Results 41 to 50 of about 318,420 (245)
Existence of bounded trajectories via upper and lower solutions
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MALAGUTI, Luisa, C. Marcelli
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ABSTRACT Background Pediatric bone sarcoma patients and survivors may experience psychosocial challenges related to childhood cancer after their intensive, body‐altering treatment. This cross‐sectional study aimed to evaluate generic and survivor‐specific psychosocial outcomes in a national cohort of pediatric bone sarcoma patients and survivors, and ...
Hinke van der Hoek +14 more
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Existence of traveling wave solutions with critical speed in a delayed diffusive epidemic model
In this paper, we prove the existence of a critical traveling wave solution for a delayed diffusive SIR epidemic model with saturated incidence. Moreover, we establish the nonexistence of traveling wave solutions with nonpositive wave speed for this ...
Yueling Cheng +3 more
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On the method of upper and lower solutions in abstract cones [PDF]
Consider the initial value problem (*) \(u'=f(t,u) u(0)=u_ 0 t\in I=[0,T]\) in the real B-space E. Let K be the normal cone in E and \(K^*\) its dual. Using the cone K one can define the partial order in E. If \(v_ 0\), \(w_ 0:I\to E\) are such that \(v_ 0(t)\leq w_ 0(t)\) for any \(t\in I\), let \([v_ 0,w_ 0]\) be the corresponding conical segment in ...
Lakshmikantham, V., Leela, S.
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ABSTRACT A lethal round‐cell malignancy with an MN1::ZNF341 fusion has recently been reported in three infants. Here, we describe four further tumors, three in newborns (including monozygotic twins), and one in an adolescent. Detailed clinical, radiological, and histopathological data differentiate these tumors from their main mimics, neuroblastoma and
Thomas R. W. Oliver +25 more
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In this article we extend the known theory of solution regions to encompass nonlinear boundary conditions. We both provide results for new boundary conditions and recover some known results for the linear case.
Marlène Frigon +2 more
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Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations
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 +18 more
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Existence of traveling wavefronts for integrodifference equations with bilateral exponential kernel
In this article, we study the existence of traveling wavefronts for integrodifference equation with a bilateral exponential kernel, namely, the Laplacian kernel.
Huaqin Peng, Zhiming Guo, Zizi Wang
doaj
ABSTRACT Background Pediatric cancer remains a leading cause of morbidity and mortality worldwide, particularly in low‐and middle‐income countries. Cancer treatment may impair nutritional status, alter body composition, and exacerbate cancer‐related fatigue (CRF).
Luís Carlos Lopes‐Junior +11 more
wiley +1 more source
Minimal wave speeds of delayed dispersal predator-prey systems with stage structure
This article concerns the minimal wave speed of delayed predator-prey systems with nonlocal dispersal and stage structure. By the method of upper and lower solutions, we prove the existence of positive traveling wave solutions.
Shuxia Pan
doaj

