scholarly journals Combining Segregation and Integration: Schelling Model Dynamics for Heterogeneous Population

Author(s):  
Erez Hatna ◽  
Itzhak Benenson
Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 124
Author(s):  
Neli Dimitrova ◽  
Plamena Zlateva

We propose a mathematical model for phenol and p-cresol mixture degradation in a continuously stirred bioreactor. The model is described by three nonlinear ordinary differential equations. The novel idea in the model design is the biomass specific growth rate, known as sum kinetics with interaction parameters (SKIP) and involving inhibition effects. We determine the equilibrium points of the model and study their local asymptotic stability and bifurcations with respect to a practically important parameter. Existence and uniqueness of positive solutions are proved. Global stabilizability of the model dynamics towards equilibrium points is established. The dynamic behavior of the solutions is demonstrated on some numerical examples.


2019 ◽  
Vol 27 (4) ◽  
pp. 298-300
Author(s):  
Céline Miani ◽  
Oliver Razum ◽  
Jacob Spallek

Abstract Children with a migration background are more at risk of health-related problems than those without a migration background. The German health system still does not adequately meet the challenges of on increasingly heterogeneous population, not least due to a lack of adequate epidemiological data and models. The BaBi study contributes to gaining new insights in the development of health inequalities due to cultural diversity in Germany, with a focus on pregnancy and early childhood.


2013 ◽  
Vol 31 (6) ◽  
pp. 1135-1146 ◽  
Author(s):  
Guiyi Wei ◽  
Ping Zhu ◽  
Athanasios V. Vasilakos ◽  
Yuxin Mao ◽  
Jun Luo ◽  
...  

2014 ◽  
Vol 356 (1) ◽  
pp. 173-180 ◽  
Author(s):  
E. H. Baffou ◽  
A. V. Kpadonou ◽  
M. E. Rodrigues ◽  
M. J. S. Houndjo ◽  
J. Tossa

2012 ◽  
Vol 2012 ◽  
pp. 1-20 ◽  
Author(s):  
Felipe de Almeida Sassi ◽  
Algemir Lunardi Brunetto ◽  
Gilberto Schwartsmann ◽  
Rafael Roesler ◽  
Ana Lucia Abujamra

Gliomas are the most incident brain tumor in adults. This malignancy has very low survival rates, even when combining radio- and chemotherapy. Among the gliomas, glioblastoma multiforme (GBM) is the most common and aggressive type, and patients frequently relapse or become refractory to conventional therapies. The fact that such an aggressive tumor can arise in such a carefully orchestrated organ, where cellular proliferation is barely needed to maintain its function, is a question that has intrigued scientists until very recently, when the discovery of the existence of proliferative cells in the brain overcame such challenges. Even so, the precise origin of gliomas still remains elusive. Thanks to new advents in molecular biology, researchers have been able to depict the first steps of glioma formation and to accumulate knowledge about how neural stem cells and its progenitors become gliomas. Indeed, GBM are composed of a very heterogeneous population of cells, which exhibit a plethora of tumorigenic properties, supporting the presence of cancer stem cells (CSCs) in these tumors. This paper provides a comprehensive analysis of how gliomas initiate and progress, taking into account the role of epigenetic modulation in the crosstalk of cancer cells with their environment.


2013 ◽  
Vol 24 ◽  
pp. 217-226 ◽  
Author(s):  
Saori Iwanaga ◽  
Akira Namatame

Author(s):  
Cesar C. Ceballos ◽  
Shuang Li ◽  
Antonio C. Roque ◽  
Thanos Tzounopoulos ◽  
Ricardo M. Leão

2015 ◽  
Vol 36 (20) ◽  
pp. 2630-2633 ◽  
Author(s):  
Guillaume Sautrey ◽  
Raphaël E. Duval ◽  
Alicia Chevalley ◽  
Stéphane Fontanay ◽  
Igor Clarot

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