Search Results - subject:"Gompertz equation"

Phase transitions in tumor growth: II prostate cancer cell lines

Llanos-Pérez, J.A.; Betancourt-Mar, A.; De Miguel, M.P.; … - In: Physica A: Statistical Mechanics and its Applications 426 (2015) C, pp. 88-92

We propose a mechanism for prostate cancer cell lines growth, LNCaP and PC3 based on a Gompertz dynamics. This growth exhibits a multifractal behavior and a “second order” phase transition. Finally, it was found that the cellular line PC3 exhibits a higher value of entropy production rate...

Persistent link: https://www.econbiz.de/10011209675

Mathematical modeling of tumor growth in mice following low-level direct electric current

Cabrales, Luis Enrique Bergues; Aguilera, Andrés Ramírez - In: Mathematics and Computers in Simulation (MATCOM) 78 (2008) 1, pp. 112-120

A modification to the conventional Gompertz equation (named modified Gompertz equation) is introduced to describe the … intensities of direct electric current are also made to validate this modified Gompertz equation. The results obtained in this … effects of it into the tumor, and of the tumor type. It was concluded that the modified Gompertz equation has a good …

Persistent link: https://www.econbiz.de/10011050342

"S-shaped" curves in economic growth : a theoretical contribution and an application

Jarne Jarne, Gloria; Sánchez Chóliz, Julio; … - In: Evolutionary and institutional economics review 3 (2007) 2, pp. 239-259

Persistent link: https://www.econbiz.de/10003495966

"S-shaped" Economic Dynamics. The Logistic and Gompertz curves generalized.

Gloria Jarne, Julio Sánchez-Chóliz, Francisco … - IFReDE - Université Montesquieu Bordeaux IV - 2005

<p> Over the years "S-shaped" evolutions have regularly been incorporated in economic models, and indeed in those of other sciences, by way of the logistic or Gompertz equations. However, both equations have noteworthy shortcomings when fitting some empirical features of economic growth: the...</p>

Persistent link: https://www.econbiz.de/10005032771