Two recent developments in the field of formal languages are Parsing Expression Grammar (PEG) and packrat parsing. The PEG formalism is similar to BNF, but defines syntax in terms of recognizing strings, rather than constructing them. It is, in fact, precise specification of a backtracking recursivedescent parser. Packrat parsing is a general method to handle backtracking in recursive-descent p...

word formation and word selection in one hand’ are considered from higher processes a word aqualization which has a wide range application for language theorists and researchers in order to enrich language or in a better way in order to set free them from words. inadequacy challenge and also lach of the knowledge of the words in technology and industry fields aspecially in arabic and persian sp...

Fluorinated spheres with grafted poly(ethylene glycol) (PEG) have been synthesized using a semi-batch emulsion polymerization in which the initiator is fed slowly to the reaction. In this way, PEG-grafted colloidal spheres can be fabricated with varying PEG chain length, different cores and varying degrees of crosslinking. The resulting batches have been characterized using disc centrifuge phot...

Ruthenium oxide nano-catalysts supported on mesoporous γ-Al2O3 have been prepared by co-precipitation method and tested for CO oxidation. The effect of polyethylene glycol (PEG) on the properties of the catalyst was studied. Addition of the PEG surfactant acted as a stabilizer and induced a change in the morphology of ruthenium oxide from spherical nanoparticles to one-dimensional nanorods. Tot...

BACKGROUND Standard-volume polyethylene glycol (PEG) gut lavage solutions are safe and effective, but they require the consumption of large volumes of fluid. A new lower-volume solution of PEG plus ascorbic acid has been used recently as a preparation for colonoscopy. AIM A meta-analysis was performed to compare the performance of low-volume PEG plus ascorbic acid with standard-volume PEG as ...

BACKGROUND Since enteral nutrition therapy is the preferred nutritional support for dysphagic patients with a range of diagnoses, PEG has become part of traditional care. However, enteral nutrition with PEG transfers treatment responsibility and activity to the patients and their carers, so the advantages should be discussed. The aim of this study was therefore to investigate patients' experien...

We have developed an automated method for measuring high-density lipoprotein (HDL)-cholesterol in serum without prior separation, using polyethylene glycol (PEG)-modified enzymes and sulfated alpha-cyclodextrin. When cholesterol esterase and cholesterol oxidase enzymes were modified with PEG, they showed selective catalytic activities towards lipoprotein fractions, with the reactivity increasin...

PEGylation of therapeutic proteins has signifi cantly improved their value by altering the physicochemical and biological properties such as increased solubility, decreased immunogenicity, increased half-life, and protection against proteases. Size Exclusion Chromatography (SEC) is the method of choice for determining impurities with molecular mass higher than that of PEGylated proteins. SEC of...

Curcumin, a phenolic antioxidant compound derived from the rhizome of the turmeric plant Curcuma longa, has proven to be a modulator of intracellular signaling pathways that control cancer cell growth, inflammation, invasion and apoptosis, revealing its anticancer potential. In this study, a Glycyrrhetinic Acid-Modified Curcumin-Loaded Nanostructured Lipid Carrier (Cur-GA-PEG-NLC) was prepared ...

We present a simple, direct soft lithographic method to fabricate poly(ethylene glycol) (PEG) microstructures for protein and cell patterning. This lithographic method involves a molding process in which a uniform PEG film is molded with a patterned polydimethylsiloxane stamp by means of capillary force. The patterned surfaces created by this method provide excellent resistance towards non-spec...