Moving forward noisily. Magnasco, M. 1993. Forced thermal ratchets. Rousselet, J., et al. Directional motion of brownian particles induced by a periodic asymmetric potential.
Molecular motor spins out energy for cells.
The same brain hormone mediates the metamorphosis of a tadpole to toad and the delivery of a baby. Corticotropin-releasing hormone is a proximate mediator of adaptive phenotypic plasticity in amphibian metamorphosis. Language disorder tied to sound perception Children exhibiting severe problems in using and understanding speech may have an impairment in their perception of the sounds that make up spoken expressions. Deficits in auditory temporal and spectral resolution in language-impaired children. Family's grammar loss provokes debate.