Results 31 to 40 of about 1,625 (133)

Attainability to Solve Fractional Differential Inclusion on the Half Line at Resonance

open access: yesComplexity, 2020
The presented article is deduced about the positive solutions of the fractional differential inclusion at resonance on the half line. The fractional derivative used is in the sense of Riemann–Liouville and the problem is supplemented by unseparated ...
Ahmed Salem   +2 more
doaj   +1 more source

Behavioural and physiological adaptations of a jumping spider to a marine environment

open access: yesJournal of Zoology, Volume 327, Issue 2, Page 148-158, October 2025.
We investigated aspects of Maratus marinus (Salticidae) behaviour and physiology that allow it to exploit the intertidal zone of its habitat and survive periods of submergence. In a simulated rising tide, spiders within densely constructed nests remained, continuing to respire while submerged. Spiders in flimsily built nests fled the oncoming tide, and
M. A. Leggett, J. Hill, X. J. Nelson
wiley   +1 more source

Boundary value problems of fractional q-difference equations on the half-line

open access: yesBoundary Value Problems, 2019
In this paper, we consider the boundary value problem of a class of nonlinear fractional q-difference equations involving the Riemann–Liouville fractional q-derivative on the half-line.
Kuikui Ma, Xinhui Li, Shurong Sun
doaj   +1 more source

Morphological covariates of the ontogenetic shift from nauplii to copepodite prey in larval fish

open access: yesJournal of Fish Biology, Volume 107, Issue 1, Page 169-179, July 2025.
Abstract Larval fish are active planktonic predators, with many species feeding initially on copepod nauplii and gradually shifting their selection to copepodites. This study evaluated whether it is possible to develop a general widely applicable empirical model to describe the transition from feeding on copepod nauplii to copepodites in relation to ...
Pierre Pepin
wiley   +1 more source

Positive Solutions to a Coupled Fractional Differential System with p-Laplacian Operator

open access: yesDiscrete Dynamics in Nature and Society, 2019
In this paper, we consider a fractional differential system with multistrip and multipoint mixed boundary conditions involving p-Laplacian operator and fractional derivatives.
Yuehan Liu, Xiaodi Zhao, Huihui Pang
doaj   +1 more source

Three symmetric positive solutions of fourth-order singular nonlocal boundary value problems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2011
In this paper, we study the existence of three positive solutions of fourth-order singular nonlocal boundary value problems. We show that there exist triple symmetric positive solutions by using Leggett-Williams fixed-point theorem.
Fuyi Xu
doaj   +1 more source

Probiotic‐Based Approaches for Sustainable Control of Infectious Risk in Mass Transport: Current Data and Future Perspectives

open access: yesMicrobial Biotechnology, Volume 18, Issue 6, June 2025.
High‐traffic areas, such as mass transportation environments, can have a significant impact on infection transmission, and chemical disinfection may favour the selection of drug‐resistant microbes. Probiotic‐based approaches have the potential to be a novel and ecologically sustainable option for controlling bioburden and preventing infections ...
Irene Soffritti   +7 more
wiley   +1 more source

Exploring the congruence between perceived parent–teacher achievement goals and student academic outcomes: A study using polynomial regression with response surface analysis

open access: yesBritish Journal of Educational Psychology, Volume 95, Issue 2, Page 603-626, June 2025.
Abstract Background The achievement goals set by parents and teachers play a crucial role in shaping students' personal goal orientation and academic performance. Previous studies have revealed discrepancies between achievement goals set by parents and teachers.
Ningning Zhao   +6 more
wiley   +1 more source

Multiple positive solutions for singular higher-order semipositone fractional differential equations with p-Laplacian

open access: yesNonlinear Analysis, 2020
In this article, together with Leggett–Williams and Guo–Krasnosel’skii fixed point theorems, height functions on special bounded sets are constructed to obtain the existence of at least three positive solutions for some higher-order fractional ...
Qiuyan Zhong   +4 more
doaj   +1 more source

Closing the air gap: the use of drones for studying wildlife ecophysiology

open access: yesBiological Reviews, Volume 100, Issue 3, Page 1206-1228, June 2025.
ABSTRACT Techniques for non‐invasive sampling of ecophysiological data in wild animals have been developed in response to challenges associated with studying captive animals or using invasive methods. Of these, drones, also known as Unoccupied Aerial Vehicles (UAVs), and their associated sensors, have emerged as a promising tool in the ecophysiology ...
Adam Yaney‐Keller   +3 more
wiley   +1 more source

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