Results 111 to 120 of about 34,945,907 (346)

A more stringent constraint on the mass ratio of binary neutron star merger GW170817

open access: yes, 2017
Recently, the LIGO-Virgo collaboration reported their first detection of gravitational wave (GW) signals from a low mass compact binary merger GW170817, which is most likely due to a double neutron star (NS) merger.
Ai, Shunke   +3 more
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

Design of structure with inerter system based on stochastic response mitigation ratio

open access: yes, 2018
An easy‐to‐use method for a practical design of single‐degree‐of‐freedom (SDOF) structures with inerter systems was developed. The method adopts the stochastic vibration response mitigation ratio as the design index, and expressions of the closed‐form ...
Chao Pan, Ruifu Zhang
semanticscholar   +1 more source

A Neural Network Model of 3-D Lightness Perception [PDF]

open access: yes, 1995
A neural network model of 3-D lightness perception is presented which builds upon the FACADE Theory Boundary Contour System/Feature Contour System of Grossberg and colleagues.
Pessoa, Luiz, Ross, William
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Chaotic Dynamics and Control of Discrete Ratio-Dependent Predator-Prey System

open access: yesDiscrete Dynamics in Nature and Society, 2017
This study examines the complexity of a discrete-time predator-prey system with ratio-dependent functional response. We establish algebraically the conditions for existence of fixed points and their stability.
Sarker Md. Sohel Rana
doaj   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Energy Storage Ratio in Off-Grid Renewable Energy Hydrogen Production System

open access: yes南方能源建设
[Objective] Off-grid new energy hydrogen production projects not only have significant emission reduction effects, but also serve as industrial demonstrations and driving forces.
Hang ZHOU   +6 more
doaj   +1 more source

Stable Carbon Isotope Ratio (δ13C) Measurement of Graphite Using EA-IRMS System

open access: yesMedžiagotyra, 2015
δ13C values in non-irradiated natural graphite were measured. The measurements were carried out using an elemental analyzer combined with stable isotope ratio mass spectrometer (EA-IRMS). The samples were prepared with ground and non-ground graphite, the
Andrius Garbaras   +2 more
doaj   +1 more source

A nonsmooth two-sex population model

open access: yes, 2014
This paper considers a two-dimensional logistic model to study populations with two genders. The growth behavior of a population is guided by two coupled ordinary differential equations given by a non-differentiable vector field whose parameters are the ...
Garibaldi, Eduardo, Sobottka, Marcelo
core   +1 more source

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