Results 271 to 280 of about 210,378 (309)

The Information Content of Overnight Information for Volatility Forecasting: Evidence From China's Stock Market

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT Using overnight volatility as the proxy for overnight information, this paper models future Chinese stock market realized range–based volatility (RRV) within a class of heterogeneous autoregressive models augmented by this proxy. We confirm the important role of overnight information in volatility forecasting models with strong evidence from ...
Yi Zhang, Long Zhou, Zhidong Liu
wiley   +1 more source

Enhancing Efficiency in Double‐Pipe Heat Exchangers: A Detailed Review of NanoFluids and Their Impact on Thermal Performance

open access: yesHeat Transfer, EarlyView.
ABSTRACT This study reviews recent advances in using nanofluids to enhance double‐pipe heat exchanger (DPHE) efficiency. The review examines several types of nanofluids, that is, water‐based graphene oxide and CuO–water nanofluids, assessing their effectiveness under different operating conditions, including inlet temperature and nanoparticle volume ...
Farhan Lafta Rashid   +8 more
wiley   +1 more source

Entropy Generation Analysis due to Permeable Exponential Stretching in Boundary Layer Flows

open access: yesHeat Transfer, EarlyView.
ABSTRACT Entropy generation represents the irreversible loss of useful energy in thermal–fluid systems, directly reducing efficiency in applications, such as microelectronics cooling, nanofluid‐based heat exchangers, and polymer processing. This study investigates entropy generation in a two‐phase viscoelastic nanofluid flow over a permeable ...
Khodani Sherrif Tshivhi   +1 more
wiley   +1 more source

Major Conundrums and Possible Solutions in DeFi Insurance

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT This paper empirically explores the early development of insurance projects in the decentralised finance (DeFi) industry, which is based on disruptive technologies like blockchain and smart contracts. A brief history of DeFi is narrated, stressing four risks of DeFi (volatility risk, cyberattack risk, liquidity risk, and regulation risk) and ...
Peng Zhou, Ying Zhang
wiley   +1 more source

Why Homoscleromorph Sponges Have Ciliated Epithelia: Evidence for an Ancestral Role in Mucociliary Driven Particle Flux

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Epithelia are typically ciliated, except in sponges. Of all Porifera only Homoscleromorphs have motile cilia on their epithelia. Our data highlight the presence of cilia and mucociliary particle transport as a common feature of metazoa and a secondary loss in other sponge lineages.
Veronica L. Price   +9 more
wiley   +1 more source

Integral representation of generalized grey Brownian motion. [PDF]

open access: yesStochastics (Abingdon), 2019
Bock W, Desmettre S, da Silva JL.
europepmc   +1 more source

Impact of Diffusion‐Weighted Magnetic Resonance Imaging Parameters on Diagnostic Accuracy for Thyroid Nodules: A Systematic Review and Meta‐Analysis

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Surgery is the gold standard to differentiate benign from malignant thyroid nodules, but it is invasive and often unnecessary in indeterminate cases. Diffusion‐Weighted MRI (DW‐MRI) has emerged as a promising, non‐invasive tool, though its accuracy and the impact of acquisition parameters remain unclear.
Caterina Giannitto   +13 more
wiley   +1 more source

Multi‐scale maternal behavioral responses by white‐tailed deer to coyote predation risk

open access: yesThe Journal of Wildlife Management, EarlyView.
In the piedmont region of the southeastern US, white‐tailed deer adjust maternal care strategies in response to variation in risk of encountering coyotes. In areas frequented by coyotes, adult female deer (i.e., does) increase their use of space, likely to avoid drawing coyotes to the location where a fawn is hidden.
Michael S. Muthersbaugh   +7 more
wiley   +1 more source

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