introduction: nowadays,  considerable developments  in  the field  of  radiotherapy have  been  achieved.  they  include  the  advances  made  in  the  equipments  and  treatment  planning  techniques  which  require  highly complex calculations. such achievements have made it possible to treat cancer patients not only  with  higher  radiation  dose  but  also  with  higher  precision  and  con...

The theoretical basis for analyzing the effects of an allosteric modulator on the response to an agonist is described. The effects of an allosteric modulator on the concentration-response curve to an agonist can be attributed to changes in the observed dissociation constant and intrinsic efficacy of the agonist-receptor complex. Each of these two changes can be represented by a coefficient or f...

Although recombinase polymerase amplification (RPA) has many advantages for the detection of pathogenic nucleic acids in point-of-care applications, RPA has not yet been applied for has not yet been implemented to quantify sample concentration using a standard curve. Here we describe a real-time RPA assay with an internal positive control and an algorithm that analyzes the real-time fluorescenc...

     Resonance light scattering (RLS) intensity of silver nanoparticles in the presence of sodium dodecylsulphate was quenched on addition of sulfasalzine. The quenching extent was shown to be proportional to the sulfasalazine concentration. Effect of different parameters such as pH, volume and kind of buffer, silver nanoparticles concentration, sodium dodecylsulphate (SDS) concentration, and w...