Results 151 to 160 of about 1,225,050 (328)

Managing the Threat of Subsidized Predators for a Threatened Shorebird

open access: yesAnimal Conservation, EarlyView.
Subsidized predators—native predators that have become more common due to human activities—challenge the persistence of many at‐risk prey species and require creative solutions beyond lethal predator control. In an 8‐year study, we placed small wire cages over western snowy plover nests that allow passage of plovers, but not their predators, and ...
R. R. Swaisgood   +4 more
wiley   +1 more source

On the Rates of Pointwise Convergence for Bernstein Polynomials

open access: yesResults in Mathematics
Abstract Let f be a real bounded function defined on the interval [0, 1], which is affine on $$(a,b)\subset [0,1]$$ ( a , b ) ⊂ [
José A. Adell   +2 more
openaire   +5 more sources

Pointwise estimates and Lp convergence rates to diffusion waves for p-system with damping

open access: yes, 2003
By introducing a new approximate Green function, we obtain the pointwise estimates on the solutions of Euler equations with linear frictional damping, from which we can deduce the optimal Lp(1⩽p⩽+∞) convergence rates to the nonlinear diffusion waves. The
Yang, Tong   +3 more
core   +1 more source

Enhancing generalizability theory with mixed‐effects models for heteroscedasticity in psychological measurement: A theoretical introduction with an application from EEG data

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Generalizability theory (G‐theory) defines a statistical framework for assessing measurement reliability by decomposing observed variance into meaningful components attributable to persons, facets, and error. Classic G‐theory assumes homoscedastic residual variances across measurement conditions, an assumption that is often violated in ...
Philippe Rast, Peter E. Clayson
wiley   +1 more source

On the Brezis–Lieb lemma without pointwise convergence

open access: yes, 2015
Brezis–Lieb lemma is an improvement of Fatou Lemma that evaluates the gap between the integral of a functional sequence and the integral of its pointwise limit.
Tintarev, Cyril   +3 more
core   +1 more source

Approximating multidimensionality with asymmetric unidimensional IRT models

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Unidimensional item response theory (IRT) models are widely used even in settings where assessment data exhibit subtle forms of multidimensionality. Recent empirical evidence suggests that when item difficulty is associated with dimensionality, asymmetric item characteristic curves (ICCs) emerge in the unidimensional approximation.
Xiangyi Liao   +5 more
wiley   +1 more source

A pointwise convergence for Sobolev space functions

open access: yesJournal of Mathematical Analysis and Applications, 2004
The author proves an analogue of Lebesgue's differentiation theorem for smooth functions: Theorem.
openaire   +1 more source

Computing Skinning Weights via Convex Duality

open access: yesComputer Graphics Forum, EarlyView.
We present an alternate optimization method to compute bounded biharmonic skinning weights. Our method relies on a dual formulation, which can be optimized with a nonnegative linear least squares setup. Abstract We study the problem of optimising for skinning weights through the lens of convex duality.
J. Solomon, O. Stein
wiley   +1 more source

A Note on Pointwise Convergence [PDF]

open access: yesProceedings of the American Mathematical Society, 1951
openaire   +2 more sources

SDFs from Unoriented Point Clouds using Neural Variational Heat Distances

open access: yesComputer Graphics Forum, EarlyView.
We propose a novel variational approach for computing neural Signed Distance Fields (SDF) from unoriented point clouds. We first compute a small time step of heat flow (middle) and then use its gradient directions to solve for a neural SDF (right). Abstract We propose a novel variational approach for computing neural Signed Distance Fields (SDF) from ...
Samuel Weidemaier   +5 more
wiley   +1 more source

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