Results 111 to 120 of about 16,345 (198)

Combination of In Ovo Nutritional Components Improves Embryonic Development, Growth Performance, and Gut Health in Broiler Chickens

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT This study evaluated the effects of intra‐amniotic administration of combined energy, amino acid, and vitamin sources on embryonic development, post‐hatch growth performance, and intestinal health in broiler chickens. On Day 18 of incubation, 460 fertile Ross 308 eggs were allocated to four groups: non‐injected negative control (NC), saline ...
Derya Yeşilbağ, Fulya Odabaşi Erbay, Ender Deniz Asmaz, Berrin Zik, Artun Yibar, Hilmi Can Acar, Engin Erbay, Kadir Yeşilbağ   +7 more
wiley   +1 more source

Tackling nonlinear price impact with linear strategies

Mathematical Finance, Volume 35, Issue 2, Page 422-440, April 2025.
Abstract Empirical studies in various contexts find that the price impact of large trades approximately follows a power law with exponent between 0.4 and 0.7. Yet, tractable formulas for the portfolios that trade off predictive trading signals, risk, and trading costs in an optimal manner are only available for quadratic costs corresponding to linear ...
Xavier Brokmann, David Itkin, Johannes Muhle‐Karbe, Peter Schmidt   +3 more
wiley   +1 more source

The Health of Nations Fund: Financing global drug development. [PDF]

PLOS Glob Public Health
Cho J, Singh M, Zhao C, Chaudhuri SE, Lo AW.   +4 more
europepmc   +1 more source

Reinforcement Learning for Jump‐Diffusions, With Financial Applications

Mathematical Finance, EarlyView.
ABSTRACT We study continuous‐time reinforcement learning (RL) for stochastic control in which system dynamics are governed by jump‐diffusion processes. We formulate an entropy‐regularized exploratory control problem with stochastic policies to capture the exploration–exploitation balance essential for RL.
Xuefeng Gao, Lingfei Li, Xun Yu Zhou
wiley   +1 more source

Integrating macroeconomic and technical indicators into forecasting the stock market: a hybrid approach for efficient feature selection. [PDF]

Sci Rep
Nabil A, Barakat S, Aboelfetouh A, Elhishi S.   +3 more
europepmc   +1 more source

On the Exact Limiting Distribution of a Volatility Target Index

Mathematical Finance, EarlyView.
ABSTRACT Assuming a lognormal distribution for the underlying risky asset, we study the limiting distribution of a volatility target index as the rebalancing time step approaches zero. Two limit theorems (a strong law of large numbers and a central limit theorem) are established, and as an application, the exact limiting distribution is derived.
Xuan Liu, Michel Gauthier
wiley   +1 more source

Intelligent system for portfolio optimization for novel volatility forecasting using machine learning. [PDF]

Sci Rep
Biswas T, Dey A, Mandal G, Ghosh N.
europepmc   +1 more source

Dual mechanisms give rise to biphasic stomatal opening in onion

New Phytologist, EarlyView.
Anisotropic guard cell wall stiffness enhances onion stomatal pore opening by increasing guard cell arc length. Summary Stomata are controllable micropores on the leaf surface that regulate gas exchange and water loss. Pore aperture adjustment is a mechanical process whereby changes in guard cell turgor drive changes in cell shape, resulting in ...
Melissa Tomkins, Matthew J. Wilson, Jodie V. Armand, Nathanael Y. H. Tan, Briony Parker, Julie E. Gray, Andrew J. Fleming, Richard J. Morris, Richard S. Smith   +8 more
wiley   +1 more source

An alternative strategy for balancing profit maximization and risk reduction. [PDF]

PLoS One
El Khatib Y, Mukhamedova F.
europepmc   +1 more source

Goshawk Genomics: Genome Wide Single Nucleotide Polymorphisms (SNPs) Confirm Species Status of Astur gentilis and Astur atricapillus

Zoologica Scripta, EarlyView.
ABSTRACT The Astur [gentilis] superspecies comprising five species has a long record of taxonomic debate. Recent evidence based on mitochondrial data, limited genomic data and bioacoustics suggested a Nearctic‐Palearctic split of the former Holarctic species Astur gentilis, leading to a taxonomic revision of classifying Palearctic Astur gentilis and ...
Florian Kunz, Min Chai, Martin Schwentner, Frank Emmanuel Zachos, Martin Kapun, Elisabeth Haring   +5 more
wiley   +1 more source