background: enzymes are well known as sensitive catalysts in the laboratory and industrial scale. to improve their properties and for using their significant potential in various reactions as a useful catalyst the stability of enzymes can often require improvement. enzymes immobilization on solid supports such as epoxy- functionalized ferric silica nanocomposite can be effective way to improve ...

the history of islam has abounded with different kinds of fetna (literary, sedition) and experienced the diverse seditious movements for many centuries. in nahjulbalagha, imam ali (pbuh) tried to shed light on the dark sides of fetna and its kinds. in the present paper, imam ali’s clear-cut description and the close illustration of fetna, its formation and consequences, and imam ali’s solutions...

the objective of this research was to study the drying characteristics of powderedagricultural residues. drying experiments of wheat straw (triticum aestivum) wereconducted at four temperatures of 50, 60, 70, and 80°c by a thermogravimetric analyzer.drying temperature had a significant effect on the moisture change and drying time.there was no constant drying rate period, but a short rising rat...

introduction: the goal of professional librarians and informatics is providing useful services for users. this study aims to recognize the rate of commitment and authority of librarians to ethics instruction. method: this study is an applied ex post facto research. the population of study includes all librarians of isfahan public libraries in 2012. by in access selection, 207 questionnaires wer...

as a modern solution to portrait poets’ emotions, free verse is essentially important. there is a lot of difference in attitude toward the exact date of its arising and disadvantages and advantages in contrast to classic and traditional verse among critiques. some of them believe that arabic free verse is stemmed in acrostic verse – a type of vernacular verse that was appeared in andalusia. oth...

placenta plays a vital role in normal fetal development and failure of placenta to gain weight and insufficiency of its function can result in fetal disorders. we performed this study to determine placental weight and factors associated with low weight placentas. in a longitudinal cross-sectional study, women with single pregnancy, and gestational age between 37-42 weeks were studied. the subje...