in calcareous soils with high calcium carbonate contents and ph, the growth and development of plant might undergo nutritional disorders. the process of biological nitrogen fixation in legumes cultivated and plant growth in these soils could be limite. the use of acid-producing materials like sulfur and a reduction in soil ph improves plant growth and increase the biological nitrogen fixation. ...

Background: Dried fruit is one of the main sources of sulphur dioxide (SO2) exposure. The major goal of the current study was to determine SO2 concentration in some widely consumed dried fruits in Hamadan, Iran. In addition, an estimate of sulphite intake was made through the aforementioned dried fruit. Methods: Totally, 126 dried fruit samples were randomly collected from local market in Hama...

the aim of this study was to compare the total protein levels in serum of veteran exposure to sulfur mustard (sm) which was used in the iran-iraq war. in this study, 35 patients exposed to mustard gas (case group) and 35 healthy subjects (control group) were evaluated. the total protein concentration was measured by bradford method. the average amount of protein in serum exposure to sulfur must...

In this research, the effects of important parameters, including the molar ratio of acetic acid to sulfur(S) , sonication time, temperature, and hydrogen the molar ratio of peroxide to sulfur on the performance of ultrasound-assisted oxidative desulfurization were studied using the response surface method (RSM). To this end, a model fuel containing n-decane and dibenzothiophene at a concentrati...

Through a combination of selective extractions and molecular characterization techniques including Isoelectric Focusing Chromatography Electrospray Ionization Fourier-Transform Ion Cyclotron Resonance Mass spectrometry, structures diatom ( Phaeodactylum tricornutum ) coccolithophore Emiliania huxleyi )-associated biopolymers that are responsible for the distinct partitioning behavior between 21...

background : the aim of this study was to investigate the association between the two most commonly used generic and disease specific health-related quality of life (hrqol) measures in patients with chronic lung disease due to sm: medical outcomes study short form 36-item (sf-36) and st george's respiratory questionnaire (sgrq). methods : this is a secondary analysis of iranian chemical warfare...

The sulfur regulatory circuit of the filamentous fungus, Neurospora crassa, consists of a set of unlinked structural genes which encode sulfur catabolic and two major regulatory genes which govern their expression. The cys-3 regulatory gene encode a transacting regulatory protein which activates the expression of cys-14 and ars, whereas the other regulatory genes Scon-l and Scon-2 appear to...

the performance of msu-s and its forms modified with phosphotungstic acid (hpw) and nickel (ni) for the desulfurization and denitrogenation of model diesel fuel were studied. according to the results of the characteristic tests (n2 adsorption-desorption, xrd, sem, and nh3-tpd), heteropoly acid incorporation causes higher acidity along with a negligible loss of structural aspects, while ni impre...