نتایج جستجو برای: microbial contamination
تعداد نتایج: 160621 فیلتر نتایج به سال:
To understand how contaminants affect microbial community diversity, heterogeneity, and functional structure, six groundwater monitoring wells from the Field Research Center of the U.S. Department of Energy Environmental Remediation Science Program (ERSP; Oak Ridge, TN), with a wide range of pH, titrate, and heavy metal contamination were investigated. DNA from the groundwater community was ana...
Response of biological communities to environmental stresses is a critical issue in ecology, but how microbial communities shift across heavy metal gradients remain unclear. To explore the microbial response to heavy metal contamination (e.g., Cr, Mn, Zn), the composition, structure and functional potential of sedimentary microbial community were investigated by sequencing of 16S rRNA gene ampl...
Pharmaceutical products prepared in pharmacies have the potential of contamination with different microorganisms. This is in part due to the unhygienic environment and also lack of a suitable preservative system. In this study, microbial quality of Eucerin-Urea ointments prepared at different pharmacies in Tehran, at the point of sale and also after two weeks storage at room temperature was exa...
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