Results 171 to 180 of about 49,802 (245)

A Comparison of Realized Measures of Integrated Volatility: Price Duration‐ vs. Return‐Based Approaches

Journal of Forecasting, EarlyView.
ABSTRACT We study the accuracy of a variety of parametric price duration‐based realized variance estimators constructed via various financial duration models and compare their forecasting performance with the performance of various nonparametric return‐based realized variance estimators.
Björn Schulte‐Tillmann, Mawuli Segnon, Timo Wiedemann   +2 more
wiley   +1 more source

Multi-omics analysis revealed coordinated responses of rumen microbiota and epithelium of goats to dietary supplementation of glucosamine selenium. [PDF]

Anim Nutr
Liu T, Li S, Huang Y, Chu S, Huang X, Fu J, Zhu W, Ling Y.   +7 more
europepmc   +1 more source

A Deep Learning Framework for Forecasting Medium‐Term Covariance in Multiasset Portfolios

Journal of Forecasting, EarlyView.
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

Reinforcement Operator Learning (ROL): A hybrid DeepONet-guided reinforcement learning framework for stabilizing the Kuramoto-Sivashinsky equation. [PDF]

PLoS One
Ahmed N, Ashraful Babu M, Hossain MS, Fayz-Al-Asad M, Awlad Hossain M, Mortuza Ahmmed M, Mostafizur Rahman M, Mahmud M.   +7 more
europepmc   +1 more source

Immunomodulatory Effect of Tilapia (Oreochromis niloticus) Scale Gelatin Peptides in RAW264.7 Macrophages and Caenorhabditis elegans

Food Safety and Health, EarlyView.
ABSTRACT Currently, small‐molecular‐weight collagen peptides are a research hotspot in functional factor development due to their high bioavailability and diverse bioactivities. In this study, gelatin was extracted from tilapia (Oreochromis niloticus) scales by hot water extraction, followed by pepsin hydrolysis and ultrafiltration to obtain the < 3 ...
Ya‐ru Liu, Xu Guo, Shu‐tao Sun, Rui‐rui Zhang, Chao Liu, Ning‐yang Li   +5 more
wiley   +1 more source

Design of Adaptive LQR Control Based on Improved Grey Wolf Optimization for Prosthetic Hand. [PDF]

Biomimetics (Basel)
Ahmed K, Aly AA, Elhabib MO.
europepmc   +1 more source

The Role of Price‐Volatility Cojumps in Volatility Forecasting

Journal of Futures Markets, EarlyView.
ABSTRACT This paper investigates whether simultaneous jumps in prices and volatility improve volatility forecasting. Using up‐to‐date high‐frequency S&P 500 and VIX data, we identify price‐volatility cojumps at the intraday granularity and construct upside, downside, and asymmetric measures.
Kefu Liao
wiley   +1 more source

Airqtl dissects cell state-specific causal gene regulatory networks with efficient single-cell eQTL mapping. [PDF]

Nat Commun
Funk MW, Wang Y, Wang L.
europepmc   +1 more source

Polygenic risk score and prostate specific antigen predict death from prostate cancer in men with intermediate aggressive cancer

International Journal of Cancer, EarlyView.
What's New? Using 21 SNPs, two novel PRS were constructed and used to develop two new machine‐learning classifiers, one for the detection of prostate cancer and the other for the prediction of its aggressiveness and subsequent mortality. The classifier for disease detection is built using the PRS as the sole feature, whereas the one for disease ...
Leandro Rodrigues Santiago, Efthymios Ladoukakis, Dorota Scibior‐Bentkowska, Belinda Nedjai   +3 more
wiley   +1 more source

Effects of nicotinamide riboside supplementation during late gestation and lactation on sow performance, milk metabolome, and gut microbiome. [PDF]

J Anim Sci Biotechnol
Huang L, Yang X, Pan C, Zhang W, Li Y, Zhang R, Li H, Li Y, Zhuo Y, Jiang X, Che L, Lin Y, Xu S, Fang Z, Feng B, Wu, Hua L.   +16 more
europepmc   +1 more source