Results 81 to 90 of about 4,826,497 (302)

Stochastic delocalization of finite populations

, 2012
Heterogeneities in environmental conditions often induce corresponding heterogeneities in the distribution of species. In the extreme case of a localized patch of increased growth rates, reproducing populations can become strongly concentrated at the ...
Kimura M, Kimura M, Kolmogorov A N, Lukas Geyrhofer, Lynch M, Oskar Hallatschek, Tunnicliffe V, Whitlock M C, Wolff A   +8 more
core   +1 more source

Self-organized Criticality in Living Systems [PDF]

, 1994
We suggest that ensembles of self-replicating entities such as biological systems naturally evolve into a self-organized critical state in which fluctuations, as well as waiting-times between phase transitions are distributed according to a 1/f power law.
Adami, C.
core   +1 more source

Hydrogel‐Based Capacitive Sensor Model for Ammonium Monitoring in Aquaculture

Advanced Engineering Materials, EarlyView.
Traditional techniques for monitoring aquaculture water quality, particularly ammonium levels, harm fish. This work presents a novel capacitive sensor with an ionic hydrogel transducer to monitor ammonium concentration in real time based on the ammonium‐induced hydrogel dissociation and osmotic pressure. Monitoring aquaculture water quality, especially
Mohammad Mirzaee, Mahdi Askari‐sedeh, Ali Zolfagharian, Mostafa Baghani   +3 more
wiley   +1 more source

Print‐and‐Plate Architected Electrodes for Electrochemical Transformations Under Flow

Advanced Functional Materials, EarlyView.
Typical flow cell electrodes are composed of stochastic porous carbon, limiting understanding of electrode structure‐performance relationships. This work describes an approach, termed “print‐and‐plate,” to prepare porous electrodes by direct ink writing followed by conformal metal coating.
Dylan M. Barber, Sofía Edgar, Michael S. Emanuel, Michael D. Nelwood, Bok Yeop Ahn, Benito Román‐Manso, Thomas Cochard, Justin Platero, Kiana Amini, Chris H. Rycroft, Shmuel Rubinstein, Michael J. Aziz, Jennifer A. Lewis   +12 more
wiley   +1 more source

Resistance of Hepatitis C Virus to Inhibitors: Complexity and Clinical Implications

Viruses, 2015
Selection of inhibitor-resistant viral mutants is universal for viruses that display quasi-species dynamics, and hepatitis C virus (HCV) is no exception.
Celia Perales, Josep Quer, Josep Gregori, Juan Ignacio Esteban, Esteban Domingo   +4 more
doaj   +1 more source

Punctuated equilibria and 1/f noise in a biological coevolution model with individual-based dynamics [PDF]

, 2003
We present a study by linear stability analysis and large-scale Monte Carlo simulations of a simple model of biological coevolution. Selection is provided through a reproduction probability that contains quenched, random interspecies interactions, while ...
A. Roberts, B. Drossel, C.C. Wilmers, C.E. Shannon, C.E. Shannon, C.M. Newman, D. Chowdhury, E. Tüzel, E. Tüzel, F. Daerden, I. Procaccia, I.D. Rozdilsky, J. Davidsen, J. Maynard Smith, J.A.J. Metz, K. Christensen, M. Doebeli, M. Eigen, M. Eigen, M. Hall, M. Howard, M.E. Gilpin, M.E.J. Newman, M.E.J. Newman, M.R. Gardner, P. Bak, P. Bak, P. Bak, P.A. Rikvold, P.A. Rikvold, P.F. Verhulst, P.H. Leslie, P.H. Leslie, Per Arne Rikvold, R. K. P. Zia, R.M. May, R.V. Solé, R.V. Solé, S.A. di Collobiano, S.A. Kauffman, S.J. Gould, S.J. Gould, T. Tregonning, T.J. Penna   +43 more
core   +1 more source

Multi‐Pathway Upconversion Emission in Symmetry‐Broken Nanocavities: Broadband Multiresonant Enhancement and Anti‐Correlated Interfacial Sensitivity

Advanced Functional Materials, EarlyView.
Symmetry‐broken plasmonic nanoantenna arrays achieve broadband multiresonant enhancement of second harmonic generation (SHG), third harmonic generation (THG), and upconversion photoluminescence (UCPL), under femtosecond laser excitation across the near‐infrared range (1000–1600 nm).
Elieser Mejia, Yuming Zhao, Meitong Nie, Benjamin Pittelkau, Aditya Garg, Junyeob Song, Wenqi Zhu, Henri Lezec, Amit Agrawal, Wei Zhou   +9 more
wiley   +1 more source

Assessing recovery of spectacled eiders using a Bayesian decision analysis.

PLoS ONE, 2021
Assessing species status and making classification decisions under the Endangered Species Act is a critical step towards effective species conservation.
Kylee D Dunham, Erik E Osnas, Charles J Frost, Julian B Fischer, James B Grand   +4 more
doaj   +1 more source

Virus Replication as a Phenotypic Version of Polynucleotide Evolution

, 2013
In this paper we revisit and adapt to viral evolution an approach based on the theory of branching process advanced by Demetrius, Schuster and Sigmund ("Polynucleotide evolution and branching processes", Bull. Math. Biol.
A. Eyre-Walker, A. Kowald, A. Timm, C. Escarmís, C. J. Thompson, C. Meyer, C. O. Wilke, C. O. Wilke, D. A. Steinhauer, D. R. Rokyta, Diogo Castro, E. Domingo, E. Domingo, E. Lázaro, F. Antoneli, F. Antoneli, F. Gantmacher, Fernando Antoneli, Francisco Bosco, H. A. Orr, H. W. Watson, I. Leuthäusser, J. A. Capitán, J. A. Cuesta, J. A. Cuesta, J. Aguirre, J. Aguirre, J. H. Wilkinson, J. Hermisson, J. J. Bull, J. J. Bull, J. J. Bull, J. Swetina, K. B. Athreya, K. Dietz, L. Demetrius, L. Demetrius, Luiz Mario Janini, M. Delbrück, M. Eigen, M. Eigen, M. Imhof, M. Jiřina, M. Kimmel, M. Parera, M. Ziehe, P. Carrasco, P. D. Keightley, P. Domingo-Calap, P. Jagers, R. Forster, R. M. Gray, R. Miralles, R. Sanjuán, S. C. Manrubia, S. Crotty, S. F. Elena, S. F. Elena, S. Ojosnegros, S. Ojosnegros, T. G. Kurtz, T. Harris, U. Grenander, W. Feller, Y. Zhu   +64 more
core   +1 more source

Stable and Dendrite‐Free Zinc Metal Anodes Via Interface Nanoarchitectonics for Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
This review explores Zn anode challenges in aqueous ZIBs, including dendrites, corrosion, and side reactions, and discusses strategies for improvement through Zn anode, electrolyte, and separator modifications to enhance stability and efficiency. Abstract Aqueous rechargeable zinc‐ion batteries (ZIBs) are emerging as promising candidates for next ...
Pragati A. Shinde, Nilesh R. Chodankar, Lok Kumar Shrestha, Amal Al Ghaferi, Ebrahim Alhajri, Katsuhiko Ariga   +5 more
wiley   +1 more source