Results 141 to 150 of about 2,251,534 (260)
Machine Learning Approaches to Forecast the Realized Volatility of Crude Oil Prices
ABSTRACT This paper presents an evaluation of the accuracy of machine learning (ML) techniques in forecasting the realized volatility of West Texas Intermediate (WTI) crude oil prices. We compare several ML algorithms, including regularization, regression trees, random forests, and neural networks, to several heterogeneous autoregressive (HAR) models ...
Talha Omer +3 more
wiley +1 more source
A Deep Learning Framework for Forecasting Medium‐Term Covariance in Multiasset Portfolios
ABSTRACT Forecasting the covariance matrix of asset returns is central to portfolio construction, risk management, and asset pricing. However, most existing models struggle at medium‐term horizons, several weeks to months, where shifting market regimes and slower dynamics prevail.
Pedro Reis, Ana Paula Serra, João Gama
wiley +1 more source
Unas veces más que otras se hace evidente la relación entre la arquitectura y las vestimentas. En este caso, un programa productivo normado que demanda un cierto volumen de aire y determinados movimientos de cargas plantea la pregunta sobre cómo cubrir ...
Claudio Blanco +2 more
doaj
Aloe vera‐derived biopolymers and nanoformulations enhance antimicrobial, antioxidant, and barrier functions in clean‐label edible coatings and films, whereas safety‐critical anthraquinone thresholds and regulatory constraints shape their translational potential.
Acharya Balkrishna +6 more
wiley +1 more source
IL‐6 from RTECs upregulates TGF‐β in macrophages, promoting fibroblast transdifferentiation. Isorhamnetin inhibits this effect. ABSTRACT Chronic kidney disease (CKD) is a major global health issue. Kidney fibrosis is a key mechanism leading to end‐stage renal disease.
Weifei Liang +8 more
wiley +1 more source
Under hyperglycemic conditions, mitochondrial dysfunction in retinal endothelial cells triggers excessive reactive oxygen species/reactive nitrogen species production, barrier protein degradation, and endothelial barrier breakdown in diabetic retinopathy.
Siyu Gui +12 more
wiley +1 more source
ABSTRACT Unsymmetrical dimethylhydrazine (UDMH), a highly toxic rocket propellant with known multiorgan effects, requires urgent characterization of its chronic low‐dose toxicity. Using an integrated approach including exploratory transcriptomics (n = 3/group) and metabolomic (n = 4/group) approaches in male Sprague–Dawley rats exposed to high‐dose ...
Fuzhou Liu +6 more
wiley +1 more source
Non-Invasive Detection of Prostate Cancer with Novel Time-Dependent Diffusion MRI and AI-Enhanced Quantitative Radiological Interpretation: PROS-TD-AI. [PDF]
Ramos B +11 more
europepmc +1 more source
This study quantifies stance‐phase joint angular excursions and angular utilization (AUI%) during walking in 182 terrestrial mammal species. Across mammals, total limb excursion during stance (TAE) decreases with increasing body mass, whereas AUI% remains broadly conserved, indicating similar proportional use of summed joint excursions to generate net ...
Paul Medina‐González
wiley +1 more source
GWAS on early sexual maturation across freshwater and seawater environments in domesticated Lochy strain of Atlantic salmon. [PDF]
Rivera P +7 more
europepmc +1 more source

