Whereas the positive equilibrium of a mass-action system with deficiency zero is always globally stable, for deficiency-one networks there are many different scenarios, mainly involving oscillatory behaviour. We present several examples, centers or multiple limit cycles.

Consider a Markovian Petri net with race policy. The marking process has a “product form” stationary distribution if the probability of viewing a given marking can be decomposed as the product over places of terms depending only on the local marking. First we observe that the Deficiency Zero Theorem of Feinberg, developed for chemical reaction networks, provides a structural and simple sufficie...

glucose-6-phosphate dehydrogenase (g6pd) deficiency is the most important disease of the hexose monophosphate pathway. deficiency of this enzym can lead to hemolysis of red blood cells. our aim was to study the prevalence of g6pd deficiency in relation to neonatal jaundice. we studied 456 clinically icteric neonates laboratory investigations included determination of direct and indirect serum b...

this paper presents a systematic study of the surface chemistry, porous texture and adsorptive characteristics of prepared new activated carbon using persian mesquite grain. several techniques and methodologies such as, proximate analysis, n2 adsorption–desorption isotherms, scanning electron microscope (sem), fourier transform infrared spectroscopy(ft-ir), x-ray diffraction (xrd), x-ray photoe...