The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Inhalation studies of Mt. St. Helens volcanic ash in animals. I. Introduction and exposure system.

Due to the lack of information on the effects of inhaled Mt. St. Helens volcanic ash and its potential interaction with sulfur dioxide (SO2), animal studies were performed to determine the acute and chronic health effects of a short-term exposure. This paper describes the inhalation exposure system designed for these studies and theoretically compares the pulmonary deposition in the rats to that in humans. Considering the similarities and differences in regional pulmonary deposition in humans and animals, inhalation studies were performed with fine-mode (less than 2.5 micron aerodynamic diameter, Dae) ash. Comparisons to coarse-mode (greater than 2.5 micron Dae) ash were made using intratracheal instillation. A whole-body exposure system was designed to provide inhalation exposures of animals to Mt. St. Helens volcanic ash, SO2, or a combination of both. All exposures were conducted using fine-mode ash samples generated by a Wright dust feed mechanism at a mean concentration of 9.4 mg/m3 +/- 1.0 SD. Sulfur dioxide was maintained at 2.5 mg/m3 +/- 0.13 SD. Scanning electron microscopy, X-ray diffraction, and X-ray fluorescence were used to characterize the ash.[1]


  1. Inhalation studies of Mt. St. Helens volcanic ash in animals. I. Introduction and exposure system. Graham, J.A., Miller, F.J., Davies, D.W., Hiteshew, M.E., Walsh, L.C. Environmental research. (1985) [Pubmed]
WikiGenes - Universities