revealed that a. flavus was the most common isolated pathogen. moreover, a. fumigatus was the second common isolated pathogen in patients with ifs. additionally, the hospital construction was an important environmental risk factor for acquisition of infection in patients with hematological malignancy. the most common season for ifs incidence was summer. additionally, t...