in order to compare sampling efficiencies of total and inhalable dust methods, three airborne dust sampling systems , 7-hole sampler , close and open face filter cassette were compared side-by-side , as stationary and for the personal samplers , in a wood working industry to evaluate their relative efficiency. a total of 162 samples were collected. the study of particle size distribution by cas...

conclusions based on the present study, it can be concluded that oral administration of silver nanoparticles for 28 days had no effect on rat liver function, but probably led to early apoptotic stages. materials and methods in this experimental study, 40 adult male sprague-dawley rats were divided into five groups. in the four experimental groups, nanosilver particles were given orally for 28 c...

background: pre-eclampsia (pe) is one of the most important and life-threatening pregnancy disorders that affect at least 3-5% of all pregnancies. imbalance in helper t cell functions may play a role in predisposing to pe or severity of the disease. elevated frequencies of th17 cells in the peripheral blood of pe patients have been reported. several single nucleotide polymorphisms (snp) within ...

objectives in this study, we reported the identification of a cdna sequence encoding cysteine-free antimicrobial peptides isolated from venomous glands of this species. materials and methods total rna was extracted from the iranian mesobuthus eupeus venom glands, and cdna was synthesized by using the modified oligo (dt). the cdna was used as the template for applying semi-nested rt- pcr techniq...

background: an amount of artificial radionuclide has been released into the environment as fallout, resulting from atmospheric nuclear weapon tests, nuclear accidents such as chernobyl and together with air currents have polluted the world. materials and methods: 37 surface soil samples of tehran province were collected in the period between june and september 2008, by implementing methods and ...

1,5-benzodiazepines are regarded as one of the most important classes of heterocyclic compounds as privileged structures and have vast range of applications in the field of medicine and chemistry. they are therefore attractive synthetic targets for organic and medicinal chemist. the current review article mainly covers the multicomponent green chemistry approaches for the synthesis of 1,5-benzo...

objective(s) the aim of this study was to search for new antiviral agents from herbal medicines. ethanol extracts of c. semipervirens, c. semipervirens var. horizontalis and c. semipervirens cv. cereiformis were used in experiments to test their influence on herpes viruses (hsv-1). materials and methods hela cells monolayers were infected with herpes viruses (hsv-1). antiviral activity of the p...