Results 91 to 100 of about 125,003 (280)

Stable scalable control of soliton propagation in broadband nonlinear optical waveguides

, 2017
We develop a method for achieving scalable transmission stabilization and switching of $N$ colliding soliton sequences in optical waveguides with broadband delayed Raman response and narrowband nonlinear gain-loss.
Huynh, Toan T., Nguyen, Quan M., Peleg, Avner   +2 more
core   +1 more source

Femtosecond‐Laser‐Fabricated 3D CYTOP Microfluidic Chips Enabling Super‐Resolution Live Imaging of Cell Behavior in Confined Microspaces

Advanced Materials Technologies, EarlyView.
Using two‐photon polymerization of SU‐8 together with mold processing allowed the creation of defect‐free, flexible 3D microfluidic structures with sub‐micrometer precision in CYTOP. The fabricated CYTOP microfluidic chips enabled super‐resolution imaging of cancer cells in the microchannels, clearly visualizing previously undetectable fine structural ...
Koji Sugioka, Mirai Hanzawa, Kotaro Obata, Sota Matsumoto, Masatoshi Takagi, Asako Sakaue‐Sawano, Asako Tosaki, Satoshi Shimozono, Felix Sima, Hiroyuki Kawano, Takuro Tojima, Daisuke Miyashiro, Kazunari Ozasa, Yasutaka Hanada, Godai Miyaji, Akihiko Nakano, Atsushi Miyawaki   +16 more
wiley   +1 more source

Mathematical Modeling of Infectious Disease and Prey-Predator Interaction with Optimal Control

International Journal of Mathematics and Mathematical Sciences
In this paper, the impact of viral illnesses on the predator-prey relationship with an optimal control analysis is studied. An ecoepidemiological model of four compartments, namely, susceptible prey, susceptible predator, infected prey, and infected ...
Kassahun Getnet Mekonen, Abayneh Fentie Bezabih, Koya Purnachandra Rao   +2 more
doaj   +1 more source

Boundary Effects on Population Dynamics in Stochastic Lattice Lotka-Volterra Models

, 2017
We investigate spatially inhomogeneous versions of the stochastic Lotka-Volterra model for predator-prey competition and coexistence by means of Monte Carlo simulations on a two-dimensional lattice with periodic boundary conditions.
Chen, Sheng, Heiba, Bassel, Täuber, Uwe C.   +2 more
core   +1 more source

From Brittle to Flexible: Influence of Glucose‐Based Additives on Cellulose Nanocrystal Self‐Assembly in Suspension and Dried Photonic Films

Advanced Optical Materials, EarlyView.
Cellulose nanocrystals (CNCs) self‐assemble in aqueous suspension into chiral nematic liquid crystals, resulting in structurally colored films upon drying. Here, the influence of sugar additives on CNC self‐assembly in suspension and in films are studied.
Buse Tatli, Alexandra R. Rousseau, Wenkui Xing, Matteo Hirsch, Emily D. Cranston, Tiffany Abitbol   +5 more
wiley   +1 more source

Spatiotemporal complexity of a ratio-dependent predator-prey system

, 2007
In this paper, we investigate the emergence of a ratio-dependent predator-prey system with Michaelis-Menten-type functional response and reaction-diffusion. We derive the conditions for Hopf, Turing and Wave bifurcation on a spatial domain.
A. M. Turing, B. E. Kendall, C. Neuhauser, E. Sharon, J. D. Murray, M. Fasham, N. Shigesada, Quan-Xing Liu, R. O. Prum, W. L. Briggs, W. S. C. Gurney, Weiming Wang, Zhen Jin   +12 more
core   +1 more source

On Predator-Prey Systems and Small-Gain Theorems

Mathematical Biosciences and Engineering, 2005
This paper deals with an almost global convergence result for Lotka-Volterra systems with predator-prey interactions. These systems can be written as (negative) feedback systems. The subsystems of the feedback loop are monotone control systems, possessing particular input-output properties.
Patrick D. Leenheer, David Angeli, Eduardo D. Sontag   +2 more
openaire   +3 more sources

Enhanced Trapping with an Optimized Graphene‐Based Bowtie Plasmonic Nanotweezer: Design, Analysis, and Bioanalytical Applications

Advanced Photonics Research, EarlyView.
A graphene‐based bowtie plasmonic nanotweezer is designed and optimized using particle swarm optimization and transfer matrix analysis. The structure achieves strong field confinement, delivering trapping forces up to 6 nN W−1 for 10 nm bioparticles with sixfold lower power requirements than conventional designs.
Saba Ebrahimpanah, Mohammad Hazhir Mozaffari, Ali Farmani   +2 more
wiley   +1 more source

Stability Analysis of a Ratio-Dependent Predator-Prey Model Incorporating a Prey Refuge

Journal of Applied Mathematics, 2014
A ratio-dependent predator-prey model incorporating a prey refuge with disease in the prey population is formulated and analyzed. The effects of time delay due to the gestation of the predator and stage structure for the predator on the dynamics of the ...
Lingshu Wang, Guanghui Feng
doaj   +1 more source

Midbrain PAG Astrocytes Modulate Mouse Defensive and Panic‐Like Behaviors

Advanced Science, EarlyView.
Astrocytes in the midbrain periaqueductal gray (PAG) dynamically encode threat intensity and shape defensive action selection in mice. Real‐time Ca2+ imaging reveals robust astrocytic activation during predator odor and CO2 exposure. Aberrant astrocytic Ca2+ overactivation disrupts goal‐directed escape, biases behavior toward freezing, and induces ...
Ellane Barcelon, Kyungchul Noh, Minkyu Hwang, Yoon‐Jung Kim, Unjin Lee, Yeon Joo Ryu, Je‐Kyung Ryu, Sang Beom Jun, Se‐Young Choi, Woo‐Hyun Cho, Sung Joong Lee   +10 more
wiley   +1 more source