Results 91 to 100 of about 499,713 (313)
Molecular Oncology, EarlyView.Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau +36 more
wiley +1 more source
Low-frequency fluctuations in the Lang-Kobayashi equations
Physical Review E, 2003 The Lang-Kobayashi equations are simplified by a local analysis that focuses, in the long-delay-time limit, on one pair of mode-antimode only. In the domain of hysteresis between the two steady states, low frequency fluctuations (LFF) can be observed if there is a domain of bistability where both steady states are unstable.
Pieroux, Didier, Mandel, Paul
openaire +3 more sources
Description of Multichannel Amplification in Semiconductor Optical Amplifier
International Journal of Engineering Business Management, 2012 In this paper, a generalized equation of pulse propagation in semiconductor optical amplifier (SOA) under the effects of four wave mixing (FWM) has been derived.
Sadiq Jaafar Kadhim +2 more
doaj +1 more source
Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma
Molecular Oncology, EarlyView.The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic +5 more
wiley +1 more source
Accuracy-enhancing methods for balancing-related frequency-weighted model and controller reduction
, 2003 We consider the solution of the balancing-related frequency-weighted model and controller reduction problems using accuracy enhanced numerical algorithms.
Varga, Andras, Anderson, Brain D.O.
core
Relativistic Black–Scholes Equation
Ecuación Black-Scholes relativistaEl modelo de Black Scholes presentado en este trabajo es una generalización a la versión relativista que no es muy conocida desde a la versión original de 1973, debido a que sus efectos aún son poco significativos. En el
Sierra Juárez, Guillermo
core +1 more source
Spectral analysis in high frequency radar oceanography [PDF]
, 2006 High Frequency radar systems provide a unique opportunity to measure evolving littoral oceanic dynamics at high temporal and spatial resolution. Backscattered electromagnetic signals from ocean waves are modulated by Bragg resonant scattering.
Middleditch, Andrew
core
SensorsBased on the energy equation of the hemispherical resonator, this study analyzes the influence of ion beam balancing on the frequency split of the hemispherical resonator.
Boran Li, Changhong Wang, Zhen Fang
doaj +1 more source
Molecular Oncology, EarlyView.Beyond its role in immune evasion, this study identified that CD47 drives tumor‐intrinsic signaling in non‐small cell lung cancer (NSCLC). Transcriptomic profiling and functional studies revealed that CD47 regulates cell adhesion, migration, and metastasis through an ERK–EMT signaling axis.
Asa P.Y. Lau +8 more
wiley +1 more source
On frequency-weighted coprime factorization based controller reduction
, 2003 We consider the efficient solution of a class of coprime factorization based controller approximation problems by using frequency-weighted balancing related model reduction approaches.
Varga, Andras
core