[HTML][HTML] A deeper understanding of system interactions can explain contradictory field results on pesticide impact on honey bees

D Breda, D Frizzera, G Giordano, E Seffin… - Nature …, 2022 - nature.com
While there is widespread concern regarding the impact of pesticides on honey bees, well-
replicated field experiments, to date, have failed to provide clear insights on pesticide …

Complete characterization of robust perfect adaptation in biochemical reaction networks

Y Hirono, A Gupta, M Khammash - arXiv preprint arXiv:2307.07444, 2023 - arxiv.org
Perfect adaptation is a phenomenon whereby the output variables of a system can maintain
certain values despite external disturbances. Robust perfect adaptation (RPA) refers to an …

Structural analysis in biology: A control-theoretic approach

F Blanchini, G Giordano - Automatica, 2021 - Elsevier
Despite their complexity, biological systems are able to endure huge parameter fluctuations
and survive in the most diverse environmental conditions. Mathematical tools from graph …

Polyhedral Lyapunov functions structurally ensure global asymptotic stability of dynamical networks iff the Jacobian is non-singular

F Blanchini, G Giordano - Automatica, 2017 - Elsevier
For a vast class of dynamical networks, including chemical reaction networks (CRNs) with
monotonic reaction rates, the existence of a polyhedral Lyapunov function (PLF) implies …

Optimal control of compartmental models: The exact solution

F Blanchini, P Bolzern, P Colaneri, G De Nicolao… - Automatica, 2023 - Elsevier
We formulate a control problem for positive compartmental systems formed by nodes
(buffers) and arcs (flows). Our main result is that, on a finite horizon, we can solve the …

[HTML][HTML] Inferring hidden causal relations between pathway members using reduced Google matrix of directed biological networks

J Lages, DL Shepelyansky, A Zinovyev - PLoS One, 2018 - journals.plos.org
Signaling pathways represent parts of the global biological molecular network which
connects them into a seamless whole through complex direct and indirect (hidden) crosstalk …

Aggregates of Monotonic Step Response systems: a structural classification

F Blanchini, CC Samaniego, E Franco… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Complex dynamical networks can often be analyzed as the interconnection of subsystems:
This allows us to considerably simplify the model and better understand the global behavior …

[HTML][HTML] Vertex results for the robust analysis of uncertain biochemical systems

F Blanchini, P Colaneri, G Giordano… - Journal of Mathematical …, 2022 - Springer
We consider the problem of assessing the sensitivity of uncertain biochemical systems in the
presence of input perturbations (either constant or periodic) around a stable steady state. In …

Model-free plant tuning

F Blanchini, G Fenu, G Giordano… - IEEE transactions on …, 2016 - ieeexplore.ieee.org
Given a static plant described by a differentiable input-output function, which is completely
unknown, but whose Jacobian takes values in a known polytope in the matrix space, this …

Sensitivity of chemical reaction networks: a structural approach. 3. Regular multimolecular systems

B Brehm, B Fiedler - Mathematical Methods in the Applied …, 2018 - Wiley Online Library
We present a systematic mathematical analysis of the qualitative steady‐state response to
rate perturbations in large classes of reaction networks. This includes multimolecular …