BACKGROUND Enterotoxigenic Escherichia coli (ETEC) is an important cause of childhood diarrhea in resource-limited regions. It is also an important cause of diarrhea in travellers to these areas.To evaluate the protective efficacy of new ETEC vaccines that are under development, there is a need to increase the capacity to undertake Phase IIB (human challenge) clinical trials and to develop suit...

this is an observational case series study on penetrating trauma admissions in three teaching hospitals in tehran from 1996 to 1997. in order to describe the epidemiology and determine the ways of improving treatment of penetrating injuries, we selected 410 patients with penetrating injuries and injury severity scores (iss) of more than 7 (the maximum iss is 75) out of 3580 trauma patients, hos...

context celiac disease (cd) is defined as a permanent intolerance to ingested gluten. the intolerance to gluten results in immune-mediated damage of small intestine mucosa manifested by villous atrophy and crypt hyperplasia. these abnormalities resolve with initiationa gluten-free diet. evidence acquisition pubmed, ovid, and google were searched for full text articles published between 1963 and...

Four herpes simplex type 1 virus (HSV) isolates were selected from patients with mild ocular disease and four from patients with severe ocular disease on the basis of the number of epithelial recurrences, presence or absence of stromal disease, visual acuity, and the need for corneal transplantation. The scarified right corneas of 20 BALB/c mice were inoculated with each low-passage HSV isolate...

A macroscopic finite element model has been established to investigate the forming-induced wrinkling behaviour for bi-axial fabrics. Results indicate that using a linear bending with constant stiffness produces unrealistic wrinkle patterns in fabric plies. non-linear more accurate forming induced compared experimental data, since parameter is varied as function of applied load account onset fib...

In this work, cold bulge forming of an Aluminium-Magnesium (Al-Mg) sheet with a solid bulging medium is performed experimentally and numerically.  Mechanical properties and thickness variations of Al-Mg sheet are evaluated before and after the forming process.  The results indicated that the Al-Mg sheet has taken the desired shape without necking using the cold bulge forming process.  Also, the...

recently, incremental sheet metal forming (ismf) process as one of the new methods in rapid prototyping collection has been considered by researchers. this process is based on a defined path in cnc controller and applies a spherical-head tool that supplies the required pressure for sheet metal forming. despite affirmation of process ability in forming symmetric geometries, some of its aspects s...

inhalation of fungal spores is shown to participate in the development of allergic rhinitis symptoms. in this study, relation between presence of alternaria in the human nasal cavity and allergic rhinitis is assessed. in a case-control study, 58 allergic rhinitis patients were compared with a well-matched control group of fifty healthy volunteers for sensitization to alternaria (by skin prick t...

Abstract. Automotive structural components from Advanced High Strength Steels (AHSS) can be manufactured with Flexible Roll Forming (FRF). Flange wrinkling is a common shape defect in FRF, this restricts the application of FRF automotive industry. The new Incremental Shape Rolling process (ISR) showed that high tensile transverse strain developed flange and assists plastic deformation flange. H...