Results 11 to 20 of about 1,638,815 (287)

Structural Complexity and Benthic Cover Explain Reef-Scale Variability of Fish Assemblages in Los Roques National Park, Venezuela

open access: yesFrontiers in Marine Science, 2019
Global and local stressors are causing the worldwide loss of coral cover and structural complexity at an unprecedented pace on reefs. In consequence, the habitat of coral reef fish has suffered a profound degradation affecting the abundance, biodiversity
Esteban A. Agudo-Adriani   +3 more
doaj   +1 more source

The Existential Metaphysics of the Person. Part 1: The Classical Concept of the Person and the Metaphysical Theory of Esse [PDF]

open access: yesStudia Gilsoniana, 2021
The article is the first part of a brief presentation of a research project aimed at introducing the concept of the existential metaphysics of the person—a contribution to classical anthropology based on so-called existential metaphysics.
Arkadiusz Gudaniec
doaj   +1 more source

Du topos à la contre-topique. Cartographie du magique comme champ opératoire de la phénoménologie sartrienne

open access: yesMethodos, 2015
This article questions the status of the magical in early Sartre both as an inheritage of the reading of french psychology and anthropology and as the place of the phenomenological break by which an original philosophy of existence can be developped. The
Gautier Dassonneville
doaj   +1 more source

L’écriture du corps dessiné dans Il cavaliere inesistente

open access: yesItalies, 2012
Il cavaliere inesistente pose clairement le problème de l’écriture, grâce à un personnage écrivain, Suor Teodora. Cette narratrice cloîtrée est la version féminine des moines enlumineurs : écriture et dessin sont donc unis dans cet univers clos comme ...
Judith Obert
doaj   +1 more source

Periodic wave solutions of a non-Newtonian filtration equation with an indefinite singularity

open access: yesAIMS Mathematics, 2021
This paper is concerned with the existence of periodic wave solutions for a type of non-Newtonian filtration equations with an indefinite singularity.
Famei Zheng
doaj   +1 more source

Cauchy problem of the generalized Zakharov type system in R 2 $\mathbf{R}^{2}$

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we consider the initial value problem for a two-dimensional generalized Zakharov system with quantum effects. We prove the existence and uniqueness of global smooth solutions to the initial value problem in the Sobolev space through making
Shujun You, Xiaoqi Ning
doaj   +1 more source

Properties of positive solutions for a fractional boundary value problem involving fractional derivative with respect to another function

open access: yesAIMS Mathematics, 2020
In this article, we develop the existence and uniqueness of positive solutions to a class of fractional boundary value problems involving fractional order derivative with respect to another function for any given parameter. The analysis is based upon the
Yitao Yang, Dehong Ji
doaj   +1 more source

Existence result for a Kirchhoff elliptic system involving p-Laplacian operator with variable parameters and additive right hand side via sub and super solution methods

open access: yesAIMS Mathematics, 2021
The paper deals with the study of the existence result for a Kirchhoff elliptic system with additive right hand side and variable parameters involving p−Laplacian operator by using the sub-super solutions method.
Salah Boulaaras   +3 more
doaj   +1 more source

Existence and non-existence of Blow-up solutions for a non-autonomous problem with indefinite and gradient terms [PDF]

open access: yes, 2014
We deal with existence and non-existence of non-negative entire solutions that blow-up at infinity for a quasilinear problem depending on a non-negative real parameter. Our main objectives in this paper are to provide far more general conditions for existence and non-existence of solutions.
arxiv   +1 more source

Existence and stability analysis of nonlinear sequential coupled system of Caputo fractional differential equations with integral boundary conditions

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2019
In this paper we study existence and uniqueness of solutions for a coupled system consisting of fractional differential equations of Caputo type, subject to Riemann–Liouville fractional integral boundary conditions.
Akbar Zada , Muhammad Yar, Tongxing Li
doaj   +1 more source

Home - About - Disclaimer - Privacy