859 research outputs found
Acoustic-statistical analysis of voice quality
The investigation deals with long-time analyses of: (1) fundamental frequency, (2) intensity above 1000 Hz relative to the total intensity, and (3) total intensity. Data are sampled 20 times per second. For each parameter, the mean and the coefficient of variance are calculated. The method seems useful for comparisons of changes in prosody taking place e.g. during voice training. Especially the coefficient of variance seems to be a good measure for the dispersion of pitch, "voice quality" , and intensity
Improved Mos1-mediated transgenesis in C. elegans
Journal ArticleThe ability to add or delete genes to the genome of genetic model organisms is essential. Previously, we developed methods based on the Mos1 transposon1 to make targeted transgene insertions (Mos1-mediated Single Copy transgene Insertions, MosSCI2) and targeted deletions (Mos1-mediated deletions, MosDEL3) in Caenorhabditis elegans, the latter reported in your pages. Here, we present new reagents that improve the efficiency, facilitate the selection for transgenic strains and expand the set of MosSCI insertion sites
- …