Results 51 to 60 of about 2,641,244 (300)

Global dynamics and optimal harvesting in a stochastic two-predators one-prey system with distributed delays and Lévy noise

Journal of Biological Dynamics, 2020
In this paper, we first investigate a stochastic two-predators one-prey model with Lévy noise and distributed delays. The global dynamical behaviour is discussed.
Nafeisha Tuerxun, Xamxinur Abdurahman, Zhidong Teng   +2 more
doaj   +1 more source

Identifying Patterns of Hospitalizations Among Childhood Cancer Survivors: A Population‐Based Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Childhood cancer survivors (CCSs) experience more hospitalizations than the general population. We aimed to identify distinct hospitalization patterns among Queensland CCSs and the associated characteristics. Methods Cases (aged ≤14 years) diagnosed between 1995 and 2019 while residents of Queensland were identified through the ...
Hai Pham, Teyl Engstrom, Peter Baade, Natalie Bradford, Sarah Pont, Louise Marquart‐Wilson, Natasha Nassar, Jason D. Pole   +7 more
wiley   +1 more source

Angiogenesis model with Erlang distributed delays

Mathematical Biosciences and Engineering, 2017
We consider the model of angiogenesis process proposed by Bodnar and Foryś (2009) with time delays included into the vessels formation and tumour growth processes. Originally, discrete delays were considered, while in the present paper we focus on distributed delays and discuss specific results for the Erlang distributions.
Bodnar, Marek, Attia, Emad, Foryś, Urszula   +2 more
openaire   +4 more sources

Unsolved problem about stability of stochastic difference equations with continuous time and distributed delay

Modern Stochastics: Theory and Applications
Despite the fact that the theory of stability of continuous-time difference equations has a long history, is well developed and very popular in research, there is a simple and clearly formulated problem about the stability of stochastic difference ...
Leonid Shaikhet
doaj   +1 more source

Impact of Initial Treatment Setting on Survival in Relapsed Pediatric and AYA Bone Sarcomas: A Secondary Analysis of a Prospective Clinical Trial

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Outcomes in relapsed or refractory pediatric and AYA bone sarcomas remain poor, and the impact of early referral to specialized sarcoma centers on survival is unclear. Early centralization of care may improve local and systemic treatment quality, but evidence in this population is limited.
Justyna Antoniuk‐Majchrzak, Katarzyna Bilska, Tomasz Koziński, Jadwiga Węcławek‐Tompol, Dorota Sega‐Pondel, Radosław Chaber, Wanda Badowska, Katarzyna Rosłan, Hanna Koseła‐Paterczyk, Anna Raciborska   +9 more
wiley   +1 more source

On the approximation of distributed-delay control laws [PDF]

Systems & Control Letters, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Delay-Adaptive Distributed Stochastic Optimization

Proceedings of the AAAI Conference on Artificial Intelligence, 2020
In large-scale optimization problems, distributed asynchronous stochastic gradient descent (DASGD) is a commonly used algorithm. In most applications, there are often a large number of computing nodes asynchronously computing gradient information. As such, the gradient information received at a given iteration is often stale.
Zhaolin Ren, Zhengyuan Zhou, Linhai Qiu, Ajay Deshpande, Jayant Kalagnanam   +4 more
openaire   +3 more sources

Spiking Activity of a LIF Neuron in Distributed Delay Framework

International Journal of Interactive Multimedia and Artificial Intelligence, 2016
Evolution of membrane potential and spiking activity for a single leaky integrate-and-fire (LIF) neuron in distributed delay framework (DDF) is investigated.
Saket Kumar Choudhary, Karan Singh, Vijender Kumar Solanki   +2 more
doaj  

Exploring Thermoelastic Effects in Damped Bresse Systems with Distributed Delay

Mathematics
In this work, we consider the one-dimensional thermoelastic Bresse system by addressing the aspects of nonlinear damping and distributed delay term acting on the first and the second equations.
Abdelbaki Choucha, Djamel Ouchenane, Safa M. Mirgani, Eltigan I. Hassan, A. H. A. Alfedeel, Khaled Zennir   +5 more
doaj   +1 more source

A Lyapunov functional for a system with both lumped and distributed delay

Archives of Control Sciences, 2017
In the paper construction of a Lyapunov functional for time delay system with both lumped and distributed delay is presented. The Lyapunov functional is determined by means of the Lyapunov matrix.
Duda Jozef
doaj   +1 more source