Results 31 to 40 of about 2,976 (195)

Do Commodity Prices and Energy Markets Drive Asymmetric Volatility in Biodiversity Finance?

Business Strategy and the Environment, EarlyView.
ABSTRACT This study examines symmetric and asymmetric volatility spillovers among biodiversity finance, commodity prices, and energy markets using daily data from 2019 to 2025. We apply the Diebold–Yilmaz time–domain connectedness model, Baruník–Křehlík frequency–domain decomposition, and an asymmetric spillover framework.
Ijaz Younis, Maqsood Ahmad, Himani Gupta, Kun Su, Waheed Ullah Shah   +4 more
wiley   +1 more source

Weibull-Modeled Impulsive Noise in Wireless Communication Systems: An Information-Geometric Approach

IEEE Open Journal of the Communications Society
Automatic modulation classification (AMC) enables cognitive wireless receivers to identify modulation formats under dynamic channel conditions. However, impulsive interference severely degrades accuracy when receiver preprocessing and neural network ...
Mehdi Rahimi, Samaneh Bidabadi, Mehdi Korki, Felipe A. P. de Figueiredo   +3 more
doaj   +1 more source

Sparse maximum likelihood estimation of regression models

Canadian Journal of Statistics, EarlyView.
Abstract For regression model selection and estimation, we study a small set of candidate models of maximum likelihood from which all information criteria such as the Akaike information criterion (AIC) and the Bayesian information criterion (BIC) choose their models.
Min Tsao
wiley   +1 more source

Multidimensional Cost Geometry

Axioms
In this paper, we study the geometric structure induced by the canonical reciprocal cost function and its natural n-dimensional extension. In logarithmic coordinates, the potential depends only on the linear combination S=α·t, and the associated Hessian ...
Jonathan Washburn, Milan Zlatanović, Philip Beltracchi   +2 more
doaj   +1 more source

Freshwater diversity responses to ecosystem ageing

Ecography, EarlyView.
Ecosystem age is a key driver of biodiversity patterns, yet its effects may arise from different temporal processes of ecosystem history. In reservoir ecosystems, community trajectories are shaped not only by succession following dam construction but also by recurrent management‐driven disturbances such as drawdowns.
Camille Leclerc, Maxime Logez, Christophe Laplace‐Treyture, Laurence Tissot, Aurélien Jamoneau, Christine Argillier   +5 more
wiley   +1 more source

Lower Bounds for the Integrated and Minimax Risks in Intrinsic Statistical Estimation: A Geometric Approach

Mathematics
In parametric statistics, it is well established that the canonical measures of estimator performance—such as bias, variance, and mean squared error—are inherently dependent on the parameterization of the model.
José Manuel Corcuera, José María Oller   +1 more
doaj   +1 more source

How Multiple Streams Influence Agenda‐Setting for Water Reuse in Swiss Substates

Environmental Policy and Governance, EarlyView.
ABSTRACT As climate change creates significant challenges for both the environment and society, potential mitigation and adaptation solutions are widely discussed. Yet, neither challenges nor their potential solutions automatically reach the political agenda or lead to a policy decision.
Magdalena A. Knabl, Katrin Pakizer, Manuel Fischer, Eberhard Morgenroth, Christian Binz   +4 more
wiley   +1 more source

Information theoretic waveform design with applications to adaptive‐on‐transmit radar

IET Radar, Sonar & Navigation
The marginal Fisher information (MFI) metric is used to design waveforms for the sake of informationally optimal adaptive‐on‐transmit radar operation. A framework for MFI waveform design is developed and the Polyphase‐Coded FM (PCFM) waveform model is ...
Daniel B. Herr, Pranav S. Raju, James M. Stiles   +2 more
doaj   +1 more source

Serum methylmalonic acid levels and epilepsy prevalence: Association analysis, exploratory mediation, and clinical corroboration

Epileptic Disorders, EarlyView.
Abstract Objective This study aimed to investigate the association between methylmalonic acid (MMA) and epilepsy prevalence and to explore potential inflammatory and nutritional pathways underlying this association. Methods This study included adults aged ≥ 20 years from the National Health and Nutrition Examination Survey (NHANES) 2011–2014.
Ningyu Wei, Ning Huang, Haipeng Chen, Rui Tang, Yuan Cheng, Xiang Zhang   +5 more
wiley   +1 more source

Prevalence of Medical and Psychiatric Comorbidities in Paediatric ARFID: A Meta‐Analysis

European Eating Disorders Review, EarlyView.
ABSTRACT Background Avoidant/Restrictive Food Intake Disorder (ARFID) is increasingly recognized as a complex paediatric feeding and eating disorder associated with significant medical and psychiatric burden. Methods This systematic review and meta‐analysis followed PRISMA guidelines and was prospectively registered in PROSPERO (CRD420251241490 ...
Nuria Blay Borch, Patricia Sanazario González, Rut Vila del Pozo, Juan David Duque‐Yemail, Laura Gisbert‐Gustemps, Imanol Setién‐Ramos, María Martínez‐Ramírez, Josep Antoni Ramos‐Quiroga, Jorge Lugo‐Marín   +8 more
wiley   +1 more source