540 research outputs found
On the Approximate Periodicity of Sequences Attached to Non-Crystallographic Root Systems
We study Fomin-Zelevinsky's mutation rule in the context of noncrystallographic root systems. In particular, we construct approximately periodic sequences of real numbers for the noncrystallographic root systems of rank 2 by adjusting the exchange relation for cluster algebras. Moreover, we describe matrix mutation classes for type H3 and H4
Behavior of a Model Dynamical System with Applications to Weak Turbulence
We experimentally explore solutions to a model Hamiltonian dynamical system
derived in Colliander et al., 2012, to study frequency cascades in the cubic
defocusing nonlinear Schr\"odinger equation on the torus. Our results include a
statistical analysis of the evolution of data with localized amplitudes and
random phases, which supports the conjecture that energy cascades are a generic
phenomenon. We also identify stationary solutions, periodic solutions in an
associated problem and find experimental evidence of hyperbolic behavior. Many
of our results rely upon reframing the dynamical system using a hydrodynamic
formulation.Comment: 22 pages, 14 figure
Obras ganadoras del Certamen Literario 12 de octubre, DĂa de la Hispanidad : 2016
Fuego en la mirada / Eladio Andreu CĂĄmara. -- La pelĂcula ; Silencios y nostalgias ; Fusiles de hojalata ; Noches de insomnio / Juan Antonio Nkono Ekaha Ndoh
Context-dependent miR-204 and miR-211 affect the biological properties of amelanotic and melanotic melanoma cells
Menopausia y Terapia Hormonal de la Menopausia Las recomendaciones 2018 de la Unidad de EndocrinologĂa GinecolĂłgica de ClĂnica Alemana de Santiago -Sociedad Italiana de la Menopausia y la Sociedad Chilena de EndocrinologĂa GinecolĂłgica
ABSTRACT In the last decade, the risk benefits ratio of MHT has been evaluated mainly in terms of cardiovascular risk. Present Consensus Statement is largely inspired by the Global Consensus on Menopausal Hormone Therapy in 2013 and 2016 by leading global menopause societies (The American Society for Reproductive Medicine, The Asia Pacific Menopause Federation, The Endocrine Society, The European Menopause and Andropause Society, The International Menopause Society, The International Osteoporosis Foundation and The North American Menopause Society). The aim of these Recommendations is to provide a simple and updated reference on postmenopausal MHT. The term MHT typically includes estrogen replacement therapy (ERT) and estrogen-progestogen therapy (EPT). EPT can be sequential (Seq) when progestogen is added to ERT for 10-14 days a month, or continuous combined (CC) when progestogen is administered continuously every day along with a fixed amount of estrogen. MHT also includes Tibolone and the Tissue Selective Estrogen Complex (TSEC)
Early prediction of endocrine responsiveness in ER+/HER2-negative metastatic breast cancer (MBC): Pilot study with 18F-Fluoroestradiol (18F-FES) CT/PET
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