allama qutb al-din shirazi, is one of the elders and luminaries of iran and the islamic world and one of the great characters in the history of science in the world. despite of the popularity of allameh qutb al-din in medicine, he had reached to a degree of scientific development in different fields of science, literature, art and even folk art that he can be cited as an expert in that field. a...

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...