Results 41 to 50 of about 229,668 (202)

Apparent universality of 1/f spectra as an artifact of finite-size effects

open access: yesPhysical Review Research, 2023
Power spectral density scaling with frequency f as 1/f^{β} and β≈1 is widely found in natural and socioeconomic systems. Consequently, it has been suggested that such self-similar spectra reflect the universal dynamics of complex phenomena. Here, we show
M. A. Korzeniowska   +3 more
doaj   +1 more source

Scaling Analysis of the Site-Diluted Ising Model in Two Dimensions [PDF]

open access: yes, 2008
A combination of recent numerical and theoretical advances are applied to analyze the scaling behaviour of the site-diluted Ising model in two dimensions, paying special attention to the implications for multiplicative logarithmic corrections.
A. B. Harris   +9 more
core   +2 more sources

Self-Consistent Scaling Theory for Logarithmic-Correction Exponents [PDF]

open access: yesPhysical Review Letters, 2006
Multiplicative logarithmic corrections frequently characterize critical behaviour in statistical physics. Here, a recently proposed theory relating the exponents of such terms is extended to account for circumstances which often occur when the leading specific-heat critical exponent vanishes.
Kenna, R., Johnston, D. A., Janke, W.
openaire   +3 more sources

Correlation of the differential expression of PIK3R1 and its spliced variant, p55α, in pan‐cancer

open access: yesMolecular Oncology, EarlyView.
PIK3R1 undergoes alternative splicing to generate the isoforms, p85α and p55α. By combining large patient datasets with laboratory experiments, we show that PIK3R1 spliced variants shape cancer behavior. While tumors lose the protective p85α isoform, p55α is overexpressed, changes linked to poorer survival and more pronounced in African American ...
Ishita Gupta   +10 more
wiley   +1 more source

Measurement Invariance, Entropy, and Probability

open access: yesEntropy, 2010
We show that the natural scaling of measurement for a particular problem defines the most likely probability distribution of observations taken from that measurement scale.
D. Eric Smith, Steven A. Frank
doaj   +1 more source

Hölder continuity of singular parabolic equations with variable nonlinearity

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
In this paper we obtain the local Hölder regularity of the weak solutions for singular parabolic equations with variable exponents. The proof is based on DiBenedetto’s technique called intrinsic scaling; by choosing an appropriate geometry one can deduce
Bahja Hamid El
doaj   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

Mathematical model for logarithmic scaling of velocity fluctuations in wall turbulence

open access: yes, 2015
For wall turbulence, moments of velocity fluctuations are known to be logarithmic functions of the height from the wall. This logarithmic scaling is due to the existence of a characteristic velocity and to the nonexistence of any characteristic height in
Mouri, H.
core   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

open access: yesFEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill   +4 more
wiley   +1 more source

Scaling Behavior of Entanglement in Two- and Three-Dimensional Free Fermions

open access: yes, 2006
Exactly solving a spinless fermionic system in two and three dimensions, we investigate the scaling behavior of the block entropy in critical and non-critical phases.
G. Burkard   +9 more
core   +1 more source

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