Generation of new clones of multidrug resistant infectious foci of environmental, zoonotic and reverse zoonotic Enterococcus faecalis & faecium strains from cases of mastitis in cows privileged in Baghdad ecosystem reveal unsafe tricks. Medically important plants Blackcurrant, London Plane and Pine Buds are widely used for resolving these public health threats and hazards as powerful antimicrobial preparations. Totally sixty pooled milk samples were collected from apparently healthy (30 units) and infected (30 units) Cows from different regions of Abu-Ghraib during March until July (2019). Integrated units were checked by California mastitis test and a designed scheme was dependent for recovery of pathogenic Enterococci. Gram staining and catalase was proceeds. VITEK 2 (bioMérieux) technology ribbon biochemical identification system was used to segregate faecalis strain from faecium one. Group D Enterococci were confirmed by Lancefield’s serological grouping. Biofilm-formation assay was followed as an important biomarker clue for antibiotics resistance barriers. Modified Kirby-Bauer disc diffusion assay using Muller-Hinton agar was dependent for checking susceptibility of recovered strains to selected antibiotics Penicillin, Methicillin, Vancomycin, Amikacin & Ciprofloxacin. Watery & alcoholic extracts of selected plants were prepared according to recommendations of Codex international standards of Association of Official Agricultural Chemists (AOAC) & modified disc inhibition assay with determination of minimum inhibitory concentration (MIC titer) & minimum bactericidal concentration (MBC titer) were proceeds. Chi-square analysis via SPSS software was dependent. Qualified data descriptions regarding recovery of seventeen (28.33%) strains out of sixty samples in which, ten (16.66%) strains were recovered from mastitic milk units & seven (11.66%) strains were recovered from apparently abnormal milk units. Ten (16.66%) strains were confirmed as E. faecalis: Seven (11.66%) clones from mastitic milk units versus three (5%) clones from apparently abnormal milk units. Seven (11.66%) strains were confirmed as E. faecium: Five (8.33%) clones from mastitic milk units versus two (3.33%) clone from apparently abnormal milk units. All recovered strains were Gram-positive purple beaded cocci, Catalase negative, Lancefield group D & biofilm-producing. All strains were very resistant to all selected antibiotics. Diverse efficacy index was present among selected plants extracts in which, active ingredients index revealed powerful inhibitory level & titer for London Plane followed by Pine Buds then Blackcurrant against these powerful multidrug resistant recovered clones. In conclusion, frequency & distribution of pathogenic multidrug resistant foodborne Enterococci in our ecosystem represent privileged hazard chain of contamination that can be reduced or overcome by natural antimicrobial replacements like these extracts.
Mass transfer has been studied at rotating cylinder electrodes fabricated with spiral-wound woven-wire meshes using reduction of copper as a test reaction. The experimental data were correlated by an empirical expression between the Sherwood number and the Reynolds number, both regarding the hydraulic diameter as a characteristic length. It was found that the Sherwood number was dependent upon the Reynolds number to the power of 0.521. An enhancement factor was adopted to compare the efficiency of the new rotating cylinder electrode with previous three-dimensional rotating cylinder electrodes. The results showed that the new type has a mass-transfer enhancement factor 2.3 times higher than those obtained with smooth rotating cylinder electr
... Show MoreIn this study, a theoretical scenario has been used to calculate the electronic current in sensitizer N3 molecule contact to TiO2 semiconductor for electrons in functional solar cells. It is known to play an important role on the compute the eficiency of solar cell. Some parameters of electronic current such as the transition energy, driving force energy, barrier height coupling overlapping values are determined. Transition energy is a necessary parameter to calculate the electronic current in solar cell with using wide polarity solvents Acetic acid, 2-Methoxyethanol, 1-Butanol, Methyl alcohol, chloroform, N,N-Dimethylacetamide and Ethyl alcohol via the quantum donor-acceptor system. Here, we show the results of transition energy can be var
... Show MoreThis systematic review aimed to investigate the relation between orthodontic treatment (OT) and the incidence of the gingival black triangle (GBT) after completing treatment with a fixed orthodontic appliance, as well as the associated risk factors and the level of alveolar bone. Electronic and hand searches were conducted in three electronic databases for relevant articles published up to March 2022. Retrieved articles went through a two-step screening procedure, and the risk of bias (RoB) was assessed by the Joanna Briggs Institute checklists. The incidence of GBT after OT was set as the primary outcome, while the secondary outcomes were the risk factors associated with GBT and alveolar bone loss following OT. Out of 421 papers, 5
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