Inhalation toxicity profiles of particulate matter: a comparison between brake wear with other sources of emission.

There is substantial evidence that exposure to airborne particulate matter (PM) from road traffic is associated with adverse health outcomes. Although it is often assumed to be caused by vehicle exhaust emissions such as soot, other components may also contribute to detrimental effects. The toxicity of fine PM (PM2.

Manufacture and in vitro characterization of a solvent/detergent-treated human plasma.

We have developed a modified solvent/detergent (S/D) treatment to inactivate viruses in human plasma using 1% w/w final concentration of tri(n-butyl) phosphate (TNBP) and Triton X-100 and an incubation period of 4 h at 30 degrees C. The procedure inactivates > or = 10(6) chimpanzee-infectious doses (CID50) of HBV, > or = 10(5) CID50 of HCV, and > or = 10(6.2) tissue culture infectious doses (TCID50) of HIV.

Molecular cloning and expression of a synthetic DNA coding for the antimicrobial protein of bull seminal plasma.

A DNA carrying the coding sequence for the antimicrobial protein from bull seminal plasma (SAP) was obtained by enzymic ligation of six synthetic oligonucleotides. The 162 bp synthetic DNA fragment was cloned into the C-terminal part of the lacZ-gene employing the vector pUR289. Expression in E.

[Causes and prevention of complications in transurethral interventions. Interventions in the urethra].

The male urethra is extremely vulnerable because of the peculiar morphology. Many urethral lesions and their sequelae are due to the disproportion between the diameter of the urethra and the applied instrument. In order to adjust both calibers it is advisable to use an internal urethrotomy in stead of bougies.