nature has great importance on prehistoric human life and attention to the environment and discovering mysteries of life which influence their life, always have been considered as concerns of prehistoric people. the elements such as water, wind and earth for primary human were important elements because of no awareness of environment in primary stages of sedentary life. human beings always trie...

OBJECTIVES To compare different mef(A) elements of Streptococcus pyogenes for a possible chimeric genetic nature, i.e. a transposon inserted into a prophage. METHODS Eleven S. pyogenes isolates with efflux-mediated erythromycin resistance were used. The isolates were typed using several genotypic approaches. Gene detection was performed by PCR using specific primer pairs. The mef(A) elements ...

Objectives: Bacteroides fragilis, a Gram-negative anaerobic bacterium, is alternately a gut commensal or virulent pathogen and is an important reservoir for horizontal gene transfer (HGT) of bacterial resistance and virulence genes in the human gastrointestinal tract. We identified a unique conjugative transposon (CTn) in a multidrug resistant clinical isolate of B. fragilis (BF-HMW615); we nam...

jalilahangar nezhad, is a poet from gilan gharb city, that hispoetry is a reflection of the environment and themountainous and beautiful nature area.poet in his book used elements of nature,such as spring, birds and…. he has used colors well, especially “kāl” (pale green) in his poetry. personification, combining the senses and repetition in his poetry hasconsiderable frequency. he insists to u...

health reform is the outcome of dispersed policy initiatives in different sectors, at different levels and across time. policy work which can drive coherent health reform needs to operate across the governance structures as well as the institutions that comprise healthcare systems. building policy capacity to support health reform calls for clarity regarding the nature of such policy work and t...

conclusions the results of this study illustrated the persistence of resistant bacteria in the environment, and highlight the reservoir of resistance, associated with use of antibiotics, as feed additive in poultry production. results out of the 55 mrsa strains, all isolates were at least resistant to penicillin, 58% showed resistance to erythromycin and 55% were resistant to ciprofloxacin. on ...

background: leishmaniasis is a parasitic disease caused by different species of leishmania parasites with a wide range of clinical manifestations . antimonial compounds such as meglumine antimoniate (glucantime) are the first line drugs for the treatment of leishmaniasis. however, according to reports of the drug resistance of parasites, the efficacy of antimonial compounds is low. the atp-bind...