Results 81 to 90 of about 26,149 (292)

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

open access: yesAdvanced Science, EarlyView.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan   +20 more
wiley   +1 more source

On asymptotically periodic-like motions in flows

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2018
We study three properties associated to the recurrence of orbits in flows: asymptotic periodicity, positive asymptotic periodicity and G-asymptotic periodicity. We determine which implications between these notions hold and which do not. We also show how
Karol Gryszka
doaj   +1 more source

Asymptotically stabilizing feedback controls

open access: yesJournal of Differential Equations, 1991
The paper deals with the problem of the existence and construction of an asymptotically stabilizing feedback control for the zero solution of an \(n\)-dimensional, single-input, affine system: \(x=X_ 0(x)+uX_ 1(x)\), \(X_ 0(0)=0\), \(X_ 1(0)\neq 0\) where \(X_ 0(x)=\sum^ n_{i=2}a_ i(x){\partial\over \partial x_ i}\) and \(X_ 1=\partial/\partial x_ 1\).
openaire   +2 more sources

Rib‐Reinforced Ultralight and Ultra‐Strong Shell Lattices

open access: yesAdvanced Science, EarlyView.
This study thoroughly reveals the relation between the curvature and stress direction of triply periodic minimal surface (TPMS) thin shell lattices and proposes a novel rib reinforcement design strategy to incorporate ribs along the line of asymptotes (LOA) and the line of principal curvatures (LOC) to enhance the strength of ultralight TPMS shell ...
Winston Wai Shing Ma   +6 more
wiley   +1 more source

Stability analysis of a fractional-order two-species facultative mutualism model with harvesting

open access: yesAdvances in Difference Equations, 2017
We present a fractional-order model of two-species facultative mutualism with harvesting. We investigate the stability of the equilibrium points of the model by using the linearization method for noncoexistence of equilibrium points and the Lyapunov ...
Nattakan Supajaidee, Sompop Moonchai
doaj   +1 more source

Achieving Chemical Accuracy in Cyclodextrin Host–Guest Binding via Integrative Atomistic Modelling

open access: yesAdvanced Science, EarlyView.
A generalizable computational framework is presented that overcomes long‐standing challenges in modelling cyclodextrin host‐guest binding by integrating host‐specific force‐field refinement, equilibrium enhanced sampling, nonequilibrium alchemical switching, convolution sampling of independent works, rigorous finite‐size corrections, and QM‐based ...
Xiaohui Wang   +7 more
wiley   +1 more source

Label‐Free and Immobilization‐Free Protein‐Binding Assays by Ultraviolet Transient Absorption Microscopy

open access: yesAdvanced Science, EarlyView.
A femtosecond UV pump–probe microscope resolves binding‐induced changes in protein excited‐state dynamics and converts these intrinsic contrasts into an equilibrium affinity readout. By probing tryptophan responses directly in solution, the approach enables quantitative determination of dissociation constants without labeling or immobilization ...
Jianghao Shen   +5 more
wiley   +1 more source

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