The aim of this work was to study the in vitro release of piroxicam suspended in the internal phase of some W/O/W (water/oil/water) double emulsions and to investigate the effect of hydrophilic macromolecules (hydroxyethylcellulose and Carbopol 940) in the external aqueous phases of W/O/W double emulsions on the diffusion profiles of piroxicam through synthetic membranes. W/O/W double emulsions...

Era informaţiei cuprinde, în general, trei mari perioade [1]: societatea informaţională, societatea cunoaşterii şi societatea conştiinţei. În istoria României pot fi desprinse câteva etape ale erei informaţiei: O etapă premergătoare, între anii 1940-1965, în care Tudor Tănăsescu a creat şcoala româ-nească de electronică [2], Victor Toma a creat primul calculator electronic românesc cu tuburi el...

Recently, a new ISO standard for loudness of arbitrary sounds ISO 532-1 (1) was proposed for the revision of ISO 532:1975 section 2 (method B) (2). It is based on DIN 45631/A1:2010 (3), which includes the widely used standard DIN 45631:1991 (4) for stationary sounds as a special case. ISO 532-1 eliminates uncertainties of existing standards by strictly defining the complete procedure of loudnes...

Many applications of various self-adjoint differential equations, whose solutions are complex, are produced Arfken, 1985; Gandarias, 2011; and Delkhosh, 2011 . In this work we propose a method for the solving some self-adjoint equations with variable change in problem, and then we obtain a analytical solutions. Because this solution, an exact analytical solution can be provided to us, we benefi...

Rezumat: Obiectivul principal al prezentului articol este analiza activitatii intreprinderilor franceze din Romania ca urmare a utilizarii tot mai acute in sfera productiva a tehnologiilor de informatie si comunicatie. Ansambul convergent de tehnologii de informatie si comunicatie, procesul de mondializare economica au dus la o vasta transformare a activitatii economice. Articolul face parte di...