Acido-4-ammino-2-azido butanoico, sua preparazione e suo impiego in terapia

Preparazione ed impiego in terapia dell'acido 4-ammino-2-azido butanoic

Nafion membrane potential in non-isothermal systems

The electrical potential difference of non-isothermal Nafion membrane cells has been studied in presence of CsCl, KCl, and NaCl as electrolytes. The thermal electrical potential appears to be rather well described by means of already available equations based on non-equilibrium thermodynamic theories. © 1990

Electrokinetic effects across Nafion 120 membranes

The electroosmotic coefficient, and the streaming potential across Nafion 120 membrane separating two uni-univalent electrolyte solutions of the same concentration have been studied. Different electrolytes have been considered, namely NaCl, LiOH, NaOH, KOH and CsOH. According to the non-equilibrium thermodynamic theories the ratio (Δφ/ΔP)/(Jv/I), with (Δφ)(electrical potential)/(gDP)(pressure difference) the streaming potential and Jv(volume flow)/I(electrical current flow) the electroosmotic quantity, approaches the unity

The rate of entropy change: gravitational effects.

The covariant form of entropy change (or balance) is expressed in the metric of the Schwarzschild line element. In this metric the rate of entropy change depends only on the time component of the metric tensor; it is then different at different points in space and appears to be slower in the presence than in the absence of a gravitational field. The linear equations originated by the internal entropy sources depend on both the time and radial components of the metric tensor and the transport processes behave anisotropically, being slower along the radial coordinate than in the directions of the others. The extent of rate reduction is expressed by the kinetic (transport) quantities which assume different values at different points in space

2-azido-ornithine, its preparation and its use in therapy

2-azido-ornithine: a process for its preparation and its therapeutic use are describe