It is shown by competition experiments that tobacco cell lines have distinct transport systems for L-amino acids. For all tested amino acids the Lineweaver-Burk plots were diphasic indicating the presence of more than one carrier for any one amino acid. Moreover distinct transport systems for neutral, acidic and basic amino acids were kinetically characterized. Based on competition experiments ...

Leg muscle EMG responses evoked by short treadmill acceleration impulses applied during stance were analysed in patients with spastic hemiparesis. The compensatory reactions on the unaffected side consisted of a diphasic pattern of leg muscle activation. The first response could best be described as a polysynaptic spinal stretch reflex response. This response was absent on the spastic side, exc...

P H A S E 1 and phase-2 antigen types of a diphasic salmonella strain are determined by distinct genes, H I and H,, respectively (LEDERBERG and EDWARDS 1953; LEDERBERG and IINO 1956). They are nonallelic and are transduced independently. Therefore, an H-antigen type recombinant obtained by a transduction usually expresses the antigen type of the donor in one phase, but retains that of the recip...

We observe distinct regimes of orbital angular momentum (OAM) transfer from two-dimensional Bessel-shaped acoustic vortices to matter. In a homogeneous diphasic mixture of microparticles and water, slow swirling about the vortex axis is seen. This effect is driven by the absorption of OAM across the mixture, the motion following the OAM density distribution. Larger particles are formed into clu...

This paper deals with the development of a model for concrete subjected to dynamic loads. Shock waves are generated by Pulsed Arc Electro-hydraulic Discharges (PAED) in water and applied to mortar samples. A diphasic model (liquid water and vapour) is implemented in order to describe the electrical discharge and the propagation of shock waves in water. An anisotropic damage model is devised, wh...

I? HASE-1 and phase-2 antigen types of a diphasic salmonella strain are determined by distinct genes, H, and H,, respectively (LEDERBERG and EDWARDS 1953; LEDERBERG and IINO 1956). They are nonallelic and are transduced independently. Therefore, an H-antigen type recombinant obtained by a transduction usually expresses the antigen type of the donor in one phase, but retains that of the recipien...

I N diphasic strains of Salmonella, the flagellar antigen type oscillates between phase-l and phase-e. The phenomenon has been known as phase variation. Its genetic mechanism was studied in detail by LEDERBERG and IINO (1956). The frequency of phase variation is generally as high as 10-j to 10m3 per cell per division (STOCKER 1949) ; but a much lower frequency of the alternation has been observ...