objective(s):valproic acid (vpa), a drug used in the treatment of neurological disorders, has been shown to have cytotoxic effects on cancer cells through different mechanisms. telomerase, a ribonucleoprotein reverse transcriptase, is responsible for elongation of the telomere and is activated in cancers. a relation between telomerase activity and resistance to apoptosis has been established. t...

this study was conducted to evaluate consumption inputs, production costs, nutrient composition and performance in production of alfalfa hay and alfalfa silage. therefore, data on alfalfa hay production were collected from 75 farms in zanjan province, using a face to face questionnaire in the year 2012. a systematic random sampling method was used. then, two farms managed by silage harvesting s...

friedel–crafts synthesis of triarylmethanes over 3-methyl-1-sulfonicacid imidazolium tetrachloroaluminate under green conditions:in this work, friedel–crafts (fc) alkylation of various arenes with aromatic aldehydes catalyzed by 3-methyl-1-sulfonic acid imidazoliumtetrachloroaluminate {[msim]alcl4}, as a green catalyst, to prepare triarylmethanes (tams) has been carried out. some aromatic aldeh...

the aim of this research was to investigate the efficiency of ldpe films incorporating fifferent nanofillers in extending orange juice shelf life. fresh orange juice packed in different films was assessed for microbial stability, ascorbic acid content, ph, color parameters and sensory quality during 0, 7, 28 and 58 d of storage. mold and yeast growth, acidophil and aerobic mesophil bacteria pop...

background and purpose: a 3-unit course is dedicated to general language in medical universities and the vocabulary and text structure of the courses have usually no relation to medical language. we examine whether teaching general language will be as effective as medical language as assessed through recall of general and medical vocabulary and text structure knowledge. methods: an experimental...

cold stress is considered as a restricting factor in plant production. recently, many different compounds were applied to minimize the harmful effects of stress. in this study, the effects of foliar application of salicylic acid was studied on some biochemical properties of two different cold resistant canola cultivars. salicylic acid was sprayed at four concentrations (0, 100, 200 and 400 µm) ...

due to the increasing development in various branches of the automotive industry, the need for a comfort climate in the cabin is more sensible. however, to achieve climate comfort, hvac system consumes a considerable amount of engine power. hence, improving hvac system performance leads to more energy saving of the vehicle which is a critical factor for nowadays automotive. besides, one crucial...

background and purpose: the relation of comprehensive exams scores and other measures of students’ performance has been of great importance. this study is an attempt to assess the associations between medical students’ scores in physiopathology and clinical courses and to compare these scores with their scores in the comprehensive exams. methods: medical students’ scores in their courses and al...

the study of biochemical characteristics and metabolic activity of lactobacilli is necessary for selecting strains to be used as starter cultures for bread production. in this study, biochemical characteristics, acidification and probiotic properties of lactobacillus strains (lactobacillus plantarum, l. curvatus, l. paralimentarius) isolated from traditional sourdoughs were evaluated. all three...