Results 41 to 50 of about 125,003 (280)

Spatio-temporal dynamics of a predator–prey system with variable carrying capacity and Cosner response function

Franklin Open
The environmental carrying capacity plays a major role in population dynamics and is highly unpredictable in predator–prey relationships. In this study, we examine a predator–prey model with logistic growth rate and variable carrying capacity of prey ...
Sasanka Shekhar Maity, Subarna Roy, Pankaj Kumar Tiwari   +2 more
doaj   +1 more source

Stability Analysis of a Patchy Predator–Prey Model with Fear Effect

Axioms, 2022
In this paper, a predator–prey model with fear effect and dispersal is proposed. Assume that only the prey migrates at a constant rate between patches and the migration of prey on each patch is faster than the time scale of local predator–prey ...
Tingting Liu, Lijuan Chen
doaj   +1 more source

Hyperbolic predators vs parabolic preys [PDF]

, 2014
We present a nonlinear predator-prey system consisting of a nonlocal conservation law for predators coupled with a parabolic equation for preys. The drift term in the predators' equation is a nonlocal function of the prey density, so that the movement of
Colombo, Rinaldo M., Rossi, Elena
core   +2 more sources

TREX1, a predator for treating MSI‐H tumors?

Molecular Oncology, EarlyView.
Immunotherapy benefits many patients; yet, some with MSI‐H tumors remain unresponsive despite their high immunogenicity. Xu et al. reveal that TREX1 enables immune evasion by degrading cytosolic DNA and suppressing cGAS–STING–IFN‐I signaling. TREX1 loss restores DNA sensing, increases CD8+ T and NK cell infiltration, and boosts antitumor immunity ...
Elena Benidovskaya, Joséphine Deneft, Marc Van den Eynde   +2 more
wiley   +1 more source

Trait‐mediated diversification in nematode predator–prey systems [PDF]

Ecology and Evolution, 2011
AbstractNematodes are presumably the most numerous Metazoans in terrestrial habitats. They are represented at all trophic levels and are known to respond to nutrient limitation, prey availability, and microbial resources. Predatory nematodes reside at the highest trophic level, and as such their feeding habits could have a major impact on soil food web
Mulder, C., Helder, J., Vervoort, M.T.W., Vonk, J.A.   +3 more
openaire   +3 more sources

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

Advanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath, Briahnah Streeter, Satyam Srivastava, Jemma Wood, William E. Bentley, Taylor J. Woehl, Srinivasa R. Raghavan   +6 more
wiley   +1 more source

Fisher-KPP dynamics in diffusive Rosenzweig-MacArthur and Holling-Tanner models

, 2019
We prove the existence of traveling fronts in diffusive Rosenzweig-MacArthur and Holling-Tanner population models and investigate their relation with fronts in a scalar Fisher-KPP equation. More precisely, we prove the existence of fronts in a Rosenzweig-
Cai, Hong, Ghazaryan, Anna, Manukian, Vahagn   +2 more
core   +1 more source

Expanding Chemical Space of Nucleic Acid Nanoparticles for Tunable Antiviral‐Like Immunomodulatory Responses and Potent Adjuvant Activity

Advanced Functional Materials, EarlyView.
We introduce a nucleic acid nanoparticle (NANP) platform designed to be rrecognized by the human innate immune system in a regulated manner. By changing chemical composition while maintaining constant architectural parameters, we identify key determinants of immunorecognition enabling the rational design of NANPs with tunable immune activation profiles
Martin Panigaj, Hannah S. Newton, Jian Wang, Laxmi Pandey, Yelixza I. Avilla, Phong Nguyen, Morgan Chandler, Justin Halman, Yasmine Radwan, Stephanie Smith, Elijah Edmondson, Simone Difilippantonio, Chelsea Sanders, Bao Tran, Yongmei Zhao, Shaojun Xie, Edward Cedrone, Barry W. Neun, Meni Wanunu, Nikolay V. Dokholyan, Marina A. Dobrovolskaia, Kirill A. Afonin   +21 more
wiley   +1 more source

Effects of rapid prey evolution on predator-prey cycles

, 2006
We study the qualitative properties of population cycles in a predator-prey system where genetic variability allows contemporary rapid evolution of the prey. Previous numerical studies have found that prey evolution in response to changing predation risk
A.P. Hendry, B.J.M. Bohannan, B.J.M. Bohannan, C. Zimmer, D. Toth, D.D. Heath, D.I. Andersson, D.N. Reznick, D.O. Conover, D.V. Vayenis, D.W. Coltman, E.L. Preisser, E.M. Olsen, G.F. Fussmann, G.F. Fussmann, G.J. Butler, H. Xia, H.L. Smith, I. Saccheri, J. Antonovics, J. Arino, J. Bergelson, J. Guckenheimer, J. Meyer, J.D. Pickett-Heaps, J.N. Thompson, K.W. Shertzer, L. Becks, L.E. Jones, Laura E. Jones, M. Barry, M. Kretzschmar, M.V. Ashley, N.G. Hairston, N.G. Hairston, P. Abrams, P. Abrams, P.R. Grant, R.M. May, S. Gagneux, S. Palumbi, S. Ruan, S.R. Searle, S.Y. Strauss, Stephen P. Ellner, T. Yoshida, T. Yoshida, W.H. Press, Y.A. Kuznetsov   +48 more
core   +1 more source

A Termite‐Inspired Alternative to Cement

Advanced Functional Materials, EarlyView.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev, Peter Fratzl, Emeline Raguin, Markus Antonietti   +3 more
wiley   +1 more source