Results 71 to 80 of about 9,211 (158)

The Impact of Derivative Use on Default Probability Among Nonfinancial Firms: Evidence From European Firms

open access: yesJournal of Futures Markets, Volume 46, Issue 3, Page 562-581, March 2026.
ABSTRACT This paper examines how institutional environments shape the effectiveness of derivative hedging in reducing corporate default risk. Using hand‐collected data from non‐financial firms across nine European countries and various econometric methods to control for endogeneity, we provide novel evidence that the risk‐reducing benefits of ...
Amrit Judge, Khai Le, Kim Ly
wiley   +1 more source

Best Practices for Developing Linear Models With Multiple Explanatory Variables

open access: yesAdvanced Genetics, Volume 7, Issue 1, March 2026.
ABSTRACT Linear models, including t‐test, ANOVA, regression, ANCOVA, and generalized linear models, are foundational tools in statistical analysis. For large datasets, such as those involving tens of thousands of genes and millions of records, numerous advanced methods have been developed to improve both computational efficiency and reliability.
Baidu Li, Xinhai Li
wiley   +1 more source

Quantifying Transmembrane Water Exchange by Diffusion NMR Methods: From Yeast Cells to Optic Nerve Ex Vivo

open access: yesNMR in Biomedicine, Volume 39, Issue 3, March 2026.
A comparative analysis of the two most prevalent diffusion NMR methods for exchange measurements, CG‐PFG and FEXSY. Transmembrane water exchange is measured in yeast cells and porcine optic nerves, before and after fixation. Complementary Monte Carlo simulations are conducted.
Yuval Scher, Shlomi Reuveni, Yoram Cohen
wiley   +1 more source

Mechanistic two‐pathway modeling of substrate inhibition in lactic acid bacteria for enhanced fermentation control

open access: yesQuantitative Biology, Volume 14, Issue 1, March 2026.
Abstract Substrate inhibition in lactic acid bacteria (LAB) fermentation occurs when substrate concentration exceeds a critical value, leading to reduced cell growth and thus inefficient lactic acid production. Many efforts, including experimental and kinetic models, have been devoted to elucidate the possible mechanisms of substrate inhibition ...
Guoxi Zheng, Junwen Mao
wiley   +1 more source

Market Insurance and Risk Pooling in U.S. Crop Insurance

open access: yesAgricultural Economics, Volume 57, Issue 2, March 2026.
ABSTRACT A common assumption is that multiple‐peril crop insurance markets suffer from market failures, thus justifying government intervention in the form of premium subsidies, operating allowances, and reinsurance agreements. One prominent rationale for intervention involves geographic correlation in agricultural production which leads to systemic ...
Fan Fan   +3 more
wiley   +1 more source

Trade costs, infrastructure, and dynamics in a global economy

open access: yesInternational Journal of Economic Theory, Volume 22, Issue 1, Page 40-62, March 2026.
Abstract This study develops a dynamic two‐country model with trade costs linked to international infrastructure stock. With variable markups and firm heterogeneity, the welfare impact of trade costs depends on firms' cost distribution. Governments engage in a dynamic public investment game, leading to multiple steady states. The dynamic equilibrium of
Akihiko Yanase
wiley   +1 more source

Phase Topology Stability of an Optical Vortex via an Electrically Controlled Twist‐Planar Oriented Liquid Crystal Fresnel Lens

open access: yesAdvanced Optical Materials, Volume 14, Issue 5, 2 February 2026.
A simple and efficient method for determining the stability of optical vortices via Fourier transform using a conventional spherical lens is presented. The theoretical and experimental results demonstrate a practical approach to directly and unambiguously measure the magnitude and sign of the topological charge of a beam without altering an ...
Elena Melnikova   +5 more
wiley   +1 more source

AI‐enhanced Centiloid quantification of amyloid PET images

open access: yesAlzheimer's &Dementia, Volume 22, Issue 2, February 2026.
Abstract INTRODUCTION The Centiloid scale is the standard for amyloid (Aβ) PET quantification in research and clinical settings. However, variability between tracers and scanners remains a challenge. METHODS This study introduces DeepSUVR, a deep learning method to correct Centiloid quantification, by penalizing implausible longitudinal trajectories ...
Pierrick Bourgeat   +44 more
wiley   +1 more source

Solar‐Blind Ultraviolet Photodetectors Based on Two‐Dimensional Materials and Their Heterostructures

open access: yesAdvanced Physics Research, Volume 5, Issue 2, February 2026.
Solar‐blind ultraviolet photodetectors are crucial for diverse applications. This review comprehensively summarizes recent advances using two‐dimensional materials and their heterostructures, which offer tunable bandgaps, flexibility, and no lattice‐matching constraints.
Yu Lu   +7 more
wiley   +1 more source

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