Ionization waves in electron-beam-assisted, shielded capillary discharge.

A theory of propagation of cathode-directed ionization waves during the early stages of an electrical breakdown in a shielded, low-pressure capillary is developed. The discharge process occurs due to the ionization of the low-density gas in the capillary by an electron beam that is emanating from a hollow cathode. Due to the strong electric field in the capillary the electrons are in the fast acceleration regime.

[Monoclonal antibodies to human small-cell lung cancer].

Murine monoclonal antibodies to human small cell lung cancer (SCLC) have been developed and partially characterized. Primary hybridoma clones were screened in the indirect immunofluorescence assay (IFA) on alive H417 cells. Then five clones (IgG1, IgG2a, IgG3 and IgM) non-reactive with normal human bone marrow cells and positively reactive with SCLC tumors were selected.