Results 71 to 80 of about 18,413,602 (203)

A Study of a Diseased Prey-Predator Model with Refuge in Prey and Harvesting from Predator

Journal of Applied Mathematics, 2018
In this paper, a mathematical model of a prey-predator system with infectious disease in the prey population is proposed and studied. It is assumed that there is a constant refuge in prey as a defensive property against predation and harvesting from the ...
Ahmed Sami Abdulghafour, Raid Kamel Naji
doaj   +1 more source

Bacterial Geosmin Biosynthesis is Compartmentalized Inside a Two‐Component Protein Shell

Advanced Science, EarlyView.
This study reports the discovery that geosmin biosynthesis is compartmentalized inside a two‐component protein shell in many bacteria. Sequestration of geosmin synthase inside a Family 2B encapsulin nanocompartment improves geosmin yield and increases enzyme stability as compared to the free enzyme.
Asif Fazal, Cassandra A. Dutcher, Michael P. Andreas, Tobias W. Giessen   +3 more
wiley   +1 more source

Predator-prey model with constant rate of harvesting [PDF]

, 2014
Predator-prey model is the first model to illustrate the interaction between predators and prey. It is a topic of great interest for many ecologists and mathematicians.
Arifin, Nurul Aina
core  

Modelling encounter rates and distribution of mobile predators and prey [PDF]

, 2009
Marine ecosystem models often contain modules for two phytoplankton compartments (flagellates and diatoms) and two zooplankton groups (micro- and mesozooplankton).
Fiksen, Øyvind, Huse, Geir, Geir Huse, Øyvind Fiksen   +3 more
core   +1 more source

Single‐Step Analog In‐Memory Matrix Computation in Three‐Dimensional Circuits

Advanced Intelligent Systems, EarlyView.
A wooden model illustrates a 3D memristive array designed for single‐step kernel convolutions. It shows how two‐dimensional input data are mapped into the 3D array and convolved in parallel with stored kernels. Color‐coded connection points represent programmed memory‐element values, with each color corresponding to a specific kernel weight.
Alireza Jaberi Rad, Koushik Kumar, Fatemeh Kiani, Yi Huang, Ali Abdel‐Maksoud, Zheshun Xiong, Yunzhi Ling, Wuyu Zhao, Qiangfei Xia   +8 more
wiley   +1 more source

The architecture of predator-prey and the relationship between complexity and stability [PDF]

, 2010
Theoretical studies predict that the stability of an ecosystem is negatively correlated with its complexity, measured by the number of interacting species. On the other hand, empirical evidence indicates that food webs are highly interconnected.
Lucas Faria, Karen Luz Burgoa Rosso, Chrystian Paixao, Jose Alberto Nogales Vera, Iraziet Charret   +4 more
core  

Modelling Effects of Rapid Evolution on Persistence and Stability in Structured Predator-Prey Systems [PDF]

, 2014
In this paper we explore the eco-evolutionary dynamics of a predator-prey model, where the prey population is structured according to a certain life history trait.
Farkas, Jozsef Zoltan, J. Z. Farkas, Morozov, Andrew, A. Y. Morozov   +3 more
core   +1 more source

Revealing Hidden Raman Signatures Through Attention‐Based Spectral Unmixing

Advanced Intelligent Systems, EarlyView.
Weak Raman signatures are recovered from background‐dominated spectra using a transformer‐based, reference‐free spectral unmixing AI framework. Self‐attention reconstructs substrate contribution directly from mixed data, enabling reliable extraction of previously inaccessible vibrational features.
Dmitriy A. Poteryayev, Pietro Novelli, Annalisa Coriolano, Riccardo Dettori, Valentina Tozzini, Fabio Beltram, Massimiliano Pontil, Antonio Rossi, Stiven Forti, Camilla Coletti   +9 more
wiley   +1 more source

Hopf bifurcation and stability in a Beddington-DeAngelis predator-prey model with stage structure for predator and time delay incorporating prey refuge

Open Mathematics, 2019
In this paper, we consider a Beddington-DeAngelis predator-prey system with stage structure for predator and time delay incorporating prey refuge. By analyzing the characteristic equations, we study the local stability of the equilibrium of the system ...
Xiao Zaowang, Li Zhong, Zhu Zhenliang, Chen Fengde   +3 more
doaj   +1 more source

Predator-induced changes of female mating preferences: innate and experiential effects [PDF]

, 2011
Background: In many species males face a higher predation risk than females because males display elaborate traits that evolved under sexual selection, which may attract not only females but also predators. Females are, therefore, predicted to avoid such
Michael Tobler, Riesch, Rüdiger, Arias-Rodriguez, Lenin, Tobler Michael, David Bierbach, Plath, Martin, Christian T Jung, Jung, Christian T., Jeane Rimber Indy, Benjamin Kunkel, Klaus, Sebastian, Rüdiger Riesch, Matthias Schulte, Jung Christian T, Indy, Jeane Rimber, Klaus Sebastian, Herrmann, Nina, Nina Herrmann, Sebastian Klaus, Stefan Stadler, Bierbach David, Riesch Rüdiger, Rimber Indy, Jeane, Herrmann Nina, Bierbach, David, Lenin Arias-Rodriguez, Tobler, Michael, Indy Jeane, Plath Martin, Stadler Stefan, Schulte Matthias, Arias-Rodriguez Lenin, Stadler, Stefan, Kunkel Benjamin, Madlen Ziege, Ziege, Madlen, Kunkel, Benjamin, Ziege Madlen, Schulte, Matthias, Martin Plath, Plath, Martin (Prof. Dr.)   +40 more
core   +2 more sources