The design of a new additive manufacturing (AM) system based on extrusion and 3D deposition of a mixture of metal (or advanced ceramic) powder and polymeric binder is described in this paper. The proposed system is totally innovative in terms of combination of deposited work material, extrusion system (head and nozzle), and deposition work table, which is based on a 5-axes parallel kinematics m...

Open hindfoot injuries result from high-energy trauma and include soft tissue disruption, joint dislocations, with possible chondral and osseous injuries. The term “total talus dislocation”, is an uncommon open hindfoot injury associated with talar extrusion. However, a total talus dislocation without extrusion has not been reported. This case presents an open hindfoot injury with dislocations ...

Engineering of efflux pumps is a promising way to improve host's tolerance to biofuels such as medium-chain alcohols (CmOHs); however, this strategy is restricted by poor understanding of the efflux pumps engaged in extrusion of solvents. In this study, several Escherichia coli mutants of multidrug transporters were evaluated for isoprenol tolerance. Susceptible phenotypes were observed in the ...

BACKGROUND It has previously been shown that testosterone implantation is an effective and well accepted form of androgen replacement therapy, but that pellet extrusion was the most frequent side-effect. The present study aimed to reduce the extrusion rate. OBJECTIVE To determine whether the washing of testosterone pellets to remove potentially surface-adherent particles decreased the rate of...

Ocular cystericosis is the common occurrence among the people of lower socioeconomic status and poor personal hygiene in developing countries. However, spontaneous extrusion of subconjuctival cysticercous cyst is a rare incidence. The present case report describes a spontaneous extrusion of subconjunctival cyst in a 12 year old boy in our clinical set-up. The histopathological examination revea...

Flow instabilities occur in a variety of commercial polymer processing operations including extrusion, film blowing, fiber spinning and coating. During the extrusion of molten polymer through capillary or slit die geometries, a transition from a smooth surface to a nearly periodic ridge-like surface distortion has been observed at a critical shear rate or wall shear stress (Petrie and Denn 1976...

This paper describes the outcomes of a study that the EDMANS(**) group has recently performed in a rubber extrusion process, focusing on the knowledge discovery phase previous to the system modeling. Some of the tools developed to satisfy the special needs of such a process are also presented: the CiTree algorithm for clustering subpopulations in massive databases and the PAELLA algorithm for o...

Discrepancy in the labial gingival margin of the maxillary incisors poses a major aesthetic problem. Orthodontic extrusion can improve the aesthetic problem caused by gingival margin levels before restoration. In these case reports, orthodontic extrusion was performed with palatal circumferential supracrestal fiberotomy for improving the discrepancy of the labial gingival margin. Two years post...

AIM To report the presentation and management of two cases with neurological complications secondary to the extrusion of sodium hypochlorite solution into the facial soft tissues during root canal treatment. SUMMARY The clinical features, with particular emphasis on nerve deficit following inadvertent extrusion of sodium hypochlorite, are discussed and its management highlighted. Early and ag...

A 77-year-old lady presented to the gynaecology outpatient clinic with vaginal extrusion (3C/T3/S1) six years after a transobturator suburethral sling procedure (TOT). The entire tape was spontaneously extruded vaginally and the vaginal erosion healed with conservative management. Midurethral tapes, currently the standard of care in the management of urodynamic stress incontinence (USI), are as...