the discovery of mesoporous molecular sieves, mcm-41, which possesses a regular hexagonalarray of uniform pore openings, aroused a worldwide resurgence in this field. this is not onlybecause it has brought about a series of novel mesoporous materials with various compositionswhich may find applications in catalysis, adsorption, and guest-host chemistry, but also it hasopened a new avenue for cr...

ucb-1 (pistacia atlantica × p. integrima) is a commercial rootstock for pistachio in some pistachio plantations across the world. this rootstock is very new in iran and recently, it has been used commercially in some plantations due to its high growth. propagation of this rootstock by tissue culture results in many limitations such as shoot tip necrosis (stn) and a low proliferation rate. there...

objective: several studies have implicated the 5-httlpr polymorphism in treatment outcomes of selective serotonin re-uptake inhibitors in patients with major depression. the aim of this study was to examine the association between polymorphism in the serotonin transporter gene and citalopram effectiveness in iranian patients suffering from major depressive disorder (mdd). methods: the sample co...

bachground: endometriosis is a disease of female genital system, which is defined by the presence of ectopic endometrial tissue outside the uterine cavity. il-8 is an autocrine growth factor in the endometrium that contributes to the pathogenesis of endometriosis. the aim of this study was to investigate the association between -251t/a polymorphism in the il-8 gene and endometriosis risk in ira...

background: copper-64 (t1/2=12.7 h) is an important radionuclide used both in pet imaging and therapy. [64cu]-pyruvaldehyde-bis (n4-methylthiosemicarbazone) ([64cu]-ptsm) is one of the most famous copper radiopharmaceuticals with unique specifications (suitable half life, stability, etc.). the wide range of 64cu applications arouse great interest for its production. materials and methods: cu-64...

polyamide-66(pa66)/caco3 micro- and nano-composites were prepared using a polymer solution method at filler loading of 0, 1, 2 and 3 weight percent. nano-size of caco3 was synthesized by micro-emulsion technique. the material was characterized by xrd, sem, ftir and uv-vis techniques. xrd results of composites suggested that caco3 particles are found in the amorphous phase of the semi-crystallin...

a simple and sensitive method is described for the pre-concentration by cloud point extraction followed by atomic absorption spectrometric determination of copper ion in real samples. at a solution ph of 5.5, 5, 5-diphenylimidazolidine-2, 4-dione (phenytoin) (dfid) and tritonx-114 were used as hydrophobic ligand and non-ionic surfactant. the adopted concentrations for dfid, triton x-114 and hno...

adsorption of 1-butanol, phenol, and p-nitrophenol on activated carbon havebeen studied. the results were used to testifying the validity of different modelsbased on thermodynamic principles: freundlich, langmuir and henry isotherms.the maximum capacity of adsorbent for three compounds was determined, theconstants of equilibrium were determined by freundlich isotherm and virialisotherm expressi...