Results 41 to 50 of about 139,067 (282)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Generalized Glauber Dynamics for Inference in Biology

open access: yesPhysical Review X, 2023
Large interacting systems in biology often exhibit emergent dynamics, such as coexistence of multiple timescales, manifested by fat tails in the distribution of waiting times. While existing tools in statistical inference, such as maximum entropy models,
Xiaowen Chen   +5 more
doaj   +1 more source

Robust persistence and permanence of polynomial and power law dynamical systems

open access: yes, 2017
A persistent dynamical system in $\mathbb{R}^d_{> 0}$ is one whose solutions have positive lower bounds for large $t$, while a permanent dynamical system in $\mathbb{R}^d_{> 0}$ is one whose solutions have uniform upper and lower bounds for large $t ...
Brunner, James D., Craciun, Gheorghe
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

On Dynamics of a class taken from Quadratic Stochastic Operators

open access: yesJournal of Basic and Applied Research in Biomedicine, 2022
The Quadratic dynamical systems considered as an important source of analysis for the study of dynamical properties and modeling in various fields. A quadratic stochastic operator (in short QSO) is usually used to present the time evolution of species ...
Izzat Qaralleh
doaj   +2 more sources

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Time Window Determination for Inference of Time-Varying Dynamics: Application to Cardiorespiratory Interaction

open access: yesFrontiers in Physiology, 2020
Interacting dynamical systems abound in nature, with examples ranging from biology and population dynamics, through physics and chemistry, to communications and climate.
Dushko Lukarski   +5 more
doaj   +1 more source

The Internal Model Principle for Biomolecular Control Theory

open access: yesIEEE Open Journal of Control Systems, 2023
The well-known Internal Model Principle (IMP) is a cornerstone of modern control theory. It stipulates the necessary conditions for asymptotic robustness of disturbance-prone dynamical systems by asserting that such a system must embed a subsystem in a ...
Ankit Gupta, Mustafa Khammash
doaj   +1 more source

APPROXIMATE BAYESIAN PARAMETER INFERENCE FOR DYNAMICAL SYSTEMS IN SYSTEMS BIOLOGY

open access: yesContributions, Section of Natural, Mathematical and Biotechnical Sciences, 2017
A b s t r a c t: This paper proposes to use approximate instead of exact stochastic simulation algorithms for approximate Bayesian parameter inference of dynamical systems in systems biology. It first presents the mathematical framework for the description of systems biology models, especially from the aspect of a stochastic formulation as opposed to ...
Jovan Tanevski   +2 more
openaire   +2 more sources

Respectful Modeling: Addressing Uncertainty in Dynamic System Models for Molecular Biology [PDF]

open access: yesTrends in Biotechnology, 2017
Although there is still some skepticism in the biological community regarding the value and significance of quantitative computational modeling, important steps are continually being taken to enhance its accessibility and predictive power. We view these developments as essential components of an emerging 'respectful modeling' framework which has two ...
Areti Tsigkinopoulou   +2 more
openaire   +2 more sources

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