نتایج جستجو برای: hg
تعداد نتایج: 30963 فیلتر نتایج به سال:
exposure to mercury (hg) as a heavy metal can cause health effects. the objective of this study was to assess occupational exposure to hg in a chlor-alkali petrochemical industry in iran by determining of hg concentrations in air, blood and urine samples.the study was performed on 50 exposed subjects and 50 unexposed controls. air samples were collected in the breathing zone of exposed subjects...
نقد کهن الگویی از رویکردهای جدید نقد ادبی است که بر اساس آرای روان شناس معروف سوئیسی کارل گوستاو یونگ بنا شده است. در این نوع نقد به مطالعه و بررسی کهن الگوهای اثر می پردازند و نشان می دهند که چگونه ذهن شاعر و نویسنده، این آرکی تایپ ها را که محصول تجربه های مکرر بشر است و در ناخودآگاه جمعی بشر به ودیعه گذاشته شده جذب کرده و آن ها را به شیوه ای سمبلیک و تمثیلی به نمایش گذاشته است. هدف این رساله...
In the present study, Mercury (Hg) accumulation in different tissues of Yellowfin seabream under different Hg concentrations in the medium were investigated. For this, PurPuse 45 fish specimen of the same size (19.2±1.8cm and 134.0±36.1 g) were caught from Musa Estuary, in northwest of the Persian Gulf and transferred to the laboratory. Fish were divided into five different groups of 9 fish ...
mercury is one of the most toxic heavy metals present in aquatic systems, exhibiting a complex behaviour in the environment, where it may persist for decades after the source of pollution is stopped. hence, it is important develop new techniques for its removal from the aquatic systems. in this context, a particularly promising line of research is the use of new materials capable of up taking m...
Sewage sludge application on farmland as fertilizer is commonly practiced in many countries. However, high concentration of heavy metals like mercury (Hg) in sludge can cause pollution of soil, plant and the human food chain. In order to examine the risk of Hg transfer into plants a five year field experiment was conducted in which we investigated uptake of Hg from a sludge-amended soil by corn...
Dibutyl-Disulfide Montmorillonite (DD-MMT) was synthesized successfully and found to bean excellent adsorbent for Hg(II) removal. The fourier transform infrared spectroscopy (FTIR),x-ray diffraction spectrum (XRD) and scanning electron microscopy (SEM) were used tocharacterize properties of the absorbent. The effects of several parameters such as solutionpH, adsorbent dose, contact time and the...
human granulocyte-colony stimulating factor (hg-csf) cdna was expressed in the methylotrophic yeast pichia pastoris under the control of the alcohol oxidase (aox1) promoter. an expression vector for hg-csf secretion was constructed using vector ppic9. higher levels of hg-csf was obtained using a p. pastoris mut+ (methanol utilization fast) phenotype. the effects of environmental factors such as...
Background and Aim: Several factors, including abrupt rise of HCG or female sex hormone has been suggested in the development of Hyperemesis gravidarum (HG). However some authors believe that infectious agents, especially Helicobacter pylori (H.pylori) are responsible for HG. In this study, frequency of H.Pylori antibody was compared between HG and non-HG pregnant women.Patients and Methods...
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