Results 61 to 70 of about 9,027 (185)

The maize mitogen‐activated protein kinase kinase kinase gene ZmMAPKKK45 is associated with multiple disease resistance

New Phytologist, EarlyView.
Summary Southern leaf blight (SLB), caused by the necrotrophic fungus Cochliobolus heterostrophus, is a major foliar disease of maize (Zea mays) world‐wide. A genome‐wide association study was performed to dissect the genetic basis of SLB resistance in maize. Functional validation was performed using mutant and transgenic analyses.
Tao Zhong, Bode Olukolu, Yang Bian, Shang Xue, Randall J. Wisser, Peter S. Ojiambo, James B. Holland, Qin Yang, Peter Balint‐Kurti   +8 more
wiley   +1 more source

Robust portfolio choice with limited attention

Electronic Research Archive, 2023
This paper investigates a robust portfolio selection problem with the agent's limited attention. The agent has access to a risk-free asset and a stock in a financial market.
Yue Ma, Zhongfei Li
doaj   +1 more source

Nationwide pediatric prehospital blood product use after motor vehicle crashes 2020–2023

Transfusion, EarlyView.
Abstract Background Previous studies suggest that in children with hemorrhagic shock following injury, prehospital blood transfusion improves survival. Quantifying and understanding the current demand for blood transfusion will help us improve the use and availability of prehospital blood for pediatric patients.
Chandler A. Annesi, Christine Carico, Daniel T. Lammers, N. Clay Mann, Matthew J. Levy, Pawan Acharya, Jan O. Jansen, Jeffrey D. Kerby, Robert T. Russell, John B. Holcomb, Zain G. Hashmi   +10 more
wiley   +1 more source

Dynamic Programming and Hamilton–Jacobi–Bellman Equations on Time Scales

Complexity, 2020
Bellman optimality principle for the stochastic dynamic system on time scales is derived, which includes the continuous time and discrete time as special cases.
Yingjun Zhu, Guangyan Jia
doaj   +1 more source

On the Dividend Strategies with Non-Exponential Discounting [PDF]

, 2013
In this paper, we study the dividend strategies for a shareholder with non-constant discount rate in a diffusion risk model. We assume that the dividends can only be paid at a bounded rate and restrict ourselves to the Markov strategies.
Wang, Rongming, Wei, Jiaqin, Zhao, Qian
core  

Stochastic control problems for systems driven by normal martingales

, 2008
In this paper we study a class of stochastic control problems in which the control of the jump size is essential. Such a model is a generalized version for various applied problems ranging from optimal reinsurance selections for general insurance models ...
Buckdahn, Rainer, Ma, Jin, Rainer, Catherine   +2 more
core   +1 more source

A General Dynamic Programming Approach to the Optimal Water Storage Management for Irrigation

Mathematical Methods in the Applied Sciences, Volume 49, Issue 3, Page 1987-1997, February 2026.
ABSTRACT This paper proposes a dynamic programming approach targeted to solve a natural resource problem of water storage management for irrigation in an environmentally and socially sustainable way. The problem we address in our formulation, focusing on the control of water storage in tanks, is based on assumptions that are less restrictive than those
Abdelkader Belhenniche, Danilo Pena, A. Pedro Aguiar, Maria do Rosário de Pinho   +3 more
wiley   +1 more source

Regular and exploratory resource extraction models considering sustainability

Results in Applied Mathematics
We formulate an optimal control problem of resource extraction, where a decision maker with sustainability concern dynamically controls the extraction rate. We assume harvesting to increase profit and incur a risk of resource depletion and aim to resolve
Hidekazu Yoshioka
doaj   +1 more source

A Review of Tipping Points and Precaution using HJB equations

Dynamic Games and Applications, 2023
AbstractThis paper analyzes three models in environmental economics with the property that tipping can occur in the ecological part of the model: the pollution control model where tipping suddenly shifts up the damage, the fishery model where tipping suddenly lowers the carrying capacity, and the Ramsey growth model where tipping suddenly decreases the
openaire   +2 more sources

Automatic determination of glymphatic flow with the DTI‐ALPS‐index along the principal axis system in native imaging space corrects for head and fiber orientation

Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 1110-1122, February 2026.
Abstract Purpose The aim of this work is to make the DTI along the perivascular space (DTI‐ALPS‐index) more robust with respect to region selection and the orientation of the head and fibers. We propose to address this matter by using the principal diffusion directions and an automated, atlas‐based region of interest (ROI) placement.
Ali Ajouz, Olav Jansen, Lynn Johann Frohwein, Svea Seehafer, Naomi Larsen, Jan‐Bernd Hövener   +5 more
wiley   +1 more source