Results 141 to 150 of about 6,534 (244)

Reinforcement Learning for Jump‐Diffusions, With Financial Applications

open access: yesMathematical 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

Croatian and Slovenian Mutual Funds and Bosnian Investments Funds (in English) [PDF]

open access: yes
The paper provides a stock-market-performance analysis for three emerging European stock markets: Croatia, Slovenia, and Bosnia and Herzegovina. Using monthly observations we perform a detailed study of the performance of Croatian and Slovenian mutual ...
Timotej Jagric   +3 more
core  

Physical Appearance Anxiety and Eating Disorders Symptomatology: A Systematic Review and Meta‐Analysis

open access: yesScandinavian Journal of Psychology, EarlyView.
ABSTRACT The present study aimed to assess the link between physical appearance anxiety (PAA) and eating disorder (ED) symptomatology by a meta‐analysis of existing literature. Eligible studies were searched across six electronic databases up until November 20, 2025. Pooled effect sizes (r) were calculated using random‐effects models.
Manuel Alcaraz‐Ibáñez   +4 more
wiley   +1 more source

Kimball's prudence and two-fund separation as determinants of mutual fund performance evaluation [PDF]

open access: yes
We consider investors with mean-variance-skewness preferences who aim at selecting one out of F different funds and combining it optimally with the riskless asset and direct stock holdings.
Gürtler, Marc, Breuer, Wolfgang
core  

An acoustic study on monophthongs in Central Australian Aboriginal English

open access: yesWorld Englishes, EarlyView.
Abstract We present an acoustic analysis of monophthongal vowel production in Central Australian Aboriginal English (CAAE), providing one of the first systematic examinations of this variety spoken by English‐as‐a‐first‐language (L1) speakers in Mparntwe/Alice Springs, Australia.
Yizhou Wang   +4 more
wiley   +1 more source

Prebiotic Bimuno® GOS reduces illness symptoms and supports gut barrier function and immunity after intermittent exercise in the heat

open access: yesExperimental Physiology, EarlyView.
Abstract Exercise in hot climates increases the risk of gastrointestinal (GI) disruption and respiratory illness. We investigated the effects of a 42 day prebiotic intervention on markers of intestinal epithelial injury, GI discomfort and immunity following football specific exercise in the heat and daily upper respiratory illness.
Connor J. Parker   +6 more
wiley   +1 more source

Implications of Quasi-Geometric Discounting on the Observable Sharpe Ratio [PDF]

open access: yes
In this paper, we study implications of quasi-geometric discounting for stochastic properties of asset returns that can be observed in the financial market data.
Wooheon Rhee, Tack Yun
core  

A deep learning‐enabled toolkit for the 3D segmentation of ventricular cardiomyocytes

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend 3D cardiomyocyte segmentation enables comprehensive analyses of myocardial microstructure in health and disease; however, it is technically demanding. We present an open‐source toolkit for this task, which reduces challenges associated with sample preparation, image restoration, segmentation and proofreading.
Joachim Greiner   +6 more
wiley   +1 more source

Artificial intelligence‐powered plant phenomics: Progress, challenges, and opportunities

open access: yesThe Plant Phenome Journal, Volume 9, Issue 1, December 2026.
Abstract Artificial intelligence (AI), a key driver of the Fourth Industrial Revolution, is being rapidly integrated into plant phenomics to automate sensing, accelerate data analysis, and support decision‐making in phenomic prediction and genomic selection.
Xu Wang   +12 more
wiley   +1 more source

Lithium Isotopic Analysis of Spodumene by Secondary Ion Mass Spectrometry

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 13, 15 July 2026.
ABSTRACT Rationale Lithium (Li) stable isotopes can provide insight into fluid–rock interaction and magmatic differentiation. Therefore, it is essential to develop an accurate and precise method to determine the Li isotope signature in spodumene.
Ryan Sharpe   +2 more
wiley   +1 more source

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