Search PubMed⌕ Search

Biomedical subjects

R Rosen

Publications and source records attributed to R Rosen.

At least 91 records · Page 5Linked to original sources
PubMed1975

Ion distributions in plane and cylindrical chambers.

The ion chamber equations of Thomson include both ion recombination and space-charge terms. Neglecting the space-charge term, an exact solution is obtained for the ion densities across a plane ionization chamber. The method is extended to the cylindrical chamber, and examples are given of the expected ion distributions in both geometries. Current-voltage relationships are derived for both chambers and compared with those of other workers. If the space-charge term is retained, the ion chamber equations for both geometries are not soluble in closed form. The cylindrical chamber is considered and a computer solution is obtained for the ion distributions and current. Comparison with the nonspace-charge solution shows that while there is only a small difference in the current-voltage relationship, a significant difference can occur in the ion concentrations.

Electrochemistry↗
PubMed1975

Tibiotalar slant: a new observation in sickle cell anemia.

Several examples of a peculiar deforming process about the ankle joint resulting in a tibiotalar deformity are reported. When found in black patients, further examination for sickle cell disease should be done. No previous mention of this deformity in connection with sickle cell anemia has been found.

Adolescent↗