Results 21 to 30 of about 1,195 (143)

Longer Asthma Duration Is Associated With Elevated Non‐T2 Sputum Biomarkers and Reduced T2 Inflammation in Severe Asthma

open access: yesAllergy, EarlyView.
Longer asthma duration is associated with increased airway non‐T2 inflammation and reduced airway and systemic T2 inflammation. Sputum CXCL9 is independently associated with duration and may predict a reduced poor response to anti‐IL‐4Rα therapy. Airway sampling and combined T2 and non‐T2 targeted strategies may be needed in long‐standing asthma. CXCL9,
Freda Yang   +298 more
wiley   +1 more source

Exploring Toothbrushing Duration Among Adults: A Systematic Review

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Aim There is a need for greater understanding of the average brushing time among individuals. Since the average brushing time remains unclear, this study involves a systematic review to assess this aspect of oral hygiene practices and how it has evolved over the years. Material and Methods The PubMed‐MEDLINE and Cochrane‐CENTRAL databases were
Tim M. J. A. Thomassen   +3 more
wiley   +1 more source

Functional Vašiček Model

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT We propose a new formulation of the Vašičekmodel within the framework of functional data analysis. We treat observations (continuous‐time rates) within a suitably defined trading day as a single statistical object. We then consider a sequence of such objects, indexed by day.
Piotr Kokoszka   +4 more
wiley   +1 more source

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

Random Carbon Tax Policy and Investment Into Emission Abatement Technologies

open access: yesMathematical Finance, EarlyView.
ABSTRACT We analyze the problem of a profit‐maximizing electricity producer, subject to carbon taxes, who decides on investments into CO2$\rm CO_2$ abatement technologies. We assume that the carbon tax policy is random and that the investment in the abatement technology is divisible, irreversible, and subject to transaction costs.
Katia Colaneri   +2 more
wiley   +1 more source

Relative Arbitrage Opportunities With Interactions Among N Investors

open access: yesMathematical Finance, EarlyView.
ABSTRACT The relative arbitrage portfolio outperforms a benchmark portfolio over a given time‐horizon with probability one. With market price of risk processes depending on the market portfolio and investors, this paper analyzes the multi‐agent optimization of relative arbitrage opportunities in the coupled system of market and wealth dynamics.
Tomoyuki Ichiba, Nicole Tianjiao Yang
wiley   +1 more source

A Model of Strategic Sustainable Investment

open access: yesMathematical Finance, EarlyView.
ABSTRACT We study a problem of optimal irreversible investment and emission reduction formulated as a nonzero‐sum dynamic game between an investor with environmental preferences and a firm. The game is set in continuous‐time on an infinite‐time horizon.
Tiziano De Angelis   +2 more
wiley   +1 more source

Regulatory Context and Bureaucratic Policy Making: Illustrations From Payment System Regulation in Brazil

open access: yesRegulation &Governance, EarlyView.
ABSTRACT This study investigates how bureaucratic strategies for structuring the policy environment shape regulatory outcomes, focusing on the extent to which agencies achieve their original policy preferences. Drawing on resource dependence theory and bureaucratic politics, we conceptualize the policy environment in two dimensions: internal ...
João Pedro Haddad   +1 more
wiley   +1 more source

Grocery Retail Location Patterns in Brno: Clustering, Inequality and Street Network Centrality

open access: yesTijdschrift voor Economische en Sociale Geografie, EarlyView.
Abstract This study aims to evaluate the spatial distribution and clustering patterns of grocery retail chains in Brno, Czech Republic, focusing on national and multinational stores. By employing Geographic Information Systems and advanced spatial analysis techniques, including the nearest neighbour method, standard deviational ellipse, Kernel density ...
Josef Kunc   +5 more
wiley   +1 more source

Likelihood Estimation for Stochastic Differential Equations with Mixed Effects

open access: yesScandinavian Journal of Statistics, Volume 53, Issue 3, Page 1061-1080, September 2026.
ABSTRACT Stochastic differential equations provide a powerful tool for modelling dynamic phenomena affected by random noise. When time series are observed for several experimental units, it is often the case that some of the parameters vary between the individual experimental units.
Fernando Baltazar‐Larios   +2 more
wiley   +1 more source

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