Results 71 to 80 of about 887,215 (364)

Inflation as an attractor in scalar cosmology

open access: yes, 2013
We study an inflation mechanism based on attractor properties in cosmological evolutions of a spatially flat Friedmann-Robertson-Walker spacetime based on the Einstein-scalar field theory. We find a new way to get the Hamilton-Jacobi equation solving the
Kim, Hyeong-Chan
core   +1 more source

FoxO1 signaling in B cell malignancies and its therapeutic targeting

open access: yesFEBS Letters, EarlyView.
FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac   +3 more
wiley   +1 more source

Global dynamics and bifurcation analysis of a host–parasitoid model with strong Allee effect

open access: yesJournal of Biological Dynamics, 2017
In this paper, we study the global dynamics and bifurcations of a two-dimensional discrete time host–parasitoid model with strong Allee effect. The existence of fixed points and their stability are analysed in all allowed parametric region.
Abdul Qadeer Khan   +2 more
doaj   +1 more source

Features of the System Approach at Studydefense-Industrial Complex of Ukraine

open access: yesMechanics and Advanced Technologies, 2020
The article considers one of the possible approaches to the analysis of the military-industrial complex of Ukraine from the point of view of a systematic approach.
I B Chepkov   +3 more
doaj   +1 more source

Stochastic inflation in phase space: is slow roll a stochastic attractor? [PDF]

open access: yes, 2017
An appealing feature of inflationary cosmology is the presence of a phase-space attractor, ``slow roll'', which washes out the dependence on initial field velocities.
J. Grain, V. Vennin
semanticscholar   +1 more source

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Attractor-like Dynamics in Belief Updating in Schizophrenia

open access: yesJournal of Neuroscience, 2018
Subjects with a diagnosis of schizophrenia (Scz) overweight unexpected evidence in probabilistic inference: such evidence becomes “aberrantly salient.” A neurobiological explanation for this effect is that diminished synaptic gain (e.g., hypofunction of ...
Rick A Adams   +4 more
semanticscholar   +1 more source

Anisotropic nonequilibrium hydrodynamic attractor [PDF]

open access: yes, 2017
We determine the dynamical attractors associated with anisotropic hydrodynamics (aHydro) and the DNMR equations for a 0+1d conformal system using kinetic theory in the relaxation time approximation. We compare our results to the non-equilibrium attractor
M. Strickland, J. Noronha, G. Denicol
semanticscholar   +1 more source

String attractors and combinatorics on words [PDF]

open access: yes, 2019
The notion of string attractor has recently been introduced in [Prezza, 2017] and studied in [Kempa and Prezza, 2018] to provide a unifying framework for known dictionary-based compressors.
Mantaci S.   +4 more
core  

Vanishing of local non-Gaussianity in canonical single field inflation

open access: yes, 2018
We study the production of observable primordial local non-Gaussianity in two opposite regimes of canonical single field inflation: attractor (standard single field slow-roll inflation) and non attractor (ultra slow-roll inflation).
Bravo, Rafael   +3 more
core   +1 more source

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