In the former studies, spectral analysis of self-guided optical filaments, which were generated with pulses close to the critical power for filamentation in air, showed that the shot-to-shot statistics become heavy-tailed at the short wavelength and long wavelength edges of the spectrum.
22.
Law " et al . " overexpressed a human cDNA library in " S . cerevisiae ", and screened for genes that simultaneously affected cell cycle and cell polarity controls, inducing a filamentous yeast budding phenotype, and thus identified the HEF1 protein ( Human Enhancer of Filamentation 1 ).
23.
:* In " Helycobacter pylori ", a spriral-shaped Gram-negative bacterium, the filamentation mechanism are regulated by two mechanisms : "'the peptidases that cause peptidoglycan relaxation and the coiled-coil-rich proteins ( Ccrp ) "'that are responsible for the helical cell shape " in vitro " as well as " in vivo ."
