Results 1 to 10 of about 8,773,386 (253)

Positive Solutions of Advanced Differential Systems [PDF]

The Scientific World Journal, 2013
We study asymptotic behavior of solutions of general advanced differential systems y˙(t)=F(t,yt), where F:Ω→ℝn is a continuous quasi-bounded functional which satisfies a local Lipschitz condition with respect to the second argument and Ω is a subset in ℝ×
Josef Diblík, Mária Kúdelčíková
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The Creative Canine: Investigating the concept of creativity in dogs (Canis lupus familiaris) using citizen science

International Journal of Comparative Psychology, 2023
There is no shortage of anecdotal evidence that domestic dogs ( Canis lupus familiaris ) can solve problems in individual or creative ways. Whether it is figuring out a new way to knock over the trash can or combining puppy-dog eyes with a whine for some
Kaitlyn Rose Willgohs, Jenna Williams, Elaina Franklin, Lauren E. Highfill   +3 more
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Algebraic Systems with Positive Coefficients and Positive Solutions

Mathematics, 2022
The paper is devoted to the existence, uniqueness and nonuniqueness of positive solutions to nonlinear algebraic systems of equations with positive coefficients.
Ana Maria Acu, Ioan Raşa, Ancuţa Emilia Şteopoaie   +2 more
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Existence and multiplicity of radially symmetric k-admissible solutions for a k-Hessian equation

Boundary Value Problems, 2022
In this paper, we show that the radially symmetric k-admissible solutions set of a k-Hessian equation Dirichlet problem with homogeneous boundary condition contains a reversed S-shaped connected component.
Liangying Miao, Zhiqian He
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Root turnover and soil indicators capture belowground recovery following saltmarsh restoration [PDF]

Biogeosciences
Coastal wetlands, including saltmarsh, are highly productive ecosystems, with carbon- and nutrient-rich soils supporting biodiversity. Beyond carbon stocks and sequestration, the responses to restoration of these nutrient-rich and structurally complex ...
S. K. B. Olsson, S. K. B. Olsson, A. Akhand, A. Akhand, P. I. Macreadie, P. I. Macreadie, J. Kaal, S. Nuyts, P. E. Carnell, P. E. Carnell, S. M. Trevathan-Tackett, S. M. Trevathan-Tackett   +11 more
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Unmet basic needs negatively affect health-related quality of life in people aging with HIV: results from the Positive Spaces, Healthy Places study

BMC Public Health, 2018
Background Basic needs (e.g., food security and stable housing) are important determinants of health and well-being, yet their impact on health-related quality of life (HRQoL) in the context of HIV and aging has not been systematically investigated ...
Phan Sok, Sandra Gardner, Tsegaye Bekele, Jason Globerman, Mary V. Seeman, Saara Greene, Michael Sobota, Jay J. Koornstra, LaVerne Monette, Keith Hambly, Stephen W. Hwang, James Watson, Glen Walker, Sean B. Rourke, The Positive Spaces, Healthy Places Team   +14 more
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Positive solutions for nonparametric anisotropic singular solutions [PDF]

Opuscula Mathematica
We consider an elliptic equation driven by a nonlinear, nonhomogeneous differential operator with nonstandard growth. The reaction has the combined effects of a singular term and of a "superlinear" perturbation.
Nikolaos S. Papageorgiou, Vicenţiu D. Rădulescu, Xueying Sun   +2 more
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Normalized solutions to the Schrödinger systems with double critical growth and weakly attractive potentials

Electronic Journal of Qualitative Theory of Differential Equations, 2023
In this paper, we look for solutions to the following critical Schrödinger system $$\begin{cases} -\Delta u+(V_1+\lambda_1)u=|u|^{2^*-2}u+|u|^{p_1-2}u+\beta r_1|u|^{r_1-2}u|v|^{r_2}&{\rm in}\ \mathbb{R}^N,\\ -\Delta v+(V_2+\lambda_2)v=|v|^{2^*-2}v+|v ...
Lei Long, Xiaojing Feng
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Positive solutions for parametric (p(z),q(z))-equations

Open Mathematics, 2020
We consider a parametric elliptic equation driven by the anisotropic (p,q)(p,q)-Laplacian. The reaction is superlinear. We prove a “bifurcation-type” theorem describing the change in the set of positive solutions as the parameter λ\lambda moves in ℝ+=(0,
Gasiński Leszek, Krech Ireneusz, Papageorgiou Nikolaos S.   +2 more
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Nature positive farm dams

Agricultural Water Management
Farm dams are a ubiquitous feature in agricultural landscapes worldwide, functioning as a major source of water for livestock or crop irrigation. Their number is increasing rapidly, often dominating the cumulative surface area of inland waters. Unmanaged
K.U.D.N. Hansani, Lukas Schuster, Peter I. Macreadie, Martino E. Malerba   +3 more
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