ABSTRACT Many studies have determined the concentration of trace elements in river sediments in Brazil.Notwithstanding, mercury assessments are scarce, especially because of exclusive extraction techniques and expensive analysis techniques.Still, this element is known for its toxicity, persistence, and bioaccumulation, making its presence in the en
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A cross- sectional survey of utilization of child immunization and family planning services was carried out in a systematic random sample of 100 families from a Drum Stick Bag Muslim slum community of Calcutta.15.6% of children (1-4 years) were Cordless Blowers fully immunized (DPT, OPV & BCG).Couple protection rate was 28.4%.But
Existing methods for calculating the ultimate support pressure of tunnel faces do not consider the control of seepage flow.Therefore, a model for calculating the ultimate support pressure under seepage conditions was established based on a two-dimensional water head distribution model and the upper bound theorem of limit analysis.The reliability of