Results 71 to 80 of about 564,884 (264)
Cheap complex limit cycles [PDF]
Nonlinearity, 2018 Abstract Consider a holomorphic foliation with singularities of a two-dimensional complex manifold. In this article we prove a new sufficient condition for this foliation to have an infinite set of homologically independent complex limit cycles.
N Goncharuk, Yu Kudryashov
openaire +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider +15 more
wiley +1 more source
Explicit limit cycles of a family of polynomial differential systems
Electronic Journal of Differential Equations, 2017 We consider the family of polynomial differential systems $$\displaylines{ x' = x+( \alpha y-\beta x) (ax^2-bxy+ay^2) ^{n}, \cr y' = y-( \beta y+\alpha x) (ax^2-bxy+ay^2) ^{n}, }$$ where a, b, $\alpha $, $\beta $ are real constants and n is ...
Rachid Boukoucha
doaj
Natural Killer Cells in Paediatric Soft Tissue Sarcomas: A Systematic Review
Pediatric Blood &Cancer, EarlyView.ABSTRACT Paediatric soft tissue sarcomas (pSTS) are a rare and heterogeneous group of malignant tumours arising in tissues of mesenchymal origin. The role of natural killer (NK) cells in pSTS remains poorly understood, with evidence fragmented across small preclinical studies and early‐phase clinical trials.
Raya Dean +7 more
wiley +1 more source
REDUCE and the bifurcation of limit cycles
Journal of Symbolic Computation, 1990 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Noel G. Lloyd, Jane M. Pearson
openaire +2 more sources
Approximation for limit cycles and their isochrons
Comptes Rendus. Biologies, 2006 Local analysis of trajectories of dynamical systems near an attractive periodic orbit displays the notion of asymptotic phase and isochrons. These notions are quite useful in applications to biosciences. In this note, we give an expression for the first approximation of equations of isochrons in the setting of perturbations of polynomial Hamiltonian ...
Demongeot, Jacques +1 more
openaire +4 more sources
A Simple Predator-Prey Population Model with Rich Dynamics
Applied Sciences, 2016 A non-smooth switched harvest on predators is introduced into a simple predator-prey model with logistical growth of the prey and a bilinear functional response.
Bing Li +3 more
doaj +1 more source
Synchronization of spin-driven limit cycle oscillators optically levitated in vacuum. [PDF]
Nat Commun, 2023 Brzobohatý O +6 more
europepmc +1 more source
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source