background: age is one of the most important factors that have consistently emerged as the most potent predictors of mortality and morbidity after coronary artery bypass graft (cabg) surgery. however, early results of cabg in young patients in comparison with elderly ones have been different in previous surveys. the aim of this study was to compare short-term mortality and morbidity in young ve...

Chemical grafting of 3-aminipropyl triethoxysilane to carbonized bagasse and acidification of amino groups leads us to introduce a new, efficient and green solid acid catalyst. We used the Fourier-transform infrared spectroscopy (FT-IR), X-Ray Diffraction (XRD), Thermogravimetric analysis (TGA), Field Emission Scanning Electron Microscope (FE-SEM), elemental-mapping and Energy Dispersive X-ray ...

Surface-initiated atom transfer radical polymerization (ATRP) has been used to prepare antifouling copolymer brushes based on 2-(2-methoxyethoxy)ethyl methacrylate (MEO(2)MA) and hydroxyl-terminated oligo(ethylene glycol) methacrylate (HOEGMA). The amount of hydroxyl reactive groups incorporated into the brushes was varied by changing the composition of the monomer mixture. These coatings were ...

lease Patterns after Coronary Artery Bypass Grafting with or without Cardiopulmonary Bypass and after Aortic and Mitral Valve Surgery, Joost C.J.M. Swaanenburg, Bert G. Loef, Marcel Volmer, Piet W. Boonstra, Jan G. Grandjean, Massimo A. Mariani, and Anne H. Epema ( Department of Pathology and Laboratory Medicine, 2 Thoracic Center, and 3 Department of Anesthesiology, University Hospital Groning...

In this work, we report the functionalization of flat Si(100) surfaces with a calix[8]arene derivative through a thermal hydrosilylation process, followed by docking with [60]fullerene. Chemical grafting of calix[8]arene on silicon substrates was evaluated by X-ray photoelectron spectroscopy, whereas host-guest immobilization of fullerene was demonstrated by atomic force microscopy and sessile ...

DNA adsorption on solid or liquid surfaces is a topic of broad fundamental and applied interest. Here, we study by X-ray reflectivity the adsorption of monodisperse double-stranded DNA molecules on a positively charged surface, obtained through chemical grafting of a homogeneous organic monomolecular layer of N-(2-aminoethyl) dodecanamide on an oxide-free monocrystalline Si(111) wafer. The adso...

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...