91 research outputs found
Finite mass self-similar blowing-up solutions of a chemotaxis system with non-linear diffusion
For a specific choice of the diffusion, the parabolic-elliptic
Patlak-Keller-Segel system with non-linear diffusion (also referred to as the
quasi-linear Smoluchowski-Poisson equation) exhibits an interesting threshold
phenomenon: there is a critical mass such that all the solutions with
initial data of mass smaller or equal to exist globally while the
solution blows up in finite time for a large class of initial data with mass
greater than . Unlike in space dimension 2, finite mass self-similar
blowing-up solutions are shown to exist in space dimension
Symbolic dynamics for the -centre problem at negative energies
We consider the planar -centre problem, with homogeneous potentials of
degree -\a<0, \a \in [1,2). We prove the existence of infinitely many
collisions-free periodic solutions with negative and small energy, for any
distribution of the centres inside a compact set. The proof is based upon
topological, variational and geometric arguments. The existence result allows
to characterize the associated dynamical system with a symbolic dynamics, where
the symbols are the partitions of the centres in two non-empty sets
Efecto del agua aplicada en las relaciones hĂdricas y productividad de la vid 'Crimson Seedless'
A new genotype of bovine leukemia virus in South America identified by NGS-based whole genome sequencing and molecular evolutionary genetic analysis
320 EFFECTS OF DIFFERENT ACTIVATION REGIMENS ON PRONUCLEAR FORMATION AND PRE-IMPLANTATION DEVELOPMENTAL COMPETENCE OF IN VITRO-MATURED BOVINE OOCYTES AFTER INTRACYTOPLASMIC SPERM INJECTION
134 EFFECT OF REPLACING FETAL BOVINE SERUM BY DIFFERENT GROWTH FACTORS IN THE PRE-IMPLANTATION DEVELOPMENT OF BOVINE EMBRYOS GENERATED BY IN VITRO FERTILIZATION
Prevalencia y distribuciĂłn espacial de brucelosis, leucosis bovina, diarrea viral bovina y rinotraqueĂtis infecciosa bovina a partir del análisis ELISA de estanques prediales en lecherĂas de la IX RegiĂłn, Chile
229 SHORT-TERM EXPOSURE OF MATURE OOCYTES TO A NITRIC OXIDE DONOR FOR INDUCING OXIDATIVE STRESS RESISTANCE ON IN VITRO-PRODUCED BOVINE EMBRYOS
34 EVALUATION OF DIFFERENT SEQUENTIAL CULTURE SYSTEMS ON THE DEVELOPMENT AND QUALITY OF BOVINE EMBRYOS GENERATED BY SOMATIC CELL NUCLEAR TRANSFER
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