Results 51 to 60 of about 2,368,763 (160)

Resource competition between buoyancy‐regulating and sinking phytoplankton species along a stratified water column

open access: yesOikos, Volume 2026, Issue 10, October 2026.
In temperate lakes, plankton dynamics are closely linked to seasonal shifts in water stratification, following air temperature. The onset of summer stratification typically coincides with the formation of an algal spring bloom in the well‐mixed surface layer (epilimnion).
Arthur F. Rossignol, Sabine Wollrab
wiley   +1 more source

Numerical studies for solving fractional integro-differential equations

open access: yesJournal of Ocean Engineering and Science, 2018
In this paper, we give a new numerical method for solving a linear system of fractional integro-differential equations. The fractional derivative is considered in the Caputo sense.
A.M.S. Mahdy
doaj   +1 more source

geohabnet: An R package for mapping habitat connectivity for biosecurity and conservation

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 10, Page 2862-2872, October 2026.
Abstract Habitat connectivity is critical for the conservation of endangered and endemic species, and conversely, it can hinder efforts to contain the spread of harmful biological agents. Here, we introduce geohabnet: a general, spatially explicit, network‐based R package for evaluating, estimating and mapping landscape connectivity from continuous ...
Aaron I. Plex Sulá   +6 more
wiley   +1 more source

http://ijmex.com/index.php/ijmex/article/view/96

open access: yesJournal of Mathematical Extension, 2012
In this work, the modified Laplace Adomian decomposition method (LADM) is applied to solve the integro-differential equations. In addition, examples that illustrate the pertinent features of this method are presented, and the results of the study are ...
J. Manafianheris
doaj  

An ordinary integro-differential equation with a degenerate kernel and an integral condition

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2016
We consider the questions of one value solvability of the nonlocal boundary value problem for a nonlinear ordinary integro-differential equation with a degenerate kernel and a reflective argument.
Tursun K Yuldashev
doaj   +1 more source

Individual bird identification by modelling temporal structure in bioacoustic embeddings

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 10, Page 2909-2927, October 2026.
Abstract Identifying individual animals from vocalizations is an emerging research area in computational bioacoustics. This non‐invasive approach reduces reliance on physical capture and tagging for wildlife monitoring. Recent advances in this area leverage deep learning and bioacoustic foundation models adapted from species‐level classifiers. However,
Jonathan Gallego   +2 more
wiley   +1 more source

Second-Order Nonlinear Impulsive Integro-Differential Equations of Mixed Type and Optimal Controls in Fractional Power Spaces

open access: yesAbstract and Applied Analysis, 2010
A class of second-order nonlinear impulsive integro-differential equations of mixed type whose principal part is given by time-varying generating operators in fractional power spaces is considered. We introduce the reasonable PC-α-mild solution of second-
Y. Peng
doaj   +1 more source

Integrating fossil data in ecological niche models to improve predictions of future habitat of Caribbean corals

open access: yesConservation Biology, Volume 40, Issue 5, October 2026.
Abstract Ecological niche models (ENMs) are used to assess the abiotic preferences of species by linking their occurrences to the environmental conditions in which they live. We developed a fossil‐informed ENM framework that integrates mid‐Holocene and modern occurrences to test niche stability and reconstruct abiotic niche characteristics for four ...
Claire. M. Williams   +3 more
wiley   +1 more source

Random Carbon Tax Policy and Investment Into Emission Abatement Technologies

open access: yesMathematical Finance, Volume 36, Issue 4, Page 804-825, October 2026.
ABSTRACT We analyze the problem of a profit‐maximizing electricity producer, subject to carbon taxes, who decides on investments into CO2$\rm CO_2$ abatement technologies. We assume that the carbon tax policy is random and that the investment in the abatement technology is divisible, irreversible, and subject to transaction costs.
Katia Colaneri   +2 more
wiley   +1 more source

Solving linear systems of fractional integro-differential equations by Haar and Legendre wavelets techniques

open access: yesPartial Differential Equations in Applied Mathematics
In this study, we present two highly effective approaches aimed at solving linear systems of equations, specifically focusing on the Fredholm and Volterra equations in fractional integro-differential formula.
Seham Sh. Tantawy
doaj   +1 more source

Home - About - Disclaimer - Privacy