Results 61 to 70 of about 1,024,081 (371)

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

Population Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

Population Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva, João Hemerson de Sousa, Adriana Josefa da Rocha, Manuella Feitosa Leal, Lucas Ariel de Sousa Aguiar, Tamaris Gimenez Pinheiro, Edson Lourenço da Silva   +6 more
wiley   +1 more source

Synchronization of chaotic oscillator time scales

, 2005
This paper deals with the chaotic oscillator synchronization. A new approach to detect the synchronized behaviour of chaotic oscillators has been proposed.
A. A. Koronovskii, A. A. Koronovskii, A. E. Hramov, A. Grossman, A. Lutz, A. Pikovsky, A. Pikovsky, A. Pikovsky, A. S. Pikovsky, B. Torresani, C. M. Ticos, C. Torrence, D. I. Trubetskov, D. Y. Tang, E. Allaria, E. Rosa, G. Kaiser, G. V. Osipov, H. D. I. Abarbanel, I. Daubechies, J. P. Lachaux, K. Murali, L. Kocarev, L. M. Pecora, L. M. Pecora, L. M. Pecora, M. G. Rosenblum, M. G. Rosenblum, M. L. V. Quyen, N. F. Rulkov, P. A. Tass, R. C. Elson, U. Parlitz, V. A. Gusev, V. S. Anishchenko, V. S. Anishchenko, V. S. Anishchenko, V. S. Anishchenko, Z. Zheng   +38 more
core   +1 more source

Transition from anticipatory to lag synchronization via complete synchronization in time-delay systems [PDF]

, 2005
The existence of anticipatory, complete and lag synchronization in a single system having two different time-delays, that is feedback delay $\tau_1$ and coupling delay $\tau_2$, is identified.
A. S. Pikovsky, D. V. Senthilkumar, D. V. Senthilkumar, H. U. Voss, L. Pecora, M. Lakshmanan, M. Lakshmanan, M. Lakshmanan, N. N. Krasovskii   +8 more
core   +2 more sources

A Novel PSS Timing Synchronization Algorithm for Cell Search in 5G NR System

IEEE Access, 2021
Cell search is the first step to establish downlink synchronization between user equipment (UE) and base station (BS) in the fifth generation (5G) new radio (NR) system.
Dan Wang, Zhiqiang Mei, Hanqing Zhang, Hebin Li   +3 more
doaj   +1 more source

Complexity and synchronization [PDF]

Physical Review E, 2009
We study a fully connected network (cluster) of interacting two-state units as a model of cooperative decision making. Each unit in isolation generates a Poisson process with rate g . We show that when the number of nodes is finite, the decision-making process becomes intermittent.
Turalska, Malgorzata, Lukovic, Mirko, West, Bruce J., Grigolini, Paolo   +3 more
openaire   +3 more sources

The epithelial barrier theory proposes a comprehensive explanation for the origins of allergic and other chronic noncommunicable diseases

FEBS Letters, EarlyView.
Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu, Huseyn Babayev, Ismail Ogulur, Sena Ardicli, Yagiz Pat, Duygu Yazici, Bingjie Zhao, Lihong Chang, Xiaoqing Liu, Paolo D'Avino, Manru Li, Ceren Biçer, Fatma Hacer Kurtoğlu Babayev, Raja Dhir, Kari C. Nadeau, Marie‐Charlotte Brüggen, Mubeccel Akdis, Cezmi A. Akdis   +17 more
wiley   +1 more source

A Cluster-Based Secure Synchronization Protocol for Underwater Wireless Sensor Networks

International Journal of Distributed Sensor Networks, 2014
Secure time synchronization is one of the key concerns for Underwater Wireless Sensor Networks (UWSNs). This paper presents a CLUster-based Secure Synchronization (CLUSS) protocol that ensures the security of synchronization under harsh underwater ...
Ming Xu, Guangzhong Liu, Daqi Zhu, Huafeng Wu   +3 more
doaj   +1 more source

Predefined-time vector-polynomial-based synchronization among a group of chaotic systems and its application in secure information transmission

AIMS Mathematics, 2021
This article aims to improve the security and timeliness of chaotic synchronization scheme in chaotic secure information transmission. Firstly, a novel nonlinear synchronization scheme among multiple chaotic systems is defined based on vector polynomial ...
Qiaoping Li, Sanyang Liu
doaj   +1 more source

Synchronization of the heart.

Journal of Applied Physiology, 1973
The behaviour of cardiac pacemaker cells bears a resemblance to that of relaxation oscillators. A characteristic property of relaxation oscillators is that they may be synchronized by an external signal, if the latter has a periodicity not differing too much from the spontaneous frequency of the oscillator.
Tweel, L.H. van der, Meijler, F.L., Capelle, F.J.L. van   +2 more
openaire   +3 more sources