Results 151 to 160 of about 420,297 (269)

Stability Analysis of Navier-Stokes-Voigt Fluids in Porous Media with Slippery Effect. [PDF]

Nanomaterials (Basel)
Shi J, Zhang J, Liu Q, Ding Z, Zhang R.
europepmc   +1 more source

Revisiting EWMA in High‐Frequency‐Based Portfolio Optimization: A Comparative Assessment

Journal of Applied Econometrics, EarlyView.
ABSTRACT This paper compares the statistical and economic performance of state‐of‐the‐art high‐frequency (HF) based multivariate volatility models with a simpler, widely used alternative, the Exponentially Weighted Moving Average (EWMA) filter. Using over two decades of 100 U.S.
Laura Capera Romero, Anne Opschoor
wiley   +1 more source

Intelligent Spectrum Sensing for NOMA Systems: A Cost-Sensitive LightGBM Approach with Objective-Driven Learning. [PDF]

Sensors (Basel)
Srisomboon K, Pipanmekaporn L, Prayote A, Lee W.   +3 more
europepmc   +1 more source

Robust Tests of Forecast Accuracy for Factor‐Augmented Regressions With an Application to the Novel EA‐MD‐QD Dataset

Journal of Applied Econometrics, EarlyView.
ABSTRACT We present four novel tests of equal predictive accuracy and encompassing á Pitarakis (2023, 2025) for factor‐augmented regressions. Factors are estimated using cross‐section averages (CAs) of grouped series and our theoretical findings are empirically relevant: asymptotic normality, robustness to an overspecification of the number of factors,
Alessandro Morico, Ovidijus Stauskas
wiley   +1 more source

Thermomechanical load in a nonlocal rotating magneto-thermoelastic orthotropic material with Green Naghdi-III model. [PDF]

Sci Rep
Salah DM, Abd-Alla AM, El-Kabeir SMM, Bayones FS.   +3 more
europepmc   +1 more source

Correlations between appraisals, management strategies, and psychological stress among schoolchildren with ADHD—A pilot study

JCPP Advances, EarlyView.
Abstract Background Children with Attention‐Deficit/Hyperactivity Disorder (ADHD) encounter a range of difficulties in daily life. Guided by previous studies and theories, this pilot study examined whether distinct subgroups of children with ADHD could be identified based on their appraisals of the causes of their symptoms and the strategies they use ...
Noam Ringer, Adva Eichengreen
wiley   +1 more source

Smoothness and stability in the Alt-Phillips problem. [PDF]

Math Ann
Carducci M, Tortone G.
europepmc   +1 more source

The Role of Magnetic Resonance Spectroscopy (MRS), Diffusion‐Tensor‐Imaging (DTI) and Structural MRI in the Alzheimer's Disease and Mild Cognitive Impairment Diagnosis: A Review

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Alzheimer's disease (AD) is one of the most common neurological disorders affecting older adults, with approximately 7.2 million cases only in the United States. This number is projected to increase to 13.8 million in the United States by 2060, leading to increased expenditures for healthcare, long‐term care and hospice services. Consequently,
Valentina Zecca, Gianmauro Palombelli, Nicola Vanacore, Rossella Canese   +3 more
wiley   +1 more source

On Shape Optimization with Large Magnetic Fields in Two Dimensions. [PDF]

J Geom Anal
Lotoreichik V, Morin L.
europepmc   +1 more source

Mapping Multi‐Stakeholder Engagement: A Q Methodology in a Regional Project Management Scenario

Strategic Change, EarlyView.
ABSTRACT Research on project management describes the essence of projects involving multiple stakeholders, stressing the value derived from diverse work practices. However, this underestimates issues of counterproductive disagreements associated with diverse groups participating in a project.
Sheng Hu, Amon Simba
wiley   +1 more source