Results 61 to 70 of about 1,952,749 (256)

Characterization of water microbiota and their relationship with resident oysters during an oyster mortality event

Microbiology Spectrum
Microorganisms are vital for the health of marine invertebrates, and their assembly is driven by both deterministic and stochastic factors that regulate residents (innate to the host) and transients (from ambient water).
Mingkun Liu, Qingyuan Li, Wenwen Xu, Luping Wang, Fucun Wu, Lintao Tan, Li Li, Guofan Zhang   +7 more
doaj   +1 more source

On the Stochastic Dynamics of a Social Epidemics Model

Discrete Dynamics in Nature and Society, 2017
Alcohol abuse is a major social problem, which has caused a lot of damages or hidden dangers to the individual and the society. In this paper, with random factors of alcoholism considered in mortality rate of compartment populations, we formulate a ...
Xun-Yang Wang, Peng-Zhan Zhang, Qing-Shan Yang   +2 more
doaj   +1 more source

Entropy Measures for Stochastic Processes with Applications in Functional Anomaly Detection

Entropy, 2018
We propose a definition of entropy for stochastic processes. We provide a reproducing kernel Hilbert space model to estimate entropy from a random sample of realizations of a stochastic process, namely functional data, and introduce two approaches to ...
Gabriel Martos, Nicolás Hernández, Alberto Muñoz, Javier M. Moguerza   +3 more
doaj   +1 more source

Integrating Reinforcement Learning With Explainable Artificial Intelligence for Real‐Time Clinical Decision Support in Dynamic Healthcare Environments

Advanced Intelligent Systems, EarlyView.
A hybrid Reinforcement Learning–Explainable AI framework integrates SHAP and LIME explanations directly into a Deep Q‐Network inference loop for real‐time ICU decision support. Trained on 18 142 mechanically ventilated stays from the eICU database, the system attains 93.0% decision accuracy, 20% fewer errors than RL alone, and a 91% clinician trust ...
Jannatul Ferdaus Disha, MD Faiaz Zaman Dehan, Kazi Md. Tanvir Anzum   +2 more
wiley   +1 more source

Accounting for animal health in efficiency analysis: An application to Swedish dairy farms

American Journal of Agricultural Economics, EarlyView.
Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang, Enoch Owusu‐Sekyere, Karin Alvåsen, Helena Hansson   +3 more
wiley   +1 more source

Non mean reverting affne processes for stochastic mortality [PDF]

In this paper we use doubly stochastic processes (or Cox processes) in order to model the random evolution of mortality of an individual. These processes have been widely used in the credit risk literature in modelling default arrival, and in this ...
Elisa Luciano, Elena Vigna
core  

Developing a strain‐dependent susceptibility to hepatocellular carcinoma in a murine model based on histopathological evidence and genetic context

Animal Models and Experimental Medicine, EarlyView.
Using F1 (C57BL/6J/Smad4+/− X CC) mice, we found that partial loss of Smad4 promotes liver carcinogenesis in a strain‐dependent manner, highlighting the importance of genetic modifiers in tumor susceptibility. The use of Collaborative Cross mice provides a valuable platform for uncovering genotype‐specific cancer susceptibilities in preclinical ...
Osayd Zohud, Aysar Nashef, Imad Abu‐Elnaaj, Fuad A. Iraqi   +3 more
wiley   +1 more source

Stochastic Mortality, Macroeconomic Risks, and Life Insurer Solvency [PDF]

Motivated by a recent demographic study establishing a link between macroeconomic fluctuations and the mortality index kt in the Lee-Carter model, we assess the impact of macroeconomic fluctuations on the solvency of a life insurance company. Liabilities
Helmut Gründl, Katja Hanewald, Thomas Post   +2 more
core  

Pharmacometric evaluation of pre‐referral rectal artesunate in children with severe malaria

British Journal of Clinical Pharmacology, EarlyView.
Aims Parenteral artesunate is the preferred first‐line treatment for severe malaria. Pre‐referral rectal artesunate suppositories are recommended where parenteral treatment is inaccessible. In this study, we compared dihydroartemisinin exposure and model‐predicted early parasite clearance following rectal artesunate and intravenous artesunate in ...
Ayorinde Adehin, Marie A. Onyamboko, Caterina Fanello, Nicholas J. White, Nicholas P. J. Day, Richard M. Hoglund, Joel Tarning   +6 more
wiley   +1 more source

Estimation of Uncertainty in Mortality Projections Using State-Space Lee-Carter Model

Mathematics, 2020
The study develops alternatives of the classical Lee-Carter stochastic mortality model in assessment of uncertainty of mortality rates forecasts. We use the Lee-Carter model expressed as linear Gaussian state-space model or state-space model with ...
Rokas Gylys, Jonas Šiaulys
doaj   +1 more source