Results 71 to 80 of about 246,608 (266)
Recurrent and weakly recurrent points in βG
International Journal of Mathematics and Mathematical Sciences, 1986 It is shown in this paper that if βG is the Stone-Čech compactification of a group G, and G satisfying a certain condition, then there is a weakly recurrent point in βG which is not almost periodic, and if another condition will be added, then there is a
Mostafa Nassar
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Neuroblastoma's complex, heterogeneous biology poses significant diagnostic and therapeutic challenges, often requiring caregivers to absorb complex information and participate in time‐sensitive decisions. However, caregivers often feel unprepared to evaluate options.
Vickie Buenger +8 more
wiley +1 more source
Galois Groups of Periodic Points
Journal of Algebra, 1998 A monic polynomial \(f(x)\) over a Dedekind domain \(R\) defines a dynamical system on the algebraic closure of the field of fractions of \(R\). The main result of this paper is an algebraic proof of a theorem characterizing the structure of the Galois group associated with the periodic orbits of \(f(x)\). One first constructs the polynomial \(\Phi_n(x)
openaire +2 more sources
Periodic solutions for discrete p(k) $p(k)$-Laplacian systems with partially periodic potential
Advances in Difference Equations, 2018 In this paper, we are concerned with the existence of periodic solutions for discrete p(k) $p(k)$-Laplacian systems with partially periodic potential. Some new existence results are obtained by using the generalized saddle point theorem in critical point
Shengui Zhang
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Impact of Metastatic Patterns on Survival and Response to Therapy in Neuroblastoma
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background While the presence of metastases in neuroblastoma (NB) is a well‐established prognostic factor, the clinical significance of dissemination patterns and tumour burden and their impact on response and survival remains poorly understood.
Mariona Morell‐Daniel +15 more
wiley +1 more source
Periodic points on the complement
Topology and its Applications, 2000 Nielsen fixed point theory furnishes a lower bound, the Nielsen number \(N(f)\), for the number of fixed points of any map homotopic to a map \(f:X\to X\) of a compact ANR. Nielsen periodic point theory concerns points of period \(n\), that is, fixed points of the \(n\)-th iterate \(f^n:X\to X\) of a map \(f\).
Heath, Philip R., Zhao, Xuezhi
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Chaotic Dynamics and Chaos Control of Hassell-Type Recruitment Population Model
Discrete Dynamics in Nature and Society, 2020 For certain parameters, the mapping of a Hassell-type recruitment population model has a chaotic attractor. The control parameter is disturbed slightly with time by the improvement OGY method.
Guo Feng
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background General pediatricians often evaluate hematologic and oncologic presentations before subspecialty consultation, yet the 2025 Accreditation Council for Graduate Medical Education (ACGME) pediatric requirements reduce inpatient pediatric hematology/oncology (PHO) time, raising questions about resident readiness.
Colburn Yu, Rohini Jain
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Stability Results for an Age-Structured SIS Epidemic Model with Vector Population
Journal of Applied Mathematics, 2015 We formulate an age-structured SIS epidemic model with periodic parameters, which includes host population and vector population. The host population is described by two partial differential equations, and the vector population is described by a single ...
He-Long Liu +2 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Germ cell tumors (GCTs) often arise in the ovaries and testes (extracranial) but can also develop in the brain (intracranial). We examined the relationship of individual, family, and community‐level socioeconomic status (SES) with stage of disease at diagnosis in a cohort of pediatric patients with GCT from Children's Oncology Group
Heydon K. Kaddas +7 more
wiley +1 more source