نتایج جستجو برای: microbial evaluation
تعداد نتایج: 932171 فیلتر نتایج به سال:
Abstract Background and Objective: Transmission of pathogens by cosmetics is one of the major health complications. Direct contact with contaminated non-standard cosmetics can have irreparable side effects for the consumers. Thus, the evaluation of microbial contamination in cosmetic products is important. The aim of this study was to assess the microbiological contamination of one of freque...
Introduction & Objective: The nosocomial infection is great medical problem and caused infectious disease, increased hospitalization time, pert of time, energy, and economical source and death. This research for evaluation microbial contamination level of different hospital instrument In medical training center of Hajar shahrekord. Materials & Methods: This is a descriptive cross secti...
the major aim of this study was to investigate the relationship between social and cultural capital and efl students’ critical thinking skills. this study takes this relationship in to account to see if people with different sociocultural status are different regarding their critical thinking skills. to this end, 160 university students majoring in english language and literature, english trans...
BACKGROUND The present study assessed microbial contamination in Italian dental surgeries. METHODS An evaluation of water, air and surface microbial contamination in 102 dental units was carried out in eight Italian cities. RESULTS The findings showed water microbial contamination in all the dental surgeries; the proportion of water samples with microbial levels above those recommended decr...
An adenosine-5’-triphosphate (ATP) bioluminescence method was developed for detecting microbial activity in indoor air. This method was compared with the traditional method of collecting, culturing and counting CFUs. A comparison of the results showed that ATP bioluminescence, expressed as RLUs, was moderately correlated with the entire set of CFU counts (r = 0.607), and that the correlation im...
Potassium is the most abundant nutrition element in the surface soil but most of the potassium is unavailable to the plants. The present study was conducted with the aim of isolation of potassium solubilizing bacteria from rhizosphere soil and evaluation of quantitative ability of released potassium from different sources of silicate by strains. For this propose, laboratory and greenhouse evalu...
BACKGROUND Biohydrogen production through dark fermentation using organic waste as a substrate has gained increasing attention in recent years, mostly because of the economic advantages of coupling renewable, clean energy production with biological waste treatment. An ideal approach is the use of selected microbial inocula that are able to degrade complex organic substrates with simultaneous bi...
BACKGROUND Only recently has the environment been clearly implicated in the risk of antibiotic resistance to clinical outcome, but to date there have been few documented approaches to formally assess these risks. OBJECTIVE We examined possible approaches and sought to identify research needs to enable human health risk assessments (HHRA) that focus on the role of the environment in the failur...
A synthesis of carolacton, a myxobacterial natural product that has profound effects on Streptococcus mutans biofilms, is reported. The synthesis proceeds via a longest linear sequence of 14 steps from an Evans β-ketoimide and enabled preliminary evaluations of the effects of late-stage intermediates on S. mutans biofilms. These studies suggest that further investigations into carolacton's stru...
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