نتایج جستجو برای: hg
تعداد نتایج: 30963 فیلتر نتایج به سال:
The Cambridge Structural Database has been surveyed for crystals featuring organo-Hg···S secondary-bonding interactions within supramolecular aggregates. Nearly 50% of where Hg···S could potentially form, featured contacts zero- or one-dimensional assemblies with only a few examples two-dimensional arrays interactions. This high propensity contact formation reflects the inherent thiophilic natu...
this study has paied to investigation and comparison of content hg in imported rice from indian country and cultivated rice (oryza sativa( in borojerd and isfehan provinces in iran. 30 types of indian imported rice and 5 type iranian rice available in market of iran in 4 repeat from every type. the first step, grains of raw rice were digested by acid digestion method and then were analyzed for ...
background: dental clinics are known to be one of the largest users of toxic inorganic mercury. it is well documented that dentists and dental assistants who work with amalgam are chronically exposed to mercury vapor. this study investigates exposure to mercury vapor in a dental clinic. methods: gbc cold vapor atomic absorption spectrometry (aas), using sodium borohydride as the reducing agent,...
mercury is a dangerous and an extremely toxic element, which can transfer to the food chain.presence of this element in the atmosphere particularly during the rainy seasons cause soil and environmental pollution, therefore this research will evaluate the transformation of mercury vapor from the atmosphere through precipitation into the soil. in the present study, mercury concentrations were det...
Background and Objective: Present study aimed to investigate response of metallothionein (MT) in oyster Crassostrea sp. to the experimental concentrations of Hg and Cd in order to assess the possibility of MT usage as a biomarker of Hg and Cd contamination in this mollusk. Materials and Methods: Oysters were collected from docks of Imam Khomeini Port. After seven days acclimation period in labo...
چکیده مقدمه: هیپرامزیس گراویداروم (hg) انتهای شدید طیف تهوع و استفراغ حاملگی و بروز آن از 2-3/0 درصد متفاوت است. عوامل زیادی با hg ارتباط دارد که یکی از آنها جنس جنین است به طوری که در برخی بررسی ها دیده شده که شدت hg با جنس جنین دختر ارتباط دارد. هدف: بررسی ارتباط جنس جنین و شدت hg. مواد و روش ها: در یک مطالعه توصیفی- تحلیلی پرونده پزشکی تمام زنان بارداری که طی سال های 76 تا 86 به بیمارستان ال...
background: the present study was carried out to track and calculate biomagnification factor (bmf) of total mercury (t-hg) between two different trophic levels (i.e., plankton and a planktivorous fish) in a fresh water grazing food chain. methods: experimental organisms were planktonic biomass and silver carp (hypophthalmichthys molitrix) as a planktivorous fish. silver carp samples were obtain...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید