Results 51 to 60 of about 78,479 (285)

Discontinuous feedbacks and an application to the rocket car

open access: yes, 2022
In this work we consider nonlinear control systems. We review classical results in optimal control theory and more recent results concerning the equivalence of asymptotic controllability and the existence of stabilizing feedbacks.
Lucchese, Riccardo
core  

Modeled sensitivity of upper thermocline properties to tropical cyclone winds and possible feedbacks on the Hadley circulation [PDF]

open access: yes, 2010
The sensitivity of upper thermocline properties, and global climate, to tropical cyclone (TC) winds is examined using global ocean and atmosphere general circulation models.
Sriver, Ryan L., Huber, Matthew
core   +1 more source

Feedback Integrators [PDF]

open access: yesJournal of Nonlinear Science, 2016
A new method is proposed to numerically integrate a dynamical system on a manifold such that the trajectory stably remains on the manifold and preserves first integrals of the system. The idea is that given an initial point in the manifold we extend the dynamics from the manifold to its ambient Euclidean space and then modify the dynamics outside the ...
Dong Eui Chang   +2 more
openaire   +4 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Soil composition and plant genotype determine benzoxazinoid-mediated plant–soil feedbacks in cereals [PDF]

open access: yes, 2021
Plant–soil feedbacks refer to effects on plants that are mediated by soil modifications caused by the previous plant generation. Maize conditions the surrounding soil by secretion of root exudates including benzoxazinoids (BXs), a class of bioactive ...
Marcel G. A. van der Heijden   +22 more
core   +2 more sources

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Local ecosystem feedbacks and critical transitions in the climate [PDF]

open access: yes, 2011
Global and regional climate models, such as those used in IPCC assessments, are the best tools available for climate predictions. Such models typically account for large-scale land-atmosphere feedbacks.
Neutel, A.M.   +65 more
core   +1 more source

A coupled agent-based model to analyse human-drought feedbacks for agropastoralists in dryland regions

open access: yesFrontiers in Water, 2023
Drought is a persistent hazard that impacts the environment, people's livelihoods, access to education and food security. Adaptation choices made by people can influence the propagation of this drought hazard.
Ileen N. Streefkerk   +9 more
doaj   +1 more source

Structure‐forward targeting of claudins with synthetic binders

open access: yesFEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

Separating Adaptive Maintenance (Resilience) and Transformative Capacity of Social-Ecological Systems

open access: yesEcology and Society, 2013
Many rural communities are vulnerable social-ecological systems (SES) that must do more than become resilient to future environmental and social shocks: they must transform to achieve sustainability. We aimed first to conceptually explore the proposition
Samuel Wilson   +4 more
doaj   +1 more source

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