Results 51 to 60 of about 6,209,872 (360)
Pediatric Blood &Cancer, EarlyView.ABSTRACT We present two pediatric cases of pediatric low‐grade gliomas (PLGG) with BRAF V600E mutations diagnosed and monitored using cerebrospinal fluid (CSF) liquid biopsy analyzed via digital droplet PCR (ddPCR), without tissue biopsy. Both patients were treated with dabrafenib and trametinib and monitored through clinical assessments, magnetic ...
Hannah Sultan +5 more
wiley +1 more source
Selecciones Matemáticas, 2020 In the ecological literature, the interference (self-interference) or competition among predators to effect the harvesting of their prey has been modeled by different mathematical formulations. In this work, we will establish the dynamical properties of
Eduardo González-Olivares +1 more
doaj +1 more source
Limit cycles and conformal invariance [PDF]
Journal of High Energy Physics, 2013 Abstract There is a widely held belief that conformal field theories (CFTs) require zero beta functions. Nevertheless, the work of Jack and Osborn implies that the beta functions are not actually the quantites that decide conformality, but until recently no such behavior had been exhibited.
Fortin, Jean-François +2 more
openaire +4 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction Neuroblastoma (NB) with central nervous system (CNS) metastases is rare at diagnosis, but occurs more often during relapse/progression. Patients with CNS metastases face a dismal prognosis, with no standardized curative treatment available.
Vicente Santa‐Maria Lopez +13 more
wiley +1 more source
Rational limit cycles of Abel differential equations
Electronic Journal of Qualitative Theory of Differential Equations, 2023 We study the number of rational limit cycles of the Abel equation $x'=A(t)x^3+B(t)x^2$, where $A(t)$ and $B(t)$ are real trigonometric polynomials. We show that this number is at most the degree of $A(t)$ plus one.
José Luis Bravo +2 more
doaj +1 more source
Limit cycles in four dimensions [PDF]
Journal of High Energy Physics, 2012 We present an example of a limit cycle, i.e., a recurrent flow-line of the beta-function vector field, in a unitary four-dimensional gauge theory. We thus prove that beta functions of four-dimensional gauge theories do not produce gradient flows. The limit cycle is established in perturbation theory with a three-loop calculation which we describe in ...
Fortin, Jean-François +2 more
openaire +5 more sources
Limit-cycle dynamics with reduced sensitivity to perturbations.
Physical Review Letters, 2014 Limit-cycle oscillators are used to model a broad range of periodic nonlinear phenomena. Using the optically injected semiconductor laser as a paradigmatic example, we demonstrate that at specific operating points, the period-one oscillation frequency is
T. Simpson +4 more
semanticscholar +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Despite their increased risk for functional impairment resulting from cancer and its treatments, few adolescents and young adults (AYAs) with a hematological malignancy receive the recommended or therapeutic dose of exercise per week during inpatient hospitalizations.
Jennifer A. Kelleher +8 more
wiley +1 more source
一类Lienard系统的Hopf环形数(Hopf cyclicity for a Lienard system)
Zhejiang Daxue xuebao. Lixue ban, 2011 The number of limit cycles of a Lienard system ， is studied，where Fn (x) and Pm (x) are polynomials of x with degree n and m respectively. By using a general theorem on Hopf bifurcation of limit cycles, some concrete Hopf cyclicity are given.
YANDong-mei(严冬梅), TIANYun(田云)
doaj +1 more source
Some bifurcation methods of finding limit cycles
Mathematical Biosciences and Engineering, 2005 In this paper we outline some methods of finding limit cycles for planar autonomous systems with small parameter perturbations. Three ways of studying Hopf bifurcations and the method of Melnikov functions in studying Poincaré bifurcations are introduced
Maoan Han, Tonghua Zhang
doaj +1 more source