tris(3-bromo-acetylacetonato) chromium(iii) as an inert and very stable complex with a good leaving group was synthesized using as-prepared cr(acetylacetonate)3. highly ordered nanoporous silica (lus-1), with some great features, was functionalized with 3-aminopropyltriethoxysilane. then the as-prepared product was modified with tris(3-bromo-acetylacetonato) chromium(iii) under mild reaction co...

a highly efficient and simple method for the preparation of α,α´-bis(arylidene)cycloalkanones under solvent-free conditions has been developed. the crossed-aldol condensation of cycloalkanones (1 eq.) with arylaldehydes (2 eq.) in the presence of 2.5 mol% of ionic liquid 1,3-disulfonic acid imidazolium hydrogen sulfate {[dsim]hso4} afforded the title compounds in high yields and short reaction ...

the research has been done for assessment of effects of different concentrations of indole-3-butyric acid (iba) on rhizogenesis of scions of c. phlomidis in 2010.  the research has been done on randomized complete-blocks for five replications and three treatments with zero, 2000ppm and 3000pmm concentration. different characters such as number of root of each scion, length of root, length of ne...

the copper(ii) complex [cu(pic)2]·2h2o was synthesized with 2-picolinic acid (hpic) and copper acetate as reactants by room temperature solid-solid reaction. the composition and structure of the complex was characterized by elemental analyses, single crystal x-ray diffraction, x-ray powder diffraction, ft-ir spectroscopy and thermogravimetry-differential scanning calorimetry. the crystal struct...

the use of appropriate level of theories for studying weak van der waal interactions such as 8-8stacking interactions of aromatic molecules has been an important aspect, since the high levelmethods have limitations for application to large molecules. the differences in the stacking energiesof various aromatic molecular structures are found significant. it is also very important for identifyingt...

zagros forests are a treasure of various valuable species of oak in iran and the world. long-term misuse in the past has caused severe degradation in the zagros forests. recently these forests have become national but misuses by local people to make living because of poverty and unemployment are continued. in order to reduce degradation and improve sustainability, ecological capability for exte...

soybean isoflavone genistein has multiple anticancer properties and its pro-apoptotic and anti-proliferative effects have been studied in different cancer cells. however, the mechanisms of action of genistein and its molecular targets on human colon cells have not been fully elucidated. therefore, caspase-3 and p38 mitogen-activated protein kinase (p38 mapk) as the main therapeutic targets were...

biodegradable polymeric nanoparticles (nps) have been intensively studied as a possible way to enhance anti-tumor efficacy while reducing side effects. icd-85, derived from the venom of two separate species of venomous animals, has been shown to exhibit anti-cancer activity. in this report polymer based sodium alginate nanoparticles of icd-85 was used to enhance its therapeutic effects and redu...

We s h o w that determining whether two i n tegers are coprime is in NC. This can be seen as evidence that other integer GCD-related problems might b e i n N C .

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...