Tobacco is a heavily pesticide-dependent crop. Because pesticides involve human safety and health issues, they are regulated nationally and internationally; however, little is known about how tobacco companies respond to regulatory pressures regarding pesticides. In this study we analyzed internal tobacco industry documents to describe industry activities aimed at influencing pesticide regulati...

Influenza A virus causes recurring seasonal epidemics and occasional influenza pandemics. Because of changes in envelope glycoprotein Ags, neutralizing Abs induced by inactivated vaccines provide limited cross-protection against new viral serotypes. However, prior influenza infection induces heterosubtypic immunity that accelerates viral clearance of a second strain, even if the external protei...

BACKGROUND The operation of aortic valve replacement (AVR) after CABG is a technically challenging procedure in respect to dissection of living grafts from its surrounding tissue, myocardial protection, and so on, especially that procedure to patients with living in situ functional arterial grafts to occluded native coronary arteries has a special problem in regard to myocardial protection beca...

In the last decades, a significant number of large concrete structures with deterioration problems, related to internal expansive chemical reactions, have been detected in Portugal. This type degradation is associated formation products causing its disruption, leading decrease structure’s service life and, ultimately, decommissioning or demolition structure. Portugal, affected by this pathology...

Abstract Titanium cranioplasty is one of the well-established and widely used techniques in restoring skull defects for optimal protection to skull internal structures and reestablishing skull conformity. Nowadays, most centres utilise computer-assisted reconstruction for manufacture of titanium plates. In this paper we presented a method for making titanium cranioplasty plates using the 3D inn...

BACKGROUND AND PURPOSE Periprocedural embolization of debris during carotid stenting interventions may result in neurological deficit. This study was designed to evaluate in-hospital and 30-day adverse events in patients percutaneously treated for carotid artery disease with embolic protection devices. METHODS From 1999 to June 2002, a total of 442 consecutive patients underwent percutaneous ...