Prior to a community-based efficacy trial of long-lasting insecticidal nets (LLINs) in the prevention of visceral leishmaniasis (VL; also called kala-azar), a pilot study on preference of tools was held in endemic areas of India and Nepal in September 2005.LLINs made of polyester and polyethylene were distributed to 60 participants, who used the nets sequentially for 7 d. Acceptability and pref...

Biodegradable polyester fibers have been loaded with two engineered analogues of gramicidin soviet. In these cyclic peptide derivatives, which were designed in a previous work to stabilize the bioactive conformation while enhancing the antimicrobial activity, the D-Phe was replaced by D-Pro, and the L-Pro was changed by 1-aminocyclopropanecarboxylic acid (Ac3c) or by an Ac3c derivative with two...

INTRODUCTION The aim of this study was to assess the changes affecting natural killer cytotoxic cell (NKCC) activity following intraperitoneal implantation of a double veloured polyester prosthesis in a rat model. MATERIAL/METHODS Blood samples were taken by cardiac puncture 1 h before (base line) and 14, 28, 100 and 180 days post-implantation. Peripheral blood mononuclear cells were separate...

Novel aluminised E-glass fibre reinforced unsaturated polyester composites, originally formulated for enhanced thermal and electrical shielding properties were evaluated in terms of their thermal performance. The thermal degradation of these specimens was analysed using a thermogravimetric analyser (TGA). The samples were heated from ambient temperature to 500 1C at a heating rate of 20 1C/min....

A novel in situ fracture stage has been used to conduct micro compact tension (micro-CT) tests within the preparation chamber of a time-of-flight secondary-ion mass spectrometry (ToF-SIMS) instrument. Tests have been undertaken in the usual ultra high vacuum (UHV) conditions and in an ambient air atmosphere for comparison. A plain polyester resin system has been compared to an organically modif...

Superhydrophobic materials, with surfaces possessing permanent or metastable non-wetted states, are of interest for a number of biomedical and industrial applications. Here we describe how electrospinning or electrospraying a polymer mixture containing a biodegradable, biocompatible aliphatic polyester (e.g., polycaprolactone and poly(lactide-co-glycolide)), as the major component, doped with a...

This work reports the use of non-traditional fillers as flame retardants in polyester resin composites. Studies have been carried out to evaluate the fire-retardant properties of non-traditional fillers viz. hydroxyapatite, zinc borate and fly ash in combination with traditional fire retardant filler antimony trioxide, in prepolymer polyester resin composite system. Polyester resin was synthesi...

abstract: introduction & objective: teaching human anatomy, at any level, relies not only on the expertise of a tutor but also on the availability and use of good teaching aids. plastination specimens have a unique position as a teaching aid to exhibit accurate anatomical structures and are easy to be stored and handled by students. the aim of this study was to assess the comparative use of pol...

Suberin is a lipophilic macromolecule found in specialized plant cell walls, wherever insulation or protection toward the surroundings is needed. Suberized cells form the periderm, the tissue that envelops secondary stems as part of the bark, and develop as the sealing tissue after wounding or leaf abscission. Suberin is a complex polyester built from poly-functional long-chain fatty acids (sub...

The authors conducted a retrospective study comparing the corrective effect of two sublaminar techniques on scoliosis: the classical one, based on metal wire, and a more recent one, based on polyester tape (thoracic Universal Clamp), known to be safer (less risk of neurological damage, less laminar breakthrough) and compatible with MRI. Lumbar screws were used in both groups. The authors compos...