Results 31 to 40 of about 1,429,141 (363)
Distribution of Oikopleura Dioica (Tunicata, Appendicularia) associated with a coastal frontal system (39°- 41°s) of the SW Atlantic ocean in the spawning area of Engraulis Anchoita anchovy [PDF]
, 2013 Among tunicates, the small planktonic appendicularians generally comprise a significant fraction of the mesozooplankton in frontal systems. The summer 2011 distribution (vertical and spatial) of Oikopleura dioica was studied in terms of abundance ...
Capitanio, Fabiana Lia +3 more
core +4 more sources
Journal of Physics A: Mathematical and Theoretical, 2008 We define gradient networks as directed graphs formed by local gradients of a scalar field distributed on the nodes of a substrate network G. We derive an exact expression for the in-degree distribution of the gradient network when the substrate is a binomial (Erdos-Renyi) random graph, G(N,p).
Toroczkai, Zoltan +4 more
openaire +2 more sources
, 2006 Este trabalho foi desenvolvido na Empresa Estadual de Pesquisa Agropecuaria da Paraiba S.A. (EMEPA-PB), no municipio de Soledade, com o objetivo de avaliar os parâmetros fisiologicos (frequencia respiratoria, frequencia cardiaca e temperatura retal) e ...
J. R. S. Santos +4 more
semanticscholar +1 more source
Optimization Methods for Large-Scale Machine Learning [PDF]
SIAM Review, 2016 This paper provides a review and commentary on the past, present, and future of numerical optimization algorithms in the context of machine learning applications.
L. Bottou, Frank E. Curtis, J. Nocedal
semanticscholar +1 more source
Gradientes de qualidade em abacaxi 'Pérola' em função do tamanho e do estádio de maturação do fruto
, 2004 Frutos compostos podem apresentar variacoes expressivas nas propriedades da polpa, exigindo cuidados especiais nos procedimentos de controle de qualidade.
D. Reinhardt +4 more
semanticscholar +1 more source
ACM SIGGRAPH 2008 classes, 2008 A new method for improving the accuracy of a diffuse interreflection calculation is introduced in a ray tracing context. The information from a hemispherical sampling of the luminous environment is interpreted in a new way to predict the change in irradiance as a function of position and surface orientation.
Ward, Gregory J., Heckbert, Paul S.
openaire +2 more sources
, 2007 Las propuestas silviculturales disminuyen la apertura del dosel, estimulando el crecimiento de las plantulas al modificar la disponibilidad de luz y humedad del suelo. La supervivencia dependera de su adaptacion a estas nuevas condiciones ambientales. El
M. V. Lencinas +4 more
semanticscholar +1 more source
Revista de Investigación en Psicología, 2016 Objetivos. Conocer los niveles de vocabulario receptivo en madres y hermanos de niños de zonas rurales y explorar sus relaciones con el nivel socioeconómico y la educación de la madre. Materiales y métodos.
Fernando Llanos Z. +4 more
doaj +1 more source
Gradient Convergence in Gradient methods with Errors [PDF]
SIAM Journal on Optimization, 2000 Summary: We consider the gradient method \(x_{t+1}=x_t+\gamma_t(s_t+w_t)\), where \(s_t\) is a descent direction of a function \(f:{\mathfrak R}^n\to{\mathfrak R}\) and \(w_t\) is a deterministic or stochastic error. We assume that \(\nabla f\) is Lipschitz continuous, that the stepsize \(\gamma_t\) diminishes to 0, and that \(s_t\) and \(w_t\) satisfy
Bertsekas, Dimitri P. +1 more
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The Journal of Cell Biology, 2005 One RanGTP gradient builds on another to spatially guide mitotic spindle assembly, say Maiwen Caudron, Eric Karsenti (European Molecular Biology Laboratory, Heidelberg, Germany), and colleagues. Figure The RanGTP-importin β gradient (red) promotes microtubule nucleation (blue) and stabilization (green).
openaire +2 more sources