Results 101 to 110 of about 115,920 (230)

Neimark-Sacker-Turing Instability and Pattern Formation in a Spatiotemporal Discrete Predator-Prey System with Allee Effect

Discrete Dynamics in Nature and Society, 2018
A spatiotemporal discrete predator-prey system with Allee effect is investigated to learn its Neimark-Sacker-Turing instability and pattern formation.
Huayong Zhang, Xuebing Cong, Tousheng Huang, Shengnan Ma, Ge Pan   +4 more
doaj   +1 more source

Do Institutions Make Street‐Level Bureaucrats Prosocial? Agent‐Based Evidence Shows That New Public Management Does Not

European Policy Analysis, EarlyView.
ABSTRACT Does street‐level bureaucrats' (SLBs) willingness to sacrifice their own self‐interests to meet the needs of their clients vary depending on their contexts? To date, it has been very challenging to empirically examine how SLBs who have different orientations toward social values might act in different institutional and administrative contexts.
Nissim Cohen, Teddy Lazebnik
wiley   +1 more source

Bifurcation, Chaos, and Pattern Formation for the Discrete Predator-Prey Reaction-Diffusion Model

Discrete Dynamics in Nature and Society, 2019
In this paper, a discrete predator-prey system with the periodic boundary conditions will be considered. First, we get the conditions for producing Turing instability of the discrete predator-prey system according to the linear stability analysis.
Lili Meng, Yutao Han, Zhiyi Lu, Guang Zhang   +3 more
doaj   +1 more source

A hybrid discrete-continuum approach to model Turing pattern formation

Mathematical Biosciences and Engineering, 2020
Since its introduction in 1952, with a further refinement in 1972 by Gierer and Meinhardt, Turing's (pre-)pattern theory (the chemical basis of morphogenesis) has been widely applied to a number of areas in developmental biology, where evolving cell and ...
Fiona R. Macfarlane, Mark A. J. Chaplain, Tommaso Lorenzi   +2 more
doaj   +1 more source

Work Has Changed, Has HRM? Designing for the Distributed, Fragmented, and Fluid Era

Human Resource Management, EarlyView.
ABSTRACT This paper addresses the growing misalignment between traditional human resource management (HRM) systems and the realities of distributed, fluid, and fragmented work. To address this issue, we introduce the FLUID‐HRM framework—a layered design architecture that reconfigures core HRM domains (resourcing, rewards, development, relations, work ...
Černe Matej, Lamovšek Amadeja
wiley   +1 more source

Dynamics of a Diffusive Predator-Prey Model with Allee Effect on Predator

Discrete Dynamics in Nature and Society, 2013
The reaction-diffusion Holling-Tanner prey-predator model considering the Allee effect on predator, under zero-flux boundary conditions, is discussed. Some properties of the solutions, such as dissipation and persistence, are obtained.
Xiaoqin Wang, Yongli Cai, Huihai Ma
doaj   +1 more source

Noise–Seeded Developmental Pattern Formation in Filamentous Cyanobacteria

Life, 2018
Under nitrogen-poor conditions, multicellular cyanobacteria such as Anabaena sp. PCC 7120 undergo a process of differentiation, forming nearly regular, developmental patterns of individual nitrogen-fixing cells, called heterocysts, interspersed between ...
Rinat Arbel-Goren, Francesca Di Patti, Duccio Fanelli, Joel Stavans   +3 more
doaj   +1 more source

Comparison of Auto‐Contouring Tools for Delineation of Normal Organs at Risk in Paediatric Patients Undergoing Radiotherapy

Journal of Medical Radiation Sciences, EarlyView.
Contouring organs at risk (OARs) manually in paediatric patients undergoing cranial‐spinal radiation therapy (CSI) is a time‐consuming, labour‐intensive task. This study aims to assess the accuracy and clinical acceptability of auto‐contours produced by the Siemens DirectORGANS auto‐contouring software on paediatric patients receiving CSI treatment ...
Isabel Cant, Jonathan Sykes, Yolanda Surjan, Rachael Beldham‐Collins, Laura Murphy, John Fernandez, Alison Salkeld   +6 more
wiley   +1 more source

Should Dermatologists Recommend Direct‐to‐Consumer App‐Based Remote Diagnostics? An Ethical Analysis

JEADV Clinical Practice, EarlyView.
ABSTRACT Background Dermatology patients still face barriers in accessing timely specialist care. As direct‐to‐consumer (DTC) apps for remote dermatological diagnostics proliferate, guidance is lacking. While promising efficiency and efficacy, their clinical—and ethical—legitimacy is not yet well established.
Sonja Mathes, Sebastian Seurig, Theresa Willem, Marta Dechant, Stephan Traidl, Mina Kang, Pedro Marques Pinto, Annette Binder, Tilo Biedermann, Ulf Darsow   +9 more
wiley   +1 more source

A Nonlinear Cross-Diffusion Model for Disease Spread: Turing Instability and Pattern Formation

Mathematics
In this article, we propose a novel nonlinear cross-diffusion framework to model the distribution of susceptible and infected individuals within their habitat using a reduced SIR model that incorporates saturated incidence and treatment rates.
Ravi P. Gupta, Arun Kumar, Shristi Tiwari   +2 more
doaj   +1 more source