Grafting of vinyl monomers onto cellulose is an important tool for the modification of cellulose. Depending on the monomer grafted onto cellulose, it gains new properties. The grafting can be performed in heterogeneous or homogeneous medium. In the grafting performed in heterogeneous medium, the reaction is carried out in aqueous medium using a suitable initiator. As initiator, the radiation or...

walnut is one of the most important nut crops in iran. in order to achieve an appropriate and economical production of old seedling orchards of this product, the only fastest and most cost-effective possible option for improving seedling trees is graft operation through top-working using the new improved cultivars in the world. this study was conducted as a  factorial experiment in a randomized...

OBJECTIVES This study identified potential general influencing factors for a mathematical prediction of implant stability quotient (ISQ) values in clinical practice. METHODS We collected the ISQ values of 557 implants from 2 different brands (SICace and Osstem) placed by 2 surgeons in 336 patients. Surgeon 1 placed 329 SICace implants, and surgeon 2 placed 113 SICace implants and 115 Osstem i...

objectives: the purpose of the present study is to investigate the oral narrative skills of late talkers mostly caused by mental disorders while they try to comprehend a wordless sequential picture story to create and narrate the relevant story. methods: to this end, 15 (10 male and 5 female) participants were who were the students of a specialized school for physically and mentally retarded st...

background the human leukocyte antigen (hla) system is widely used as a strategy in the search for the etiology of renal function impairment. objectives this study was carried out to detect the most common hla alleles’ distribution in kidney transplant in both donors and recipients, and clarify the association between hla alleles and renal dysfunction immediately after transplantation. patients...

The Prunus genus contains many of the most economically significant arboreal crops, cultivated globally, today. Despite economic significance these domesticated species, pre-cultivation ranges, processes domestication, and routes prehistoric dispersal for all species remain unresolved. Among European plums, even taxonomic classification has been heavily debated over past several decades. In thi...

budding is a good method of propagation in the persian walnut (juglans regia l.)., however, success of budding is low due to higher root pressure as well as the presence of phenolic compounds in the xylem sap. this study was conducted to compare various budding methods and cut below budding :union: on two and three-year-old persian walnut under field conditions. the experiment was conducted bas...

Background: Surgical treatments of vitiligo are punch grafting, blister grafting, flip-top transplantation, split skin grafting, etc aiming at rebuilding of melanocytic population in those patients who do not respond to medical treatment . The objective of this study was determination of efficacy of blister grafting technique in the treatment of vitiligo. Methods: This study was done on 10 pati...