Buscar
Mostrando ítems 11-20 de 27
Artículo
An hpr1 point mutation that impairs transcription and mRNP biogenesis without increasing recombination
(American Society for Microbiology, 2006)
THO/TREX, a conserved eukaryotic protein complex, is a key player at the interface between transcription and mRNP metabolism. The lack of a functional THO complex impairs transcription, leads to transcriptiondependent ...
Artículo
Chemical speciation of trace metals in fine airborne particles: advances in operational performance of a new sequential extraction scheme
(Taylor & Francis, 2006)
A speciation method of inorganic metal compounds in airborne particulate matter based on selective sequential extractions is described. The sequential leaching procedure was perfected for improvement of performance at ...
Artículo
Hydrodynamic approach to the evolution of cosmic structures - II. Study of N-body simulations at z = 0
(Oxford University Press, 2006)
We present a series of cosmological N-body simulations which make use of the hydrodynamic approach to the evolution of structures. This approach addresses explicitly the existence of a finite spatial resolution and the ...
Artículo
Lacunary non-continuable boundary-regular holomorphic functions with universal properties
(National Academy of Sciences of the Republic of Armenia, 2006)
A holomorphic function in a Jordan domain G in the complex plane is constructed with all its derivatives extending continuously up to the boundary G that happens to be a natural boundary of In addition the action of a ...
Artículo
A gene-specific requirement for FACT during transcription is related to the chromatin organization of the transcribed region
(2006)
The FACT complex stimulates transcription elongation on nucleosomal templates. In vivo experiments also involve FACT in the reassembly of nucleosomes traversed by RNA polymerase II. Since several features of chromatin ...
Artículo
Ob stars in the solar neighborhood. II. kinematics
(IOP Publishing Ltd., 2006-09)
Using the spatial classification method and the structural parameters estimated for the Gould Belt (GB) and the local Galactic disk (LGD) from a previous paper, we have evaluated spatial membership probabilities for a ...
Ponencia
Algoritmo adaptativo con el grado de movimiento para el desentrelazado de vídeo
(2006)
En esta comunicación se presenta un algoritmo adaptativo con el movimiento para el desentrelazado de vídeo. Se basa en un sistema de inferencia difuso, que realiza una interpolación entre dos técnicas lineales en función ...
Artículo
A novel approach to the synthesis of N-substituted 1-C-aminomethyl glycofuranosides
(2006)
Reductive amination of formyl C-glycofuranosides, easily available from hexose-derived equatorial-2-OH-glycopyranosides by DAST-promoted ring contraction, afforded N-substituted 1-C-aminomethyl glycofuranosides in most ...
Artículo
Soliton ratchets in homogeneous nonlinear Klein-Gordon systems
(2006)
We study in detail the ratchetlike dynamics of topological solitons in homogeneous nonlinear Klein-Gordon systems driven by a biharmonic force. By using a collective coordinate approach with two degrees of freedom, namely ...
Ponencia
Controlador difuso para problemas de navegación en presencia de obstáculos fijos
(2006)
En esta comunicación se describe un sistema de control difuso para aplicaciones de navegación de robots móviles autónomos en presencia de obstáculos fijos. Las herramientas de CAD del entorno Xfuzzy 3, desarrollado en el ...