Search results for "dixi"
showing 10 items of 22 documents
Plasmid-mediated QnrS2 determinant from a clinical Aeromonas veronii isolate.
2008
The main objective of this study was to determine the prevalence of the Qnr determinants in clinical and environmental Aeromonas spp. A total of 52 Aeromonas sp. isolates identified by biochemical methods (5), 25 isolated from natural waters (1) and 27 isolated from clinical samples from hospitals in Valencia, Spain, were tested for quinolone resistance by the disk diffusion method (4) (nalidixic acid, 30 μg; oxolinic acid, 2 μg; flumequine, 30 μg; ciprofloxacin, 5 μg; and levofloxacin, 5 μg). Among the studied isolates, 27 showed resistance to nalidixic acid and susceptibility to ciprofloxacin, 24 isolates were susceptible to both nalidixic acid and ciprofloxacin, and only 1, the A. veroni…
Listeria phage and phage tail induction triggered by components of bacterial-growth media (phosphate, LiCl, nalidixic acid and acriflavine)
2015
ABSTRACT The detection of Listeria monocytogenes from food is currently carried out using a double enrichment. For the ISO methodology, this double enrichment is performed using half-Fraser and Fraser broths, in which the overgrowth of L. innocua can occur in samples where both species are present. In this study, we analyzed the induction of phages and phage tails of Listeria spp. in these media and in two brain heart infusion (BHI) broths (BHIM [bioMérieux] and BHIK [Biokar]) to identify putative effectors. It appears that Na 2 HPO 4 at concentrations ranging from 1 to 40 g/liter with an initial pH of 7.5 can induce phage or phage tail production of Listeria spp., especially with 10 g/lite…
ComparativeIn Vitroevaluation of cumulative release of the urinary antiseptics Nalidixic acid, Pipemidic acid, Cinoxacin, and norfloxacin from white …
1994
AbstractThe in vitro diffusion of nalidixic acid (1), pipemidic acid (2), cinoxacin (3), and norfloxacin (4) was studied. The transfer rate constants (kd) from simulated gastro-intestinal juices to simulated plasma, throughout artificial wall lipid membranes, were defined. The kd values suggested that the four drugs are absorbed both in gastric and intestinal environments in similar amounts. To obtain lack of gastric unwanted effects white beeswax microspheres containing 1, 2, 3, and 4 were investigated as a vehicle for the drug intestinal release; they were prepared by the meltable dispersion process using wetting agents. Discrete, reproducible free flowing microspheres were obtained. The …
Pathogenic microorganisms carried by migratorybirds passing through the territory of the island ofUstica, Sicily (Italy)
2011
Several studies have shown that migratory birds play an important role in the ecology, circulation and dissemination of pathogenic organisms. In October 2006, a health status evaluation was performed on a large population of migratory birds passing through the territory of Ustica (Italy), an island located on the migration route of many species of birds to Africa, and various laboratory tests were conducted. In total, 218 faecal swabs and the internal organs of 21 subjects found dead in nets were collected for bacteriological and virological examination, including avian influenza and Newcastle disease. In addition, 19 pooled fresh faecal samples were collected for mycological examination. T…
Serotypes, Antibiotic Resistance, and Class 1 Integrons in Salmonella Isolates from Pediatric Cases of Enteritis in Tehran, Iran
2011
The present study was conducted to investigate serotype distribution, antimicrobial resistance patterns, carriage of class 1 integron, and clonality of Salmonella strains isolated from patients aged 0-12 years in Tehran, Iran, during 2007-2008. A total of 139 Salmonella isolates were studied. Salmonella serotypes Enteritidis, Infantis, and Typhimurium included 84.9% of isolates, Enteritidis accounting for 41.7%. The most prevalent resistances were to doxycycline (64.7%), nalidixic acid (61.2%), tetracycline (51.8%), and streptomycin (42.8%). Fifty-three (38.1%) isolates contained class 1 integron. Eight different gene cassettes were identified, aadA1 being the most frequently encountered. P…
Drug resistances in salmonella isolates from animal foods, Italy 1998–2000
2002
We investigated the distribution of serotypes and patterns of drug resistance of 206 strains of salmonella isolated in southern Italy in the years 1998–2000 from raw food of animal origin, faeces of food animals and animal feed. To improve knowledge of mobile genetic elements carrying the resistance genes, some molecular features were also investigated within isolates resistant to three or more antibiotics. A high proportion of isolates, 52.2% and 37.7%, respectively, belonging to both Typhimurium and other serotypes of animal origin, proved to be multidrug resistant. The DT104 complex specific multidrug pattern of resistance was quite infrequent among isolates other than Typhimurium, but r…
La variable 'sexe' en les llengües del món
2013
El sexe és una de les variables més freqüents en els diferents recursos lingüístics per a identificar els interlocutors en les llengües del món. El fet que s'hagi confós el gènere gramatical (procediment de classificació dels substantius) amb el sexe, i la consegüent inclusió dels elements identificadors en la categoria «gènere», ha provocat una certa confusió sobre la naturalesa d'aquests fenòmens. En l'article es proposa una classificació en quatre tipus dels mecanismes per a la identificació dels interlocutors en la llengua, per bé que tots poden ser entesos com a part d'un continu que va des dels elements gramaticals obligatoris fins als lectes específics per a homes i dones. Entremig, …
Integron and genotype patterns of quinolones-resistant uropathogenic Escherichia coli
2011
Uropathogenic Escherichia coli are the most common cause of urinary tract infections,and quinolones-resistant strains cause growing concern in developing countries. This study provides relevant data in relation to the molecular epidemiology of these isolateswith respect to the distribution of integron among them and in doing so, to control the infections and adopt efficient strategies. This study was performed on 96 strains of E. coliisolated from patients with community acquired urinary tract infections in Jahrom, Iran. Having determined the antibiotic susceptibility patterns, isolates were resistant to quinolones (Ciprofloxacin, Norfloxacin and Nalidixic acid) screened for integron classe…
Gestió universitària i estils discursius
2008
This article presents some of the results from a broader research study of management styles within the Catalan university world. Two management styles are defined (the collegial and the managerial) and a relationship is established between some of the characteristics of these styles, some discursive features and the gender of the managers. Specifically, an analysis is made of the linguistic markers pertaining to the deictic modality in the discourse that constructs the identity of the analysed individuals. The markers of the deictic modality also make it possible to identity certain characteristic traits of men and women. Methodologically speaking, it could be said that the analysis of the…
Les expressions demostratives no situacionals i l'estat cognitiu dels seus referents
2014
Resum: Aquest treball s’ocupa dels demostratius no situacionals com a unitats díctiques textuals i s’hi discuteix el grau d’activació o estat cognitiu dels seus referents des del marc teòric de la jerarquia de topicalitat de Gundel, Hedberg & Zacharski (1993) i de la teoria del centrat.Per determinar l’estat cognitiu dels referents dels demostratius, es parteix d’un corpus constituït per la narració Peter Pan de J. M. Barrie i dues traduccions deltext, al català i a l’espanyol. En primer lloc, es determina la naturalesa situacional o no situacional dels demostratius this/these/thus i that/those, i dels seus equivalents en les dues llengües meta. En segon lloc, es discuteix l’estat cogni…