Sergei S. Pilyugin

AIMS ’ Journals Volume X, Number 0X, XX 200X pp. X–XX FEEDBACK-MEDIATED COEXISTENCE AND OSCILLATIONS IN THE CHEMOSTAT (2009)

Willard S. Keeran, Patrick De Leenheer, Sergei S. Pilyugin

(Communicated by) Abstract. We consider a mathematical model that describes the competition of three species for a single nutrient in a chemostat in which the dilution rate is assumed to be...

How Does Cross-Reactive Stimulation Affect the Longevity of CD8þ T Cell Memory? (2009)

Vitaly V. Ganusov, Sergei S. Pilyugin, Rafi Ahmed, Rustom Antia

Immunological memory—the ability to ‘‘remember’ ’ previously encountered pathogens and respond faster upon reexposure is a central feature of the immune response in vertebrates. The...

Divergence criterion for generic planar systems (2009)

Sergei S. Pilyugin, Paul Waltman

Abstract. The divergence criterion has been shown to be helpful in distinguishing between suband supercritical Hopf bifurcations, but its applicability is limited to systems whose divergence is sign...

Week 9-11: Nonlinear deterministic models. ∗ 1 Introductory notes (2009)

Sergei S. Pilyugin

In constantly evolving systems, such as growing populations of organisms, determinism is understood as the property of the current state of the system to uniquely predict all future states of the...

Multistrain virus dynamics with mutations: a global analysis (2008)

De Leenheer, Patrick, Pilyugin, Sergei S.

We consider within-host virus models with n ≥ 2 strains and allow mutation between the strains. If there is no mutation, a Lyapunov function establishes global stability of the steady state...

Immune response to a malaria infection: properties of a mathematical model (2007)

De Leenheer, Patrick, Pilyugin, Sergei S.

We establish some properties of a within host mathematical model of malaria proposed by Recker et al which includes the role of the immune system during the infection. The model accounts for the...

Multi-strain virus dynamics with mutations: A global analysis (2007)

De Leenheer, Patrick, Pilyugin, Sergei S.

We consider within-host virus models with more than one strain and allow mutation between the strains. If there is no mutation, a Lyapunov function establishes global stability of the steady state...

Advance Access publication on November 17, 2008 Multistrain virus dynamics with mutations: a global analysis (2007)

Patrick De, Sergei S. Pilyugin

We consider within-host virus models with n � 2 strains and allow mutation between the strains. If there is no mutation, a Lyapunov function establishes global stability of the steady state...

Bacterial gene regulation in diauxic and nondiauxic growth (2006)

Narang, Atul, Pilyugin, Sergei S.

When bacteria are grown on a mixture of two growth-limiting substrates, they exhibit a rich spectrum of substrate consumption patterns including diauxic growth, simultaneous consumption, and bistable...

How Does Cross-Reactive Stimulation Affect the Longevity of CD8+ T Cell Memory? (2006)

Vitaly V. Ganusov, Sergei S. Pilyugin, Rafi Ahmed, Rustom Antia

Immunological memory—the ability to “remember” previously encountered pathogens and respond faster upon re-exposure is a central feature of the immune response in vertebrates. The...

Pure competition of multiple species during mixed-substrate microbial growth: Extending the resource-based theory (2005)

Narang, Atul, Pilyugin, Sergei S.

The simultaneous growth of multiple microbial species is a problem of fundamental ecological interest. In media containing more than one growth-limiting substrate, multiple species can coexist. The...

Divergence Criterion for Generic Planar Systems (0000)

Pilyugin, Sergei S.

Flow and transport phenomena occurring within serpentine microchannels are analyzed for both two- and three-dimensional curvilinear configurations   The divergence criterion has been...

Models of immune memory: On the role of cross-reactive stimulation, competition, and homeostasis in maintaining immune memory

Antia, Rustom, Pilyugin, Sergei S., Ahmed, Rafi

There has been much debate on the contribution of processes such as the persistence of antigens, cross-reactive stimulation, homeostasis, competition between different lineages of lymphocytes, and...

How Does Cross-Reactive Stimulation Affect the Longevity of CD8+ T Cell Memory?

Ganusov, Vitaly V, Pilyugin, Sergei S, Ahmed, Rafi, Antia, Rustom

Immunological memory—the ability to “remember” previously encountered pathogens and respond faster upon re-exposure is a central feature of the immune response in vertebrates. The...

Models of immune memory: On the role of cross-reactive stimulation, competition, and homeostasis in maintaining immune memory

Antia, Rustom, Pilyugin, Sergei S., Ahmed, Rafi

There has been much debate on the contribution of processes such as the persistence of antigens, cross-reactive stimulation, homeostasis, competition between different lineages of lymphocytes, and...

How Does Cross-Reactive Stimulation Affect the Longevity of CD8+ T Cell Memory?

Ganusov, Vitaly V, Pilyugin, Sergei S, Ahmed, Rafi, Antia, Rustom

Immunological memory—the ability to “remember” previously encountered pathogens and respond faster upon re-exposure is a central feature of the immune response in vertebrates. The...

Divergence Criterion for Generic Planar Systems

Pilyugin, Sergei S.

Flow and transport phenomena occurring within serpentine microchannels are analyzed for both two- and three-dimensional curvilinear configurations   The divergence criterion has...