Results 31 to 40 of about 609,806 (243)

Semilinear systems with a multi-valued nonlinear term

Open Mathematics, 2017
Introducing a topological degree theory, we first establish some existence results for the inclusion h ∈ Lu − Nu in the nonresonance and resonance cases, where L is a closed densely defined linear operator on a Hilbert space with a compact resolvent and ...
Kim In-Sook, Hong Suk-Joon
doaj   +1 more source

A theory of degrees in education

Heliyon
Degrees are presumably the most important institution in education markets. However, despite their high relevance, degrees and their design features remain poorly understood within the economics of education. This study addresses this gap. We provide an accurate formal definition of what constitutes a degree and formulate the first theory of degree ...
Stefan Winter, Melissa Kistner, Deborah Maffia   +2 more
openaire   +4 more sources

Merging of degree and index theory

Fixed Point Theory and Applications, 2006
The topological approaches to find solutions of a coincidence equation can roughly be divided into degree and index theories. We describe how these methods can be combined. We are led to a concept of an extended degree theory for function triples which
Väth Martin
doaj   +2 more sources

Existence of positive solutions of a semipositone problem with Minkowski-curvature operator

Electronic Journal of Qualitative Theory of Differential Equations
We are concerned with the semipositone problem with Minkowski-curvature operator $$ \begin{cases} -\operatorname{div}\left(\frac{\nabla u}{\sqrt{1-|\nabla u|^2}}\right)=\lambda a(|x|)(u^\gamma-\epsilon), &x\in B(R),\\ u=0, &x\in \partial B(R), \end{cases}
Zhongzi Zhao
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

Signal Nonstationary Degree Evaluation Method Based on Moving Statistics Theory

Shock and Vibration, 2021
Nonstationary signal refers to the signal whose statistics change with time, and its nonstationary degree evaluation can provide effective support for the evaluation of the operating state of the signal source.
Haoxiang He, Shitao Cheng, Xiaofu Zhang
doaj   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld, Scott H. Maurer, Michelle D. Watkinson, John Nury, Elise Barberis, Molly C. Mack   +5 more
wiley   +1 more source

Periodic solution of a bioeconomic fishery model by coincidence degree theory

Electronic Journal of Qualitative Theory of Differential Equations, 2023
In this article we use coincidence degree theory to study the existence of a positive periodic solutions to the following bioeconomic model in fishery dynamics \begin{equation*}\label{eq1.3} \begin{cases} \frac{dn}{dt} = n \left(r(t) \left(1-\frac{n ...
Satyam Srivastava, Seshadev Padhi, Alexander Domoshnitsky   +2 more
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani, Rachel K. Peterson, Avani D. Rao, Laurie J. McKenzie, Ahmed Magdy Elmotayam, Leslie Chang, Michael Roth, Susan L. McGovern   +7 more
wiley   +1 more source

Streamlined subrecursive degree theory

Annals of Pure and Applied Logic, 2012
The paper under review consists of two parts. Part I is devoted to the investigation of the structure of honest elementary degrees, i.e., the degree structure induced on the honest functions by the reducibility relation ``being (Kalmar) elementary in''. In Part II the degree theory found in Part I is generalized.
Lars Kristiansen, Jan-Christoph Schlage-Puchta, Andreas Weiermann   +2 more
openaire   +1 more source