Results 71 to 80 of about 358,125 (307)

Topology‐Enabled Finite‐Band Absorption Framework Based on a Bioinspired Nested Dual‐Loop Architecture

open access: yesAdvanced Science, EarlyView.
A nuclear‐pore‐inspired nested dual‐loop architecture redistributes electromagnetic energy through coupled transport, confinement, and dissipation pathways. Integrated with Co/Fe3O4 dual‐magnetic composites and topology optimization, the 11‐mm‐thick absorber delivers continuous 2–40 GHz attenuation, raises finite‐band structural utilization to 82%, and
Shaokang Liu   +6 more
wiley   +1 more source

An asymptotic optimality result for the multiclass queue with finite buffers in heavy traffic

open access: yesStochastic Systems, 2015
For a multiclass G/G/1 queue with finite buffers, admission and scheduling control, and holding and rejection costs, we construct a policy that is asymptotically optimal in the heavy traffic limit.
Rami Atar, Mark Shifrin
doaj   +1 more source

Asymptotic properties of a goodness-of-fit test based on maximum correlations [PDF]

open access: yes
We study the efficiency properties of the goodness-of-fit test based on the Qn statistic introduced in Fortiana and Grané (2003) using the concepts of Bahadur asymptotic relative efficiency and Bahadur asymptotic optimality.
Aurea Grane, Anna V. Tchirina
core  

Tau Aggregate Imaging and Transcriptomics of Alzheimer's Disease Brain at Different Stages of Disease

open access: yesAdvanced Science, EarlyView.
The protein aggregates and gene expression in the middle temporal gyrus (MTG) and somatosensory cortex (SOM) of the postmortem brains of 13 Alzheimer's disease patients were studied in detail, revealing that small hyperphosphorylated tau aggregates increase with Braak stage driven by microglial inflammation.
Elizabeth A. English   +9 more
wiley   +1 more source

"An Optimal Modification of the LIML Estimation for Many Instruments and Persistent Heteroscedasticity" [PDF]

open access: yes
We consider the estimation of coefficients of a structural equation with many instrumental variables in a simultaneous equation system. It is mathematically equivalent to an estimating equation estimation or a reduced rank regression in the statistical ...
Naoto Kunitomo
core  

Seeing the Chemistry of Biomolecular Condensates: In Situ Mapping of Composition and Water Content

open access: yesAdvanced Science, EarlyView.
Raman hyperspectral imaging combined with spectral phasor analysis enables a label‐free quantification of proteins, polymers and water density within individual biomolecular condensates. By transforming complex vibrational fingerprints into intuitive compositional maps, the approach reveals the high water content and structural heterogeneity of ...
E. Sabri   +3 more
wiley   +1 more source

Optimal Comparison of Misspecified Moment Restriction Models under a Chosen Measure of Fit [PDF]

open access: yes
Suppose that the econometrician is interested in comparing two misspecified moment restriction models, where the comparison is performed in terms of some chosen measure of fit.
Marmer, Vadim, Otsu, Taisuke
core   +2 more sources

On optimality in intergenerational risk sharing [PDF]

open access: yes
This paper defines and studies optimality in a dynamic stochastic economy with finitely lived agents, and investigates the optimality properties of an equilibrium with or without sequentially complete markets.
Gabrielle Demange
core  

Sequential fixed width confidence intervals [PDF]

open access: yes, 2000
We consider the problem of constructing confidence intervals of fixed width d and confidence level γ for the success probability p in Bernoulli trials.
Asparouhov, Tihomir Zlatev
core   +1 more source

Asymptotics for Strassen’s optimal transport problem

open access: yesAnnales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2023
In this paper, we consider Strassen's version of optimal transport (OT) problem, which concerns minimizing the excess-cost probability (i.e., the probability that the cost is larger than a given value) over all couplings of two given distributions. We derive large deviation, moderate deviation, and central limit theorems for this problem.
openaire   +3 more sources

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