the formation of charge-transfer complexation between dibenzo-15-crown-5 (db15c5) and benzo-12-crown-4 (b12c4) (donor) and iodine is investigated spectrophotometrically in three chlorinated solvents,chloroform, dichloromethane (dcm) and 1,2-dichloroethane (dce) solution at 25°c. the change in polarityof the solvent also doesn’t affect the stoichiometry of the complexes. values of formation cons...

background: il-10 is an anti-inflammatory cytokine which is involved in tumorigenesis. over production of il-10 and elevated number of il-10 generating mononuclear cells in breast tumor tissue has already been shown. objective: to determine the association of il-10 promoter polymorphisms with increased risk of breast cancer and its association with breast cancer prognostic factors. methods: per...

Modern imaging techniques enable researchers to observe drug actions and consequences as they occur and persist in the brains of abusing and addicted individuals. This article presents the five most commonly used techniques, explains how each produces images, and describes how researchers interpret them. The authors give examples of key findings illustrating how each technique has extended and ...

background: the cuprizone multiple sclerosis (ms) animal model is characteristic for toxic demyelination and represents a reversible demyelination and remyelination system. it has been shown that green tea epigallocatechin-3-gallate (egcg) might be effective in improving the symptoms and pathological conditions associated with autoimmune inflammatory diseases in several animal models. objective...

i n m a n u f a c t u r i n g a c t i v i t i e s, i s s u e s s u c h a s t h e i n t e n s i t y o f c o m p e t i t i o n, r i s i n g a n d c h a n g i n g c u s t o m e r e x p e c t a t i o n s, a n d e v e r-i n c r e a s i n g t e c h n o l o g i c a l d e v e l o p m e n t s, i n t e n s i f y m a n u f a c t u r e r c o m m i t m e n t t o e l i m i n a t e d e f e c t s i n i t s p r...

condensation of glyoxal, formaldehyde and anilines lead to the formation of 2,4,6,8- tetraphenyl and substituted phenyl 2,4,6,8-tetraazabicyclo [3.3.0] octanes. the reactions are sensitive to ph and temperature. ortho derivatives of anilines do not participate in this condensation. x-ray structural determination reveals a cis-dienvelope geometery about the two fused rings.

plant growth promoting rhizobacteria and arbuscular mycorrhizal fungi can inhanced plant growth by increasing nutrient uptake. in order to investigate the effect of pgpr and amf on some morphological parameters, macro (nitrogen, phosphorus, potassium, calcium and magnesium) and micro (iron, zinc and copper) nutrients uptake, percentage of root colonization and some morphological factors of pepp...

s e l e c t i o n o f a p p r o p r i a t e g r o u n d m o t i o n i s a k e y e l e m e n t w i t h i n a n y s e i s m i c a s s e s s m e n t o f s t r u c t u r e s. m a n y m e t h o d o l o g i e s h a v e b e e n d e v e l o p e d i n o r d e r t o s e l e c t a n d s c a l e g r o u n d m o t i o n r e c o r d s f o r t h e p u r p o s e o f r e s p o n s e h i s t o r y a n a l y s i ...

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...

climate change impacts on precipitation and temperature world-wide are not yet well understood (especially for precipitation), due to their complexity and regional variability. in this study in order to explicit the impact of climate change on precipitation and temperature in iran, 15 aogcm whose greenhouse gases scenarios ran under a2, a1b and b1 were used. monthly precipitation and temperatur...