Results 51 to 60 of about 1,621,829 (188)

Mechanisms of bacterial and fungal community assembly in leaf miners during transition from natural to laboratory environments

open access: yesFrontiers in Microbiology
Environmental heterogeneity partly drives microbial succession in arthropods, while the microbial assembly mechanisms during environmental changes remain largely unknown.
Yu-Xi Zhu   +5 more
doaj   +1 more source

Geometric randomization of real networks with prescribed degree sequence

open access: yesNew Journal of Physics, 2019
We introduce a model for the randomization of complex networks with geometric structure. The geometric randomization (GR) model assumes a homogeneous distribution of the nodes in a hidden similarity space and uses rewirings of the links to find ...
Michele Starnini   +2 more
doaj   +1 more source

Approximately Normal Tests for Equal Predictive Accuracy in Nested Models [PDF]

open access: yes
Forecast evaluation often compares a parsimonious null model to a larger model that nests the null model. Under the null that the parsimonious model generates the data, the larger model introduces noise into its forecasts by estimating parameters whose ...
Kenneth D. West, Todd Clark
core   +3 more sources

Observational cosmology using characteristic numerical relativity

open access: yes, 2010
The characteristic formalism in numerical relativity, which has been developed to study gravitational waves, and the observer metric approach in observational cosmology both make use of coordinate systems based on null cones.
Bishop, N. T., van der Walt, P. J.
core   +1 more source

Null-text Guidance in Diffusion Models is Secretly a Cartoon-style Creator [PDF]

open access: green, 2023
Jing Zhao   +5 more
openalex   +1 more source

Optimized null model for protein structure networks. [PDF]

open access: yesPLoS ONE, 2009
Much attention has recently been given to the statistical significance of topological features observed in biological networks. Here, we consider residue interaction graphs (RIGs) as network representations of protein structures with residues as nodes ...
Tijana Milenković   +3 more
doaj   +1 more source

A consistent test of significance [PDF]

open access: yes, 1995
This paper presents a test of significance consistent under nonparametric alternatives. Under the null hypothesis, a regressor has no effect on the regression model.
Delgado, Miguel A.   +1 more
core   +1 more source

Testing Composite Null Hypothesis Based on $S$-Divergences

open access: yes, 2015
We present a robust test for composite null hypothesis based on the general $S$-divergence family. This requires a non-trivial extension of the results of Ghosh et al.~(2015).
Basu, Ayanendranath, Ghosh, Abhik
core   +1 more source

How do plant communities and flower visitors relate? A case study of semi-natural xerothermic grasslands

open access: yesActa Societatis Botanicorum Poloniae, 2013
The paper examines the relationships between the species composition of flower visitors and plants in the semi-natural xerothermic grasslands in southern and central Poland.
Damian Chmura   +2 more
doaj   +1 more source

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