Homogeneous nucleation and droplet growth in supersaturated argon vapor: the cryogenic nucleation pulse chamber.

We built a cryogenic nucleation pulse chamber for measuring homogeneous nucleation rates of argon. First measurements show that the growth rate of argon droplets at nucleation conditions is rather high so that nucleation and growth could not yet be decoupled. Nevertheless, the experiments permit an estimate of the onset of nucleation corresponding to a nucleation rate of J=10(7(+/-2)) cm(-3) s(-1) at temperatures 52 View Article and Find Full Text PDF

[Concerning specific language impairment: intelligibility in expressive language].

Background: Even in the age of two years toddlers with Expressive Language Impairment (SLI-E) differ regarding their phonetic inventories compared with an age-matched group developing normally.

Method And Patients: PCC-R scores of 19 children with expressive language disorder, aged between four and six years, are compared with age and sex matched controls with normal language acquisition.

Results: There are significant differences between PCC-R scores, children with expressive language disorder show lower scores than children with normal language acquisition.