objective(s): to evaluate the in vitro interaction between different extracts of thymbra spicata l. and certain antimicrobial drugs of different mechanisms, including ampicillin, cefotaxime, amikacin and ciprofloxacin. this study was performed against multidrug-resistant strains of staphylococcus aureus and klebsiella pneumoniae. materials and methods: evaluation of antibacterial activity and s...

The powerful illusion of a unified, Cartesian self responsible for intentional action is contrasted with the biologically sounder model of competitive processes that yield an only partially coherent agency, and the existence of the illusion of self is explained as an evolved feature of communicating agents, capable of responding to requests and queries about their own decisions and actions.

Induced hairy roots by Agrobacterium rhizogenes are suitable organs for the production of secondary metabolites, due to the stability and high production of roots without phyhormones in a short time. Fenugreek (Trigonella foenum– graecum L.) is one of the most important medicinal plants with valuable medicinal compounds. For optimizing the hairy root induction of T. foenum-graecum L., six strai...

b ackground : the emergence and rapid spread of metallo-beta-lactamase (mbl) producing acinetobacter spp. are of great concern worldwide due to limited treatment options. epidemiologic studies of the causing genes are important for prevention. methods :   in  this  study,  70  imipenem-resistant  acinetobacter  strains  were isolated from health care associated infections. these isolates were s...

Albino mice of different inbred strains have been exposed to constant fluorescent lighting at an illuminance level of 115-130 ft-c for intervals of 1-6 weeks. Under these conditions the photoreceptors in retinas of albino BALB/cByJ mice rapidly degenerate, whereas the photoreceptors in retinas of albino C57BL/6J-c2J mice are remarkably more resistant to light damage. F1 heterozygotes produced f...

The disk approximation method, Etest (AB Biodisk, Solna, Sweden), and VITEK 2 system (bioMérieux, Marcy l’Etoile, France) were used to study 399 extended-spectrum h-lactamase (ESBL)-producing (115 strains) and non-ESBL-producing (284 strains) clinical isolates of Escherichia coli after recommended procedures. Comparative study of the phenotypic findings yielded data on the sensitivity, specific...

The objective of this work was to characterize reference bacteria strains, belonging the genus Bacillus and species correlated genera, by simplified morphological biochemical methods. characterization is based on aspects colonies, as well cytomorphology species, optical scanning microscopy. For characterization, sensitivity test antimicrobials disk-diffusion performed. Moreover, strains were ch...

Serological response to louse-borne relapsing fever in Ethiopia was determined by immobilization tests using Borrelia recurrentis cultures. Isolates from 26 patients tested with autologous convalescent sera showed from 90 to 100% of the organisms had been immobilized. Sera from thirteen patients were tested with autologous and heterologous strains. Several reacted with the majority and two show...

Studies by R. Lin et al. (J. Bacteriol. 174:1948-1955, 1992) suggested that the Escherichia coli leu operon might be a member of the Lrp regulon. Their results were obtained with a leucine auxotroph; in leucine prototrophs grown in a medium lacking leucine, there was little difference in leu operon expression between lrp(+) and lrp strains. Furthermore, when leuP-lacZ transcriptional fusions th...