Results 11 to 20 of about 157,187 (161)

Dynamics and Control of a Discrete Predator–Prey Model with Prey Refuge: Holling Type I Functional Response

Mathematical Problems in Engineering, Volume 2023, Issue 1, 2023., 2023
In this study, we examine the dynamics of a discrete‐time predator–prey system with prey refuge. We discuss the stability prerequisite for effective fixed points. The existence criteria for period‐doubling (PD) bifurcation and Neimark–Sacker (N–S) bifurcation are derived from the center manifold theorem and bifurcation theory.
Sarker Md. Sohel Rana, Md. Jasim Uddin, Sundarapandian Vaidyanathan   +2 more
wiley   +1 more source

Testing the influence of visual framing on engagement and pro‐environmental action

Conservation Science and Practice, Volume 4, Issue 10, October 2022., 2022
In an experiment in a museum, an exhibit featuring negatively framed environmental images more effectively engaged visitors and garnered pledges than an exhibit featuring positive images. There was not a significant difference in donations between the two exhibits.
Gabby Salazar, Martha C. Monroe, Megan Ennes, Jennifer Amanda Jones, Diogo Veríssimo   +4 more
wiley   +1 more source

Effects of physical exercise on the functionality of human nucleotidases: A systematic review

Physiological Reports, Volume 10, Issue 18, September 2022., 2022
Purinergic signaling represents a novel molecular adaptation in inflammatory, thrombotic, and vascular responses to the exercise. Acute and chronic protocols of exercise induce at least transitory adaptations in the functionality of human nucleotidases. The activity of nucleotidases may be linked to cardiometabolic parameters.
Cesar Eduardo Jacintho Moritz, Alexandra Ferreira Vieira, Denise de Melo‐Marins, Fabrício Figueiró, Ana Maria Oliveira Battastini, Alvaro Reischak‐Oliveira   +5 more
wiley   +1 more source

Paint It Black or Red: Serious Play in Brazil's Northeast

The Journal of Latin American and Caribbean Anthropology, Volume 27, Issue 1-2, Page 101-122, June 2022., 2022
Abstract This article analyzes a popular, folkloric dance drama in the small city, Laranjeiras, a thriving slave port for its first three centuries. Lambe‐sujo e Caboclinho, dating to the 19th century, depicts the practice of missionized Indigenous people engaged to capture and return fugitive slaves.
Jan Hoffman French
wiley   +1 more source

Mathematical Analysis of the Prey‐Predator System with Immigrant Prey Using the Soft Computing Technique

Discrete Dynamics in Nature and Society, Volume 2022, Issue 1, 2022., 2022
In this paper, a mathematical model for the system of prey‐predator with immigrant prey has been analyzed to find an approximate solution for immigrant prey population density, local prey population density, and predator population density. Furthermore, we present a novel soft computing technique named LeNN‐WOA‐NM algorithm for solving the mathematical
Naveed Ahmad Khan, Muhammad Sulaiman, Jamel Seidu, Fahad Sameer Alshammari, Chenguang Yang   +4 more
wiley   +1 more source

Routh–Hurwitz Stability and Quasiperiodic Attractors in a Fractional‐Order Model for Awareness Programs: Applications to COVID‐19 Pandemic

Discrete Dynamics in Nature and Society, Volume 2022, Issue 1, 2022., 2022
This work explores Routh–Hurwitz stability and complex dynamics in models for awareness programs to mitigate the spread of epidemics. Here, the investigated models are the integer‐order model for awareness programs and their corresponding fractional form.
Taher S. Hassan, E. M. Elabbasy, A.E. Matouk, Rabie A. Ramadan, Alanazi T. Abdulrahman, Ismoil Odinaev, Binxiang Dai   +6 more
wiley   +1 more source

Qualitative Analysis of a Hyperchaotic Lorenz‐Stenflo Mathematical Model via the Caputo Fractional Operator

Journal of Function Spaces, Volume 2022, Issue 1, 2022., 2022
The Lorenz‐Stenflo mathematical model describes a complex dynamical behavior related to atmospheric acoustic‐gravity waves. In this study, qualitative analysis of the four‐dimensional hyperchaotic Lorenz‐Stenflo system via the Caputo fractional derivative is implemented.
Chernet Tuge Deressa, Sina Etemad, Mohammed K. A. Kaabar, Shahram Rezapour, Debarjoyti Choudhuri   +4 more
wiley   +1 more source

Assessment Methods of Body Fat in Recreational Marathon Runners: Bioelectrical Impedance Analysis versus Skinfold Thickness

BioMed Research International, Volume 2021, Issue 1, 2021., 2021
The aim of the present study was to examine (a) the relationship of body fat (BF) assessed by bioimpedance analysis (BIA) and skinfold thickness (SKF) and (b) the variation of BF by age depending on the assessment method. Participants were 32 women and 134 men recreational marathon runners, who were tested for BF using both assessment methods (BIA and ...
Pantelis T. Nikolaidis, Rodrigo Luiz Vancini, Marília dos Santos Andrade, Claudio Andre Barbosa de Lira, Beat Knechtle, Haichun Sun   +5 more
wiley   +1 more source

Study of a Fractional‐Order Chaotic System Represented by the Caputo Operator

Complexity, Volume 2021, Issue 1, 2021., 2021
This paper is presented on the theory and applications of the fractional‐order chaotic system described by the Caputo fractional derivative. Considering the new fractional model, it is important to establish the presence or absence of chaotic behaviors.
Ndolane Sene, Guillermo Huerta Cuellar
wiley   +1 more source

On a Memristor‐Based Hyperchaotic Circuit in the Context of Nonlocal and Nonsingular Kernel Fractional Operator

Journal of Mathematics, Volume 2021, Issue 1, 2021., 2021
Memristor is a nonlinear and memory element that has a future of replacing resistors for nonlinear circuit computation. It exhibits complex properties such as chaos and hyperchaos. A five‐dimensional memristor‐based circuit in the context of a nonlocal and nonsingular fractional derivative is considered for analysis.
Shahram Rezapour, Chernet Tuge Deressa, Sina Etemad, Mehmet Emir Koksal   +3 more
wiley   +1 more source